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  <xsd:element name="StockIssuedDuringPeriodValueFinderFees" id="trov_StockIssuedDuringPeriodValueFinderFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesFinderFees" id="trov_StockIssuedDuringPeriodSharesFinderFees" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalWarrantIssuedOther" id="trov_AdjustmentsToAdditionalPaidInCapitalWarrantIssuedOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalUnitsIssuedOther" id="trov_AdjustmentsToAdditionalPaidInCapitalUnitsIssuedOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AmortizationOfDeferredStockBasedCompensationExpense" id="trov_AmortizationOfDeferredStockBasedCompensationExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForOptionsIssuedToConsultants" id="trov_AdjustmentToAdditionalPaidInCapitalForOptionsIssuedToConsultants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForWarrantsIssuedToConsultants" id="trov_AdjustmentToAdditionalPaidInCapitalForWarrantsIssuedToConsultants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ReturnOfTreasuryStockFromEscrowDuringPeriodValue" id="trov_ReturnOfTreasuryStockFromEscrowDuringPeriodValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ReturnOfTreasuryStockFromEscrowShares" id="trov_ReturnOfTreasuryStockFromEscrowShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConvertiblePreferredStockSharesConvertedToOtherSecurities" id="trov_ConvertiblePreferredStockSharesConvertedToOtherSecurities" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ReclassificationOfDeferredUnamortizedStockBasedCompensation" id="trov_ReclassificationOfDeferredUnamortizedStockBasedCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForValueAttributedToWarrants" id="trov_AdjustmentToAdditionalPaidInCapitalForValueAttributedToWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToTemporaryEquityForFindersFeesAndExpenses" id="trov_AdjustmentToTemporaryEquityForFindersFeesAndExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueConvertibleDebentureForbearanceAgreement" id="trov_StockIssuedDuringPeriodValueConvertibleDebentureForbearanceAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesConvertibleDebentureForbearanceAgreement" id="trov_StockIssuedDuringPeriodSharesConvertibleDebentureForbearanceAgreement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustmentsOther" id="trov_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustmentsOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesNetOfAdjustmentsOther" id="trov_StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesNetOfAdjustmentsOther" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForFindersFeesAndExpensesOne" id="trov_AdjustmentToAdditionalPaidInCapitalForFindersFeesAndExpensesOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForFindersFeesAndExpensesTwo" id="trov_AdjustmentToAdditionalPaidInCapitalForFindersFeesAndExpensesTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForWarrantsIssuedToSellingAgents" id="trov_AdjustmentToAdditionalPaidInCapitalForWarrantsIssuedToSellingAgents" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalWarrantCharged" id="trov_AdjustmentsToAdditionalPaidInCapitalWarrantCharged" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForFindersFeesAndExpensesPreferredStock" id="trov_AdjustmentToAdditionalPaidInCapitalForFindersFeesAndExpensesPreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueReclassificationOfTemporaryEquity" id="trov_StockIssuedDuringPeriodValueReclassificationOfTemporaryEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesReclassificationOfTemporaryEquity" id="trov_StockIssuedDuringPeriodSharesReclassificationOfTemporaryEquity" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ReclassificationOfDerivativeFinancialInstruments" id="trov_ReclassificationOfDerivativeFinancialInstruments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CommonStockIssuedDuringPeriodValuePrivatePlacement" id="trov_CommonStockIssuedDuringPeriodValuePrivatePlacement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CommonStockIssuedDuringPeriodSharesPrivatePlacement" id="trov_CommonStockIssuedDuringPeriodSharesPrivatePlacement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalWarrantsPriceProtectedUnitsValue" id="trov_AdjustmentsToAdditionalPaidInCapitalWarrantsPriceProtectedUnitsValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalWarrantsReclassifiedAmount" id="trov_AdjustmentsToAdditionalPaidInCapitalWarrantsReclassifiedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueSellingAgents" id="trov_StockIssuedDuringPeriodValueSellingAgents" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesSellingAgents" id="trov_StockIssuedDuringPeriodSharesSellingAgents" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueNonExclusiveSellingAgentAgreement" id="trov_StockIssuedDuringPeriodValueNonExclusiveSellingAgentAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesNonExclusiveSellingAgentAgreement" id="trov_StockIssuedDuringPeriodSharesNonExclusiveSellingAgentAgreement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueConsultingServicesRendered" id="trov_StockIssuedDuringPeriodValueConsultingServicesRendered" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesConsultingServicesRendered" id="trov_StockIssuedDuringPeriodSharesConsultingServicesRendered" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueForLegalFees" id="trov_StockIssuedDuringPeriodValueForLegalFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesForLegalFees" id="trov_StockIssuedDuringPeriodSharesForLegalFees" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueSeverance" id="trov_StockIssuedDuringPeriodValueSeverance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesSeverance" id="trov_StockIssuedDuringPeriodSharesSeverance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueConsultingAgreement" id="trov_StockIssuedDuringPeriodValueConsultingAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesConsultingAgreement" id="trov_StockIssuedDuringPeriodSharesConsultingAgreement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForDonatedServices" id="trov_AdjustmentToAdditionalPaidInCapitalForDonatedServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesSecond" id="trov_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesSecond" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesSecond" id="trov_StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesSecond" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueAccruedConsultingAgreement" id="trov_StockIssuedDuringPeriodValueAccruedConsultingAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesAccruedConsultingAgreement" id="trov_StockIssuedDuringPeriodSharesAccruedConsultingAgreement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalToLeadInvestorsOfDebentures" id="trov_AdjustmentToAdditionalPaidInCapitalToLeadInvestorsOfDebentures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationNonEmployeesRequisiteServicePeriodRecognitionValue" id="trov_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationNonEmployeesRequisiteServicePeriodRecognitionValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForAccretionOfConvertibleNoteDiscount" id="trov_AdjustmentToAdditionalPaidInCapitalForAccretionOfConvertibleNoteDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalToLeadInvestorsOfPutTransaction" id="trov_AdjustmentToAdditionalPaidInCapitalToLeadInvestorsOfPutTransaction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentToAdditionalPaidInCapitalForShareIssuedForDonatedServices" id="trov_AdjustmentToAdditionalPaidInCapitalForShareIssuedForDonatedServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="TemporaryEquityUnregisteredCommonStockMember" id="trov_TemporaryEquityUnregisteredCommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EtherogenIncMember" id="trov_EtherogenIncMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfCommonStockToFoundersForCashPerShare" id="trov_IssuanceOfCommonStockToFoundersForCashPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfCommonStockForCashPerShare" id="trov_IssuanceOfCommonStockForCashPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfCommonStockAndWarrantsForCashPerShare" id="trov_IssuanceOfCommonStockAndWarrantsForCashPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfWarrantsToSellingAgentsShare" id="trov_IssuanceOfWarrantsToSellingAgentsShare" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfWarrantsToSellingAgentsShareOther" id="trov_IssuanceOfWarrantsToSellingAgentsShareOther" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfUnitsToFindersShareOther" id="trov_IssuanceOfUnitsToFindersShareOther" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfPreferredStockAndWarrantsForCashPerShare" id="trov_IssuanceOfPreferredStockAndWarrantsForCashPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfCommonStockAndWarrantsOtherForCashPerShare" id="trov_IssuanceOfCommonStockAndWarrantsOtherForCashPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FoundersCompensationContributedToEquity" id="trov_FoundersCompensationContributedToEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DonatedServicesContributedToEquity" id="trov_DonatedServicesContributedToEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="SettlementOfConsultingServicesInStock" id="trov_SettlementOfConsultingServicesInStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockBasedLiquidatedDamagesAndForbearanceSettlementCosts" id="trov_StockBasedLiquidatedDamagesAndForbearanceSettlementCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockBasedExpenseForSeverancePay" id="trov_StockBasedExpenseForSeverancePay" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockBasedExpenseForLegalFees" id="trov_StockBasedExpenseForLegalFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockBasedExpenseForConsultingServices" id="trov_StockBasedExpenseForConsultingServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromNonExclusiveSellingAgentAgreement" id="trov_ProceedsFromNonExclusiveSellingAgentAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PaymentForRecapitalizationCost" id="trov_PaymentForRecapitalizationCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ConversionOfStockAbstract" id="trov_ConversionOfStockAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SurrenderOfPreferredStock" id="trov_SurrenderOfPreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedTwo" id="trov_StockIssuedTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PreferredStockDividendAccrued" id="trov_PreferredStockDividendAccrued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="InterestPaidOnCommonStock" id="trov_InterestPaidOnCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="SurrenderOfPreferredStockShares" id="trov_SurrenderOfPreferredStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommonStockIssuedInLieuOfCashPaymentShares" id="trov_CommonStockIssuedInLieuOfCashPaymentShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityOfferingTable" id="trov_EquityOfferingTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TypeOfOfferingAxis" id="trov_TypeOfOfferingAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TypeOfOfferingDomain" id="trov_TypeOfOfferingDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ComponentsOfChangeDomain" id="trov_ComponentsOfChangeDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WarrantsIssuedDuringPeriodMember" id="trov_WarrantsIssuedDuringPeriodMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PublicOfferingMember" id="trov_PublicOfferingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityOfferingLineItems" id="trov_EquityOfferingLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitsIssuedDuringPeriodNewIssues" id="trov_UnitsIssuedDuringPeriodNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SaleOfCapitalUnitNumberOfCommonSharesInEachUnit" id="trov_SaleOfCapitalUnitNumberOfCommonSharesInEachUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="SaleOfCapitalUnitNumberOfWarrantsInEachUnit" id="trov_SaleOfCapitalUnitNumberOfWarrantsInEachUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="EquityIssuanceAmountOfUnderwritingDiscountsAndCommissions" id="trov_EquityIssuanceAmountOfUnderwritingDiscountsAndCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="EquityIssuanceAmountOfOfferingExpenses" id="trov_EquityIssuanceAmountOfOfferingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PeriodFromDateOfProspectusForTransferabilityOfCommonStockAndWarrants" id="trov_PeriodFromDateOfProspectusForTransferabilityOfCommonStockAndWarrants" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightTermOfWarrantsOrRights" id="trov_ClassOfWarrantOrRightTermOfWarrantsOrRights" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockholdersEquityNoteReverseStockSplitConversionRatio" id="trov_StockholdersEquityNoteReverseStockSplitConversionRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GoingConcernAbstract" id="trov_GoingConcernAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PeriodWithinWhichAdditionalCapitalIsRequiredToBeRaised" id="trov_PeriodWithinWhichAdditionalCapitalIsRequiredToBeRaised" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePricePerShareRangeAbstract" id="trov_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePricePerShareRangeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodOptionExercisePriceUpperEndOfTheRangeLimit" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodOptionExercisePriceUpperEndOfTheRangeLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodOptionExercisePriceLowerRangeLimit" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodOptionExercisePriceLowerRangeLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodOptionExercisePrice" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodOptionExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableInPeriodOptionExercisePriceUpperRangeLimit" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableInPeriodOptionExercisePriceUpperRangeLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableInPeriodOptionExercisePriceLowerRangeLimit" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableInPeriodOptionExercisePriceLowerRangeLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodIntrinsicValue" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssued" id="trov_ClassOfWarrantOrRightNumberOfWarrantsIssued" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfPrivatePlacementFinancings" id="trov_NumberOfPrivatePlacementFinancings" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromIssuanceOfCommonStockGross" id="trov_ProceedsFromIssuanceOfCommonStockGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PaymentOfFindersFees" id="trov_PaymentOfFindersFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="MultiGenDiagnosticsIncMember" id="trov_MultiGenDiagnosticsIncMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfStockholdersEquityTable" id="trov_ScheduleOfStockholdersEquityTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityIssuanceByRecipientsAxis" id="trov_EquityIssuanceByRecipientsAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityIssuanceRecipientsDomain" id="trov_EquityIssuanceRecipientsDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SellingAgentsMember" id="trov_SellingAgentsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LicensingAgreementsDisclosureAbstract" id="trov_LicensingAgreementsDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="JointVentureDisclosureAbstract" id="trov_JointVentureDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="JointVentureDisclosureTextBlock" id="trov_JointVentureDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BasisOfPresentationAndGoingConcernDisclosureAbstract" id="trov_BasisOfPresentationAndGoingConcernDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BasisOfPresentationAndGoingConcernTextBlock" id="trov_BasisOfPresentationAndGoingConcernTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SignificantAcquisitionsAndDisposalsPurchasePriceAllocationNumberOfAssets" id="trov_SignificantAcquisitionsAndDisposalsPurchasePriceAllocationNumberOfAssets" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SignificantAcquisitionsAndDisposalsContingentConsiderationFairValue" id="trov_SignificantAcquisitionsAndDisposalsContingentConsiderationFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfComponentsOfChangesInDerivativeFinancialLiabilityTableTextBlock" id="trov_ScheduleOfComponentsOfChangesInDerivativeFinancialLiabilityTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BlackScholesOptionPricingMethodMember" id="trov_BlackScholesOptionPricingMethodMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BinomialOptionPricingMethodMember" id="trov_BinomialOptionPricingMethodMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FairValueOfCommonStockPerShare" id="trov_FairValueOfCommonStockPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativeFinancialInstrumentsLiabilityRollForward" id="trov_DerivativeFinancialInstrumentsLiabilityRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativeFinancialInstrumentsNumberOfPriceProtectedUnitsOutstanding" id="trov_DerivativeFinancialInstrumentsNumberOfPriceProtectedUnitsOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="DerivativeLiabilitiesForIssuedUnits" id="trov_DerivativeLiabilitiesForIssuedUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AccumulatedFairValueChanges" id="trov_AccumulatedFairValueChanges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="DerivativeFinancialInstrumentsChangeInNumberOfUnitsOutstanding" id="trov_DerivativeFinancialInstrumentsChangeInNumberOfUnitsOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativeFinancialInstrumentsChangeInUnitsOutstandingValue" id="trov_DerivativeFinancialInstrumentsChangeInUnitsOutstandingValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AutomaticRenewalPeriodFromEndOfEachTermOfAgreement" id="trov_AutomaticRenewalPeriodFromEndOfEachTermOfAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BonusAsPercentageOfBaseSalary" id="trov_BonusAsPercentageOfBaseSalary" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CompensationPerYearAmount" id="trov_CompensationPerYearAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ConsultingAgreementToProvideBusinessDevelopmentServicesMember" id="trov_ConsultingAgreementToProvideBusinessDevelopmentServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AgreementWithIpsogenSAMember" id="trov_AgreementWithIpsogenSAMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConsultingAgreementToProvidePublicRelationsAndPublicityServicesMember" id="trov_ConsultingAgreementToProvidePublicRelationsAndPublicityServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NonQualifiedStockOptionsMember" id="trov_NonQualifiedStockOptionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeverancePaymentEqualToBaseCompensationInCaseOfTerminationDueToChangeInControlPeriod" id="trov_SeverancePaymentEqualToBaseCompensationInCaseOfTerminationDueToChangeInControlPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCausePeriodUnderConditionOne" id="trov_SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCausePeriodUnderConditionOne" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCausePeriodUnderConditionTwo" id="trov_SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCausePeriodUnderConditionTwo" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCauseSpecifiedPeriodAfterEffectiveDate" id="trov_SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCauseSpecifiedPeriodAfterEffectiveDate" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCauseSubsequentToSpecifiedPeriodFromEffectiveDate" id="trov_SeverancePaymentEqualToBaseCompensationInCaseOfTerminationWithoutCauseSubsequentToSpecifiedPeriodFromEffectiveDate" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardExercisablePeriodAfterTerminationDueToChangeInControl" id="trov_ShareBasedCompensationArrangementsByShareBasedPaymentAwardExercisablePeriodAfterTerminationDueToChangeInControl" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockOptionsWithPerformanceVestingCriteriaMember" id="trov_StockOptionsWithPerformanceVestingCriteriaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockOptionsWithTimeVestingCriteriaMember" id="trov_StockOptionsWithTimeVestingCriteriaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceRange.50To2.50Member" id="trov_ExercisePriceRange.50To2.50Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceRange3.00To4.68Member" id="trov_ExercisePriceRange3.00To4.68Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceRange3.00To15.00Member" id="trov_ExercisePriceRange3.00To15.00Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ContractualCommitmentTable" id="trov_ContractualCommitmentTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ContractualCommitmentsByTypeAxis" id="trov_ContractualCommitmentsByTypeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ContractualCommitmentsByTypeDomain" id="trov_ContractualCommitmentsByTypeDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitsIssuedDuringPeriod" id="trov_UnitsIssuedDuringPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SignificantAcquisitionsAndDisposalsContingentConsiderationPotentialPayment" id="trov_SignificantAcquisitionsAndDisposalsContingentConsiderationPotentialPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="UnitsExercisedByUnderwritersDueToOverallotmentOfOption" id="trov_UnitsExercisedByUnderwritersDueToOverallotmentOfOption" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssuedRelatedToPrivatePlacements" id="trov_ClassOfWarrantOrRightNumberOfWarrantsIssuedRelatedToPrivatePlacements" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssuedToUnderwriters" id="trov_ClassOfWarrantOrRightNumberOfWarrantsIssuedToUnderwriters" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssuedInPublicOffering" id="trov_ClassOfWarrantOrRightNumberOfWarrantsIssuedInPublicOffering" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssuedToRelatedParty" id="trov_ClassOfWarrantOrRightNumberOfWarrantsIssuedToRelatedParty" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConsultingAgreementToProvideScientificConsultingServicesMember" id="trov_ConsultingAgreementToProvideScientificConsultingServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ComponentsOfChangeAxis" id="trov_ComponentsOfChangeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConsultantServicesMonthlyFee" id="trov_ConsultantServicesMonthlyFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PaymentOfCommittedServiceFees" id="trov_PaymentOfCommittedServiceFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualGrant" id="trov_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualGrant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
</xsd:schema>
