EXHIBIT 4.1


                                JUAN C. FERREIRA

                             Advertising Consultant

                           Marketing Service Agreement


This  agreement is made and entered into this 17th day February,  2004,  between
Juan C. Ferreira located at 468 Wild Oak Circle Longwood, Fl.32779,  hereinafter
referred to as JCF and NanoSignal Corp. located at 345 Southpointe Blvd. Ste 110
Cannonsburg, PA. 15317 hereinafter referred to as the Company.

WHEREAS JCF is a public relations / advertising  consultant  specializing in the
dissemination of information about companies, their products and services and

WHEREAS  the Company is publicly  held with its common  stock  trading on one or
more stock exchanges and or over the counter and

WHEREAS the Company desires to publicize itself with the intention of making its
name and business better known to its market sector and potential customers and

WHEREAS JCF is willing to accept the company as a client

Now, therefore, in consideration of the mutual covenants herein contained, it is
agreed

Engagement  : The  Company  hereby  engages  JCF to  publicize  the  Company  to
prospective  customers,  and to provide greater industry  presence.  JCF will be
available to the Company for all  corporate  communication  consulting  purposes
such as press release  editing,  media component  selection,  image branding and
additional  minimum audience (in excess of 500,000)  dissemination of summarized
news  developments   once  per  quarter.   JCF  will  coordinate  all  corporate
communication  components,  and  media  inquiries  throughout  the  term  of the
agreement. The term of this agreement will be for 6 months

Marketing  Program : JCF will  produce  and  publish a Company  feature on the E
Street  Journal.  JCF will arrange for the Company to be advertised,  showcased,
and or  interviewed  on a minimum of 130 radio  networks  nationwide on American
Scene with Steve Crowley over a 13 week period. All additional media components,
(agreed to and paid for by the Company in addition) utilized will be designed to
provide data capture of all inquiries for future ongoing corporate communication
activities such as press releases, or website traffic.  Media Components include
but not limited to trade shows, local or national television, radio appearances,
direct mail, opt in email, news print, etc.

Time of  Performance:  Services  to be  performed  under  this  agreement  shall
commence upon execution of this  agreement and shall  continue until  completion
which is expected to occur within 6 months from the date of this agreement.



Total  Compensation  and  Expenses:  In  consideration  of the  service's  to be
performed by JCF, the Company agrees to secure compensation to JCF in the amount
of 300,000 free trade shares of the Company's common stock. Any additional media
components  over and above  the E Street  Journal  feature  and  national  radio
coverage,  as stated above in the Marketing  Program  section will be charged at
stated vendor retail prices. There will be no markup.

Representation  and Warranties of the Company:  The Company will cooperate fully
and  timely  with JCF to  enable  JCF to  perform  its  obligations  under  this
agreement.  JCF will rely on all  information  obtained  from the  Company to be
true, not misleading in any aspect, the Company will act diligently and promptly
in reviewing  materials  submitted to it by JCF to enhance  distribution  of the
materials.

Executed as a sealed instrument as of the day and year first written above.


JUAN C. FERREIRA                          NANOSIGNAL CORP. INC


/s/ Juan C. Ferreira                      /s/ Scott A. Irvin
                                          CEO

PRESIDENT                                 CEO