Exhibit 2.2

                                                                           FILED
                                                                    No. C8952-98
                                                                October 31, 2002
                                                                In the office of
                                                 Dean Heller, Secretary of State

                               ARTICLES OF MERGER
                      PROHEALTH MEDICAL TECHNOLOGIES, INC.
                             (a Nevada corporation)
                    APPLIED DNA SCIENCES, INC. (ADNAS, Inc.)
                             (a Nevada corporation)

The undersigned parent-subsidiary  corporations desiring to merge a wholly-owned
Nevada subsidiary  corporation,  Applied DNA Sciences, Inc. (ADNAS, Inc.) as the
merging  corporation,  with and into its Nevada  parent  corporation,  ProHealth
Medical Technologies, Inc., as the surviving corporation, hereby sign, seal, and
present for filing  these  Articles of Merger as required by Section  92A.180 of
the Nevada Revised Statutes ("NRS") as follows:

1. The names of the constituent corporations are:

                              Merging Corporation:

Applied DNA Sciences,  Inc. (ADNAS,  Inc.), a Nevada  corporation,  which is the
wholly-owned  subsidiary  of  ProHealth  Medical  Technologies,  Inc.,  a Nevada
corporation which is the surviving corporation of this merger.

                             Surviving Corporation:

ProHealth Medical Technologies,  Inc., a Nevada corporation, which is the parent
of Applied DNA Sciences, Inc. (ADNAS, Inc.), also a Nevada corporation.

2. The addresses of the corporations are as follows:

Applied DNA Sciences, Inc. (ADNAS, Inc.):     9255 West Sunset Blvd.  Suite 805,
                                              Los Angeles, California 90069

ProHealth Medical Technologies, Inc.:         211 West Wall Street,
                                              Midland, Texas    70701

3. This  merger is  permitted  under the laws of the State  Nevada.  Applied DNA
Sciences,  Inc.  (ADNAS,  Inc.) and ProHealth  Medical  Technologies,  Inc. have
complied with the  applicable  provisions of the  corporation  laws of the State
Nevada.

4. The new  primary  address  for the  surviving  corporation  will be 9255 West
Sunset Blvd. Suite 805, Los Angeles, California 90069.

5. The Plan of Reorganization and Plan of Merger were adopted unanimously by the
Boards of  Directors  of ProHealth  Medical  Technologies,  Inc. and Applied DNA
Sciences,  Inc.  (ADNAS,  Inc.)  Neither the Merging  Corporation  [Applied  DNA
Sciences,  Inc.(ADNAS,  Inc.)] nor the Surviving Corporation  (ProHealth Medical
Technologies,  Inc.) were required to seek shareholder  approval for this action
as this merger qualified as a parent/subsidiary  merger under Section 92A.190 of
the NRS.

6. As a result of this merger,  the shares of the Merging  Corporation have been
canceled.

7. The Articles of Incorporation of ProHealth Medical Technologies, Inc. will be
amended  in  conjunction  with  the  merger.   Article  I  of  the  Articles  of
Incorporation  is  hereby  amended  to  read  as  follows:  I.  The  name of the
corporation is: Applied DNA Sciences, Inc.



ARTICLES OF MERGER ProHealth Medical Technologies, Inc. (Nevada) and Applied DNA
Sciences, Inc. (ADNAS, Inc.) (Nevada)
PAGE 2

8. The merger shall be effective  upon the filing of these Articles of Merger in
the State of Nevada.

9. The  surviving  corporation  agrees that it may be served with process in the
State of California in "any  proceeding for enforcement of any obligation of the
merging corporation,  or of any obligation of the surviving  corporation arising
from the merger,  including any suit or other proceeding to enforce the right of
any  stockholders  in  any  appraisal  proceedings.  The  surviving  corporation
irrevocably appoints the Secretary of State of California as its agent to accept
service of process  and to send it to:

9255 West Sunset Blvd. Suite 805, Los Angeles, California 90069

10.   Copies  of  the  Articles  of  Merger  and  the  Plan  and   Agreement  of
Reorganization  and  Plan of  Merger  effectuated  in  accordance  with  Section
368(a)1(B)  of the Internal  Revenue Code are both  available and on file at the
offices of the surviving corporation.  Copies will be furnished by the surviving
corporation, without cost, to any stockholder of a constituent corporation, upon
request.

IN WITNESS WHEREOF, the constituent corporations have executed these Articles of
Merger. this 23rd day of October 2002.

                      PROHEALTH MEDICAL TECHNOLOGIES, INC.
                                    (Nevada)

                                              /s/ Glenn Little
 ATTEST                                       -----------------------
                                              Glenn Little, President
/s/
-----------------------
Secretary
APPLIED DNA SCIENCES, INC. (ADNAS, INC.)

 ATTEST                                      /s/ Lawrence Lee
                                             ----------------------
                                             Lawrence Lee, President
/s/
-----------------------
Secretary

State of Nevada Secretary of State
I hereby  certify that this is a true and compete copy of the document  filed as
in this office
November 5, 2002
Dean Heller
By:  Illegible