PROMISSORY NOTE


Principal    Loan     Maturity  Loan No   Call/Coll  Account Officer Initials
             Date
$449,345.58  01-05-06 01-05-16 20001325834  1E/002     NEW     ***

References in the area above are for Lender's use only and do
not limit the applicability of this document to any particular
loan or item.  Any item above containing "***" has been omitted
due to test length limitations.

Borrower:  Dynasil Corporation of
           America a/k/a Dynasil           Lender: Susquehanna Patriot Bank
           Corporation of America
           a New Jersey Corporation                Marlton

           385 Cooper Road                         8000 Sagemore Drive
           West Berlin, NJ 08091                   Marlton, NJ 08053

Principal Amount: $449,345.58             Date of Note:   January 5, 2006

PROMISE  TO  PAY.  Dynasil Corporation of America  a/k/a  Dynasil
Corporation  of  America  a  New Jersey Corporation  ("Borrower")
promises to pay to Susquehanna Patriot Bank ("Lender"), or order,
in  lawful  money of the United States of America, the  principal
amount  of Four Hundred Forty-nine Thousand Three Hundred  Forty-
Five  &  58/100 Dollars ($449,345.58), together with interest  on
the unpaid principal balance from January 5, 2006, until paid  in
full together with all applicable fees and expenses.

PAYMENT. Subject to any payment changes resulting from changes in
the  Index,  Borrower will pay this loan in accordance  with  the
following payment schedule:  60 monthly consecutive principal and
interest  payments  in  the  initial amount  of  $3,579.75  each,
beginning  February  5,  2006, with interest  calculated  on  the
unpaid  principal  balances at an interest  rate  of  7.250%  per
annum; 59 monthly consecutive principal and interest payments  in
the initial amount of $3,630.72 each, beginning February 5, 2011,
with  interest calculated on the unpaid principal balances at  an
interest rate based on the weekly average yield on United  States
Treasury  Securities adjusted to a constant maturity of five  (5)
years,  effective  the first business day following  the  release
date,  as  made available by the Federal Reserve Board (currently
4.330%),  plus a margin of 3.000 percentage points, resulting  in
an  initial  interest  rate  of 7.330%;  and  one  principal  and
interest payment of $305,180.97 on January 5, 2016, with interest
calculated  on the unpaid principal balances at an interest  rate
based  on  the  weekly  average yield on United  States  Treasury
Securities  adjusted to a constant maturity of  five  (5)  years,
effective the first business day following the release  date,  as
made  available by the Federal Reserve Board (currently  4.330%),
plus a margin of 3.000 percentage points, resulting in an initial
interest rate of 7.330%. This estimated final payment is based on
the  assumption  that  all  payments  will  be  made  exactly  as
scheduled  and that the Index does not change; the  actual  final
payment  will be for all principal and accrued interest  not  yet
paid,  together  with any other unpaid amounts under  this  Note.
Unless  otherwise agreed or required by applicable law,  payments
will  be  applied first to any accrued unpaid interest;  then  to
principal; then to any unpaid collection costs; and then  to  any
late  charges. The annual interest rate for this Note is computed
on  a 365/360 basis; that is, by applying the ratio of the annual
interest  rate  over  a  year  of 360  days,  multiplied  by  the
outstanding principal balance, multiplied by the actual number of
days  the  principal balance is outstanding.  Borrower  will  pay
Lender at Lender's address shown above or at such other place  as
Lender may designate in writing.

VARIABLE INTEREST RATE. The interest rate on this Note is subject
to  change  from time to time based on changes in an  independent
index which is the weekly average yield on United States Treasury
Securities  adjusted to a constant maturity of  five  (5)  years,
effective the first business day following the release  date,  as
made  available by the Federal Reserve Board (the  "Index").  The
Index is not necessarily the lowest rate charged by Lender on its
loans.  If the Index becomes unavailable during the term of  this
loan,  Lender  may designate a substitute index after  notice  to
Borrower.  Lender will tell Borrower the current Index rate  upon
Borrower's request. The interest rate change will not occur  more
often  than each 60 months. Borrower understands that Lender  may
make loans based on other rates as well.  The Index currently  is
4.330%  per  annum.  The interest rate or rates to be applied  to
the  unpaid  principal balance of this Note will be the  rate  or
rates set forth herein in the "Payment" section.  Notwithstanding
any other provision of this Note, after the first payment stream,
the  interest  rate for each subsequent payment  stream  will  be
effective as of the last payment date of the just-ending  payment
stream.   NOTICE:  Under no circumstances will the interest  rate
on  this Note be more than the maximum rate allowed by applicable
law.   Whenever increases occur in the interest rate, Lender,  at
its  option,  may do one or more of the following:  (A)  increase
Borrower's payments to ensure Borrower's loan will pay off by its
original  final maturity date, (B)  increase Borrower's  payments
to  cover  accruing  interest,    (C)   increase  the  number  of
Borrower's  payments, and   (D)  continue Borrower's payments  at
the same amount and increase Borrower's final payment. '

PREPAYMENT;  MINIMUM INTEREST CHARGE.   In any event,  even  upon
full prepayment of this Note, Borrower understands that Lender is
entitled  to  a  minimum interest charge of $25.00.   Other  than
Borrower's  obligation  to  pay  any  minimum  interest   charge,
Borrower  may pay without penalty all or a portion of the  amount
owed earlier

                         PROMISSORY NOTE
Loan No   20001325834                      (Continued)Page 2


than  it is due.   Early, payments will not, unless agreed to  by
Lender  in writing, relieve Borrower of Borrower's obligation  to
continue  to  make  payments under the payment schedule.  Rather,
early  payments  will reduce the principal balance  due  and  may
result  in Borrower's making fewer payments. Borrower agrees  not
to   send   Lender  payments  marked  "paid  in  full",  "without
recourse", or similar language. If Borrower sends such a payment,
Lender may accept it without losing any of Lender's rights  under
this  Note, and Borrower will remain obligated to pay any further
amount  owed  to  Lender.  All written communications  concerning
disputed amounts, including any check or other payment instrument
that indicates that the payment constitutes "payment in full"  of
the  amount  owed  or that is tendered with other  conditions  or
limitations or as full satisfaction of a disputed amount must  be
mailed  or  delivered  to: Susquehanna  Patriot  Bank,  c/o  Loan
Operations, P.O. Box 2000 Lititz, PA  17543-7030.

LATE CHARGE. If a payment is 10 days or more late, Borrower will
be charged 10.000% of the regularly scheduled payment or $20.00,
whichever is greater.  This late charge shall be paid to Lender
by Borrower for the purpose of defraying the expense incident to
the handling of the delinquent payment.

INTEREST  AFTER DEFAULT, Upon default, including failure  to  pay
upon  final  maturity, Lender, at its option, may,  if  permitted
under applicable law, increase the variable interest rate on this
Note  by  4.000  percentage points. The interest  rate  will  not
exceed the maximum rate permitted by applicable law

DEFAULT. Each of the following shall constitute an event of
default ("Event of Default") under this Note:
   Payment Default. Borrower fails to make any payment when due
   under this Note.

   Other  Defaults. Borrower fails to comply with or  to  perform
any  other  term, obligation, covenant or condition contained  in
this Note or in any of the related documents or to comply with or
to  perform any term, obligation, covenant or condition contained
in any other agreement between Lender and Borrower.

   Default  in  Favor of Third Parties. Borrower or  any  Grantor
defaults under any loan, extension of credit, security agreement,
purchase or sales agreement, or any other agreement, in favor  of
any  other creditor or person that may materially affect  any  of
Borrower's property or Borrower's ability to repay this  Note  or
perform  Borrower's obligations under this Note  or  any  of  the
related documents.

   False  Statements. Any warranty, representation  or  statement
made  or furnished to Lender by Borrower or on Borrower's  behalf
under  this  Note or the related documents is false or misleading
in  any  material  respect, either now or at  the  time  made  or
furnished or becomes false or misleading at any time thereafter.

   Insolvency.  The  dissolution  or  termination  of  Borrower's
existence  as  a going business, the insolvency of Borrower,  the
appointment  of  a receiver for any part of Borrower's  property,
any assignment for the benefit of creditors, any type of creditor
workout,  or  the  commencement  of  any  proceeding  under   any
bankruptcy or insolvency laws by or against Borrower.

   Creditor   or   Forfeiture   Proceedings.   Commencement    of
foreclosure  or  forfeiture  proceedings,  whether  by   judicial
proceeding, self-help, repossession or any other method,  by  any
creditor  of  Borrower or by any governmental agency against  any
collateral securing the loan. This includes a garnishment of  any
of  Borrower's accounts, including deposit accounts, with Lender.
However, this Event of Default shall not apply if there is a good
faith dispute by Borrower as to the validity or reasonableness of
the  claim  which  is  the  basis of the creditor  or  forfeiture
proceeding  and if Borrower gives Lender written  notice  of  the
creditor or forfeiture proceeding and deposits with Lender monies
or a surety bond for the creditor or forfeiture proceeding, in an
amount determined by Lender, in its sole discretion, as being  an
adequate reserve or bond for the dispute.

   Events Affecting Guarantor. Any of the preceding events occurs
with respect to any guarantor, endorser, surety, or accommodation
party  of  any  of  the indebtedness or any guarantor,  endorser,
surety,  or  accommodation party dies or becomes incompetent,  or
revokes  or  disputes  the validity of, or liability  under,  any
guaranty of the indebtedness evidenced by this Note. In the event
of a death, Lender, at its option, may, but shall not be required
to,  permit the guarantor's estate to assume unconditionally  the
obligations  arising under the guaranty in a manner  satisfactory
to Lender, and, in doing so, cure any Event of Default.

   Change In Ownership. Any change in ownership of twenty-five
percent (25%) or more of the common stock of Borrower.

   Adverse Change. A material adverse change occurs in Borrower's
financial condition, or Lender believes the prospect of payment
or performance of this Note is impaired.

   Insecurity. Lender in good faith believes itself insecure.

    Cure  Provisions. If any - default, other than a  default  in
payment is curable and if Borrower has not been given a notice of
a  breach of the same provision of this Note within the preceding
twelve  (12) months, it may be cured if Borrower, after receiving
written  notice from Lender demanding cure of such  default:  (1)
cures  the default within fifteen (15) days; or (2) if  the  cure
requires more than fifteen (15) days, immediately initiates steps
which  Lender deems in Lender's sole discretion to be  sufficient
to  cure  the default and thereafter continues and completes  all
reasonable  and necessary steps sufficient to produce  compliance
as soon as reasonably practical.

LENDER'S RIGHTS. Upon default, Lender may declare the entire
unpaid principal balance on this Note and all accrued unpaid
interest immediately due, and then Borrower will pay that amount.


                         PROMISSORY NOTE
Loan No   20001325834                      (Continued)Page 3


ATTORNEYS' FEES; EXPENSES. Lender may hire or pay someone else to
help  collect  this Note if Borrower does not pay. Borrower  will
pay  Lender  that amount. This includes, subject  to  any  limits
under applicable law, Lender's attorneys' fees and Lender's legal
expenses, whether or not there is a lawsuit, including attorneys'
fees,  expenses for bankruptcy proceedings (including efforts  to
modify  or vacate any automatic stay or injunction), and appeals.
If  not prohibited by applicable law, Borrower also will pay  any
court costs, in addition to all other sums provided by law.

GOVERNING LAW. This Note will be governed by federal law and, to
the extent not preempted by federal law, the laws of the State of
New Jersey without regard to its conflicts of law provisions.
This Note ahs been accepted by Lender in the State of New Jersey.

CHOICE OF VENUE.  If there is a lawsuit, Borrower agrees upon
Lender's request to submit to the jurisdiction of the courts of
Burlington County, State of New Jersey.

RIGHT OF SETOFF. To the extent permitted by applicable law,
Lender reserves a right of setoff in all Borrower's accounts with
Lender (whether checking, savings, or some other account). This
includes all accounts Borrower holds jointly with someone else
and all accounts Borrower may
open  in  the future. However, this does not include any  IRA  or
Keogh  accounts, or any trust accounts for which setoff would  be
prohibited  by  law. Borrower authorizes Lender,  to  the  extent
permitted  by applicable law, to charge or setoff all sums  owing
on  the  indebtedness against any and all such accounts, and,  at
Lender's option, to administratively freeze all such accounts  to
allow  Lender  to  protect  Lender's  charge  and  setoff  rights
provided in this paragraph.



COLLATERAL. Borrower acknowledges this Note is secured by the
following collateral described in the security instruments listed
herein:
     (A)  a Mortgage dated January 5, 2006, to Lender on real
property located in Camden County, State of New Jersey
     (B)  an Assignment of Leases and Rents to Lender on real
property located in Camden County, State of New Jersey.
     (C)  collateral described in a Commercial Security Agreement
dated January 5, 2006.

SUCCESSOR INTERESTS. The terms of this Note shall be binding upon
Borrower, and upon Borrower's heirs, personal representatives,
successors and assigns, and shall inure to the benefit of Lender
and its successors and assigns.

GENERAL  PROVISIONS. Lender may delay or forgo enforcing  any  of
its  rights  or  remedies under this Note  without  losing  them.
Borrower  and any other person who signs, guarantees or  endorses
this  Note,  to  the  extent allowed by law,  waive  presentment,
demand  for payment, and notice of dishonor. Upon any  change  in
the terms of this Note, and unless otherwise expressly stated  in
writing,  no  party  who  signs  this  Note,  whether  as  maker,
guarantor,  accommodation maker or endorser,  shall  be  released
from  liability. All such parties agree that Lender may renew  or
extend  (repeatedly  and for any length of  time)  this  loan  or
release any party or guarantor or collateral; or impair, fail  to
realize  upon  or  perfect  Lender's  security  interest  in  the
collateral; and take any other action deemed necessary by  Lender
without the consent of or notice to anyone. All such parties also
agree that Lender may modify this loan without the consent of  or
notice  to anyone other than the party with whom the modification
is made. The obligations under this Note are joint and several.

PRIOR TO SIGNING THIS NOTE, BORROWER READ AND UNDERSTOOD ALL THE
PROVISIONS OF THIS NOTE, INCLUDING THE VARIABLE INTEREST RATE
PROVISIONS. BORROWER AGREES TO THE TERMS OF THE NOTE.
BORROWER ACKNOWLEDGES RECEIPT OF A COMPLETED COPY OF THIS
PROMISSORY NOTE.
BORROWER:


DYNASIL CORPORATION OF AMERICA. A/K/A DYNASIL CORPORATION OF
AMERICA A NEW JERSEY CORPORATION


/s/ Craig T. Dunham               /s/ Patricia Johnson

Craig T. Dunham, President of    Patricia Johnson, Secretary of
Dynasil Corporation              Dynasil Corporation
of America. a/k/a/  Dynasil      Of America. a/k/a/ Dynasil
Corporation of America a         Corporation of America a
New Jersey Corporation           New Jersey Corporation