<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS INCLUDED IN THE REGISTRANT'S QUARTERLY REPORT ON FORM 10-Q
FOR THE SIX MONTHS ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 3,890,987
<SECURITIES> 0
<RECEIVABLES> 496,321
<ALLOWANCES> 0
<INVENTORY> 16,203
<CURRENT-ASSETS> 4,403,511
<PP&E> 6,690,319
<DEPRECIATION> 5,878,182
<TOTAL-ASSETS> 6,349,903
<CURRENT-LIABILITIES> 1,031,650
<BONDS> 0
0
22,812,507
<COMMON> 70,349
<OTHER-SE> 60,962,820
<TOTAL-LIABILITY-AND-EQUITY> 6,349,903
<SALES> 0
<TOTAL-REVENUES> 483,604
<CGS> 0
<TOTAL-COSTS> 0
<OTHER-EXPENSES> 3,000,792
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (2,517,188)
<INCOME-TAX> 0
<INCOME-CONTINUING> (2,517,188)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (2,517,188)
<EPS-BASIC> (0.55)
<EPS-DILUTED> (0.55)
</TABLE>