01237naa a2200265 a 450000100080000000500110000800800410001910000260006024500920008626000090017852004170018765000220060465300280062665300240065465300200067870000160069870000200071470000170073470000190075170000190077070000230078970000170081270000220082977301200085110247452008-05-08       2002    bl ---       0--  u    #d1 aCONSTANTINO, C. J. L.  aDetection limit for artifical sensors based on ultrathin films of perylene derivatives.  c2002  aWe report the use of ultrathin Langmuir-Blodgett (LB) films of a novel class of PTCDs as an "electronic tongue" sensor able to distinguish tastes  (salty, sweet, bitter and sour) at 1 uM, which is below the human threshold, likewise the detection of trace amounts of a pesticide. Distiction is also made between samples of ultrapure, distilled and tap water, in addition to two different brands of mineral water.  aelectronic tongue  aArtificla taste sensors  aLíngua eletrônica  aUltrathin films1 aRIUL JR. A.1 aVENANCIO, E. C.1 aCONSOLIN, N.1 aANTUNES, P. A.1 aFONSECA, F. J.1 aOLIVEIRA JR. O. N.1 aAROCA, R. F.1 aMATTOSO, L. H. C.  tIn: INTENATIONAL SYMPOSIUM ON OLFACTION AND ELECTRONIC NOISE, 9., 2002, Rome. ISOEN' 02: book of abstracts. p. 158.