OCR Text |
Show a Fabrication and Characterization of Irregularly-Shaped Gold Nanopartides for use as Biosensors i mil 1 11 11 ¦ ¦ j i .¦ iliini iiJlriL^nljrlhnhli ijh il Gtld '^MiDiinrlklcsfi'i u** Uht HrtlH nri J«nKff ¦Jinrtw l>-iui iiiihii ¦ J r Mike Hukill and Jennifer 5humak*r-Parry D apart m«nt of Chemistry Cresrent shaped gold nanopartirles have Iwen prcd urpd nsj ng a , n-»et?l PI rn depc^mon. nnd "txi The fcibroHon pioce^ provide? control oF the par 1V te1 physVal properi"*? such w thickneH.diarneter. andsfviF^. The l is 1o control thephy?ic?l pror^rtienn order to tune the ere? s' opiVal proped^ For wn^r^and 5pectroK^pvapFJVr"itiCin5 prod">™d by firM r"rd»" binci p^lvmer beards onto a Next ri th in tioW layer ^25 to lW nnJ is departed onto ?n rinple A n-nllinq piLxew using r"ir^?n n?n? rernove? the y phrsollv knock" ng eff 1 h* gnid atom s, Dwe to the angk i. the pawnee cf the colled. ?ndihp nulling proofs, a metal article iiproduced including shapfl.toFCfli^ph Iffld uilng Atomic Fc*ce WicroKCpv ^AFMI- AFM produce? a topo g raphic im^je of a su rF?oe due to the inte* a^1 Vm? betv^em ? v^y ?hn i p 1 ip rind a surF^re. A laser bwn i L?ff ih? b^ksideoFthp AFW^HintilPvei tip nnd ?ithe^antilev^ n>?v^HicroH thesurFace, t?d to change? In 1 he Force between the surface ?r>d cantilever ti rA en u?inp the cantilever to deflect. leK*5 tochanaenn thereiTectionofthelwei rnea^urpo! by a po^rtion senuUve detector. The mo^ment oF the tip ar>d deflectran oF the Lawr provider ¦ nform?tH5n?uch thnt ?n irnncjeoFthewrnpl^itoFoarDphycanbepiodui"^ ^^iPHinn^EWJusin^al^^^ NIR ^pffl^rophstorneier to c haractense the 1 plannon reronance?.Thewlocalized pJairnon ra»nar>re?are unique to partic^s with dirnen^ionssmaller 1 han the wavelength of light, due to theconnnerneni oftheo^illatmg electrons v^ttrini 1 he small particle The eras c?nt shaped p^itrle* nrp temg d^vekiped w sensors by ¦ rnmoblliEirq receptor rnolec u Igs on ar>dmonrtoringi"h?ngesmthpplwn>?n ip»nar>res due to binding of molecule? to the receptors. 1/ |