01616nas a2200193   4500008004100000022001400041245007500055210006900130260007100199300001400270490000700284520091900291100002001210700002001230700001501250700002001265700003001285856010701315       2005                        eng d  a0743-746300aGold nanoparticle networks with photoresponsive interparticle spacings0 aGold nanoparticle networks with photoresponsive interparticle sp  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAUG  a7979-79840 v213 a<p>Photoresponsive gold nanoparticle networks were prepared by functionalizing them with azobenzene derivatives. A network can be formed when a linker molecule constituting the azobenzene moiety suitably derivatized on either side with gold surface sensitive groups such as thiols and amines is added to the nanoparticle solution. It is shown that the interparticle spacing in the networks could be controlled by the reversible trans-cis isomerization of the azobenzene moiety induced by UV and visible light, respectively. The photoinduced variation in the interparticle spacings is inferred by the changes in the optical spectra of the gold nanoparticles which display a red or blue shift in the surface plasmon resonance peak depending on a decrease or increase in the interparticle spacing, respectively. Transmission electron microscopy images are in consonance with the evidence from the optical spectra.</p>1 aSidhaye, D., S.1 aKashyap, Sudhir1 aSastry, M.1 aHotha, Srinivas1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/gold-nanoparticle-networks-photoresponsive-interparticle-spacings-0