01651nas a2200217   4500008004100000022001400041245011700055210006900172260007100241300001400312490000700326520083500333100002001168700002001188700002101208700002301229700001501252700001901267700001901286856012801305       2005                        eng d  a0897-475600aPorous gold nanospheres by controlled transmetalation reaction: a novel material for application in cell imaging0 aPorous gold nanospheres by controlled transmetalation reaction a  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcOCT  a5000-50050 v173 a<p>Hollow shell nanostructures have numerous potential applications due to their interesting optical and electronic properties, which can be tuned by varying their shape, size, and shell thickness. In this paper we describe a simple galvanic replacement reaction (transmetalation reaction) involving sacrificial silver nanoparticles and Au(III) ions using a dialysis membrane. The dialysis membrane acts as a partial barrier that provides excellent control over the kinetics of reaction. This process results in the formation of porous gold nanospheres that improve the fluorescence in cell staining by offering an enhanced surface area for binding of the fluorescent dye, propidium iodide (PI). Such porous nanostructures could be ideal candidates for applications such as catalysis, enzyme immobilization, and drug delivery.</p>1 aShukla, Sourabh1 aPriscilla, Anie1 aBanerjee, Meenal1 aBhonde, Ramesh, R.1 aGhatak, J.1 aSatyam, P., V.1 aSastry, Murali  uhttps://library.ncl.res.in/content/porous-gold-nanospheres-controlled-transmetalation-reaction-novel-material-application-0