@article { ISI:000232326700015,
	title = {Porous gold nanospheres by controlled transmetalation reaction: a novel material for application in cell imaging},
	journal = {Chemistry of Materials},
	volume = {17},
	number = {20},
	year = {2005},
	month = {OCT},
	pages = {5000-5005},
	publisher = {AMER CHEMICAL SOC},
	type = {Article},
	address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},
	abstract = {<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>},
	issn = {0897-4756},
	doi = {10.1021/cm051165f},
	author = {Shukla, Sourabh and Priscilla, Anie and Banerjee, Meenal and Bhonde, Ramesh R. and Ghatak, J. and Satyam, P. V. and Sastry, Murali}
}
