Gold nanoparticles biomedical applications

Generally, gold nanoparticles have been used for most biomedical applications. Gold nanoparticles with varying core sizes are usually prepared by the reduction of... 

Silver nanoparticles have also been prepared in aqueous solution using Capsicum annum L. extract. It is thought in this example that Ag(i) is reduced to Ag(0) by proteins within the natural extract and that these proteins also act to stabilize the particles. The size of the nanoparticles was found to increase with reaction time 5 h, 10 2 nm 9 h, 25 3 nm 13 h, 40 5 nm. It should be noted that gold and silver nanoparticles have potential pharmaceutical and biomedical applications, and it is therefore highly desirable to use natural stabilizing agents (starch, glucose or plant extracts) and biocompatible solvents such as water. 

Biomedical Applications of Gold Nanoparticles. Edited by Chris D. Geddes. 

Castaneda, M. T., Merkofi, A., Pumera, M., and Alegret, S., (2007) Electrochemical genosensors for biomedical applications based on gold nanoparticles. Biosens. Bio-electron., 22, 1961-1967... 

Also aiming at biomedical applications are nanoscaled hydrogels, prepared in inverse miniemulsion. In crosslinked poly(oligo(ethylene glycol) monomethyl ether methacrylate) (POEOMA) nanogels hydrophilic dyes as the polymeric dye (rhodamine isothiocyanate (RITC) dextran) [41], rhodamine in combination with the drug doxorubicin [42] or gold nanoparticles with bovine serum albumin [43] could be encapsulated. 

This review approaches the preparation of gold and silver nanoparticles by employing green synthesis techniques instead of chemical and physical methods. This smdy will provide valuable information for the preparation and characterization of silver and gold nanoparticles and its present and future prospects and prospective constraints of techniques in industry. In addition, we have particularly emphasized the role of silver and gold nanoparticles with other materials and their biomedical applications. 

Dykmana, L., Khlebtsov, N., 2012. Gold nanoparticles in biomedical applications recent advances and perspectives. Chem. Soc. Rev. 41, 2256—2282. 

Figure 2, extracted from ISl Web of Knowledge, shows the publications related to gold, silver, iron and magnetic nanoparticles for biomedical application. Magnetic nanoparticles... 

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