Physical characterization of a new composition of oxidized zirconium–2.5wt% niobium produced using a two step process for biomedical applications

2011 ◽  
Vol 257 (14) ◽  
pp. 6118-6124 ◽  
Author(s):  
V. Pawar ◽  
C. Weaver ◽  
S. Jani
Keyword(s):  
Biomedical Applications ◽  
Physical Characterization ◽  
Step Process ◽  
Oxidized Zirconium

scholarly journals Synthesis, Chemical–Physical Characterization, and Biomedical Applications of Functional Gold Nanoparticles: A Review

Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 5823
Author(s):  
Ileana Ielo ◽  
Giulia Rando ◽  
Fausta Giacobello ◽  
Silvia Sfameni ◽  
Angela Castellano ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Biomedical Applications ◽  
Polymer Coatings ◽  
Synthetic Methods ◽  
Physical Characterization ◽  
Self Assembled Monolayers ◽  
Structure Activity ◽  
Covalently Bonded ◽  
Assembled Monolayers

Relevant properties of gold nanoparticles, such as stability and biocompatibility, together with their peculiar optical and electronic behavior, make them excellent candidates for medical and biological applications. This review describes the different approaches to the synthesis, surface modification, and characterization of gold nanoparticles (AuNPs) related to increasing their stability and available features useful for employment as drug delivery systems or in hyperthermia and photothermal therapy. The synthetic methods reported span from the well-known Turkevich synthesis, reduction with NaBH4 with or without citrate, seeding growth, ascorbic acid-based, green synthesis, and Brust–Schiffrin methods. Furthermore, the nanosized functionalization of the AuNP surface brought about the formation of self-assembled monolayers through the employment of polymer coatings as capping agents covalently bonded to the nanoparticles. The most common chemical–physical characterization techniques to determine the size, shape and surface coverage of AuNPs are described underlining the structure–activity correlation in the frame of their applications in the biomedical and biotechnology sectors.

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