Gold Nanoparticles Aggregation: Drastic Effect of Cooperative Functionalities in a Single Molecular Conjugate

2012 ◽  
Vol 116 (4) ◽  
pp. 2683-2690 ◽  
Author(s):  
Volodymyr Chegel ◽  
Oleksandre Rachkov ◽  
Andrii Lopatynskyi ◽  
Shinsuke Ishihara ◽  
Igor Yanchuk ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Drastic Effect ◽  
Molecular Conjugate

Bacterial Enzyme Mediated Biosynthesis of Gold Nanoparticles

2007 ◽  
Vol 7 (12) ◽  
pp. 4369-4377 ◽  
Author(s):  
Atul Bharde ◽  
Aarohi Kulkarni ◽  
Mala Rao ◽  
Asmita Prabhune ◽  
Murali Sastry
Keyword(s):  
Gold Nanoparticles ◽  
Shape Control ◽  
Incubation Temperature ◽  
Synthesis Methods ◽  
Chemical Methods ◽  
Experimental Conditions ◽  
Protease Enzyme ◽  
Bacterial Enzyme ◽  
Drastic Effect ◽  
Anisotropic Metal

Development of synthesis methods for anisotropic metal nanoparticles is of considerable interest due to their remarkable optoelectronic properties. Various shapes ranging from rods to cubes to tetrapods and prisms may be obtained by chemical methods. Here we show that anisotropic gold nanoparticles can be synthesized biologically by the bacterium Actinobacter spp. when challenged with gold chloride in the presence of Bovine serum albumin (BSA). We also observed that synthesis of gold nanoparticles occur with simultaneous induction of the protease enzyme secreted by the bacterium in the presence of BSA. The presence of BSA helps to enhance the rate of gold nanoparticles biosynthesis and may also impart some shape control. Controlling simple experimental conditions like incubation temperature and presence or absence of oxygen have drastic effect on the reaction rate and the morphology of the particles. Various assay experiments show that the presence of enzyme protease can act as a reducing as well as shape directing agent.

EpCam-specific Gold Nanoparticles for Detection, Live-imaging and Rapid Enrichment of Adult Human Liver Progenitor Cells

2013 ◽  
Vol 51 (01) ◽  
Author(s):  
N Fekete-Drimusz ◽  
J de la Roche ◽  
F Vondran ◽  
CL Sajti ◽  
MP Manns ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Progenitor Cells ◽  
Human Liver ◽  
Live Imaging ◽  
Adult Human

Structure and Spectral Properties of New Composites Based on Metal Alkanoates with Gold Nanoparticles

2015 ◽  
Vol 60 (04) ◽  
pp. 356-361 ◽  
Author(s):  
A. Tolochko ◽  
◽  
P. Teselko ◽  
A. Lyashchova ◽  
D. Fedorenko ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Spectral Properties

Fabrication and Characterization of Chain-like Arrangement of Gold Nanoparticles using Nanotemplates

2015 ◽  
Vol 135 (11) ◽  
pp. 474-475
Author(s):  
Koji Sugano ◽  
Ryoji Hiraoka ◽  
Toshiyuki Tsuchiya ◽  
Osamu Tabata
Keyword(s):  
Gold Nanoparticles ◽  
Fabrication And Characterization
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