The implication of adsorption preferences of ions and surfactants on shape control of gold nanoparticles: a microscopic, atomistic perspective

Nanoscale ◽  
2021 ◽  
Author(s):  
Santosh Kumar Meena ◽  
Chandrakala Meena
Keyword(s):  
Gold Nanoparticles ◽  
Shape Control ◽  
Growth Solution ◽  
Shape Modulation

Shape modulation of nanoparticles is crucial for their tailored applications, however, it depends on surfactants, ions, reactants, and other additives present in the growth solution. Here we dissect the role...

scholarly journals Surfactant-Free Shape Control of Gold Nanoparticles Enabled by Unified Theoretical Framework of Nanocrystal Synthesis

2017 ◽  
Vol 29 (21) ◽  
pp. 1605622 ◽  
Author(s):  
Matthew A. Wall ◽  
Stefan Harmsen ◽  
Soumik Pal ◽  
Lihua Zhang ◽  
Gianluca Arianna ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Shape Control ◽  
Theoretical Framework ◽  
Nanocrystal Synthesis

scholarly journals Fitting a Square Peg into a Round Hole: Shape Control in Phase Transfer of Cubic Gold Nanoparticles

ChemNanoMat ◽  
2021 ◽  
Author(s):  
Imke Maack ◽  
Milena Osmić ◽  
Lars Mohrhusen ◽  
Pascal Buhani ◽  
Katharina Al-Shamery
Keyword(s):  
Gold Nanoparticles ◽  
Shape Control ◽  
Phase Transfer ◽  
Round Hole ◽  
Hole Shape

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.

Simple Reductant Concentration-Dependent Shape Control of Polyhedral Gold Nanoparticles and Their Plasmonic Properties

Langmuir ◽  
2012 ◽  
Vol 28 (24) ◽  
pp. 9021-9026 ◽  
Author(s):  
Miharu Eguchi ◽  
Daisuke Mitsui ◽  
Hsin-Lun Wu ◽  
Ryota Sato ◽  
Toshiharu Teranishi
Keyword(s):  
Gold Nanoparticles ◽  
Shape Control

Shape Control of Gold Nanoparticles by Silver Underpotential Deposition

Nano Letters ◽  
2011 ◽  
Vol 11 (8) ◽  
pp. 3394-3398 ◽  
Author(s):  
Michelle L. Personick ◽  
Mark R. Langille ◽  
Jian Zhang ◽  
Chad A. Mirkin
Keyword(s):  
Gold Nanoparticles ◽  
Shape Control ◽  
Underpotential Deposition
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