On the Overlooked Critical Role of the pH Value on the Kinetics of the 4-Nitrophenol NaBH4-Reduction Catalyzed by Noble-Metal Nanoparticles (Pt, Pd, and Au)

2020 ◽  
Vol 124 (5) ◽  
Author(s):  
Roland Grzeschik ◽  
Daniel Schäfer ◽  
Tim Holtum ◽  
Sebastian Küpper ◽  
Axel Hoffmann ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Ph Value ◽  
Critical Role ◽  
Noble Metal Nanoparticles ◽  
Kinetics Of ◽  
Nabh4 Reduction

Kinetics of Spontaneous Bimetallization between Silver and Noble Metal Nanoparticles

2018 ◽  
Vol 13 (15) ◽  
pp. 1892-1896 ◽  
Author(s):  
Kazutaka Hirakawa ◽  
Tetsuya Kaneko ◽  
Naoki Toshima
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Kinetics Of

Role of organic functionalities linked to alkoxysilane precursors in nanomaterials synthesis and their biomedical applications

2015 ◽  
Vol 1719 ◽  
Author(s):  
P. C. Pandey ◽  
Govind Pandey
Keyword(s):  
Salt Tolerance ◽  
Metal Ions ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Biomedical Applications ◽  
Ph Sensitivity ◽  
Noble Metal Nanoparticles ◽  
Biological Interactions ◽  
Wide Range

ABSTRACTThe synthesis of biocompatible noble metal nanoparticles dispersible in a wide range of biological media with control of polycrystalinity and nanogeometry, pH sensitivity and salt tolerance has been a challenging requirements. The role of 3-aminopropyltrimethoxysilane (3-APTMS) and organic reducing reagents for real time synthesis of amphilic noble metal nanoparticles meeting these requirements are demonstrated justifying the following; (1) 3-APTMS capped noble metal ions are converted into respective metal nanoparticles in the presence of one of organic reducing agents i.e., cyclohexanone, tetrahydrofuran hydroperoxide (THF-HPO), formaldehyde, acetaldehyde, acetone, t-buty dimethyl keotone, 3-Glycidoxy-propyltrimethoxysilane (3-GPTMS); (2) 3-APTMS acts as micelle, promotes the interaction of metal ions with organic reducing agent, precisely controls the size of metal nanoparticles, pH sensititvity and salt tolerance and also provides a suitable medium for nanoparticles suspension, (3) the use of suitable organic reagent precisely controls the polarity of as made noble metal nanoparticles allowing specific biological interactions, and (4) 3-APTMS significantly increases the stability and controls the pH sensitivity and salt tolerance of metal nanoparticles. The as synthesized nanomaterials show potential viability in biomedical applications from many angles i.e. (a) as potential bioelectrocatalyst, (b) selective interaction with active proteins and cellular components, and (c) peroxidase mimetic.

The Role of Polymers in the Synthesis of Noble Metal Nanoparticles: A Review

2017 ◽  
Vol 17 (1) ◽  
pp. 87-114 ◽  
Author(s):  
César Saldías∗ ◽  
Sebastián Bonardd ◽  
Caterina Quezada ◽  
Deodato Radi´c ◽  
Angel Leiva
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles

Strategic role of selected noble metal nanoparticles in medicine

2015 ◽  
pp. 1-24 ◽  
Author(s):  
Mahendra Rai ◽  
Avinash P. Ingle ◽  
Sonal Birla ◽  
Alka Yadav ◽  
Carolina Alves Dos Santos
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Strategic Role

scholarly journals Symmetry and Electronic Structure of Noble-Metal Nanoparticles and the Role of Relativity

2004 ◽  
Vol 93 (9) ◽  
Author(s):  
Hannu Häkkinen ◽  
Michael Moseler ◽  
Oleg Kostko ◽  
Nina Morgner ◽  
Margarita Astruc Hoffmann ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles
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