نتایج جستجو برای: platinum nanoparticles

تعداد نتایج: 127093  

2015
K. Saminathan

The use of nanoparticles is important, as several pathogenic microorganisms have developed resistance against various antibiotics. Since noble metal nanoparticles such as gold, silver and platinum nanoparticles are widly applied to human contacting areas, there is a growing need to develop environmentally friendly processes of nanoparticles synthesis using microorganism and plant extracts (Kath...

Journal: :Science 2015
Jungwon Park Hans Elmlund Peter Ercius Jong Min Yuk David T Limmer Qian Chen Kwanpyo Kim Sang Hoon Han David A Weitz A Zettl A Paul Alivisatos

Knowledge about the synthesis, growth mechanisms, and physical properties of colloidal nanoparticles has been limited by technical impediments. We introduce a method for determining three-dimensional (3D) structures of individual nanoparticles in solution. We combine a graphene liquid cell, high-resolution transmission electron microscopy, a direct electron detector, and an algorithm for single...

Journal: :Chemical communications 2010
Beena K Balan Vinayak S Kale Pradnya P Aher Manjusha V Shelke Vijayamohanan K Pillai Sreekumar Kurungot

A novel high aspect ratio material which can simultaneously display multiple functions such as proton and electron conductivity and electrocatalytic activity has been developed by incorporating both platinum nanoparticles and phosphoric acid doped polybenzimidazole along the inner and outer surfaces of a hollow carbon nanofiber.

Journal: :Chemical communications 2014
Massimiliano Arca Claudia Caltagirone Greta De Filippo Mauro Formica Vieri Fusi Luca Giorgi Vito Lippolis Luca Prodi Enrico Rampazzo Mariano Andrea Scorciapino Massimo Sgarzi Nelsi Zaccheroni

The fluorescent ligand (L) based on the N2S2 pyridinophane macrocycle and the 7-nitrobenzo[1,2,5]oxadiazole (NBD) fluorogenic fragment has been synthesized to coordinate Pd(II) ions. Loaded on dye-doped silica nanoparticles, L can be used as a ratiometric fluorescent chemosensor for Pd(II) in water with high selectivity toward other metal ions including the platinum group ones.

Journal: :Chemical communications 2016
Xinyu Wang Changping Wang Qiang Zhang Yiyun Cheng

A near infrared (NIR) light-responsive supramolecular hydrogel consisting of α-cyclodextrin and poly(ethylene glycol)-modified dendrimer-encapsulated platinum nanoparticles was developed. Upon NIR irradiation, this hydrogel underwent a photothermo-sensitive degradation to release the entrapped therapeutic agents in an on-demand and dose-tunable fashion.

Journal: :Journal of Electroanalytical Chemistry 2017

Journal: :Organic & biomolecular chemistry 2015
Stefanie Papst Margaret A Brimble Clive W Evans Daniel J Verdon Vaughan Feisst P Rod Dunbar Richard D Tilley David E Williams

Herein, we report the facile preparation of cell-targeted platinum nanoparticles (PtNPs), through the design of peptides that, as a single molecule added in small concentration during the synthesis, control the size of PtNP clusters during their growth, stabilise the PtNPs in aqueous suspension and enable the functionalisation of the PtNPs with a versatile range of cell-targeting ligands. Water...

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