نتایج جستجو برای: porous nanoparticles

تعداد نتایج: 154446  

2017
Hongyan Zhang Zhenhong Jia

A new type of fluorescence "off-on" probe was designed for L-Cysteine (L-Cys) based on the fluorescence resonance energy transfer (FRET) between negatively charged amino-capped porous silicon nanoparticles (SiNPs) and positively charged citrate-stabilized Au nanoparticles (AuNPs). In this proposed FRET immunosensor, novel water-soluble amino-conjugated porous SiNPs in ethanol with excellent pho...

Journal: :Environmental science & technology 2013
Dianjun Ren James A Smith

The retention and transport of silver nanoparticles (Ag-NPs) through a ceramic porous medium used for point-of-use drinking water purification is investigated. Two general types of experiments were performed: (i) pulse injections of suspensions of Ag-NPs in aqueous MgSO4 solutions were applied to the ceramic medium, and effluent silver was quantified over time; (ii) Ag-NPs were applied directly...

Journal: :Chemical communications 2011
Chunwen Sun Shreyas Rajasekhara Yujin Chen John B Goodenough

A solvothermal method was developed to prepare on a large scale monodisperse porous β-Co(OH)(2) microspheres consisting of nanoplatelets. Co(3)O(4) microspheres with porous platelets were obtained via subsequent thermal decomposition. These Co(3)O(4) microspheres show much higher ethanol sensitivity and selectivity at a relatively low temperature (135 °C) compared with those of commercial Co(3)...

Journal: :Scientific reports 2016
Dong Chen Feng Ye Hui Liu Jun Yang

Precisely tailoring the structure and fully making use of the components of nanoparticles are effective to enhance their catalytic performance for a given reaction. We herein demonstrate the design of cage-bell structured Pt-Pd nanoparticles, where a Pd shell is deliberately selected to enhance the catalytic property and methanol tolerance of Pt for oxygen reduction reaction. This strategy star...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2006
Qingping Wu Danzhen Li Zhixin Chen Xianzhi Fu

TiO(2) nanoparticles were directly coupled with porous silicon and this novel composite material shows very strong photocatalytic activity for the degradation of Rhodamine B with high photochemical stability under visible light irradiation.

Journal: :Chemical communications 2014
Meicheng Wen Kohsuke Mori Takashi Kamegawa Hiromi Yamashita

The incorporation of Pt nanoparticles into a highly stable and porous amine-functionalized MIL-101(Cr) was performed for construction of a visible light driven H2 evolution system with high activity and strong stability.

Journal: :Chemical communications 2006
Feng Yan John Texter

Surfactants based on imidazolium ionic liquids (ILs), including polymerizable surfactant ILs, have been synthesized and used to stabilize polymerizable microemulsions useful for producing polymer nanoparticles, gels, and open-cell porous materials.

Journal: :Chemical communications 2010
Tapas Sen Ian James Bruce Tim Mercer

Novel hierarchically ordered porous magnetic nanocomposites with interconnecting macroporous windows and meso-microporous walls containing well dispersed magnetic nanoparticles have been fabricated and used as a support to immobilise lipase for the efficient hydrolysis of ester.

Journal: :Chemical communications 2014
Shenguang Ge Fang Liu Weiyan Liu Mei Yan Xianrang Song Jinghua Yu

A novel colorimetric assay was established based on folic acid-conjugated porous Pd@Au nanoparticles possessing peroxidase-like activity as labels for the rapid detection of human chronic myelogenous leukemia cell lines (K-562).

2012
Hanna Bandarenka Sergey Redko Aleksandr Smirnov Andrei Panarin Sergei Terekhov Paolo Nenzi Marco Balucani Vitaly Bondarenko

The application of porous silicon as a template for the fabrication of nanosized copper objects is reported. Three different types of nanostructures were formed by displacement deposition of copper on porous silicon from hydrofluoric acid-based solutions of copper sulphate: (1) copper nanoparticles, (2) quasi-continuous copper films, and (3) free porous copper membranes. Managing the parameters...

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