نتایج جستجو برای: mesoporous silica nanoparticles

تعداد نتایج: 144411  

Journal: :Chemical communications 2010
Zhe Chen Zhi-Min Cui Fang Niu Lei Jiang Wei-Guo Song

A true nanoreactor composed of mesoporous silica hollow spheres and Pd nanoparticles residing inside the spheres shows superior activity in Suzuki coupling reactions with 99.5% yield in 3 min.

Journal: :Chemical communications 2013
Giuliana Martelli Harshal R Zope Mireia Bròvia Capell Alexander Kros

Coiled-coil peptide motifs were used as thermo-responsive valves for mesoporous silica nanoparticles (MSNs). The controlled release of a model drug as a function of temperature was demonstrated.

Journal: :Chemical communications 2010
Juying Lei Lingzhi Wang Jinlong Zhang

Incorporation of a dual-FRET dye pair into mesoporous silica nanoparticles yields sensitive and sensing-range tunable nanosensors with good reversibility that can be used for ratiometric pH measurements under a single-wavelength excitation.

Journal: :Chemical communications 2015
Xiaomeng Wang Meirong Cui Hong Zhou Shusheng Zhang

Mesoporous silica nanoparticles (MSNs) were used as a nano-carrier/amplifier to develop a novel MSN-SERS probe for DNA MTase detection. High sensitivity, good selectivity, and rapid analysis are achieved.

Journal: :Nanoscale 2013
Bing Yu Xuesong Jiang Jie Yin

We here demonstrated a novel square silica/titania mesoporous nanosheet which was prepared with hyperbranched poly(ether amine) nanosheets (hPEA-NSs) as a template. TEM and SEM images reveal that the obtained nanosheets possess a large aspect ratio with the average edge length of 1-2 μm and thickness of ~40 nm, respectively. Various metal nanoparticles such as gold, silver, and platinum can be ...

Journal: :Chemical communications 2008
Chia-Min Yang Ching-Yi Lin Yasuhiro Sakamoto Wei-Chia Huang Li-Ling Chang

Mesoporous silica nanoparticles with a two-dimensional center-rectangular (plane group c2mm) lattice and coiled elliptical channels have been synthesized; the new synthetic route also allows simple control over the lattice dimensions and the elliptical shape of the channels.

Journal: :Chemical communications 2010
Jinping Lai Xue Mu Yunyan Xu Xiaoli Wu Chuanliu Wu Chong Li Jianbin Chen Yibing Zhao

Mesoporous silica nanoparticles grafted with light-responsive polymer on the outer surface were developed as novel nanogated ensembles, which allow encapsulation and release of drug and biological molecules under light irradiation.

An efficient photocatalyst consisting of CdS nanoparticle dispersed mesoporous silica-titania was prepared using amphiphilic triblock copolymer P123 as template and silica-titania sol–gel precursors. The CdS nanoparticle was incorporated into silica-titania mesoporous nanosturctures by post impregnation method. The synthesized catalyst has been characterized by FTIR, TEM, SEM, and EDAX analysis...

2014
Chengli Huo Jing Ouyang Huaming Yang

Highly ordered aluminum-containing mesoporous silica (Al-MCM-41) was prepared using attapulgite clay mineral as a Si and Al source. Mesoporous complexes embedded with CuO nanoparticles were subsequently prepared using various copper sources and different copper loadings in a direct synthetic route. The resulting CuO/Al-MCM-41 composite possessed p6mm hexagonally symmetry, well-developed mesopor...

In the present investigation surface modification of silica nanoparticles by alumina was carried out by sol-gel process. Fourier transform infrared (FTIR) and X-ray fluorescence (XRF) confirmed the synthesis of silica and the surface modification as alumina is anchored to silica surface. Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) investigation...

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