نتایج جستجو برای: meso porous

تعداد نتایج: 56589  

2015
Long Ren K. N. Hui K. S. Hui Yundan Liu Xiang Qi Jianxin Zhong Yi Du Jianping Yang

New and novel 3D hierarchical porous graphene aerogels (HPGA) with uniform and tunable meso-pores (e.g., 21 and 53 nm) on graphene nanosheets (GNS) were prepared by a hydrothermal self-assembly process and an in-situ carbothermal reaction. The size and distribution of the meso-pores on the individual GNS were uniform and could be tuned by controlling the sizes of the Co3O4 NPs used in the hydro...

Journal: :Journal of Biomaterials and Nanobiotechnology 2015

2018
Libo Zhou Ying Jing Yubin Liu Zhihe Liu Duyang Gao Haobin Chen Weiye Song Tao Wang Xiaofeng Fang Weiping Qin Zhen Yuan Sheng Dai Zhen-An Qiao Changfeng Wu

Optical nanomaterials with intense absorption in near-infrared (NIR) region hold great promise for biomedical applications such as photothermal therapy (PTT) and photoacoustic imaging (PAI). In this work, we report mesoporous carbon nanospheres (Meso-CNs) with broadband and intense absorption in the UV-Vis-NIR region (300-1400 nm) and explore their potential as a multifunctional platform for ph...

Journal: :Dalton transactions 2017
Gen Liu Yan Xu Yide Han Junbiao Wu Junli Xu Hao Meng Xia Zhang

A hierarchical zeolitic imidazolate framework-8 (micro/meso-ZIF-8) was fabricated by using cetyltrimethylammonium bromide as a structure-controlling agent and l-histidine as co-templates. Compared to the conventional microporous ZIF-8 (micro-ZIF-8), the hierarchical porous structure of micro/meso-ZIF-8 contains micropores and maximum mesopores of around 35.6 nm. The as-prepared hierarchical mic...

2013
Yu Ren Zhen Ma Russell E. Morris Zheng Liu Feng Jiao Sheng Dai Peter G. Bruce

Porous solids have an important role in addressing some of the major energy-related problems facing society. Here we describe a porous solid, α-MnO2, with a hierarchical tetramodal pore size distribution spanning the micro-, meso- and macro pore range, centred at 0.48, 4.0, 18 and 70  nm. The hierarchical tetramodal structure is generated by the presence of potassium ions in the precursor solut...

2016
Olaf Klepel Nina Danneberg Matti Dräger Marcel Erlitz Michael Taubert

The preparation of porous carbon monoliths with a defined shape via template-assisted routes is reported. Monoliths made from porous concrete and zeolite were each used as the template. The porous concrete-derived carbon monoliths exhibited high gravimetric specific surface areas up to 2000 m²·g-1. The pore system comprised macro-, meso-, and micropores. These pores were hierarchically arranged...

Journal: :The Journal of organic chemistry 2007
Christopher Richardson Christopher A Reed

The synthesis of five new meso-tetraarylporphyrins having pyridine, pyrimidine, or nitrile groups extending tetragonally via alkynyl linkages from the para positions is described. The radial extension is nearly double that of common porphyrins such as tetra-p-pyridylporphyrin. Practical quantities can be produced by Pd-coupling protocols when traditional methods fail. Applications of these exte...

Journal: :Boletín de la Sociedad Española de Cerámica y Vidrio 2020

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Dianfan Li Martin Caffrey

The lipidic cubic mesophase has been used to crystallize important membrane proteins for high-resolution structure determination. To date, however, no integral membrane enzymes have yielded to this method, the in meso. For a crystal structure to be meaningful the target protein must be functional. Using the in meso method with a membrane enzyme requires that the protein is active in the mesopha...

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