Results 211 to 220 of about 11,162 (253)

Hollow silica microspheres as robust immobilization carriers

Bioorganic Chemistry, 2019
Hollow silica microspheres provide an ideal solid support for enzyme immobilization. We tested one of the newest development, namely MATSPHERES®, a silica openwork material as a carrier for the covalent immobilization of enzymes used to synthesize bioactive compounds.
Wojciech Snoch, Mateusz Tataruch, Olga Zastawny, Ewelina Cichoń, Mathilde Gosselin, Hubert Cabana, Maciej Guzik   +6 more
openaire   +2 more sources

Structure of hollow polystyrene microspheres: An SEM study

Journal of Microencapsulation, 1989
Hollow polystyrene microspheres have been prepared by a modified interfacial polymer deposition technique. The hollow microspheres were characterized using scanning electron microscopy. The effects of polymer concentration and the quantity of the internal phase material (methanol) used on the microsphere size and their wall thickness were studied ...
S, Ganguly, K V, Rao, V K, Mohan
openaire   +2 more sources

Interfacial synthesis of hollow microspheres of mesostructured silica

Chemical Communications, 2001
Hollow microspheres with ordered mesoporous walls are synthesised under ambient conditions by a simple procedure involving dilution and neutralisation of an aqueous tetraethoxysilane/cetyltrimethylammonium bromide reaction mixture.
Fowler, CE, Khushalani, D, Mann, S
openaire   +2 more sources

Hydrothermal synthesis of SnO2 hollow microspheres

Materials Letters, 2005
Abstract SnO 2 hollow microspheres have been synthesized by a hydrothermal method. X-ray powder diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM) were used to characterize such hollow microspheres. SEM image shows that SnO 2 microspheres with diameters of 0.5–1 μm are composed of SnO 2 nanoparticles with about 15 nm in ...
Fanglin Du, Zhiyan Guo, Guicun Li
openaire   +1 more source

Hollow Microspheres from Polyethylene Terephthalate

Fusion Technology, 1997
We discuss the technology developed at the Lebedev Physical Institute for the manufacture of hollow microspheres polyethylene terephthalate (PETP).
Valeriy M. Dorogotovtsev, Alexander A. Akunets, Yuriy A. Merkuliev   +2 more
openaire   +1 more source

Recent progress on the fabrication of hollow microspheres

Materials Science and Engineering: A, 2007
Hollow microspheres represent a special class of materials, on which intense interest has been paid in the fields of material science, medicine, chemistry and chromatography. Several methods, including templating method, emulsion processing, high temperature smelting and layer-by-layer self-assembly technique, have been used to produce this kind of ...
Ai-Juan Wang, Yu-Peng Lu, Rui-Xue Sun
openaire   +1 more source

From ZnO Hollow Microspheres to Radical Nanorod Arrays

Journal of Nanoscience and Nanotechnology, 2012
Nanstructured ZnO has exhibited attractive multifunction for various applications, however, the nanostructures are so sensitive to the fabrication conditions that it is not easy to control the produced morphology. In this paper, ZnO hollow microspheres and radical nanorod arrays were fabricated based on the controllable solution chemical reaction.
Xu, Chunxiang, Chen, Na, Wang, Mingliang, Wang, Libo, Hu, Xiao   +4 more
openaire   +4 more sources

Mesoporous Organosilica Hollow Microspheres with Hierarchical Structures on the Shell

Journal of Nanoscience and Nanotechnology, 2013
Hierarchical mesoporous organosilicas with hollow structures have been readily synthesized from one template approach by using Pluronic P123 as a surfactant and 1,2-bis(trimethoxysilyl)ethane as precursor in mild HAc-NaAc (pH = 4.4) buffer solution. The obtained hierarchical mesoporous organosilica hollow spheres with raspberry-like morphology have at ...
Zhang, Xiaoyan, Liu, Tingting, Sun, Weidong, Liu, Jian   +3 more
openaire   +4 more sources

Concrete with Addition of Hollow Glass Microspheres

Materials Science Forum, 2015
The addition of hollow glass spheres is interesting to reduce the thermal conductivity of the concrete pieces. This work aims to evaluate the concrete with addition of hollow glass microsphere with different combinations of dosage in concrete concerning strength and workability. Slump tests were performed in each dosage of concrete in order to evaluate
Cindy Yuri Ueki Peres, Antonio Hortêncio Munhoz, L.F. Miranda, A. Cabral Neto, A.R. Zandonadi, R.M. Peres, F.R.V. Diaz   +6 more
openaire   +1 more source

Development of hollow microspheres

2008
The aim of this project was to choose the proper parameters for the fabrication of hollow UF microspheres and to determine the mechanical, electrical and thermal properties of the hollow polymer microspheres.
openaire   +1 more source