نتایج جستجو برای: directing self assembly

تعداد نتایج: 637420  

Journal: :Computers in Human Behavior 2008
Tasuku Igarashi Tadahiro Motoyoshi Jiro Takai Toshikazu Yoshida

A survey was conducted to investigate how self-perception of text-message dependency leads to psychological/behavioral symptoms in relation to personality factors. Japanese high school students completed a self-report questionnaire measuring frequency of text-messages, self-perception of textmessage dependency, psychological/behavioral symptoms, extroversion and neuroticism. Self-perception of ...

Journal: :Chemical communications 2014
Bishnu Prasad Bastakoti Yunqi Li Nobuyoshi Miyamoto Noelia M Sanchez-Ballester Hideki Abe Jinhua Ye Pavuluri Srinivasu Yusuke Yamauchi

Pt-decorated mesoporous silica is directly prepared using a polymeric micelles assembly approach using an asymmetric triblock copolymer, poly(styrene-b-2-vinylpyridine-b-ethylene oxide) as the structure directing agent. Strongly immobilized, fully accessible, and uniformly dispersed Pt nanoparticles on mesoporous silica wall exhibit superior catalytic activity toward CO oxidation.

2011
Yan Li Andreas Keilbach Marcel Kienle Yasutomo Goto Shinji Inagaki Paul Knochel Thomas Bein

Novel composites of highly ordered and stable biphenyl-bridged periodic mesoporous organosilica (PMO) materials confined within the pores of anodic alumina membranes (AAM) were successfully synthesized by evaporation-induced self-assembly (EISA). 4,40-Bis(triethoxysilyl)biphenyl (BTEBP) was used as a precursor in combination with the ionic surfactant cetyltrimethylammonium bromide (CTAB) or tri...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Yanan Du Edward Lo Shamsher Ali Ali Khademhosseini

We present a bottom-up approach to direct the assembly of cell-laden microgels to generate tissue constructs with tunable microarchitecture and complexity. This assembly process is driven by the tendency of multiphase liquid-liquid systems to minimize the surface area and the resulting surface free energy between the phases. We demonstrate that shape-controlled microgels spontaneously assemble ...

Journal: :Physical chemistry chemical physics : PCCP 2015
Myeongjin Kim Ilgeun Oh Jooheon Kim

Three-dimensional silicon carbide-based frameworks with hierarchical micro-, meso-, and macroporous structures (3MPSiC) were prepared by a template method with subsequent carbonization via an aerosol spray drying method. The micropores were derived from partial vaporization of Si atoms during the carbonization process, whereas the meso- and macropores were generated by self-assembly of the stru...

Journal: :Chemical communications 2013
Haridas Kar Mijanur Rahaman Molla Suhrit Ghosh

The utility of an external structure-directing agent to induce orthogonal H-bonding-mediated programmed supramolecular-assembly and gelation of an n-type NDI chromophore is reported. Further, the effect of π-stacking and morphology on electrical conductivity of semiconducting NDI building blocks is revealed.

2005
Johannes V. Barth Giovanni Costantini

The fabrication methods of the microelectronics industry have been refined to produce ever smaller devices, but will soon reach their fundamental limits. A promising alternative route to even smaller functional systems with nanometre dimensions is the autonomous ordering and assembly of atoms and molecules on atomically well-defined surfaces. This approach combines ease of fabrication with exqu...

Journal: :Angewandte Chemie 2005
Meike Stöhr Markus Wahl Christian H Galka Till Riehm Thomas A Jung Lutz H Gade

2013
David Holcman

Stochastic analysis of superresolution microscopy data obtained from receptor trafficking on neurons reveals novel organized molecular assembly generating long range forces. Would that have been possible with single particle tracking? How have we characterized these molecular assemblies?

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