نتایج جستجو برای: nanoporous structure

تعداد نتایج: 1572004  

Journal: :Nano letters 2009
Taek-Soo Kim Katherine Mackie Qiping Zhong Maria Peterson Tomohisa Konno Reinhold H Dauskardt

Polymer molecules when physically confined at nanometer length scales diffuse nonclassically and very differently depending on their molecular weight and the nature of the confinement. Long polymers that exhibit "snakelike" reptation based mobility in melts may diffuse faster in confined nanometer sized cylinders with pore diameter d approximately 15 nm, and short polymers subject to Rouse dyna...

2006
Nanoporous Gold Andrea M. Hodge Joel R. Hayes Jose A. Caro Juergen Biener Alex V. Hamza

Metallic foams with pore sizes from 250 lm to 2 mm have been a subject of research for over two decades due to their high surface area, which allows for a variety of applications, such as thermal and sound insulation. Recently, processing of metallic foams at the nanoscale (pores sizes less than 100 nm) has opened the door to new and interesting applications, such as sensors and actuators. In g...

Journal: :journal of nanostructures 2014
h. bashiri s. eris

isotherm equation is one of the important scientific bases for adsorbent selection. there are different isotherms that do not account for an adsorbate, different chemisorption geometries on the nanoporous surface. it is interesting to introduce a general isotherm, which considers different chemisorption geometries of an adsorbate on nanoporous surfaces. in this study, an isotherm for non-dissoci...

2017
Takashi Miyaji Noriko Nitta

Nanoporous structures have a great potential for application in electronic and photonic materials, including field effect transistors, photonic crystals, and quantum dots. The control of size and shape is important for such applications. In this study, nanoporous structure formation on the indium antimonide (InSb) surface was investigated using controlled focused ion beam irradiation. Upon incr...

2014
Fu-Juan LIU Ji-Huan HE Lan XU Ping WANG

Recently, nanoporous fibers have been caught much attention as the most promising material in nanotechnology. To our knowledge, nanoporous materials have extremely high surface area and are widely used in different fields, such as filtration, radiation protection, catalysis, sensors, tissue engineering, and drug delivery [1-2]. Electrospinning is an effective method, which can fabricate polymer...

Journal: :Journal of magnetic resonance 2005
Eduard Y Chekmenev Jun Hu Peter L Gor'kov William W Brey Timothy A Cross Andres Ruuge Alex I Smirnov

This communication reports the first example of a high resolution solid-state 15N 2D PISEMA NMR spectrum of a transmembrane peptide aligned using hydrated cylindrical lipid bilayers formed inside nanoporous anodic aluminum oxide (AAO) substrates. The transmembrane domain SSDPLVVA(A-15N)SIIGILHLILWILDRL of M2 protein from influenza A virus was reconstituted in hydrated 1,2-dimyristoyl-sn-glycero...

2013
YUQUAN HAO SHUJUN LI XUESONG HAN YULIN HAO HONGJUN AI

The aim of the present study was to investigate the effects of the surface characteristics of nanoporous titanium oxide films, formed by anodization on Ti-24Nb-4Zr-8Sn (Ti2448) alloy, on the early adhesion of osteoblast-like MG-63 cells. Nanoporous titanium oxide films with two different pore sizes (30 and 90 nm) were formed by anodization in NH4F solution on Ti2448 alloy. The surface roughness...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2007

Journal: :Chemistry of Materials 2022

We study the structural and mechanical properties of nanoporous (NP) carbon materials by extensive atomistic machine-learning (ML) driven molecular dynamics (MD) simulations. To this end, we retrain a ML Gaussian approximation potential (GAP) for recalculating a-C database Deringer Csányi adding van der Waals interactions. Our GAP enables notable speedup improves accuracy energy force predictio...

Journal: :Construction and Building Materials 2022

Nanoporous cement paste (NCP) has been successfully prepared by adding nanopore-forming agent into paste, and the measured effective thermal conductivity (?e) of NCP shows that it excellent insulation performance. To promote design application, ?e estimation is essential. In this paper, a hybrid fractal model (HFM) was developed based on theory related iterative algorithm using Sierpinski carpe...

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