نتایج جستجو برای: nanoporous

تعداد نتایج: 4915  

2002
Lara Leoni Darlene Attiah Tejal A. Desai

In recent years, rapid advancements have been made in the biomedical applications of micro and nanotechnology. While the focus of such technology has primarily been on in vitro analytical and diagnostic tools, more recently, in vivo therapeutic and sensing applications have gained attention. This paper describes the creation of monodisperse nanoporous, biocompatible, silicon membranes as a plat...

Journal: :Nanoscale 2014
Jie Ying Xiao-Yu Yang Ge Tian Christoph Janiak Bao-Lian Su

Nanoporous metal nanocrystals involving both nanoscale effects and nanopore properties hold enormous promising potential for various important applications due to their unique structures such as large surface area per unit volume and interconnected open framework. Self-assembly, as an excellent option, has been developed to control the desired structure and rational performance of nanoporous me...

Journal: :Physical chemistry chemical physics : PCCP 2010
François-Xavier Coudert

Predictive analytical methods are crucial tools in the design of adsorptive gas separation processes. While they are widely used for rigid nanoporous solids, there is a lack of flexible materials, including the very topical and promising dynamic metal-organic frameworks (MOFs), which display such eye-catching phenomena as gate opening and breathing. We present here the osmotic framework adsorbe...

2011
G. Wicht R. Ferrini S. Schüttel L. Zuppiroli

Multimode planar polymer waveguides were fabricated on hybrid polymer nanoporous layers with a fast industrial aqueous-based method well adapted to coat large-surface plastic substrates and easily scalable up to economical mass production volumes. Using a fiber probe internal light source technique, we were able to measure quantitatively the modal propagation losses. In particular, attenuation ...

2012
Mohammad Mahbubur Rahman Enric Garcia-Caurel Abel Santos Lluis F Marsal Josep Pallarès Josep Ferré-Borrull

A detailed study of the pore-widening rate of nanoporous anodic alumina layers as a function of the anodization voltage was carried out. The study focuses on samples produced under the same electrolyte and concentration but different anodization voltages within the self-ordering regime. By means of ellipsometry-based optical characterization, it is shown that in the pore-widening process, the p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده علوم پایه 1393

در این تحقیق، مواد نانو متخلخل عامل دار شده با گروه n,n-بیس( آمینو متیل)-n- اتیل پروپان-1،3-دی آمین(bedmp) در ساخت الکترود یون گزین یون آلومینیوم(iii) به کار رفته است. اثرات ترکیب درصد، زمان پاسخ دهی ، طول عمر و اثر ph بر روی پاسخ الکترود ارزیابی شد. الکترود تهیه شده در شرایط بهینه پاسخ نرنستی در گستره وسیعی از غلظت یون آلومینیوم (iii) از 6-10×0/1 تا 1-10×0/1 مولار با شیبdecade mv/1/0 ± 49/20 ا...

Journal: :Acta biomaterialia 2015
Sean McGinty Tuoi T N Vo Martin Meere Sean McKee Christopher McCormick

In this paper we provide the first model of drug elution from polymer-free arterial drug-eluting stents. The generalised model is capable of predicting drug release from a number of polymer-free systems including those that exhibit nanoporous, nanotubular and smooth surfaces. We derive analytical solutions which allow us to easily determine the important parameters that control drug release. Dr...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2012
Fèlix Casanova Casey E Chiang Anne M Ruminski Michael J Sailor Ivan K Schuller

The effect of pore morphology on capillary condensation and evaporation in nanoporous silicon is studied experimentally. A variety of cooperative and local effects are observed in tailored nanopores with well-defined regions by directly probing gas adsorption in each region using optical interferometry. All observations are ascribed to the ability of the nanopore region to access the gas reserv...

2005
Elena V. Charnaya Cheng Tien Dieter Michel M. K. Lee W. Wang

1. Introduction When liquids are embedded into nanoporous matrices their physical properties can be affected by confinement conditions. In particular, the self-diffusion process within nanopores was shown to alter noticeably compared to bulk for many inorganic and organic liquids. Our recent NMR studies showed that atomic mobility in liquid indium and gallium embedded into nanoporous matrices i...

2015
Bogdan K Ostafiychuk Ivan M Budzulyak Bogdan I Rachiy Vitalii M Vashchynsky Volodymyr I Mandzyuk Roman P Lisovsky Lyudmyla O Shyyko

The results of electrochemical studies of nanoporous carbon as electrode material for electrochemical capacitors (EC) are presented in this work. Nanoporous carbon material (NCM) was obtained from the raw materials of plant origin by carbonization and subsequent activation in potassium hydroxide. It is established that there is an optimal ratio of 1:1 between content of KOH and carbon material ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید