نتایج جستجو برای: stiffness of nano membrane

تعداد نتایج: 21203320  

The aim of this paper is to investigate adhesion property between nano-layered filler and the polymer matrix using a combination of experimental and micromechanical models as well as the changes in yield strength and stiffness of a layered silicate-filled epoxy nanocomposite. The results indicate that addition of intercalated layered silicate particles increased Young’s modulus and yield streng...

Journal: :Zhong xi yi jie he xue bao = Journal of Chinese integrative medicine 2007
Min Wu Juan Liu Xin Zhang

OBJECTIVE To discuss the influences of the concentrations of sodium cholate, cholesterol and drug, preparation temperature, ultrasonic time and power on the particle size and encapsulation efficiency of Flos Magnoliae volatile oil nano-liposome through film-ultrasonic wave technique together with membrane filter method. METHODS The nano-liposomes were prepared by film-ultrasonic wave techniqu...

A. Davar J. Emami, J. Eskandari Jam, M.R. Zamani

The free vibration of the lattice cylindrical composite shell reinforced with Carbon Nano-tubes (CNTs) was studied in this study. The theoretical formulations are based on the First-order Shear Deformation Theory (FSDT) and then by enforcing the Galerkin method, natural frequencies are obtained. In order to estimate the material properties of the reinforced polymer with nano-tubes, the modified...

Sayed Siavash Madaeni, Tina Akbarzadeh Arbatan

The microfiltration 0.2 µm Cellulose Acetate (CA) membrane was modified by embedding antibacterial silver nano-particles in the membrane pores. This novel technique was developed to enhance the capability of the microfiltration membrane for removing microorganism including bacteria. The prepared membrane was characterized using Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray Spe...

Journal: :Nature materials 2014
Ovijit Chaudhuri Sandeep T Koshy Cristiana Branco da Cunha Jae-Won Shin Catia S Verbeke Kimberly H Allison David J Mooney

In vitro models of normal mammary epithelium have correlated increased extracellular matrix (ECM) stiffness with malignant phenotypes. However, the role of increased stiffness in this transformation remains unclear because of difficulties in controlling ECM stiffness, composition and architecture independently. Here we demonstrate that interpenetrating networks of reconstituted basement membran...

Introduction: Nano-liposomes are Nano particulate vesicles with lipoid membrane which are under extensive investigation as drug carriers for improving the delivery of therapeutic agents. This study intended to enhance efficacy of Silibinin herbal drug in Nano liposome system (Nano phytosome) via encapsulation for delivery to liver cancer cells. Silibinin is one of the anti-cancer drugs, whi...

Journal: :Lab on a chip 2016
Mario Tonin Nicolas Descharmes Romuald Houdré

We demonstrate the fabrication of a hybrid PDMS/glass microfluidic layer that can be placed on top of non-transparent samples and allows high-resolution optical microscopy through it. The layer mimics a glass coverslip to limit optical aberrations and can be applied on the sample without the use of permanent bonding. The bonding strength can withstand to hold up to 7 bars of injected pressure i...

Journal: Journal of Nanoanalysis 2017

Ceramic membranes are considered as alternatives for their polymeric counterparts due to highmechanical strength and thermal resistance; thus long lifetime. Usually, asymmetric ceramicmembranes are synthesized including several layers with different pore size distributionswith the top-layer playing the main separation role. Titania has several properties such asphotocatalytic activity and chemi...

L. Samiee, M. Ayazi M. Dehghani Mobarake R. Karami

In the present work, for the first time, a palladium-silver membrane has been prepared by electroless plating on the surface of a porous stainless steel disk by using ethylene glycol as a new reducing agent and polyol process. The reducing action of ethylene-glycol in the presence of PVP as a protecting surface agent produces a membrane with finely divided powder and nano-sized pores. Furthermo...

2014
Josip Sertić Dražan Kozak Ivan Samardžić

The values of reaction forces in the boiler supports are the basis for the dimensioning of bearing steel structure of steam boiler. In this paper, the application of the method of equivalent stiffness of membrane wall is proposed for the calculation of reaction forces. The method of equalizing displacement, as the method of homogenization of membrane wall stiffness, was applied. On the example ...

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