نتایج جستجو برای: pvp pvpam film

تعداد نتایج: 93545  

2013
Abebayehu N Yilma Shree R Singh Saurabh Dixit Vida A Dennis

Chlamydia trachomatis is a very common sexually transmissible infection in both developing and developed countries. A hallmark of C. trachomatis infection is the induction of severe inflammatory responses which play critical roles in its pathogenesis. Antibiotics are the only treatment option currently available for controlling C. trachomatis infection; however, they are efficacious only when a...

Journal: :The journal of physical chemistry. C, Nanomaterials and interfaces 2012
Xiaohu Xia Jie Zeng Qiang Zhang Christine H Moran Younan Xia

This feature article introduces our recent work on understanding the roles played by citrate and poly(vinyl pyrrolidone) (PVP) as capping agents in seed-mediated syntheses of Ag nanocrystals with controlled shapes. We have demonstrated that citrate and PVP selectively bind to Ag(111) and Ag(100) surfaces, respectively, and thus favor the formation of Ag nanocrystals enclosed preferentially by {...

Journal: :European urology 2011
Carlos Capitán Cristina Blázquez M Dolores Martin Virginia Hernández Enrique de la Peña Carlos Llorente

BACKGROUND High-level evidence to support the use of photoselective vaporization of the prostate (PVP) is limited. OBJECTIVE Assess the efficacy and safety of GreenLight HPS 120-W laser PVP compared with transurethral resection of the prostate (TURP). DESIGN, SETTING, AND PARTICIPANTS A randomized clinical trial was performed with 50 patients having lower urinary tract symptoms due to benig...

2008
R. J. Sengwa S. Choudhary S. Sankhla

The dielectric dispersion behaviour of montmorillonite (MMT) clay nanoparticles colloidal suspension in poly(vinyl pyrrolidone)-ethylene glycol (PVP-EG) blends were investigated over the frequency range 20 Hz to 1 MHz at 30°C. The 0, 1, 2, 3, 5 and 10 wt% MMT clay concentration of the weight of total solute (MMT+PVP) were prepared in PVP-EG blends using EG as solvent. The complex relative diele...

Journal: :The British journal of surgery 2012
M Hidaka M Takatsuki A Soyama T Tanaka I Muraoka T Hara T Kuroki T Kanematsu S Eguchi

BACKGROUND Outcomes of liver resection for hepatocellular carcinoma (HCC) have improved owing to better surgical techniques and patient selection. Portal hypertension may influence outcome but the preoperative definition and role of portal hypertension are far from clear. The aim of this study was to elucidate the influence of portal venous pressure (PVP) measured directly during surgery on out...

2015
Li-Min Chao Ting-Yu Tai Yueh-Ying Chen Pei-Ying Lin Yaw-Shyan Fu

In our study, one-dimensional PbI₂/polyvinylpyrrolidone (PVP) composition fibers have been prepared by using PbI₂ and PVP as precursors dissolved in N,N-dimethylformamide via a electrospinning process. Dipping the fibers into CH₃NH₃I solution changed its color, indicating the formation of CH₃NH₃PbI₃, to obtain CH₃NH₃PbI₃/PVP composite fibers. The structure, morphology and composition of the all...

Journal: :Advanced materials 2015
Xinge Yu Li Zeng Nanjia Zhou Peijun Guo Fengyuan Shi Donald B Buchholz Q Ma Junsheng Yu Vinayak P Dravid Robert P H Chang Michael Bedzyk Tobin J Marks Antonio Facchetti

Ultra-flexible and transparent metal oxide transistors are developed by doping In2 O3 films with poly(vinylphenole) (PVP). By adjusting the In2 O3 :PVP weight ratio, crystallization is frustrated, and conducting pathways for efficient charge transport are maintained. In2 O3 :5%PVP-based transistors exhibit mobilities approaching 11 cm(2) V(-1) s(-1) before, and retain up to ca. 90% performance ...

Journal: :Acta poloniae pharmaceutica 2008
Barbara Cwiertnia

Pharmaceutical availability of diazepam, oxazepam and nitrazepam from solid dispersions of PVP have been studied in comparison to those of the corresponding physical mixtures and pure benzodiazepines. The derivatives of 1,4-benzodiazepin-2-one are poorly water soluble drugs. The properties of diazepam-, oxazepam- and nitrazepam-PVP solid dispersions have been determined by the methods of differ...

Journal: :Journal of the American Chemical Society 2012
Xiaohu Xia Jie Zeng L Kyle Oetjen Qingge Li Younan Xia

This article presents a quantitative analysis of the role played by poly(vinylpyrrolidone) (PVP) in seed-mediated growth of Ag nanocrystals. Starting from Ag nanocubes encased by {100} facets as the seeds, the resultant nanocrystals could take different shapes depending on the concentration of PVP in the solution. If the concentration was above a critical value, the seeds simply grew into large...

Journal: :Spine 2016
Er-Zhu Yang Jian-Guang Xu Gao-Zhong Huang Wen-Zhen Xiao Xiao-Kang Liu Bing-Fang Zeng Xiao-Feng Lian

STUDY DESIGN A prospective randomized clinical trial. OBJECTIVE In this study, we determine whether percutaneous vertebroplasty (PVP) offers extra benefits to aged patients with acute osteoporotic vertebral compression fractures (OVCFs) over conservative therapy (CV). SUMMARY OF BACKGROUND DATA OVCFs are common in the aged population with osteoporosis. While the optimal treatment of aged pa...

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