نتایج جستجو برای: biodegradable polymer

تعداد نتایج: 103158  

Journal: Vaccine Research 2014
Delaram Doroud, Hossien Heydari, Mehdi Shafiee Ardestani, Mohammad Sadeq Khosravy, Reza Ahangari Cohan, Rohollah Vahabpour, Safieh Amini, Seyed Bahman Momen, Seyed Mohammad Atyabi,

Manufacturing new Hepatitis B virus vaccines, specifically by the use of nanoparticles, is of high global interest. In this paper, a new biocompatible and biodegradable structure of nano-sized hepatitis B virus’ surface antigen (HBsAg) was generated by conjugation with dendrimers, a low cost biodegradable and biocompatible polymer. The physicochemical properties of the conjugate were characteri...

Journal: :European heart journal 2014
Si-Hyuck Kang Kyung Woo Park Do-Yoon Kang Woo-Hyun Lim Kyung Taek Park Jung-Kyu Han Hyun-Jae Kang Bon-Kwon Koo Byung-Hee Oh Young-Bae Park David E Kandzari David J Cohen Seung-Sik Hwang Hyo-Soo Kim

BACKGROUND The aim of this study was to compare the safety and efficacy of biodegradable-polymer (BP) drug-eluting stents (DES), bare metal stents (BMS), and durable-polymer DES in patients undergoing coronary revascularization, we performed a systematic review and network meta-analysis using a Bayesian framework. METHODS AND RESULTS Study stents included BMS, paclitaxel-eluting (PES), siroli...

Journal: :Lancet 2013
Evald Høj Christiansen Lisette Okkels Jensen Per Thayssen Hans-Henrik Tilsted Lars Romer Krusell Knud Nørregaard Hansen Anne Kaltoft Michael Maeng Steen Dalby Kristensen Hans Erik Bøtker Christian Juhl Terkelsen Anton Boel Villadsen Jan Ravkilde Jens Aarøe Morten Madsen Leif Thuesen Jens Flensted Lassen

BACKGROUND Third-generation biodegradable polymer drug-eluting stents might reduce the risk of stent thrombosis compared with first-generation permanent polymer drug-eluting stents. We aimed to further investigate the effects of a biodegradable polymer biolimus-eluting stent compared with a durable polymer-coated sirolimus-eluting stent in a population-based setting. METHODS This randomised, ...

Journal: :علوم و تکنولوژی پلیمر 0
نادر مختارانی حسین گنجی دوست ابراهیم واشقانی فراهانی منیژه خالقی سرنامی

polyhydroxyalkanoates (phas) is known to be temporarily stored by microorganisms in activated sludge, especially in the anaerobic-aerobic processes. the main objective of this study was to investigate the effects of fatty acids (vfas) compounds coexistence in substrate of sbr on phas productivity of activated sludge. it has been found that addition of different concentrations of vfas results in...

2010
Roshan B. Yoganathan Raffaella Mammucari Neil R. Foster

Dense CO2 can be used as an environmentally-benign polymer processing medium because of its liquid-like densities and gas-like mass transfer properties.In this work, polymer bio-blends of polycarbonate (PC), a biocompatible polymer, and polycaprolactone (PCL), a biodegradable polymer were prepared. Dense CO2 was used as a reaction medium for the melt-phase PC polymerization in the presence of d...

Journal: :JACC. Cardiovascular interventions 2015
Fumiyuki Otsuka Qi Cheng Kazuyuki Yahagi Eduardo Acampado Alexander Sheehy Saami K Yazdani Kenichi Sakakura Kristina Euller Laura E L Perkins Frank D Kolodgie Renu Virmani Michael Joner

OBJECTIVES This study sought to evaluate whether the permanent fluoropolymer-coated Xience Xpedition everolimus-eluting stent (Xience-EES) exhibits lower acute thrombogenicity compared with contemporary drug-eluting stents (DES) with biodegradable polymer coatings in an acute swine shunt model. BACKGROUND Previous pre-clinical and clinical experience suggests that several factors may influenc...

Journal: :vaccine research 0
mohammad sadeq khosravy department of hepatitis and aids, pasteur institute of iran, tehran, iran, department of laboratory animal sciences, production and research complex, pasteur institute of iran, tehran, iran mehdi shafiee ardestani department of radiopharmacy, faculty of pharmacy, tehran university of medical sciences, tehran, iran reza ahangari cohan department of pilot biotechnology, pasteur institute of iran, tehran, iran delaram doroud department of quality assurance, production and research complex, pasteur institute of iran, tehran, iran safieh amini department of hepatitis and aids, pasteur institute of iran, tehran, iran seyed bahman momen department of pilot biotechnology, pasteur institute of iran, tehran, iran

manufacturing new hepatitis b virus vaccines, specifically by the use of nanoparticles, is of high global interest. in this paper, a new biocompatible and biodegradable structure of nano-sized hepatitis b virus’ surface antigen (hbsag) was generated by conjugation with dendrimers, a low cost biodegradable and biocompatible polymer. the physicochemical properties of the conjugate were characteri...

Journal: :Cancer control : journal of the Moffitt Cancer Center 1998
Sampath Brem

BACKGROUND: Despite significant advances in neurosurgery, radiation therapy, and chemotherapy, the prognosis for patients with malignant brain tumors remains dismal. In an effort to improve control of local disease, we have developed a biodegradable, controlled-release polymer that is implanted directly at the tumor site. METHODS: The preclinical and clinical development of the polymeric delive...

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