نتایج جستجو برای: biocompatibility testing

تعداد نتایج: 346246  

Journal: :ASAIO journal 1999
V Metzler H Bienert T Lehmann K Mottaghy K Spitzer

Cytotoxicity tests are important for the screening and evaluation of biocompatibility of artificial organs. Morphologic changes of cells that were contacted biomaterials or biomaterial extracts indicate their toxicity. However, information on cytotoxic effects is still obtained by subjective visual inspection of microscopic samples. In this article, a novel computer assisted method is introduce...

2011
R Mihai IP Florescu V Coroiu A Oancea M Lungu

Biocompatible synthetic polymers are largely used in the bio-medical domain, tissue engineering and in controlled release of medicines. Polymers can be used in the achievement of cardiac and vascular devices, mammary implants, eye lenses, surgical threads, nervous conduits, adhesives, blood substitutes, etc. Our study was axed on the development of cytotoxicity tests for 3 synthetic polymers, n...

2014
Greeshma Thrivikraman Giridhar Madras Bikramjit Basu

With the progress in modern technological research, novel biomaterials are being largely developed for various biomedical applications. Over the past two decades, most of the research focuses on the development of a new generation of bioceramics as substitutes for hard tissue replacement. In reference to their application in different anatomical locations of a patient, newly developed biocerami...

Journal: :Investigative ophthalmology & visual science 2006
Soile Nymark Charlotte Haldin Heikki Tenhu Ari Koskelainen

PURPOSE To develop a method of using isolated rat retina as a biosensor in experiments on controlled drug release for measuring the resultant concentration of free model drug in living tissue and for testing the biocompatibility of the polymers and polymeric nanostructures used as drug carriers. METHODS The method is based on the monotonic dependence of the photoresponse kinetics of retinal r...

2012
Daozhen Chen Qiusha Tang Xiangdong Li Xiaojin Zhou Jia Zang Wen-qun Xue Jing-ying Xiang Cai-qin Guo

BACKGROUND The objective of this study was to evaluate the synthesis and biocompatibility of Fe₃O₄ nanoparticles and investigate their therapeutic effects when combined with magnetic fluid hyperthermia on cultured MCF-7 cancer cells. METHODS Magnetic Fe₃O₄ nanoparticles were prepared using a coprecipitation method. The appearance, structure, phase composition, functional groups, surface charg...

Journal: :journal of membrane science and research 0
i.g. wenten department of chemical engineering, itb, jl. ganesha 10, bandung 40132, indonesia p.t.p aryanti department of chemical engineering, itb, jl. ganesha 10, bandung 40132, indonesia k. khoiruddin department of chemical engineering, itb, jl. ganesha 10, bandung 40132, indonesia a.n. hakim department of chemical engineering, itb, jl. ganesha 10, bandung 40132, indonesia n.f. himma department of chemical engineering, itb, jl. ganesha 10, bandung 40132, indonesia

the polysulfone-based membrane has been used in hemodialysis (hd) and it is continuously developed to maintain its sustainability on the subject of biocompatibility. during the polysulfone-based membrane development, several parameters should be considered to improve the membrane performances, such as excellent biocompatibility, appropriate ultrafiltration rate, and effective clearance of the t...

2014
Cheng Zhu Liao Hoi Man Wong Kelvin Wai Kwok Yeung Sie Chin Tjong

This study focuses on the design, fabrication, microstructural and property characterization, and biocompatibility evaluation of polypropylene (PP) reinforced with carbon nanofiber (CNF) and hydroxyapatite nanorod (HANR) fillers. The purpose is to develop advanced PP/CNF-HANR hybrids with good mechanical behavior, thermal stability, and excellent biocompatibility for use as craniofacial implant...

2012
Waleed Elshahawy

During the past few years, the biocompatibility of biomaterials (non-vital material intended to interact with biological systems within or on the human body) has evolved into a comprehensive, complex, and independent discipline of biomaterials science. Consequently, a number of terms have been developed or were adopted from toxicology. Some of these terms may be familiar to patients and clinici...

2014
Sibel Koçak Hülya Erten Emre Baris Serkan Türk Tayfun Alaçam

OBJECTIVES The purpose of this study was to evaluate the biocompatibility of MTA and the experimentally manufactured portland cement (EMPC). STUDY DESIGN Twenty one Sprague Dawley (SD) rats were allocated to testing of three groups. Group I and Group II included ProRoot MTA and the EMPC. The materials were mixed with distilled water and placed in polyethylene tubes. The tubes were implanted s...

2017
Tahereh Pornamazeh Zahra Yadegari Amir Ghasemi Seyedeh Mahsa Sheykh-al-Eslamian Shiva Shojaeian

Introduction The present study sought to evaluate and compare biocompatibility and setting time of Retro mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) and Angelus MTA. Methods and Materials CEM cement, Angelus MTA and Retro MTA were assessed in set and fresh states. Extracts transformed to each cavity of three 24-well plates in which 1×104 cell were seeded into each well 24...

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