نتایج جستجو برای: Nanofibrous scaffolds

تعداد نتایج: 19750  

Journal: :international journal of nanoscience and nanotechnology 2011
a. doustgani e. vasheghani-farahani m. soleimani s. hashemi-najafabadi

nanofibrous scaffolds produced by electrospinning have attracted much attention, recently. aligned and random nanofibrous scaffolds of poly (vinyl alcohol) (pva), poly (ε-caprolactone) (pcl) and nanohydroxyapatite  (nha) were fabricated by electrospinning method in this study. the composite nanofibrous scaffolds were subjected to detailed analysis. morphological investigations revealed that the...

2014
Kailash Chandra Gupta Adnan Haider Yu-ri Choi Inn-kyu Kang

Nanofibrous scaffolds are artificial extracellular matrices which provide natural environment for tissue formation. In comparison to other forms of scaffolds, the nanofibrous scaffolds promote cell adhesion, proliferation and differentiation more efficiently due to having high surface to volume ratio. Although scaffolds for tissue engineering have been fabricated by various techniques but elect...

A. Doustgani E. Vasheghani-Farahani M. Soleimani S. Hashemi-Najafabadi

Nanofibrous scaffolds produced by electrospinning have attracted much attention, recently. Aligned and random nanofibrous scaffolds of poly (vinyl alcohol) (PVA), poly (ε-caprolactone) (PCL) and nanohydroxyapatite  (nHA) were fabricated by electrospinning method in this study. The composite nanofibrous scaffolds were subjected to detailed analysis. Morphological investigations revealed that the...

Journal: :nanomedicine research journal 0
ali gheibi textile engineering department, textile excellence & research centers, amirkabir university of technology, tehran, iran kamyar khoshnevisan biosensor research center, endocrinology and metabolism molecular-cellular sciences institute, tehran university of medical sciences, tehran, iran najmeh ketabchi department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences mohammad ali derakhshan department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences arman amani babadi nanotechnology and catalysis research centre (nanocat), university of malaya, ips building, 50603, kuala lumpur, malaysia

among the synthetic polymers, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (phbv) microbial polyester is one of the biocompatible and biodegradable copolymers in the nanomedicine scope. phbv has key points and suitable properties to support cellular adhesion, proliferation and differentiation of nanofibers. nanofibers are noticeably employed in order to enhance the performance of biomaterials,...

Journal: Nanomedicine Journal 2013

Aligned and random nanocomposite nanofibrous scaffolds were electrospun from polycaprolactone (PCL), poly (vinyl alcohol) (PVA) and hydroxyapatite nanoparticles (nHA). The morphology and mechanical characteristics of the nanofibers were evaluated using scanning electron microscopy and tensile testing, respectively. Scanning electron microscopy revealed fibers with an average diameter of 123 ± 3...

Journal: :nanomedicine journal 0
a. doustgani department of chemical engineering, university of zanjan, zanjan, iranسازمان اصلی تایید شده: دانشگاه زنجان (zanjan university) m. s. pedram faculty of veterinary medicine, university of tehran, tehran, iranسازمان اصلی تایید شده: دانشگاه تهران (tehran university)

objective(s): in this study, the effect of electrospun fiber orientation on proliferation and differentiation of mesenchymal stem cells (mscs) was evaluated. materials and methods: aligned and random nanocomposite nanofibrous scaffolds were electrospun from polylactic acid (pla), poly (vinyl alcohol) (pva) and calcium carbonate nanoparticles (ncap). the surface morphology of prepared nanofibrou...

2017
R T De Silva M M M G P G Mantilaka K L Goh S P Ratnayake G A J Amaratunga K M Nalin de Silva

Mechanically robust alginate-based nanofibrous scaffolds were successfully fabricated by electrospinning method to mimic the natural extracellular matrix structure which benefits development and regeneration of tissues. Alginate-based nanofibres were electrospun from an alginate/poly(vinyl alcohol) (PVA) polyelectrolyte complex. SEM images revealed the spinnability of the complex composite nano...

Journal: :Carbohydrate polymers 2014
Farah Hanani Zulkifli Fathima Shahitha Jahir Hussain Mohammad Syaiful Bahari Abdull Rasad Mashitah Mohd Yusoff

In this study, a novel fibrous membrane of hydroxyethyl cellulose (HEC)/poly(vinyl alcohol) blend was successfully fabricated by electrospinning technique and characterized. The concentration of HEC (5%) with PVA (15%) was optimized, blended in different ratios (30-50%) and electrospun to get smooth nanofibers. Nanofibrous membranes were made water insoluble by chemically cross-linking by gluta...

2009
Kalamegam Gauthaman Jayarama Reddy Venugopal Fong Chui Yee Gary Swee Lim Peh Seeram Ramakrishna Ariff Bongso

Inadequate cell numbers in culture is one of the hurdles currently delaying the application of human embryonic stem cells (hESCs) for transplantation therapy. Nanofibrous scaffolds have been effectively used to expand and differentiate non-colony forming multipotent mesenchymal stem cells (MSC) for the repair of tissues or organs. In the present study, we evaluated the influence of nanofibrous ...

2012
Kui-Hua Zhang Qing Ye Zhi-Yong Yan

In order to improve the water-resistant ability of silk fibroin (SF) and SF/P(LLA-CL) blended nanofibrous scaffolds for tissue engineering applications, 75% (v/v) ethanol vapor was used to post-treat electrospun nanofibers. SEM indicated that the treated SF and SF/P(LLA-CL) nanofibrous scaffolds maintained a nanofibrous structure and possessed good water-resistant ability. Characterization of (...

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