نتایج جستجو برای: nanofibrous scaffol

تعداد نتایج: 1765  

2014
Hwan Hee Oh Young-Gwang Ko Hiroshi Uyama Won Ho Park Donghwan Cho Oh Hyeong Kwon

Rapid cell growth and rapid recovery of intact cultured cells are an invaluable technique to maintain the biological functions and viability of cells. To achieve this goal, thermoresponsive polystyrene (PS) nanofibrous mat was fabricated by electrospinning of PS solution, followed by the graft polymerization of thermoresponsive poly(N-isopropylacrylamide)(PIPAAm) on PS nanofibrous mats. Image a...

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...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Craig K Hashi Yiqian Zhu Guo-Yuan Yang William L Young Benjamin S Hsiao Karin Wang Benjamin Chu Song Li

Nanostructured biomaterials have tremendous potential for tissue engineering. However, the performance and integration of the nanomaterials in vivo are not well understood. A challenge in vascular tissue engineering is to develop optimal scaffolds and establish expandable cell sources for the construction of tissue-engineered vascular grafts that are nonthrombogenic and have long-term patency. ...

2015
Jian-feng Pan Ning-hua Liu Lin-yuan Shu Hui Sun

BACKGROUND Electrospinning is an easy and effective technique to produce submicron fibers possessing a range of attractive characteristics such as interconnected porous structures similar to natural ECM and good resilience to movement. Rapid and efficient cell attachment to nanofibrous matrices is a necessary prerequisite in tissue engineering. Thus, the aim of this study is to evaluate poly(ε-...

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...

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 ...

Journal: :Science and technology of advanced materials 2011
Wee-Eong Teo Ryuji Inai Seeram Ramakrishna

Progress in the electrospinning techniques has brought new methods for the production and construction of various nanofibrous assemblies. The parameters affecting electrospinning include electrical charges on the emerging jet, charge density and removal, as well as effects of external perturbations. The solvent and the method of fiber collection also affect the construction of the final nanofib...

Journal: :Colloids and surfaces. B, Biointerfaces 2011
Z X Meng X X Xu W Zheng H M Zhou L Li Y F Zheng X Lou

Drug (Fenbufen, FBF)-loaded poly(D,L-lactide-co-glycolide) (PLGA) and PLGA/gelatin nanofibrous scaffolds were fabricated via electrospinning technique. The influences of gelatin content, fiber arrangement, crosslinking time and pH value of the buffer solution on FBF release behavior of the resulting nanofibrous scaffolds were investigated, with the corresponding FBF-loaded PLGA and PLGA/gelatin...

2015
Cheng-Hung Lee Kuo-Sheng Liu Shang-Hung Chang Wei-Jan Chen Kuo-Chun Hung Shih-Jung Liu Jong-Hwei S. Pang Jyuhn-Huarng Juang Chung-Chuan Chou Po-Cheng Chang Yi-Ting Chen Fu-Shing Wang

The nanofibrous biodegradable drug-loaded membranes that sustainably released recombinant human platelet-derived growth factor (rhPDGF-BB) to repair diabetic wounds were developed in this work.rhPDGF-BB and poly(lactic-co-glycolic acid) (PLGA) were mixed in hexafluoroisopropyl alcohol, followed by the electrospinning of the solutions into biodegradable membranes to equip the nanofibrous membran...

2014
Urve Paaver Ingrid Tamm Ivo Laidmäe Andres Lust Kalle Kirsimäe Peep Veski Karin Kogermann Jyrki Heinämäki

Electrospinning is an effective method in preparing polymeric nanofibrous drug delivery systems (DDSs) for topical wound healing and skin burn therapy applications. The aim of the present study was to investigate a new synthetic graft copolymer (Soluplus) as a hydrophilic carrier polymer in electrospinning of nanofibrous DDSs. Soluplus (polyvinyl caprolactam-polyvinyl acetate-polyethylene glyco...

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