نتایج جستجو برای: problematizing scaffolds

تعداد نتایج: 18882  

Journal: :Journal of biomedical materials research. Part A 2005
Andrea B Caruso Michael G Dunn

Resorbable scaffolds for anterior cruciate ligament (ACL) reconstruction should provide temporary mechanical function then gradually breakdown while promoting matrix synthesis by local cells. Crosslinking influences collagen's mechanical properties, degradation rate, and interactions with cells. Our objective was to compare the effects of different crosslinkers on cellularity and mechanical pro...

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...

2007
Sung-Pei Tsai Chien-Yang Hsieh Chung-Yu Hsieh Da-Ming Wang Lynn Ling-Huei Huang Juin-Yih Lai Hsyue-Jen Hsieh

In this study, a novel freeze-gelation method instead of the conventional freeze-drying method was used to fabricate porous chitosan/collagen-based composite scaffolds for skin-related tissue engineering applications. To improve the performance of chitosan/collagen composite scaffolds, we added 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC) and amino acids (including alanine, glycine, and...

2013
Thakoon Thitiset Siriporn Damrongsakkul Tanom Bunaprasert Wilairat Leeanansaksiri Sittisak Honsawek

The aim of this study was to investigate physical and biological properties of collagen (COL) and demineralized bone powder (DBP) scaffolds for bone tissue engineering. DBP was prepared and divided into three groups, based on various particle sizes: 75-125 µm, 125-250 µm, and 250-500 µm. DBP was homogeneously mixed with type I collagen and three-dimensional scaffolds were constructed, applying ...

2014
Fahimeh Khayyatan Shiva Nemati Sahar Kiani Shahriar Hojjati Emami Hossein Baharvand

OBJECTIVE Biomaterial technology, when combined with emerging human induced pluripotent stem cell (hiPSC) technology, provides a promising strategy for patient-specific tissue engineering. In this study, we have evaluated the physical effects of collagen scaffolds fabricated at various freezing temperatures on the behavior of hiPSC-derived neural progenitors (hiPSC-NPs). In addition, the coatin...

2013
Yan Xia Panyu Zhou Xiaosong Cheng Yang Xie Chong Liang Chao Li Shuogui Xu

The regeneration of functional tissue in osseous defects is a formidable challenge in orthopedic surgery. In the present study, a novel biomimetic composite scaffold, here called nano-hydroxyapatite (HA)/poly-ε-caprolactone (PCL) was fabricated using a selective laser sintering technique. The macrostructure, morphology, and mechanical strength of the scaffolds were characterized. Scanning elect...

Journal: :International Journal of Bilingual Education and Bilingualism 2022

This paper critically analyses the meaning and use of translanguaging as an inclusive pedagogical strategy in context a bilingual deaf education classroom where there are asymmetrical sensorial experiences being hearing, different access to ‘codified’ (either speech or sign-language) resources. The opportunities constraints examined through analysis meaning-making resources among hearing interl...

2018
Yue Song Kaifeng Lin Shu He Chunmei Wang Shuaishuai Zhang Donglin Li Jimeng Wang Tianqing Cao Long Bi Guoxian Pei

Background and aim As a newly emerging three-dimensional (3D) printing technology, low-temperature robocasting can be used to fabricate geometrically complex ceramic scaffolds at low temperatures. Here, we aimed to fabricate 3D printed ceramic scaffolds composed of nano-biphasic calcium phosphate (BCP), polyvinyl alcohol (PVA), and platelet-rich fibrin (PRF) at a low temperature without the add...

Journal: :Journal of biomedical materials research. Part A 2010
K Tuzlakoglu I Pashkuleva M T Rodrigues M E Gomes G H van Lenthe R Müller R L Reis

This study proposes a new route for producing fiber mesh scaffolds from a starch-polycaprolactone (SPCL) blend. It was demonstrated that the scaffolds with 77% porosity could be obtained by a simple wet-spinning technique based on solution/precipitation of a polymeric blend. To enhance the cell attachment and proliferation, Ar plasma treatment was applied to the scaffolds. It was observed that ...

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