نتایج جستجو برای: poly s caprolactone

تعداد نتایج: 784422  

2011
Ning Han Shreyas S. Rao Jed Johnson Kunal S. Parikh Patrick A. Bradley John J. Lannutti Jessica O. Winter

Achieving stable, long-term performance of implanted neural prosthetic devices has been challenging because of implantation related neuron loss and a foreign body response that results in encapsulating glial scar formation. To improve neuron-prosthesis integration and form chronic, stable interfaces, we investigated the potential of neurotrophin-eluting hydrogel-electrospun fiber mat (EFM) comp...

2018
DanRong Hu LiJuan Chen Ying Qu JinRong Peng BingYang Chu Kun Shi Ying Hao Lin Zhong MengYao Wang ZhiYong Qian

The combination of chemotherapy with photodynamic therapy (PDT) has attracted broad attention as it can overcome limitations of conventional chemo-treatment by using different modes of action. However, the efficacy of PDT to treat solid tumors is severely affected by hypoxia in tumors. Methods: In this study, we developed oxygen-generating theranostic nanoparticles (CDM NPs) by hierarchically a...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Jonathan M Brunger Nguyen P T Huynh Caitlin M Guenther Pablo Perez-Pinera Franklin T Moutos Johannah Sanchez-Adams Charles A Gersbach Farshid Guilak

The ability to develop tissue constructs with matrix composition and biomechanical properties that promote rapid tissue repair or regeneration remains an enduring challenge in musculoskeletal engineering. Current approaches require extensive cell manipulation ex vivo, using exogenous growth factors to drive tissue-specific differentiation, matrix accumulation, and mechanical properties, thus li...

2016
Hossein Danafar

The Clavulanic acid (CLV) is a suicide inhibitor of bacterial beta-lactamase enzymes from Streptomyces clavuligerus. In the present study, a reliable drug delivery system using poly (ε-caprolactone)-poly (ethylene glycol)-poly (ε-caprolactone) (PCL-PEG-PCL) was synthesized and the release profile of the CLV from the drug-loaded polymersomes was evaluated. In this study, CLV was encapsulated wit...

Journal: :Journal of Polymers and The Environment 2021

Abstract Polymerizations of l -lactide catalyzed either by neat SnCl 2 or + difunctional cocatalysts were conducted in bulk at 180, 160 and 140 °C with variation the Lac/Cat ratio time. With poly(L-lactide) having weight average molecular weights (uncorrected M w ’s) up to 190 000 g mol −1 obtained mainly consisting linear chains. Addition salicylic acid 1,1-bisphenol yielded a higher fraction ...

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