نتایج جستجو برای: biodegradable polymer

تعداد نتایج: 103158  

Journal: :Molecules 2018
Fu-Rong Zeng Yang Liang Zi-Long Li

Precise structure-property relation of a biodegradable polymer (e.g., aliphatic polyester) is anticipated only if monomer units and chiral centers are arranged in a defined primary sequence as a biomacromolecule. An emerging synthetic methodology, namely segmer assembly polymerization (SAP), is introduced in this paper to reveal the latest progress in polyester synthesis. Almost any periodic po...

Journal: :Chemical Society reviews 2011
Donald J A Cameron Michael P Shaver

A critical review: the ring-opening polymerization of cyclic esters provides access to an array of biodegradable, bioassimilable and renewable polymeric materials. Building these aliphatic polyester polymers into larger macromolecular frameworks provides further control over polymer characteristics and opens up unique applications. Polymer stars, where multiple arms radiate from a single core m...

2017
Fon-Yih Tsuang Yueh-Ying Hsieh Yi-Jie Kuo Chia-Hsien Chen Feng-Huei Lin Chen-Sheng Chen Chang-Jung Chiang

Interbody fusion with posterior instrumentation is a common method for treating lumbar degenerative disc diseases. However, the high rigidity of the fusion construct may produce abnormal stresses at the adjacent segment and lead to adjacent segment degeneration (ASD). As such, biodegradable implants are becoming more popular for use in orthopaedic surgery. These implants offer sufficient stabil...

2016
Vincenzo Taresco Jiraphong Suksiriworapong Rhiannon Creasey Jonathan C. Burley Giuseppe Mantovani Cameron Alexander Kevin Treacher Jonathan Booth Martin C. Garnett

There is an increasing need to develop bio-compatible polymers with an increased range of different physicochemical properties. Poly(glycerol-adipate) (PGA) is a biocompatible, biodegradable amphiphilic polyester routinely produced from divinyl adipate and unprotected glycerol by an enzymatic route, bearing a hydroxyl group that can be further functionalized. Polymers with an average Mn of ∼13 ...

Journal: :Data in brief 2016
Ramasatyaveni Geesala Nimai Bar Neha R Dhoke Pratyay Basak Amitava Das

Low bioavailability and/or survival at the injury site of transplanted stem cells necessitate its delivery using a biocompatible, biodegradable cell delivery vehicle. In this dataset, we report the application of a porous biocompatible, biodegradable polymer network that successfully delivers bone marrow stem cells (BMSCs) at the wound site of a murine excisional splint wound model. In this dat...

2004
Niju Narayanan Pradip K. Roychoudhury Aradhana Srivastava

* Corresponding author Lactic acid has been first introduced to us as early as 1780 as a sour component of milk. Ever since we have found its applications in food, pharmaceutical, cosmetic industries etc. Now there are emerging uses as a potential feedstock for the biodegradable polymer industry. The microorganisms being used for lactic acid fermentation, the raw materials reported, the various...

2016
Handan Acar Saikat Banerjee Heliang Shi Reihaneh Jamshidi Nastaran Hashemi Michael W. Cho Reza Montazami

Polymer-based interpenetrating networks (IPNs) with controllable and programmable degradation and release kinetics enable unique opportunities for physisorption and controlled release of therapeutic proteins or vaccines while their chemical and structural integrities are conserved. This paper presents materials, a simple preparation method, and release kinetics of a series of long-term programm...

2014
Richard B McQualter Maria N Somleva Leigh K Gebbie Xuemei Li Lars A Petrasovits Kristi D Snell Lars K Nielsen Stevens M Brumbley

BACKGROUND Polyhydroxyalkanoates are linear biodegradable polyesters produced by bacteria as a carbon store and used to produce a range of bioplastics. Widespread polyhydroxyalkanoate production in C4 crops would decrease petroleum dependency by producing a renewable supply of biodegradable plastics along with residual biomass that could be converted into biofuels or energy. Increasing yields t...

Journal: :Acta biomaterialia 2011
Hyeongho Shin Jason W Nichol Ali Khademhosseini

The development of materials with biomimetic mechanical and biological properties is of great interest for regenerative medicine applications. In particular, hydrogels are a promising class of biomaterials due to their high water content, which mimics that of natural tissues. We have synthesized a hydrophilic biodegradable polymer, designated poly(glucose malate)methacrylate (PGMma), which is c...

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