نتایج جستجو برای: biodegradable polymers

تعداد نتایج: 81074  

2016
D. Bradshaw

Herein, we report the synthesis and characterization of nanospheres of a biodegradable zinc-imidazolate polymers (ZIPs) as a proof-of-concept delivery vehicle into human brain endothelial cells, the main component of the blood-brain barrier (BBB). The ZIP particles can readily encapsulate functional molecules such as fluorophores and inorganic nanoparticles at the point of synthesis producing s...

2013
José Maria Rodrigues da Luz Sirlaine Albino Paes Mateus Dias Nunes Marliane de Cássia Soares da Silva Maria Catarina Megumi Kasuya

Growing concerns regarding the impact of the accumulation of plastic waste over several decades on the environmental have led to the development of biodegradable plastic. These plastics can be degraded by microorganisms and absorbed by the environment and are therefore gaining public support as a possible alternative to petroleum-derived plastics. Among the developed biodegradable plastics, oxo...

Journal: :Trends in biotechnology 1998
B S Kim D J Mooney

Tissue engineering may provide an alternative to organ and tissue transplantation, both of which suffer from a limitation of supply. Cell transplantation using biodegradable synthetic extracellular matrices offers the possibility of creating completely natural new tissues and so replacing lost or malfunctioning organs or tissues. Synthetic extracellular matrices fabricated from biocompatible, b...

2016
Aitor Larrañaga

Biodegradable poly(α-hydroxyacids) have gained increasing interest in the biomedical field for their use as cell microcarriers thanks to their biodegradability, biocompatibility, tunable mechanical properties/degradation rates and processability. The synthesis of these poly(α-hydroxyacids) can be finely controlled to yield (co)polymers of desired mechanical properties and degradation rates. On ...

2004
Sundararajan V Madihally Aliakbar Moshfeghian

Introduction: Tissue engineering provides an approach for generating functionally replaceable tissue parts. Biodegradable scaffolds are used to support and guide the in-growth of cells. The idea is that the scaffolding material eventually disappears leaving only the necessary healthy tissue in a topologically required form (1,2). While numerous biodegradable polymers have been investigated as c...

Journal: :Advanced drug delivery reviews 2004
Y Lu S C Chen

This paper presents state-of-the-art micro and nano-fabrication techniques for biodegradable polymers. Replication molding, using a rigid or elastic master, can pattern structures on a polymer surface in a submicron resolution at a low cost. Layer-by-layer rapid prototyping methods are promising in producing controlled release units with complicated geometries, release mechanisms and the abilit...

Today, the economic consumption of biodegradable polymers is of capital importance in many applications. One of the most commonly used biopolymers is polylactic acid (PLA). The printability of the biodegradable film has not been fully investigated. This work tested the printability of polylactic acid (PLA) films and compared the print qualities to common packaging films like low density pol...

2017
Nora-Charlotte Pauli Jana S Petermann Christian Lott Miriam Weber

The increasing amount of plastic littered into the sea may provide a new substratum for benthic organisms. These marine fouling communities on plastic have not received much scientific attention. We present, to our knowledge, the first comprehensive analysis of their macroscopic community composition, their primary production and the polymer degradation comparing conventional polyethylene (PE) ...

Journal: :Compounds 2022

Synthetic polymers and biodegradable biobased are currently the largest class of materials studied used for various applications due to their unique peculiar properties [...]

اصغری جعفر آبادی, محمد, امامقلی, عسگر, حرفه دوست, غلامرضا, ذوالفقاری, داود, صدرایی, سید همایون, صدری, مینو, کاکا, غلامرضا,

Background and Objective: Poly D,L-lactic-co-glycolic acid (PLGA) is known as biodegradable and biocompatible polymer. These polymers have recently received much attention in tissue engineering. The aim of this study was to investigate the biological behavior of the bone marrow stromal cells (BMSCs) in culturing with PLGA nanofibers coated with poly-L-lysine or gelatin. Materials and Methods: I...

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