Results 271 to 280 of about 17,196,143 (353)

Biodegradable polymersomes for controlled drug release

Journal of Controlled Release, 2008
Hydrophilic fluorescein isothiocyanate-dextran (FD, mol. weight 4000 g/mol) could be readily incorporated in polymersomes (PS) made of different amphiphilic biodegradable block copolymers based on PEG-PDLLA, PEG-PCL, and PEG-PTMC. The FD release from these polymersomes in PBS at 37 °C was complete within approximately 10 days.
Zhou, W., Feijen, Jan
openaire   +3 more sources

Chitosan based hybrid hydrogels for drug delivery: Preparation, biodegradation, thermal, and mechanical properties

Polymers for Advanced Technologies, 2022
In the present paper, biodegradable hybrid hydrogels were prepared by using chitosan as a natural polymer and polyurethane containing azomethine as a synthetic polymer for the drug delivery application for 5‐fluorouracil.
Musa Kamaci, I. Kaya
semanticscholar   +1 more source

A biodegradable filament for controlled drug delivery

Journal of Controlled Release, 2009
Biodegradable filaments (diameters of 250-300 microm) for the controlled delivery of dexamethasone or levofloxacin are described. Filaments are prepared by wet-spinning solutions of poly(lactide-co-glycolide) (PLGA) and drug dissolved in dimethyl sulfoxide (DMSO) into a coagulation bath of water.
Mack, Brendan C., Wright, Kenneth W., Davis, Mark E.   +2 more
openaire   +3 more sources

Controlled release of vancomycin from biodegradable microcapsules

Journal of Microencapsulation, 2001
Poly D,L-lactic acid (PLA) and its copolymers with glycolide PLGA 90:10 and 70:30 were polymerized under various conditions to yield polymers in the molecular weight range 12000-40000 daltons, as determined by gel permeation chromatography. Vancomycin hydrochloride was the hydrophilic drug of choice for the treatment of methicillin resistant ...
Ozalp, Y, Ozdemir, N, Kocagoz, S, Hasırcı, Vasıf Nejat   +3 more
openaire   +3 more sources

Synthetic biodegradable polyesters for implantable controlled-release devices

Expert Opinion on Drug Delivery, 2022
Implantable devices can be designed to release drugs to localized regions of tissue at sustained and reliable rates. Advances in polymer engineering have led to the design and development of drug-loaded implants with predictable, desirable release profiles.
Jinal U. Pothupitiya, Christy Zheng, W. Mark Saltzman   +2 more
openaire   +2 more sources

Controlled Synthesis of Biodegradable Polyesters

2001
The application of new initiators for the ring-opening polymerization of cyclic esters has markedly improved the macromolecular engineering of biodegradable polyesters. A wide variety of complex macromolecular architectures can nowadays be prepared using these initiators.
Dijkstra, Pieter J., Zhong, Zhiyuan, Stevels, Wim M., Feijen, Jan   +3 more
openaire   +2 more sources

Biodegradation kinetics of ammonium enriched food waste digestate compost with biochar amendment.

Bioresource Technology, 2021
High concentration of NH4+-N in food waste digestate (FWD) produced from biological treatment of food waste is considered as a major threat on the composting process resulting in production of immature compost.
M. K. Manu, Chen Wang, Dongyi Li, Sunita Varjani, Yunjie Xu, Narsi Ladumor, Michael Lui, Jun Zhou, J. Wong   +8 more
semanticscholar   +1 more source

Biodegradation of paper waste under controlled composting conditions.

Waste Management, 2009
The presence of paper in municipal solid waste (MSW) interferes with the efficiency of composting plants. The compost feedstock to these plants is between 12% and 27% paper on a dry weight basis, with an initial C:N ratio ranging from 32:1 to 57:1. Tests of the last aerobic biodegradability (LAB) of the type of paper present in paper and cardboard ...
J. V. L. Alvarez, M. A. Larrucea, P. Bermúdez, B. L. Chicote   +3 more
semanticscholar   +3 more sources

Injectable biodegradation-visual self-healing citrate hydrogel with high tissue penetration for microenvironment-responsive degradation and local tumor therapy.

Biomaterials, 2020
Local tumor therapy through injectable biodegradable hydrogels with controlled drug release has attracted much attention recently, due to their easy operation, low side effect and efficiency.
Min Wang, Mi Chen, Wen Niu, Dagogo Dorothy Winston, Wei Cheng, B. Lei   +5 more
semanticscholar   +1 more source

Biodegradable Nanobowls with Controlled Dents

ACS Macro Letters
Nanobowls show promising potential in biomedical applications, such as bioimaging, cargo delivery, and disease theranostics, due to their unique concave structure and interior cavities. However, the lack of biodegradable nanobowls with manipulable size (especially the dent size) still exists as an obstacle for their in-depth exploration and application
Jinhui Jiang, Min Sun, Qianxi Gu, Shangning Liu, Hui Sun, Zhen Fan, Yunqing Zhu, Jianzhong Du   +7 more
openaire   +2 more sources