Results 41 to 50 of about 6,865 (206)

Injectable thermosensitive chitosan/gelatin hydrogel for dental pulp stem cells proliferation and differentiation [PDF]

open access: yesBioImpacts, 2023
Introduction: Biocompatible and biodegradable scaffolds based on natural polymers such as gelatin and chitosan (CS) provide suitable microenvironments in dental tissue engineering.
Mohammad Samiei   +5 more
doaj   +1 more source

Dually sensitive dextran-based micelles for methotrexate delivery [PDF]

open access: yes, 2017
Temperature-sensitive polymeric micelles were prepared from dextran grafted with poly(N-isopropylacrylamide) (PNIPAAm) or polyethylene glycol methyl ether (PEGMA) via controlled radical polymerization and evaluated as delivery systems of the anticancer ...
Alexander, Cameron   +5 more
core   +1 more source

PNIPAAm-grafted thermoresponsive microcarriers: Surface-initiated ATRP synthesis and characterization

open access: yesMaterials Science and Engineering: C, 2013
In this study, we developed novel thermoresponsive microcarriers as a powerful tool for cell culture and tissue engineering applications. For this purpose, two types of commercially available spherical microparticles (approximately 100 μm in diameter), dextran-based Sephadex® and vinyl acetate-based VA-OH (Biosynth®), were used and themoresponsive poly(
Cakmak, Soner   +2 more
openaire   +3 more sources

Structurally isolated photoactuation of graphene-mixed temperature-responsive hydrogels in soft-rigid series structure

open access: yesROBOMECH Journal, 2019
This paper presents fabrication and actuation methods for a soft microrobot with a hybrid structure composed of soft microactuators and a rigid supporting body.
Tomoki Watanabe   +2 more
doaj   +1 more source

L-Lysine-Modified pNIPAm-co-GMA Copolymer Hydrogel for pH- and Temperature-Responsive Drug Delivery and Fluorescence Imaging Applications

open access: yesGels, 2023
The development of dual-stimuli-responsive hydrogels attracts much research interest owing to its unique stimuli-responsive characteristics. In this study, a poly-N-isopropyl acrylamide-co-glycidyl methacrylate-based copolymer was synthesized by ...
Madhappan Santhamoorthy   +6 more
doaj   +1 more source

Modeling lower critical solution temperature behavior of associating polymer brushes with classical density functional theory [PDF]

open access: yes, 2013
We study the lower critical solution temperature (LCST) behavior of associating polymer brushes (i.e., poly(N-isopropylacrylamide)) using classical density functional theory.
Bennett D. Marshall   +4 more
core   +1 more source

Dynamic in situ chromosome immobilisation and DNA extraction using localized poly(N-isopropylacrylamide) phase transition [PDF]

open access: yes, 2011
A method of in situ chromosome immobilisation and DNA extraction in a microfluidic polymer chip was presented. Light-induced local heating was used to induce poly(N-isopropylacrylamide) phase transition in order to create a hydrogel and embed a single ...
Eriksen, Johan   +7 more
core   +2 more sources

PNIPAAm-based biohybrid injectable hydrogel for cardiac tissue engineering

open access: yesActa Biomaterialia, 2016
Injectable biomaterials offer a non-invasive approach to deliver cells into the myocardial infarct region to maintain a high level of cell retention and viability and initiate the regeneration process. However, previously developed injectable matrices often suffer from low bioactivity or poor mechanical properties. To address this need, we introduced a
Ali Navaei   +7 more
openaire   +2 more sources

Suspension Culture of Mammalian Cells Using Thermosensitive Microcarrier that Allows Cell Detachment without Proteolytic Enzyme Treatment

open access: yesCell Transplantation, 2010
Microcarriers are used to expand anchorage-dependent cells in large-scale suspension bioreactors. Proteolytic enzyme treatment is necessary to detach cells cultured on microcarriers for cell harvest or scale-up, but the enzyme treatment damages the cells
Hee Seok Yang   +4 more
doaj   +1 more source

Effect of surfactant concentration on the responsiveness of a thermoresponsive copolymer/surfactant mixture with potential application on Smart foams formulations

open access: yes, 2017
We studied a system formed by a mixture of a thermoresponsive negatively charged graft copolymer (Alg-g-PNIPAAm) with a brush-type structure, and an oppositely charged surfactant (DTAB), in bulk and at the air-solution interface. We performed experiments
Cuenca, Ezequiel   +5 more
core   +1 more source

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