Results 31 to 40 of about 40,673 (356)

Photopolymerized thermosensitive poly(HPMAlactate)-PEG-based hydrogels : effect of network design on mechanical properties, degradation, and release behavior [PDF]

open access: yes, 2010
Photopolymerized thermosensitive A-B-A triblock copolymer hydrogels composed of poly(N-(2-hydroxypropyl)-methacrylamide lactate) A-blocks, partly derivatizal with methacrylate groups to different extents (10, 20, and 30%) and hydrophilic poly(ethylene ...
Braeckmans, Kevin   +7 more
core   +2 more sources

Photopolymerization of acrylates by enzymatically synthesized PCL based macrophotoinitiator

open access: yeseXPRESS Polymer Letters, 2017
Polycaprolactone based macrophotoinitiator was synthesized via enzymatic ring-opening polymerization by using commercially available Irgacure-2959 as the nucleophilic initiator and Novozyme-435 as the immobilized lipase catalyst.
N. U. Kaya, A. Onen, Y. Guvenilir
doaj   +1 more source

Light Sailboats: Laser driven autonomous microrobots [PDF]

open access: yes, 2012
We introduce a system of light driven microscopic autonomous moving particles that move on a flat surface. The design is simple, yet effective: Micrometer sized objects with wedge shape are produced by photopolymerization, they are covered with a ...
Búzás, Anrdás   +6 more
core   +2 more sources

Doubly Photopolymerized Holographic Sensors

open access: yesACS Sensors, 2021
Holographic sensors are two-dimensional (2D) photonic crystals that diffract narrow-band light in the visible spectrum to quantify analytes in aqueous solutions. Here, a holographic fabrication setup was developed to produce holographic sensors through a doubly polymerization system of a poly-2-hydroxyethyl methacrylate hydrogel film using a pulsed Nd ...
Nan Jiang   +6 more
openaire   +3 more sources

Refractive index evolution of various commercial acrylic resins during photopolymerization

open access: yeseXPRESS Polymer Letters, 2018
A set of commercial (meth)acrylic resins was photopolymerized under identical irradiation conditions and evolution of their refractive index was monitored as a function of double bond conversion.
F. Aloui   +3 more
doaj   +1 more source

Fabrication of micro-structures for optically driven micromachines using two-photon photopolymerization of UV curing resins

open access: yes, 2008
Two-photon photopolymerization of UV curing resins is an attractive method for the fabrication of microscopic transparent objects with size in the tens of micrometers range.
Deitz D   +8 more
core   +1 more source

Enzymatic Cross-Linking of Dynamic Thiol-Norbornene Click Hydrogels [PDF]

open access: yes, 2019
Enzyme-mediated in situ forming hydrogels are attractive for many biomedical applications because gelation afforded by enzymatic reactions can be readily controlled not only by tuning macromer compositions, but also by adjusting enzyme kinetics.
Hudson, Britney N.   +3 more
core   +2 more sources

Polymer-graphene composites by photocuring of a system containing benzophenone macromer [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
Formulations incorporating benzophenone oligodimethacrylate (BP-DMA) and graphene structures (graphene oxide/GO, reduced graphene oxide/RGO) were exposed to UV/vis irradiation or femtosecond laser beam to achieve hybrid composites.
Jitaru Florentina   +4 more
doaj   +1 more source

Layered Fabrication of Branched Networks Using Lindenmayer Systems [PDF]

open access: yes, 2007
A current challenge impeding the growth of bone tissue engineering is the lack of functional scaffolds of geometric sizes greater than 10mm due to the inability of cells to survive deep within the scaffold.
Harris, C.   +4 more
core   +1 more source

Photopolymerization-Induced Polymersome Rupture [PDF]

open access: yesLangmuir, 2019
Poly(butadiene)- b-poly(ethylene oxide) (PBut2.5- b-PEO1.3) giant polymersomes were prepared using an emulsion-centrifugation method. The impact of a fast decrease of the osmotic pressure inside the lumen of giant PBut- b-PEO vesicles was studied by confocal microscopy. This osmotic imbalance was created by performing the photoinduced polymerization of
Sophie C. Larnaudie   +4 more
openaire   +2 more sources

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