Results 41 to 50 of about 40,673 (356)

Multi-material 4D printing employing stimuli-responsive polymer composites using vat photopolymerization

Virtual and Physical Prototyping
Vat photopolymerization presents a versatile platform for realising intricate 4D printed structures with dynamic functionalities. This study examines the use of the vat photopolymerization technique for 4D printing employing stimuli-responsive polymers ...
Fahad Alam, Nazek El-Atab
doaj   +1 more source

Acetoacetate based thermosets prepared by dual-Michael addition reactions [PDF]

, 2019
A novel set of dual-curable multiacetoacetate-multiacrylate-divinyl sulfone ternary materials with versatile and manipulable properties are presented.
Fernández Francos, Xavier, Konuray, Ali Osman, Ramis Juan, Xavier, Serra Albet, Maria Àngels   +3 more
core   +2 more sources

Monomers for adhesive polymers, 18. Synthesis, photopolymerization and adhesive properties of polymerizable α-phosphonooxy phosphonic acids

Designed Monomers and Polymers, 2017
Four polymerizable α-phosphonooxy phosphonic acids 7a, 7b, 9 and 16 were synthesized in seven steps. They were characterized by 1H, 13C and 31P NMR spectroscopy and by high-resolution mass spectroscopy.
Yohann Catel, Cédéric Dellsperger, Norbert Moszner   +2 more
doaj   +1 more source

Controlling thermal reactivity with different colors of light [PDF]

, 2017
The ability to switch between thermally and photochemically activated reaction channels with an external stimulus constitutes a key frontier within the realm of chemical reaction control.
Barner-Kowollik, Christopher, Du Prez, Filip, Houck, Hannes   +2 more
core   +4 more sources

Hydrogels in Stereolithography [PDF]

, 2005
The use of stereolithography (SL) for fabricating complex three-dimensional (3D) tissue engineered scaffolds of aqueous poly(ethylene glycol) (PEG) hydrogel solutions is described.
Arcaute, Karina, Mann, Brenda, Ochoa, Luis, Wicker, Ryan   +3 more
core   +1 more source

New Phosphine Oxides as High Performance Near- UV Type I Photoinitiators of Radical Polymerization

Molecules, 2020
Carbazole structures are of high interest in photopolymerization due to their enhanced light absorption properties in the near-UV or even visible ranges.
Céline Dietlin, Thanh Tam Trinh, Stéphane Schweizer, Bernadette Graff, Fabrice Morlet-Savary, Pierre-Antoine Noirot, Jacques Lalevée   +6 more
doaj   +1 more source

Three-dimensional femtosecond laser nanolithography of crystals [PDF]

, 2019
Nanostructuring hard optical crystals has so far been exclusively feasible at their surface, as stress induced crack formation and propagation has rendered high precision volume processes ineffective. We show that the inner chemical etching reactivity of
A Banerjee, Airán Ródenas, Ajoy K. Kar, DE Zelmon, DR Smith, E Yablonovitch, EG Gamaly, EN Glezer, G Zhou, Giacomo Corrielli, J Basterfield, J Bauer, J Fischer, J Schindelin, JC Knight, JD Joannopoulos, JG Rarity, JK Gansel, JM Dudley, K Jain, K McGarvey-Lechable, LR Meza, M Deubel, M Hermatschweiler, M Straub, MD Henry, Min Gu, P Russell, Petra Paiè, RA Shelby, RJA Francis-Jones, Roberto Osellame, S John, S Juodkazis, S Juodkazis, S Maruo, S Wong, Sajeev John, T Clausnitzer, TJ Kippenberg   +39 more
core   +2 more sources

High‐Resolution and Real‐Time In Situ Generation of Cellular Spheroids by Laser‐Assisted Bioprinting for Guided Microvascularization

Advanced Functional Materials, EarlyView.
Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin, Katharina Wulz, Clotilde Jugie, Marie‐Laure Stachowicz, Shane Fennell, Aurélien Mazet, Malou Lea, Nathalie Dusserre, Jean‐Christophe Fricain, Hugo Oliveira   +9 more
wiley   +1 more source

Material and Process Parameters that Affect Accuracy in Stereolithography [PDF]

, 1993
Experimental real time linear shrinkage rate measurements simulating stereolithography are used in an analysis of shrinkage during line drawing in stereolithography.
Chartoff, Richard P., Flach, Lawrance, Weissman, Peter   +2 more
core   +1 more source

Combinatorial biomaterials discovery strategy to identify new macromolecular cryoprotectants [PDF]

, 2020
Cryoprotective agents (CPAs) are typically solvents or small molecules, but there is a need for innovative CPAs to reduce toxicity and increase cell yield, for the banking and transport of cells.
Gibson, Matthew I., Ishibe, Toru, Mathers, Robert T., Murray, Kathryn, Stubbs, Christopher D.   +4 more
core   +2 more sources