Magnetically and biologically active bead-patterned hydrogels.

Light-Addressable Electrodeposition of Magnetically-Guided Cells Encapsulated in Alginate Hydrogels for Three-Dimensional Cell Patterning

This paper describes a light-addressable electrolytic system used to perform an electrodeposition of magnetically-guided cells encapsulated in alginate hydrogels using a digital micromirror device (DMD) for three-dimensional cell patterning. In this system, the magnetically-labeled cells were first manipulated into a specific arrangement by changing the orientation of the magnetic field, and th...

Fabrications and Applications of Stimulus-Responsive Polymer Films and Patterns on Surfaces: A Review

In the past two decades, we have witnessed significant progress in developing high performance stimuli-responsive polymeric materials. This review focuses on recent developments in the preparation and application of patterned stimuli-responsive polymers, including thermoresponsive layers, pH/ionic-responsive hydrogels, photo-responsive film, magnetically-responsive composites, electroactive com...

Patterned paper as a template for the delivery of reactants in the fabrication of planar materials.

This account reviews the use of templates, fabricated by patterning paper, for the delivery of aqueous solutions of reactants (predominantly, ions) in the preparation of structured, thin materials (e.g., films of ionotropic hydrogels). In these methods, a patterned sheet of paper transfers an aqueous solution of reagent to a second phase-either solid or liquid-brought into contact with the temp...

Multiscale electrochemistry of hydrogels embedding conductive nanotubes† †Electronic supplementary information (ESI) available: Alginate/carbon nanotube bead fabrication and optical image, SECM approach curves in benzonitrile, 2D conductivity images, SECM of the tip penetrating inside the bead and Digisim® simulation of cyclic voltammograms obtained at an UME inside a 1% CNT bead. See DOI: 10.1039/c5sc00549c Click here for additional data file.

Photothermal fabrication of microscale patterned DNA hydrogels

This paper introduces a method for fabricating microscale DNA hydrogels using irradiation with patterned light. Optical fabrication allows for the flexible and tunable formation of DNA hydrogels without changing the environmental conditions. Our scheme is based on local heat generation via the photothermal effect, which is induced by light irradiation on a quenching species. We demonstrate expe...