Photoreversible enzyme solubility

Photoreversible dendritic organogel.

A photoreversible organogel made from dendrons was reported.

Photoreversible surfaces to regulate cell adhesion.

We report the development of a photoreversible cell culture substrate. We demonstrate the capacity to modify the adhesivity of the substrate using light, altering its capacity to support cell growth. Polyelectrolyte multilayers (PEMs) were used to produce tunable substrates of different thickness and matrix stiffness, which have different intrinsic capacities to support cell adhesion and surviv...

Enhanced enzymatic activity through photoreversible conformational changes.

The interaction of a light-responsive surfactant with lysozyme at pH 5.0 has been investigated as a means to control protein structure and enzymatic activity with light illumination. The cationic azobenzene surfactant undergoes a reversible photoisomerization upon exposure to the appropriate wavelength of light, with the visible-light (trans) form being more hydrophobic and, thus, inducing a gr...

Photoreversible Patterning of Biomolecules within Click-Based Hydrogels**

Photoreversible calcium fluxes induced by phytochrome in oat coleoptile cells.

The chromometallic dye murexide was used to measure photoreversible Ca fluxes in apical tips of etiolated oat coleoptiles and in suspension cultures of protoplasts derived from the coleoptile segments. Phytochrome presence in the protoplasts was indicated by a repeatably photoreversible DeltaA(725 - 800 nm) of >0.001 A centimeters(-1), recorded on a dual wavelength spectrophotometer. Concentrat...