Results 21 to 30 of about 15,963 (212)

Near-infrared photoresponsive drug delivery nanosystems for cancer photo-chemotherapy

open access: yesJournal of Nanobiotechnology, 2020
Drug delivery systems (DDSs) based on nanomaterials have shown a promise for cancer chemotherapy; however, it remains a great challenge to localize on-demand release of anticancer drugs in tumor tissues to improve therapeutic effects and minimize the ...
Xiaoying Wang   +5 more
doaj   +1 more source

Efficient light-induced phase transitions in halogen-bonded liquid crystals [PDF]

open access: yes, 2016
Here, we present a new family of light-responsive, fluorinated supramolecular liquid crystals (LCs) showing efficient and reversible light-induced LC-to-isotropic phase transitions.
Fernandez-Palacio F.   +8 more
core   +1 more source

Recent Developments in Synthesis and Photocatalytic Applications of Carbon Dots [PDF]

open access: yes, 2020
The tunable photoluminescent and photocatalytic properties of carbon dots (CDs) via chemical surface modification have drawn increased attention to this emerging class of carbon nanomaterials.
Boonsith, Suthida   +4 more
core   +1 more source

Light‐Fueled Hydrogel Actuators with Controlled Deformation and Photocatalytic Activity

open access: yesAdvanced Science, 2022
Hydrogel actuators have shown great promise in underwater robotic applications as they can generate controllable shape transformations upon stimulation due to their ability to absorb and release water reversibly.
Pengyu Chen   +11 more
doaj   +1 more source

New Photoresponses of Phycomyces [PDF]

open access: yesPlant Physiology, 1973
The influence of light on asexual fruiting and mycelial growth of Phycomyces blakesleeanus Burgeff was studied by means of fruiting body counts and size measurements in cultures on solid media under varied incubation conditions. Five types of photoresponses were shown by ATCC Strain 8743a: (a) photoinduction of giant sporangiophores; (b) interference ...
openaire   +2 more sources

Recent Progress in Azopyridine-Containing Supramolecular Assembly: From Photoresponsive Liquid Crystals to Light-Driven Devices

open access: yesMolecules, 2022
Azobenzene derivatives have become one of the most famous photoresponsive chromophores in the past few decades for their reversible molecular switches upon the irradiation of actinic light.
Hao Ren, Peng Yang, Haifeng Yu
doaj   +1 more source

Photopolarization of Fucus zygotes is determined by time sensitive vectorial addition of environmental cues during axis amplification [PDF]

open access: yes, 2015
Fucoid zygotes have been extensively used to study cell polarization and asymmetrical cell division. Fertilized eggs are responsive to different environmental cues (e.g., light, gravity) for a long period before the polarity is fixed and the cells ...
Beeckman, Tom   +2 more
core   +2 more sources

A photoresponsive glycosidase mimic

open access: yesChemical Communications, 2014
Azobenzene-3,3'-dicarboxylic acid exists in photoisomerizable (E) and (Z)-forms. Deprotonation of the carboxylic acid groups from the (E)-form occurs simultaneously, whereas in the (Z)-form it occurs in a stepwise fashion. The mono anionic form of the (Z)-isomer acts as a glycosidase mimic that proceeds through a general acid-general base catalytic ...
Mousumi, Samanta   +2 more
openaire   +3 more sources

Halogen bonding stabilizes a cis-azobenzene derivative in the solid state: A crystallographic study [PDF]

open access: yes, 2017
Crystals of trans- and cis-isomers of a fluorinated azobenzene derivative have been prepared and characterized by single-crystal X-ray diffraction. The presence of F atoms on the aromatic core of the azobenzene increases the lifetime of the metastable ...
Fernandez-Palacio F.   +6 more
core   +1 more source

Controlled Synthesis and Photoresponsive Properties of Spiropyran End-Functionalized Poly(vinyl ether)s

open access: yesCrystals, 2022
Due to the need to develop smart materials for a variety of applications such as catalysts and drug delivery, the development of photoresponsive polymers is receiving increasing attention.
Jin Motoyanagi   +2 more
doaj   +1 more source

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