Results 111 to 120 of about 6,070 (236)

Synthesis and Acid-Responsiveness of an Insulated π-Conjugated Polymer Containing Spiropyrans in Its Backbone

open access: yesMolecules, 2019
A π-conjugated polymer containing spiropyrans (SPs), which could be almost completely converted to protonated merocyanines (MCH+) and back to the SP form by adding an acid and a base, respectively, was developed.
Hiromichi V. Miyagishi   +3 more
doaj   +1 more source

Micro-bioreactors controlled with photonic ionogel actuators [PDF]

open access: yes, 2012
In the recent years, advances in micro-fluidic techniques for environmental applications have brought wide opportunities for improving of the capacity to monitor water quality. However, the development of fully integrated micro-fluidic devices capable of
Benito-Lopez, Fernando   +3 more
core   +1 more source

Light‐Modulated Humidity Sensing in Spiropyran Functionalized MoS2 Transistors

open access: yesSmall, Volume 22, Issue 25, 4 May 2026.
A hybrid material combining molybdenum disulfide (MoS2) and spiropyran for humidity and light responsiveness is developed. Ultraviolete (UV) irradiation tunes the wettability of MoS2 decorated by spiropyran, enhancing the humidity sensitivity. Water adsorption and photochromic doping significantly alter the optoelectronic properties of MoS2 flakes ...
Adrián Tamayo   +4 more
wiley   +1 more source

Photoresponsive Spiropyran Composite Hydrogel for Uranium Adsorption in Aqueous Solution

open access: yesDonghua Ligong Daxue Xuebao. Ziran Kexue Ban
[Objective] The efficient and green recovery of uranium from nuclear wastewater is crucial for the sustainable development of nuclear energy. Traditional adsorbents rely on chemical eluents and energy-intensive desorption processes, which can lead to ...
LIU Shujuan   +6 more
doaj   +1 more source

Crystal structure determination as part of an undergraduate laboratory experiment: 1′,3′,3′-trimethylspiro[chromene-2,2′-indoline] and 1′,3′,3′-trimethyl-4-[(E)-(1,3,3-trimethylindolin-2-ylidene)methyl]spiro[chroman-2,2′-indoline]

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The crystal structures of the title compounds, C19H19NO and C31H34N2O, were determined as part of an experiment in an undergraduate teaching laboratory that demonstrates the relationship between molecular structure and function.
Joseph O. S. Beckett   +5 more
doaj   +1 more source

A merocyanine-based conductive polymer [PDF]

open access: yes, 2013
We report the first example of a conducting polymer with a merocyanine incorporated into the polymer backbone by electropolymerisation of a spiropyran moiety covalently linked between two alkoxythiophene units.
Byrne, Robert   +9 more
core   +2 more sources

Photoacid‐Mediated Controllable Gelation in a Chemical Reaction Cycle

open access: yesChemSystemsChem, Volume 8, Issue 3, May 2026.
Visible‐light‐driven photoacid enables programmable hydrogelation in a dissipative CRN: irradiation intensity tunes sol‐gel timing and mechanics via in‐situ formaldehyde formation from hexamethylenetetramine. ABSTRACT We explore the use of a photoacid in a chemical reaction cycle, which allows for the controlled sol‐to‐gel transition of a saccharide ...
Alvaro Lopez‐Acosta   +3 more
wiley   +1 more source

Stimuli-responsive materials as sensors and actuators in microfluidic devices [PDF]

open access: yes, 2014
The integration of stimuli-responsive materials into microfluidic systems can provide a means for external control over fluid flow and can reduce the overall complexity of microfluidic devices.
Diamond, Dermot   +2 more
core  

Beads, boats and switches: making things happen with molecular photoswitches [PDF]

open access: yes, 2009
In this paper we present recent results obtained with a stimulus-responsive materials based on the photo-switchable behaviour exhibited by spiro-cyclic derivatives.
Benito-Lopez, Fernando   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy