Results 1 to 10 of about 5,993 (161)

Novel sterol-spiropyran derivatives: synthesis and photoactivity in Langmuir monolayers [PDF]

open access: yesScientific Reports
We describe the synthesis of novel sterol-spiropyran conjugates based on either cholesterol or ergosterol and designed to easily incorporate in lipid membranes.
Theo Negus   +2 more
doaj   +2 more sources

Photo-Responsive Graphene and Carbon Nanotubes to Control and Tackle Biological Systems [PDF]

open access: yesFrontiers in Chemistry, 2018
Photo-responsive multifunctional nanomaterials are receiving considerable attention for biological applications because of their unique properties. The functionalization of the surface of carbon nanotubes (CNTs) and graphene, among other carbon based ...
Francesca Cardano   +4 more
doaj   +3 more sources

A Rationally Designed Reversible ‘Turn-Off’ Sensor for Glutathione [PDF]

open access: yesBiosensors, 2017
γ-Glutamyl-cysteinyl-glycine (GSH) plays a critical role in maintaining redox homeostasis in biological systems and a decrease in its cellular levels is associated with diseases.
Sabrina Heng   +3 more
doaj   +3 more sources

Bridging light and sound: A spironaphtopyran-rhodamine dyad with high-contrast photoswitching between fluorescence and photoacoustic signal [PDF]

open access: yesPhotoacoustics
: Fluorescence and photoacoustic imaging are complementary modalities that provide distinct advantages for biological imaging: fluorescence microscopy offers high sensitivity and resolution, while photoacoustic imaging enables deeper penetration in ...
Nikita Kaydanov   +4 more
doaj   +2 more sources

In Situ Stimuli Transfer in Multi‐Environment Shape‐Morphing Hydrogels Based on the Copolymer Between Spiropyran and Acrylic Acid [PDF]

open access: yesAdvanced Science
Smart hydrogels are considered as close mimics to the functions of biological entities. However, the stimuli‐responsive performance of hydrogels is often limited by the slow diffusion process during water exchange with the surrounding environment.
Liwei Wu   +8 more
doaj   +2 more sources

Synthesis of a 5-Carboxy Indole-Based Spiropyran Fluorophore: Thermal, Electrochemical, Photophysical and Bovine Serum Albumin Interaction Investigations

open access: yesChemosensors, 2020
In this study, we synthesized a spiropyran containing an electron-withdrawing carboxyl group in good yield by condensation of an aromatic aldehyde with enamine indole.
Rodrigo da Costa Duarte   +8 more
doaj   +1 more source

Multiple functionalities of highly conductive and flexible photo- and thermal-responsive colorimetric cellulose films

open access: yesMaterials Research Letters, 2022
Photochromic materials have attracted considerable interest because of their ability to undergo reversible color switching. We report highly conductive and flexible spiropyran-embedded cellulose films with multiple optical and electrical functionalities,
Anky Fitrian Wibowo   +12 more
doaj   +1 more source

Rational design of photo-chromic molecule for constructing polysiloxane-based fluorescent films and anti-counterfeiting

open access: yesMaterials & Design, 2021
Spiropyran stimuli-responsive molecule has been applied in various fields, such as data storage, chemical and biological sensing, catalysts, drug transfer and delivery, due to the distinctive absorption characteristics during the structural isomerization.
Tingxin Yang, Yujing Zuo, Shengyu Feng
doaj   +1 more source

On–off conduction photoswitching in modelled spiropyran-based metal-organic frameworks

open access: yesCommunications Chemistry, 2023
Materials with photoswitchable electronic properties and conductance values that can be reversibly changed over many orders of magnitude are highly desirable.
Mersad Mostaghimi   +5 more
doaj   +1 more source

Investigating Photochromic Behavior of Organic Dyes in Solution Form using Multilevel Factorial Design

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2021
Photochromic compounds, namely spiropyran, spirooxazine, and naphthopyran, have received much attention, because of their high potential applications in various industrial fields.
Najiah Nadir   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy