Sensitized Disequilibration of Water-Soluble Azopolymers. [PDF]
Angew Chem Int Ed EnglDisequilibration by sensitization under confinement (DESC) is a promising strategy for efficient visible‐light‐induced azobenzene E→Z isomerization. In this article, we explored key factors for adapting DESC to azopolymers, eventually achieving efficiencies up to 85% compared to direct excitation and laying the foundation for more complex systems ...
Meteling HJ +4 more
europepmc +6 more sources
Multi-Spiral Laser Patterning of Azopolymer Thin Films for Generation of Orbital Angular Momentum Light [PDF]
Nanomaterials, 2023 Recently, the realization of the spiral mass transfer of matter has attracted the attention of many researchers. Nano- and microstructures fabricated with such mass transfer can be used for the generation of light with non-zero orbital angular momentum ...
Svetlana Khonina +2 more
exaly +4 more sources
A switchable light-responsive azopolymer conjugating protein micropatterns with topography for mechanobiological studies [PDF]
Frontiers in Bioengineering and Biotechnology, 2022 Stem cell shape and mechanical properties in vitro can be directed by geometrically defined micropatterned adhesion substrates. However, conventional methods are limited by the fixed micropattern design, which cannot recapitulate the dynamic changes of ...
Paolo Netti +2 more
exaly +4 more sources
Polarization-Sensitive Patterning of Azopolymer Thin Films Using Multiple Structured Laser Beams [PDF]
Sensors, 2022 The polarization sensitivity of azopolymers is well known. Therefore, these materials are actively used in many applications of photonics. Recently, the unique possibilities of processing such materials using a structured laser beam were demonstrated ...
Alexey P. Porfirev +5 more
doaj +2 more sources
Assessing the stability of azopolymer nanotopography during live-cell fluorescence imaging [PDF]
Frontiers in Bioengineering and BiotechnologyIntroductionPhotomodifiable azopolymer nanotopographies represent a powerful means of assessing how cells respond to rapid changes in the local microenvironment.
Mona H. Abdelrahman +8 more
doaj +2 more sources
Polarization-driven reversible actuation in a photo-responsive polymer composite [PDF]
Nature Communications, 2023 Light-responsive polymers and especially amorphous azopolymers with intrinsic anisotropic and polarization-dependent deformation photo-response hold great promises for remotely controlled, tunable devices.
David Urban +5 more
doaj +2 more sources
Light-induced modulation of viscoelastic properties in azobenzene polymers [PDF]
NanophotonicsPhoto-induced isomerization of azobenzene molecules drives mass migrations in azopolymer samples. The resulting macroscopic directional photo-deformation of the material morphology has found many applications in literature, although the fundamental ...
Chiodini Stefano +4 more
doaj +2 more sources
Photochromic Cholesteric Liquid Crystals via Arylazopyrazole Functionalization of Hydroxypropyl Cellulose. [PDF]
Adv MaterWe produce a new derivative of hydroxypropyl cellulose functionalized with arylazopyrazole side chains and demonstrate its photoswitchable behaviors in dilute and concentrated aqueous solutions, ultimately designing a series of photochromic cholesteric materials that can be photopatterned as write‐erase displays.
Fine SG +5 more
europepmc +2 more sources
Thermocapillary Marangoni Flows in Azopolymers. [PDF]
Materials (Basel), 2020 It is well known that light-induced multiple trans-cis-trans photoisomerizations of azobenzene derivatives attached to various matrices (polymeric, liquid crystalline polymers) result in polymer mass movement leading to generation of surface reliefs. The reliefs can be produced at small as well as at large light intensities.
Miniewicz A +5 more
europepmc +6 more sources
Writing and reading with the longitudinal component of light using carbazole-containing azopolymer thin films [PDF]
Scientific Reports, 2022 It is well known that azobenzene-containing polymers (azopolymers) are sensitive to the polarization orientation of the illuminating radiation, with the resulting photoisomerization inducing material transfer at both the meso- and macroscale. As a result,
Alexey Porfirev +5 more
doaj +2 more sources