Results 131 to 140 of about 98,956 (351)

Chirality induced by supramolecular self-assembly of fluorinated π-conjugated carbon dots for bright circularly polarized electroluminescent light-emitting diodes

open access: yesNature Communications
Circularly polarized light-emitting diodes hold great promise for advanced photonic applications such as three-dimensional displays, quantum information processing, and optical spintronics.
Yuxin Shi   +8 more
doaj   +1 more source

Liquid Crystalline Elastomers in Soft Robotics: Assessing Promise and Limitations

open access: yesAdvanced Robotics Research, EarlyView.
Liquid crystalline elastomers (LCEs) are programmable soft materials that undergo large, anisotropic deformation in response to external stimuli. Their molecular alignment encodes directional actuation in a monolithic structure, making them long‐standing candidates for soft robotic systems.
Justin M. Speregen, Timothy J. White
wiley   +1 more source

Biomass Photochemistry Xiii: Pre-irradiated Lignin From Pinus Radiata D. Don And Its Degradation By Ligninase And Horse-radish Peroxidase

open access: yes, 2015
The degradation of dioxane-lignin from Pinus radiata D. Don caused by ligninase and by horse-radish peroxidase under photochemical pretreatment was studied.
Baeza J.   +4 more
core   +1 more source

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

open access: yesAdvanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu   +6 more
wiley   +1 more source

Dynamic identification of reactive iron-oxo species in heterogeneous fenton-like reaction via operando stopped-flow IR spectroscopy

open access: yesNature Communications
Heterogeneous high-valent iron-oxo species (FeIV = O) are known as reactive oxygen species with specific oxygen-atom transfer capabilities, yet the characterization of their presence and kinetic behaviors in Fenton or Fenton-like systems remains ...
Qi Zhao   +7 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

open access: yesAdvanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou   +4 more
wiley   +1 more source

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

open access: yesAdvanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang   +5 more
wiley   +1 more source

Synthesis and characterization of tungsten disulfide-graphene oxide nanocomposite

open access: yesBMC Chemistry
Two-dimensional (2D) materials, such as tungsten disulfide (WS2) and graphene oxide (GO), have garnered significant attention. This is due to their unique physicochemical properties and potential applications in catalysis, electronics, and phototherapy ...
Riham M. A. El-Ghany   +4 more
doaj   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

open access: yesAdvanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim   +13 more
wiley   +1 more source

Photochemistry

open access: yes
This periodical review provides a critical analysis of photo-induced processes relevant to a wide range of academic and commercial disciplines. Reflecting current interests in chemistry, physics, biology and technology, this book serves as a primary ...

core   +1 more source

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