Results 71 to 80 of about 1,396,787 (284)

Flexible Sensors for Robotics Tactile Perception: A Review

Advanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

Advanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib, Shan Jiang, Joyce ZX Lee, CW Lim, HL Yeung, Nicki YH Leung, Patrick SC Leung, Ting F Leung, Christine YY Wai   +8 more
wiley   +1 more source

Microring quantum cascade surface emitting lasers

APL Photonics
We miniaturize a vertically coupled in-plane whispering gallery mode cavity incorporating a quantum cascade gain medium, aiming to realize the mid-infrared counterpart to the vertical cavity surface emitting laser.
David Stark, Mattias Beck, Jérôme Faist   +2 more
doaj   +1 more source

Multi-Spectral Quantum Cascade Lasers on Silicon With Integrated Multiplexers

Photonics, 2019
Multi-spectral midwave-infrared (mid-IR) lasers are demonstrated by directly bonding quantum cascade epitaxial gain layers to silicon-on-insulator (SOI) waveguides with arrayed waveguide grating (AWG) multiplexers.
Eric J. Stanton, Alexander Spott, Jon Peters, Michael L. Davenport, Aditya Malik, Nicolas Volet, Junqian Liu, Charles D. Merritt, Igor Vurgaftman, Chul Soo Kim, Jerry R. Meyer, John E. Bowers   +11 more
doaj   +1 more source

Coherently driven ring quantum cascade lasers

, 2022
Ring quantum cascade lasers generate self-starting frequency combs and dissipative cavity solitons. We present a reengineered ring resonator with an evanescent wave directional coupler that allows coherent control over laser state and enhances power ...
Kazakov D., Capasso F., Brambilla M., Piccardo M., Zhi Y., Schwarz B., Columbo L., Beiser M., Letsou T. L.   +8 more
core  

Development of high-speed directly-modulated DFB and DBR lasers with surface gratings [PDF]

, 2011
The conventional distributed feedback and distributed Bragg reflector edge-emitting lasers employ buried gratings, which require two or more epitaxial growth steps.
M. Dumitrescu, Sek, G., REITHMAIER J. P., EISENSTEIN G., KARINEN J., P. Bardella, P. Melanen, MELANEN P., GREADY D., SEK G., G. Sek, O. Parillaud, S. Afzal, Laakso, A., J. Telkkälä, Reithmaier J.-P., Afzal, S., P. Uusimaa, Montrosset, Ivo, D. Gready, PARILLAUD O., Melanen, P., Bardella, Paolo, Vallone, Marco Ernesto, VIHERIÄLÄ J., KAMP M., Telkkälä, J., J.-P. Reithmaier, J. Karinen, Parillaud, O., Dumitrescu, M., DUMITRESCU M., Gready, D., M. Vallone, M. Krakowski, G. Eisenstein, Uusimaa, P., Viheriälä, J., A. Laakso, I. Montrosset, Eisenstein, G., J. Viheriälä, Karinen, J., AFZAL S., LAAKSO A., TELKKÄLÄ J., UUSIMAA P., Kamp, M., M. Kamp   +48 more
core   +1 more source

Self‐Sustaining Lactate Depletion Nanoplatform Remodels Tumor Microenvironment and Augments Synergistic Photodynamic/Photothermal/Chemodynamic/Starvation Therapy for Eradication of Colon Cancer

Advanced Science, EarlyView.
The HILA nanoplatform integrates HMnO2, LOX, and ICG to orchestrate multimodal therapy (starvation, chemodynamic, photodynamic, and photothermal) for achieving efficient colon cancer eradication. The established HMnO2‐LOX catalytic cycle continuously consumes lactate, acidifys microenvironment, relieves hypoxia, and generats reactive oxygen species ...
Yu‐E. Wang, Shibo Zhao, Wenying Wu, Zhiwei Duan, Yuan Li, Xiangyu Zeng, Liang Hong, Yan Chen, Ling Tao, Kewu Zeng, Chaoda Xiao, Xiangchun Shen   +11 more
wiley   +1 more source

High temperature operation of short wavelength InAs-based quantum cascade lasers

AIP Advances, 2012
InAs/AlSb quantum cascade lasers emitting at 3.06 and 3.22 μm at room temperature has been studied. The lasers with high reflection coating on back facets operated in pulse mode up to 400 and 423 K, respectively.
P. Laffaille, J. C. Moreno, R. Teissier, M. Bahriz, A. N. Baranov   +4 more
doaj   +1 more source

A Disulfide‐Sticker Strategy for Marine Adhesive Coatings: From Deciphering Self‐Assembly Mechanism to Functional Application in Hair Regeneration

Advanced Science, EarlyView.
A disulfide‐sticker strategy, coupled with Ca2+ coordination, drives the hierarchical self‐assembly of a recombinant scallop adhesive protein into fishnet‐like nanostructures, affording a coating with versatile wet adhesion and intrinsic antioxidant activity. This biocompatible coating markedly promotes hair regeneration by activating follicular niches,
Lulu Wang, Juan Yang, Xin Jiang, Zhanghui Zheng, Hongyu Wei, Na Li, Xiangqiang Chu, Weizhi Liu   +7 more
wiley   +1 more source

Harmonizing Rigidity and Flexibility: Embedding COF Quantum Dots Into Extracellular Matrix Gel as Carbon Monoxide Depot for Acoustically Triggered Time‐Programmable Anti‐Infective Therapy

Advanced Science, EarlyView.
A rigid‑flexible integrated CO depot is engineered by embedding rigid COFQDs into a flexible ECM gel network. The rigid framework enables high‑capacity CO storage and sonodynamic bacterial killing, while the flexible ECM gel controls sustained CO release, collectively eradicating multidrug‑resistant infection and promoting scarless healing.
Baohong Sun, Fang Han, Chunxiao Zhu, Zhiyuan Yang, Haoru Wang, Jinpei Mei, Jie Chen, Jingwen Zhu, Zihan Bo, Taju Wu, Xiaogang Zhou, Tao Ma, Yutian Su, Youhui Lin   +13 more
wiley   +1 more source