Results 131 to 140 of about 6,930 (295)

Architected Inverse Nacre Hydrogels With High Strength and Crack‐Insensitive Toughness

Advanced Science, EarlyView.
Hydrogels hold promise for biomedical and engineering applications, yet their practical use is fundamentally limited by the strength‐toughness trade‐off and poor fatigue resistance. In this study, a bioinspired inverse nacre architecture constructed via a scalable thermo‐calendering process is introduced, which overcomes these classic limitations ...
Haidi Wu, Qin Su, Cheng Guan, Biwang Pan, Wenjie Hu, Jun Yan, Yifan Feng, Longcheng Tang, Xuewu Huang, Jiefeng Gao, Wancheng Gu   +10 more
wiley   +1 more source

Linear and Nonlinear Wave Propagation in Negative Refraction Meta-materials [PDF]

, 2003
We discuss linear and nonlinear optical wave propagation in a left-handed medium (LHM) or medium of negative refraction (NRM). We use the approach of characterizing the medium response totally by a generalized electric polarization (with a dielectric ...
Shen, Y.R., Baughman, R.H., Agranovich, V.M., Zakhidov, A.A.   +3 more
core  

Bioinspired Morphology‐Decoupled Soft Gripper with Enhanced Bidirectional Grasping Capability

Advanced Science, EarlyView.
Inspired by biological predation, a novel gripper decouples cross‐modal grasping via dual morphological configurations. Synergistically integrating hybrid rigid and soft coupled fingers with a metamaterial palm, the system performs active compliant grasping for static objects and passive cage capture for dynamic targets.
Yedong Huang, Dazhong Yu, Baijin Mao, Fangming Li, Juntian Qu   +4 more
wiley   +1 more source

Time-Resolved Nonlinear Refraction of Indium Tin Oxide at Epsilon Near Zero

, 2017
Using Beam-Deflection measurements we directly measure the temporal dynamics of nonlinear refraction and transmittance of an ITO thin film in the S -near-zero regime, and find a nonlinear index 5000 times that of ...
Pattanaik, Himansu S., Sepehr Benis, Eric W. Van Stryland, Van Stryland, Eric W., Peng Zhao, Hagan, David J., Himansu S. Pattanaik, David J. Hagan, Benis, Sepehr, Zhao, Peng   +9 more
core   +1 more source

Breaking the Bottleneck in Limit of Detection of Surface Refractive Index Sensing by Harnessing Meta‐Waveguide Microring Resonators

Advanced Science, EarlyView.
Mode splitting in meta‐waveguide microring resonators (MWMRs) effectively suppresses baseline drift and measurement noise while maintaining high refractive‐index sensitivity. This reflection‐induced mode splitting strategy enables quantitative detection of ultra‐weak surface perturbations and establishes MWMRs as a robust, drift‐immune platform for ...
Wanxin Li, Jiewen Li, Rui Li, Gina Jinna Chen, Perry Ping Shum, Yi Zou, Ray T. Chen, Yongkang Dong, Xiaochuan Xu   +8 more
wiley   +1 more source

Ultrabroadband and Highly Sensitive Short‐Wave Infrared Molecular Fingerprinting via Acoustic MXene Plasmons

Advanced Science, EarlyView.
Acoustic plasmons in Ti3C2Tx MXene strongly compress infrared electromagnetic fields and enhance light–matter interactions at the nanoscale. This platform couples broadband plasmon excitations with molecular vibrations, enabling simultaneous sensing of high‐ and low‐frequency vibrational modes in ultrathin PMMA and graphene oxide films, and extending ...
Changhoon Park, Jisung Kwon, Nu‐Ri Park, Hyerim Kim, Hyeju Kim, Yury Gogotsi, Chong Min Koo, Myung‐Ki Kim   +7 more
wiley   +1 more source

BIEXCITONIC EFFECT ON TRANSIENT NONLINEAR REFRACTION AND ABSORPTION IN A MAGNETIZED CdS QUANTUM DOTS

, 2011
Transient optical nonlinearities of semiconductor quantum dots in the strongly confined regime are studied, in which the exciton, biexciton and magnetic field effects are taken into account.
SWATI GOYAL, PRANAY K. SEN
core   +1 more source

Discovery of a Potent Fluorescence Polarization Probe for Identifying USP1 Allosteric Inhibitors

Advanced Science, EarlyView.
This study presents the first ubiquitin‐specific protease 1 (USP1) allosteric fluoroprobe and fluorescence polarization assay, enabling the differentiation of allosteric and catalytic site inhibitors. Further, a novel class of tetrahydroisoquinoline‐based USP1 inhibitors is designed, with compound 14a (USP1 IC50 = 29.9 nM) showing strong selectivity ...
Jiawei Cheng, Peipei Wang, Pengfei Wang, Jiamin Wang, Baiyang Li, Daqing Fang, Jian He, Xiaobei Hu, Weijuan Kan, Yubo Zhou, Chunpu Li, Jia Li, Hong Liu   +12 more
wiley   +1 more source

Linear and Nonlinear Optical Properties of Natural Dyes Freestanding Films and Application in Optical Limiting

مجلة علوم ذي قار, 2020
Natural dyes were followed and prepared from a pomegranate, purple carrot, and eggplant peel.  The absorbance spectra was measured in the wavelength range 300-800 nm. The linear properties measurements of the prepared natural dye freestanding films were
Maha A Rahma, Emad A. Mohammed, Haithem L Saadon   +2 more
doaj  

Nonlinear Refraction and Absorption Properties of ZnS Semiconductor Quantum Dots

, 2017
The nonlinear absorption and nonlinear refraction properties of water soluble ZnS semiconductor quantum dots are studied by using Z-scan technique with the action of 400 nm and 532 nm femtosecond laser pulses. The experimental results show that the three
Xi Wen Liu, Heng Yu Tan, Qing Chang
core   +1 more source