Results 111 to 120 of about 14,587 (250)

Altaid Plateau forced Late Triassic Earth’s freezing state

Communications Earth & Environment
Late Triassic was critical in paving the age of dinosaurs and emergence of modern ecosystems. The end-Triassic mass extinction ( ~201 Ma) was triggered by warming, linked to massive volcanism, yet evidence suggests freezing conditions prevailed before ...
Qigui Mao, Meng Zhang, Zhong-Qiang Chen, Michael J. Benton, Dunfeng Xiang, Chihao Chen, Jun Hu, Qingqing Qiao, Songjian Ao, Dongfang Song, Rui Li, Hao Wang, Miao Sang, Zhou Tan, Yuangeng Huang, Zhen Guo, Ziheng Li, Xincheng Qiu, Wenjiao Xiao   +18 more
doaj   +1 more source

Silica Waveguide Thermo-Optic Mode Switch with Bimodal S-Bend

Nanomaterials
A silica waveguide thermo-optic mode switch with small radius bimodal S-bends is demonstrated in this study. The cascaded multimode interference coupler is adopted to implement the E11 and E21 mode selective output. The beam propagation method is used in
Zhentao Yao, Manzhuo Wang, Yue Zhang, Zhaoyang Sun, Xiaoqiang Sun, Yuanda Wu, Daming Zhang   +6 more
doaj   +1 more source

Conformational Transduction Amplification in a Biomimetic Polyelectrolyte for Ultrasensitive Imaging of Iron Metabolism

Advanced Science, EarlyView.
This work designs a peptide‐free polyelectrolyte with stable, switchable conformations and near‐infrared fluorescence in water. It harnesses a cooperative Fe3+‐triggered sheet‐to‐helix transition to generate nonlinear fluorescence quenching, enabling the ultrasensitive, real‐time visualization of Fe3+ ion distribution and metabolic trafficking at ...
Yeqiang Zhou, Danqi Yang, Yiwei Wang, Shuangyan Li, Fan Fan, Jiayu Zou, Cheng Zhang, Yang Liu, Hong Tan, Mingming Ding   +9 more
wiley   +1 more source

Synthesis of Al-Al2O3 nanostructures by laser ablation

Қарағанды университетінің хабаршысы. Физика сериясы, 2018
The results of synthesis of aluminum nanoparticles (NPs) by laser ablation are presented. Water, ethanol, chlorobenzene were used for the synthesis of NPs as solvents. Measurements of sizes and shapes of NPs are carried out.
D.A. Afanasyev, N.Kh. Ibrayev, M.E. Kasymov   +2 more
doaj  

Discovery and Characterization of White Dwarf–FGK Main-sequence Binaries within the Optical Main-sequence Locus

The Astrophysical Journal Supplement Series
White dwarf–main sequence (WDMS) binaries provide important laboratories for studying binary evolution and the formation of low-mass white dwarfs. In this work, we identify 654 reliable WDMS candidates with FGK-type companions from an initial set of 772 ...
Mingkuan Yang, Hailong Yuan, Xiaozhen Yang, Zhongrui Bai, Yuji He, Jianping Xiong, Jiao Li, Mengxin Wang, Yiqiao Dong, Ziyue Jiang, Qian Liu, Ganyu Li, Ming Zhou, Haotong Zhang, Xuefei Chen   +14 more
doaj   +1 more source

Unraveling the Dominant Size Effect in Polydisperse Solutions and Maximal Electric Field Enhancement of Gold Nanoparticles

Photonics
In this study, we systematically investigate theoretically and experimentally the plasmonic effect and roles of big and small gold nanoparticles (Au NPs) within a mixed solution. The polydisperse solution was initially prepared by mixing small (10, 30 nm)
Quang Truong Pham, Gia Long Ngo, Chi Thanh Nguyen, Isabelle Ledoux-Rak, Ngoc Diep Lai   +4 more
doaj   +1 more source

Nano‐Confined Radical Anion as An NIR‐II Photothermal Immunogenic Amplifier for In Situ Cancer Vaccination

Advanced Science, EarlyView.
A nano‐confined radical anion acts as a photothermal immunogenic amplifier. Kinetically stabilized nanoparticles couple high near‐infrared‐II (NIR‐II) photothermal efficacy with glutathione (GSH) depletion to boost reactive oxygen species (ROS) and immunogenic cell death (ICD).
Mengxin Mu, Mengyu Guo, Jun Guan, Xiaofeng He, Mingdi Hu, Fene Gao, Klaus Müllen, Chendong Ji, Chunying Chen, Meizhen Yin   +9 more
wiley   +1 more source

Study of Anomalous Ultraviolet Extinction.

The Astronomical Journal, 1964
R. H. Hardie, A. M. Heiser, D. W. Weedman   +2 more
openaire   +2 more sources

Femtosecond‐Laser Nanocavitation Regenerates SERS‐Active Plasmonic Nanogaps for Longitudinal Molecular Sensing at Biointerfaces

Advanced Science, EarlyView.
A regenerative molecular sensing platform that co‐localizes surface‐enhanced Raman spectroscopy (SERS) sensing and nanocavitation‐based actuation. Femtosecond‐laser triggered nanocavitation produces thermomechanical forces to locally regenerate SERS‐active nanogaps in protein‐rich biofluids while preserving optical performance.
Aditya Garg, Ze Zong, Meitong Nie, Stacie E. Deaver, Elizabeth M. Van Order, Elieser Mejia, Peter Vikesland, Erin S. Gloag, Wei Zhou   +8 more
wiley   +1 more source

Bioinspired Multifunctional Flexible C‐SiC Fibrous Aerogel for Superior Electromagnetic Interference Shielding Under Extreme Environments

Advanced Science, EarlyView.
This schematic presents a biomimetic C‐SiC fibrous aerogel inspired by the special structure of momordica charantia. It exhibits outstanding thermal insulation and ultrahigh specific electromagnetic shielding performance, together with excellent high‐temperature stability and mechanical flexibility, showing great promise for aerospace applications ...
Tianyue Yang, Yan Shen, Zhongqian Zhao, Xue Zhou, Qianji Chen, Xujing Wang, Chuchu Zheng, Zhaoxiang Lu, Yangzhong Zhao, Yanzi Gou   +9 more
wiley   +1 more source