Results 151 to 160 of about 49,267 (256)

Seedless One‐Pot Synthesis of Colloidal InAs Quantum Dots Enabling a High‐Accuracy Photoplethysmography Oximeter

Advanced Science, EarlyView.
A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim, Seungin Jee, Yongnam Ahn, In‐Suh Lee, Dongeon Kim, Seongchong Park, Yujin Jung, In‐Ho Bae, Se‐Woong Baek   +8 more
wiley   +1 more source

Observation of continuous time crystals and quasi-crystals in spin gases. [PDF]

Nat Commun
Huang Y, Wang T, Yin H, Jiang M, Luo Z, Peng X.   +5 more
europepmc   +1 more source

Near horizon limit of the Wang--Yau quasi-local mass

In this article, we compute the limit of the Wang--Yau quasi-local mass on a family of surfaces approaching the apparent horizon (the near horizon limit). Such limit is first considered in [1].
Chen, Po-Ning
core  

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

Advanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen, Wei Zeng, Zherui Zhao, JiYu Zhao, Ziyan Huang, Zhuo Chen, Kui Zhou, Guanglong Ding, Su‐Ting Han, Ye Zhou   +9 more
wiley   +1 more source

Graphene-enhanced non-Hermitian Thue-Morse metamaterial sensor exploiting exceptional point for cancer biomarker detection. [PDF]

Sci Rep
Mohammadpour A, Vala AS, Barvestani J.
europepmc   +1 more source

A Correlative SICM‐OPM Platform for Surface and Volumetric Imaging in Live Cells

Advanced Science, EarlyView.
A multifunctional correlative imaging platform integrating Scanning Ion Conductance Microscopy (SICM) with Oblique Plane Microscopy (OPM) enables simultaneous surface topography, mechanical mapping, and 3D volumetric fluorescence imaging in live cells.
Wenzhi Hong, Ziwei Zhang, Ao Li, Ting Sun, Yunzhao Wu, Devkee M. Vadukul, Dylan Jones, Bing Li, Fengjie Liu, Francesco A. Aprile, Yuri Korchev, Julia Gorelik, David Klenerman, Andrew Shevchuk   +13 more
wiley   +1 more source

Relativistic electron acceleration at the bow shock of Jupiter and beyond. [PDF]

Nature
Raptis S, Turner DL, Caprioli D, Szalay JR, Clark G, Haggerty CC.   +5 more
europepmc   +1 more source

High‐Power Terahertz Emission from Picosecond Nano‐Plasma Switching Driven by Secondary Electron Emission Avalanche

Advanced Science, EarlyView.
A nano‐plasma device enables watt‐level on‐chip THz generation through picosecond switching triggered by secondary electron emission avalanche. An ultra‐dense electron sheet initiates nano‐plasma formation within a ∼100 nm gap, driving rapid energy release into an integrated resonator.
Guangyu Sun, Mohammad Rezaei, Yuheng Hu, Guan‐Jun Zhang, Elison Matioli   +4 more
wiley   +1 more source

A quieter state of charge and ultra-low-noise of the collective current in quasi-1D charge-density-wave nanowires. [PDF]

Nat Commun
Ghosh S, Sesing N, Nataj ZE, Salguero T, Rumyantsev S, Lake RK, Balandin AA.   +6 more
europepmc   +1 more source

Antenna Effect in Halogen‐Containing ZnSm Coordination Compounds: Utilizing Colorimetry for a Room‐Temperature Tunable Ratiometric Molecular Thermometer

Advanced Science, EarlyView.
The ZnSm‐Cl dinuclear molecular complex was synthesized through a simple one‐pot method. ZnL and Sm3+ exhibit complementary temperature‐dependent emission As the temperature increases, a noticeable color difference of ZnSm‐Cl can be observed within the room temperature range of 253‐333 K.
Ye Xia, Yingshan Xue, Feng Pan, Ai Wang, Hong Huang, Zhenxing Li, Bing‐Wu Wang, Song Gao   +7 more
wiley   +1 more source