Results 61 to 70 of about 13,784 (246)

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

Advanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu, Qi Lu, Pan Hu, Yuan Zhong, Yu He, Yaojing Zhang, Young‐Ik Sohn, Yikai Su, Lu Sun   +8 more
wiley   +1 more source

A Novel Real-Time Non-invasive Hemoglobin Level Detection Using Video Images from Smartphone Camera [PDF]

, 2017
Hemoglobin level detection is necessary for evaluating health condition in the human. In the laboratory setting, it is detected by shining light through a small volume of blood and using a colorimetric electronic particle counting algorithm.
Adibuzzaman, Mohammad, Ahamed, Sheikh Iqbal, Ahsan, Golam Mushih Tanimul, Chu, William, Field, Joshua, Gani, Md. O., Hasan, Md Kamrul   +6 more
core   +1 more source

Seeing the Speaker's Face Enhances Second Language Shadowing: Neural and Behavioral Evidence

Language Learning, EarlyView.
Abstract This functional magnetic resonance imaging (fMRI) study investigated how facial cues influence second language (L2) shadowing among 42 Japanese learners of English. Participants completed four conditions that varied by task type (listening vs. shadowing) and visual input (face vs. mosaic).
Hyeonjeong Jeong, Shuhei Kadota, Mayumi Kajiura, Hiroshi Nakanishi, Koji Kazai, Mariko Kawasaki, Yoko Nakano, Naoya Hase   +7 more
wiley   +1 more source

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3116-3130, June 2026.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer, Alexander Bratch, Shahar Goren, Edna Furman‐Haran, Noam Harel, Essa Yacoub, Rita Schmidt   +6 more
wiley   +1 more source

High-Resolution Multispectral Optoacoustic Tomography of the Vascularization and Constitutive Hypoxemia of Cancerous Tumors

Neoplasia: An International Journal for Oncology Research, 2016
Diversity of the design and alignment of illumination and ultrasonic transducers empower the fine scalability and versatility of optoacoustic imaging.
Andrei Chekkoury, Antonio Nunes, Jerome Gateau, Panagiotis Symvoulidis, Annette Feuchtinger, Nicolas Beziere, Saak V. Ovsepian, Axel Walch, Vasilis Ntziachristos   +8 more
doaj   +1 more source

Optoacoustic Neuromodulator by In Situ Photothermal Curing of Polydimethylsiloxane

Advanced Optical Materials, Volume 14, Issue 16, 24 April 2026.
Photoacoustics provides a powerful tool for generating miniaturized and patterned ultrasound field. Here, we report a novel, highly versatile method for fabricating optoacoustic emitters via an in situ photothermal curing process of PDMS. This technique enables high‐precision deposition across diverse platforms, including programmed flat substrates and
Guo Chen, Michael Marar, Deming Li, Zhuqin Xu, Biwen Gao, Meng Zhang, Wai Yuen Cheng, Feiyuan Yu, Carolyn Marar, Ji‐Xin Cheng, Chen Yang   +10 more
wiley   +1 more source

Optoacoustic properties of Doxorubicin - A pilot study.

PLoS ONE, 2019
Doxorubicin (DOX) is a widely used chemotherapeutic anticancer drug. Its intrinsic fluorescence properties enable investigation of tumor response, drug distribution and metabolism. First phantom studies in vitro showed optoacoustic property of DOX.
Melanie A Kimm, Claudia Gross, Xose Luis Déan-Ben, Avihai Ron, Ernst J Rummeny, Hsiao-Chun Amy Lin, Carsten Höltke, Daniel Razansky, Moritz Wildgruber   +8 more
doaj   +1 more source

A flexible optoacoustic blood ‘stethoscope’ for noninvasive multiparametric cardiovascular monitoring

Nature Communications, 2023
Quantitative and multiparametric blood analysis is of great clinical importance in cardiovascular disease diagnosis. Although there are various methods to extract blood information, they often require invasive procedures, lack continuity, involve bulky ...
Haoran Jin, Zesheng Zheng, Zequn Cui, Ying Jiang, Geng Chen, Wenlong Li, Zhimin Wang, Jilei Wang, Chuanshi Yang, Weitao Song, Xiaodong Chen, Yuanjin Zheng   +11 more
doaj   +1 more source

Cell‐in‐Shell Metacells in Single‐Cell Nanoencapsulation

ChemPlusChem, Volume 91, Issue 4, April 2026.
Metacells represent the next generation of living cell‐in‐shell architectures, chemically engineered through single‐cell nanoencapsulation and characterized by three functional hallmarks: reconfigurability, loadability, and motility. Single‐cell nanoencapsulation (SCNE) enables the direct integration of synthetic materials with living cells, forming ...
Duc Tai Nguyen, Nayoung Kim, Sang Yeong Han, Hyunwoo Choi, Insung S. Choi   +4 more
wiley   +1 more source

Non-Invasive Optoacoustic Imaging for In-Depth Cultural Heritage Diagnostics

Photonics
The complex composition of cultural heritage (CH) items presents significant challenges in assessing their condition and predicting potential risks of material degradation.
George J. Tserevelakis, Eleanna Pirgianaki, Kristalia Melessanaki, Giannis Zacharakis, Costas Fotakis   +4 more
doaj   +1 more source