Results 61 to 70 of about 98,832 (287)

Electro-Optic Swept Source Based on AOTF for Wavenumber-Linear Interferometric Sensing and Imaging

Fibers, 2016
We demonstrate a novel electro-optic swept source for wavenumber-linear interferometric sensing and imaging applications. The electro-optic swept source based on an acousto-optic tunable filter (AOTF) provides high environmental stability and arbitrary ...
Ga-Hee Han, Soon-Woo Cho, Nam Su Park, Chang-Seok Kim   +3 more
doaj   +1 more source

In vivo human retinal and choroidal vasculature visualization using differential phase contrast swept source optical coherence tomography at 1060 nm [PDF]

, 2012
A differential phase contrast (DPC) method is validated for in vivo human retinal and choroidal vasculature visualization using high-speed swept-source optical coherence tomography (SS-OCT) at 1060 nm.
Fraser, Scott, Motaghiannezam, Reza
core   +1 more source

Lens-based wavefront sensorless adaptive optics swept source OCT [PDF]

Scientific Reports, 2016
AbstractOptical coherence tomography (OCT) has revolutionized modern ophthalmology, providing depth resolved images of the retinal layers in a system that is suited to a clinical environment. Although the axial resolution of OCT system, which is a function of the light source bandwidth, is sufficient to resolve retinal features at a micrometer scale ...
Jian, Yifan, Lee, Sujin, Ju, Myeong Jin, Heisler, Morgan, Ding, Weiguang, Zawadzki, Robert J, Bonora, Stefano, Sarunic, Marinko V   +7 more
openaire   +5 more sources

Magnetically Responsive Piezoelectric Nanocapacitors Enhance Neural Recovery Following Spinal Cord Injury via Targeted Spinal Magnetic Stimulation

Advanced Science, EarlyView.
This study presents a novel “in vivo–in vitro” therapeutic strategy for spinal cord injury by leveraging magnetically responsive piezoelectric nanomaterials. These nanomaterials enable targeted delivery of localized electrical stimulation at the injury site through noninvasive external magnetic actuation, thereby promoting axonal regeneration and ...
Zhihang Xiao, Tingting Li, Lechi Zhang, Chunya Xia, Zelin Su, Xuyan Ren, Yingjie Fan, Zerui Wu, Yaobo Liu, Min Su   +9 more
wiley   +1 more source

Retinal Nerve Fiber Layer Features Identified by Unsupervised Machine Learning on Optical Coherence Tomography Scans Predict Glaucoma Progression. [PDF]

, 2018
Purpose:To apply computational techniques to wide-angle swept-source optical coherence tomography (SS-OCT) images to identify novel, glaucoma-related structural features and improve detection of glaucoma and prediction of future glaucomatous progression.
Belghith, Akram, Bowd, Christopher, Christopher, Mark, Goldbaum, Michael H, Medeiros, Felipe A, Saunders, Luke J, Weinreb, Robert N, Zangwill, Linda M   +7 more
core   +1 more source

Natural Negative Feedback Loops Confer Indica‐Japonica Differentiation for Grain Size Homeostasis in Rice

Advanced Science, EarlyView.
This study reveals the genetic and molecular mechanisms controlling grain size homeostasis through fine‐tuning OsGRX8 self‐expression by two natural negative feedback loops functioning in redox‐dependent or ‐independent manners and identifies two self‐regulatory haplotypes (SRHs) for the subspecies differentiation in rice.
Xingxing Li, Meng‐en Wu, Ziqi Qiao, Junkui Huang, Juncheng Zhang, Yang Ding, Junqing Zhu, Jingyue Xu, Yuxin Huang, Wei Li, Xiaomin Su, Yue Ding, Jianwei Zhang, Yibo Li   +13 more
wiley   +1 more source

Analysis of FDML lasers with meter range coherence

, 2017
FDML lasers provide sweep rates in the MHz range at wide optical bandwidths, making them ideal sources for high speed OCT. Recently, at lower speed, ultralong-range swept-source OCT has been demonstrated1, 2 using a tunable vertical cavity surface ...
Draxinger, Wolfgang, Huber, Robert, Klein, Thomas, Petermann, Markus, Pfeiffer, Tom, Wieser, Wolfgang   +5 more
core   +1 more source

Photothermal optical coherence tomography in ex vivo human breast tissues using gold nanoshells [PDF]

, 2009
We demonstrate photothermal optical coherence tomography (OCT) imaging in highly scattering human breast tissue ex vivo. A 120 kHz axial scan rate, swept-source phase-sensitive OCT system at 1300 nm was used to detect phase changes induced by 830 nm ...
Adler, Agrawal, Amy Mondelblatt, Cang, Chao Zhou, David W. Cohen, Desmond C. Adler, Hsiang-Chieh Lee, Huang, Huang, James G. Fujimoto, James L. Connolly, Lee, Loo, O'Neal, Oh, Oldenburg, Oldenburg, Oldenburg, Skala, Sokolov, Tsung-Han Tsai, Yang, Yihong Wang   +23 more
core   +1 more source

Liver Stiffness Rises Early in MASLD and Drives Inflammation, Lipid Dysmetabolism, and Fibrosis via Piezo1–YAP Mechanotransduction

Advanced Science, EarlyView.
Progressive stiffening of the hepatic extracellular matrix and free fatty acid overload activate the mechanosensor Piezo1 in steatotic hepatocytes, inducing calcium influx and nuclear translocation of Yes‐associated protein. YAP‐dependent nuclear signaling further drives inflammatory and fibrotic gene programs, lipid metabolic reprogramming, and ...
Juan Ma, Ning Xie, Ziwei Wang, Xiru Liang, Yulong Han, Qiang Zhao, Ming Wang, Hongwei Lu, Wanyi Kou, William Alazawi, Jinhai Wang, Lu Li, Ning Liu, Na Liu, Haitao Shi, Feng Xu   +15 more
wiley   +1 more source

Orbital Cavernous Hemangioma Presenting with a Dome-Shaped Maculopathy-Like Appearance on Swept-Source Optical Tomography Imaging

Case Reports in Ophthalmological Medicine, 2020
A 43-year-old patient presented with painless proptosis, limited upgaze, and vision loss in the right eye. Funduscopic examination revealed right optic disc edema and subtle macular compression. Swept-source optical coherence tomography (SS-OCT) revealed
Şükran Bekdemir, Ahmet Kaan Gündüz, Cevriye Cansız Ersöz   +2 more
doaj   +1 more source