Results 81 to 90 of about 1,555,102 (288)

Mid-infrared reflectivity of experimental atheromas [PDF]

Journal of Biomedical Optics, 2008
We report that the pathologic components present within the atheromatous plaques of ApoE knock-out mice can reflect significant amounts of mid-infrared (mid-IR) light. Furthermore, the reflected light spectra contained the unique signatures of a variety of biologic features including those found in unstable or "vulnerable" plaque.
Holman, Hoi-Ying N., Bjornstad, Kathy A., Martin, Michael C., Mckinney, Wayne R., Blakely, Eleanor A., Blankenberg, Francis G.   +5 more
openaire   +3 more sources

Engineered Nanoplatforms Targeting Activated Hepatic Stellate Cells for Liver Fibrosis Therapy via TGF‐β Axis Inhibition and Ferroptosis Induction

Advanced Healthcare Materials, EarlyView.
FeS‐VA@lanifibranor (FVL), an activated hepatic stellate cell (aHSC)‐targeted nanoplatform comprising vitamin A‐functionalized two‐dimensional iron sulfide nanosheets and lanifibranor, is engineered for precision therapy of liver fibrosis. FVL suppresses the TGF‐β signaling pathway by inhibiting SMAD2/3 phosphorylation and induces ferroptosis in aHSCs,
Yinuo Yang, Mengyao Mu, Ke Ren, Hui Liu, Pengju Ma, Yingqi Wang, Mengmeng Zhang, Xueli Xu, Wenzhe Li, Wenshuang Gao, Xiao Sun, Qiang Zhu   +11 more
wiley   +1 more source

PLL‐g‐HPA Hydrogel Microneedles Loaded With Rhoifolin Target Macrophages to Alleviate Fibroblast Senescence for Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
Diabetic wound healing is hindered by a pathological crosstalk wherein elevated IL‐11 induces M1 macrophage polarization, leading to IL‐1β/IL‐6 release and subsequent fibroblast senescence via RAS/p38MAPK/p53/E2F1 signaling. Here, we develop a Gel@M‐Rho microneedle patch that delivers rhoifolin‐loaded, macrophage membrane‐coated nanoparticles to target
Jiewen Liao, Lin Gan, Li Lu, Lizhi Ouyang, Yuan Xiong, Fawwaz Al‐Smadi, Guandong Dai, Mohammad‐Ali Shahbazi, Bobin Mi, Mengfei Liu, Guohui Liu   +10 more
wiley   +1 more source

Nonlinear optics in germanium mid-infrared fiber material: Detuning oscillations in femtosecond mid-infrared spectroscopy

AIP Advances, 2017
Germanium optical fibers hold great promise in extending semiconductor photonics into the fundamentally important mid-infrared region of the electromagnetic spectrum. The demonstration of nonlinear response in fabricated Ge fiber samples is a key step in
M. Ordu, J. Guo, G. Ng Pack, P. Shah, S. Ramachandran, M. K. Hong, L. D. Ziegler, S. N. Basu, S. Erramilli   +8 more
doaj   +1 more source

Water‐Activated Phospholipid Phase‐Separation Gel as an Immunomodulatory Anti‐Adhesion Barrier for Postoperative Adhesion Prevention

Advanced Healthcare Materials, EarlyView.
A water‐activated phospholipid phase‐separation gel is repurposed as a drug‐free surgical barrier for postoperative adhesion prevention. Propylene glycol promotes rapid lamellar gel reinforcement, prolonged local retention, and tissue coverage, while phosphatidylcholine‐mediated immunomodulation suppresses inflammatory and fibrotic responses. This dual‐
Jong‐Ju Lee, Yulseung Sung, Yeji Kim, Heesang Yang, Suyeon Pyo, Byeol Yun, Sung‐Joo Hwang   +6 more
wiley   +1 more source

Silicon photonic crystal thermal emitter at near-infrared wavelengths [PDF]

, 2015
This work was supported by the EPSRC Programme Grant “Structured Light” EP/J01771X/1.Controlling thermal emission with resonant photonic nanostructures has recently attracted much attention.
O'Regan, Bryan, Wang, Yue, Krauss, Thomas Fraser   +2 more
core   +1 more source

GeAsSeTe/GeAsSe Pedestal Waveguides for Long-Wave Infrared Tunable on-Chip Spectroscopy

Photonics
A dry-etched pedestal chalcogenide waveguide platform, designed for use in long-wave IR spectrometer applications, is demonstrated, fabricated and optically characterized.
Vasileios Mourgelas, Sirawit Boonsit, James Shafto Wilkinson, Ganapathy Senthil Murugan   +3 more
doaj   +1 more source

“Smelltronics”—From Gas to Smell Sensing

Advanced Materials, EarlyView.
The emerging field of smelltronics, encompassing sensing technologies for complex volatile organic compounds, holds significant potential for extracting valuable chemical information. It facilitates the noninvasive, real‐time monitoring of humans, food, and the environment.
Takeshi Ono, Tsunaki Takahashi, Jiangyang Liu, Haruka Honda, Zeng Jing, Wataru Tanaka, Takuro Hosomi, Takeshi Yanagida   +7 more
wiley   +1 more source

First Mid-infrared Detection and Modeling of a Flare from Sgr A*. II. Mid-infrared Spectral Energy Distribution and Millimeter Polarimetry

The Astrophysical Journal
S. D. von Fellenberg et al. reported the first mid-infrared detection of a flare from Sgr A*. The JWST/MIRI/Medium Resolution Spectrometer observations were consistent with an orbiting hotspot undergoing electron injection with a spectrum that ...
Joseph M. Michail, Sebastiano D. von Fellenberg, Garrett K. Keating, Ramprasad Rao, Tamojeet Roychowdhury, S. P. Willner, Nicole M. Ford, Daryl Haggard, Sera Markoff, Alexander Philippov, Bart Ripperda, Sophia Sanchez-Maes, Zach Sumners, Gunther Witzel, Mayura Balakrishnan, Sunil Chandra, Kazuhiro Hada, Macarena Garcia Marin, Mark A. Gurwell, Giovanni G. Fazio, Joseph L. Hora, Braden Seefeldt-Gail, Howard A. Smith   +22 more
doaj   +1 more source

Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots

Advanced Materials, EarlyView.
A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler, Benjamin Aymoz, Sebastian Sabisch, Stefanie Frick, Sebastian Siol, Dmitry N. Dirin, Simon C. Boehme, Maksym V. Kovalenko   +7 more
wiley   +1 more source