Results 131 to 140 of about 2,090,001 (315)

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 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

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

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

Advanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati, Yoann Lalatonne, Cédric Chauvierre   +2 more
wiley   +1 more source

Sirius B Imaged in the Mid-Infrared: No Evidence for a Remnant Planetary System

, 2011
Evidence is building that remnants of solar systems might orbit a large percentage of white dwarfs, as the polluted atmospheres of DAZ and DBZ white dwarfs indicate the very recent accretion of metal-rich material. (Zuckerman et al. 2010).
Andrew J. Skemer, Bessel, Brinkworth, Farihi, Hartkopf, Holberg, Jura, Jura, Laird M. Close, Mullally, Perryman, Reach, von Hippel, Zuckerman, Zuckerman   +14 more
core   +1 more source

Convolutional neural network for simultaneous prediction of several soil properties using visible/near-infrared, mid-infrared, and their combined spectra

Geoderma, 2019
No single instrument can characterize all soil properties because soil is a complex material. With the advancement of technology, laboratories have become equipped with various spectrometers.
Wartini Ng, B. Minasny, M. Montazerolghaem, J. Padarian, R. Ferguson, Scarlett Bailey, A. McBratney   +6 more
semanticscholar   +1 more source

Compact Mid-Infrared Gas Sensing Enabled by an All-Metamaterial Design.

Nano letters (Print), 2020
The miniaturization of mid-infrared optical gas sensors has great potential to make the 'fingerprint region' between 2 and 10 µm accessible to a variety of cost-sensitive applications ranging from medical technology to atmospheric sensing.
A. Lochbaum, A. Dorodnyy, U. Koch, S. Koepfli, Sebastian Volk, Y. Fedoryshyn, V. Wood, J. Leuthold   +7 more
semanticscholar   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

A Review of Mid-Infrared and Near-Infrared Imaging: Principles, Concepts and Applications in Plant Tissue Analysis

Molecules, 2017
Plant cells, tissues and organs are composed of various biomolecules arranged as structurally diverse units, which represent heterogeneity at microscopic levels.
Sevgi Türker-Kaya, Christian W. Huck
doaj   +1 more source

Parsec-scale dust distributions in Seyfert galaxies - Results of the MIDI AGN snapshot survey

, 2009
The emission of warm dust dominates the mid-infrared spectra of active galactic nuclei (AGN). Only interferometric observations provide the necessary angular resolution to resolve the nuclear dust and to study its distribution and properties.
Antonucci, B. Lopez, Balestra, Beckert, Beckert, Beers, Beswick, Buchanan, Ch. Leinert, Courvoisier, D. Raban, Díaz-Santos, Elitzur, Frogel, G. Perrin, Galliano, Gorjian, H. Röttgering, Hao, Hjelm, Horst, Houck, Huchra, Hönig, Jaffe, K. Meisenheimer, K. R. W. Tristram, Keel, Kemper, Kinney, Konigl, Krolik, Krolik, L. Burtscher, Lagage, Leinert, Lindblad, M. Wittkowski, Mattson, Meisenheimer, Miles, Minezaki, Nayakshin, Neugebauer, Neugebauer, Pedlar, Pier, Poncelet, Raban, Raban, Radomski, Risaliti, Roche, Rodríguez-Ardila, Rousset, S. Morel, Schartmann, Schartmann, Schmidt, Siebenmorgen, Silbermann, Soifer, Swain, Th. Henning, Theureau, Tristram, Türler, U. Graser, W. D. Cotton, W. Jaffe, Wada, Weedman, Wegner, Wilson, Wittkowski   +74 more
core   +2 more sources