Results 81 to 90 of about 819,497 (252)

Group IV platforms for the mid-infrared [PDF]

open access: yes, 2013
We have investigated several material platforms for the mid-infrared including silicon on insulator (SOI), polycrystalline silicon, and suspended silicon structures.
Krauss, T.F.   +34 more
core   +1 more source

AI‐Enabled RGB Light‐to‐Frequency Sensor for Nondestructive Salinity Stress Monitoring in Medicinal Plants

open access: yesAdvanced Intelligent Systems, EarlyView.
A distributed wireless sensing framework enables noninvasive monitoring of plant salinity stress through leaf reflectance measurements acquired with portable optical sensors. The collected data are processed using TinyML‐based neural network models deployed at the edge, enabling accurate, real‐time, and low‐cost classification of salinity levels, while
Ali Ahmad   +4 more
wiley   +1 more source

INFRARED SPECTROPHOTOMETRY, A RAPID AND EFFECTIVE TOOL FOR CHARACTERIZATION OF DIRECT DISTILLATION NAPHTHAS La espectrofotometría infraroja, una herramienta rápida y efectiva para la caracterización de naftas de destilación directa

open access: yesCT&F Ciencia, Tecnología & Futuro, 2005
The characterization of naphtha obtained by direct distillation of medium and heavy crude oils is often limited by the low yield of these fractions. Gas chromatography is a technique that allows a complete determination of the chemical composition of ...
Carlos-A Baldrich Ferrer   +1 more
doaj  

A SPHEREx Pipeline and Spectral Library for Ultracool Dwarfs

open access: yesThe Astrophysical Journal
We present a Python spectrophotometry extraction tool tailored for fast-moving point sources detected in the SPHEREx mission and use it to construct a set of 0.75–5.0 μ m low-resolution ( λ /Δ λ  ≈ 50) spectrophotometry data products based on the SPHEREx
Jonathan Gagné   +74 more
doaj   +1 more source

Multifunctional polycaprolactone‐based composite fibers with icariin and glutathione for effective repair of critical‐sized bone defects

open access: yesBMEMat, EarlyView.
A multifunctional PCL‐based scaffold co‐delivering Icariin and Glutathione synergistically enhances osteogenesis, angiogenesis, and oxidative stress resistance, achieving near‐complete repair of critical‐sized bone defects in vivo. This cell‐free platform represents a promising strategy for accelerated bone regeneration.
Abdurohman Mengesha Yessuf   +11 more
wiley   +1 more source

Preparation of Polyester-Based Metal-Cross Linked Polymeric Composites as Novel Materials Resistant to Bacterial Adhesion and Biofilm Formation

open access: yesMolecules, 2011
Bacterial biofilms constitute an extremely resistant form of bacterial colonization with dire health and economical implications. Towards achieving polymeric composites capable of resisting bacterial adhesion and biofilm formation, we prepared five 2,6 ...
Mutasem O. Taha   +4 more
doaj   +1 more source

The Determination of Methimazole by Infrared Spectrophotometry

open access: yesJournal of AOAC INTERNATIONAL, 1965
Abstract A method for the determination of methimazole by column chromatography and infrared spectrophotometry was subjected to collaborative study in four district laboratories. Although the results were favorable, they were not sufficiently precise nor accurate to recommend the method for adoption.
Wilson L Brannon, Alma L Hayden
openaire   +1 more source

Exosome‐mimetic vesicle‐encapsulated multi‐responsive antibacterial hydrogel core‐shell microneedle patch promotes scarless healing of infected wounds

open access: yesBMEMat, EarlyView.
The core‐shell microneedle patch VP@FNV‐CuO2‐MN was fabricated by encapsulating n‐CuO2 in a moderately crosslinked PVA/CMCS/Borax4 hydrogel shell and VP‐loaded fibroblast membrane nanovesicles (VP@FNV) in a highly crosslinked PVA/CMCS/Borax6 hydrogel core. Upon application to an infected wound, the acidic microenvironment triggers Fenton‐like reactions
Ziwei Jiang   +12 more
wiley   +1 more source

Detection of Solvents by Infrared Spectrophotometry

open access: yesJournal of AOAC INTERNATIONAL, 1967
Abstract The solvent used in the recrystallization of a solid may be determined by use of the IR spectrum and gas cell. Recrystallized powders retain a minute amount of solvent which is not detectable in a KBr disk of the powder, but is detectable when a gas cell is vised.
Evelyn Sarnoff   +2 more
openaire   +1 more source

Probiotic spore‐based bioresponsive drug delivery for reversing inflammatory bowel disease and its associated anxiety and depression

open access: yesBMEMat, EarlyView.
A probiotic spore‐based drug delivery system (BCS‐Que@ApNPs) provides excellent targeted delivery, bioresponsive drug release, and long‐term retention (over 48 h), making it suitable for oral treatment of inflammatory bowel disease and its associated anxiety and depression.
Qingling Song   +9 more
wiley   +1 more source

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