Results 111 to 120 of about 835,988 (340)

FT-Raman Spectroscopy as a Tool to Study the Secondary Structures of Wheat Gliadin Proteins. [PDF]

open access: yesMolecules, 2021
Stawoska I   +4 more
europepmc   +1 more source

Colossal photostructural changes in chalcogenide glasses. Athermal photoinduced polymerization in AsxS100-x bulk glasses revealed by near-bandgap Raman scattering

open access: yes, 2009
Near-bandgap Raman scattering was used to induce and study photostructural changes in AsxS100-x bulk glasses revealing a new photoinduced polymerization effect.
Kyriazis, F., Yannopoulos, S. N.
core   +1 more source

Wearable Battery‐Free Electrotherapy of Smartsensors for Wound Healthcare

open access: yesAdvanced Science, EarlyView.
Herein, we propose a simple strategy for integrating battery‐free electrotherapy wound dressings with wound sensors. Solid‐state supercapacitors constructed by PMAB with cross‐linked interpenetrating network provide energy for electrotherapy. Meanwhile, excellent mechanical sensing performance of wound dressing was used for wound assessment.
Wenrui Zhang   +9 more
wiley   +1 more source

Simple and efficient method for detection of traces of rare earth elements in minerals by raman spectroscopy instrumentation

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2011
As an effort to increase the knowledge about the abundance, distribution and geochemical behavior of the rare earth elements (REEs), a simple and effective Raman spectroscopic method for detection of REEs in minerals is proposed.
Petre Makreski   +3 more
doaj   +1 more source

Faience: the ceramic technology of ancient Egypt [PDF]

open access: yes, 2012
Faiences are ancient Egyptian ceramic materials, considered as "high-tech" products. The paper discussed the method by which the faiences were produced and the application of SEM and Raman spectroscopy to their ...
Sparavigna, Amelia Carolina
core  

Oil‐Coated Nanoplastics Induce Rapid Membrane Disruption and Severe Intestinal Injury

open access: yesAdvanced Science, EarlyView.
Oil‐rich food contact dramatically amplifies MNP release from plastic takeout containers, producing oil‐coated nanoplastics with altered surface properties and rapid membrane‐disruptive effects. These particles cause severe intestinal barrier damage and immune dysfunction in mice, and risk modeling suggests that long‐term gastrointestinal burdens may ...
Ruwen Xie   +17 more
wiley   +1 more source

Structural and spectroscopic characterization oF N’-[(1E)-(4-fluorophenyl)methylidene]thiophene-2-carbohydrazide, a potential precursor to bioactive agents

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2016
In this study, vibrational spectral analysis of the title compound was carried out using FT-IR and FT-Raman spectroscopy in the range of 500−4000 cm−1. The vibrational analysis was aided by an electronic structure calculation based on the B3LYP/6-311++G ...
Monirah Abdel-Rahman Al-Alshaikh   +5 more
doaj   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

Bifunctional Artificial Enzymes‐Loaded Microgels With LOX‐ and CAT‐Like Activities for Metabolic Reprogramming and Scarless Wound Repair

open access: yesAdvanced Science, EarlyView.
A bifunctional lactate oxidase‐like and catalase‐like artificial enzyme (Metazyme) is integrated into a rod‐shaped microgel (MetaRgel) to enable cascade lactate oxidation and oxygen regeneration. By reprogramming the wound metabolic microenvironment, MetaRgel alleviates excessive lactate accumulation, oxidative stress, hypoxia, and inflammation ...
Yongyuan Kang   +9 more
wiley   +1 more source

Exploration of Probing Structure, Fictive Temperature, and Homogeneity of Commercial Glass and Glass Fiber Vibrational Spectroscopic Techniques

open access: yesApplied Spectroscopy Practica
Utilizing a set of spectroscopic techniques, i.e., Fourier transform infrared (FT-IR) in transmission (KBr method), attenuated total reflection (ATR) FT-IR, and micro-Raman, and several characterization methods relevant to the commercial production of E ...
Hong Li   +6 more
doaj   +1 more source

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