Results 61 to 70 of about 3,619,372 (170)
This investigation combines experimental characterization with numerical modeling to reveal how laser parameters such as fluence and pulse duration influence the behavior of membrane‐incorporated photoexcited gold nanoparticles. This gives rise to distinct nanoparticle modifications and membrane response pathways ranging from localized permeabilization
Regina L. Salzer +5 more
wiley +1 more source
Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) has become a gas sensing leading-edge technology thanks to multi-species detection, modularity, ruggedness, portability, and real time operation.
Sampaolo A. +7 more
core
BODIPY‐based J‐aggregates: From supramolecular chemistry to NIR bioimaging and phototherapies
BODIPY dyes form ordered J‐aggregates through controlled supramolecular self‐assembly, producing narrow, red‐shifted absorption bands with small Stokes shifts. This review highlights design strategies governing J‐aggregation, structure–property relationships, and applications in sensing, bioimaging, and phototherapy, guiding functional BODIPY‐based ...
Pooja Sharma +2 more
wiley +1 more source
Front-End Amplifiers for Tuning Forks in Quartz Enhanced PhotoAcoustic Spectroscopy
A study of the front-end electronics for quartz tuning forks (QTFs) employed as optoacoustic transducers in quartz-enhanced photoacoustic spectroscopy (QEPAS) sensing is reported.
Giansergio Menduni +11 more
doaj +1 more source
Breathomics is established as a non‐invasive diagnostic strategy by combining volatile organic compound biomarkers, nanomaterial‐based sensor arrays, and AI‐driven classification. Key diseases, sensing materials, and analytical challenges are critically compared, revealing how portable, data‐enabled breath platforms are moving toward clinically useful ...
Anesu Nyabadza +3 more
wiley +1 more source
The graphical abstract illustrates a circular waste to value pathway in which coal fly ash is upgraded by isolating unburned carbon and converting it into functional carbon materials. Through carbonization and activation, UC‐derived carbon is transformed into high surface area electrodes for supercapacitors, supporting sustainable energy storage and ...
Thapelo Manyepedza, Moses T. Kabomo
wiley +1 more source
All optical quartz-enhanced photoacoustic spectroscopy
A trace gas sensor based on all optical quartz-enhanced photoacoustic spectroscopy (QEPAS) is designed and demonstrated. An extra detection light beam is added to the traditional QEPAS setup to convert the amplitude of vibration of the quartz tuning fork, which is proportional to the concentration of the target gas, into the variation of the detection ...
null Liu Yan-Yan +7 more
openaire +1 more source
New approaches in quartz-enhanced photoacoustic sensing
We report on the design and realization of custom quartz tuning forks with different geometries and sizes aimed to improve the photoacoustic effect in quartz-enhanced photoacoustic (QEPAS) sensor systems.
Sampaolo, Angelo +4 more
core +2 more sources
Here we report on the broadband detection of nitrous oxide (N2O) and methane (CH4) mixtures in dry nitrogen by using a quartz-enhanced photoacoustic (QEPAS) sensor exploiting an array of 32 distributed-feedback quantum cascade lasers, within a spectral ...
Marilena Giglio +14 more
doaj +1 more source
Engineered Optical Fibers for Deep‐Tissue Applications
This review establishes a foundational framework for designing optical fibers for deep‐tissue medicine. It systematically links material innovations like polymers and hydrogels with structural paradigms to enable state‐of‐the‐art diagnostics, including endoscopy and biosensing, and targeted therapeutics, guiding future clinical translation.
Yuzhen Li +16 more
wiley +1 more source

