Results 111 to 120 of about 3,766 (264)

Quantitative photoacoustic imaging study of tumours in vivo: Baseline variations in quantitative measurements.

open access: yes, 2019
Photoacoustic imaging (PAI) provides information on haemoglobin levels and blood oxygenation (sO2). To facilitate assessment of the variability in sO2 and haemoglobin in tumours, for example in response to therapies, the baseline variability of these ...
Martinho Costa, M   +7 more
core   +1 more source

Carbon Dots for Cancer Theranostics: Synthesis Strategies, Luminescence Properties, and Advances in Bioimaging‐Guided Diagnosis and Therapy

open access: yesChemistry – A European Journal, EarlyView.
Lighting up the path to precision oncology: This review comprehensively summarizes the rational design of carbon dots (CDs), elucidating how core size, surface chemistry, and heteroatom doping dictate their luminescence mechanisms. Special emphasis is placed on engineering NIR‐II emissive CDs for deep‐tissue imaging.
Zekun Yan   +3 more
wiley   +1 more source

Time-resolved derivation of heat fluxes from quantitative infrared thermography and its relationship to photoacoustics

open access: yes, 1986
Part of the plasma power losses in magnetic-confinement-based nuclear-fusion devices is deposited on limiters or divertor targets. This part can be deduced quantitatively from time- and space-resolved infrared (IR) surface-temperature measurements at ...
B. K. Bein
core   +1 more source

Breath Isoprene Sensor Based on Quartz-Enhanced Photoacoustic Spectroscopy

open access: yesSensors
Isoprene, the most abundant endogenous hydrocarbon in human breath, is a promising biomarker for metabolic and cardiovascular diseases. In this paper, we present the detection of isoprene in exhaled breath using the off-beam Quartz-Enhanced Photoacoustic
Fadia Abou Naoum   +11 more
doaj   +1 more source

Tissue Optics and Photonics: Light-Tissue Interaction II

open access: yesJournal of Biomedical Photonics & Engineering, 2016
This is the third part of the review-tutorial paper describing fundamentals of tissue optics and photonics. The first part of the paper was mostly devoted to description of tissue structures and their specificity related to interactions with light [1 ...
Valery V. Tuchin
doaj   +1 more source

All‐in‐One Intelligent Hemostatic Sponge: Rapid Hemostasis for Non‐Compressive Wounds With Synergetic Enhanced Antibacterial Efficacy and Self‐Reporting Biodegradation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Clinicians often concurrently tackle critical challenges including emergency hemorrhage, secondary infection, and the elusive tracking of biodegradation of conventional hemostatic agents for complex wounds. Here, we report an intelligent hemostatic sponge (spCS@AIE) by incorporating aggregation‐induced emission (AIE) nanoparticles with short‐wave ...
Zhicheng Liu   +12 more
wiley   +1 more source

Laser photoacoustics: a novel method for ethylene determination in plant physiological studies.

open access: yes, 1989
A CO2 laser-based photoacoustic method was used to determine the initial changes in ethylene production following emasculation of selected orchid species.
Harren, F., Bicanic, D.D., Woltering, E.
core   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam   +3 more
wiley   +1 more source

Application of pulsed photoacoustics in water at high pressure

open access: yes, 1999
The effectiveness of pulsed laser photoacoustics in the spectral analysis of water at high pressures is studied. The pulsed photoacoustic response from distilled water at 20 °C for a range of pressures from 1-350 bars is considered.
Hannigan, John   +2 more
core  

Photoacoustic Drug Delivery

open access: yesSensors, 2017
Photoacoustic (PA) technology holds great potential in clinical translation as a new non-invasive bioimaging modality. In contrast to conventional optical imaging, PA imaging (PAI) enables higher resolution imaging with deeper imaging depth. Besides applications for diagnosis, PA has also been extended to theranostic applications.
Yuqi Zhang   +3 more
openaire   +2 more sources

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