Results 61 to 70 of about 1,555,141 (308)

Special Issue “Applications of Photoacoustic Spectroscopy” [PDF]

open access: yesMolecules, 2020
Photoacoustic spectroscopy is one of the most exciting areas of research in physics and chemistry, covering a broad range of applications from agricultural to biological, including atmospheric monitoring, space science, and air-quality measurements to security and workplace surveillance, in addition to its great potential in preclinical and clinical ...
Cristina Popa   +2 more
openaire   +4 more sources

Discrete Imaging Models for Three-Dimensional Optoacoustic Tomography using Radially Symmetric Expansion Functions [PDF]

open access: yes, 2014
Optoacoustic tomography (OAT), also known as photoacoustic tomography, is an emerging computed biomedical imaging modality that exploits optical contrast and ultrasonic detection principles.
Er Oraevsky   +5 more
core   +1 more source

Photoacoustic detection of stimulated emission pumping in p-difluorobenzene [PDF]

open access: yes, 1984
Photoacoustic detection has been used to monitor a stimulated emission pumping process in p‐difluorobenzene. Using the Ã^(1)B_(2u)5^1 state as an intermediate, several vibrational levels of the ground electronic state were populated.
Kuppermann, A.   +2 more
core  

Effects of optical attenuation, heat diffusion and acoustic coherence in photoacoustic signals produced by nanoparticles

open access: yes, 2018
Behavior of the photoacoustic signal produced by nanoparticles as a function of their concentration was studied in detail. As the concentration of nanoparticles is increased in a sample, the peak-to-peak photoacoustic amplitude increases linearly up to a
Alba-Rosales, J. E.   +5 more
core   +1 more source

Metal Nanoclusters for Cancer Imaging and Treatment

open access: yesAdvanced Functional Materials, EarlyView.
This review aims to provide a comprehensive summary and discussion of the core–shell design capabilities of metal nanoclusters (NCs) at the atomic level for cancer imaging and treatment. It offers essential insights into the design principles of metal NCs while also encouraging the exploration of other nanomaterials and their potential theranostic ...
Haiguang Zhu   +5 more
wiley   +1 more source

Towards optimized naphthalocyanines as sonochromes for photoacoustic imaging in vivo

open access: yesPhotoacoustics, 2018
In this paper we establish a methodology to predict photoacoustic imaging capabilities from the structure of absorber molecules (sonochromes). The comparative in vitro and in vivo screening of naphthalocyanines and cyanine dyes has shown a substitution ...
Mitchell J. Duffy   +7 more
doaj   +1 more source

Microscale fiber photoacoustic spectroscopy for in situ and real-time trace gas sensing

open access: yesAdvanced Photonics
. Miniaturized laser spectroscopy capable of in situ and real-time ppb-level trace gas sensing is of fundamental importance for numerous applications, including environment monitoring, industry process control, and biomedical diagnosis.
Jun Ma   +7 more
semanticscholar   +1 more source

MEMS-Based Terahertz Photoacoustic Chemical Sensing System [PDF]

open access: yes, 2016
Advancements in microelectromechanical system (MEMS) technology over the last several decades has been a driving force behind miniaturizing and improving sensor designs.
Coutu, Ronald A., Jr.   +3 more
core   +1 more source

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

open access: yesAdvanced Materials, EarlyView.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis   +6 more
wiley   +1 more source

Quartz-Enhanced Photoacoustic and Photothermal Spectroscopy

open access: yesApplied Sciences, 2022
The development of innovative gas-sensing systems is fundamental in diverse research fields such as physics, chemistry, biology, medicine and environmental science [...]
Hongpeng Wu, Angelo Sampaolo
doaj   +1 more source

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