Results 31 to 40 of about 11,035 (147)

Study on the Photoacoustic Technology to Simultaneous In-Situ Detection of the Cavity Ring-Down Spectrum for Multi-Optical Parameters

IEEE Photonics Journal, 2020
A simultaneous in-situ detection technique to obtain multi-optical parameters was proposed. The same 403.56 nm, low power, blue diode laser was used to conduct the cavity ring-down spectroscopy and photoacoustic spectroscopy, which were coupled.
Hua-Wei Jin, Ren-Zhi Hu, Pin-Hua Xie, Chong-Chong Huang, Feng-Yang Wang, Chuan Lin   +5 more
doaj   +1 more source

NIR-II Nanoprobes: A Review of Components-Based Approaches to Next-Generation Bioimaging Probes

Bioengineering, 2023
Fluorescence and photoacoustic imaging techniques offer valuable insights into cell- and tissue-level processes. However, these optical imaging modalities are limited by scattering and absorption in tissue, resulting in the low-depth penetration of ...
Bryce Dunn, Marzieh Hanafi, John Hummel, John R. Cressman, Rémi Veneziano, Parag V. Chitnis   +5 more
doaj   +1 more source

In Vivo Photoacoustic Ultrasound (PAUS) Assay for Monitoring Tendon Collagen Compositional Changes during Injury and Healing

Diagnostics
Tendon injury and healing involve significant changes to tissue biology and composition. Current techniques often require animal sacrifice or tissue destruction, limiting assessment of dynamic changes in tendons, including treatment response, disease ...
Joseph B. Newton, Courtney A. Nuss, Stephanie N. Weiss, Rebecca L. Betts, Chandra M. Sehgal, Louis J. Soslowsky   +5 more
doaj   +1 more source

Photoluminescence, Photoacoustic and Structural Characteristics of Polycrystalline Zn2TiO4: Ni2+ Semiconductor [PDF]

Materials Research, 2020
This work presents the investigation, at room temperature, of Zn2TiO4samples containing Ni2+ ions as substitutional impurities. Samples with molecular formula Zn2(1-x)Ni2xTiO4, where x = 0.00, 0.0007, 0.001, 0.0013, 0.002 and 0.003, in which Zn2+ ions ...
L. P. V. Gomes, S. S. Pedro, A. López, A. R. Camara, N. Cella, L. P. Sosman   +5 more
doaj   +1 more source

Advances in high‐resolution photoacoustic imaging techniques for cellular visualization

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Photoacoustic imaging is an advanced biomedical imaging technique that combines optical excitation and ultrasound detection to provide molecular functional information of biological tissues in vivo.
Hyunjun Kye, Moon Sung Kang, Dongyoung Jo, Byullee Park, Hee Jeong Jang, Jeesu Kim, Dong‐Wook Han   +6 more
doaj   +1 more source

Resolution Enhancement Strategies in Photoacoustic Microscopy: A Comprehensive Review

Micromachines
Photoacoustic imaging has emerged as a promising modality for medical imaging since its introduction. Photoacoustic microscopy (PAM), which is based on the photoacoustic effect, combines the advantages of both optical and acoustic imaging modalities. PAM
Jinying Zhang, Yifan Shi, Yexiaotong Zhang, Haoran Liu, Shihao Li, Linglu Liu   +5 more
doaj   +1 more source

An experimental and theoretical approach to the study of the photoacoustic signal produced by cancer cells

AIP Advances, 2012
The distinctive spectral absorption characteristics of cancer cells make photoacoustic techniques useful for detection in vitro and in vivo. Here we report on our evaluation of the photoacoustic signal produced by a series of monolayers of different cell
Rafael Pérez Solano, Francisco I. Ramirez-Perez, Jorge A. Castorena-Gonzalez, Edgar Alvarado Anell, Gerardo Gutiérrez-Juárez, Luis Polo-Parada   +5 more
doaj   +1 more source

Dual-pulse nonlinear photoacoustic technique: a practical investigation

Biomedical Optics Express, 2015
The dual-pulse nonlinear photoacoustic technique is a recently developed technology based on temperature dependence of the Grüneisen parameter and involves consecutive excitations of biological tissue using two laser pulses with a short time delay.
Chao, Tian, Zhixing, Xie, Mario L, Fabiilli, Shengchun, Liu, Cheng, Wang, Qian, Cheng, Xueding, Wang   +6 more
openaire   +2 more sources

Recent advances in photoacoustic blind source spectral unmixing approaches and the enhanced detection of endogenous tissue chromophores

Frontiers in Signal Processing, 2022
Recently, the development of learning-based algorithms has shown a crucial role to extract features of vital importance from multi-spectral photoacoustic imaging.
Valeria Grasso, Valeria Grasso, Hafiz Wajahat Hassan, Peyman Mirtaheri, Regine Willumeit-Rӧmer, Regine Willumeit-Rӧmer, Jithin Jose   +6 more
doaj   +1 more source

Photoacoustic technique for diagnosis of blood clotting

International journal of health sciences, 2022
The photoacoustic technique is considered a scientific renewal in the world of diagnosing blood diseases. The motivation of this study is to get the bio-information about RBCs aggregation by analyzing of the photoacoustic signals represented with microscopic images which linking with artificial intelligence technology.
Saman Hameed Majeed, Jamal A. Hasan, Eman Ghadhban Khalil   +2 more
openaire   +1 more source