Results 121 to 130 of about 43,829 (291)

Photostability of Cyanine Dyes and Its Correlation to Their Photothermal and Photodynamic Effects

Chemistry – A European Journal, EarlyView.
Photostability (PS) of dyes is a crucial parameter for performance in biological applications, yet often underrated. Here PS of several cyanines is investigated. The method is carefully evaluated and designed as a general and easy tool to compare PS of NIR dyes.
Clara Schäfer, Bo W. Laursen
wiley   +1 more source

Single-Shot Waterless Low-Profile Photoacoustic System: Near-Field Volumetric Imaging In Vivo for Blood Vessels Based on Capacitive Micromachined Ultrasonic Transducer (CMUT)

Sensors, 2019
Intensive research on photoacoustics (PA) for imaging of the living human body, including the skin, vessels, and tumors, has recently been conducted. We propose a PA measurement system based on a capacitive micromachined ultrasonic transducer (CMUT) with
Won Young Choi, Young Hun Kim, Hyeong Geun Jo, Joo Young Pyun, Soo Won Kwon, Kwan Kyu Park   +5 more
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

ENERGY &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, Yan Zhang, Mengmeng Wang, Ye Li, Heng Sun, Lanqiong Zhang, Xin Bai, Haicheng Wei, Zhi Wang, Hao Guan, Yanzi Xu, Dongfeng Dang, Lingjie Meng   +12 more
wiley   +1 more source

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

ENERGY &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, Sajjad Ali, Pir Muhammad Ismail, ABM Sharif Hossain   +3 more
wiley   +1 more source

Decolorization of Ponceau Red 4R with TiO2/ZnO: Effect of calcination temperature and Fe addition

Environmental Progress &Sustainable Energy, EarlyView.
Abstract The photocatalytic degradation of azo dyes using semiconductor oxides has emerged as a promising strategy for wastewater remediation. In this study, pure, mixed, and Fe‐doped oxide catalysts based on Zinc Oxide and Titanium Dioxide were synthesized and evaluated for the degradation of Ponceau 4R under ultraviolet irradiation.
Stefani Castilhos, Fernado Manzotti de Souza, Giane Gonçalves Lenzi, Angelo Marcelo Tusset, Luiz Mario de M. Jorge, Onelia Aparecida Andreo dos Santos   +5 more
wiley   +1 more source

Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms

Frontiers in Energy Research
In dissolved gas analysis of transformers, methane is one of the key indicators for fault diagnosis, thus accurate methane detection means a lot for early transformer failure caused by partial discharge or overheat.
Li Mengqi, Li Mengqi, Chen Zhengguang, Wang Jie, Qin Haohao, Zhou Zhenqin, Huang Siqi, Wang Qiaohua   +7 more
doaj   +1 more source

Ultrasound-guided photoacoustic image reconstruction

, 2012
Photoacoustic signals originating from weak sources can be hard to discriminate from higher intensity signals resulting from the photoacoustic background. In order to reveal these weaker signals we propose a method where the expected background signal is
G. van Soest, Van Der Steen, A. F.M., N. De Jong, P. Kruizinga, Kruizinga, P., Mastik, F., De Jong, N., F. Mastik, A. F. M. Van der Steen, Van Soest, G.   +9 more
core   +1 more source

Flexible wearable electronics for cardiovascular monitoring from surface signals to deep physiological insights

FlexMat, EarlyView.
This review organizes flexible wearable electronics for cardiovascular monitoring into four interconnected information layers: surface electrophysiology, hemodynamic sensing, vascular imaging, and biofluid biomarker analysis. This framework clarifies how electrical rhythm, vascular loading, structural and flow‐related features, and biochemical states ...
Qiao Chen, Hongwen Chen, Yuanyuan Li, Pingan Yang, Rui Li, Zhihao Zhou   +5 more
wiley   +1 more source

Correlative photoacoustic and nonlinear microscopy measurements reveal ageing signatures in multilayered paint systems

JPhys Photonics
The reliable detection of early-stage degradation in cultural heritage (CH) materials remains a significant challenge, requiring advanced diagnostic approaches capable of resolving depth-dependent chemical and structural modifications in complex ...
Eleanna Pirgianaki, Meropi Mari, Kristalia Melessanaki, Anastasia Giakoumaki, Costas Fotakis, George Filippidis, George J Tserevelakis   +6 more
doaj   +1 more source

NH4HCO3 gas-generating liposomal nanoparticle for photoacoustic imaging in breast cancer

, 2017
Jizhu Xia, Gang Feng, Xiaorong Xia, Lan Hao, Zhigang Wang Chongqing Key Laboratory of Ultrasound Molecular Imaging, Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China ...
Xia X, Xia J, Hao L, Feng G, Wang Z
core