Results 71 to 80 of about 21,982 (208)

Laser photoacoustic spectroscopy applications in breathomics

Journal of Biomedical Photonics & Engineering, 2019
The breathomics approach to express-diagnosis of bronchopulmonary diseases based on spectral analysis of volatile organic compounds in a patient’s exhaled air is discussed.
Yury V. Kistenev, Alexey V. Borisov, Victor V. Nikolaev, Denis A. Vrazhnov, Dmytry A. Kuzmin   +4 more
doaj   +1 more source

MEMS-Based Terahertz Photoacoustic Chemical Sensing System [PDF]

, 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., Glauvitz, Nathan, Medvedev, Ivan R., Petkie, Douglas T.   +3 more
core   +1 more source

Atomically precise metal cluster enzymes for pathological tissue regeneration

BMEMat, EarlyView.
Schematic illustration of atomically precise metal cluster enzymes (MCEs) for pathological tissue regeneration. Atomically precise MCEs can modulate biological processes, such as attenuation of inflammatory responses, eradication of bacterial pathogens, regulation of angiogenesis, and promotion of cell development.
Ziqiang Xiong, Zhifeng Shi, Mengqing Li, Jien Han, Haoyan Chen, Maofei Ran, Shaojian Zhong, Limin Ma, Chengyun Ning, Youzhun Fan, Zhenghua Tang, Peng Yu   +11 more
wiley   +1 more source

Photoacoustic Techniques for Trace Gas Sensing Based on Semiconductor Laser Sources

Sensors, 2009
The paper provides an overview on the use of photoacoustic sensors based on semiconductor laser sources for the detection of trace gases. We review the results obtained using standard, differential and quartz enhanced photoacoustic techniques.
Vincenzo Spagnolo, Cinzia Di Franco, Angela Elia, Pietro Mario Lugarà   +3 more
doaj   +1 more source

Optimization of CEST MRI Reporter Protein Design Using Cation‐Pi Networks

Chemistry – A European Journal, EarlyView.
A novel engineering approach can produce reporter proteins for cell and viral therapy tracking with unique magnetic resonance imaging (MRI) signatures, detectable with chemical exchange saturation transfer (CEST). We discover how cation‐π interactions between amino acid groups can help us fine‐tune magnetic resonance properties for noninvasive ...
David E. Korenchan, Ethan J. French, Emerenziana Runco, Chetan B. Dhakan, Jinwu Yan, Hiroshi Nakashima, Michael T. McMahon, Assaf A. Gilad, Christian T. Farrar   +8 more
wiley   +1 more source

Inverse Diffusion Theory of Photoacoustics

, 2009
This paper analyzes the reconstruction of diffusion and absorption parameters in an elliptic equation from knowledge of internal data. In the application of photo-acoustics, the internal data are the amount of thermal energy deposited by high frequency ...
Ammari H, Arridge S R, Bal G, Bal G, Cox B T, Gilbarg D, Guillaume Bal, Gunther Uhlmann, Haltmeier M, Hristova Y, Kunyansky L A, Patch S, Stefanov P, Stein E, Uhlmann G   +14 more
core   +2 more sources

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

Photoacoustics Modelling using Amplitude Mode Expansion Method in a Multiscale T-cell Resonator

, 2018
The photoacoustic (PA) effect consisting of the generation of an acoustic signal based on the absorption of light has already demonstrated its potential for various spectroscopic applications for both gaseous and solid samples. The signal produced during
Baumann, Bernd, Duggen, Lars, El-Busaidy, Said, Wolff, Marcus   +3 more
core  

Quantitative Photoacoustic Imaging in the Acoustic Regime using SPIM

, 2017
While in standard photoacoustic imaging the propagation of sound waves is modeled by the standard wave equation, our approach is based on a generalized wave equation with variable sound speed and material density, respectively.
Beigl, Alexander, Elbau, Peter, Sadiq, Kamran, Scherzer, Otmar   +3 more
core   +1 more source

Climate change effects on biomass and greenhouse gas emissions are ameliorated by nontoxic endophytes in southeastern USA transition zone tall fescue pastures

Grassland Research, EarlyView.
Tall fescue produces more biomass and less carbon dioxide from the soil when it contains its beneficial fungal endophyte. Increased temperatures projected with climate change reduce fescue biomass, while altered rainfall frequency does not. Altering rainfall frequency and increasing temperatures can reduce carbon dioxide emissions from soil.
Rebecca K. McGrail, Jonathan D. Moore, A. Elizabeth Carlisle, Jim A. Nelson, Rebecca L. McCulley   +4 more
wiley   +1 more source