Results 91 to 100 of about 1,555,141 (308)

Folded-optics-based quartz-enhanced photoacoustic and photothermal hybrid spectroscopy

Photoacoustics
Folded-optics-based quartz-enhanced photoacoustic and photothermal hybrid spectroscopy (FO-QEPA-PTS) is reported for the first time. In FO-QEPA-PTS, the detection of the photoacoustic and photothermal hybrid signal is achieved through the use of a custom
Ruyue Cui, Hongpeng Wu, Frank K. Tittel, Vincenzo Spagnolo, Weidong Chen, Lei Dong   +5 more
doaj   +1 more source

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

Thermal Diffusion of a Two Layer System

, 1995
In this paper thermal conductivity and thermal diffusivity of a two layer system is examined from the theoretical point of view. We use the one dimensional heat diffusion equation with the appropriate solution in each layer and boundary conditions at the
A. M. Mansanares, A. Mandelis, A. Rosencwaig, F. G. Bass, G. González de la Cruz, H. Vargas, M. I. Kaganov, M. J. Adams, M. Ya. Granovski, M. Ya. Granovskiy, O. Pessoa, P. Charpentier, T. Tominaga, V. S. Bochkov, W. Karplus, Yu. G. Gurevich, Yu. G. Gurevich, Yu. G. Gurevich   +17 more
core   +1 more source

Systematic Targeting of GD2‐Positive Neuroblastoma Tumors With a Photooncolytic Phage Nanovector Platform

Advanced Science, EarlyView.
A tumor‐penetrating photooncolytic phage is developed for selectively targeting and delivering photosensitizers to GD2‐positive Neuroblastoma cells. Upon light activation, it precisely induces oncolysis of GD2‐positive cells with no effect on GD2‐negative ones.
Suleman Khan Zadran, Nicola Facchinello, Piergiuseppe De Rosa, Roberto Saporetti, Paolo Emidio Costantini, Luca Ulfo, Michela Nigro, Annapaola Petrosino, Lucia Pappagallo, Sara Aloisi, Giorgio Milazzo, Zainul Abe Din, Alberto Rigamonti, Leonardo Flora, Martina Santulli, Leonardo Cimadom, Giampaolo Zuccheri, Mattia Zangoli, Manuele Di Sante, Matteo Di Giosia, Francesca Di Maria, Roberto Bernardoni, Eveline Barbieri, Matteo Calvaresi, Alberto Danielli, Giovanni Perini   +25 more
wiley   +1 more source

Boron Difluoride Formazanate Dye With Donor Planarization Engineering for 1060 nm Laser Activated Photothermal Theranostics

Advanced Science, EarlyView.
The donor engineering strategy enhances the planarity of the π‐conjugated molecular framework, thereby promoting stronger intramolecular charge transfer (ICT). This structural refinement in FBDFDPA leads to a pronounced bathochromic shift in absorption from the NIR‐I to the NIR‐II region, enabling effective photothermal therapy (PTT) for tumors within ...
Kang Xu, Mengchen Luo, Weili Wang, Tian Zhang, Yang Chen, Jinjun Shao, Peng Chen, Xiaochen Dong, Yu Cai   +8 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

A Herbal‐Piezoelectric Heterojunction Strategy to Potentiate Bacterial Cuproptosis‐Like Death and Remodel the Inflammatory Microenvironment in Infection‐Associated Implant Osteomyelitis

Advanced Science, EarlyView.
A titanium implant coating integrating berberine and copper‐doped strontium titanate leverages ultrasound to compromise bacterial membranes and induce cuproptosis‐like death. This approach resolves S. aureus infections in osteomyelitis models while suppressing inflammation and promoting osseointegration, demonstrating a dual‐functional strategy against
Guannan Zhang, Zehao Li, Ying Lu, Jianbo Song, Xingyu Liang, Peide Han, Xiaohong Yao, Yongqiang Yang, Xiangyu Zhang   +8 more
wiley   +1 more source

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

A “3+2” Cooperation Pattern of Amphipathic AIE Phototheranostic System for Multimodal Image‐Guided Synergistic Type I/II Photodynamic‐Photothermal Therapy

Advanced Science, EarlyView.
A “3+2” cooperation pattern of amphipathicity PTA (named TDTMSB) with aggregation‐induced emission (AIE) features is designed and synthesized to perform near‐infrared I/II fluorescence imaging, photoacoustic imaging, photothermal imaging, and Type I/II photodynamic therapy (PDT)‐photothermal therapy (PTT) synergistic phototherapy for malignant tumors ...
Haijun Ma, Yibo An, Yuanyuan Han, Feifan Zhao, Yunfei Zuo, Guokang He, Zhixiang Lu, Ryan T. K. Kwok, Jianwei Sun, Jacky W. Y. Lam, Yen Wei, Ben Zhong Tang   +11 more
wiley   +1 more source

Observation of Near‐Infrared Photothermal and Photoacoustic Effects in a Metallosupramolecular Trefoil Knot

Angewandte Chemie, EarlyView.
A metallosupramolecular trifold knot has been prepared from three bisimidazole ligands and three dinuclear half‐sandwich metal complexes. The topology of the trifold knot enforces strong π⋅⋅⋅π interactions between the building blocks, which results in near‐infrared (NIR) light absorption.
Ye Lu, Zhi‐Jie Li, Yi Li, Lu An, Shi‐Ping Yang, F. Ekkehardt Hahn   +5 more
wiley   +2 more sources