Article
Optics
Zongyu Wu, Ziwen Wang, Haoqiang Xie, Yiming Wang, Haoqi He, Shuming Nie, Jian Ye, Li Lin
Summary: Image-guided and robotic bronchoscopy is a promising technique for minimally invasive biopsy and surgery of peripheral pulmonary nodules or lesions. By utilizing near-infrared (NIR) optical imaging and spectroscopy, it is possible to improve the accuracy of bronchoscopic navigation. However, limitations such as light scattering and background interference hinder the detection of diseased lesions that are buried under tissue surfaces.
Article
Optics
Shumin Du, Zhongjiang Chen, Da Xing
Summary: The proposed method introduces a novel spectral interferometric depth-resolved photoacoustic viscoelasticity imaging technique, achieving internal visible microscale viscoelasticity imaging and demonstrating depth-resolved performance in one scan.
Article
Spectroscopy
Alberto Villar, Santos Merino, Roberto A. Boto, Javier Aizpurua, Aitzol Garcia, Mikel Azkune, Joseba Zubia
Summary: The control of wine production requires extensive chemical analysis, with a focus on quantifying total and free SO2. Existing methods lack reproducibility and require sample treatment for SO2 extraction. This study proposes a new method using Surface-Enhanced Raman Spectroscopy (SERS) and Density Functional Theory (DFT) calculations to identify key molecules' vibrational modes contributing to free SO2 concentration. The combination of theoretical predictions and experimental outcomes allows for real-time monitoring, potentially enabling portable SERS detection for in-field measurements.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Jun Wang, Tingting Li, Jen-Shyang Ni, Heng Guo, Tianyi Kang, Zeshun Li, Menglei Zha, Songbo Lu, Chen Zhang, Weizhi Qi, Lei Xi, Kai Li
Summary: A novel photoacoustic force-guided nanotherapeutic system based on a near-infrared-absorbing semiconducting polymer has been reported, showing significantly improved tumor accumulation and deep tissue penetration for enhanced phototherapeutic efficacy.
Article
Multidisciplinary Sciences
Yiyong Guo, Bing Han, Junting Du, Shanshan Cao, Hua Gao, Ning An, Yiwei Li, Shujie An, Zengling Ran, Yue Lin, Wencai Ren, Yunjiang Rao, Baicheng Yao
Summary: This study demonstrated kilometers long graphene-coated optical fiber (GCF) with unusually high thermal diffusivity, enabling rapid thermooptical response and long-distance sensing systems, providing a novel platform for optical fiber sensing applications.
Article
Agronomy
Olga Monago-Maran, Nils Kristian Afseth, Svein Halvor Knutsen, Sileshi Gizachew Wubshet, Jens Petter Wold
Summary: This study demonstrates the feasibility of using Raman spectroscopy for quantification of soluble solids and individual sugars in apples, achieving high estimation accuracy with multivariate calibration models. Results show that identifiable Raman bands related to target sugars can be highlighted in regression coefficients for all calibration models, indicating the potential for accurate estimation of sugar content in apples using Raman spectroscopy.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2021)
Article
Optics
Rui Cao, Jingjing Zhao, Lei Li, Lin Du, Yide Zhang, Yilin Luo, Laiming Jiang, Samuel Davis, Qifa Zhou, Adam de la Zerda, Lihong Wang
Summary: Optical-resolution photoacoustic microscopy can visualize wavelength-dependent optical absorption at the cellular level. However, it has a limited depth of field. To overcome this limitation, needle-shaped beam photoacoustic microscopy is proposed. This approach extends the depth of field and provides new perspectives for slide-free intraoperative pathological imaging and in vivo organ-level imaging.
Article
Optics
L. Di Sieno, E. Ferocino, E. Conca, V Sesta, M. Buttafava, F. Villa, F. Zappa, D. Contini, A. Torricelli, P. Taroni, A. Tosi, A. Pifferi, A. Dalla Mora
Summary: This study demonstrates the performance of a fast-gated digital silicon photomultiplier (SiPM) with an overall active area of 8.6 mm(2), which overcomes the photon collection limitations of established time-gated single-pixel detectors by orders of magnitude, enabling deep investigations within scattering media and high signal-to-noise ratios at late photon arrival times.
Article
Physics, Multidisciplinary
Dominik Wild, Cathrin Theiss, Gerhard Holl
Summary: The identification of energetic materials in containments is a crucial challenge for safety and security. The combined laser drilling method with subsequent Raman spectroscopic measurements through microscopic bore holes offers a solution to quickly and reliably identify target substances, even when shielded by covering materials.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Chemistry, Analytical
Benjamin Gardner, Jennifer Haskell, Pavel Matousek, Nicholas Stone
Summary: Raman spectroscopy is increasingly being used in medical settings, but there are barriers due to the complexity of biological materials. Principal component analysis (PCA) is widely used but results may be unstable. Guided PCA (GPCA) is proposed as a method to ensure consistent ranking of key target moieties in spectral analysis.
Article
Physics, Multidisciplinary
Ilan Shlesinger, Isabelle M. Palstra, A. Femius Koenderink
Summary: An experiment demonstrating waveguide-addressable sideband-resolved surface-enhanced Raman scattering (SERS) using a hybrid plasmonic-photonic resonator is reported. The hybrid resonator consists of a 1D photonic crystal cavity decorated with a sub-20 nm gap dimer nanoantenna. The SERS signal strength is comparable to state-of-the-art purely plasmonic systems, and Fano line shapes are observed in the SERS enhancement of organic molecules.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Hongyu An, Longfei Wu, Laurens D. B. Mandemaker, Shuang Yang, Jim de Ruiter, Jochem H. J. Wijten, Joris C. L. Janssens, Thomas Hartman, Ward van der Stam, Bert M. Weckhuysen
Summary: The study successfully monitored the process of carbon dioxide reduction to hydrocarbons using time-resolved Raman spectroscopy, and found that anodic treatment and surface oxide reduction of the copper electrode can improve CO2RR efficiency and time resolution.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Electrical & Electronic
Kunhe Zhan, Lei Wang, Zhongjiang Chen, Da Xing
Summary: A dual-modality endoscope probe with a diameter of 1 mm was proposed for simultaneously detecting the lipid core and intraplaque hemorrhage (IPH). The system composed of photoacoustic imaging (PAI) and near-infrared auto-fluorescence imaging (NIRAFI) markers was capable of accurately imaging IPH and lipid core expansion.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Materials Science, Ceramics
Yaxiong He, Qifan Wen, Chuan Ke, Ziran Qian, Dongye Zhao, Wanxue Li, Min Xu, Tao Xu, Yong Zhang, Yong Zhao
Summary: This study investigated the time evolution process of laser-induced plasma of Er2O3 samples in air at different pressures using time-resolved picosecond laser-induced breakdown spectroscopy. The results showed that the pressure-time windows with high signal-to-background ratio and high signal-to-noise ratio under LTE conditions were determined. The depth resolution of the analysis of anti-corrosion Er2O3 ceramic materials can be controlled by the environmental gas pressure.
CERAMICS INTERNATIONAL
(2023)
Article
Dermatology
Chloe J. Chua, Prabodh K. Pandey, Kristen M. Kelly, Liangzhong Xiang
Summary: This study investigates the feasibility of a hybrid treatment modality for port wine birthmark, combining photoacoustic (PA) guided ultrasound (US) focusing. The proposed methodology allows for selective targeting of the vasculature while minimizing damage to neighboring tissue.
LASERS IN SURGERY AND MEDICINE
(2023)
Article
Biochemical Research Methods
Shuo Chen, Caigang Zhu, Christopher Hoe-Kong Chui, Gyanendra Sheoran, Bien-Keem Tan, Quan Liu
JOURNAL OF BIOPHOTONICS
(2017)
Article
Computer Science, Interdisciplinary Applications
Gaoming Li, Haijun Li, Xiyu Duan, Quan Zhou, Juan Zhou, Kenn R. Oldham, Thomas D. Wang
IEEE TRANSACTIONS ON MEDICAL IMAGING
(2017)
Article
Multidisciplinary Sciences
Zhenghong Gao, Gaoming Li, Xue Li, Juan Zhou, Xiyu Duan, Jing Chen, Bishnu P. Joshi, Rork Kuick, Basma Khoury, Dafydd G. Thomas, Tina Fields, Michael S. Sabel, Henry D. Appelman, Quan Zhou, Haijun Li, Ken Kozloff, Thomas D. Wang
SCIENTIFIC REPORTS
(2017)
Article
Optics
Jian Kang, Xiang Li, Quan Liu
Article
Biochemical Research Methods
Jian Ju, Sagar Regmi, Afu Fu, Sierin Lim, Quan Liu
JOURNAL OF BIOPHOTONICS
(2019)
Article
Optics
Yongping Lin, Tse-Shao Chang, Jing Chen, Gaoming Li
Summary: The dual-axis confocal configuration offers high axial resolution and long working distance for depth-resolved fluorescence spectroscopy. By using a dual-axis illumination configuration, it is possible to locate the target layer with high resolution and collect fluorescence spectra from microscopic regions.
Article
Computer Science, Information Systems
Chao-Mao Hsieh, Manish Verma, Quan Liu
Proceedings Paper
Medical Laboratory Technology
Joshua W. Su, Qiang Wang, Yao Tian, Leigh Madden, Erica M. L. Teo, David L. Becker, Quan Liu
CLINICAL AND PRECLINICAL OPTICAL DIAGNOSTICS II
(2019)
Proceedings Paper
Medical Laboratory Technology
Hsieh Chao-Mao, Liu Quan
CLINICAL AND PRECLINICAL OPTICAL DIAGNOSTICS II
(2019)
Proceedings Paper
Instruments & Instrumentation
Quan Liu, Yoo Yeu Cian, Shuo Chen, Clint Perlaki
REAL-TIME MEASUREMENTS, ROGUE PHENOMENA, AND SINGLE-SHOT APPLICATIONS III
(2018)
Article
Computer Science, Information Systems
Shuo Chen, Lingmin Kong, Wenbin Xu, Xiaoyu Cui, Quan Liu
Proceedings Paper
Engineering, Biomedical
Quan Liu, Clement Yuen, Keren Chen, Jian Ju, Aoli Xiong, Peter Preiser
PLASMONICS IN BIOLOGY AND MEDICINE XV
(2018)
Article
Nanoscience & Nanotechnology
Shuo Huang, Wei Liu, Jing Huang, Xiaochen Wang, Cangjie Yang, Hassan Bohra, Quan Liu, Mingfeng Wang
ACS APPLIED BIO MATERIALS
(2018)
Proceedings Paper
Microscopy
Haijun Li, Gaoming Li, Xiyu Duan, Thomas D. Wang
ENDOSCOPIC MICROSCOPY XII
(2017)
Proceedings Paper
Microscopy
Xiyu Duan, Haijun Li, Gaoming Li, Xue Li, Kenn R. Oldham, Thomas D. Wang
ENDOSCOPIC MICROSCOPY XII
(2017)
