Article
Engineering, Electrical & Electronic
Yang Wu, Minfeng Chen, Jiexuan Cai, Zhiyuan Xu, Fangzhou Jin, Yongkang Zhang, Wei Wang, Yang Ran, Dongmei Zhang, Bai-Ou Guan
Summary: Accurate and timely assessment of malignant tumors is critical for improving the cure rate. Fluorescent sensing and imaging technology has attracted attention due to its high sensitivity and spatial resolution. This study systematically investigated the optimization design of a fiber-optic sensor, achieving a low detection limit and response time, as well as the ability to reveal the hypoxic gradient of tumors, offering potential for disease classification and margin identification.
IEEE SENSORS JOURNAL
(2022)
Article
Physics, Applied
W. J. Setzer, M. Ivory, O. Slobodyan, J. W. Van der Wall, L. P. Parazzoli, D. Stick, M. Gehl, M. G. Blain, R. R. Kay, H. J. McGuinness
Summary: This study demonstrates fluorescence detection from a trapped ion using SPADs integrated with a microfabricated surface ion trap. High fidelity detection of Yb-174(+) ions is achieved, with a low dark count rate of 1.2 kcps. The fidelity is limited by laser scatter, dark counts, and heating effects on the ion position.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Jonas Hedman, Ronnie Mogensen, Reza Younesi, Fredrik Bjorefors
Summary: This study demonstrates the possibility of directly detecting plating of sodium metal in sodium-ion batteries and provides information for identifying early warning signs through integrated optical fiber sensors. Full cells with integrated fiber optic sensors show good cycling performance and prove plating during sodiation at different rates.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Guo Tian, Yin-Zhu Han, Qian Yang
Summary: A fluorescent probe was designed and synthesized for sensitive and selective detection of Zn2+ and Cd2+. The probe exhibited selective fluorescence in the presence of other metal ions and changed the color of the solution. The fluorescence intensity of the probe showed a linear relationship with the concentration of Zn2+ and Cd2+, with low detection limits.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Yue Zhou, Zhihao Yi, Dan Song, Hongliang Wang, Sanping Zhao, Feng Long, Anna Zhu
Summary: The study developed a novel two-in-one integrated bioassay for simultaneous on-site determination of Hg2+ and Pb2+ with high detection sensitivity. By utilizing selective FNAs biosensors and excellent time-resolved effect of the ABFB, heavy metal ions could be rapidly and accurately detected in a short time.
ANALYTICA CHIMICA ACTA
(2022)
Article
Instruments & Instrumentation
Yifan Duan, Yang Zhang, Fang Wang, Yuting Sun, Ming Chen, Zhenguo Jing, Qiao Wang, Mengdi Lu, Wei Peng
Summary: This research introduces and demonstrates a high-performance mercury ion sensor based on the 4-MPY modified TFBG-SPR sensing platform, with high selectivity, strong practicability, and a detection limit in the sub-nM range. By forming a stable (4-MPY)-Hg-(4-MPY) structure on the sensor surface, the sensor can efficiently capture toxic mercury ions in the environment and exhibit good selectivity and reliability in actual water samples.
Article
Engineering, Environmental
Dan Wang, Li-Jie Zhang, Ming-Hui Liu, Fang-Fang Du, Ze-Ya Shen, Longwei He, Li-Li Wang
Summary: A rhodamine-functionalized carbon dots (o -CDs-Rho) was synthesized and used for sensing UO22+ through an aggregation-enhanced FRET strategy. The weak FRET efficiency (16.2%) of o-CDs-Rho in dispersed solution is significantly enhanced (>77.2%) after UO22+ triggered aggregation. This is the first ratiometric fluorescence sensor with an inverse change of fluorescence intensity at dual emission wavelengths under single-wavelength excitation for UO22+.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Chemistry, Analytical
Vlastimil Matejec, Ivan Kasik, Ivo Barton
Summary: This review article focuses on fiber-optic nanosensors for chemical sensing based on silica and plastic optical fibers. Four types of fiber-optic chemical nanosensors and their preparation, materials, and sensing characteristics are discussed. Examples of fiber-optic nanobiosensors and other related studies are also included.
Article
Engineering, Electrical & Electronic
C. W. Ooi, U. Waldo, Y. Norazriena, K. S. Lim, S. T. Tan, Z. Rozalina, H. Ahmad
Summary: In this work, metal ion detection using L-Cysteine functionalised gold-coated tilted fiber Bragg grating (Au-TFBG) was demonstrated. The sensor showed high reactivity and sensitivity towards different metal ions, especially Cu2+.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Reinhold Blumel, Nikodem Grzesiak, Nhung H. Nguyen, Alaina M. Green, Ming Li, Andrii Maksymov, Norbert M. Linke, Yunseong Nam
Summary: To scale up quantum processors and achieve quantum advantage, a new gate-optimizing principle has been introduced to trade off negligible amounts of gate fidelity for substantial savings in power, leading to significant increases in gate speed and/or qubit connectivity. This method has been experimentally verified on a trapped-ion quantum computer and provides increased robustness to mode drift.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Sasa Wang, Tong Zhu, Randy Sabatini, Amin Morteza Najarian, Muhammad Imran, Ruyan Zhao, Pan Xia, Lewei Zeng, Sjoerd Hoogland, Dwight S. Seferos, Edward H. Sargent
Summary: This study investigates the effect of donor-acceptor doping on the electro-optic efficiency, finding that La-doped BaTiO3 exhibits a higher electro-optic coefficient but a decreased frequency response. Impedance spectroscopy reveals a correlation between frequency-dependent electro-optic behavior and ion migration. Theoretical calculations predict that La doping reduces the ion migration barrier but it can be recovered with further Mn doping.
ADVANCED MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Xia Li, Yu Li, Chenxiao Wang, Wa Jin, Guangwei Fu, Xinghu Fu, Weihong Bi
Summary: In this study, we conducted an experimental investigation on a highly sensitive, low-concentration chloride ion fiber-optic probe using a Fabry-Perot interferometer. By wet depositing a sensitive Ag/alginate nanocomposite film on the surface of the probe, the sensitivity of the probe was measured as 24.67 nm/% by observing the peak wavelength drift.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Optics
Assim Verma, Banshi D. Gupta
Summary: A fiber optic surface plasmon resonance (SPR) based phosphate ion sensor was fabricated using cobalt oxide (CoO) coating over the gold-coated unclad core of the fiber. The sensor showed irreversible behavior in acidic solution, but demonstrated good sensitivity and selectivity within a specific concentration range for phosphate ion detection.
Article
Quantum Science & Technology
Mingyu Kang, Qiyao Liang, Ming Li, Yunseong Nam
Summary: To achieve high-fidelity operations on a large-scale quantum computer, the parameters of the physical system must be efficiently characterized with high accuracy. For trapped ions, the entanglement between qubits is mediated by the motional modes of the ion chain, and thus characterizing the motional-mode parameters becomes essential. In this paper, physical models are developed to accurately predict both magnitude and sign of the Lamb-Dicke parameters when the modes are probed in parallel. An advanced characterization protocol is also devised to significantly shorten the characterization time compared to the conventional method.
QUANTUM SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Jan Werner, Mathias Belz, Karl-Friedrich Klein, Tong Sun, K. T. V. Grattan
Summary: Optical and fiber optic techniques for chemical sensing have become popular in biomedical and industrial processes, with a focus on pH levels and oxygen concentration. Different optical platform designs and fabrication methods, along with the impact of fiber structures on sensor performance are discussed. Applications include challenging measurement environments where conventional sensors may not be suitable, due to the advantages of lightweight, ease of miniaturization, multiplexing capability, and low cost.
