Article
Optics
Ali Hosseinnia, Meena Raveesh, Armand Dominguez, Maria Ruchkina, Mark Linne, Joakim Bood
Summary: In this study, a novel method is presented to control the shape of spectra using 2-beam hybrid femtosecond/nanosecond coherent anti-Stokes Raman scattering (RCARS). The method is experimentally and theoretically demonstrated by selectively exciting a species via field-free molecular alignment. The RCARS signal is resolved in both spectral and temporal domains within a single-shot acquisition.
Letter
Computer Science, Information Systems
Linjing Huang, Zuyuan He, Xinyu Fan
Summary: A simplified single-end Rayleigh/Brillouin hybrid distributed sensing system is proposed and experimentally demonstrated, which can simultaneously measure static parameters and dynamic parameters by integrating BOTDA for static parameters and phi-OTDR for dynamic parameters. A high-performance hybrid system is achieved by carefully designing parameters considering the interaction between Rayleigh and Brillouin processes.
SCIENCE CHINA-INFORMATION SCIENCES
(2023)
Article
Instruments & Instrumentation
Lisa Ishikawa, Taiichi Shikama, Takayuki Kakuno, Takato Watanabe, Mazin Jouda, Masahiro Hasuo
Summary: This study measured the photoluminescence spectra of diamond nanoparticles containing negative nitrogen vacancy centers using a spectroscopy system and an endoscope. The temperature dependence of the spectra was obtained, providing important insights into the material properties.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Engineering, Electrical & Electronic
Ligang Huang, Bowen Zheng, Shunli Liu, Laiyang Dang, Chaoze Zhang, Tianyu Guan, Lei Gao, Wei Huang, Guolu Yin, Tao Zhu
Summary: An ultra-widely tunable acousto-optic add-drop filter based on acoustically-induced polarization conversion of cladding-etched single-mode fiber is proposed and demonstrated. It covers a wavelength range from 1081 nm to 1582 nm with a tuning band larger than 500 nm. The filter has reconfigurable band-pass and band-rejection filtering characteristics, and offers advantages such as ultra-wide wavelength tuning range, fast tuning speed, simple fabrication, and zero frequency shift. It has potential applications in WDM communication, ultra-wide tunable lasers, signal processing, swept-source optical coherence tomography (SS-OCT), and wideband spectroscopy.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yuanyu Gu, Rafael Pinol, Raquel Moreno-Loshuertos, Carlos D. S. Brites, Justyna Zeler, Abelardo Martinez, Guillaume Maurin-Pasturel, Patricio Fernandez-Silva, Joaquin Marco-Brualla, Pedro Tellez, Rafael Cases, Rafael Navarro Belsue, Debora Bonvin, Luis D. Carlos, Angel Millan
Summary: The generation of temperature gradients on nanoparticles heated externally by a magnetic field is crucial in magnetic hyperthermia therapy. However, the low heating power of magnetic nanoparticles limits the technique's implementation. This paper reports the real-time measurement of local temperature on gamma-Fe2O3 magnetic nanoheaters, showing that even within health safety limits, local temperature increments are sufficient to cause cell death, demonstrating the feasibility of local hyperthermia.
Article
Chemistry, Multidisciplinary
Yuanyu Gu, Rafael Pinol, Raquel Moreno-Loshuertos, Carlos D. S. Brites, Justyna Zeler, Abelardo Martinez, Guillaume Maurin-Pasturel, Patricio Fernandez-Silva, Joaquin Marco-Brualla, Pedro Tellez, Rafael Cases, Rafael Navarro Belsue, Debora Bonvin, Luis D. Carlos, Angel Millan
Summary: The generation of temperature gradients on nanoparticles by an external magnetic field is crucial in magnetic hyperthermia therapy. However, the low heating power of magnetic nanoparticles at human-allowed conditions limits the technique's implementation. Local intracellular hyperthermia holds promise as an alternative, as it achieves cell death with small amounts of heat at thermosensitive intracellular sites. Reliable intracellular temperature measurements are needed to resolve the discrepancy between experimental and theoretical predictions.
Article
Chemistry, Analytical
T. Martan, V. Prajzler, D. Mares
Summary: The paper introduces the design and development of two types of sensors for the local detection of gaseous carbon dioxide on a microscopic scale. Both sensors exhibit good linearity and sensitivity in the range of 0%-10.6% CO2 concentration. The second sensor, based on a 3 μm silica glass taper tip, is particularly suitable for laboratory testing of microorganisms and cells that actively consume gaseous carbon dioxide.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Review
Chemistry, Analytical
Nana Yang, Jingjing Xu, Fan Wang, Fan Yang, Danhong Han, Shengyong Xu
Summary: Temperature plays a significant role in cellular metabolism and biochemical activities. This study provides an overview of two important technologies, fluorescence nano-thermometry and micro-/nano-sized thin-film thermocouples, used to monitor the local temperatures of individual living cells. The study also suggests a method for combining these technologies into a hybrid measuring system.
Article
Multidisciplinary Sciences
Sandor Guba, Barnabas Horvath, Istvan Szalai
Summary: This article introduces a simple method to characterize the heating efficiency of magnetic fluids used in hyperthermia treatment, namely by measuring the specific loss power with direct temperature detection. The study uses a double cell differential thermometric system to compensate for the self-heating of metallic sensors in an alternating magnetic field and electromagnetic interference. The experimental results show that the specific loss power is proportional to the frequency and has a quadratic dependence on the field strength in the low field strength region, thus calculating the intrinsic loss power of the fluid.
Article
Materials Science, Multidisciplinary
Weijie Li, Tiejun Liu, Huangbin Xiang
Summary: A novel leakage detection method based on active thermometry and fiber Bragg grating was proposed, which utilized quasi-distributed fiber optic temperature sensing to detect and locate pipeline leaks. The feasibility of the method was validated through finite element simulation and experimental investigation, showing good agreement between simulation and experimental results. The effectiveness of the proposed method for leakage detection was confirmed by the study.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2021)
Article
Chemistry, Analytical
Lin Chen, Zhao Huang, Yuzheng Mao, Biqiang Jiang, Jianlin Zhao
Summary: In this work, a new algorithm based on the discrete multi-point demodulation in the sinusoidal modulation period is proposed for an open-loop fiber-optic gyroscope (FOG). The algorithm enables stable control and angular velocity calculation with suppressed gyro error, significantly reducing processing power requirements and simplifying the gyro circuit. A digital FOG with a volume of only 25 x 20 x 40 mm³ based on this algorithm achieves low bias instability, small angle random walk, fast startup time, and wide bandwidth, satisfying the requirements of navigation and control applications such as unmanned driving.
Article
Biology
Domenica Ippolito, Saurabh Thapliyal, Dominique A. Glauser
Summary: The study elucidates the molecular mechanism controlling the cell activation-dependent nuclear translocation of CMK-1 in thermosensory neurons, showing that intracellular Ca2+ concentration elevation and Ca2+/CaM binding play key roles in this process. This mechanism enables the encoding of opposite nuclear signals in different neuron types and is essential for experience-dependent behavioral plasticity and gene transcription control. Similar mechanisms may exist in other organisms and sensory modalities governed by conserved regulators like CaMKI/IV.
Article
Engineering, Electrical & Electronic
Yuan-Hung Lin, Bo-Hong Zheng, Likarn Wang
Summary: The new fiber-optic perimeter intrusion detection system utilizes a single-mode fiber as a disturbance sensor, and interference between lights from two resonators is used for intrusion detection. The experimental results show that the system achieves a high alarm rate and zero false alarm rate.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Abian B. Socorro-Leranoz, Kontxi I. Aginaga-Etxamendi, Silvia Diaz, Aitor Urrutia, Ignacio Del Villar, Ignacio R. Matias
Summary: This paper proposes the design of an etched single-mode-multimode-single-mode (E-SMS) fiber-optic-based structure as a multimode interference refractometer for detecting in situ ice formation on different surfaces. The sensor provides higher sensitivity and periodical interferometry bands compared to a basic SMS structure, enabling measurements of surrounding refractive indices with repeatability and robustness. Experimental results demonstrate that the structure can detect the freezing-thawing process of water inside a freezer between -20 degrees C and +20 degrees C. The study also presents a proof of concept for a simple technology applicable in various scenarios such as smart cities, avionics, structural health monitoring (SHM), and cold chain management.
IEEE SENSORS JOURNAL
(2023)
Review
Engineering, Electrical & Electronic
Fufei Pang, Lina Xiang, Huanhuan Liu, Liang Zhang, Jianxiang Wen, Xianglong Zeng, Tingyun Wang
Summary: Vortex beams with phase or polarization singularity in their center part have unique features and applications in fields such as optical communication and optical tweezer. Compared to traditional Gaussian beams, vortex beams offer more freedom in optical sensing by controlling spin, orbital phase, and polarization. This review discusses the theory of polarization and phase vortices, as well as the generation of vortex beams in optical fiber and their sensing applications, aiming to inspire further research and development in fiber vortex for sensing applications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Matvey V. Roshchin, Mikhail E. Matlashov, Victor N. Lerusalimsky, Pavel M. Balaban, Vsevolod V. Belousov, Gyorgy Kemenes, Kevin Staras, Evgeny S. Nikitin
Article
Neurosciences
Matvey Roshchin, Yulia G. Ermakova, Aleksandr A. Lanin, Artem S. Chebotarev, Ilya V. Kelmanson, Pavel M. Balaban, Aleksei M. Zheltikov, Vsevolod V. Belousov, Evgeny S. Nikitin
NEUROSCIENCE LETTERS
(2018)
Article
Biochemistry & Molecular Biology
Julia Gordeeva, Natalya Morozova, Nicolas Sierro, Artem Isaev, Tomas Sinkunas, Ksenia Tsvetkova, Mikhail Matlashov, Lidija Truncaite, Richard D. Morgan, Nikolai V. Ivanov, Virgis Siksnys, Lanying Zeng, Konstantin Severinov
NUCLEIC ACIDS RESEARCH
(2019)
Article
Biochemistry & Molecular Biology
Natalie M. Mishina, Yulia A. Bogdanova, Yulia G. Ermakova, Anastasiya S. Panova, Darla A. Kotova, Dmitry S. Bilan, Benjamin Steinhorn, Elias Sj Arner, Thomas Michel, Vsevolod V. Belousov
ANTIOXIDANTS & REDOX SIGNALING
(2019)
Article
Biochemistry & Molecular Biology
Arina G. Shokhina, Alexander Kostyuk, Yulia G. Ermakova, Anastasiya S. Panova, Dmitry B. Staroverov, Evgeny S. Egorov, Mikhail S. Baranov, Gijsbert J. van Belle, Dorthe M. Katschinski, Vsevolod V. Belousov, Dmitry S. Bilan
Article
Biochemistry & Molecular Biology
Oksana M. Subach, Tatiana A. Kunitsyna, Olga A. Mineyeva, Alexander A. Lazutkin, Dmitri V. Bezryadnov, Natalia V. Barykina, Kiryl D. Piatkevich, Yulia G. Ermakova, Dmitry S. Bilan, Vsevolod V. Belousov, Konstantin V. Anokhin, Grigori N. Enikolopov, Fedor V. Subach
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2019)
Article
Biochemical Research Methods
Aleksandr A. Lanin, Artem S. Chebotarev, Matvei S. Pochechuev, Ilya Kelmanson, Daria A. Kotova, Dmitry S. Bilan, Yulia G. Ermakova, Andrei B. Fedotov, Anatoly A. Ivanov, Vsevolod V. Belousov, Aleksei M. Zheltikov
JOURNAL OF BIOPHOTONICS
(2020)
Article
Chemistry, Applied
Yulia G. Ermakova, Yulia A. Bogdanova, Nadezhda S. Baleeva, Snizhana O. Zaitseva, Elena B. Guglya, Alexander Yu. Smirnov, Marina B. Zagudaylova, Mikhail S. Baranov
Article
Cell Biology
Valeriy V. Pak, Daria Ezerina, Olga G. Lyublinskaya, Brandan Pedre, Pyotr A. Tyurin-Kuzmin, Natalie M. Mishina, Marion Thauvin, David Young, Khadija Wahni, Santiago Agustin Martinez Gache, Alexandra D. Demidovich, Yulia G. Ermakova, Yulia D. Maslova, Arina G. Shokhina, Emrah Eroglu, Dmitry S. Bilan, Ivan Bogeski, Thomas Michel, Sophie Vriz, Joris Messens, Vsevolod V. Belousov
Article
Multidisciplinary Sciences
Mikhail E. Matlashov, Daria M. Shcherbakova, Jonatan Alvelid, Mikhail Baloban, Francesca Pennacchietti, Anton A. Shemetov, Ilaria Testa, Vladislav V. Verkhusha
NATURE COMMUNICATIONS
(2020)
Article
Biochemistry & Molecular Biology
Ilya Kelmanson, Arina G. Shokhina, Daria A. Kotova, Matvei S. Pochechuev, Alexandra D. Ivanova, Alexander Kostyuk, Anastasiya S. Panova, Anastasia A. Borodinova, Maxim A. Solotenkov, Evgeny A. Stepanov, Roman Raevskii, Aleksandr A. Moshchenko, Valeriy V. Pak, Yulia G. Ermakova, Gijsbert J. C. van Belle, Viktor Tarabykin, Pavel M. Balaban, Ilya Fedotov, Andrei B. Fedotov, Marcus Conrad, Ivan Bogeski, Dorthe M. Katschinski, Thorsten R. Doeppner, Mathias Bahr, Aleksei M. Zheltikov, Vsevolod V. Belousov, Dmitry S. Bilan
Summary: Ischemic cerebral stroke is a major cause of death and disability in humans, but the molecular processes underlying its development are poorly understood. The study recorded the dynamics of intracellular pH and H2O2 during I/R and found a significant difference in the metabolic processes between in vivo and cultured neuron models. The findings highlight the limitations of cell culture as a predictor of metabolic events in vivo.
Article
Multidisciplinary Sciences
Ludmila A. Kasatkina, Chenshuo Ma, Mikhail E. Matlashov, Tri Vu, Mucong Li, Andrii A. Kaberniuk, Junjie Yao, Vladislav V. Verkhusha
Summary: In this study, the authors successfully achieved optogenetic manipulation and optical imaging using a transgenic mouse model, which enables non-invasive observation and control of cellular and organismal processes in deep tissues using near-infrared light.
NATURE COMMUNICATIONS
(2022)
Review
Biophysics
O. A. Koksharova, N. A. Safronov
Summary: This review focuses on the regulatory effects of bacterial secondary metabolites on photosynthesis in microalgae cells, highlighting their importance in microbial communities and potential as herbicides.
BIOPHYSICAL REVIEWS
(2022)
Article
Neurosciences
Y. G. Ennakova, M. Roshchin, A. A. Lanin, P. M. Balaban, A. M. Zheltikov, V. V. Belousov, E. S. Nikitin
ZHURNAL VYSSHEI NERVNOI DEYATELNOSTI IMENI I P PAVLOVA
(2020)
Article
Chemistry, Multidisciplinary
Pankaj Gaur, Oleksandr A. Kucherak, Yulia G. Ermakova, Volodymyr V. Shvadchak, Dmytro A. Yushchenko
CHEMICAL COMMUNICATIONS
(2019)