Article
Optics
Daiqi Xiong, Xu Wu, Muhammad Rosdi Abu Hassan, Trivikramarao Gavara, Wonkeun Chang
Summary: This study introduces a bandpass optical filter based on antiresonant hollow-core fiber, which allows customization of the passband location and width by tailoring the fiber design. The filter achieves low insertion loss and high suppression in the lossbands.
Article
Optics
Yong Li, Fei Teng, Bo Yang, Zhihao Zhang, Yafei Zhao, Yufei Zhang
Summary: This study analyzes the noise characteristics of HC-PCF IFOG and establishes a model to determine the main noise sources as well as an optimization method for its parameters.
Article
Nanoscience & Nanotechnology
Yaya Fang, Weiwei Lu, Peng Xu, Kaisheng Yao, Jun Zhang, Xuefeng Wei, Shuge Peng, Kunpeng Sun
Summary: In this study, a plasmon-mediated method was proposed to activate oxygen for the selective oxidation of benzyl alcohols. Hollow Ag@Pd core-shell nanoparticles were prepared and characterized, and it was found that visible light illumination is important for the selective oxidation. Electron paramagnetic resonance analysis and spectroscopic measurements revealed that the main active species responsible for the oxidation is 1O2, generated from the transformation of superoxide radicals center dot O2-. The plasmon-mediated nature of Ag@Pd was verified through wavelength-dependent performance. A plausible mechanism for the plasmonic activation of oxygen and selective oxidation of benzyl alcohols on Ag@Pd was proposed.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Jichao Zang, Charu Goel, Muhammad Rosdi Abu Hassan, Wonkeun Chang, Seongwoo Yoo
Summary: The unique characteristics of hollow core fibers make them attractive for designing inline fiber optic devices. We report a novel approach that uses a resonant band of single-ring antiresonant fiber to realize a high-performance hollow-core fiber polarizer. The device offers low transmission loss and a high polarization extinction ratio. These results encourage further development of other hollow-core fiber components.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Wenting Yang, Wei Wang, Haibin Chen, Xiongxing Zhang, Zilong Guo, Junying Zhang
Summary: A highly sensitive fiber-optic curvature sensor based on SMF and HCF has been proposed in this study, which can achieve high sensitivity measurement within a certain curvature range and exhibit low-temperature sensitivity.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Heliang Shen, Kan Chen, Kang Zou, Yijia Gong, Ran Bi, Xiaowu Shu
Summary: The novel system structure proposed for the resonant fiber optical gyroscope effectively solves the problem of length mismatch between rings and significantly reduces noise. Its sensitivity can approach the shot-noise-limited theoretical value with excellent noise suppression effects.
Article
Optics
Hao Zhang, Yanjie Chang, Yantao Xu, Chengzhen Liu, Xusheng Xiao, Jianshe Li, Xinxin Ma, Yingying Wang, Haitao Guo
Summary: In this paper, a seven-hole chalcogenide hollow-core anti-resonant fiber (HC-ARF) with touching cladding capillaries is designed and fabricated. The fiber is made from purified As40S60 glass using the stack-and-draw method and a dual gas path pressure control technique. The medium exhibits higher-order mode suppression properties and multiple low-loss transmission bands in the mid-infrared spectrum, with a measured fiber loss of 1.29 dB/m at 4.79 pm. These results pave the way for the fabrication and application of various chalcogenide HC-ARFs in mid-infrared laser delivery systems.
Article
Engineering, Electrical & Electronic
Yingxuan Liu, Chenyu Zhao, Ya-nan Zhang, Guoming Ma, Xuegang Li, Yong Zhao
Summary: The proposed electrically tunable optical fiber device, based on the electro-optic effect of liquid crystal and Mach-Zehnder interferometer, exhibits high sensitivity, low limit of detection, good repeatability, low cost, easy fabrication, and compact size, making it suitable for wavelength-tunable electro-optical devices, photoelectric switches, and electric field sensors.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Optics
Grzegorz Gomolka, Dariusz Pysz, Ryszard Buczynski, Michas Nikodem
Summary: This paper investigates the optical detection of oxygen in the A-band using tunable laser diode spectroscopy and explores the use of hollow-core optical fibers as an alternative to conventional gas absorption cells. The research presents a convenient, robust, and scalable all-fiber setup using a silica anti-resonant hollow-core fiber. The results show successful absorption spectra recording and detection limit achievement for oxygen, as well as the versatility of the sensing approach in simultaneously detecting oxygen and methane.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Engineering, Multidisciplinary
Bing Yue, Jianxun Feng, Weihong Liang, Haoran Zeng, Jin Tao, Guiyao Zhou, Xuguang Huang
Summary: A novel optical fiber sensor with high strain sensitivity achieved by antiresonance hollow core fiber is proposed in this study. The sensor, which can operate in transmission and reflection types, is capable of real-time and high-precision strain measurements in large temperature difference environments. This research is significant for studying the strain-sensitivity-enhancement effect and developing optical fiber sensors with anti-resonance hollow core fiber.
Article
Chemistry, Multidisciplinary
Wenxin Wei, Francesca Mazzotta, Ingo Lieberwirth, Katharina Landfester, Calum T. J. Ferguson, Kai A. Zhang
Summary: By designing core-shell structured porous nano-photoreactors, highly stable and recyclable photobiocatalysis is achieved. The core efficiently regenerates the enzymatic cofactor, while the shell traps and deactivates photogenerated active oxygen species, protecting the enzymatic material.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Crystallography
Ang Deng, Wonkeun Chang
Summary: In this study, the impact of adjusting two key structural parameters in antiresonant hollow-core fibers on low-loss mid-infrared beam delivery is investigated numerically, showing different behaviors under various conditions. An additional loss peak resembling resonance is observed in the long-wavelength limit of the first transmission band in antiresonant hollow-core fibers. It is found that the confinement loss in tubular-type hollow-core fibers is highly dependent on the core size, with the magnitude of the dependence varying with the cladding tube size. The loss scales with the core diameter to the power of approximately -5.4 for commonly used tubular-type hollow-core fiber designs.
Article
Materials Science, Multidisciplinary
Chan Zheng, Ziqiao Li, Tiantian Xu, Ling Chen, Fang Fang, Dai Wang, Pinqiang Dai, Qianting Wang, Xinyu Wu, Xiaohui Yan
Summary: Magnetic helical micro/nanoswimmers, inspired by E. coli bacterium, can perform controlled locomotion in various fluids and possess photothermal attributes and high surface areas. They are envisioned for applications in biomedical, environmental purification, etc.
APPLIED MATERIALS TODAY
(2021)
Article
Engineering, Electrical & Electronic
Kazunori Mukasa, Takeshi Takagi
Summary: Hollow core fibers (HCF) are innovative optical fibers that have the potential to surpass the limitations of conventional optical fibers. They offer advantages such as ultra-low loss, ultra-low nonlinearity, resistance to harsh conditions, and long interaction lengths with confined gases. This innovation has garnered attention, particularly in financial trading communication systems, due to their ultra-low latency characteristics. The development of a high-performance HCF with practical single mode (SM) properties, along with HCF connectors and cables for low latency transmissions, will be reported.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
Yiming Cai, Yifan Mai, Shen Xiang, Jianhong Shi, Qixin Zhu, Rong Li, Jinyan Li, Cheng Li, Dapeng Yan, Yingbin Xing
Summary: In this study, we successfully transmitted a 100 MW-peak-power ultrafast laser through a 5-m anti-resonant hollow-core fiber (AR-HCF) with a pumpable armored tube for air exhaust. The results highlight the significance of controlling air concentration in achieving high transmission efficiency and pulse quality.
FRONTIERS IN PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
Adrian Truszkiewicz, Dorota Bartusik-Aebisher, Lukasz Wojtas, Grzegorz Cieslar, Aleksandra Kawczyk-Krupka, David Aebisher
Summary: Artificial intelligence has entered the field of medical research, with neural networks being included in diagnostic instruments. Deep learning algorithms are particularly important in oncology, and this paper presents the use of neural networks to analyze MRI images for relaxometry. The application of a neural network helps eliminate aerated spaces in MRI images, and the algorithm has been implemented in MATLAB.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Zuzanna Bober, Rafal Podgorski, David Aebisher, Grzegorz Cieslar, Aleksandra Kawczyk-Krupka, Dorota Bartusik-Aebisher
Summary: Noninvasive measurements of H-1 Magnetic Resonance Imaging (MRI) relaxation times were used to evaluate Trastuzumab delivery in a 3D cell culture construct. The study utilized a bioreactor for the cell cultures and compared normal and breast cancer cells. Results showed that the relaxation time of cancer cells was lower than normal cells before and after treatment. The use of H-1 MRI relaxation times allows for the visualization of cell viability in response to treatment.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Editorial Material
Biochemistry & Molecular Biology
Alexander Greer, Jean Cadet
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Caroline Coradi Tonon, Alessandra Nara de Souza Rastelli, Chathuna Bodahandi, Goutam Ghosh, Tayyaba Hasan, Qianfeng Xu, Alexander Greer, Alan M. Lyons
Summary: Limited options exist for the treatment of periodontitis, and current methods like scaling and root planing are not sufficient. This study evaluated the effectiveness of a new superhydrophobic antimicrobial photodynamic therapy device as an adjuvant to scaling and root planing. The device significantly reduced periodontal pathogens, improved clinical parameters, and showed promising healing outcomes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Biochemistry & Molecular Biology
Wojciech Domka, Dorota Bartusik-Aebisher, Wiktoria Mytych, Klaudia Dynarowicz, David Aebisher
Summary: Head-neck cancers, particularly squamous cell carcinoma, have a high incidence rate worldwide and pose challenges in treatment. Photodynamic therapy (PDT) shows promise as a therapeutic approach for head, neck, and brain diseases, as it can induce apoptosis and necrosis in tumor cells through the generation of singlet oxygen or reactive oxygen radicals.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Andreis M. Durantini, Lloyd Lapoot, Shakeela Jabeen, Goutam Ghosh, Johirul Bipu, Serah Essang, Britney C. Singh, Alexander Greer
Summary: Although silica surfaces have been used in organic oxidations for the production of peroxides, the study of airborne singlet oxygen at interfaces is limited and has not found widespread advantages. In this study, prenyl phenol-coated silica and delivery of singlet oxygen through the gas phase were used to achieve significant selectivity for dihydrofuran formation over allylic hydroperoxide formation. The mechanism of selectivity was further investigated using air/nanoparticle interfaces and density functional theory calculations.
Review
Biochemistry & Molecular Biology
Malgorzata Oleksy, Klaudia Dynarowicz, David Aebisher
Summary: The introduction of new biomaterials has greatly improved the quality of human life in terms of health by enabling the development of fields such as medicine, tissue, and regenerative engineering. These materials, with their specific features like biocompatibility and ease of sterilization, have led to the availability of various implants, prostheses, tools, and surgical equipment. The use of biomaterials in tissue engineering and regenerative medicine strategies aims to restore damaged tissues by providing an ideal rate of regenerated tissue development.
Article
Biochemistry & Molecular Biology
Lloyd Lapoot, Shakeela Jabeen, Andres M. Durantini, Alexander Greer
Summary: This article presents a density functional theoretical (DFT) study on an O-1(2) oxidation process that leads to the formation of dihydrobenzofuran from glycocitrine, a natural homoallylic alcohol. The results indicate the interconversion between glycocitrine and an iso-hydroperoxide intermediate [R(H)O+-O-], which plays a crucial role in subsequent chemistry. The formation of allylic hydroperoxides through an O-1(2) 'ene' reaction is unlikely, and instead, the curvature of the glycocitrine ring facilitates the O-1(2) oxidation and the formation of the iso-hydroperoxide.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Review
Pharmacology & Pharmacy
Malgorzata Oleksy, Klaudia Dynarowicz, David Aebisher
Summary: Three-dimensional printing technology has been used for over 30 years in various industries such as automotive and aerospace. Its application in medicine has been limited to anatomical models, due to material limitations. Recent advances in innovative materials have led to the flourishing use of 3D printing in medicine and pharmacy, with notable developments in implant design, personalized biomedical models, and bioprinting for regenerative medicine. This review aims to characterize popular 3D printing techniques.
Article
Biology
Grzegorz Chrzanowski, Grzegorz Pasternak, David Aebisher, Klaudia Dynarowicz, Angelika Mysliwiec, Dorota Bartusik-Aebisher, Barbara Sosna, Grzegorz Cieslar, Aleksandra Kawczyk-Krupka, Rafal Filip
Summary: Crohn's disease is a chronic inflammatory bowel disease that cannot be fully cured. Quantitative and qualitative determination of metalloproteinases in inflammatory tissues is a useful diagnostic tool to differentiate inflammatory from non-inflammatory tissues in patients diagnosed with Crohn's disease.
Review
Biology
Grzegorz Pasternak, Grzegorz Chrzanowski, David Aebisher, Angelika Mysliwiec, Klaudia Dynarowicz, Dorota Bartusik-Aebisher, Barbara Sosna, Grzegorz Cieslar, Aleksandra Kawczyk-Krupka, Rafal Filip
Summary: Crohn's disease is a chronic inflammatory bowel disease that affects various parts of the human body. It causes a reduction in the functioning of the digestive system and significantly impacts quality of life. Accurate diagnosis requires a combination of methods including laboratory examinations, histopathology, and imaging techniques. Metalloproteinase analysis has also proved helpful in diagnosing changes associated with Crohn's disease.
Article
Biochemistry & Molecular Biology
Jennifer Otero-Gonzalez, Whitney Querini-Sanguillen, Daniel Torres-Mendoza, Ikhil Yevdayev, Sharon Yunayev, Kamrun Nahar, Barney Yoo, Alexander Greer, Denis Fuentealba, Jose Robinson-Duggon
Summary: This study reports on the formation of toluidine blue O (TBO) sulfoxide and investigates its mechanism using mass spectrometry (MS). The results indicate that the formation of TBO sulfoxide is a minor process, which occurs through a type I reaction. Additionally, the study also reveals the competitive nature between TBO photosulfoxidation and TBO photodemethylation.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Maria Przygoda, Dorota Bartusik-Aebisher, Klaudia Dynarowicz, Grzegorz Cieslar, Aleksandra Kawczyk-Krupka, David Aebisher
Summary: This review explores the application of photodynamic therapy (PDT) in cancer treatment, emphasizing its precise targeting and protection of healthy tissue. The key role of singlet oxygen in initiating apoptosis and other cell death pathways is highlighted, along with the complex interactions of cellular components. The review concludes by emphasizing the opportunities and potential for optimizing PDT.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Biochemistry & Molecular Biology
Wojciech Domka, Dorota Bartusik-Aebisher, Maria Przygoda, Klaudia Dynarowicz, Jerzy Tomik, David Aebisher
Summary: Photodynamic therapy (PDT) affects cancer treatment by activating hormonal response. PDT-treated tumors release stress signals that lead to adrenal activity and the release of glucocorticoids (GCs). These released hormones play important roles in anticancer therapy, including regulating the activity of inflammatory and immune cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Applied
Marek Biesiadecki, Sabina Galiniak, Marta Rachel, Agnieszka Bozek, David Aebisher
Summary: Asthma, the most common chronic inflammatory disease of the airways, is influenced by both genetic and environmental factors. Oxidative stress has been found to play a role in the progression of the disease.
BIOINTERFACE RESEARCH IN APPLIED CHEMISTRY
(2023)
