Article
Chemistry, Multidisciplinary
Yan Wang, Yuanxing Fang, Yankun Wang, Haisu Wu, Masakazu Anpo, Jimmy C. Yu, Xinchen Wang
Summary: This study describes the synthesis of nitrogen-doped carbon (NDC) photocatalyst directly from ammonia and methane gases. The photocatalyst can selectively synthesize imines by photo-oxidation of amines, producing H2O2 simultaneously in the photoreduction reaction. These findings shed light on the chemical evolution of the Earth.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Ceramics
T. V. Perevalov, V. A. Volodin, G. N. Kamaev, A. A. Gismatulin, S. G. Cherkova, I. P. Prosvirin, K. N. Astankova, V. A. Gritsenko
Summary: The electronic structure and optical properties of SiOxNy:H films enriched with silicon obtained by plasma-enhanced chemical deposition are studied. It is found that the film composition can be effectively varied by changing the gas flow ratio and plasma generator power. Additionally, the p+-Si/SiOxNy:H/Ni structures exhibit properties of memristor bipolar type.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Environmental Sciences
Le Thi Thu Hien, Anne Gobin, Duong Thi Lim, Dang Tran Quan, Nguyen Thi Hue, Nguyen Ngoc Thang, Nguyen Thanh Binh, Vu Thi Kim Dung, Pham Ha Linh
Summary: Soil salinity has a significant impact on agricultural production, especially in low-lying coastal areas where saltwater intrusion is a growing concern. Monitoring salinity is challenging due to the influence of soil moisture on the soil's spectral signature. The study found that Fourier-transform infrared spectroscopy can be used to map salt-affected soils, particularly in inaccessible areas. Advancements in thermal satellite sensors may provide possibilities for monitoring soil salinity in the future.
Article
Chemistry, Multidisciplinary
Benedikt Fischer, Andreas Lambertz, Maurice Nuys, Wolfhard Beyer, Weiyuan Duan, Karsten Bittkau, Kaining Ding, Uwe Rau
Summary: This study demonstrates that Raman spectroscopy is suitable for directly determining the microstructure of thin hydrogenated amorphous silicon layers on silicon heterojunction solar cells. A detailed comparison of FTIR and Raman spectroscopy shows significant differences in the microstructure parameter with decreasing a-Si:H film thickness.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Seth T. Kazmer, Gunter Hartel, Harley Robinson, Renee S. Richards, Kexin Yan, Sebastiaan J. van Hal, Raymond Chan, Andrew Hind, David Bradley, Fabian Zieschang, Daniel J. Rawle, Thuy T. Le, David W. Reid, Andreas Suhrbier, Michelle M. Hill
Summary: This study investigates the biochemical changes and potential diagnostic use of Fourier transform infrared (FTIR) spectroscopy in COVID-19 screening. It demonstrates that SARS-CoV-2 infection induces significant changes in culture supernatant and oral lavage samples, including aggregated proteins and RNA. The study also develops a predictive model for COVID-19 using saliva samples and highlights alterations in beta-sheet structures in secreted proteins as a common response to SARS-CoV-2 infection.
Article
Biochemistry & Molecular Biology
Kornelia Lach, Aneta Kowal, Marta Perek-Polnik, Pawel Jakubczyk, Christopher J. Arthur, Wioletta Bal, Monika Drogosiewicz, Bozenna Dembowska-Baginska, Wieslawa Grajkowska, Jozef Cebulski, Radoslaw Chaber
Summary: This study evaluated the potential of FTIR spectroscopy as a diagnostic tool for medulloblastoma (MB). The results showed significant differences in FTIR spectra between MB and normal brain tissue, indicating that FTIR spectroscopy can be used to differentiate them to some extent. Therefore, it may be a valuable method to expedite and enhance histological diagnosis.
Article
Instruments & Instrumentation
No'ad Shanas, William Querido, Jack Oswald, Karl Jepsen, Erin Carter, Cathleen Raggio, Nancy Pleshko
Summary: Applications of vibrational spectroscopy to assess bone disease and therapeutic interventions are continually advancing. Different bone compositions were observed among the control wildtype (WT) and OIM groups using NIR spectral analysis, with NIR parameters showing greater sensitivity to bone composition differences.
APPLIED SPECTROSCOPY
(2022)
Article
Materials Science, Coatings & Films
Ippei Tanaka, Hiroshi Okubo, Yasunori Harada
Summary: The study investigates the synthesis of diamonds on three-dimensional metal surfaces using MVP deposition, focusing on how pressure and bias voltage influence the diamond structure. The results show that MVP makes it possible to deposit diamond on 3D shape substrates, with diamond particles created at specific bias voltages and methane concentrations.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Food Science & Technology
Min Huang, Yihan Mao, Yuzhu Mao, Hongshun Yang
Summary: The effects of adding xylitol and maltitol on the gelation properties of kappa-carrageenan in real food systems were studied. The results showed that both xylitol and maltitol improved the gel network of kappa-carrageenan, with maltitol having a stronger effect.
Article
Chemistry, Applied
Sara Zielinska, Izabela Staniszewska, Justyna Cybulska, Artur Zdunek, Monika Szymanska-Chargot, Danuta Zielinska, Zi-Liang Liu, Zhongli Pan, Hong-Wei Xiao, Magdalena Zielinska
Summary: The effect of different processing times of cold plasma treatment on the cell wall polysaccharides and phytochemical properties of okra pods was investigated. The results showed that the treatment time had an impact on the pectin content, lycopene and chlorophyll levels. Short cold plasma treatment was found to be beneficial to the antioxidant potential of okra pods.
FOOD HYDROCOLLOIDS
(2022)
Article
Construction & Building Technology
Priyadarshini Saha Chowdhury, Ramya Sri Mullapudi, M. Amaranatha Reddy
Summary: This study investigated the aging effect of asphalt binders using chemomechanical evaluation and analyzed the aging behavior of asphalt binders through multiple tests. The results showed that aging of asphalt binders resulted in changes in chemical properties, which affected the performance of pavements.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2022)
Article
Paleontology
Phillip E. Jardine, Carina Hoorn, Maxine A. M. Beer, Natasha Barbolini, Amber Woutersen, Giovanni Bogota-Angel, William D. Gosling, Wesley T. Fraser, Barry H. Lomax, Huasheng Huang, Matteo Sciumbata, Huajie He, Guillaume Dupont-Nivet
Summary: Sporopollenin, a highly resistant biopolymer forming the outer wall of pollen and spores, has opened up new avenues for palynological research. While there is strong taxonomic signature in isolated sporopollenin from extant grass pollen, substantial chemical differences were revealed between extant and fossil sporopollenin, tied to diagenetic changes and chemical derivates of sample processing. Directly integrating extant and late Quaternary chemical data is feasible with maintained sample processing routines, but classifying fossil specimens using extant training sets will be challenging due to consistent differences between extant and deeper time sporomorphs. Further research is needed to understand and simulate the effects of diagenetic processes on sporopollenin chemistry.
Article
Soil Science
Laurel Lynch, Andrew Margenot, Francisco Calderon, Jessica Ernakovich
Summary: Accelerating permafrost thaw increases organic matter availability in high-latitude ecosystems. The chemical composition of permafrost-derived organic matter influences microbial metabolic efficiency, which can determine the Arctic's role as a carbon sink or a source of greenhouse gases. This study investigated shifts in soil and dissolved organic matter chemistry during a thaw experiment, and found that permafrost depth and enzyme activities correlated with changes in organic matter chemistry. Understanding these patterns can help improve projections of Arctic carbon storage during global change.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Masrat Bashir, Aijaz A. Dar, Imtiyaz Yousuf
Summary: This work focuses on the synthesis, characterization, and biological profile of Mn(II)- and Zn(II)-based complexes derived from a specific ligand. The structural and electronic properties were studied, and the stability of crystal lattice structures was investigated. The complexes showed avid binding to DNA and exhibited antioxidant and antibacterial activities. Furthermore, the polymeric Zn(II) complex exhibited selective cytotoxicity against a lung cancer cell line.
Article
Materials Science, Ceramics
Tianyi Hua, Ouli Fu, Parvaneh Kheirkhah Barzoki, Yasser Gowayed
Summary: This study presents a method for fabricating metakaolin-based geopolymers that can maintain their structural and mechanical stability up to 600 degrees C. The chemical composition of the geopolymers was analyzed using thermogravimetric analysis and Fourier-transform infrared spectroscopy. The presence of residual free water led to damage when exposed to high temperatures, so the curing temperature was increased to remove water during the curing process. A correlation was found between the formation of Si-O-Al linkage and the position of fingerprint peaks in infrared spectra, providing a means to evaluate the extent of geopolymerization. The flexural and tensile properties of the geopolymers were measured at different temperatures, and it was found that the metakaolin-based geopolymers cured at 120 degrees C remained mechanically stable up to 600 degrees C.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Physics, Applied
Keigo Kameda, Daichi Sato, Yosuke Ito, Hiroaki Natsukawa, Kazuhisa Okano, Natsuhiko Mizutani, Tetsuo Kobayashi
JAPANESE JOURNAL OF APPLIED PHYSICS
(2015)
Article
Optics
Keigo Kamada, Yosuke Ito, Sunao Ichihara, Natsuhiko Mizutani, Tetsuo Kobayashi
Article
Engineering, Electrical & Electronic
Sunao Ichihara, Natsuhiko Mizutani, Yosuke Ito, Tetsuo Kobayashi
IEEE TRANSACTIONS ON MAGNETICS
(2016)
Article
Optics
Yosuke Ito, Daichi Sato, Keigo Kamada, Tetsuo Kobayashi
Article
Engineering, Electrical & Electronic
Yuki Mamishin, Yosuke Ito, Tetsuo Kobayashi
IEEE TRANSACTIONS ON MAGNETICS
(2017)
Article
Biochemical Research Methods
Ingo Hilschenz, Yosuke Ito, Hiroaki Natsukawa, Takenori Oida, Tetsuya Yamamoto, Tetsuo Kobayashi
JOURNAL OF MAGNETIC RESONANCE
(2017)
Article
Optics
Kazumasa Nishi, Yosuke Ito, Tetsuo Kobayashi
Article
Engineering, Electrical & Electronic
Yosuke Ito, Hiroyuki Ohnishi, Keigo Kamada, Tetsuo Kobayashi
IEEE TRANSACTIONS ON MAGNETICS
(2011)
Article
Engineering, Electrical & Electronic
Yosuke Ito, Hiroyuki Ohnishi, Keigo Kamada, Tetsuo Kobayashi
IEEE TRANSACTIONS ON MAGNETICS
(2012)
Article
Engineering, Electrical & Electronic
Yosuke Ito, Daichi Sato, Keigo Kamada, Tetsuo Kobayashi
IEEE TRANSACTIONS ON MAGNETICS
(2014)
Article
Biochemical Research Methods
Takenori Oida, Yosuke Ito, Keigo Kamada, Tetsuo Kobayashi
JOURNAL OF MAGNETIC RESONANCE
(2012)
Article
Biophysics
K. Kamada, Y. Ito, T. Kobayashi
PHYSIOLOGICAL MEASUREMENT
(2012)
Article
Nanoscience & Nanotechnology
Yosuke Ito, Hiroyuki Ohnishi, Keigo Kamada, Tetsuo Kobayashi
Article
Multidisciplinary Sciences
Yosuke Ito, Masahito Ueno, Tetsuo Kobayashi
SCIENTIFIC REPORTS
(2020)
Proceedings Paper
Engineering, Biomedical
Yosuke Ito, Hiroyuki Ohnishi, Keigo Kamada, Tetsuo Kobayashi
2013 35TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
(2013)