Article
Nanoscience & Nanotechnology
Navaratnarajah Kuganathan, Alexander Chroneos
Summary: The formation of F- ions from gaseous F-2 in the nanoporous complex oxide 12CaO.7Al(2)O(3) was studied using density functional theory simulations, revealing that the electride form of C12A7 significantly enhances encapsulation due to the presence of electrons in its nanocages, and successive encapsulation of multiple F atoms is energetically favorable in both forms of C12A7. The formation of molecular fluorine (F-2) in the nanocages is unfavorable due to the strong electronegativity of fluorine.
Article
Chemistry, Physical
Frederik Bader, Jean Christophe Tremblay, Beate Paulus
Summary: The presence of a host environment can affect the properties of molecules. In this study, the structure and vibrational properties of trifluoride in cryogenic argon environments were investigated through calculations and experiments. The results show that the properties of trifluoride are dependent on the specific argon environment, indicating a delicate influence of the host atoms on the guest molecule.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Plant Sciences
Xuan Feng, Qingzhi Zhang, David J. Clarke, Hai Deng, David O'Hagan
Summary: 3'-O-ss-Glucosyl-4',5'-didehydro-5'-deoxyadenosine 13 is a natural product of Streptomyces calvus and Streptomyces virens, and can also be generated in vitro by the enzyme NucGT. Experimental results using oxygen-18 and deuterium isotopes confirm that 13 is not a biosynthetic precursor to nucleocidin 1.
JOURNAL OF NATURAL PRODUCTS
(2023)
Article
Engineering, Environmental
Fanyu Meng, Shule Zhang, Yiqing Zeng, Mingjia Zhang, Haocheng Zou, Qin Zhong, Yuntao Li
Summary: This study proposed an efficient method for NO oxidation using F/TiO2 surface fluorine catalyzing the conversion of O-3 and H2O2 into radicals. The results showed NO oxidation rate exceeding 96% under specific molar ratios and demonstrated good stability and resistance to different gas compositions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Benyuan Huang, Yang Liu, Jiawei Duan, Xin Li, Yulong Li, Rui Qin, Xu Wang, Yongbing Zhuang, Xiangyang Liu
Summary: This study develops a fluorination strategy with an atomic fluorination mechanism to modify graphene, which enables the preparation of graphene with a higher fluorination degree and relatively homogeneous fluorine distribution. The resulting fluorinated graphene possesses higher thermal stability, thermal conductivity, and electrical insulation, demonstrating its potential applications in thermal conduction and electrical insulation for microelectronics.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Slawomir J. Grabowski
Summary: The complexes containing diiodotetrafluorobenzene molecules and halide anions were studied using DFT calculations and Quantum Theory of Atoms in Molecules approach. The analysis showed that electrostatic and orbital-orbital interactions are the most important attractive terms for these complexes. The interaction energies were decomposed and it was found that charge transfer plays a significant role in the total interaction energy of complexes with halide anions.
CRYSTAL GROWTH & DESIGN
(2023)
Review
Chemistry, Medicinal
Sandip S. Shinde, Simone Maschauer, Olaf Prante
Summary: This paper provides an updated review on the recent progress in F-18-fluoroglycosylation reactions and the preclinical application of F-18-glycoconjugates, including small molecules, peptides, and high-molecular-weight proteins.
Article
Chemistry, Inorganic & Nuclear
Katelyenn S. McCauley, Justin H. Wilde, Sophia M. Bufalino, Kiel D. Neumann
Summary: An automated radiosynthesis method for [F-18]DPA-714 was developed on a commercially available platform, complying with USP guidelines and facilitating dissemination. This will aid in the research of TSPO-related pathology.
APPLIED RADIATION AND ISOTOPES
(2022)
Article
Spectroscopy
Dmitry Antonov, Emmanuil Silkis, Dmitry Shilo, Boris Zuev
Summary: This study proposes a procedure for directly determining fluorine impurities in carbon materials using atomic emission spectrometry (AES). Two types of radiation sources, direct current arc and high-power low voltage spark, were studied for solid sample introduction. The excitation of F in both sources was investigated, and special measures were taken to counter spectral interferences. Detection limits of 5 mu g/g and 20 mu g/g of F were achieved for dc arc and spark sources, respectively. The entire measurement cycle with each source takes 10 minutes.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Huiying Sun, Zhongling Lang, Yingnan Zhao, Xinyu Zhao, Tianyu Qiu, Qiang Hong, Kaiqiang Wei, Huaqiao Tan, Zhenhui Kang, Yangguang Li
Summary: The Cu-I-bridged tetrakis(4-ethynylphenyl)ethene aggregates (T4EPE-Cu) demonstrated photo-regulated O-1(2) and O-2(.-) generation for selective photocatalytic aerobic oxidation, with Cu-alkynyl confirmed as the main oxygen activation site. The O-1(2) to O-2(.-) product ratios can be controlled in a range from 1.3 to 10.7, and T4EPE-Cu shows ultrahigh photocatalytic performance for Glaser coupling and benzylamine oxidation, with over 99 % conversion and selectivity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Analytical
Oleg V. Komin, Oleg V. Pelipasov
Summary: The effect of O-2 content in plasma gas on plasma characteristics and molecular species intensity was studied. An increase in O-2 content led to a decrease in plasma temperature, Mg(ii)/Mg(i) intensity ratio, and electron density. The intensities of N-2, N-2(+) and NH decreased, while NO and OH intensities increased. The addition of O-2 enhanced atomic line intensities with lower E-sum values but suppressed ionic line intensities.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Physical
Ming Li, Zhengquan Fu, Di Wang, Shuangying Wei, Chenyu Wang, Jian Li
Summary: Fluoride plays a vital role in physiological processes, but excess fluoride ions can cause health issues. Therefore, it is crucial to accurately identify fluoride. Researchers have successfully developed a new method for fluoride identification by functionalizing octa(aminopropyl) polyhedral oligomeric silsesquioxane with aromatic luminogens.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Thermodynamics
Donald R. Burgess, Robert R. Burrell, Valeri Babushok, Jeffrey A. Manion, Michael J. Hegetschweiler, Gregory T. Linteris
Summary: This work characterizes the flammability of refrigerant R-32 through experimental measurements and modeling, showing that burning velocities are controlled by key reactions and can be adjusted in the kinetic model to fit experimental data. The study found systematic uncertainties in measurements and differences between adiabatic and optically-thin limits, with burning velocities transitioning between these limits depending on various conditions. The validated detailed model accurately predicts burning velocities for R-32 mixtures under different conditions, providing a reliable basis for extrapolation.
COMBUSTION AND FLAME
(2022)
Review
Radiology, Nuclear Medicine & Medical Imaging
Weiming Zhou, Xiao Liu, Yan Li, Ting Kang, Zhanwen Huang, Santao Ou
Summary: A bibliometric analysis of the field of [F-18]NaF PET was conducted using the Web of Science database. The study found an increasing number of publications in this field from 2008 to 2022. The United States holds a prominent position in [F-18]NaF PET research, with a focus on arteriosclerosis and bone metastasis.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2023)
Article
Chemistry, Multidisciplinary
Chunjuan Jiang, Le Zhang, Xiaoping Xu, Ming Qi, Jianping Zhang, Simin He, Qiwei Tian, Shaoli Song
Summary: The development of a novel smart agent KN046@F-19-ZIF-8 improves the immune response rate of antibody drugs in tumor treatment and reduces toxic side effects, achieving excellent antitumor efficacy.
Article
Fisheries
Mitsuo Yamamoto, Takayoshi Kato, Shigeru Tabeta, Daisuke Kitazawa, Masatoshi Fujino, Katsumi Shozugawa, Motoyuki Matsuo, Kiyoshi Tanaka, Yutaka Michida
NIPPON SUISAN GAKKAISHI
(2015)
Article
Metallurgy & Metallurgical Engineering
Mitsuo Yamamoto, Dan Liu
ISIJ INTERNATIONAL
(2016)
Article
Metallurgy & Metallurgical Engineering
Dan Liu, Mitsuo Yamamoto
ISIJ INTERNATIONAL
(2016)
Article
Ecology
Mitsuo Yamamoto, Dan Liu, Akihide Kasai, Kei Okubo, Masaru Tanaka
REGIONAL STUDIES IN MARINE SCIENCE
(2016)
Article
Engineering, Chemical
Mitsuo Yamamoto, Katsuya Minami, Dan Liu
KAGAKU KOGAKU RONBUNSHU
(2017)
Article
Environmental Sciences
Mitsuo Yamamoto, Masami Fukushima
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2014)
Article
Chemistry, Multidisciplinary
Jiazhen Wu, Jiang Li, Yutong Gong, Masaaki Kitano, Takeshi Inoshita, Hideo Hosono
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Multidisciplinary Sciences
Tian-Nan Ye, Yangfan Lu, Zewen Xiao, Jiang Li, Takuya Nakao, Hitoshi Abe, Yasuhiro Niwa, Masaaki Kitano, Tomofumi Tada, Hideo Hosono
NATURE COMMUNICATIONS
(2019)
Article
Multidisciplinary Sciences
Tian-Nan Ye, Sang-Won Park, Yangfan Lu, Jiang Li, Masato Sasase, Masaaki Kitano, Tomofumi Tada, Hideo Hosono
Article
Chemistry, Physical
Kayato Ooya, Jiang Li, Keiga Fukui, Soshi Iimura, Takuya Nakao, Kiya Ogasawara, Masato Sasase, Hitoshi Abe, Yasuhiro Niwa, Masaaki Kitano, Hideo Hosono
Summary: Lanthanum oxyhydrides are reported to have high hydride ion conductivity, but loading ruthenium can enhance ammonia synthesis activity. The study finds that the catalytic performance is strongly correlated with the surface H- ion mobility of the ruthenium-loaded lanthanum oxyhydrides.
ADVANCED ENERGY MATERIALS
(2021)
Article
Multidisciplinary Sciences
Zichuang Li, Yangfan Lu, Jiang Li, Miao Xu, Yanpeng Qi, Sang-Won Park, Masaaki Kitano, Hideo Hosono, Jie-Sheng Chen, Tian-Nan Ye
Summary: This study demonstrates the successful synthesis of ammonia through multiple reaction pathways by combining alkali earth imides with transition metal catalysts. The experimental and theoretical results highlight the importance of the combination of metal and support for controlling reaction pathways and achieving highly active and low cost catalysts.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jiang Li, Yihao Jiang, Zhujun Zhang, Masatake Tsuji, Masayoshi Miyazaki, Masaaki Kitano, Hideo Hosono
Summary: A barium oxynitride electride (BaOxNy:e-z) greatly enhances the activity of a Ru catalyst for ammonia synthesis by 40-100 fold compared with BaO and dramatically reduces the reaction barrier, demonstrating the importance of incorporated low-work-function electrons in the BaO lattice for the electronic promotion effect in ammonia synthesis.
ADVANCED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Jiang Li, Jiazhen Wu, Sang-won Park, Masato Sasase, Tian-Nan Ye, Yangfan Lu, Masayoshi Miyazaki, Toshiharu Yokoyama, Tomofumi Tada, Masaaki Kitano, Hideo Hosono
Summary: This research discovers that the topological insulator bismuth selenide can serve as an efficient catalyst for the oxidative carbonylation reaction to synthesize urea derivatives at low temperatures. The topological surface states of bismuth selenide facilitate the activation of dioxygen, leading to higher reaction activity and yield compared to noble metal catalysts.
Article
Chemistry, Multidisciplinary
Jiang Li, Jiazhen Wu, Haiyun Wang, Yangfan Lu, Tiannan Ye, Masato Sasase, Xiaojun Wu, Masaaki Kitano, Takeshi Inoshita, Hideo Hosono
Article
Chemistry, Physical
Jiang Li, Masaaki Kitano, Tian-Nan Ye, Masato Sasase, Toshiharu Yokoyama, Hideo Hosono