Article
Chemistry, Multidisciplinary
Pokhraj Ghosh, Molly Stauffer, Valiallah Hosseininasab, Subrata Kundu, Jeffery A. Bertke, Thomas R. Cundari, Timothy H. Warren
Summary: Copper nitrite reductases convert nitrite ions to nitric oxide and nitrous oxide at high levels of nitrogen oxide flux. The assembly of nitric oxide at a single copper site to form copper cis-hyponitrites has been demonstrated in the presence of an external reductant. Furthermore, the removal of a fraction of the structure in the copper cis-hyponitrite complex can be achieved by adding specific reagents, resulting in the formation of a spectroscopically similar anion. These studies provide insights into the reductive coupling of nitrogen oxides at a single copper center and the utilization of the strong oxidizing power of nitrite.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Environmental Sciences
Veeraswamy Davamani, Ramesh Poornima, Subramanian Arulmani, Ettiyagounder Parameswari, Joseph Ezra John, Mohan Deepasri
Summary: The impact of nitrous oxide emissions from fertilized agro-ecosystems is a growing concern, but controlling fertilizer requirements and using nitrification inhibitors can effectively reduce N2O emissions. In irrigated tomato cultivation, the use of potassium thiosulfate and neem-coated urea resulted in lower N2O emissions and increased nitrogen retention.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Lukas Alig, Kim A. Eisenlohr, Yaroslava Zelenkova, Sven Rosendahl, Regine Herbst-Irmer, Serhiy Demeshko, Max C. Holthausen, Sven Schneider
Summary: In this study, a Re-IV pincer platform is reported to mediate N-2 splitting with unprecedented yield through chemical reduction or electrolysis. The resulting Re-V nitrides from N-2 undergo facile nitrogen atom transfer to nitric oxide, giving nitrous oxide nearly quantitatively. Experimental and computational results suggest that outer-sphere ReN/NO radical coupling is facilitated by the activation of the nitride via initial coordination of NO.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Soil Science
Zhen Wu, Yubing Dong, Xi Zhang, Xintong Xu, Zhengqin Xiong
Summary: Biochar application to soil is a promising tool for sequestering carbon, ensuring food security, and mitigating greenhouse gases and emissions of nitrous oxide and nitric oxide. However, limited research has been conducted on the long-term and practical effects of repeatedly amending biochar to soil. A three-year field experiment showed that biochar application significantly decreased methane, nitrous oxide, and nitric oxide emissions without hindering crop yield or mitigation of other greenhouse gases and nitrogen oxides.
Article
Agricultural Engineering
K. F. Bronson, D. J. Hunsaker, D. M. El-Shikha, S. M. Rockholt, C. F. Williams, D. Rasutis, K. Soratana, R. T. Venterea
Summary: N2O emissions from N fertilizer applied to row crops, especially in the case of guayule, can have a significant impact on the greenhouse gas loading to the atmosphere. Understanding N uptake levels in guayule can help improve N fertilizer recommendations for this crop.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Review
Chemistry, Inorganic & Nuclear
Wun-Yan Wu, Ming-Li Tsai, Yi-An Lai, Chieh-Hsin Hsieh, Wen-Feng Liaw
Summary: This study investigates the synthesis cycles and mechanism of NO reduction to N2O triggered by the electronically localized dinuclear dinitrosyl iron complex. The research uncovers the reversible redox transformation and characterizes the formation of the complex, offering insights into the electron transfer mechanisms and pathways involved in the reduction process.
INORGANIC CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Emilio Bueno, Daniel Mania, Socorro Mesa, Eulogio J. Bedmar, Asa Frostegard, Lars R. Bakken, Maria J. Delgado
Summary: The paper investigates the nitrogen-fixing ability of Bradyrhizobium diazoefficiens, a symbiotic bacterium found in soybeans. It explores the regulatory mechanisms and factors affecting nitrogen fixation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Environmental
Rui Yang, Lin-jiang Yuan, Ru Wang, Zhi-xian He, Xi Chen
Summary: This study focuses on the metabolism of N2O in biological wastewater treatment, finding that the main metabolic mechanism is heterotrophic denitrification, influenced by the amount of organic matter and pH value. Under aerobic conditions, N2O emissions mainly come from nitrifiers.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Organic
Shilei Yang, Yi Wang, Wenyao Xu, Xiao Tian, Ming Bao, Xiaoqiang Yu
Summary: An efficient visible-light-driven iron-catalyzed decarboxylative C-N coupling reaction of alkyl carboxylic acids with NaNO2 has been developed. This reaction proceeds under photosensitizer-free conditions and shows good to excellent yields, broad functional group tolerance, and easy operation procedure. Preliminary mechanistic investigations suggest that visible-light-driven iron catalysis not only achieves oxidative decarboxylation of alkyl carboxylic acids to alkyl radicals but also promotes the reduction of NO2 (-) to NO, leading to the C-N radical coupling reaction.
Article
Environmental Sciences
Ruiyu Bi, Xintong Xu, Liping Zhan, Anfeng Chen, Qianqian Zhang, Zhengqin Xiong
Summary: The community structure and abundance of soil ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) were affected by the substitution of chemical fertilizers with organic manure. This substitution significantly reduced the potential of ammonia oxidation and resulted in decreased N2O and NO emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Ecology
Sian Kou-Giesbrecht, Jennifer L. Funk, Steven S. Perakis, Amelia A. Wolf, Duncan N. L. Menge
Summary: The study showed that nitrogen-fixing trees initially mitigated climate change more effectively than non-fixing trees, but under higher nitrogen supply, nitrogen-fixing trees ultimately mitigated climate change less effectively than non-fixing trees.
Article
Environmental Sciences
Alexander H. Krichels, Peter M. Homyak, Emma L. Aronson, James O. Sickman, Jon Botthoff, Hannah Shulman, Stephanie Piper, Holly M. Andrews, G. Darrel Jenerette
Summary: Soil drying and wetting cycles can lead to pulses of nitric oxide (NO) and nitrous oxide (N2O) emissions, which have significant effects on air quality and climate. The study found that nitrate can be rapidly reduced to produce large N2O emission pulses, while multiple processes contribute to long-lasting NO emissions.
Article
Environmental Sciences
Rui Yang, Lin-jiang Yuan, Ru Wang, Zhi-xian He, Lin Lei, Yan-chen Ma
Summary: This study investigates the production process of nitrous oxide (N2O) in the aerobic zone of nitrogen bio-removal process by measuring the activities of two key denitrifying enzymes. The results demonstrate that most of the N2O released and produced come from autotrophic denitrification, while heterotrophic denitrification acts as an N2O consumer. The study suggests that reducing autotrophic denitrification is the best way to reduce N2O production in the aerobic phase.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Microbiology
Luca Freddi, Jorge A. de la Garza-garcia, Sascha Al Dahouk, Alessandra Occhialini, Stephan Koehler
Summary: This study reveals that atypical Brucella species can grow under anoxic conditions strictly dependent on nitrate, while classical species exhibit different behavior. Atypical Brucella species have a more efficient denitrification pathway and rapid consumption of nitrite, which may be related to their ability to colonize different hosts and rapid growth.
MICROBIOLOGY SPECTRUM
(2023)
Article
Biochemistry & Molecular Biology
Pedro J. Pacheco, Juan J. Cabrera, Andrea Jimenez-Leiva, Eulogio J. Bedmar, Socorro Mesa, German Tortosa, Maria J. Delgado
Summary: This study provides a comprehensive investigation of the role of copper (Cu) in denitrification of Bradyrhizobium diazoefficiens. It reveals that Cu influences the expression and protein levels of denitrification-related genes, and also demonstrates a post-transcriptional regulation. The findings of this study are important for reducing N2O emissions from agricultural soils.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Nuclear Science & Technology
Yasunobu Arikawa, Yuki Iwasa, Kohei Yamanoi, Keisuke Iwano, Shinsuke Fujioka, Akifumi Iwamoto, Mitsuo Nakai, Yuji Hatano, Masanori Hara, Satoshi Akamaru, Takayoshi Norimatsu, Ryosuke Kodama
FUSION SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Inorganic & Nuclear
Shinnosuke Horiuchi, Seiya Tanaka, Sangjoon Moon, Eri Sakuda, Akitaka Ito, Yasuhiro Arikawa, Keisuke Umakoshi
Summary: The synthesis and photophysical properties of the heteropolynuclear Pt-Ag complex with cyclometalated rollover bipyridine ligands and bridging pyrazolato ligands were reported. The Pt2Ag2 complex exists as a mixture of U- and Z-shaped isomers, with the ability to form Pt. Ag dative bonds and significantly change emission energy. The additional Ag(I) ion affects the photophysical properties of these complexes as revealed by DFT and TD-DFT calculations.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Shinnosuke Horiuchi, Sangjoon Moon, Akitaka Ito, Jacopo Tessarolo, Eri Sakuda, Yasuhiro Arikawa, Guido H. Clever, Keisuke Umakoshi
Summary: Multinuclear Ag clusters sandwiched by Pt complex units exhibit fluxional behavior and strong photoluminescence properties, with chiral enantiomers showing unprecedented circular dichroism and circularly polarized luminescence properties. Theoretical calculations help understand the structural features and photophysical properties of these complex molecules.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Yasuhiro Arikawa, Motoki Yamada, Nobuko Takemoto, Shinnosuke Horiuchi, Eri Sakuda, Keisuke Umakoshi
Summary: The study revealed the kinetics of the insertion reaction between complex 2 and DMAP, including activation enthalpy, activation entropy, and Gibbs activation energy. The experimental results suggest the inclusion of both complex 2 and DMAP in the transition state.
Article
Chemistry, Multidisciplinary
Shinnosuke Horiuchi, Hirotaka Hiroiwa, Eri Sakuda, Yasuhiro Arikawa, Keisuke Umakoshi
Summary: This study reports the formation and photophysical properties of two types of sandwich complexes supported by asymmetric Pt complex units with different acetylide groups. The asymmetric Pt complex unit was obtained through the acetylide metathesis reaction between two types of symmetric Pt complexes. The incorporation of Cu ions effectively suppressed the reversible acetylide exchange reaction, resulting in the formation of unique chiral Pt4Cu3 and achiral Pt2Cu4Br4 sandwich complexes. The sandwich complexes exhibited moderate photoluminescence in the solid state, and their photophysical properties were dependent on the sandwich structures. These results indicate that remarkable assembled structures can be achieved by asymmetric Pt complex units through the concerted effect of labile coordination bonds and weak noncovalent interactions.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Shinnosuke Horiuchi, Yiming Yang, Misa Ueda, Eri Sakuda, Yasuhiro Arikawa, Keisuke Umakoshi
Summary: In this study, a rational synthesis of an unsymmetric Pt complex with two different pyrazole ligands was successfully carried out. The unsymmetric Pt complex was used to selectively form a Z-shaped Pt2Ag2 complex, whose structures were confirmed by X-ray crystallographic and NMR analysis. It was found that the steric effect of the pyrazole ligands determined the orientation of the Pt complex units, but had little influence on the photophysical properties of the complexes. TD-DFT calculations supported the small electronic contributions of the pyrazole moieties in the Pt and Pt2Ag2 complexes. This synthetic route offers a new strategy for obtaining new types of precious metal sandwich complexes.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Shinnosuke Horiuchi, Takumi Yamaguchi, Jacopo Tessarolo, Hirotaka Tanaka, Eri Sakuda, Yasuhiro Arikawa, Eric Meggers, Guido H. Clever, Keisuke Umakoshi
Summary: In this study, we achieved symmetry-breaking self-assembly of a defined C-1-symmetric supramolecular structure by the synergistic effects of weak binding forces. The flexible capsule framework undergoes a large structural change upon guest binding, forming a distorted resorcin[4]arene hexameric capsule with an asymmetric cavity. The location of the chiral guest in the anisotropic environment leads to modulation of its Electric Dipole (ED) and Magnetic Dipole (MD) transition moments, resulting in increased emission quantum yield and circularly polarized luminescence.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yasuhiro Arikawa, Motoki Yamada, Nobuko Takemoto, Takuya Nagaoka, Yusuke Tsujita, Taiji Nakamura, Yusuke Tsuruta, Shinnosuke Horiuchi, Eri Sakuda, Kazunari Yoshizawa, Keisuke Umakoshi
Summary: Sulfite reduction is a crucial process in the global sulfur cycle, and it can be achieved using transition-metal complexes. In our study, we successfully simulated and achieved the stepwise reduction of sulfite from sulfite to sulfur monoxide, then to disulfide, and finally to hydrogen sulfide using a dinuclear ruthenium complex.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Koyo Takaki, Eri Sakuda, Akitaka Ito, Shinnosuke Horiuchi, Yasuhiro Arikawa, Keisuke Umakoshi
Summary: Novel bis(dipyrrinato)zinc(ii) derivatives with different substituents were designed and synthesized. The fluorescence properties of ZnBph and ZnBdu varied, and their fluorescence intensity was enhanced by binding with fluoride.
Review
Chemistry, Inorganic & Nuclear
Pegah Hajivand, Johannes Carolus Jansen, Emilio Pardo, Donatella Armentano, Teresa F. Mastropietro, Amirreza Azadmehr
Summary: VOCs in human breath can be used as biomarkers for diseases, and MOFs have been extensively studied as gas sensors for VOCs. This review provides a comprehensive summary of the latest MOF-derived composites used as VOCs biomarkers' sensors, and discusses the structural and functional characteristics of MOFs, sensing properties, and the potential of bio-MOFs in VOCs sensing.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Seoyoon Song, Deborah Lee, Lucia C. Dalle Ore, Sungjun Kwak, Lifeng Kang, Hyung Kyo Kim, Noah Malmstadt, Sun Min Kim, Tae-Joon Jeon
Summary: This paper introduces the latest advancements in photoactivable liposomes in drug delivery, highlighting their advantages in precise control over drug release and targeted delivery, as well as the fine control over release kinetics achieved through the manipulation of light-responsive components. Additionally, the paper emphasizes the design considerations of physicochemical properties and light-related constituents.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Shudi Liu, Liangwei Zhang, Heejeong Kim, Jinyu Sun, Juyoung Yoon
Summary: Chromium is a strategic and critical transition metal element with extensive applications. Efficient detection methods, such as fluorescence and colorimetry, have been developed for monitoring its concentrations. However, existing reviews on fluorescent probes for chromium lack comprehensive coverage. This review aims to consolidate information and promote the development of novel fluorescent probes for chromium detection.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Rehab H. Elattar, Samah F. El-Malla, Amira H. Kamal, Fotouh R. Mansour
Summary: Metal complexes have strong analysis potential and can be used to measure analytes lacking essential chemical properties. Their analytical methods based on different mechanisms offer superior performance.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Nem Singh, Miae Won, Yunjie Xu, Changyu Yoon, Jiyoung Yoo, Mingle Li, Heemin Kang, Jong Seung Kim
Summary: Hypoxia is a common occurrence in the tumor microenvironment and poses challenges for cancer treatment. The introduction of covalent organic frameworks (COFs) offers promising prospects for addressing hypoxia-related issues. This article explores the role of COFs in enhancing oxygen delivery, generating reactive oxygen species, optimizing drug delivery, and enabling hypoxia-specific imaging, as well as outlining their applications in various hypoxia-targeting therapeutic modalities.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Priyadarshi Roy Chowdhury, Himani Medhi, Krishna G. Bhattacharyya, Chaudhery Mustansar Hussain
Summary: This review critically analyzes the production of waste-derived layered double hydroxides (LDH) and their utility in electrochemical water splitting for the generation of green hydrogen as sustainable energy. It highlights the importance of waste-derived LDH and discusses the challenges and future directions in this field.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Rajamanickam Sivakumar, Nae Yoon Lee
Summary: This article reviews the progress in imaging reactive oxygen, nitrogen, and sulfur species (RONSS) using luminescent metal complex-based probes. This technology is selective and sensitive, which is of great significance for studying the impact of RONSS in cells and tissues and preventing diseases.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Xinyang Li, Binbin Ding, Pan Zheng, Ping'an Ma, Jun Lin
Summary: The main goal of immunotherapy is to enhance the response and cytotoxicity of tumor-specific T cells by turning cold tumors into hot tumors. However, metabolic reprogramming in the tumor microenvironment can depress the cytotoxicity of T cells and hinder the effectiveness of immunotherapy. This review discusses the role of metabolic reprogramming in the interplay between cancer cells and immune cells in the tumor microenvironment and explores the use of nanomaterials to modulate metabolic pathways and improve immunotherapy outcomes.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Kingsley Poon, Abhishek Gupta, William S. Price, Hala Zreiqat, Gurvinder Singh
Summary: Progress in the development of manganese oxide nanoparticles (MONPs) has provided an alternative for early-stage diagnosis of life-threatening diseases and therapeutic delivery of drugs and genes. The synthesis and characterization of MONPs have enabled the production of multi-functional targeted nanoparticles in various sizes and shapes. The integration of diagnosis and therapeutic capabilities within a single entity, known as nanotheranostics, is promising for real-time monitoring of disease progression and evaluating therapeutic treatment efficacy.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Reza Abedi-Firoozjah, Hadiseh Ebdali, Mahya Soltani, Parastoo Abdolahi-Fard, Mahshid Heydari, Elham Assadpour, Maryam Azizi-Lalabadi, Fuyuan Zhang, Seid Mahdi Jafari
Summary: With the increasing awareness of food safety, there is a growing demand for efficient and affordable sensing methods for the detection of pathogens and toxins in food products. Nanosensors offer promising solutions with their quick and reliable detection capabilities, although challenges remain in their fabrication and practical application.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Demei Sun, Xuesong Feng, Xinyuan Zhu, Youfu Wang, Jinghui Yang
Summary: Metal organic cages (MOCs) with precise and tunable nano structures show great potential in cancer therapy. Their diverse functions and ultrasmall size make them excellent nanoagents for different anticancer strategies, demonstrating outstanding anticancer performances.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Li Li, Yang-Tao Yu, Ning-Ning Zhang, Shu-Hao Li, Jian-Ge Zeng, Yang Hua, Hong Zhang
Summary: This article summarizes recent advances in POM-based hybrid photochromic materials (PCHPMs), including structure types, new photochromic mechanisms, and applications. It can provide valuable guidance for researchers investigating POM-based hybrid photochromic materials.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Chien Ing Yeo, Clariss Hui Peng Goh, Edward R. T. Tiekink, Jactty Chew
Summary: This review article provides an overview of the antibacterial activity of gold complexes, with a focus on gold(I) and gold(III) complexes. It also summarizes the repurposing of Auranofin for antibacterial purposes and the associated mechanism(s) of action.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Sangharaj Diyali, Nilankar Diyali, Bhaskar Biswas
Summary: This study discusses the recent progress in the design and development of catalysts, focusing on the factors influencing overpotential, catalytic rate, and stability, as well as the mechanisms of the hydrogen evolution reaction in acidic and alkaline media. Moreover, it outlines the challenges in future design of robust and active electrocatalysts.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Shaik Gouse Peera, Rahul S. Menon, Sumanta Kumar Das, Akram Alfantazi, K. Karuppasamy, Chao Liu, Akhila Kumar Sahu
Summary: Doped carbon materials, especially F-doped carbon catalysts, have gained significant attention as metal-free catalysts for oxygen reduction reactions and as corrosion-resistant supports for Pt and non-Pt nanoparticles. F-doped carbon materials possess unique properties and greatly improve the activity and durability of the ORR compared to N-doped carbon materials. The high electronegativity of F-doping can efficiently modify the electronic band structure of carbon materials, favoring the ORR. This review systematically discusses the effect of F-doping/F co-doping on the electrocatalytic reduction of O2 in acidic and alkaline conditions, the stability and durability of fuel cell catalysts, and provides guidelines for working with F-doped carbons. Future research directions on F-doped carbons are also proposed to bridge the gap between laboratory-scale assessments and commercial applications.
COORDINATION CHEMISTRY REVIEWS
(2024)
