Article
Chemistry, Physical
Wenhua Han, Endong Wang, Wen Wu Xu
Summary: This study provides comprehensive insights into the stability of crystallized Au-22(SAdm)(16) nanocluster and reveals the underlying mechanism for the spontaneous transformation to Au-21(SAdm)(15). It also successfully predicts two new isomers of Au-22(SCH3)(16) with lower energies and distinct optical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Olga Nikolaeva, Aleksandr Kapishnikov, Evgeny Gerasimov
Summary: Perovskite-like solid solution La0.5Ca0.5Mn0.5Co0.5O3 was tested for total methane combustion reaction, showing a noticeable decrease in methane conversion and increased catalyst deactivation with temperature rise. In situ XRD and HRTEM methods revealed deactivation was due to segregation of calcite and cobalt oxide particles on the perovskite surface. TGA results also linked decreased catalytic activity to oxygen loss from the perovskite structure.
Article
Chemistry, Physical
Pengye Liu, Wenhua Han, Mengke Zheng, Wenliang Li, Junfeng Ren, Alfredo Tlahuice-Flores, Wen Wu Xu
Summary: The new Au-15(SR)(13) nanocluster, featuring an Au-7(SR)(7) ring as a protection ligand, exhibits lower energy levels, a larger HOMO-LUMO gap, and high chemical stability. The proposed structure needs experimental confirmation despite discrepancies between calculated and experimental results.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Biochemistry & Molecular Biology
Kelly E. Miller, Clotilde Cadart, Rebecca Heald
Summary: Genome size and cell size in frogs are strongly correlated, and this correlation affects developmental rate. However, it is unclear how the relationship between cell size and ploidy is established during embryonic development. By studying different polyploid frogs, researchers discovered that cell size is primarily determined by egg size, while nuclear size is correlated with genome size. At the subcellular level, nuclear size is more strongly correlated with genome size, while mitotic spindle size scales with cell size. These findings demonstrate the relationship between cell size and ploidy in frogs and reveal different size scaling mechanisms during embryogenesis, suggesting that Xenopus development is consistent across a wide range of genome and egg sizes.
Article
Chemistry, Physical
Lixin Yang, Qiuyi He, Wenhua Han, Pengye Liu, Wen Wu Xu
Summary: The application of grand unified model and ring model in understanding the isomeric structures of six Au-28(SR)(20) nanoclusters reveals that the structural isomerism can be understood by different types of ring structures packing, fusing, or interlocking together.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Yu Tang, Xing-Yu Wang, Jin-Can Ren, Bo-Wen Chen, Zhi-Yong Huang, Wei Wang, Ya-Lan Huang, Bing-Hao Zhang, Si Lan, Zhang-Long He, Qi Liu, Hao He
Summary: Lithium-ion batteries (LIBs) with extreme fast charging (XFC) capability are effective in alleviating range anxiety for electric vehicle (EV) buyers. However, the capacity decay mechanism of cathode materials under XFC has not been fully investigated. This study investigates the electrochemical performances and structural evolution of three typical NCM cathode materials with different nickel fractions under XFC conditions. It is found that the capacity decay is faster, especially for Ni-rich NCMs, due to the larger obstruction of lithium intercalation.
Article
Chemistry, Physical
Yan Liu, Congbiao Chen, Bo Hou, Litao Jia, Jungang Wang, Zhongyi Ma, Qiang Wang, Debao Li
Summary: This study reveals the transformation mechanism from fcc-Co to hcp-Co through the investigation of the effects of CO and C in different environments. The results indicate that the transformation from fcc-Co to hcp-Co can only be achieved in the presence of C without CO. CO directly participates in the transformation during the H2-CO-H2'' processing, and the concentration of CO and carbonization temperature jointly affect this process.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
C. Emilio Cardenas, A. Tlahuice-Flores
Summary: This study focuses on the structures of Au-11(SR)(9) and Au-13(SR)(11) thiolated gold clusters, highlighting the importance of the Au-3 unit in small clusters and the impact of different ligand types on cluster stability and properties. The results shed light on ligand effects on electronic, optical, and chiroptical properties, providing insights into the energetic preferences in these small-sized clusters. Additionally, discussions on IR/Raman, UV-vis, and CD spectra of the predicted new structures were carried out.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Hong Ju, Cheng Wang, Zhao-Yuan Meng, Jiang You, Kai Guan, Min Zha, Hui-Yuan Wang
Summary: Solute segregation at the phase boundary (PB) is critical for stabilizing nano-precipitates in Mg alloys. The impact of solute elements (Ag, Sn, Bi, and In) on interfacial properties of α-Mg/Al2Ca was investigated using first-principles calculations. Both chemical and mechanical contributions of solute segregation were found to affect PB stability, with the former playing a dominant role. Ag segregation was shown to improve the thermal stability of the Al2Ca phase. This work provides a new perspective for developing Mg alloys with tailored interfacial properties for high-temperature applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Qiang Li, Wenwen Cong, Changyou Xu, Shuaiguo Zhang, Fang Wang, Dezhi Han, Guangjian Wang, Liancheng Bing
Summary: The study revealed that zeolites with lower framework density and identical CBUs and SBUs can successfully synthesize ZSM-5 in a template-free manner, while zeolites with identical CBUs and SBUs can accelerate the crystallization of ZSM-5.
Article
Chemistry, Physical
Jia Dong, Pu Yang, Chen Zhang, Duanyun Cao, Ying Jiang, Jing Guo
Summary: The solvation of amphiphile molecules plays a crucial role in various physical, chemical, and biological processes. This study investigated the interfacial effects on molecular solvation using qPlus-based noncontact atomic force microscopy and discovered ordered water-methanol clusters formed on Cu(110) and Cu(111) surfaces. It was found that water and methanol were incompletely mixed on the Cu(110) surface, while methanol could be solvated within the water hydrogen-bonding network on the Cu(111) surface, resulting in molecular-scale complete mixing. Density functional theory calculations revealed that the complete mixing was induced by the weaker interaction between the complex and the Cu(111) substrate. This work provides insights into the fine-tuning of molecular solvation behavior through proper interfacial engineering.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Saniya Gratious, Akhil S. Nair, Sayani Mukherjee, Neha Kachappilly, Biswarup Pathak, Sukhendu Mandal
Summary: Understanding the structural growth patterns and property evolution in nanoclusters is crucial for designing clusters with specific properties. The transformation of Au-44(SPh-Bu-t)(28) to Au-36(SPh-Bu-t)(24) through deassembly of an Au-8(SPh-Bu-t)(4)d fragment was found to follow zero-order kinetics with low activation energy, with surface restructuring identified as the rate-determining step. Proposed mechanistic pathway offers insights into nanocluster structure evolution.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Meng-Xia Ma, Xue-Li Ma, Guang-Ming Liang, Xue-Tao Shen, Qing-Ling Ni, Liu-Cheng Gui, Xiu-Jian Wang, Si-Yu Huang, Shi-Ming Li
Summary: This study introduces a novel silver nanocluster Ag-307, with its structure and properties detailed analyzed, demonstrating its special stability and unique electronic characteristics.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Mining & Mineral Processing
Huihui Zeng, Baolin Xing, Yijun Cao, Bing Xu, Lei Hou, Hui Guo, Song Cheng, Guangxu Huang, Chuanxiang Zhang, Qi Sun
Summary: The materialization of coal is an effective and clean pathway for its utilization, and the microstructures of coal-based carbon materials play a crucial role in their functional applications. This study systematically investigates the microstructural evolution of anthracite in the temperature range of 1000-2800 degrees C, providing guidance for the regulation of microstructure in coal-based carbon materials.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xiao-He Liu, Yi He, Zhi Li, Ai-Hua Cheng, Zhiqi Song, Zhi-Xuan Yu, Shouning Chai, Cheng Cheng, Chi He
Summary: Recently, metal nanoclusters have been used as photosensitizers in metal-cluster-sensitized semiconductor systems, but the suitable combination of nanoclusters and semiconductors is still not clear. In this study, the interaction between Au nanoclusters and TiO2 was examined, and it was found that tuning the number of core atoms in the nanoclusters resulted in a strong interface interaction, promoting electron injection from the nanoclusters to TiO2 and reducing interfacial charge recombination. As a result, Au18(SG)14/TiO2 showed higher hydrogen generation rate than Au22(SG)18/TiO2 under light irradiation. This work provides new insights into the rational combination of metal nanoclusters with semiconductors and highlights the importance of interfacial interaction behavior in light energy conversion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Organic
Saurodeep Mandal, Koushik Pramanik, Sujoy Das, Md Majharul Islam, Sukhendu Mandal, Prithidipa Sahoo
Summary: In this study, a Dansyl functionalized fluorescent probe capable of sensing trace amounts of water contaminant via color change was designed and synthesized. Experimental and theoretical evaluations proved the potential of the probe and shed light on its sensing mechanism. Additionally, the probe can be used as a cell imaging dye.
LETTERS IN ORGANIC CHEMISTRY
(2022)
Article
Microbiology
Md Majharul Islam, Rajarshi Bhattacharya, Biraj Sarkar, Pulak Kumar Maiti, Shouvik Mahanty, Punarbasu Chaudhuri, Swadesh Ranjan Biswas, Sukhendu Mandal
Summary: This study investigated the dynamics of rhizospheric microbiome in rice and peanut, and found that the bacterial community in the rhizosphere is affected by both the adjacent environmental factors and the type of hosts.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Microbiology
Debabrata Misra, Narendra Nath Ghosh, Manab Mandal, Vivekananda Mandal, Nabajyoti Baildya, Sukhendu Mandal
Summary: This study reports the purification and characterization of tridecanoic acid methyl ester (TAME) from Monochoria hastata as an antibacterial active molecule, as well as its detailed mode of action against gastrointestinal pathogens.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2022)
Review
Microbiology
Santosh Kumar Jana, Md Majharul Islam, Sukhendu Mandal
Summary: Endophytic microbiota, including rice endophytes, play a crucial role in promoting plant growth, stress tolerance, and disease control. They enhance host health through the production of phytohormones, solubilized minerals, and by mitigating adverse environmental conditions. Furthermore, endophytes protect plants from phytopathogens and have shown potential applications in environmental waste management and green nanoparticle synthesis.
CURRENT MICROBIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Aayatti Mallick Gupta, SasthiCharan Mandal, Sukhendu Mandal, Jaydeb Chakrabarti
Summary: Mutations in SARS-CoV-2, particularly the P323L mutation in RdRp, can cause changes in the epitope region and its interaction with the paratope, leading to decreased accessibility and destabilization of the interface. These mutations may help the virus evade host immunity.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Chemistry, Multidisciplinary
Jiko Raut, Md Majharul Islam, Shrabani Saha, Santi M. Mandal, Sukhendu Mandal, Prithidipa Sahoo
Summary: In this study, blue luminous nitrogen-doped carbon quantum dots were developed for the differential detection of doxycycline. The suggested sensor exhibited high sensitivity and selectivity, making it ideal for measuring doxycycline in environmental applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Biotechnology & Applied Microbiology
Jhuma Biswas, Santosh Kumar Jana, Sukhendu Mandal
Summary: This article introduces the characteristics of halophiles and their potential applications in industrial bioactive molecules, as well as the importance of genetic engineering in exploring these molecules.
BIOTECHNOLOGY AND GENETIC ENGINEERING REVIEWS
(2022)
Review
Biotechnology & Applied Microbiology
Dipanwita Patra, Sukhendu Mandal
Summary: Previous research on biological nitrogen fixation has mainly focused on the symbiotic relationship between legumes and rhizobia. However, newly identified non-rhizobial bacteria can also be used as an alternative nitrogen source for both legumes and non-legume plants. Non-legume plants, particularly cereals, lack the canonical nitrogen fixation system through root-nodule organogenesis. Non-rhizobial bacteria can colonize in the rhizosphere or exist in an endophytic/associative manner. They are known for promoting plant growth, alleviating various stresses, acquiring minerals, and producing phytohormones. In non-legume plants, bacterial symbiosis, particularly with Gram-positive Frankia, plays a major role in the overall availability of usable nitrogen in the soil. This review discusses the diversity and association of non-rhizobial species and their impact on the growth and productivity of major economically important cereal plants. The potential application of non-rhizobia for improving soil fertility and enhancing plant growth for sustainable agriculture is also discussed.
BIOTECHNOLOGY AND GENETIC ENGINEERING REVIEWS
(2022)
Article
Plant Sciences
Santosh Kumar Jana, Md Majharul Islam, Samrat Hore, Sukhendu Mandal
Summary: Research on seed microbiota is important for plant growth and productivity. This study identified and characterized unique culturable seed endophytes in rice and demonstrated their roles in promoting plant growth and biocontrol.
PLANT GROWTH REGULATION
(2023)
Article
Chemistry, Multidisciplinary
Riya Bag, Yeasin Sikdar, Sutapa Sahu, Md Majharul Islam, Sukhendu Mandal, Sanchita Goswami
Summary: In this study, we synthesized 3-(1H-benzoimidazol-2-yl)-2-hydroxy-5-methyl-benzaldehyde (HBIA) from 2-(2-hydroxyphenyl)benzimidazole (HBI) and three Schiff bases from substituted amino benzoic acids. We investigated the photophysical properties of these compounds and found that their emission in the solid state is different due to the hydrogen bonding in their molecular structures. We also demonstrated that H(2)BIo, H(3)BIdm, and H(2)BIp can selectively detect Cu2+ in semi-aqueous medium.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Jiko Raut, Dipanwita Patra, Shanti M. Mandal, Sukhendu Mandal, Prithidipa Sahoo
Summary: A simple and environmentally friendly nitrogen, sulphur dual doped carbon quantum dots (N, S-CQDs) were developed through a microwave-assisted method using mercaptosuccinic acid and diethylenetriamine. The N, S-CQDs selectively interacted with rifampicin over other antibiotics, causing loss of fluorescence due to the interaction between functional groups. The tight and irreversible interaction between N, S-CQDs and rifampicin may mitigate the environmental exposure, antimicrobial resistance, and toxicity of rifampicin in the future.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Microbiology
Rajarshi Bhattacharya, Bidhan Chandra Mukhopadhyay, Mirambika Mishra, Ananta Prasad Arukha, Sukhendu Mandal, Swadesh Ranjan Biswas
Summary: Lactobacillus fermentum is a potential probiotic bacterium that enhances immunological response, produces antimicrobials, acts as a food preservative, and lowers blood cholesterol level. The draft genome of Lactobacillus fermentum S2 consists of 1.97 Mb genome size, 52.27% G + C content, 3 rRNA genes, 51 tRNA genes, and 2,004 protein-coding sequences.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2023)
Article
Environmental Sciences
Jhuma Biswas, Himadri Sekhar Sarkar, Amal Kanti Paul, Sukhendu Mandal
Summary: In this study, we report the simultaneous removal and bioconversion of malachite green and hexavalent chromium by a halophilic biofilm-forming bacterium Halomonas xianhensis SUR308. The strain is capable of efficiently detoxifying and degrading these contaminants, even in alkaline and high-salinity environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Jiko Raut, Md Majharul Islam, Rinchen D. Sherpa, Biraj Sarkar, Shanti M. Mandal, Subhra P. Hui, Sukhendu Mandal, Prithidipa Sahoo
Summary: Dichloroacetic acid (DCA), an organohalide found in environmental samples and biological systems, has therapeutic potential as a pyruvate dehydrogenase kinase (PDK) inhibitor. Researchers have developed cobalt conjugated carbon quantum dots (N-CQDs/Co) that selectively detect DCA using a fluorescence turn-on mechanism.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Riya Bag, Yeasin Sikdar, Sutapa Sahu, Majharul Islam, Sukhendu Mandal, Sanchita Goswami
Summary: In this study, two unsymmetrical and dipodal Schiff-Mannich combo ligands were synthesized and used for the selective detection of Zn2+ in semi-aqueous media. The probes showed a turn-on response to Zn2+ due to chelation-induced enhanced fluorescence and photo-induced electron transfer. Experimental studies showed that H2BBH and H3BSH could detect Zn2+ in solutions with low limit of detections. The structures of probe-Zn2+ ensembles were proposed by various methods. Moreover, the probes were successfully employed in the detection of Zn2+ in different samples.
NEW JOURNAL OF CHEMISTRY
(2022)
