Article
Crystallography
Valentina Sesti, Micol D'Antonio, Andrea Lucotti, Paola Moretti, Rossella Castagna, Chiara Bertarelli, Matteo Tommasini
Summary: In this study, we utilized UV-Vis and Raman spectroscopy to establish a correlation between the intensity of certain transitions and the occurrence of aggregation phenomena. Through TDDFT calculations, we provided a rational explanation for the formation of H-aggregates and their impact on the observed changes in the UV-Vis spectra. Both experimental observations and theoretical analysis support a correlation between Raman intensity and the molar absorption coefficient. Our methodology was further developed using Disperse Orange 3 (DO3), a well-known push-pull azobenzene dye with a strong optical absorption in the blue-green region, and a known tendency to form H-aggregates.
Article
Environmental Sciences
Yujie Zhang, Shikang Wu, Peizhe Sun
Summary: Determining the conditional stability constant (Kcond) is crucial for assessing the stability of Fe(III) complexes in surface water and wastewater. This study evaluated existing methods of Kcond determination and proposed a novel UV-Vis spectroscopy method. The results showed that Fe(III)-EDTA had the highest logKcond value (7.08), followed by Fe(III)-NTA (4.67), Fe(III)-OA (4.32), Fe(III)-TTC (4.28), and Fe(III)-Kana (3.07). The method was also applied to Fe(III) complexation with humic acid (HA), yielding a logKcond value of 5.02 M-1. The proposed methodology demonstrated satisfactory measurement capability for a wide range of complexes (103 to 107 M-1). Insights into the impact of Fe(III) complexes in water matrices can be gained using this method.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Elizabeth A. K. Wilson, Prashant Kumar, Douglas G. Montjoy, Nicholas A. Kotov
Summary: Liquid and supercritical CO2 have high solubility limits for hydrocarbons and can be used as green hydrophobic solvents. However, dispersing hydrophilic particles in CO2 is challenging due to their tendency to aggregate, limiting their surface area and catalytic efficiency. This study shows that hydrophilic semiconductor particles can be effectively dispersed in a liquid CO2 mixture with acetonitrile (ACN) by preventing aggregation using surface corrugation. Geometrically complex particles with nanoscale spikes disperse and remain suspended longer in liquid CO2 compared to other particles. The results highlight the need for further research to understand the wetting behavior of hydrophilic particles in high-pressure nonpolar environments.
Article
Spectroscopy
Smita Verma, Velayutham Ravichandiran, Nihar Ranjan
Summary: A selective fluorescence sensor for carbonate ions has been developed in this study, which can rapidly detect low concentrations of carbonate ions. Experimental results demonstrate direct interaction between the sensor and carbonate ions, with potential implications for disease prevention and toxicity assessment.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Qingli Zou, Yue Sun, Zhuojian Liang, Wanwan Wang, Yi-Chun Lu
Summary: Magnesium-sulfur batteries offer higher theoretical volumetric energy density and lower cost compared to lithium-sulfur batteries, but suffer from poor cycle life and low energy efficiency. By increasing polysulfide solubility with high-donor-number solvents like dimethyl sulfoxide (DMSO), the discharge capacity and sulfur overpotential can be improved, leading to higher performance and reversible cycling.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Narayan Sinha, Juan-Ramon Jimenez, Bjorn Pfund, Alessandro Prescimone, Claude Piguet, Oliver S. Wenger
Summary: By combining pi-donating amido with pi-accepting pyridine coordination units in a tridentate chelate ligand, a strong nephelauxetic effect was achieved in a homoleptic Cr-III complex, shifting its luminescence to the NIR-II spectral range. This study focuses on increasing metal-ligand bond covalence to shift the ruby-like E-2 emission of Cr-III to 1067 nm at 77 K, taking a fundamentally different approach from previous ligand design strategies.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
S. D. Nath, A. H. Bhuiyan
Summary: Thermally stable PPMA thin films were synthesized on spotless glass substrates using AC power plasma polymerization. The films exhibited surface clusters/agglomerations and contained carbon and oxygen in varying percentages. Spectroscopic analysis showed the presence of different molecular vibrations, indicating a higher percentage of hydrophobic groups. The films also displayed various optical properties, making them suitable for optoelectronic devices.
Article
Chemistry, Applied
Prodromos Prodromidis, Ioannis Mourtzinos, Costas G. Biliaderis, Thomas Moschakis
Summary: This study extracted anthocyanins from onion outer scales and found that the stability of anthocyanins was improved when cyclodextrins were present. The color intensity also increased after storage and thermal treatment. The natural color extract from onion outer scales could be used as an alternative food colorant.
Article
Chemistry, Applied
Libi Chirug, Eden Eran Nagar, Zoya Okun, Avi Shpigelman
Summary: The study found that flavonoid compounds with a C2-C3 double bond interacted with pectin, while those without this double bond did not bind to pectin. Moreover, a pH of 2.5 significantly reduced binding, while the difference between pH 4.5 and 6.5 was small and structure-dependent.
FOOD HYDROCOLLOIDS
(2021)
Article
Environmental Sciences
J. McGinley, M. G. Healy, P. C. Ryan, P. -E. Mellander, L. Morrison, J. Harmon O'Driscoll, A. Siggins
Summary: This study investigates the adsorption characteristics of five herbicides onto raw and pyrolysed waste materials from an industrial setting. The results show that granulated activated carbon exhibits the highest herbicide removal efficiency and the adsorption process involves both physical and chemical mechanisms. The Freundlich model best describes the adsorption of herbicides onto heterogeneous surfaces.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
Wei Liu, Yongyang Li, Lin Li, Jingfang Shangguan, Yufei Liu, Tianjun Ni, Yaofeng Wang, Jing Kang
Summary: This research explores a simple and sensitive colorimetric method for detecting metformin using synthesized gold nanoparticles. The findings show that the addition of metformin to the solution results in the instability and aggregation of the gold nanoparticles, leading to a change in the absorption peak wavelength. Additionally, the concentration of NaCl also affects the aggregation process of the gold nanoparticles. The method demonstrates a linear relationship for detecting metformin in the concentration range of 150 nM to 500 nM.
Article
Chemistry, Physical
J. Al Boukhari, Z. Bitar, A. A. Azab, R. Awad, M. Rekaby
Summary: In this study, low-cost chloride precursors were used to synthesize pure and codoped NiO nanoparticles through a facile coprecipitation method. The thermal, structural, morphological, optical, and magnetic properties of the samples were found to be strongly dependent on the reaction temperature and codoping. The codoped samples with a doping concentration higher than 4% showed linear M-H curves, indicating their ferromagnetic behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Jinhui Huang, Xue Lin, Yongchuang Zhu, Xuejiao Sun, Jiesheng Chen, Yingde Cui
Summary: In this study, nanometer selenium with a mass content of 2.06% and an average particle size of 49 nm was successfully prepared using the chemical reduction method. The surface phospholipids formed lamellar structures after directional freezing, and the nano-selenium particles were dispersed in the middle of the lamellar. Due to the lamellar structure and amphiphilic properties, the nano-selenium particles were efficiently dispersed and remained stable during storage for 20 days.
GREEN PROCESSING AND SYNTHESIS
(2023)
Article
Chemistry, Physical
Natthapong Monarumit, Thanapong Lhuaamporn, Pornsawat Wathanakul, Chatree Saiyasombat, Wiwat Wongkokua
Summary: Recently, the concept of Fe3+-Ti4+ mixed acceptor states in the energy band gap of sapphire has been proposed as the cause of blue coloration. The blue color in sapphire is faded and turns yellow by beryllium heat treatment. It has been revealed as the color center in Be-treated yellow sapphires. The mechanism underlying these phenomena was explained and discussed in this study.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Narayan Sinha, Polina Yaltseva, Oliver S. Wenger
Summary: The nephelauxetic effect, which refers to the expansion of d-orbitals as a result of metal-ligand bond covalence, has been recognized for its importance in the design of new photoactive complexes using first-row transition metals. This effect can significantly impact the photophysical properties of 3d metal complexes in solution at room temperature. By exploiting the nephelauxetic effect, red luminescence in Cr-III and Mn-IV complexes has been shifted to the near-infrared spectral region, while charge-transfer excited states in Fe-II and Co-III complexes have been stabilized, improving their properties and application potential.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Biochemistry & Molecular Biology
Mahadev Patil, Anurag Noonikara-Poyil, Shrinivas D. Joshi, Shivaputra A. Patil, Siddappa A. Patil, Abby M. Lewis, Alejandro Bugarin
Summary: In this study, two series of new piperazine and triazolo-pyrazine derivatives were synthesized in a single-step reaction and fully characterized. Testing against bacterial and fungal strains revealed strong antimicrobial activity for N-{[(3-chlorophenyl)-4-(dibenzo[b,f][1,4]thiazepin-11-yl)]}piperazine-1-carboxamide (3o). Promising results from molecular docking studies suggest potential for developing more potent antimicrobials.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Organic
Praveen M. Parkali, A. Shyam Kumar, Pohamba K. Johanna, Shilomboleni T. Prodensia, Sruthi Turaga, Vinod Shaiva, Gurubasavaraj Pujar, Shrinivas D. Joshi, Tejraj M. Aminabhavi, Sheshagiri R. Dixit
Summary: Molecular docking and 3D-QSAR studies were conducted on a series of pyrimidine derivatives to develop inhibitors for Enoyl ACP Reductase, a key enzyme in fatty acid biosynthesis and antitubercular drug development. Results from the models and structural features analysis provided insights into predicting better inhibitory potency and the importance of specific amino acid residue interactions. This study contributes to the development of novel Enoyl ACP reductase inhibitors by understanding the specific activity of compounds.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Management
Manu Sharma, Sunil Luthra, Sudhanshu Joshi, Himanshu Joshi
Summary: The COVID-19 pandemic has had a global impact, causing uncertainty and affecting institutions and individuals worldwide. Implementing agile projects is crucial for surviving in the post-pandemic situation. However, emerging economies face limitations in implementing agile projects. This study identifies and evaluates the critical factors that restrict agile project implementation in emerging economies, providing insights for project managers to address these challenges.
OPERATIONS MANAGEMENT RESEARCH
(2022)
Article
Computer Science, Information Systems
Manu Sharma, Sudhanshu Joshi, Sunil Luthra, Anil Kumar
Summary: This research evaluates the influence of Digital Assistant (DA) attributes on the purchasing intention of millennials, finding that perceived interactivity and anthropomorphism may amplify their purchasing intention. The moderating role of gender on the relationship between perceived interactivity and purchasing intention is also significant. This study is significant in predicting millennial purchasing intentions and fostering engagement with them through DA.
INFORMATION SYSTEMS FRONTIERS
(2022)
Article
Green & Sustainable Science & Technology
Manu Sharma, Sunil Luthra, Sudhanshu Joshi, Anil Kumar, Akshat Jain
Summary: The study aims to investigate the impact of green logistics on the adoption of Circular Economy (CE) in the era of Industry 4.0 (I4.0). By implementing green initiatives, the logistics sector shows its strong concern for environmental issues and promotes sustainable logistics and circular practices to address critical issues such as waste generation, resource scarcity, renewable resource use, and climate change. The study examines the relationships between green logistics practices, I4.0 technologies, and CE adoption while also considering the moderating effects of institutional pressure and supply chain flexibility. The findings suggest that firms can enhance CE adoption driven by I4.0 technologies with green logistics practices as a mediator, and the moderating effect of supply chain flexibility is significant while the moderating effect of institutional pressure is insignificant. The study provides valuable insights for managers and contributes to the theoretical understanding of green logistics and CE adoption.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Management
Sudhanshu Joshi, Manu Sharma, Shalini Bartwal, Tanuja Joshi, Mukesh Prasad
Summary: This study explores the challenges of integrating lean manufacturing and Industry 4.0 in the manufacturing industry, and identifies lack of standardization, lack of vision, and lack of trained support as the major obstacles. The research provides valuable insights for managers to implement lean manufacturing and Industry 4.0 in smart manufacturing.
Article
Management
Sudhanshu Joshi, Manu Sharma, Akhilesh Barve
Summary: This study employs the Best Worst Method (BWM) to identify the most critical implementation barriers of IoT and Blockchain technology in Waste Electrical and Electronic Equipment (WEEE) management. The findings reveal that developing a legislative support system, ineffective database management, low understanding of cognitive technologies, and concerns regarding information security and privacy are the key issues in implementing these technologies in closed-loop supply chains.
SUPPLY CHAIN FORUM
(2023)
Article
Green & Sustainable Science & Technology
Manu Sharma, Sudhanshu Joshi, Mukesh Prasad, Shalini Bartwal
Summary: This study proposes a model to examine the critical barriers and suggest strategies for implementing Circular Economy (CE) in the Oil & gas (O&G) industry. The results show that 'knowledge barriers' are the most critical, and the strategies 'Developing collaborative model' and 'Internal research and development, innovation' are the most significant for reducing the barriers.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Sudhanshu Joshi, Manu Sharma, Banu Y. Ekren, Yigit Kazancoglu, Sunil Luthra, Mukesh Prasad
Summary: Food waste reduction and security are major concerns in agri-food supply chains, as more than a third of global food production is wasted or lost due to mismanagement. Resilient food supply chains need to address challenges such as resource scarcity, climate change, and waste generation. This study explores supply chain innovations, using SWARA analysis, to identify the most significant innovations for developing resilient food supply chains. The results highlight the importance of business strategy and technological innovations in bringing resilience to food supply chains.
Article
Business
Manu Sharma, Deepak Kaushal, Sudhanshu Joshi
Summary: Social media has become a major source of information for young users, but it has a severe impact on mental state due to information overload, which is still a concern for researchers. The addiction of Generation Z users to mobile phones/gadgets is increasing with the rise of social media, leading to a complete transformation in their behavioral outcomes. Behavioral issues such as stress, fatigue, fear of missing out, phubbing, and anxiety are on the rise, but the relationship between these issues and information overload has not been sufficiently examined. The study finds that social media platforms need to understand users' compulsive usage, which results in fatigue and anxiety, and government information support plays a positive role in reducing fatigue and anxiety.
JOURNAL OF RETAILING AND CONSUMER SERVICES
(2023)
Review
Multidisciplinary Sciences
Sunil Luthra, Shruti Agrawal, Anil Kumar, Manu Sharma, Sudhanshu Joshi, Jatin Kumar
Summary: Psychological and mental well-being of young adults has been greatly influenced by the COVID-19 pandemic, leading to a global concern. This research study provides an overview of the international scientific studies on the effect of COVID-19 on young adults' psychological well-being. It reveals the top-cited authors, documents, journals, productive countries, keywords, and themes in this area. The United States has contributed the most publications, followed by the United Kingdom and Italy. The study highlights the importance of addressing the psychological health of young adults worldwide.
Article
Health Policy & Services
Sudhanshu Joshi, Manu Sharma
Summary: The widespread use of Blockchain technology (BT) in developing nations is still in its early stages and requires a comprehensive evaluation. The healthcare sector is increasingly in need of digitalization to improve operational efficiency. However, the limited research on BT has hindered its full utilization in the healthcare sector. This study aims to identify the main obstacles to BT adoption in developing nations' public health systems, using a multi-level analysis and hybrid approach. The findings of this study provide guidance and insight for decision-makers on implementation challenges.
Article
Management
Manu Sharma, Sudhanshu Joshi
Summary: This study aims to explore the factors that affect the selection of digital suppliers and evaluate the alternatives for identifying the best supplier that enhances the quality management systems (QMS) for digital supply chains (DSCs). The study reveals that supplier competency is the most significant factor in selecting digital suppliers, and supplier S-8 has been ranked as the best supplier.
Article
Business
Sudhanshu Joshi, Rohit Kumar Singh, Manu Sharma
Summary: This study aims to identify the factors influencing the adoption of sustainable agribusiness practices in India and examines the most pertinent issues. The findings can provide guidance for agribusiness regulators and intermediaries, while contributing to a new understanding of sustainable agribusiness-based issues in India.
GLOBAL BUSINESS REVIEW
(2023)
Article
Business
Rohit Kumar Singh, Sudhanshu Joshi, Manu Sharna
GLOBAL BUSINESS REVIEW
(2023)
