Article
Chemistry, Physical
K. Geethika, Angel Rose Thomas, T. Srividya Vyjayanthi, Soumit S. Mandal
Summary: Archaea use histone homologues and chromatin proteins to compact their DNA and survive in extreme environments. Cren7, a conserved chromatin protein, binds to DNA and induces structural changes. The binding process is driven by entropy and is independent of the anions present in the solution. Cren7 binding increases DNA flexibility and thermal stability.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Review
Chemistry, Physical
Ehab Samuel, Agnes M. Samuel, Victor Songmene, Fawzy H. Samuel
Summary: This analysis summarizes the solidification and thermodynamic parameters involved in the solidification of aluminum-based alloys using different systems (including binary Al-B and Al-Ti systems, ternary Al-Ti-B and Al-Ti-C systems, and the interaction of Si-TiAl3 in Al-based alloys containing Si) as presented in the literature. The analysis is supported by recent metallographic evidence obtained by the authors on A356.2 alloys. The sections on thermodynamic aspects cover the different models proposed concerning nucleation and growth on a newly formed Al grain.
Article
Chemistry, Multidisciplinary
Saumen Saha, Snehasish Bhattacharjee, Joydeep Chowdhury
Summary: The binding interaction between milk protein beta-lactoglobulin and plant alkaloid berberine has been studied using spectroscopic, calorimetric, and small-angle X-ray scattering techniques. The experiments suggest the formation of a ground-state complex between the two molecules, with fluorescence originating from specific amino acid residues in the protein. The binding parameters were estimated from spectroscopic and calorimetric studies, and the structural changes were investigated using fluorescence resonance energy transfer and circular dichroism analysis. The findings were validated using theoretical docking and molecular dynamics simulations.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Saumen Saha, Snehasish Bhattacharjee, Joydeep Chowdhury
Summary: The binding interaction between milk protein b-lactoglobulin and plant alkaloid berberine has been investigated using spectroscopic, calorimetric, and small-angle X-ray scattering studies. The results suggest the formation of a ground-state complex between b-lactoglobulin and berberine, and the fluorescence of the protein originates from a specific residue. The binding parameters of the complex have been estimated and validated with isothermal titration calorimetry. Fluorescence resonance energy transfer has been observed, and the microenvironment of certain residues in b-lactoglobulin changes in the presence of berberine. Circular dichroism and small-angle X-ray scattering results indicate minimal conformational changes in the protein. Theoretical modeling and simulation support the experimental findings.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Thermodynamics
Elena Yu. Tyunina, Igor N. Mezhevoi, Anna A. Stavnova
Summary: The interactions between the polar basic amino acids Lys and His with the heterocyclic ligand NA were studied in different solutions, with His showing more efficient stabilization with NA in buffer media. The affinity of Lys to binding with NA decreases with increasing pH.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2021)
Article
Thermodynamics
Kgomotso Masilo, Indra Bahadur
Summary: This study investigates the molecular interactions of binary mixtures of acetophenone with carboxylic acids, such as acetic and propionic acid, through the measurement of thermophysical properties. The thermodynamic properties of the binary mixtures are calculated and correlated with the Redlich-Kister polynomial, providing an understanding of the molecular interactions in the mixtures. In addition, the variations of the thermodynamic properties with temperature and acetophenone mole fraction are discussed using FT-IR spectroscopy.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2022)
Article
Electrochemistry
Arafat Toghan, Ahmed Fawzy, Nada Alqarni, Adel Abdelkader, Abbas Alakhras
Summary: The study evaluated the inhibition of mild steel corrosion in sulfuric acid by citrulline and glutamine. Results showed the formation of a protective layer on the surface of mild steel, leading to higher inhibition efficiencies. The overall results are in line with expectations.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sang Loon Tan, Yee Seng Tan, Muhammad Syafiq Bin Shahari, Ahmad Junaid, Anton Dolzhenko, Edward R. T. Tiekink
Summary: Two polymorphs, alpha and beta, of an N-2,6-diaryl-1,3,5-triazine-2,4-diamine derivative have been isolated and show distinct molecular packing and stability of molecular conformation. The alpha-polymorph features expansive, stabilising pi stacking interactions achieved by relatively unstable conformations. The beta-polymorph is the thermodynamically stable form and can be obtained by the conversion of the alpha-polymorph over time or by heating.
Article
Biochemistry & Molecular Biology
Isabela P. Gomes, Talita L. Santos, Amanda N. de Souza, Lucio O. Nunes, Gabriele A. Cardoso, Carolina O. Matos, Livia M. F. Costa, Luciano M. Liao, Jarbas M. Resende, Rodrigo M. Verly
Summary: This study explores the membrane interactions of the antimicrobial peptide HSP1-NH2 derived from tree-frog, revealing the peptide's well-defined helical conformations in both zwitterionic and anionic micelles. It also shows a higher enthalpic contribution of the peptide with anionic vesicles compared to zwitterionic vesicles, and the peptide's disruptive effect on membranes increases proportionately to its concentration.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2021)
Article
Chemistry, Multidisciplinary
Ruirui Sun, Yuqian Zhao, Wenjuan Wang, Jun-Jie Gogo Liu, Chunlai Chen
Summary: Cas12a is commonly used in genome editing and gene regulation. It utilizes one-dimensional diffusion to efficiently search for its target among numerous nonspecific and off-target sites. By studying the interactions between Cas12a and dsDNA, a positive-charge-enriched alpha helix in the REC2 domain was found to facilitate the target search and cleavage process and enhance the specificity of Cas12a. Similar behaviors were observed when residues mediating diffusion of SpCas9 were mutated. Engineering these residues on dsDNA provides a new approach to optimize the CRISPR-Cas toolbox.
Article
Energy & Fuels
Kahkashan Khan, Gitesh Kumar, Amit Kumar Sharma, P. Suresh Kumar, Chandan Mandal, V. Chintala
Article
Environmental Sciences
Kadarkarai Murugan, Udaiyan Suresh, Chellasamy Panneerselvam, Rajapandian Rajaganesh, Mathath Roni, Al Thabiani Aziz, Jiang-Shiou Hwang, Kuppusamy Sathishkumar, Aruliah Rajasekar, Suresh Kumar, Abdullah A. Alarfaj, Akon Higuchi, Giovanni Benelli
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Plant Sciences
Udaiyan Suresh, Kadarkarai Murugan, Chellasamy Panneerselvam, Rajapandian Rajaganesh, Mathath Roni, Al Thabiani Aziz, Hatem Ahmed Naji Al-Aoh, Subrata Trivedi, Hasibur Rehman, Suresh Kumar, Akon Higuchi, Angelo Canale, Giovanni Benelli
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2018)
Article
Polymer Science
Rajendran Amarnath Praphakar, Harshavardhan Shakila, Vijayan N. Azger Dusthackeer, Murugan A. Munusamy, Suresh Kumar, Mariappan Rajan
Article
Engineering, Environmental
Renu Valsala, Suresh Kumar Govindarajan
ENVIRONMENTAL ENGINEERING SCIENCE
(2018)
Article
Nanoscience & Nanotechnology
Amritha Vijayan, Pinky Prabha James, C. K. Nanditha, G. S. Vinod Kumar
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2019)
Article
Engineering, Mechanical
Pankaj Kumar, Akhilendra Singh
Summary: This study compares the mechanical, fracture, and fatigue crack growth behaviors of base material and MIG-welded joints of Al-3.4 Mg alloy. Results show a decrease in fracture toughness and significant improvement in fatigue life for the welded specimens compared to the base material.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2021)
Article
Chemistry, Physical
Mohamad Reda A. Refaai, Shanmukha Naga Raju Vonteddu, Prasanthi Kumari Nunna, P. Suresh Kumar, C. Anbu, Mebratu Markos
Summary: This paper presents an on-grid predictive energy management system using machine learning, which optimizes energy exchange with the utility grid by accurately predicting photovoltaic energy output and load demands through logistic regression. The proposed model is tested on dynamic electricity costs and can handle more than half of the annual load need compared to existing energy systems.
INTERNATIONAL JOURNAL OF PHOTOENERGY
(2022)
Article
Materials Science, Multidisciplinary
Shaohai Li, Moslem Paidar, Shoufa Liu, Sadok Mehrez, P. Suresh Kumar, V. Mohanavel
Summary: This investigation aimed to fabricate AA6061/316 surface composites using single and double pin tools through the Friction Stir Processing (FSP) technique. The results showed that increasing the number of pins significantly affected the dispersion of reinforcement particles and reduced their size, which could be attributed to plastic/strain deformation, dynamic recrystallization (DRX), and pinning effect of reinforcement particles.
Article
Materials Science, Multidisciplinary
S. Dhanasekar, Arul Thayammal Ganesan, Taneti Lilly Rani, Venkata Kamesh Vinjamuri, Medikondu Nageswara Rao, E. Shankar, P. Suresh Dharamvir, P. Suresh Kumar, Wondalem Misganaw Golie
Summary: Ceramic matrix composites (CMCs) are gaining popularity as a material for high-performance and protective components due to their excellent properties under high temperatures and lightweight characteristics. This article discusses the development, properties, and applications of CMCs in the aerospace industry.
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
V. Kanchana, P. Manoj Kumar, P. Suresh Kumar, I Kathir, R. Thirumalai, D. Priya, R. Puviarasi, M. Mohan Prasad
Summary: A systematic assessment was conducted to analyze the water quality parameters and salinity level in underground water samples collected from the suburban area near the coastal line of Chennai. The results indicated that seawater intrusion is the main factor contributing to the salinity of underground water in this zone. To provide a low-cost solution for producing potable water, an effective solar-assisted desalination method using a solar desalting still (SDS) was proposed. The study found that the treatment of salty underground water with SDS significantly improved its quality for domestic use.
Article
Thermodynamics
Ramesh K. Donga, Suresh Kumar, Abhay Kumar
Summary: The study shows that receiver position errors significantly affect the distribution of solar heat flux and temperature distribution on the absorber tube, thereby influencing optical efficiency and collector efficiency.
JOURNAL OF THERMAL ENGINEERING
(2021)
Proceedings Paper
Physics, Condensed Matter
Mohit Tyagi, P. S. Sarkar, R. S. Sengar, Ashwani Kumar, Jagannath, A. K. Karnewar, Ajay Kumar, N. K. Maurya, R. K. Soni, Pankaj Kumar, Manoj K. Pal, A. K. Singh, E. Ravisankar, K. Madhusoodanan, T. A. Puntambekar, Jishnu Dwivedi, S. C. Gadkari
DAE SOLID STATE PHYSICS SYMPOSIUM 2019
(2020)
Article
Thermodynamics
P. Suresh Kumar, Swapnil Joshi, N. Prasanthi Kumari, Amit Sharma, Sathyajit Nair, Suman Chatterjee
Article
Horticulture
P. Suresh Kumar, R. Renganathan, K. N. Shiva, K. Kamaraju, R. Thangavelu, V. Kumar, S. Uma
INDIAN JOURNAL OF HORTICULTURE
(2020)