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4,171 results match your criteria: "University of Madras)[Affiliation]"
Sci Rep
December 2024
Department of Mathematics and Statistics, Manipal University Jaipur, Jaipur, 303007, Rajasthan, India.
This article discusses a finite-source stock-dependent stochastic inventory system with multiple servers and a retrial facility. The system can store a maximum of S items, and the lifetime of each item is exponentially distributed. The primary customer arrives at the waiting hall from the finite source and receives service from multi-servers.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
October 2024
Department of Organic Chemistry University of Madras, Guindy Campus Chennai-600 025 Tamilnadu India.
Two new phenyl-sulfonyl-indole derivatives, namely, -{[3-bromo-1-(phenyl-sulfon-yl)-1-indol-2-yl]meth-yl}--(4-bromo-3-meth-oxy-phen-yl)benzene-sulfonamide, CHBrNOS, (), and ,-bis-{[3-bromo-1-(phenyl-sulfon-yl)-1-indol-2-yl]meth-yl}benzene-sulfonamide, CHBrNOS, (), reveal the impact of intra-molecular π-π inter-actions of the indole moieties as a factor not only governing the conformation of ,-bis-(1-indol-2-yl)meth-yl)amines, but also significantly influencing the crystal patterns. For , the crystal packing is dominated by C-H⋯π and π-π bonding, with a particular significance of mutual indole-indole inter-actions. In the case of , the mol-ecules adopt short intra-molecular π-π inter-actions between two nearly parallel indole ring systems [with the centroids of their pyrrole rings separated by 3.
View Article and Find Full Text PDFDrug Discov Today
December 2024
Cell Signaling and Cancer Biology Laboratory, Department of Biochemistry, Guindy Campus, University of Madras, Chennai 600025, India. Electronic address:
Salt-inducible kinases (SIKs), a group of serine/threonine kinases in the adenosine monophosphate-activated protein kinase (AMPK) family, exist in three isoforms: SIK1, SIK2 and SIK3. These kinases are crucial in various physiological processes. Emerging evidence indicates that dysregulation of SIK expression and activation significantly contributes to carcinogenesis by promoting cellular proliferation, metabolic dysregulation, metastasis and chemoresistance through the modulation of crucial signaling pathways.
View Article and Find Full Text PDFBioresour Technol
December 2024
Department of Biotechnology, Sathyabama Institute of Science and Technology, Deemed to be University, Chennai 600 119, Tamil Nadu, India.
This study investigates the potentials of Chlorococcum humicolo algal biomass for the extraction of valuable biochemical and biodiesel production, with focus on the phycoremediation of textile dye effluents. The alga was cultivated in three media: CFTRI medium, combined dye effluent, and dye bath effluent in the laboratory. The highest cell count (254 × 10 cells/ml) and lowest oil content (16.
View Article and Find Full Text PDFMol Biol Rep
December 2024
Department of Genetics, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, Tamilnadu, 600113, India.
Introduction: The changes in histone modifications are linked to the progression of benign and normal tissue to malignancy. Thus, numerous findings suggest that targeting epigenetic factors might be a focus for anti-cancer treatment. In this study, we tested the hypothesis that telomerase activator might be a potential epigenetic regulator in combatting skin cancer cell proliferation.
View Article and Find Full Text PDFLuminescence
December 2024
Department of Polymer Sciences, University of Madras, Chennai, Tamil Nadu, India.
Heterogeneous photocatalysis has been widely explored as a promising solution for dye degradation due to its cost-effectiveness, ease of recovery, and use of green technology. Precisely, iron-doped cadmium sulfide (CdS) exhibits greater efficiency because of its higher charge separation, more electron transfer efficiency, and adsorption under visible region. In this study, two different ratios of iron-doped cadmium sulfide (CdFeS/GO) nanocomposites such as CdFeS/GO and CdFeS/GO were synthesized using the coprecipitation method and characterized with UV-Vis DRS, XRD, FT-IR, Raman, XPS, and HR-TEM.
View Article and Find Full Text PDFIndian J Microbiol
December 2024
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610 054 China.
Unlabelled: The emergence of multidrug resistance in pathogenic organisms has caused growing concern, especially among healthcare providers, necessitating the development of new antimicrobial compounds. Resistance to metal nanoparticles is more challenging for any pathogen and thus paved a new avenue of research to formulate a new line of drugs combined with metal nanoparticles to treat microbial resistance. In this present investigation, green synthesised silver (AgNP), gold (AuNP), and platinum (PtNP) nanoparticles using the rind extract of the fruit of Garcinia mangostana L.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2024
BU-DRDO Center for Life Science, Bharathiar University, Coimbatore 641046, Tamilnadu, India.
Nanoscale
December 2024
Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur - 603203, India.
The design of innovative, flexible electrode materials with high electrochemical performance is critical for the development of next-generation supercapacitors. Here, we report the rational synthesis of NiCoO@carbon hollow spheres, engineered a metal-organic framework (MOF)-templated strategy, as a high-performance electrode material for flexible supercapacitors. The unique hollow structure of NiCoO@carbon enhances ion accessibility and electron transport, while the carbon layer provides structural stability and conductivity, significantly boosting energy storage capabilities.
View Article and Find Full Text PDFInt J Toxicol
December 2024
Department of Endocrinology, Dr. A.L.M Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India.
Endocrine-disrupting chemicals (EDCs) play an important role in the incidence of type-2 diabetes. Di-2-ethyl hexyl Phthalate (DEHP) is one of the endocrine-disrupting chemicals used as a plasticizer to impart flexibility and softness to plastic-containing materials. Mono-2-ethylhexyl Phthalate (MEHP), a DEHP's primary metabolite, is preferentially absorbed once metabolized.
View Article and Find Full Text PDFJ Biomol Struct Dyn
December 2024
Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Chennai, Tamil Nadu, India.
GPR55, an orphan GPCR, holds significance in the context of neurological disorders and its activation is important for regulating neurological responses. This has led us to uncover and explore a set of ligands which may act as potential agonists. We have predicted the GPR55 structural model followed by molecular docking, dynamics simulation studies, free energy landscape and MMPBSA analyses to study the dynamic nature of GPR55 in the presence of different ligands.
View Article and Find Full Text PDFInt J Pharm
December 2024
National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai 600025, India. Electronic address:
This study focuses on the development of biomaterials for bone regeneration highlighting 59S bioactive glass (59S BG), tri-calcium phosphate (TCP), and their 1:1 composite (59S BG/TCP). The synthesized materials demonstrated excellent properties for bone tissue engineering. Characterization revealed their thermal stability up to 900 °C, as confirmed by thermogravimetric analysis (TGA), while X-ray diffraction (XRD) identified calcium phosphate and silicate phases.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
Unit of Research in Radiation Biology & Environmental Radioactivity (URRBER), P.G. & Research Department of Zoology, The New College (Autonomous), Affiliated to University of Madras, Chennai, Tamil Nadu 600 014, India. Electronic address:
Gamma-ray spectrometry was employed to assess the activity concentrations of primordial radionuclides (U, Th, and K) in various construction materials, including those used for building, roofing, furnishing, flooring, and plastering. The measured activity concentrations of the radionuclides ranged as follows: U (25 to 477 Bq kg), Th (below detection limit to 239 Bq kg), and K (285 to 1915 Bq kg). Based on these values, the materials were categorized in descending order of radioactivity threat as: Furnishing > Roofing > Building > Flooring > Plastering.
View Article and Find Full Text PDFToxicology
December 2024
Department of Pharmacology and Environmental Toxicology, Dr. A.L.M. Postgraduate Institute of Basic Medical Sciences, University of Madras, Chennai, India.
Experimental animal models are crucial for elucidating the pathophysiology of liver injuries and for assessing new hepatoprotective agents. Drugs and chemicals such as acetaminophen, isoniazid, valproic acid, ethanol, carbon tetrachloride (CCl), dimethylnitrosamine (DMN), and thioacetamide (TAA) are metabolized by the CYP2E1 enzyme, producing hepatotoxic metabolites that lead to both acute and chronic liver injuries. In experimental settings, acetaminophen (centrilobular necrosis), carbamazepine (centrilobular necrosis and inflammation), sodium valproate (necrosis, hydropic degeneration and mild inflammation), methotrexate (sinusoidal congestion and inflammation), and TAA (centrilobular necrosis and inflammation) are commonly used to induce various types of acute liver injuries.
View Article and Find Full Text PDFACS Appl Bio Mater
December 2024
Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai 600025 Tamil Nadu, India.
Creatinine is indeed a crucial biomarker for kidney diseases. In this work, a novel electrochemical biosensor based on a copper-hemin metal organic framework [Cu-hemin metal-organic framework (MOF)] nanoflake decorated with palladium (Pd) (Pd/Cu-hemin MOF) was fabricated and incorporated with creatinine deiminase (CD) on a glassy carbon electrode (GCE) for creatinine detection. The formation of a Pd/Cu-hemin MOF composite was confirmed by X-ray photoelectron spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy.
View Article and Find Full Text PDFEmerg Microbes Infect
December 2025
Department of Virology and Biotechnology, National Institute for Research in Tuberculosis, Indian Council of Medical Research (ICMR), Chennai, India.
The identification of individuals with the greatest risk of progression to active tuberculosis (TB) disease from the huge reservoir of () infected individuals continues to remain an arduous ascent in the global effort to control TB. In a two-year prospective study, we analysed metabolic profiles in the unstimulated and TB antigen stimulated QuantiFERON supernatants of 14 healthy household contacts (HHCs) who progressed to TB disease (Progressors) and 14 HHCs who remained healthy (Non-Progressors). We identified 21 significantly dysregulated metabolites in the TB antigen-stimulated QuantiFERON supernatants of Progressors, of which the combination of Malic acid and N-Arachidonoylglycine had maximum AUC of 0.
View Article and Find Full Text PDFMol Divers
November 2024
Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, 600 025, India.
HtrA protein is a member of a serine protease family with dual functions as a protease and molecular chaperone. It is a virulence factor in many bacteria, including the food-borne pathogen Listeria monocytogenes (Lm), which induces listeriosis in humans. Hence, inhibitors of LmHtrA protease have great importance in the control of infection.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
February 2025
Department of Polymer Science, University of Madras, Guindy Campus, Chennai, Tamil Nadu 600025, India. Electronic address:
Biosurfactant based biostimulants plays a vital role in agriculture filed by enhancing the soil quality, promote plant growth, and eliminate plant pathogens, and increasing nutrient uptake. This manuscript describes the synthesis of trimesic based lithocholic ester functionalized amphiphiles (TMLCEA) with oppositely charged head groups using thiol-yne click chemistry, which is an effective and simple approach. The trimesic based lithocholic ester functionalized zwitterionic penicillamine (TMLCEPA), cationic cysteamine·HCl (TMLCECy), and anionic thiomalic acid (TMLCETM) exhibited hierarchically self-assembled microstructures from below to above the CMC.
View Article and Find Full Text PDFJ Mater Chem B
November 2024
Post-Graduate and Research Department of Chemistry, The New College, University of Madras, Chennai - 600 014, India.
Four salicylidene-based dual-responsive chemosensors 1,5-bis(5-bromosalicylaldehyde)carbohydrazone (R1), 1,5-bis(5-bromosalicylaldehyde)thiocarbohydrazone (R2), 1,5-bis(3-ethoxysalicylaldehyde)carbohydrazone (R3) and 1,5-bis(3-ethoxysalicylaldehyde)thiocarbohydrazone (R4) were synthesized and characterized. The molecular structures of R1 and R3 were confirmed by single crystal X-ray diffraction technique, which crystallized in the orthorhombic and monoclinic 2/ space groups, respectively. The chemosensor molecules were investigated for their recognition properties against the selected cations (K, Ca, Mn, Co, Ni, Cu, Zn, Fe and Al) and anions (F, Cl, Br, I, HSO, HPO, ClO, N and NO) by colorimetry, absorption spectroscopy, fluorescence spectroscopy, H NMR spectroscopy and theoretical studies.
View Article and Find Full Text PDFBiophys Chem
February 2025
Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India. Electronic address:
Extracellular lipases of many pathogens have been characterized as human virulence factors. Staphylococcus aureus produces a variety of enzymes that aid in the pathogenesis of the bacterium to invade and destroy host tissues, resulting in a wide range of clinical illnesses. The lipase is one such enzyme, and the lipases produced by S.
View Article and Find Full Text PDFChem Biol Drug Des
November 2024
Supramolecular and Catalysis Lab, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, India.
Our research aims to design novel pyrimidine derivatives inspired by the common pyrimidine core found in many FDA-approved drugs. However, extensive prior research on the pyrimidine scaffold has made discovering new molecules more challenging. To overcome this obstacle, we employed a molecular hybridisation strategy, opting to hybridise tetralin and pyrimidine, recognising their potential in cancer therapeutics.
View Article and Find Full Text PDFChem Biodivers
November 2024
PG & Research Department of Biotechnology, Sri Sankara Arts and Science College, University of Madras, Enathur, Kanchipuram, Tamil Nadu, 631 561, India.
Secondary metabolites synthesized by endophytic fungi have garnered significant interest for their broad applications in treating various ailments. In this study involving 20 plant samples, 11 endophytic fungi were isolated and cultured, and Lasiodiplodia pseudotheobromae EF-9, derived from Hibiscus rosa-sinensis, demonstrated greater antibacterial efficacy than the other isolated endophytes. Phylogenetic analyses using 18S rRNA gene confirmed the EF-9 identity as L.
View Article and Find Full Text PDFOdontology
November 2024
Department of Microbiology, Dr. ALM Post Graduate Institute of Basic Medical Science, University of Madras, Chennai, Tamil Nadu, 600113, India.
The study aimed to evaluate the anticancer potential of hinokitiol in treating oral cancer by using in vitro models and examining its interaction with the Pim-1 protein through in silico methods. Hinokitiol was applied to KB-1 oral squamous carcinoma cells, where the half-maximal inhibitory concentrations (IC) was determined. Morphologic changes in treated cells were observed using phase contrast microscopy, while acridine orange/ethidium bromide (AO/EB) staining was used to assess nuclear changes and apoptosis.
View Article and Find Full Text PDFInt J Pharm
December 2024
National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600 025, India. Electronic address:
Atopic dermatitis (AD) is a prevalent chronic inflammatory skin disorder characterized by pruritic and eczematous lesions. Current treatment modalities often focus on symptomatic relief through topical moisturizers to restore impaired skin barrier function. Bioactive glasses, such as 45S5 and 59S compositions, have gained attention for their potential therapeutic applications in dermatological conditions due to their biocompatibility, bioactivity, and ability to promote wound healing.
View Article and Find Full Text PDFJ Reprod Immunol
December 2024
Dept. of Genetics, Dr ALM PG IBMS, University of Madras, Taramani, Chennai, India. Electronic address:
Background: Polycystic ovary syndrome (PCOS) is a common metabolic/ endocrine disorder seen predominantly in women in their reproductive age, which increases the risk of infertility, endometrial cancer and metabolic disorders. IL-27 and IL-38 are recently discovered, novel anti-inflammatory cytokines whose role in immune-endocrine dysfunction seen in PCOS is largely unknown.
Methods: In the present study, we quantified these two cytokines along with markers for meta-inflammation (TNF-α, IL-6, IL-1β, IL-1Ra, IL-10 and TGF-β) and hormonal dysregulation (insulin, leptin, adiponectin, FGF-21, testosterone and DHEA-S) in the serum of PCOS women (n=44), along with age matched controls (n=20), by ELISA.