Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

&nbsp;

&nbsp;

VIT University

VIT School of Law

World University root node

Chennai Campus

Environmental Chemistry Letters

Nanoemulsion ingredients and components

Toxicity and regulations of food nanomaterials

Nanoencapsulation is a promising technology allowing miniaturized dosage and administration of valuable volatiles, degradable bioactives and biologicals. The produced nanoparticles display qualities such as a sustained availability of active constituents, targeted delivery and enhanced shelf stability. This review presents methods of nanoencapsulation and nanoemulsion, such as solvent evaporation–emulsification, coacervation, nanoprecipitation, inclusion complexation, electrospraying, electrospinning, freeze drying and spray drying. Those methods are particularly relevant for the pharmaceutical, food and agricultural industries. © 2019, Springer Nature Switzerland AG.

VIT Unitversity

Department of Biotechnology

School of Bio Sciences and Technology

Vellore Campus

Methods for nanoemulsion and nanoencapsulation of food bioactives

Most of the common redox mediators such as organic dyes and cyanide ligand-associated metal complex systems that have been used for various electrochemical applications are hazardous nature. Sesamol, a vital nutrient that exists in natural products like sesame seeds and oil, shows several therapeutic benefits including anticancer, antidiabetic, cardiovascular protective properties, etc. Herein, we introduce a new electrochemical redox platform based on a sesamol derivative, sesamol-quinone (Ses-Qn; oxidized sesamol), prepared by the in situ electrochemical oxidation method on a carbon nanoblack chemically modified glassy carbon electrode surface (GCE/CB@Ses-Qn) in pH 7 phosphate buffer solution, for nontoxic and sustainable electrochemical, electroanalytical, and bioelectroanalytical applications. The new Ses-Qn-modified electrode showed a well-defined redox peak at Eo = 0.1 V vs Ag/AgCl without any surface-fouling behavior. Following three representative applications were demonstrated with this new redox system: (i) simple and quick estimation of sesamol content in the natural herbal products by electrochemical oxidation on GCE/CB followed by analyzing the oxidation current signal. (ii) Utilization of the GCE/CB@Ses-Qn as a transducer, bioelectrocatalytic reduction, and sensing of H2O2 after absorbing the horseradish peroxidase (HRP)-based enzymatic system on the underlying surface. The biosensor showed a highly selective H2O2 signal with current sensitivity and detection limit values 0.1303 μA μM-1 and 990 nM, respectively, with tolerable interference from the common biochemicals like dissolved oxygen, cysteine, ascorbic acid, glucose, xanthine, hypoxanthine, uric acid, and hydrazine. (iii) Electrochemical immunosensing of white spot syndrome virus by sequentially modifying primary antibody, antigen, secondary antibody (HRP-linked), and bovine serum albumin on the redox electrode, followed by selective bioelectrochemical detection of H2O2. © 2018 American Chemical Society.

Department of Chemistry

School of Advanced Sciences

Fulltext

ACS Omega

In Situ Immobilized Sesamol-Quinone/Carbon Nanoblack-Based Electrochemical Redox Platform for Efficient Bioelectrocatalytic and Immunosensor Applications

A novel superhydrophobic octadecyltrimethoxysilane (OTMS)-modified composite membrane was fabricated by incorporating recycled carbon black (CB).

Environmental Science: Water Research & Technology

Anti-wetting behaviour of a superhydrophobic octadecyltrimethoxysilane blended PVDF/recycled carbon black composite membrane for enhanced desalination

The reaction of IR 50, TRY 3, and IR 36 cultivars of rice to R. solani challenge, the causal agent of sheath blight, and its toxic metabolite was studied. Differential response of these cultivars to the pathogen and/or toxin inoculation was observed in detached leaf sheaths and greenhouse-grown plants. The observations were based on disease scoring, electrolyte leakage, and also microscopic views of infection cushions. The Osmyb4 gene expression was studied in the tissues from all these experiments and a correlation between the level of expression and disease response of the varieties was found at least in some experiments. The mechanisms regulated by Osmyb4 might have a lower but significant contribution to the tolerance of rice cultivars to sheath blight.

Plant Protection Science

Responses of rice to Rhizoctonia solani and its toxic metabolite in relation to expression of Osmyb4 transcription factor

Background: Marine actinomycetes are efficient producers of new secondary metabolites that show different biological activities, including antibacterial, antifungal, anticancer, insecticidal, and enzyme inhibition activities. Methods: The morphological, physiological, and biochemical properties of the strain Streptomyces sp. VITPSA were confirmed by conventional methods. Antibacterial, anti-oxidant, anti-inflammatory, anti-diabetic, and cytotoxic activities of Streptomyces sp. VITPSA extract were determined. The media were optimized for the production of secondary metabolites. Characterization and identification of secondary metabolites were conducted by high-performance liquid chromatography, gas chromatography-mass spectroscopy, and Fourier transform infrared spectroscopy analysis. Results: The strain showed significant antibacterial, anti-oxidant, and cytotoxic activities, moderate anti-inflammatory activity, and no satisfactory anti-diabetic activity. The ethyl acetate extract of Streptomyces sp. VITPSA showed maximum antibacterial activity against two gram-positive and gram-negative bacteria at 0.5 mg/mL. The antioxidant potential of the crude extract exhibited strong reducing power activity at 0.5 mg/mL with 95.1% inhibition. The cytotoxic effect was found to be an IC50 of 50 μg/mL on MCF-7 cell lines. Experimental design of optimization by one-factor analysis revealed the most favorable sucrose, yeast extract, pH (7.25), and temperature (28°C) conditions for the effective production of secondary metabolites. Conclusion: This study revealed that Streptomyces sp. VITPSA is an excellent source of secondary metabolites with various bioactivities. © 2017, Higher Education Press and Springer-Verlag GmbH Germany.

Frontiers in Biology

Bioactive compounds from marine Streptomyces sp. VITPSA as therapeutics

A univalent meromorphic function we defined on Δ:={z ϵℂ:1<|z|<∞} with univalent inverse defined on Δ is bi-univalent meromorphic in Δ. We defined for certain subclasses of meromorphic bi-univalent functions. We obtained estimates on the initial co-efficients. There are many subclasses of analytic and univalent functions. Following the works of Brannan and Taha (1986), Frasin and Aouf (2011) (see also Goodman 1983 and Ma-Minda Bazilevic 1955) on analytic and univalent fumctions, in this paper, we introduce and investigate a new subclass of the function class (formula presented). © Rushing Water Publishers Ltd., Philippines 2017.

Mathematics

Communications of the Korean Mathematical Society

COEFFICIENT ESTIMATES FOR CERTAIN SUBCLASS OF MEROMORPHIC AND BI-UNIVALENT FUNCTIONS

Department of Bio-Medical Sciences

Research Journal of Pharmacy and Technology

Novel Actinomycetales bacterium-PV7 isolated from Kanyakumari Marine Sediments: A Prospective Source for Industrial and Pharmaceutical Enzyme Production

Herein, we report a simple electroanalytical detection method based on ultra-low cost pencil graphite as an elegant sensor for simultaneous and separation-free detection of Hx, X and UA.

Analytical Methods

Pencil graphite as an elegant electrochemical sensor for separation-free and simultaneous sensing of hypoxanthine, xanthine and uric acid in fish samples