Raghu Anjanapura

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• Doctor of Philosophy
• Professor at Dayananda Sagar Institutions

A three‐step procedure described in the literature has been used to create N , N , N ‐trimethyl Ct a chitosan derivative that is extremely soluble in water. By combining two polymers in aqueous media, this derivative and tragacanth gum were able to form a new polyelectrolyte complex. The TGA, FTIR, and DSC analysis established the development of TM...

Macrophage polarization is an important phenomenon that underlies various physiological mechanisms protective to the host and pathological mechanisms manipulated by microbes, thus we need to come to terms with this phenomenon and understand it at the molecular level. This paper highlights various aspects of macrophage activation and polarization st...

This study explores the eco‐friendly synthesis of nanoparticles using natural sources, specifically employing Cassia fistula leaf extract for the production of boron nitride nanoparticles. Characterization of the synthesized nanoparticles was performed using Raman spectroscopy and UV‐visible spectroscopy to identify functional groups. Ab initio stu...

Chronotherapy of arthritis that is to reduce the early morning pain in the joints using pH sensitive hydrogel microspheres for colon targeting is a novel approach. Novel ketoprofen‐loaded pH‐sensitive Gellan gum‐Sodium alginate (Gg‐NaAlg) microspheres were developed by emulsion crosslinking method using Ethylene glycol dimethacrylate (EGDMA) as a c...

Background An attempt was made to develop and evaluate the membrane- controlled transdermal systems for the controlled release of nicorandil. The carbopol gel was selected as a drug reservoir, crosslinked blend membranes of XG and SA were selected as rate-controlled membranes (RCM), and a film of poly(vinyl alcohol) (PVA) was selected as the backin...

Nanotechnology research has advanced in the past two decades because of its tunable physicochemical properties. Among the wide range of metal-based nanoparticles, silver nanoparticles (AgNPs) have gained intense research prominence because of their peerless features such as excellent electrical conductivity, catalysis, and a broad range of promisin...

In this work, novel tragacanth gum‐graft‐poly(2‐acrylamido‐2‐methylpropanesulfonic acid) (TG‐g‐PAMPS) hydrogel was synthesized via free radical copolymerization of TG, 2‐acrylamido‐2‐methylpropanesulfonic acid by using ammonium peroxodisulfate and N,N‐methylene‐bis‐acrylamide under microwave radiation, resulting in the cross‐linked graft copolymer...

Corrosion significantly threatens the structural integrity of steel-based constructions like buildings and industrial units. Traditional corrosion inhibitors, such as chromates, are associated with environmental and health risks. This has led to a growing interest in environmentally sustainable alternatives, with plant extracts emerging as promisin...

Oilseeds play a crucial role in the national economy. To enhance their productivity, innovative approaches such as nano fertilizers are essential in the present-day context. The environmentally friendly synthesis approach was employed to produce stabilized nano sulphur using Simarouba glauca leaf extractant. The characterization of the nanoparticle...

In any ailment, the identification of the symptoms, detection, and diagnosis plays a pivotal role in treatment and therapy. However, certain diseases share similar symptoms, lacking signature key indicators, which can lead to fallacious or incorrect inferences. Skin disorders, such as pruritus, dermatitis, eczema, psoriasis, and ichthyosis, all pre...

Introduction: Efficient extraction of camptothecin (CPT), an anticancer agent from the commercial source Nothapodytes nimmoniana (J. Graham) Mabb in India, is of paramount importance. CPT is present in the highest concentration in the stem portion, and the stem can be readily harvested without uprooting the plant. The fluorescence microscopy mappi...

Halide perovskite materials have emerged as a promising new research topic in recent years, with potential applications in solar cells and optoelectronic devices, among others. These materials have significant limitations, including instability to water, heat, UV radiation, and light, limiting their research to the lab scale only. Encapsulation...

The eco-friendly synthesis approach was employed to create nanoparticles by harnessing the inherent properties of natural sources. Cassia fistula leaf extract was utilized for boron nitride production, while Simarouba glauca was employed for sulphur nanoparticles. The nanoparticles' characterization involved identifying functional groups through va...

The dry method of coffee processing generates a significant amount of coffee husk, an agricultural waste for which currently there is a lack of profitable use, and their disposal constitutes a major environmental problem. Pectin was extracted from coffee husk using citric acid solution (pH 1.5) by microwave-assisted extraction method, followed by u...

The diverse populations reportedly suffer from obesity on a global scale, and inconclusive evidence has indicated that both environmental and genetic factors are associated with obesity development. Therefore, a need exists to examine potential therapeutic or prophylactic molecules for obesity treatment. Prebiotics with non-digestible oligosacchari...

Increasing urbanization and industrialization has led to a dramatic increase in demand for clean potable water. Nanotechnology is used in environmental applications to eliminate pollutants, pathogens, and other effluents from water. Nanomaterials have gained importance in sustainable development. Alumina (Al2O3) and its composites are generally use...

In the present work, polycarbazole (PCz)/magnesium cobalt oxide (MgCo2O4)/reduced graphene oxide (RGO) based ternary nanocomposite was prepared through in-situ polymerization, and utilized it as an active electrodes for electrochemical energy storage supercapacitor applications. The electrochemical behaviour of PCz and its nanocomposites were inves...

Multiwalled carbon nanotubes (MWCNTs) have been used in biomedical applications due to their ability to enter the cells. Carboxylic functionalization of MWCNT (MWCNT‐COOH) is used to mitigate the toxicity of MWCNTs. Our study focuses on comparing the toxicity of MWCNT and MWCNT‐COOH on the neuronal cells, LN18. Concentrations of 5, 10, 20, and 40 µ...

Single walled carbon nanotubes have been used in biological applications for targeted drug delivery, and as scaffolds for regeneration and diagnosis of diseases due to their excellent properties. However, their extensive application in biology is stifled by toxicity issues. The present study focuses on the effect of pristine single walled carbon na...

Probiotics are greatly exploited for use as biocatalysts to synthesize γ‐aminobutyric acid (GABA). However, the permeability barrier of the cell envelope is considered to be one of the major hindrances in the effective production of GABA. The objective of this study was to evaluate the GABA producing ability of the permeabilized Enterococcus faeciu...

Biofilm formation is one of the crucial factors for virulence in Candida albicans, Escherichia coli and their polymicrobial biofilm formed on medical prosthetics. In this study, high biofilm forming C. albicans M207 from a case of invasive candidiasis and a standard strain of bacterial culture E. coli ATCC 39936 were used for initial screening and...

Natural wound healing is a highly complex and regulated process. Disruption and barriers to cellular and tissue repair processes contributes to impaired wound healing, including sustained infections. Superficial wound healing requires many factors to work in concrete at the wound site, and thus many treatment options and wound dressings have evolve...

New thiazole derivatives (2a-l) were synthesized via the reaction of 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylic acid with substituted phenyl amines. The anticancer activity of the synthesized thiazole derivatives was examined against MCF-7 (human breast), MDA-MB-231(mammary carcinomas), HeLa (Cervical cancer), HT-29, HCT 116 (Colon...

The gallic acid (GA) obtained from the ethanolic extract of Pomegranate(Punica granatum) pericarp, was successfully applied as a green and effective natural catalyst for the synthesis of novel quinoline based amino acid Schiff base ligand, L (C16H14N4O3) and its divalent metal complexes (where M = Fe(II), Co(II), Ni(II), Cu(II); L=(E)-2-(((2-hydrox...

ZnS and CdS are promising semiconductors due to their excellent optical and catalyst properties. But, its low photon efficiency and high photo corrosion limit their practical applications. Heterojunctions construction and designing advanced structures with a suitable transition metal ions doping are active methods to improve the properties of semic...

The demand for energy is growing day by day owing to population growth worldwide. There is thus a need to search alternate source of energy that is easily available and environmentally benign. Therefore, to meet the challenges and decrease the dependency on fossil fuel, researchers are focusing on alternative resources that are easy to handle, econ...

In recent times, the synthesis of metal nanoparticles (NPs) using plant extracts has recently emerged as an intriguing issue in the field of nanoscience and nanobiotechnology, with numerous advantages over conventional physicochemical approaches. In the current study, ZnO NPs were synthesized from Synadium grantii leaf extricate with varying Cu-dop...

In this research study, novel hydrogel composite films were constructed using different ratios of poly (vinyl alcohol) (PVA)/kappa-carrageenan (KC) (PVA90/KC10%, PVA80/KC20%, PVA70/KC30%, PVA60/KC40%) crosslinked with glutaraldehyde (0.025%) and investigated their physicochemical characteristics such as mechanical, thermal, morphological, swelling...

Nanotechnology is a fast-growing field of science that involves synthesis and development of various nanomaterials, its production, manipulation, and application of materials that range in size from less than a micron to that of individual atomic and/or sub-atomic sizes. Formation of nanoparticles employing fungi and their application in medicine,...

Rare earth based mixed metal oxide nanohybrids have become unique and tend to show impressive performance in different fields of applications such as photocatalytic, and biological, and electrochemical systems. NiO-CGYO [nickel based yttria and gadolinia co-doped ceria, fabricated composition with a formula NiO-Ce0.9Gd0.1O2-δ -Ce0.9Y0.1O2-δ ] nanoc...

The polyaniline (PANI)/nano-fly ash composites were synthesized by Inverted emulsion polymerization technique. The FTIR spectrum of PANI/nano-fly ash composite (50/50) shows the vibrational bands due to N-H stretching (2165 cm⁻¹), quinoid (1517 cm⁻¹) and benzenoid ring stretching (1354 cm⁻¹), etc. The UV-Visible absorption shows an absorption peak...

Chalcone derivatives have been attracting significant attention due to their various pharmacological activities. Changes in their structures have displayed high degree of diversity that has proven to result in a broad spectrum of biological activities. The present study highlights the synthesis of chalcone containing the bromo-thiophene moiety and...

A novel conjugated polyaniline (PANI)-[Cu2Cl4(m-aminophenylbenzimidazole)3] hybrid nanocomposites were prepared by using novel benzoyl peroxide as an organic oxidant by Inverse emulsion polymerization technique. The FTIR spectra of nanocomposites revealed the vibrational bands due to N-H stretching (3437 cm⁻¹), quinoid (1487 cm⁻¹) and benzenoid rin...

The design of new functional materials is a driving force for the development of advanced materials chemistry. Out of many new-style substances, the fabrication of composite nanopowders possesses attracted considerable attention in industry and academia, as they often exhibit significant advancement in the effect of materials estimate to typical ma...

Covid 2019 is spreading and emerging rapidly all over the world as a new social disaster. This virus is accountable for the continuous epidemic that causes severe respiratory problems and pneumonia related to contamination of humans, which leads to a dangerous condition of life. Due to the increasing threatening number of cases all over the world,...

Discovering new industrial applications of microorganisms is diverse as they come from a variety of environmental niches. The majority of existing biotechnological applications are of microbial origin and enzymes are the most important among them. Microbial enzymes surpass those from animals and plant sources due to their ease of production and gen...

Chalcone derivatives have been attracted significant attention due to their various pharmacological activities. Changes in their structures have displayed high degree of diversity that has proven to result in a broad spectrum of biological activities. The present study highlights the synthesis of chalcone containing the bromo-thiophene moiety and s...

Nanomaterials have brought a paradigm shift in the field of science and technology leading to the development of futuristic materials with value addition. Carbon-based nanomaterials specifically graphene-integrated nanostructures have encouraged the field of bioengineering and medicine tangentially with greater insights. The applications are ramifi...

Metal oxide nanoparticles and its hybrids are deemed to be one of the most attractive materials in an extensive range of applications due to their impressive optical, electronic, photocatalytic, and biological properties. Metal oxide based nanomaterials with extraordinary characteristics have been proposed, prepared, and used as main materials in t...

The presence of pesticide residues in foods, especially in cabbage and cauliflower, is a growing concern for producers, traders and consumers. To accurately monitor these residues, a selective and sensitive multiresidue method has been developed and validated for the quantification and also confirmation of multiclass pesticide residues in cabbage a...

An electrically-responsive poly (acrylamide)-graft-pullulan (PAAm-g-PLN) copolymer was synthesized in an inert atmosphere using nitrogen gas and was characterized by 1 H NMR spectroscopy, FTIR spectroscopy, elemental analysis and thermal analysis. Further, we have developed electrically-responsive transdermal delivery systems (ETDS) utilizing PAAm-...

EB member: Current Research in Food Technology and Nutritional Sciences

Hydrogen fuel is a promising alternative to fossil fuels because of its energy content, clean nature, and fuel efficiency. However, it is not readily available. Most current producion processes are very energy intensive and emit carbon dioxide. Therefore, this article reviews technological options for hydrogen production that are eco‐friendly and g...

Fischer-Tropsch (FT) process has great potential to accomplish energy security but also for utilizing greenhouse gases to address the energy problem. Different kinds of feedstocks like coal, biomass (via gasification), CO2, methane (via reforming), and nonconventional energy sources are used to obtain the syn-gas (CO and H2). The formation of hydro...

Mixed metal oxide nanocomposites (rare earth-based) have become irreplaceable and tend to display great functioning in all kinds of arenas like as photocatalytic, electrochemical, and biological. NiO-CGSO [NiO-Ce0.8Gd0.2O2-δ–Ce0.8Sm0.2O2-δ] nanomaterial was produced by the wet-chemical route for numerous purposes. The development of (FCC) face-cent...

Barium titanate nanoparticles (NPs) were synthesised using a modified sol–gel technique. The structure and morphology of NPs were described using various techniques. The photocatalytic activities of the NPs were evaluated by the photocatalytic degradation of Eriochrome black T and potassium dichromate in the presence of UV light irradiation. The ba...

Titanium dioxide remains a benchmark photocatalyst with high stability, low cost, and less toxicity, but it is active only under UV light; thus, in practical applications using visible light, its catalytic reactions are stalled. To enhance its catalytic activity under visible light, non-metal/codoped TiO2 structures are being studied. These structu...

In the current study, PVA/TiO2 based nanocomposites films were prepared via solutions blending and solvent evaporating technique. The tensile properties and phase morphology of the prepared PVA/TiO2 nanocomposites films were investigated using Universal testing machine (UTM) and Scanning electron microscope (SEM) respectively. Further, Water contac...

The comparison of adsorption of hazardous dyes such as Evans blue, Congo red and Rhodamine B is studied using novel calcium hexaferrite (CaAl5Fe7O19) nanoparticles, which are synthesized through the solution combustion method. During the synthesis process, the calcium hexaferrite nanoparticles are doped with 15.5% of aluminum nitrate. The synthesiz...

Organic contaminants (textile dyes, pesticides) in industrial wastewater have adverse effects on the environment and human health. Such environmental pollutants are resistant in the environment and are difficult to completely remove through treatment techniques. Therefore, titanium dioxide (TiO2) nanostructure-based photocatalytic processes have re...

Alcohols are the essential chemicals used in a variety of pharmaceutical and chemical industries. The extreme purity of alcohols in many of such industrial applications is essential. Though distillation is one of the methods used conventionally to purify alcohols, the method consumes more energy and requires carcinogenic entertainers , making the p...

Aims & Scope: Graphene based materials are great important in the modern world/industries. Recent advances in Graphene-technology give major role like fabrication, manufacture, and cost effective etc., Knowledge and understanding of these conditions have led to the development of solar, batteries, fuel cell, drug delivery, catalysis, photo catalyst...

The semiconducting thin film materials are the main key elements in the fields of photonic, electronic and magnetic devices. The preparation of materials in the form of thin films allows easy incorporation into various through changing the properties of materials and reducing the size. The core benefits of thin film systems are cost reduction and e...

The generation of hydrogen and oxygen from the photocatalytic water splitting reaction under visible light is a promisingly renewable and clean source for H 2 fuel. The transition metal oxide semiconductors (e.g. TiO 2 , WO 3, ZnO, and ZrO 2 ) are have been widely used as photocatalysts for the hydrogen generation. Because of safety, low cost, chem...

In recent years, the electrochemical sensors are used extensively due to their unique properties, especially in the biomedical research. Conducting polymers are well known for their inbuilt charge transfer properties and biocompatibility. Modification of conducting polymers using metal particles, metal oxides, and carbon materials enhance the sensi...

An electro-responsive PAAm-g-Dxt copolymer was synthesized and characterized by ¹ HNMR & FTIR spectroscopy, neutralization equivalent, elemental and thermogravimetric analysis to ascertain the grafting reaction. Further, we developed an electro-responsive transdermal drug delivery system (ETDS) utilizing PAAm-g-Dxt copolymer for rivastigmine tartar...

The paper and pulp industry (PPI) produces high quantities of solid and liquid discharge and is regarded as the most polluting industry in the world causing adverse effects to environments and human beings. Hence changes in the way PPI sludge and waste materials are treated is urgently required. Nearly, 10 million tons of waste is generated per yea...

Prebiotics plays an important role in improving the growth of gut bacteria and it majorly found in various natural food sources such as fruits and vegetables. Nowadays, the prebiotic sources are added as a supplement in various food products such as dairy products, beverages, health drinks, infant formulae, and meat products. The presence of prebio...

Inorganic metal oxide semiconductor-based photocatalyst plays key role in the photocatalytic process for applications such as environmental pollution (air and water) and hydrogen generation, due to their physico-chemical and photocatalytic properties. However, they are only active under ultraviolet irradiation, and it is a major drawback of oxide-b...

Microbes exist in every type of environment and the human gut is no exception. These microbes play a very crucial role in health and metabolism. Synthetic Gutomics is an effort to describe the engineering of the gut microbiota for ameliorating human disorders. This technology uses non-invasive treatment of diseases by improving a healthy microbial...

The adsorption capacity of the surface of cobalt ferrite (CoFe2O4) nanoparticles as an adsorbent was investigated. Malachite green dye in aqueous solution was used as the model compound. Various dosages of cobalt ferrite nanoparticles (0·01-0·07g) were used to determine the capacity to adsorb malachite green. Characterisation of cobalt ferrite was...

In this chapter, the recent research developments in the characteristics of various clays, their uses in the synthesis of various types of polymer composites (commodity, high-performance, and conducting polymers) through different chemical methodologies (e.g., intercalation mechanism, exfoliation process), their properties, and applications of laye...

Publons Review Week Award 2018

During the past few decades, electronic technology has experienced tremendous growth especially due to the advent of advanced and next generation nanoelectronic devices for var- ious potential applications. Development of alternative materials in place of silicon semicon- ductors in alternative energy conversion/storage resources is crucial, leadin...

INTERNATIONAL CONFERENCE

Arunai International Award 2018

AWARD

New racemic 3-isobutyl-5-phenyl-5-(pyridin-4-yl)imidazolidine-2,4-dione was synthesized, isolated, characterized spectrally, thermally and finally the structure was confirmed by X-ray diffraction studies. Both XRD and DFT/B3LYP/6-31G(d,p) optimized structures of the compound revealed the diketo monomer as favored tautomer isomer structure. The mole...

RSRS AWARD