Brindhadevi Kathirvel

• Professor
• Assistant Professor at Ton Duc Thang University

Activated carbon based Cobalt nanoparticles (Co@AC NPs), considered in the context of hydrogen energy, which is a renewable and sustainable energy, were synthesized by the hydrothermal method, and their catalytic activities were tested. For this, hydrogen production tests were carried out with the help of sodium borohydride (NaBH4) methanolysis of...

Background: Scenedesmus quadricauda isolates were tested for growth kinetics and lipid accumulation capability. Scenedesmus quadricauda revealed greater potential as a biofuel feedstock, based on data gathered on growth parameters and lipid accumulation, as well as RSM and GC–MS tests. Method: In the present study, Scenedesmus quadricauda was seque...

The current study focuses on the capability of microalgae biochar as fuel pellets. Additionally, the study aims to investigate the treatment of synthetic saline wastewater through microalgae cultivation, which is an essential tool for meeting the sustainable environment requirements of nations. Microalgae have the tendency to absorb harmful polluta...

Process Intensification (PI) is the modification or integration of conventional or novel processes within a single unit operation in order to improve product quality and reduce waste. PI offers numerous advantages, including a reduction in the initial and operational costs, an improvement in product quality/quantity, the generation of less waste, a...

Dye-sensitized solar cells (DSSCs) are less expensive and easier to manufacture than silicon-based solar cells. Due to their superior catalytic characteristics and affordability, carbon materials can be used as counter electrodes in DSSCs instead of platinum electrode. Recently, CuSCN has been widely considered a promising candidate for low-cost an...

Biomass energy has become the fourth largest energy source following coal, oil, and natural gas due to its abundantly available sources. At present, pyrolysis oil and biochar are the main products of biomass pyrolysis for applications. Despite this, biomass products still have an untapped potential that deserves further exploration. Research on bio...

Water pollution is the major problem seen in today's scenario and even pollutants at low concentration harms our environment. In industrial sector usage of phenol is seen even at low concentrations. The interaction of phenol in the environment provides adverse effects to living beings. This review focuses on the toxicity of phenol and its impact to...

MnO2 nanoparticles have a wide range of applications, including catalytic abilities due to their oxygen reduction potential. Industrial processes and the burning of organic materials released PAHs into the biosphere which have adverse effects on living organisms when continually exposed. In this study, MnO2 nanoparticles were synthesized chemically...

Mining is one of the major contributors for land degradation and severe heavy metals based soil pollution. In this study, the physicochemical properties of magnesite mine soil was investigated and assess the optimistic and eco-friendly remediation approach with Hibiscus rosa-sinensis with the effect of pre-isolated Acidithiobacillus thiooxidans. Th...

The heavy metal pollution is a serious environmental pollution around the globe and threatens the ecosystem. The physicochemical traits (pH, Electrical conductivity, hardness, NPK, Al, Fe, Cd, Cr, Pb, Mg, and Mn) of soil sample collected from the polluted site were analyzed and found that the most of the metal contents were beyond the acceptable li...

Wood is an insulator material, using its porous structure to endow it with efficient microwave absorption and broaden its application range is still a major challenge. Here, wood-based Fe3O4 composites with excellent microwave absorption properties and high mechanical strength were prepared by alkaline sulfite method, in-situ co-precipitation metho...

A steadily increasing production volume of nanoparticles reflects their numerous industrial and domestic applications. These economic successes come with the potential adverse effects on natural systems that are associated with their presence in the environment. Biological activities and effects of nanoparticles are affected by their entry method t...

The bio-based nanoparticles synthesis and assessment of their potential biomedical applications related research is rapidly emerging. The ability of an aqueous ethanolic bark extract of Mangifera indica to synthesize silver nanoparticles (AgNPs) as well as its antibacterial, anti-inflammatory, and anticancer activities were investigated in this stu...

This study was designed to appraise the antioxidant and anticancer competence of solvent extracts of Tecoma stans (Linn) and analyze the phytoligands interaction against Bcl2 VEGFR2 through in silico studies. The phytochemical analysis revealed that the ethyl acetate extract contains more number of pharmaceutically valuable phytochemicals than othe...

Endocrine disrupting chemicals (EDCs) are toxic compounds that occur naturally or are the output of anthropogenic activities that negatively impact both humans and wildlife. A number of diseases are associated with these disruptors, including reproductive disorders, cardiovascular disorders, kidney disease, neurological disorders, autoimmune disord...

Titanium-based metals are used most often in biomedical implant studies because they have good qualities like being biocompatible, not being poisonous, Osseo-integration, high specific properties, wear resistance, etc. The main goal of this work is to improve the wear resistance of Ti-6Al-7Nb biomedical metal by using a mix of Taguchi, ANOVA, and G...

According to the World Health Organization and the Food and Agricultural Organization of the United Nations, T-2 is one of the most harmful food-toxic chemicals, penetrates intact skin. The current study examined the protective benefits of menthol topical treatment on T-2 toxin-induced cutaneous toxicity in mice. Lesions were observed on the skin o...

Alzheimer's disorder (AD) is associated with behavioural and cognitive destruction with due respect to the neurological degeneration. Conventional therapeutic approach for treatment of AD using neuroprotective drugs suffered certain limitations such as poor solubility, insufficient bioavailability, adverse side effects at higher dose and ineffectiv...

Allium sativum is well known for its therapeutic and culinary uses. Because of their high medicinal properties, the clove extract was selected to synthesize cobalt-tellurium nanoparticles. The aim of the study was to evaluate the protective activity of the nanofabricated cobalt-tellurium using A. sativum (Co-Tel-As-NPs) against H2O2-induced oxidati...

Only T-2 mycotoxin is emitted as an aerosol and is the most toxic fungal secondary metabolite among mycotoxins. In its clinical condition, the skin is severely irritated and painful due to lesions and alimentary toxic aleukia. Herein, we have assessed various bioactive molecules, viz. kaempferol, menthol, curcumin, and quercetin, against T-2-induce...

In recent years, the biosynthesis of silver (Ag) nanoparticles has attracted a great deal of interest for applications in biomedicine and bioremediation. In the present study, Gracilaria veruccosa extract was used to synthesize Ag nanoparticles for investigating their antibacterial and antibiofilm potentials. The color shift from olive green to bro...

Arsenic (As) contamination is a wide-spread environmental threat, representing serious environmental as well as health-related problems. The present study focuses on Arsenic abatement using phycoremediation and nanoparticle mediated adsorption, proposing an effective and affordable As detoxification with scale-up options. A series of experimental a...

The bacterial exopolysaccharides (EPS) enticed the researchers because of its natural protection against predators, and adhesion to the surface. Thus, this study was conducted for the EPS production from Exiguobacterium sp. VK2, the synthesis of Carbon Quantum Dot (CQD) from EPS and it was further used for bioenergy production. The CQD was synthesi...

The influence of hydrogen on the diesel engine has been examined in this study. In addition, the impact of MgO nanoparticles was also analysed by conducting a series of tests on samples such as Diesel (100 % diesel), DN (Diesel-50 ppm MgO), H1N (10 % Hydrogen-50 ppm MgO) and H2N (20 % Hydrogen-50 ppm MgO). Hydrogen was injected through intake manif...

Current health and environmental concerns about the abundance and drawbacks of municipal wastewater as well as industrial effluent have prompted the development of novel and innovative treatment processes. A global shortage of clean water poses significant challenges to the survival of all life forms. For the removal of both biodegradable and non-b...

Commercially available silk sericin protein isolated from silk cocoon (SS) was used to synthesize magnesium nitrate (MgNO3)2 solution to form SS-MgO-NPs nanoparticles. UV, XRD, FTIR, SEM, DLS, and EDX were used to confirm the formation of SS-MgO-NPs. The absorption band of SS-MgO-NPs using UV-visible spectra was observed at 310 nm, with an average...

In this study, liquid chromatography and mass spectrometry were used to screen the active phytochemicals and analyze antioxidant activity of Croton bonplandianum. In addition, cadmium telluride quantum dots were used to analyze the fluorescence quenching capabilities of Croton bonplandianum plants. UPLC-ESI-MS was used to screen polyphenols in the...

The present study describes the isolation and characterization of Bacillus tropicus LS27 capable of keratinolytic protease production from Russell Market, Shivajinagar, Bangalore, Karnataka, with its diverse application. This ability of this strain to hydrolyze chicken feathers and skim milk was used to assess its keratinolytic and proteolytic prop...

Modifying wide band gap ZnO nanoparticles surface by combine narrow bandgap semiconductors is a novel route to promote the ZnO to diverse applications. Herein, different metal sulfides (CdS, Ag2S and Bi2S3) were decorated on ZnO surface using facile a chemical route for photocatalytic application. Crystal structure, surface morphology and optical c...

This research was performed to evaluate the nickel oxide nanoparticles (NiONPs) fabricating potential of orange fruit waste (OFW) aqueous extract. Moreover characterize the synthesized OFW-NiONPs through standard techniques such as UV–vis. spectrophotometer, Fourier-transform infrared spectroscopy (FTIR), dynamic light scattering (DLS) and Scanning...

Nanoparticles synthesis from green chemistry method is gaining a lot of attention due to their non-toxic, low costive and facile. In this study, a copper oxide nanoparticle (CuO NPs) was synthesized using Sida cordifolia aqueous leaf extract and incorporated chitosan biomolecules to potential enhancing of biological properties. The CuO NPs and chit...

The present focused on comparative study on synthesis of ZnO nanoparticles (ZnO NPs) using chemical method via alkaline precipitation method (ZnO(A)NPs) using NaOH and biogenic method using termite mound extract (ZnO(B)NPs). GC-MS analysis revealed that D-limonene present in termite mound extract might be responsible for the synthesis of ZnO(B)NPs....

The current study demonstrated a green, friendly, low-cost biosynthesis of silver nanoparticles (AgNPs) from Kigelia africana leaves (Lam.) Benth. extract (KAE) as both a major capping and reducing agent. The produced AgNPs were characterized using a variety of analytical methods, like the X-ray powder diffraction (XRD), HRTEM, Fourier transforms i...

The fossil fuel crisis can be effectively tackled by the use of alternative fuels. Among the variety of biofuels, production of the biodiesel from the plastic waste seems much more attractive. Conversion of plastic waste into sustainable biodiesel plays a major role in combating the serious concern over the depletion of fossil fuels. The current re...

The emergence of drugs from marine sources, particularly marine plants, has increased in recent years. Hence, the purpose of this study was to assess, evaluate the phytochemical profile, antibacterial, and antioxidant activity of Cymodocea serrulata extract. Furthermore, qualitatively analyzed the predominant components present in the extract which...

The main focus of the study was to witness the effects of chicken waste-based biodiesel blends along with constant hydrogen injection in a modified diesel engine. Furthermore, the nanoparticle multiwall carbon nanotubes (MWCNT) effects on the engine efficiency were also examined. A series of tests was conducted in the single cylinder, water cooled...

The focus point of this current work is to evaluate the anticancer and growth inhibitory efficacy of compounds 5α,8α-epidioxy-24ᶓ-methylcholesta-6,22-dien-3β-ol (LT1), and Ergosta-5,7,22-trien-3β-ol (LT2) of Lentinus tuberregium (Fr.) on three cell lines such as A673 (Rhabdomyosarcoma), MCF7 (breast cancer), and HCT116 (colorectal carcinoma) by MTT...

Ho Chi Minh (HCM) City is the most important urban region of Vietnam, Southeast Asia. In recent times, the quantity of electronic waste (e-waste) has been growing by several thousand tonnes every year. In this research, some of the existing and developing technologies being employed for the recycling of e-waste have been reviewed. Accordingly, the...

Algal biomass is a promising candidate for biofuels/chemicals production in recent decades due to their huge availability and ease of cultivation methods when compared to terrestrial crops. Anaerobic digestion (AD) of algal biomass is viable option for green and sustainable biorefinery to produce energy and waste minimization. In this study, the fe...

Non-enzymatic glycation of biomolecules results in advanced glycation end products (AGEs), which are responsible for secondary complications in diabetes. Inhibiting methyl glyoxal (MGO) induced advanced glycation end product (AGE) formation is the only way to alleviate diabetic complications. This study aimed to look into the abilities of herbal ex...

In this study the methane combustion was analysed with the TiO2 nanoparticles. A series of the simulation runs were performed by varying the fuel inlet velocity. However, the oxidizer and the nanoparticles spray were maintained constant for the entire run. The spray velocity varied from 100 m/s to 200 m/s with titanium dioxide (TiO2) nanoparticles....

In this report, the green fabrication of copper nanoparticles (CuNPs) using Turnera subulata leaf extract and assessed for the antibacterial and photocatalytic activities. The synthesis of CuNPs was performed using the leaves of T. subulate (TS-CuNPs) and characterized using UV–visible spectrophotometry, Fourier transforms infrared spectroscopy (FT...

Immensely expanding world population and narrowing arable land for agriculture is a mighty concern faced by the planet at present. One of the major reasons for decline in arable lands is the increased soil salinity, making it unfavourable for crop cultivation. Utilisation of these saline land for agriculture is possible with suitable invention for...

The current finding reports on the development of highly ordered closely packed TiO2 nanotube arrays on Ti substrate via two-step anodization process. The nanotubes developed by second anodization step (TNT2) were encapsulated with Pt nanoflakes using electro-deposition followed by hydrothermal treatment process. The FE-SEM, FTIR, XRD and contact a...

The current study demonstrated a green, friendly, low-cost biosynthesis of silver nanoparticles (AgNPs) from Kigelia africana leaves (Lam.) Benth. extract (KAE) as both a major capping and reducing agent. The produced AgNPs were characterized using a variety of analytical methods, like the X-ray powder diffraction (XRD), HRTEM, Fourier transforms i...

The present research focuses on optimization of CaO and Fe2(SO4)3 facilitated transesterification conditions through central composite design (CCD) for maximal fatty acid methyl ester yield from Scenedesmus sp. At the outset, neutral lipid extraction of Scenedesmus sp. was done by Soxhlet method using hexane and it showed 13.6% neutral lipid. Conve...

The green alga Nannochloropsis sp. was grown in a medium containing adequate (1.5 g/L sodium nitrate) and absence of nitrogen (0 g/L sodium nitrate) for improving the triacylglycerols (TAGs) level and fatty acid content for sustainable biodiesel production. Initially, the biomass yield of Nannochloropsis sp. was determined from the day of inoculati...

This research paper attempt to provide the photocatalytic performance of nitrogen ion (N⁺) entrenched anodized Ti with hydroxyapatite hybrid nano-sctructure meant for dilapidation of organic contaminant from the environment. The N⁺ was entrenched at 70 keV with varying doses (1 × 10¹⁶, 5 × 10¹⁶, 1 × 10¹⁷ and 2.5 × 10¹⁷ N⁺/cm²) into anodized Ti surf...

The present study focused on microwave assisted synthesis of zirconium nanoparticles (ZrO2 NPs) using leaf extract of Phyllanthus niruri as ecofriendly approach and assessed its antimicrobial and bioremediation efficiency. Visual color transition from yellow to brown indicates the formation of ZrO2 NPs which was further substantiated by UV–Visible...

Textile industry is the major backbone of economy of the developing countries. The major problems associated in the textile factories are release of undesired dye effluents, which is a potential pollution risk for human health as well as the environmental aquatic system. The objective of this study was fabrication of a novel composite to treat text...

Green fabrication of copper nanoparticles is an environmentally friendly and cost-effective method of synthesis for biomedical and bioremediation applications. In recent times, bacterial pathogens contaminating or affecting food and food crops pose the greatest threat to the food industry. In addition to this issue, synthetic dyes released from the...

Finding a potential bioactive compound against a specific mosquito vector is an urgent requirement. Thus, this research was designed to separate the significant compounds present in the crude ethyl acetate extract of Cymodocea serrulata through Thin Layer Chromatography (TLC), Column Chromatography (CC), and High Performance Liquid Chromatography (...

Microalgae are the promising feedstock for biodiesel production than other first and second-generation feedstocks. Generating huge biomass sustainably per unit volume per day is vital to the continuous utilization of algal feedstock for sustainable biodiesel production. But, cultivation and harvesting of microalgae are the significant cost drivers...

A comparative study and experimental tests were conducted by using second generation biodiesel. Owing to problems being faced in the production of first-generation biodiesel using edible sources, the switch over to another reliable source is much more important. A plenty of research has been going on to mend and produce biodiesel from waste sources...

Phytosanitary concerns are part of today's agricultural environment. The use of chemicals to treat plant diseases is both a source of pollution and allows pathogens to become resistant. Additionally, it can improve the chemical, physical, and biological properties of soil. Therefore, the soil environment is more conducive to healthy plant growth. B...

In a desperate attempt to find organic alternatives to synthetic fertilizers, agricultural scientists are increasingly using biochar as a soil amendment. Using chemical fertilizers results in enormous financial burdens and chronic health problems for plants and soils. Global concerns have also increased over the prolonged consumption of foods grown...

Production of biofuels from the green synthesis considered to be the promising source of the energy to replace the conventional fuels. Further the usage of the biofuels in the optimized ratio will effectively reduce the environmental concerns and the reduce the greenhouse gas emission. In this study, the impact of the Botryococcus braunii microalga...

This research was performed to evaluate the possibilities of reducing the physicochemical properties of polluted pond water situated around the magnesite mine tailing through indigenous metal tolerant fungi. The physicochemical analysis results revealed that most of the physicochemical properties of pond water sample were crossing the permissible l...

Aim of this research was to treat the organics enriched Paper and Pulp Industry (PPI) effluents using multi-metal tolerant predominant indigenous bacterial species. In addition, assessing the potential of treated bacterial biomass as a single cell protein (SCP). The multi-metal tolerant Streptomyces tuirus OS1 was enumerated from the Paper and Pulp...

In the global search for alternative drugs for various ailments, products from medicinal plants are given much attention. Attempts are being made to identify bioactive compounds from natural products to develop anticancer agents. In the present study exposes the cytotoxic activity of the extracts of the leaves of the plant Andrographis echioides on...

Zinc oxide reduced into nanosized exhibits antibacterial activity due to the interaction of ZnO with the cell surface and inside of the bacteria making them adaptive candidate for antibacterial activity. ZnO nanoparticles (ZnO NPs) synthesized using plant extract and their biomolecules makes them a safer, non-toxic and bactericidal solution against...

The burgeoning concerns over the non-biodegradable plastics wastes could be surpassed either by proper disposal technique or by an effective conversion of the plastic wastes into useful chemicals. Metal oxide; TiO 2 and porous; AlSBA-15 catalysts were synthesized and a composite characterized using XRD, BET, N 2 adsorption-desorption studies, TPD a...

A synergistic catalyst was architectured using the hydrothermal crystallization method. Mesoporous material with pore diameter less than 20 nm was grown on the microporous Zeolite HY. The catalysts were characterized by XRD, ICP-OES, BET, TPD, SEM and TEM techniques. The SEM picture portrayed excellent core – shell morphology and TEM analysis corre...

Oral health of an individual is a key factor in initiation of oral cancer. Oral cancer can be classified into five stages and involves several risk factors. Novel and safe therapeutic procedures are necessary for this type of aggressive cancer with high mortality and poor diagnosis. Surgery and radiation are common procedures for treatment of oral...

The need for an alternative fuel has been growing swiftly owing to the extravagant use of fossil fuels as a sole energy source for all purposes. This paper investigates the performance, emission and noise characteristics of cellulosic biofuel. A series of tests were conducted in a single cylinder, four stroke DI engine to determine the performance...

Biofuels were getting an enormous attention to be used as fuel for diesel engines. This paper examines the effect of addition of nanoparticles in biofuel on diesel engines. The biofuel used for conducting tests was canola oil. Corn oil was mixed with titanium dioxide (TiO 2) at different proportions as 25 ppm, 50 ppm, 75 ppm and 100 ppm. These nano...

Renewable and sustainable biofuel production from algal biomass has been explored vigorously due to the owing potential of overcoming the limitations of first and second-generation biofuel feedstocks. Thermochemical conversion technologies are considered promising routes for bioenergy production from algal biomass and have been extensively investig...

The aim of the research work is to study the efficiency of Al2O3 nanoparticle as a blending agent and to test the performance characteristics of pyrolyzed plastic oil in an IC engine at EGR conditions. Al2O3 nanoparticle was synthesized, and discarded plastic was pyrolyzed to prepare plastic oil. Different blends of plastic pyrolyzed oil (P10 to P4...

The continuous development of antimicrobial resistance and appearance of new diseases necessitate use of novel and effective antimicrobial molecules. This research work was planned to determine the antimicrobial and metabolite profiling of Streptomyces filamentosus strain KS17 from unexplored regions of Devbag beach, India. The Streptomyces filamen...

Different CO2 concentration such as 0.03, 5, 10 and 15% and low-cost urea repletion/starvation in Chlorella vulgaris on growth, total and non-polar lipid content and fatty acid composition was studied. Chlorella vulgaris grown at 0.03% CO2 apparently revealed inferior biomass yield 0.55 g/L on 14th day compared to CO2 supplemented cells. In the cas...