Palanivel Sathishkumar

Saveetha Institute of Medical and Technical Sciences (SIMATS) · Biomaterials

Black soldier fly larvae (BSFL) Hermetia illucens is fastest growing and most promising insect species especially recommended to bring high-fat content as 5th generation bioenergy. The fat content can be fully optimized during the life-cycle of the BSFL through various organic dietary supplements and environmental conditions. Enriched fat can be ob...

We developed novel fluorine and nitro-containing stilbene-linked carbazole-based fullerene (C60) derivatives for bulk heterojunction organic solar cells (BHJ-OSCs). The synthesized fullerene derivatives (FCzC61BM and NCzC61BM) have hexyl chains that possess good solubility in toluene and chlorobenzene organic solvents. The extended conjugation of F...

The current study presents a viable and straightforward method for synthesizing titanium lanthanum three oxide nanoparticles (TiLa) and their decoration onto the ferrous graphene oxide sheets to produce FeGO-TiLa as efficient magnetic adsorbent. Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X...

For decades, most of the developing nations have relied on chlorpyrifos for insecticidal activity in the agriculture sector. It is a common chlorinated organophosphorus pesticide that has been widely used to control insects to protect plants. This study aimed to investigate the effects of environmental characteristics such as salinity, pH, temperat...

Perchlorate (ClO4⁻) comes under the class of contaminants called the emerging contaminants that will impact environment in the near future. A strong oxidizer by nature, perchlorate has received significant observation due to its occurrence, reactive nature, and persistence in varied environments such as surface water, groundwater, soil, and food. P...

The work is devoted to evaluation of the ability of Phragmites australis Сav. to indicate the soil pollution with heavy metals (HMs) and priority polycyclic aromatic hydrocarbons (PAHs) by studying changes in the plant’s ultrastructure. The concentration of Mn, Cu, Cr, Cd, Pb, Zn, Ni as well as 16 priority PAHs in hydromorphic soils and macrophyte...

Chitin is one of the most diverse and naturally occurring biopolymers, and it is mainly present in crustaceans, insects, and fungi. Chitosan is derived from chitin by deacetylation process. It is important to note that the conventional chemical method of extracting chitin includes disadvantages and it poses various environmental issues. Recently, t...

Eggshell membrane (ESM) is a highly-collagenized, biopolymeric fibrous network generally considered domestic and industrial waste. However, its inherent extraordinary properties have made ESM widely used in different fields due to its high potential applications, especially in the biomedical field. In this study, a poly (Ɛ-caprolactone) (PCL) integ...

Mycotoxins are secondary metabolites of fungi that cause severe damage to agricultural products and food in the food supply chain. These detrimental pollutants have been directly linked with poor socioeconomic patterns and human health issues. Among the natural micropollutants, ochratoxin A (OTA) and deoxynivalenol (DON) are widely distributed in f...

Phycoerythrin (PE) is a photosensitive red pigment from phycobiliprotein family predominantly present in the red algae. The concentration of PE depends on photon flux density (PFD) and the quality of light absorbed by the algae tissue. This necessitates robust techniques to extract PE from the embedded cell-wall matrix of the algal frond. Similarly...

The widespread use of disposable face masks as a preventative strategy to address transmission of the SARS-CoV-2 virus has been a key environmental concern since the pandemic began. This has led to an unprecedented new form of contamination from improperly disposed masks, which liberates significant amounts of heavy metals and toxic chemicals in ad...

Numerous chemical substances are used for daily life activities have an effect on the endocrine system and are frequently classed as endocrine-disrupting chemicals (EDCs). The present study investigated the fact and distribution of EDCs type (estrogen, plasticizer, and preservative). In particular, EDCs such as estriol, 1,2,4 triazole, 17α-ethinyle...

Aquaculture industry is one of the world’s fastest and largest growing food producing sector. Most importantly, the usage of fish meal in aquaculture has been replaced with alternate protein sources due to their production cost, demand of raw materials and various environmental issues. The insect black soldier fly (Hermetia illucens) larval (BSFL)...

The present study aims to produce a natural drug-incorporated nano-based wound-dressing material with high biocompatibility and enhanced antibacterial efficacy for promoting rapid wound healing. Electrospun curcumin-loaded poly(ɛ-caprolactone) (PCL/Cur) membrane is successfully fabricated and characterized using standard techniques. The fabricated...

Aquaculture industry is one of the major food-producing sectors in the world that provide nutritional food security for mankind. Fish and crustacean farmers are facing various challenges in treating the rapid spread of infectious diseases in recent times. Numerous strategies, including antibiotics, disinfectants, and other antimicrobial agents, hav...

The emergence and continual accumulation of industrial micropollutants such as dyes, heavy metals, organic matters, and pharmaceutical active compounds (PhACs) in the ecosystem pose an alarming hazard to human health and the general wellbeing of global flora and fauna. To offer eco-friendly solutions, living and non-living algae have lately been id...

Diclofenac is an anti-inflammatory drug used as an analgesic. It is often detected in various environmental sources around the world and is considered as one of the emerging contaminants (ECs). This paper reviews the distribution of diclofenac at high concentrations in diverse environments and its adverse ecological impact. Recent studies observed...

Endosulfan, an organochlorine pesticide, is categorized as persistent organic pollutants (POPs) in the Stockholm Convention and phased out globally. In this review, the distribution, toxicity, and interactive effect of endosulfan isomers and their remediation approaches are discussed. The occurrence of endosulfan residues in various environmental c...

In the satisfactory design and synthesis of high-performance nonlinear optical (NLO) materials, for meeting the rapidly expanding demands of optoelectronic devices, a deeper understanding of the relationship between the structures and NLO properties has become a key issue. Herein, five novel mislinked expanded hexaphyrins with different connections...

Indonesia is the second-largest contributor of microplastics (MPs) pollution in the marine ecosystem. Most MPs pollution-related studies in Indonesia focus on seawater, sediment, with less information found on the commercially important fish species used for human consumption. Skipjack Tuna (Euthynnus affinis) is one of the major exporting fishery...

In this study, zinc oxide-quercetin (ZnO-quercetin) nanocomposite was constructed as smart nano-drug delivery system. The amount of quercetin loaded onto the ZnO nanoparticle was found to be 210 µg mg −1. The quercetin release kinetics data indicates that the rate of quercetin release was faster in acidic condition (pH of typical cancer) compared t...

Background: Insects are a living resource used for human nutrition, medicine, and industry. Several potential sources of proteins, peptides, and biopolymers, such as silk, chitin, and chitosan are utilized in industry and for biotechnology applications. Chitosan is an amino-polysaccharide derivative of chitin that consists of linear amino polysacc...

Since a few centuries ago, organochlorine compounds (OCs) become one of the threatened contaminants in the world. Due to the lipophilic and hydrophobic properties, OCs always discover in fat or lipid layers through bioaccumulation and biomagnification. The OCs are able to retain in soil, sediment and water for long time as it is volatile, OCs will...

As one of the largest oil palm producers in the world, Malaysia also produces the most abundant residues of palm oil known as empty fruit bunch (EFB). Mismanaging of this residue such as being unused and disposed to sanitary landfills will put the environments in danger. Hence, modification and environmental application of EFB for the pollutant rem...

The interest in new emerging pollutants (NEPs) does not only focus on the main compounds but also the degradation or intermediate products. It is important to have an effective primary treatment for the removal/degradation of NEPs from hospital and clinical wastewater to protect the environment. In this study, nifedipine degradation was performed b...

Up-scaling technologies for use during the processing of waste materials offer the hope of a sustainable environment. Under an optimistic scenario, recycling and reuse of waste materials, especially food waste, may reverse the global shortage of raw materials. In contrast to previous strategies, the biorefinery concept could be a reality, through w...

Metal-organic framework (MOF)-derived hybrids are promising electrode materials in electrochemical energy storage, owing to their high surface area that offers enormous redox sites and excellent conductivity. In this work, MOF-derived cerium oxide/carbon integrated with molybdenum disulfide (CeO2/C/MoS2) hybrid is developed as an electrode material...

Tropical and sub-tropical fruits are tremendous sources of polysaccharides (PSs), which are of great interest in the human welfare system as natural medicines, food and cosmetics. This review paper aims to highlight the recent trends in extraction (conventional and non-conventional), purification and analytic techniques of fruit polysaccharides (FP...

Materials with outstanding nonlinear optical (NLO) response exhibit excellent prospects in electrooptic devices. Thus, it is essential to find a high-performance NLO material to meet the growing demand for high-speed data transmission. In this study, theoretical investigations on the second order NLO properties of the novel expanded mislinked thia-...

This study focused on a novel approach for biodiesel production and metallic iron synthesis using biochar obtained from the biomass residue of green microalgae Botryococcus sp. Hematite (Fe 2 O 3) is one of the most important iron ore used in steelmaking industries. Thus, we proposed this work for the development of algal biorefinery concept at com...

In this study, flavonoid myricetin-mediated gold nanoparticles (Myr-AuNPs) were synthesized and their mole- cular interactions were evaluated through a combined experimental and theoretical study. The physicochemical properties of the synthesized Myr-AuNPs were characterized using TEM, FT-IR, and XRD analysis. The average particle size of the Myr-A...

A copper sulfide nanoflakes-decorated carbon nanofragments-modified glassy carbon electrode (CuS-CNF/GCE) was fabricated for the electrocatalytic differentiation and determination of hydroquinone (HQ) and catechol (CC). The physicochemical properties of the CuS-CNF were characterized by scanning electron microscopy, transmission electron microscopy...

Paraquat dichloride commonly used as herbicide was determined by differential pulse cathodic stripping voltammetry technique. Experimental parameters, such as pH, accumulation time, accumulation potential and initial potential were optimized. In this analysis, paraquat dichloride exhibited a well-defined tworeduction peaks at −0.35 and −0.90 V in t...

In this study, polyvinylidene fluoride (PVDF) nanocomposite membranes with different fillers were fabricated using electrospinning technique. The physico-chemical properties of electrospun membranes such as PVDF (NF1), PVDF-polyvinyl pyrrolidone (PVP) (NF2), PVDF-activated carbon (AC) (NF3), PVDF-MnO2 (NF4), PVDF-PVP-AC (NF5), and PVDF-PVP-MnO2 (NF...

Metal-organic frameworks (MOFs) are very promising self-sacrificing templates to develop the large-scale fabrication of new functional materials for energy conversion and storage. In this study, novel multidoped porous mixed metal oxides Cu0.39Zn0.14Co2.47O4-ZnO nanoparticles were successfully fabricated through one-step pyrolysis of a polymetallic...

The fabrication of robust sensors for the monitoring of emerging contaminants in real-life water samples has received much attention. In this study, copper oxide and carbon nano-fragment modified glassy carbon electrode (CuO-CNF/GCE) based electrochemical sensor was developed for the simultaneous monitoring of dihydroxybenzene isomers such as catec...

With growing population and urbanization, there is an increasing exploitation of natural resources, and this often results to environmental pollution. In this review, the levels of heavy metal in lentic compartments (water, sediment, fishes, and aquatic plants) over the past two decades (1997–2017) have been summarized to evaluate the current pollu...

Nanomedicine utilizes biocompatible nanomaterials for therapeutic purposes to treat various diseases. Flavonoids present in the plant materials act as both reducing and electrostatic stabilizing agents for the ‘Green’ synthesis of metal nanomaterials. Further, these nanomaterials are effectively used to treat various cancer cells and pathogenic mic...

Metal–organic frameworks (MOFs) are very promising self-sacrificing templates for the large-scale fabrication of new functional materials owing to their versatile functionalities and tunable porosities. Most conventional metal oxide electrodes derived from MOFs are limited by the low abundance of incorporated metal elements. This study reports a ne...

Silver nanoparticles (AgNPs) were biosynthesized using Bauhinia variegata flower extract (BVFE). The BVF-AgNPs was found to be spherical shaped with the size of 5-15 nm. The phytoconstituents analysis and FTIR spectrum indicated that bioactive compounds like, phenols, flavonoids, benzophenones, nitro compounds, aromatics and aliphatic amines from B...

Bisphenol A (BPA) is highly considered as an emerging contaminants (ECs) due to their endocrine disrupting and reproductive toxicant nature. It has been detected in drinking water sources in many countries. This study deals with the adsorptive removal of BPA using nylon 6,6 nanofibrous membrane (NNM) fabricated by electrospinning technique. Langmui...

Background: Toxicity due to excess fluoride concentration in drinking water is of great concern in people who rely only on the ground water as their water source in many region of the world. Methods: We collected samples and examined the toxicity of fluoride in a population residing at Salem, Dharmapuri and Krishnagiri districts of Tamil Nadu, I...

The aqueous extract of various plants like C. sativum (AECS), A. tenella colla (AEAT), S. hispida (AESH) and M. verticillata (AEMV) was studied for its hexavalent chromium (CrVI) reduction property. Even though antioxidant activity was present, AEAT, AESH and AEMV did not reduce CrVI. AECS showed rapid and dose-dependent CrVI reduction. The efficie...

In this study, laccase was immobilized on nylon 6,6/Fe3+ composite (NFC) nanofibrous membrane and used for the detoxification of 3,3′-dimethoxybenzidine (DMOB). The average size and tensile strength of the NFC membrane were found to be 60–80 nm (diameter) and 2.70 MPa, respectively. The FTIR results confirm that the amine (N–H) group of laccase was...

In this study, laccase was immobilized on nylon 6,6/Fe³⁺ composite (NFC) nanofibrous membrane and used for the detoxification of 3,3′-dimethoxybenzidine (DMOB). The average size and tensile strength of the NFC membrane were found to be 60–80 nm (diameter) and 2.70 MPa, respectively. The FTIR results confirm that the amine (N–H) group of laccase was...

In this study, a newly isolated ascomycete fungus Trichoderma lixii F21 was explored to bioremediate the polar [Alizarin Red S (ARS)] and non-polar [Quinizarine Green SS (QGSS)] anthraquinone dyes. The bioremediation of ARS and QGSS by T. lixii F21 was found to be 77.78 and 98.31 %, respectively, via biosorption and enzymatic processes within 7 day...

In this present investigation, AgNPs were green synthesised using Coriandrum sativum leaf extract. The physicochemical properties of AgNPs were characterised using UV-visible spectrophotometer, field emission scanning microscopy/energy dispersive X-ray (FESEM/EDX), Fourier transformed infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and Bruna...

In this study, a glassy carbon electrode (GCE) was modified with multi-walled carbon nanotubes (MWCNTs), 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim]PF6), N,N′-bis(2-hydroxyacetophenone)ethylenediamine (BZE) and Nafion to form a MWCNT-BZE-[bmim]PF6-Nafion-GCE. The electrochemical behaviour of the modified electrode with respect to silver...

In this study, phyto-synthesis of silver nanoparticles (AgNPs) was achieved using an aqueous leaf extract of Alternanthera tenella. The phytochemical screening results revealed that flavonoids are responsible for the AgNPs formation. The AgNPs were characterised using UV–visible spectrophotometer, field emission scanning microscopy/energy dispersiv...

Biodegradation Pathway of Acid Red 27 by White-Rot Fungus Armillaria sp. F022 and Phytotoxicity Evaluation Armillaria sp. F022, a basidiomycete fungus isolated from a recreational forest in Johor, Malaysia, was tested for its biodegradation ability of the azo dye Acid Red 27 (AR27). Varying carbon and nitrogen sources, agitation, and inoculum conce...

In this study, zinc oxide (ZnO) layer was synthesised on the surface of Zn plates by three different techniques, i.e., electrolysis, hydrogen peroxide and heat treatment. The synthesised ZnO layers were characterised using scanning electron microscopy, X-ray diffraction, UV-visible diffuse reflectance and photoluminescence spectroscopy. The photoca...

In this study, fast growing ascomycete fungus Trichoderma atroviride F03 was explored to biodegrade bisazo dye, Reactive Black 5 (RB5). The maximum RB5 biodegradation (91.1%) was achieved in the culture medium supplemented with an appropriate carbon source (glucose, 20 g l�1), and nitrogen source (yeast extract, 20 g l�1) at pH 5 and 27 C. The lacc...

The exploration of functional group interactions and electro-generated species stabilization on chemically modified electrodes for efficient electro-analytical application is a continuing research area in electrochemistry. In addition, the electrochemical behaviours of the intermediate species, which are generated from the aromatic organic redox me...

In this study, fast growing ascomycete fungus Trichoderma atroviride F03 was explored to biodegrade bis-azo dye, Reactive Black 5 (RB5). The maximum RB5 biodegradation (91.1%) was achieved in the culture medium supplemented with an appropriate carbon source (glucose, 20 g l-1), and nitrogen source (yeast extract, 20 g l-1) at pH 5 and 27 °C. The la...

This study investigated the preparation of reusable adsorbent from phyto-waste Terminalia catappa fruit shell by acid-thermal modification and utilization for the removal of diclofenac from the aqueous system. The structural characteristic features of the modified T. catalpa fruit shell (MTCFS) was analysed using Scanning Electron Microscopy, Fouri...

Para-arsanilic acid (p-ASA) has been widely used in the poultry industry to promote growth and prevent dysentery. It is excreted unchanged in the manure and released into non-target sites causing organoarsenic pollution risk to the environment and living system. Therefore, simple and effective analytical strategies are demanded for determining the...

Curcuminoids are nutraceutical compounds used worldwide for medicine as well as in food preparations. In the present study curcuminoids extraction was optimized using response surface methodology. The antimicrobial properties of curcuminoids and bromine modified curcuminoids (BMC) were determined against food spoilage flora and foodborne pathogens....

Armillariasp. F022, a basidiomycetes fungus isolated from a recreational forest in Johor, Malaysia, was tested for the biodegradation ability of an azo dye, Acid Red 27 (AR27). Varying carbon and nitrogen sources, agitation, and inoculum concentration on AR27 dye degradation by Armillariasp. F022 in solution were investigated to find out their effe...

This study describes the optimized laccase mediated diclofenac degradation using Response surface methodology (RSM) and cytotoxicity testing on mouse fibroblast 3T3-L1 preadipocytes. Three factors (laccase, syringaldehyde, reaction time) were used to optimize diclofenac degradation. The optimum level of laccase, syringaldehyde and reaction time was...

Laccase from the white‐rot fungus Pleurotus florida, produced under solid‐state fermentation conditions, was used for the decolorization of reactive dye Remazol Brilliant Blue R (RBBR). RBBR was decolorized up to 46% by P. florida laccase alone in 10 min. In the presence of N‐hydroxybenzotriazole (HBT), the rate of decolorization was enhanced 1.56‐...

Laccase was produced from Pleurotus florida under solid-state fermentation, and the production was optimized by response surface methodology. The predicted maximum laccase production of 8.81 U g(-1) was obtained by the optimum concentration of malt extract, banana peel, wheat bran and CuSO4, which was found to be 0.69 g, 10.61 g, 10.68 g and 77.15...

Laccase from the white-rot fungus Pleurotus florida, produced under solid-state fermentation conditions, was used for the decolorization of reactive dye Remazol Brilliant Blue R (RBBR). RBBR was decolorized up to 46% by P. florida laccase alone in 10 min. In the presence of N-hydroxybenzotriazole (HBT), the rate of decolorization was enhanced 1.56-...

The potential of banana peel as a solid-substrate for the production of extracellular laccase by the whiterot fungus Pleurotus florida NCIM 1243 was studied in this paper. Response surface methodology (RSM) was applied to optimize the decolorization of the malachite green (MG) dye by partially purified laccase obtained from P. florida. We observed...

The rapid removal of chromium ions from aqueous solutions using prawn shell activated carbon (PSAC) was established in the present study. Response surface methodology (RSM) was used to optimize the process variables for the maximum chromium removal. The optimization result shows that 0.04 g of PSAC was sufficient to remove 100.6 mg L−1 of chromium...