Rajasekar Aruliah
@tvu.edu.in
Assistant Professor, Department of Biotechnology
Thiruvalluvar University
EDUCATION
Postdoctoral Research Fellowship (PDF): National University of Singapore (NUS), Kent Ridge, Singapore (March 2013).
Ph.D. (Microbiology), Bharathidasan University & Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi (May 2008).
M.Sc. (Microbiology), Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India (April 2000).
B.Sc. (Biochemistry), Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India (April 1998).
RESEARCH INTERESTS
Microbiologically Influenced Corrosion of aqueous/non-aqueous environments
Biodegradation and Bioremediation
Metagenomics
Bioleaching of precious metals from minerals and waste materials
Bio-Electro kinetics for waste management
Microbial fuel cell
Airborne bacteria (Aerobiology)
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Azhagarsamy Satheeshkumar, Ramanathan Duraimurugan, Punniyakotti Parthipan, Kuppusamy Sathishkumar, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Rajaram Rajamohan, Aruliah Rajasekar, and Tabarak Malik
American Chemical Society (ACS)
A novel integrated electrochemical oxidation (EO) and bacterial degradation (BD) technique was employed for the remediation of the chloropyridinyl and chlorothiazolyl classes of neonicotinoid (NEO) insecticides in the environment. Imidacloprid (IM), clothianidin (CL), acetamiprid (AC), and thiamethoxam (TH) were chosen as the target NEOs. Pseudomonas oleovorans SA2, identified through 16S rRNA gene analysis, exhibited the potential for BD. In EO, for the selected NEOs, the total percentage of chemical oxygen demand (COD) was noted in a range of 58–69%, respectively. Subsequently, in the biodegradation of EO-treated NEOs (BEO) phase, a higher percentage (80%) of total organic carbon removal was achieved. The optimum concentration of NEOs was found to be 200 ppm (62%) for EO, while for BEO, the COD efficiency was increased up to 79%. Fourier-transform infrared spectroscopy confirms that the heterocyclic group and aromatic ring were degraded in the EO and further utilized by SA2. Gas chromatography–mass spectroscopy indicated up to 96% degradation of IM and other NEOs in BD (BEO) compared to that of EO (73%). New intermediate molecules such as silanediamine, 1,1-dimethyl-n,n’-diphenyl produced during the EO process served as carbon sources for bacterial growth and further mineralized. As a result, BEO enhanced the removal of NEOs with a higher efficiency of COD and a lower consumption of energy. The removal efficiency of the NEOs by the integrated approach was achieved in the order of AC > CL > IM > TH. This synergistic EO and BD approach holds promise for the efficient detoxification of NEOs from polluted environments.
M. Sasikala, M. J. Umapathy, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Aruliah Rajasekar, Paulraj Arunkumar, and Jayaraman Narenkumar
Wiley
AbstractThe research aimed to prepare eco‐friendly bio‐nanocomposite films utilizing gelatin/starch (GS), nano‐ZnO, and Darbha grass extract via the solution casting method. Then, it was examined the mechanical and physical properties of different durations of sunlight exposure on the prepared films. The results indicated that up to 12 h of sunlight exposure led to increased film thickness, mechanical strength, and apparent density. Tensile strength increased from 4.8 to 34.8 MPa, and the average crystalline size of the nanoparticles was found to be 54.35 nm using scanning electron microscope. Compared with GS films, these bio‐nanocomposite films exhibited lower moisture content, oil permeability, and enhanced water barrier properties. Moreover, they displayed significant UV absorption and profound antimicrobial activity against both gram‐positive and gram‐negative food borne pathogenic bacteria. The nano‐ZnO/Darbha grass extract‐based bio‐nanocomposite films exhibited showed improved characteristics and could be applied in the field of food packaging application.
Perumal Dhandapani, Venkatesan Srinivasan, Punniyakotti Parthipan, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Jayaraman Narenkumar, Rajaram Rajamohan, Varathan Ezhilselvi, and Aruliah Rajasekar
Springer Science and Business Media LLC
Balakrishnan Muthukumar, Azhagarsamy Satheeshkumar, Punniyakotti Parthipan, Bibek Laishram, Ramanathan Duraimurugan, Sandhanasamy Devanesan, Mohamad S. AlSalhi, Rajaram Rajamohan, and Aruliah Rajasekar
Elsevier BV
Paulraj Arunkumar, Sampath Gayathri, Aruliah Rajasekar, Shanmugam Senthil Kumar, Sathish Kumar Kamaraj, and Jong Hun Han
Elsevier BV
Punniyakotti Elumalai, Arunagiri Santhosh Kumar, Perumal Dhandapani, Jinjie Cui, Xueke Gao, A. Arul Prakash, Rajaram Rajamohan, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Aruliah Rajasekar,et al.
Elsevier BV
Seenivasan Kokilaramani, Alagersamy Satheeshkumar, M. S. Nandini, Jayaraman Narenkumar, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Prabhu Manickam Natarajan, Rajaram Rajamohan, Aruliah Rajasekar, and Tabarak Malik
Frontiers Media SA
BackgroundCooling towers are specialized heat exchanger devices in which air and water interact closely to cool the water's temperature. However, the cooling water contains organic nutrients that can cause microbial corrosion (MC) on the metal surfaces of the tower. This research explores the combined wastewater treatment approach using electrochemical-oxidation (EO), photo-oxidation (PO), and photoelectrochemical oxidation (PEO) to contain pollutants and prevent MC.MethodsThe study employed electro-oxidation, a process involving direct current (DC) power supply, to degrade wastewater. MC studies were conducted using weight loss assessments, scanning electron microscopy (SEM), and x-ray diffraction (XRD).ResultsAfter wastewater is subjected to electro-oxidation for 4 h, a notable decrease in pollutants was observed, with degradation efficiencies of 71, 75, and 96%, respectively. In the wastewater treated by PEO, microbial growth is restricted as the chemical oxygen demand decreases.DiscussionA metagenomics study revealed that bacteria present in the cooling tower water consists of 12% of Nitrospira genus and 22% of Fusobacterium genus. Conclusively, PEO serves as an effective method for treating wastewater, inhibiting microbial growth, degrading pollutants, and protecting metal from biocorrosion.
Punniyakotti Elumalai, Punniyakotti Parthipan, Xueke Gao, Jinjie Cui, Arunagiri Santhosh Kumar, Perumal Dhandapani, Aruliah Rajasekar, Hemen Sarma, Nadana Raja Vadivu Ganapathy, Jayaraman Theerthagiri,et al.
Springer Science and Business Media LLC
Selvakumar Santhosh, Subramani Abilaji, Mohamad S AlSalhi, Sandhanasamy Devanesan, Jayaraman Narenkumar, Rajaram Rajamohan, and Aruliah Rajasekar
Elsevier BV
Ashwini Ravi, Ramkishore Krishnan, Mounesh Ravuri, Selvakumar Santhosh, Mohamad S AlSalhi, Sandhanasamy Devanesan, Aruliah Selvarani, Aruliah Rajasekar, Rajaram Rajamohan, and Jayaraman Narenkumar
Elsevier BV
Velmurugan Sekar, Jayaraman Narenkumar, Aruliah Rajasekar, Amutha Santhanam, Palanivel Velmurugan, Mohammad Mansoob Khan, and Nagaraj Basavegowda
Springer Science and Business Media LLC
Subramani Abilaji, Jayaraman Narenkumar, Bhaskar Das, Suresh S, Rajagopal Rajakrishnan, Kuppusamy Sathishkumar, Rajaram Rajamohan, and Aruliah Rajasekar
Elsevier BV
Durairaj Thirumurugan, Dhayalakrishnan Kokila, Thirupathi Balaji, Rajaram Rajamohan, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Aruliah Rajasekar, and Punniyakotti Parthipan
Elsevier BV
Sekar Harikrishnan, Shanmugam Sudarshan, Kandasamy Sivasubramani, M. S. Nandini, Jayaraman Narenkumar, Vasudevan Ramachandran, Bader O. Almutairi, Paulraj Arunkumar, Aruliah Rajasekar, and Singaram Jayalakshmi
Springer Science and Business Media LLC
AbstractThe widespread use of synthetic pesticides has resulted in a number of issues, including a rise in insecticide-resistant organisms, environmental degradation, and a hazard to human health. As a result, new microbial derived insecticides that are safe for human health and the environment are urgently needed. In this study, rhamnolipid biosurfactants produced from Enterobacter cloacae SJ2 was used to evaluate the toxicity towards mosquito larvae (Culex quinquefasciatus) and termites (Odontotermes obesus). Results showed dose dependent mortality rate was observed between the treatments. The 48 h LC50 (median lethal concentration) values of the biosurfactant were determined for termite and mosquito larvae following the non-linear regression curve fit method. Results showed larvicidal activity and anti-termite activity of biosurfactants with 48 h LC50 value (95% confidence interval) of 26.49 mg/L (25.40 to 27.57) and 33.43 mg/L (31.09 to 35.68), respectively. According to a histopathological investigation, the biosurfactant treatment caused substantial tissue damage in cellular organelles of larvae and termites. The findings of this study suggest that the microbial biosurfactant produced by E. cloacae SJ2 is an excellent and potentially effective agent for controlling Cx. quinquefasciatus and O. obesus.
Subramani Abilaji, Kuppusamy Sathishkumar, Jayaraman Narenkumar, Mohamad S. Alsalhi, Sandhanasamy Devanesan, Punniyakotti Parthipan, Balakrishnan Muthuraj, and Aruliah Rajasekar
Elsevier BV
Mohamad S AlSalhi, Sandhanasamy Devanesan, Aruliah Rajasekar, and Seenivasan Kokilaramani
Elsevier BV
S. Sudarshan, S. Harikrishnan, Govindarajan RathiBhuvaneswari, V. Alamelu, S. Aanand, A. Rajasekar and M. Govarthanan
Environmental contamination brought on by the discharge of wastewater from textile industries is a growing concern on a global scale. Textile industries produce a huge quantity of effluents containing a myriad of chemicals, mostly dyes. The discharge of such effluents into the aquatic environment results in pollution that adversely affects aquatic organisms. Synthetic dyes are complex aromatic chemical structures with carcinogenic and mutagenic properties in addition to high biological oxygen demand (BOD) and chemical oxygen demand (COD). This complex aromatic structure resists degradation by conventional techniques. The bioremediation approach is the biological clean-up of toxic contaminants from industrial effluents. Biological treatment methods produce less or no sludge and are cost-effective, efficient, and eco-friendly. Microorganisms, mostly microalgae and bacteria, and, in some instances, fungi, yeast, and enzymes decolorize textile dye compounds into simple, non-toxic chemical compounds. Following a thorough review of the literature, we are persuaded that microalgae and bacteria might be one of the potential decolorizing agents substituting for most other biological organisms in wastewater treatment. This article presents extensive literature information on textile dyes, their classification, the toxicity of dyes, and the bioremediation of toxic textile industry effluent utilizing microalgae and bacteria. Additionally, it combines data on factors influencing textile dye bioremediation, and a few suggestions for future research are proposed.
Hafiz Zeshan Wadood, Aruliah Rajasekar, Ameeq Farooq, and Kashif Mairaj Deen
Walter de Gruyter GmbH
Abstract In this research work, the corrosion tendency of stainless steel 304 caused by the Pseudomonas aeruginosa ZK and Bacillus subtilis S1X bacterial strains is investigated. The topographical features of the biofilms achieved after 14 days of incubation at 37 °C were examined by means of scanning electron microscopy. Fourier transform infrared spectroscopic analysis of the extracellular polymeric substance was carried out to estimate the chemical composition of the biofilm. Electrochemical impedance spectroscopy and Tafel polarization test methods were applied to understand the in-situ corrosion tendency of the stainless steel 304 in the presence of P. aeruginosa ZK and B. subtilis S1X strains. Compared to the biofilm produced by the P. aeruginosa ZK, the extracellular polymeric substance in the B. subtilis S1X containing bacteria was found to be porous and non-uniform. The improved hydrophobicity and uniformity of the P. aeruginosa ZK containing biofilm retarded the corrosion of the underlying stainless steel 304 sample. Appreciably large resistance of the P. aeruginosa ZK biofilm (∼6.04 kΩ-cm2) and hindered charge transport (11.12 kΩ-cm2) were evident from the electrochemical impedance spectroscopy analysis. In support of these results, a large cathodic Tafel slope (0.2 V/decade) and low corrosion rate (1.69 μA cm−2) were corroborated by the inhibitive properties of the P. aeruginosa ZK containing biofilm. However, the localized corrosion of the substrate in the presence of B. subtilis S1X bacteria was caused by the porosity and non-homogeneity of the extracellular polymeric substance layer. The small charge transfer resistance, high dissolution rate and pitting of the surface under B. subtilis S1X biofilm were comparable to the corrosion properties of stainless steel 304 in a controlled medium. These results highlighted the poor corrosion inhibitive properties of the B. subtilis S1X biofilm compared to the P. aeruginosa ZK bacterial strain.
Nachimuthu Krishnan Sujeeth, Ramasamy Aravinth, Murugesan Thandeeswaran, Jayaraman Angayarkanni, Aruliah Rajasekar, R. Mythili, and Murugesan Gnanadesigan
Springer Science and Business Media LLC
Punniyakotti Parthipan, Liang Cheng, Perumal Dhandapani, and Aruliah Rajasekar
Elsevier BV
Balakrishnan Muthukumar, M. S. Nandini, Punniyakotti Elumalai, Muthuraj Balakrishnan, Azhargarsamy Satheeshkumar, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Punniyakotti Parthipan, Aruliah Rajasekar, and Tabarak Malik
Frontiers Media SA
IntroductionOintments are generally used as a therapeutic agent for topical medication or transdermal drug delivery, such as wound healing and skin lesions.MethodsIn this study, Tridax procumbens plant extract (0.7 g/mL) was used to prepare herbal-infused oil as the oil phase and gelatin-stabilized silver nanoparticle (G-AgNPs) (0.3 g/mL) as the aqueous phase. To blend the oil and aqueous phases, rhamnolipid biosurfactant with a critical micelle concentration of 55 mg/L from strain Pseudomonas aeruginosa PP4 has been used for herb ointment preparation. The average size of the synthesized G-AgNPs was observed between 10–30 nm and confirmed as spherical-shaped particles by TEM analysis. Subsequently, GC–MS and FTIR characterization are used to confirm herb ointment’s chemical and functional characteristics.ResultsBased on the antibacterial studies, the highest microbial growth inhibition was observed for herb ointment, about 19.5 mm for the pathogen Staphylococcus aureus at the concentration of 100 μg/mL, whereas 15.5 mm was obtained for Escherichia coli, respectively. In addition, the minimum inhibitory concentration (MIC) assay showed negligible bacterial growth at 100 μg/mL for S. aureus and E. coli, respectively. Moreover, the cell viability assay for herb ointment exhibited low cytotoxic activity at higher concentrations (100 μg/mL) in Vero cell lines. In this study, wound scratch assay showed a significant cell migration rate (90 ± 2%) in 3 days of incubation than the control (62 ± 2%).DiscussionAs a result, the biosurfactant-based nano-topical herb ointment revealed a low cytotoxic and higher cell migration capacity. Altogether, these findings highlighted the utility of this herb ointment in therapeutic applications such as wound healing.
Muthukumar Suganya, A. Usha Raja Nanthini, Aruliah Rajasekar, M. S. Nandini, G. Lavanya, Bader O. Almutairi, Paulraj Arunkumar, and Jayaraman Narenkumar
Springer Science and Business Media LLC
Balakrishnan Muthukumar, Saravanan Surya, Krithiga Sivakumar, Mohamad S. AlSalhi, Tentu Nageswara Rao, Sandhanasamy Devanesan, Paulraj Arunkumar, and Aruliah Rajasekar
Elsevier BV
Ashwini Ravi, Mounesh Ravuri, Ramkishore Krishnan, Jayaraman Narenkumar, Kasi Anu, Mohamad S. Alsalhi, Sandhanasamy Devanesan, Seralathan Kamala-Kannan, and Aruliah Rajasekar
Elsevier BV
Perumal Dhandapani, Murali Santhoshkumar, Jayaraman Narenkumar, Mohamad S. AlSalhi, Paulraj Arun Kumar, Sandhanasamy Devanesan, Seenivasan Kokilaramani, and Aruliah Rajasekar
Springer Science and Business Media LLC