Kuppusamy ELUMALAI
@gacnandanam.com
Unit of Entomotoxicity, Department of Advanced Zoology & Biotechnology
Government Arts College (Autonomous), Nandanam,
Chennai, Tamilnadu 600 035, India
Scopus Publications
Scopus Publications
Dinakaran Vasumathi, Swaminathan Senguttuvan, Jeganathan Pandiyan, Kuppusamy Elumalai, Marimuthu Govindarajan, Karuvi Sivalingam Subasri, and Kaliyamoorthy Krishnappa
Elsevier BV
Subramaniam Punitha, Rajamanickkam Krishnamurthy, Kuppusamy Elumalai, Shahid Mahboob, Khalid A. Al-Ghanim, Zubair Ahmed, Ahmed Mustafa, and Marimuthu Govindarajan
Elsevier BV
Kumaran Subramanian, Mani Mahendrakumar, Kuppusamy Elumalai, S.R. Pugazhvendan, Panangal Mani, and K. Balakrishnan
Elsevier
Mathalaimuthu Baranitharan, Mahmoud Kandeel, Govindan Shanmugavel, Kumaravel Kaliyaperumal, Kumaran Subramanian, Kuppusamy Elumalai, Jayapal Gokulakrishnan, Hari Irrusappan, Senthil Rethinam, and S. Velmurugan
Hindawi Limited
Mosquitoes are the most critical group of insects in the context of public health, since they transmit key parasites and pathogens, causing millions of deaths annually. Aedes albopictus is an important invasive mosquito vector of dengue fever across urban and semiurban areas of India. In this study, we biofabricated silver nanoparticles (AgNPs) using the Fimbristylis miliacea aqueous leaf extract (Fm-ALE) as reducing and stabilizing agent. The synthesis of Fm-AgNPs was confirmed by the excitation of surface plasmon resonance and orange-brown color using ultraviolet-visible (UV-vis) spectrophotometry. High-resolution scanning electron microscopic (HR-SEM) and transmission electron microscopic (TEM) showed the clustered (size 0.5 μm) and quasi-spherical structures of Fm-AgNPs. The formation of AgNPs has been characterized by X-ray diffraction (XRD) spectroscopy. Fourier transform infrared (FTIR) spectroscopy investigated the identity of secondary metabolites, which may act as Fm-AgNP capping agents. These results propose that AgNPs synthesized provided from those Fm-ALE have the high sources to be improved into the most suitable materials useful for protecting and killing the invasive mosquito vector, Ae. albopictus populations. The acute toxicity of Fm-ALE synthesized Ag NPs, and a combined treatment testing blends of mosquito vector was evaluated against I, II, III, and IV instar larva’s (ILs) of Ae. albopictus. The LC50 values of Fm-ALE (174.39 ppm I-ILs, 214.40 ppm II-ILs, 232.38 ppm III-ILs, and 251.62 ppm IV-ILs) and Fm-AgNPs synthesized were 23.78 ppm I-ILs; 27.88 ppm II-ILs; 31.47 ppm III-ILs; 36.68 ppm IV-ILs, respectively. Likewise, Fm-AgNP synthesis was more toxic than ALE in the invasive mosquito vector and recorded from UV-vis spectrum, FTIR, TEM, and XRD analysis. These results propose that AgNPs synthesized provided from those Fm-ALE have the high sources to be improved into the most suitable materials useful for protecting and killing the invasive mosquito vector, Ae. albopictus populations.
Venkattan Esan, Chakkaravarthy Elanchezhiyan, Shahid Mahboob, Khalid A. Al-Ghanim, Fahad Al-Misned, Zubair Ahmed, Kuppusamy Elumalai, Kaliyamoorthy Krishnappa, and Govindarajan Marimuthu
Informa UK Limited
Abstract In this study, we synthesized and characterized (UV–vis, XRD, FTIR, SEM, TEM, and AFM) Trewia nudiflora-assisted silver nanoparticles (Tn-AgNPs). The toxicity of T. nudiflora leaf aqueous extract and Tn-AgNPs was tested against Anopheles stephensi, Aedes aegypti, and Culex quinquefasciatus larvae and its LC50 values were 121.82/16.69, 130.51/18.11, and 142.38/19.53 μg mL–1, respectively. Moreover, the biotoxicity was analyzed against the aquatic non-target fauna Anisops bouvieri, Diplonychus indicus, and Gambusia affinis. The LC50 values of non-target fauna were 1064.66–26,537.05 μg mL–1. Thus, the Tn-AgNPs significantly controlled the mosquito larvae with less toxic effects on aquatic non-target fauna.
Mathalaimuthu Baranitharan, Saud Alarifi, Saad Alkahtani, Daoud Ali, Kuppusamy Elumalai, Jeganathan Pandiyan, Kaliyamoorthy Krishnappa, Mohan Rajeswary, and Marimuthu Govindarajan
Elsevier BV
Abstract Globally, the farmers are struggling with polyphagous insect pest, and it is the number one enemy of agri-products, which made plenty of economic deterioration. Spodoptera litura and Helicoverpa armigera are the agronomically important polyphagous pests. Most of the farmers are predominately dependent on synthetic chemical insecticides (SCIs) for battle against polyphagous pets. As a result, the broad spectrum usage of SCIs led a lot of detrimental outcomes only inconsequently the researchers search the former-friendly phyto-pesticidal approach. In the present investigation, leaf ethanol extract (LEE) and silver nanoparticles (AgNPs) of A. catechu (Ac) were subjected to various spectral (TLC, CC, UV, FTIR, XRD and SEM) analyses. Larval and pupal toxicity of A. catechu Ac-LEE and Ac-AgNPs were tested against selected polyphagous insect pests. The significant larval and pupal toxicity were experimentally proven, and the highest toxicity noticed in AgNPs than Ac-LEE. The larval and pupal toxicity of Ac-AgNPs tested against S. litura and H. armigera LC50/LC90 values were 71.04/ 74.78, 85.33/ 88.91 µg/mL and 92.57/ 96.21 and 124.43/ 129.95 µg/mL respectively. Ac-AgNPs could be potential phyto-pesticidal effectiveness against selected polyphagous insect pests. In globally, it is significantly sufficient ratification giving towards the prevention of many unauthorized SCPs.
Mohamad S. AlSalhi, Kuppusamy Elumalai, Sandhanasamy Devanesan, Marimuthu Govindarajan, Kaliyamoorthy Krishnappa, and Filippo Maggi
Elsevier BV
Jeganathan Pandiyan, Rajendran Jagadheesan, Ganesan Karthikeyan, Shahid Mahboob, Khalid A. Al-Ghanim, Fahad Al-Misned, Zubair Ahmed, Kaliyamoorthy Krishnappa, Kuppusamy Elumalai, and Marimuthu Govindarajan
Springer Science and Business Media LLC
AbstractThe study is intended to deliver the incidence of heavy metals in the feathers of shorebirds from two important Central Asian Flyway (CAF) migratory shorebirds wintering sites such as the Point Calimere Wildlife Sanctuary (PWLS) and Pichavaram Mangrove Forest (PMF), India. Feathers of fifteen species of shorebirds and seven different metals viz., Cu, Cr, Co, Pb, Hg, Ni and Zn were analyzed. Zn was highest in Dunlin, Little-ringed Plover, Marsh Sandpiper, and Common sandpiper, Ni showed highest in Little ringed plover, and Common sandpiper, Co, Cr, and Cu were maximum in Little stint, Marsh sandpiper, and Dunlin, respectively. The Hg was higher in Black-winged stilt, Common redshank, Curlew Sandpiper, Eurasian curlew, Lesser Sand-plover, Temminck’s stint, Kentish plover, Spotted redshank, and Wood sandpiper, the Pb found highest in Kentish plover, Painted stork, Spotted redshank, Wood sandpiper, Eurasian Curlew, and Lesser sand-plover. The concentration of metals showed significant variations among the species of shorebirds studied (P < 0.001). The mercury negatively correlated with the other metals than the other six metals studied in both the wetlands. The order of metal concentration in the feathers of shorebirds was Zn > Ni > Co > Cr > Cu > Pb > Hg. Nevertheless, the current study revealed that the level of metals in the shorebirds is alarming; since the PWLS and PMF are located along the CAF routes, it needs intensive studies on various pollutions to manage both the resident as well as migratory shorebirds.
Kuppusamy Elumalai, Shahid Mahboob, Khalid A. Al-Ghanim, Fahad Al-Misned, Jeganathan Pandiyan, Putta Muralidharan Kousik Baabu, Kaliyamoorthy Krishnappa, and Marimuthu Govindarajan
Elsevier BV
Jeganathan Pandiyan, Shahid Mahboob, Rajendran Jagadheesan, Kuppusamy Elumalai, Kaliyamoorthy Krishnappa, Fahad Al-Misned, Zahid Ali Kaimkhani, and Marimuthu Govindarajan
Elsevier BV
Kaliyamoorthy Krishnappa, Mathalaimuthu Baranitharan, Kuppusamy Elumalai, and Jeganathan Pandiyan
Springer Science and Business Media LLC
Mathalaimuthu Baranitharan, Kaliyamoorthy Krishnappa, Kuppusamy Elumalai, Jeganathan Pandiyan, Jayabal Gokulakrishnan, Kalimuthu Kovendan, and Vairakannu Tamizhazhagan
Elsevier BV
S. M. Roopan, R. S. Mathew, S. S. Mahesh, D. Titus, K. Aggarwal, N. Bhatia, K. I. Damodharan, K. Elumalai, and J. J. Samuel
Springer Science and Business Media LLC
Selvaraj Mohana Roopan, Harsh Sharma, Gaurav Kumar, Abhishek Mishra, Venu Agarwal, Harsshit Agrawaal, Ganesh Elango, Kasinathan Irukatla Damodharan, and Kuppuswamy Elumalai
Springer Science and Business Media LLC
K. Elumalai, S. Velmurugan, S. Ravi, V. Kathiravan, and S. Ashokkumar
Elsevier BV
K. Elumalai, S. Velmurugan, S. Ravi, V. Kathiravan, and S. Ashokkumar
Elsevier BV
Ganesh Elango, Selvaraj Mohana Roopan, Naif Abdullah Al-Dhabi, Mariadhas Valan Arasu, Kasinathan Irukatla Damodharan, and Kuppuswamy Elumalai
Informa UK Limited
Abstract In recent decades, several scientists focused their process towards nanoparticles synthesis by using various sustainable approaches. Cocos nucifera (C. nucifera) was one of the versatile trees in tropical regions which also can act as a thrust quencher in all over the world. Cocos nucifera coir was one of the waste by-products in all coconut-refining industries and with the help C. nucifera coir, Palladium nanoparticles (Pd NPs) were synthesized. Green-synthesized spherical-shape Pd NPs were over layered by secondary metabolites from C. nucifera coir extract and with an average particle size of 62 ± 2 nm, which were confirmed by morphological analysis. Eco-friendly mediated Pd NPs were further subjected to several biological applications like larvicidal against Aedes aegypti (A. aegypti) and anti-feedent, ovicidal, and oviposition deterrent against agricultural pest Callasobruchus maculates (C. maculates) and compared with C. nuciferacoir methanolic extract, which results in LC50 value of 288.88 ppm and LC90 value of 483.06 ppm using LSD-Tukey’s test against dengue vector (A. aegypti). Cocos nucifera coir methanolic extract shows significant output while compared with Pd NPs towards anti-feedent assays; ovicidal activity and oviposition deterrent were discussed here.
Ganesh Elango, Selvaraj Mohana Roopan, Naif Abdullah Al-Dhabi, Mariadhas Valan Arasu, Kasinathan Irukatla Dhamodaran, and Kuppusamy Elumalai
Elsevier BV
Ganesh Elango, Selvaraj Mohana Roopan, Kasinathan Irukatla Dhamodaran, Kuppusamy Elumalai, Naif Abdullah Al-Dhabi, and Mariadhas Valan Arasu
Elsevier BV
K. Elumalai, S. Velmurugan, S. Ravi, V. Kathiravan, and G. Adaikala Raj
Elsevier BV
K. Elumalai, S. Velmurugan, S. Ravi, V. Kathiravan, and S. Ashokkumar
Elsevier BV
V. Kathiravan, S. Ravi, S. Ashokkumar, S. Velmurugan, K. Elumalai, and Chandra Prasad Khatiwada
Elsevier BV