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Utilization of TiO_(2)/gC_(3)N_(4)nanoadditive to boost oxidative properties of vegetable oil for tribological application

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Friction 2021年第2期9卷 273-287页

作者： Nisha RANJAN Rashmi C.SHENDE muthusamy kamaraj Sundara RAMAPRABHU Department of Physics Indian Institute of Technology MadrasChennai 600036India Department of Metallurgical and Materials Engineering Indian Institute of Technology MadrasChennai 600036India

The emergence of vegetable oil as a promising alternative lubricant in the tribological application space has fueled research for making these oils as useful as mineral *** modification of vegetable oil by the addition of TiO_(2)/gC_(3)N_(4)nanocomposite(as a nanoadditive)was studied *** dispersion of the nanoadditive in the vegetable oil showed good oil dispersion stability without the addition of any *** tribological studies were conducted in a four-ball tester using ASTM standard *** addition,the effect of temperature on tribological performance was also studied to understand the oxidation behavior of vegetable *** results showed a significant improvement in friction and wear properties of the optimized *** mechanism behind the improvement in friction and wear properties is annotated in this paper.

关键词： TiO_(2)/gC_(3)N_(4)nanoadditive vegetable oil oxidation

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Bioactive potential of some economically important marine gastropods along the Gulf of Mannar region,southeast coast of India

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Journal of Coastal Life Medicine 2016年第8期4卷 608-611页

作者： Jayanthi Govindarajalu muthusamy Anand Gurusamy Chelladurai Arumugam Kumaraguru Department of Marine and Coastal Studies Madurai Kamaraj UniversityMaduraiTamil NaduIndia Department of Zoology Kamaraj CollegeTuticorinTamil NaduIndia

Objective:To analyse the economically important gastropods for prospective antimicrobial,antioxidant and cytotoxic activities from the Gulf of Mannar region,southeast coast of ***:The bioactive potential of some gastropods *** spirata(***),Phalium glaucum,Tonna dolium,Hemifusus pugilinus,Xancus pyrum,Chicoreus ramosus(***),Harpa articularis,Ficus ficus and Babylonia zeylanica were *** activity was carried out against 8 human pathogenic bacteria and 3 fungal strains by well diffusion *** and cytotoxic activities were analyzed by standard ***:In antibacterial and antifungal activities,methanolic extract of *** significantly showed the highest inhibition zone against Aeromonas hydrophila and Fusarium spp.(P>0.05).In the total antioxidant activity,the maximum activity was observed in ***(510μg/mg)and in the 1.1-diphenyl-2-picrylhydrazyl scavenging activity,*** showed the highest percentage of inhibition(76.7%).In the case of cytotoxicity *** shrimp lethality tests the methanolic extract of *** showed the lowest percentage of mortality and the LC50 values were found to be 523.9μg/***:The results revealed that all the gastropods in the present study possessed antimicrobial,antioxidant and cytotoxic ***,species like *** and *** exhibited potent activity and can be used for further clinical studies.

关键词： Marine gastropods Antimicrobial Antioxidant Cytotoxicity Gulf of Mannar Southeast coast of India

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Comparative studies on biochemical analysis of some economically important marine gastropods along Gulf of Mannar region,southeast coast of India

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Journal of Coastal Life Medicine 2016年第6期4卷 444-447页

作者： Jayanthi Govindarajalu Anand muthusamy Chelladurai Gurusamy Karthigarani Mani Kumaraguru Arumugam Department of Marine and Coastal Studies Madurai Kamaraj UniversityMaduraiTamil NaduIndia Departmentof Zoology Kamaraj CollegeTuticorinTamil NaduIndia Department of Zoology Yadhava CollegeMaduraiTamil NaduIndia

Objective:To signify the economic importance of molluscan-gastropod food by estimating its biochemical ***:Samples were collected from the trawl net bycatch at the fish landing center of Mandapam coast of the Gulf of Mannar *** total protein,carbohydrate,lipid,ash and moisture contents were estimated from nine gastropods *** glaucum,Tonna dolium,Hemifusus pugilinus,Babylonia spirata,Xancus pyrum,Chicoreus ramosus,Harpa articularis,Ficus ficus and Babylonia ***:The percentages of protein(41.2%),carbohydrate(17.5%)and lipid(6.6%)contents were found highest in Babylonia spirata,followed by other *** maximum ash content was observed in Chicoreus ramosus(1.21%)and the maximum moisture content was observed in Phalium glaucum(83.71%).Conclusions:The results show that all the nine gastropods contain good sources of protein and other biochemical constituents and can be used for edible purposes to prevent starvation.

关键词： Biochemical composition Nine gastropods Bycatch Trawl net Gulf of Mannar

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