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Unformatted text preview: ials. Fibrous plant materials containing furfural are condensed with tannins in the presence of for maldehyde to give phenolformaldehyde type resins. Such fibrous materials like palm fruit fibre, aricanut fibre and coconut fibre are used in our laboratories. Similarly, phenolic constituents like tannins, cashew net shell liquid are obtained from such sources like Anacardium occidentale. The condensation of hydrolysates of these fibrous materials with polyphenolic rich extracts yielded Bakelite type resins which when suspended in oils such as dehydrated castor oils, tung oil yielded varnishes after the ad dition of dryers and anti skinning agents. These varnishes had optimum drying time, good gloss, excellent scratch resistance and greater stability in acid and water medium. Similarly from plant sources green corrosion inhibitors are developed. These inhibitors are not only eco-friendly but also non-toxic. From our laboratories, the anticorrosion effects of Rauvolfia sarpentina, Solanum nigrum, Solanum tuberosum, Datura metel, Datura starmonium, Calotropis procera and Strychnos nux-vomica have been reported. Further, the chemical principles responsible for the anticorrosion effect are also isolated and studied. This has brought to light the corrosion inhibition potential of such heterocyclic compounds like atropine, brucine and solasodine. Thus, these initiatives replace toxic components which otherwise may be used in the manufacture of the industrially useful materials for preparation of surface coatings formulations/corrosion inhibitors. 56 3rd ICYC 2010 Universiti Sains Malaysia KN-17 23rd-25th June 2010 ENZYME AND DNA BASED BIOSENSORS FROM ACRYLIC MICRO/NANOSPHERES Lee Yook Heng, Alizar Ulianas, Yew Pei Ling and Musa Ahmad School of Chemical Sciences & Food Technology, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor E-mail: firstname.lastname@example.org This paper is aimed to demonstrate how nano-materials can be applied to bioanalysis via the fabrication of biosensing devices. The advantages of using nano -materials in biosensor applications, especially as a membrane material for the immobilization of biomolecules i s a recent but major development in the field of biosensor technology and innovation. N...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.
- Spring '11