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035 _a.b11981507
099 9 _aAIT Thesis no.ME-05-04
100 1 _aSugunan, Abhilash
245 1 0 _aFormation and potential uses of glutamate-stabilized gold nanoparticles
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2005
300 _a47 p. :
_bill.
490 1 _aThesis ;
_vno. ME-05-04
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies
502 _aThesis (M.Eng.) - Asian Institute of Technology, 2005
520 _aFormation of stable colloids of gold nanoparticles in aqueous systems has been studied leading to the development of a phenomenological explanation for the process. To this end, a size selective synthesis of stable gold nanoparticles dispersed in water has been reported with a novel reducing agent, monosodium glutamate. The effect of concentration of cations in the medium on the shape and uniformity of the final particles has been demonstrated. A novel strategy for a colorimetric sensor for quantitative analysis of heavy metal ions in water has been developed, by surface modification of the nanoparticles synthesized by the proposed method. Colloids containing polymer-protected nanoparticles are shown to strongly absorb wavelengths in the near infrared range, suggesting possible applications as optical filters. Self-assembly of colloidal gold nanoparticles into micro-wires have been achieved employing biological templates.
650 0 _aNanoparticles
650 0 _aColloidal gold
650 0 _aColloids
700 1 _aDutta, Joydeep,
_eChairperson
700 1 _aSharma, A.B.,
_eExamination Committee
700 0 _aChanchana Thanachayanont,
_eExamination committee
710 2 _aAsian Institute of Technology Fellowship,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. ME-05-04
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B09815
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