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Association Behavior of a Nitrilotriacetic‐Acid‐Modified Dye in a Poly(Vinyl Alcohol) Film Containing Ni(II)‐Adsorbed Gold Nanoparticles
Author(s) -
Sakamoto Masanori,
Tachikawa Takashi,
Kim Sung Sik,
Fujitsuka Mamoru,
Majima Tetsuro
Publication year - 2007
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200700328
Subject(s) - vinyl alcohol , nitrilotriacetic acid , adsorption , colloidal gold , chemistry , nanoparticle , metal , alcohol , nuclear chemistry , benzyl alcohol , polymer chemistry , inorganic chemistry , materials science , organic chemistry , nanotechnology , polymer , chelation , catalysis
The association behavior of the dyes 5(6)‐carboxyfluorescein and nitrilotriacetic acid (NTA)‐modified 5(6)‐carboxyfluorescein (F‐NTA) in a poly(vinyl alcohol) (PVA) film and in a PVA film containing metal nanoparticles is investigated. Well‐dispersed gold nanoparticles (AuNps) and Ni(II)‐adsorbed AuNps are formed in the PVA film using in situ photochemical fabrication method. 5(6)‐carboxyfluorescein and F‐NTA are doped into the films. The F‐NTA forms an H‐aggregate in the PVA film containing Ni(II)‐adsorbed AuNps. It is suggested that the interaction between NTA and Ni(II) adsorbed on the AuNps promotes the formation of the H‐aggregate.