期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 1, 期 8, 页码 1181-1185出版社
AMER CHEMICAL SOC
DOI: 10.1021/jz1002154
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资金
- Spanish Ministerio de Ciencia e Innovacion [MAT2007-62696]
- EU [CP-FP 213948-2]
We report experimental and theoretical demonstration regarding the hydrogen-bonding mechanism behind the end-to-end assembly of gold nanorods modified with bifunctional linking molecules. Time-dependent assembly studies were carried out for different linking molecules at both higher and lower pH values with respect to their respective pK(a) values and were all found to be in agreement with a hydrogen-bonding theory. The results indicate that hydrogen bonding between protonated and unprotonated linking molecules is responsible for nanorod assembly in aqueous solution. Complementary information regarding the stability of the hydrogen-bonded configurations was obtained by density functional calculations for different protonation states.
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