Specific detection of cysteine and homocysteine: recognizing one-methylene difference using fluorosurfactant-capped gold nanoparticles

Specific detection of cysteine and homocysteine: recognizing one-methylene difference using fluorosurfactant-capped gold nanoparticles

Aggregation of fluorosurfactant-capped gold nanoparticles could be induced selectively by cysteine and homocysteine and, when solution ionic strength was low, the kinetics of homocysteine-induced aggregation of large size nanoparticles (approximately 40 nm) was much faster than that induced by cyste...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Chemical communications (Cambridge, England) England), 2007-01 (37), p.3871-3873
Hauptverfasser: Lu, Chao, Zu, Yanbing
Format: Artikel
Sprache:eng
Schlagworte:
Cysteine - analysis
Cysteine - chemistry
Gold - chemistry
Homocysteine - analysis
Homocysteine - chemistry
Hydrogen Bonding
Kinetics
Nanoparticles - chemistry
Osmolar Concentration
Sodium Chloride - chemistry
Solutions - chemistry
Surface-Active Agents - chemistry
Time Factors
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Aggregation of fluorosurfactant-capped gold nanoparticles could be induced selectively by cysteine and homocysteine and, when solution ionic strength was low, the kinetics of homocysteine-induced aggregation of large size nanoparticles (approximately 40 nm) was much faster than that induced by cysteine, leading to specific detection of homocysteine in the presence of excess cysteine.
ISSN:1359-7345
1364-548X
DOI:10.1039/b708603b