Highly selective and sensitive detection of trinitrotoluene by framework-enhanced fluorescence of gold nanoclusters.
Anal Chim Acta
; 1106: 133-138, 2020 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-32145841
ABSTRACT
Precise analysis of explosives is important for environmental pollution evaluation and terrorist prevention. However, rapid assay of explosives with high selectivity and sensitivity remains difficult. Here, we show that the gold nanocluster-modified metal-organic frameworks are excellent optical probes for explosive detection. The nanoclusters exhibit enhanced luminescence and selectively respond toward 2,4,6-trinitrotoluene over other explosives with a detection limit of 5 nM and fast response within 1 min. The efficient assay is resulted from the framework-mediated cluster aggregation and TNT binding.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Trinitrotolueno
/
Nanopartículas Metálicas
/
Fluorescência
/
Corantes Fluorescentes
/
Estruturas Metalorgânicas
/
Ouro
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Anal Chim Acta
Ano de publicação:
2020
Tipo de documento:
Article