Optical Sensors Based on II-VI Quantum Dots.
colloidal quantum dots
detection mechanisms
nanomaterials
sensors
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
02 Feb 2019
02 Feb 2019
Historique:
received:
30
12
2018
revised:
23
01
2019
accepted:
28
01
2019
entrez:
6
2
2019
pubmed:
6
2
2019
medline:
6
2
2019
Statut:
epublish
Résumé
Fundamentals of quantum dots (QDs) sensing phenomena show the predominance of these fluorophores over standard organic dyes, mainly because of their unique optical properties such as sharp and tunable emission spectra, high emission quantum yield and broad absorption. Moreover, they also indicate no photo bleaching and can be also grown as no blinking emitters. Due to these properties, QDs may be used e.g., for multiplex testing of the analyte by simultaneously detecting multiple or very weak signals. Physico-chemical mechanisms used for analyte detection, like analyte stimulated QDs aggregation, nonradiative Förster resonance energy transfer (FRET) exhibit a number of QDs, which can be applied in sensors. Quantum dots-based sensors find use in the detection of ions, organic compounds (e.g., proteins, sugars, volatile substances) as well as bacteria and viruses.
Identifiants
pubmed: 30717393
pii: nano9020192
doi: 10.3390/nano9020192
pmc: PMC6410100
pii:
doi:
Types de publication
Journal Article
Review
Langues
eng
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