High photoluminescence nitrogen, phosphorus co-doped carbon nanodots for assessment of microbial viability.
Colloids Surf B Biointerfaces
; 191: 110987, 2020 Jul.
Article
em En
| MEDLINE
| ID: mdl-32325360
ABSTRACT
Assessment of microbial viability plays a key role in human health protection. Optical imaging based on fluorescent dyes is a simple and convenient way to assess microbial viability. However, it is still a challenge to obtain stable, nontoxic and low-cost dyes. Herein, we prepared a nitrogen and phosphorus co-doped carbon nanodots (N, P-CDs) via a one-step solvothermal method. The prepared CDs possess plenty of functional groups and exhibit high stability, good biocompatibility, excellent photoluminescent and low toxicity. Especially, the properties of high quantum yield (89.9%) and highly negative surface charge (-41.9 mV) make the prepared N, P-CDs ideal materials for microbial differentiation. Compared with commercial dyes, our CDs are more stable, cost less, which can rapidly distinguish dead microorganisms from living ones with higher specificity.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bactérias
/
Pontos Quânticos
/
Nanoestruturas
/
Viabilidade Microbiana
/
Corantes Fluorescentes
/
Fungos
Limite:
Humans
Idioma:
En
Revista:
Colloids Surf B Biointerfaces
Assunto da revista:
QUIMICA
Ano de publicação:
2020
Tipo de documento:
Article