Quantification of Nitric Oxide Concentration Using Single-Walled Carbon Nanotube Sensors.
carbon nanotube sensors
concentration quantification
nitric oxide
reactive species
spatial detection
temporal detection
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
18 Jan 2021
18 Jan 2021
Historique:
received:
02
12
2020
revised:
29
12
2020
accepted:
30
12
2020
entrez:
22
1
2021
pubmed:
23
1
2021
medline:
23
1
2021
Statut:
epublish
Résumé
Nitric oxide (NO), a free radical present in biological systems, can have many detrimental effects on the body, from inflammation to cancer. Due to NO's short half-life, detection and quantification is difficult. The inability to quantify NO has hindered researchers' understanding of its impact in healthy and diseased conditions. Single-walled carbon nanotubes (SWNTs), when wrapped in a specific single-stranded DNA chain, becomes selective to NO, creating a fluorescence sensor. Unfortunately, the correlation between NO concentration and the SWNT's fluorescence intensity has been difficult to determine due to an inability to immobilize the sensor without altering its properties. Through the use of a recently developed sensor platform, systematic studies can now be conducted to determine the correlation between SWNT fluorescence and NO concentration. This paper explains the methods used to determine the equations that can be used to convert SWNT fluorescence into NO concentration. Through the use of the equations developed in this paper, an easy method for NO quantification is provided. The methods outlined in this paper will also enable researchers to develop equations to determine the concentration of other reactive species through the use of SWNT sensors.
Identifiants
pubmed: 33477618
pii: nano11010243
doi: 10.3390/nano11010243
pmc: PMC7831316
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : NIH HHS
ID : P30 GM127200
Pays : United States
Organisme : National Science Foundation
ID : OIA-1557417
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