2023
DOI: 10.1039/d3tb00103b
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Gold nanoparticle-based two-photon fluorescent nanoprobe for monitoring intracellular nitric oxide levels

Abstract: Nitric oxide (NO) plays an important role in the regulation of the immune, cardiovascular and nervous systems. Consequently, being able to monitor and quantify intracellular NO levels would provide a...

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Cited by 5 publications
(2 citation statements)
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“…As a proof‐of‐concept study, the bilayer was formed using activated oleate (oleate‐NHS‐ester) along with non‐activated oleate and an amine derivative of the nitric oxide (NO)‐sensitive dye DANPY‐NO, [20] referred to herein as the NO‐probe (Figure 3, bottom). This two‐photon excitable molecular probe has shown excellent performance for the detection of NO in a broad range of cells, including human macrophages and endothelial cells [20, 21] . The functionalization of UCNPs@bilayer with the NO‐probe, motivated by the potential that a NIR‐excitable ratiometric nanoprobe could have for biological applications, was achieved by a coupling reaction to previously carbodiimide‐activated oleate molecules (1 mol % of total oleate) which were present during the bilayer formation.…”
Section: Resultsmentioning
confidence: 99%
“…As a proof‐of‐concept study, the bilayer was formed using activated oleate (oleate‐NHS‐ester) along with non‐activated oleate and an amine derivative of the nitric oxide (NO)‐sensitive dye DANPY‐NO, [20] referred to herein as the NO‐probe (Figure 3, bottom). This two‐photon excitable molecular probe has shown excellent performance for the detection of NO in a broad range of cells, including human macrophages and endothelial cells [20, 21] . The functionalization of UCNPs@bilayer with the NO‐probe, motivated by the potential that a NIR‐excitable ratiometric nanoprobe could have for biological applications, was achieved by a coupling reaction to previously carbodiimide‐activated oleate molecules (1 mol % of total oleate) which were present during the bilayer formation.…”
Section: Resultsmentioning
confidence: 99%
“…In einer Machbarkeitsstudie wurde die Doppelschicht unter Verwendung von aktiviertem Oleat (Oleat‐NHS‐Ester) zusammen mit nicht aktiviertem Oleat und einem Aminderivat des Stickstoffmonoxid (NO)‐empfindlichen Farbstoffs DANPY‐NO gebildet, [20] der hier als NO‐Sonde bezeichnet wird (Abbildung 3, unten). Diese über zwei Photonen anregbare molekulare Sonde hat sich für den Nachweis von NO in einem breiten Spektrum von Zellen, einschließlich menschlicher Makrophagen und Endothelzellen, hervorragend bewährt [20, 21] . Die Funktionalisierung der UCNPs@Bilayer mit der NO‐Sonde, motiviert durch das Potenzial, welches eine NIR‐anregbare ratiometrische Nanosonde für biologische Anwendungen haben könnte, wurde durch eine Kopplungsreaktion mit zuvor Carbodiimid‐aktivierten Oleatmolekülen (1 mol % des gesamten Oleats) erreicht, die während der Doppelschichtbildung vorhanden waren.…”
Section: Ergebnisse Und Diskussionunclassified