Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters

Cecilia Cerretani; Tom Vosch

doi:10.1021/acsomega.9b00614

Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters

Cecilia Cerretani, Tom Vosch

Department of Chemistry

13 Citations (Scopus)

Abstract

We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H₂O₂, while the opposite conversion can be achieved by the addition of NaBH₄. Besides demonstrating the switching between red- and green-emissive DNA-AgNCs and determining the recoverability, we fully characterized the photophysical properties, such as steady-state emission, quantum yield, fluorescence lifetime, and anisotropy of the two emissive species. Understanding the mechanism behind the remarkable conversion between the two emitters could lead to the development of a new range of DNA-AgNC-based ratiometric sensors.

Original language	English
Journal	ACS Omega
Volume	4
Issue number	4
Pages (from-to)	7895-7902
ISSN	2470-1343
DOIs	https://doi.org/10.1021/acsomega.9b00614
Publication status	Published - 30 Apr 2019

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title = "Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters",

abstract = "We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H2O2, while the opposite conversion can be achieved by the addition of NaBH4. Besides demonstrating the switching between red- and green-emissive DNA-AgNCs and determining the recoverability, we fully characterized the photophysical properties, such as steady-state emission, quantum yield, fluorescence lifetime, and anisotropy of the two emissive species. Understanding the mechanism behind the remarkable conversion between the two emitters could lead to the development of a new range of DNA-AgNC-based ratiometric sensors.",

author = "Cecilia Cerretani and Tom Vosch",

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T1 - Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters

AU - Cerretani, Cecilia

AU - Vosch, Tom

N1 - Correction to “Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters” https://doi.org/10.1021/acsomega.9b01795

PY - 2019/4/30

Y1 - 2019/4/30

N2 - We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H2O2, while the opposite conversion can be achieved by the addition of NaBH4. Besides demonstrating the switching between red- and green-emissive DNA-AgNCs and determining the recoverability, we fully characterized the photophysical properties, such as steady-state emission, quantum yield, fluorescence lifetime, and anisotropy of the two emissive species. Understanding the mechanism behind the remarkable conversion between the two emitters could lead to the development of a new range of DNA-AgNC-based ratiometric sensors.

AB - We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H2O2, while the opposite conversion can be achieved by the addition of NaBH4. Besides demonstrating the switching between red- and green-emissive DNA-AgNCs and determining the recoverability, we fully characterized the photophysical properties, such as steady-state emission, quantum yield, fluorescence lifetime, and anisotropy of the two emissive species. Understanding the mechanism behind the remarkable conversion between the two emitters could lead to the development of a new range of DNA-AgNC-based ratiometric sensors.

U2 - 10.1021/acsomega.9b00614

DO - 10.1021/acsomega.9b00614

M3 - Journal article

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SP - 7895

EP - 7902

JO - ACS Omega

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Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters

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