Hybrids of gold nanoparticles and oligo(p-phenyleneethynylene)s end-functionalized with alkynylruthenium groups: Outstanding two-photon absorption in the second biological window

Cristóbal Quintana; Mahbod Morshedi; Jun Du; Joseph P.L. Morrall; Jan K. Zaręba; Marek Samoc; Marie P. Cifuentes; Mark G. Humphrey

doi:10.1007/s12274-020-2924-4

Hybrids of gold nanoparticles and oligo(p-phenyleneethynylene)s end-functionalized with alkynylruthenium groups: Outstanding two-photon absorption in the second biological window

Cristóbal Quintana, Mahbod Morshedi, Jun Du, Joseph P.L. Morrall, Jan K. Zaręba, Marek Samoc, Marie P. Cifuentes, Mark G. Humphrey^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Oligo(p-phenyleneethynylene)s (OPEs) end-capped with (alkynyl)bis(diphosphine)ruthenium and thiol/thiolate groups stabilize ca. 2 nm diameter gold nanoparticles (AuNPs). The morphology, elemental composition and stability of the resultant organometallic OPE/AuNP hybrid materials have been defined using a combination of molecular- and nano-material chacterization techniques. The hybrids display long-term stability in solution (more than a month), good solubility in organic solvents, reversible ruthenium-centered oxidation, and transparency beyond 800 nm, and possess very strong nonlinear absorption activity at the first biological window, and unprecedented two-photon absorption activity in the second biological window (σ₂ up to 38,000 GM at 1,050 nm). [Figure not available: see fulltext.].

Original language	English
Pages (from-to)	2755-2762
Number of pages	8
Journal	Nano Research
Volume	13
Issue number	10
DOIs	https://doi.org/10.1007/s12274-020-2924-4
Publication status	Published - 1 Oct 2020

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Quintana, C., Morshedi, M., Du, J., Morrall, J. P. L., Zaręba, J. K., Samoc, M., Cifuentes, M. P., & Humphrey, M. G. (2020). Hybrids of gold nanoparticles and oligo(p-phenyleneethynylene)s end-functionalized with alkynylruthenium groups: Outstanding two-photon absorption in the second biological window. Nano Research, 13(10), 2755-2762. https://doi.org/10.1007/s12274-020-2924-4

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title = "Hybrids of gold nanoparticles and oligo(p-phenyleneethynylene)s end-functionalized with alkynylruthenium groups: Outstanding two-photon absorption in the second biological window",

abstract = "Oligo(p-phenyleneethynylene)s (OPEs) end-capped with (alkynyl)bis(diphosphine)ruthenium and thiol/thiolate groups stabilize ca. 2 nm diameter gold nanoparticles (AuNPs). The morphology, elemental composition and stability of the resultant organometallic OPE/AuNP hybrid materials have been defined using a combination of molecular- and nano-material chacterization techniques. The hybrids display long-term stability in solution (more than a month), good solubility in organic solvents, reversible ruthenium-centered oxidation, and transparency beyond 800 nm, and possess very strong nonlinear absorption activity at the first biological window, and unprecedented two-photon absorption activity in the second biological window (σ2 up to 38,000 GM at 1,050 nm). [Figure not available: see fulltext.].",

keywords = "gold nanoparticles, inorganic materials, metal alkynyl complexes, nonlinear optics, organometallics",

author = "Crist{\'o}bal Quintana and Mahbod Morshedi and Jun Du and Morrall, {Joseph P.L.} and Zar{\c e}ba, {Jan K.} and Marek Samoc and Cifuentes, {Marie P.} and Humphrey, {Mark G.}",

note = "Publisher Copyright: {\textcopyright} 2020, Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature.",

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doi = "10.1007/s12274-020-2924-4",

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Quintana, C, Morshedi, M, Du, J, Morrall, JPL, Zaręba, JK, Samoc, M, Cifuentes, MP & Humphrey, MG 2020, 'Hybrids of gold nanoparticles and oligo(p-phenyleneethynylene)s end-functionalized with alkynylruthenium groups: Outstanding two-photon absorption in the second biological window', Nano Research, vol. 13, no. 10, pp. 2755-2762. https://doi.org/10.1007/s12274-020-2924-4

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T1 - Hybrids of gold nanoparticles and oligo(p-phenyleneethynylene)s end-functionalized with alkynylruthenium groups

T2 - Outstanding two-photon absorption in the second biological window

AU - Quintana, Cristóbal

AU - Morshedi, Mahbod

AU - Du, Jun

AU - Morrall, Joseph P.L.

AU - Zaręba, Jan K.

AU - Samoc, Marek

AU - Cifuentes, Marie P.

AU - Humphrey, Mark G.

PY - 2020/10/1

Y1 - 2020/10/1

N2 - Oligo(p-phenyleneethynylene)s (OPEs) end-capped with (alkynyl)bis(diphosphine)ruthenium and thiol/thiolate groups stabilize ca. 2 nm diameter gold nanoparticles (AuNPs). The morphology, elemental composition and stability of the resultant organometallic OPE/AuNP hybrid materials have been defined using a combination of molecular- and nano-material chacterization techniques. The hybrids display long-term stability in solution (more than a month), good solubility in organic solvents, reversible ruthenium-centered oxidation, and transparency beyond 800 nm, and possess very strong nonlinear absorption activity at the first biological window, and unprecedented two-photon absorption activity in the second biological window (σ2 up to 38,000 GM at 1,050 nm). [Figure not available: see fulltext.].

AB - Oligo(p-phenyleneethynylene)s (OPEs) end-capped with (alkynyl)bis(diphosphine)ruthenium and thiol/thiolate groups stabilize ca. 2 nm diameter gold nanoparticles (AuNPs). The morphology, elemental composition and stability of the resultant organometallic OPE/AuNP hybrid materials have been defined using a combination of molecular- and nano-material chacterization techniques. The hybrids display long-term stability in solution (more than a month), good solubility in organic solvents, reversible ruthenium-centered oxidation, and transparency beyond 800 nm, and possess very strong nonlinear absorption activity at the first biological window, and unprecedented two-photon absorption activity in the second biological window (σ2 up to 38,000 GM at 1,050 nm). [Figure not available: see fulltext.].

KW - gold nanoparticles

KW - inorganic materials

KW - metal alkynyl complexes

KW - nonlinear optics

KW - organometallics

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DO - 10.1007/s12274-020-2924-4

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JO - Nano Research

JF - Nano Research

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Hybrids of gold nanoparticles and oligo(p-phenyleneethynylene)s end-functionalized with alkynylruthenium groups: Outstanding two-photon absorption in the second biological window

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