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Synthesis of photoresponsive dual NIR two-photon absorptive [60]fullerene triads and tetrads.

ABSTRACT: Broadband nonlinear optical (NLO) organic nanostructures exhibiting both ultrafast photoresponse and a large cross-section of two-photon absorption throughout a wide NIR spectrum may make them suitable for use as nonlinear biophotonic materials. We report here the synthesis and characterization of two C??-(antenna)(x) analogous compounds as branched triad C??(>DPAF-C??)(>CPAF-C(2M)) and tetrad C??(>DPAF-C??)(>CPAF-C(2M))? nanostructures. These compounds showed approximately equal extinction coefficients of optical absorption over 400-550 nm that corresponds to near-IR two-photon based excitation wavelengths at 780-1,100 nm. Accordingly, they may be utilized as potential precursor candidates to the active-core structures of photosensitizing nanodrugs for 2?-PDT in the biological optical window of 800-1,050 nm.

SUBMITTER: Jeon S

PROVIDER: S-EPMC3830959 | biostudies-literature | 2013 Aug

REPOSITORIES: biostudies-literature

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Synthesis of photoresponsive dual NIR two-photon absorptive [60]fullerene triads and tetrads.

Jeon Seaho S Wang Min M Tan Loon-Seng LS Cooper Thomas T Hamblin Michael R MR Chiang Long Y LY

Molecules (Basel, Switzerland) 20130812 8

Broadband nonlinear optical (NLO) organic nanostructures exhibiting both ultrafast photoresponse and a large cross-section of two-photon absorption throughout a wide NIR spectrum may make them suitable for use as nonlinear biophotonic materials. We report here the synthesis and characterization of two C₆₀-(antenna)(x) analogous compounds as branched triad C₆₀(>DPAF-C₁₈)(>CPAF-C(2M)) and tetrad C₆₀(>DPAF-C₁₈)(>CPAF-C(2M))₂ nanostructures. These compounds showed approximately equal extinction coef ...[more]

PMID: 23941881

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