Red Light Activation of Tetrazine-Norbornene Conjugation for Bioorthogonal Polymer Cross-Linking across Tissue

Vinh X. Truong; Kelly M. Tsang; Fran Ercole; John S. Forsythe

doi:10.1021/acs.chemmater.7b00561

Red Light Activation of Tetrazine-Norbornene Conjugation for Bioorthogonal Polymer Cross-Linking across Tissue

Vinh X. Truong, Kelly M. Tsang, Fran Ercole, John S. Forsythe

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50 Citations (Scopus)

Abstract

Light-triggered chemistry has been used extensively in polymer cross-linking for the preparation of hydrogels. However, most photoclick reactions rely on the use of UV light that is easily absorbed by and damaging to cells and tissue. We report the utilization of red light-catalyzed oxidation of dihydrogen tetrazine for activation of tetrazine-norbornene inverse electron-demand Diels-Alder conjugation. The activation takes place rapidly under physiological conditions and was applied in polymer conjugation and cross-linking to form hydrogels. Gelation was demonstrated to occur behind a dermal tissue model with a thickness of 1 cm, and the cross-linking process is nontoxic to mesenchymal stem cells, allowing encapsulation of hMSC within the gel matrix.

Original language	English
Pages (from-to)	3678-3685
Number of pages	8
Journal	Chemistry of Materials
Volume	29
Issue number	8
DOIs	https://doi.org/10.1021/acs.chemmater.7b00561
Publication status	Published - 25 Apr 2017

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10.1021/acs.chemmater.7b00561

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title = "Red Light Activation of Tetrazine-Norbornene Conjugation for Bioorthogonal Polymer Cross-Linking across Tissue",

abstract = "Light-triggered chemistry has been used extensively in polymer cross-linking for the preparation of hydrogels. However, most photoclick reactions rely on the use of UV light that is easily absorbed by and damaging to cells and tissue. We report the utilization of red light-catalyzed oxidation of dihydrogen tetrazine for activation of tetrazine-norbornene inverse electron-demand Diels-Alder conjugation. The activation takes place rapidly under physiological conditions and was applied in polymer conjugation and cross-linking to form hydrogels. Gelation was demonstrated to occur behind a dermal tissue model with a thickness of 1 cm, and the cross-linking process is nontoxic to mesenchymal stem cells, allowing encapsulation of hMSC within the gel matrix.",

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AU - Tsang, Kelly M.

AU - Ercole, Fran

AU - Forsythe, John S.

PY - 2017/4/25

Y1 - 2017/4/25

N2 - Light-triggered chemistry has been used extensively in polymer cross-linking for the preparation of hydrogels. However, most photoclick reactions rely on the use of UV light that is easily absorbed by and damaging to cells and tissue. We report the utilization of red light-catalyzed oxidation of dihydrogen tetrazine for activation of tetrazine-norbornene inverse electron-demand Diels-Alder conjugation. The activation takes place rapidly under physiological conditions and was applied in polymer conjugation and cross-linking to form hydrogels. Gelation was demonstrated to occur behind a dermal tissue model with a thickness of 1 cm, and the cross-linking process is nontoxic to mesenchymal stem cells, allowing encapsulation of hMSC within the gel matrix.

AB - Light-triggered chemistry has been used extensively in polymer cross-linking for the preparation of hydrogels. However, most photoclick reactions rely on the use of UV light that is easily absorbed by and damaging to cells and tissue. We report the utilization of red light-catalyzed oxidation of dihydrogen tetrazine for activation of tetrazine-norbornene inverse electron-demand Diels-Alder conjugation. The activation takes place rapidly under physiological conditions and was applied in polymer conjugation and cross-linking to form hydrogels. Gelation was demonstrated to occur behind a dermal tissue model with a thickness of 1 cm, and the cross-linking process is nontoxic to mesenchymal stem cells, allowing encapsulation of hMSC within the gel matrix.

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Red Light Activation of Tetrazine-Norbornene Conjugation for Bioorthogonal Polymer Cross-Linking across Tissue

Abstract

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ARC Centre of Excellence in Convergent Bio-Nano Science and Technology

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Red Light Activation of Tetrazine-Norbornene Conjugation for Bioorthogonal Polymer Cross-Linking across Tissue

Abstract

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ARC Centre of Excellence in Convergent Bio-Nano Science and Technology

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