Volume 13, Issue 9 e202000135
FULL ARTICLE

Optically activated and interrogated plasmonic hydrogels for applications in wound healing

Alessio Milanesi

Alessio Milanesi

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

Dipartimento di Chimica “Ugo Schiff”, Universitá degli Studi di Firenze, Sesto Fiorentino, Florence, Italy

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Giada Magni

Giada Magni

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

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Sonia Centi

Sonia Centi

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

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Gioacchino Schifino

Gioacchino Schifino

Istituto per la Sintesi Organica e la Fotoreattivitá, Consiglio Nazionale delle Ricerche, Bologna, Italy

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Annalisa Aluigi

Annalisa Aluigi

Istituto per la Sintesi Organica e la Fotoreattivitá, Consiglio Nazionale delle Ricerche, Bologna, Italy

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Boris N. Khlebtsov

Boris N. Khlebtsov

Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, Russia

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Lucia Cavigli

Lucia Cavigli

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

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Andrea Barucci

Andrea Barucci

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

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Nikolai G. Khlebtsov

Nikolai G. Khlebtsov

Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, Russia

Faculty of Nano- and Biomedical Technologies, Saratov State University, Saratov, Russia

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Fulvio Ratto

Corresponding Author

Fulvio Ratto

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

Correspondence

Fulvio Ratto and Francesca Rossi, Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy.

Email: [email protected] (F. Ra.) and [email protected] (F. Ro.)

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Francesca Rossi

Corresponding Author

Francesca Rossi

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

Correspondence

Fulvio Ratto and Francesca Rossi, Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy.

Email: [email protected] (F. Ra.) and [email protected] (F. Ro.)

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Roberto Pini

Roberto Pini

Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy

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First published: 15 June 2020
Citations: 18

Alessio Milanesi and Giada Magni are equally contributing authors.

Funding information: Consiglio Nazionale delle Ricerche, Grant/Award Number: HYPNOSYs; Fondazione Cassa di Risparmio di Firenze, Grant/Award Number: MONSTER; Russian Foundation for Basic Research, Grant/Award Number: 18-52-7803 "HYPNOSYs"

Abstract

We disclose the use of hybrid materials featuring Au/Ag core/shell nanorods in porous chitosan/polyvinyl alcohol scaffolds for applications in tissue engineering and wound healing. The combination of Au and Ag in a single construct provides synergistic opportunities for optical activation of functions as near infrared laser tissue bonding, and remote interrogation to return parameters of prognostic relevance in wound healing monitoring. In particular, the bimetallic component ensures optical tunability, enhanced shelf life and photothermal stability, serves as a reservoir of germicidal silver cations, and changes in near-infrared and visible color according to the environmental level of oxidative stress. At the same time, the polymeric blend is ideal to bind connective tissue upon photothermal activation, and to support fabrication processes that provide high porosity, such as electrospinning, thus putting all the premises for cellular repopulation and antimicrobial protection.image

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