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Nanoclay-polyamine composite hydrogel for topical delivery of nitric oxide gas via innate gelation characteristics of laponite

Nanoclay-polyamine composite hydrogel for topical delivery of nitric oxide gas via innate gelation characteristics of laponite
Nanoclay-polyamine composite hydrogel for topical delivery of nitric oxide gas via innate gelation characteristics of laponite
Because nitric oxide (NO) gas is an endogenously produced signaling molecule related to numerous physiological functions, manystudies have been conducted to develop NO delivery systems for potential biomedical applications. However, NO is a reactive radical gas molecule that has a very short life-time and readily transforms into nitrogen oxide species via reaction with oxygen species. Therefore, it is necessary to develop an NO delivery carrier that allows local release of the NO gas at the site of application. In this study, Laponite (LP) nanoclay was used to fabricate an NO delivery carrier through the formation of Laponite–polyamine (LP–PAn) composites. The Laponite clay and pentaethylenehexamine (PEHA) formed a macromolecular structure by electrostatic interaction and the nitric oxide donor, N-diazeniumdiolate (NONOates), was synthesized into the LP–PAn composite. We investigated the conformation of the LP–PAn composite structure and the NO donor formation by ζ potential, X-ray diffraction, and UV–vis and Fourier transform infrared (FT-IR) spectroscopies and also by analyzing the NO release profile. Additionally, we confirmed the applicability in biomedical applications via a cell viability and in vitro endothelial cell tube formation assay.
1525-7797
2096-2103
Park, Kyungtae
49dc0f89-3793-476a-8c6b-e0dc7fe4ca03
Dawson, Jonathan
b220fe76-498d-47be-9995-92da6c289cf3
Oreffo, Richard
ff9fff72-6855-4d0f-bfb2-311d0e8f3778
Kim, Yanghee
de0d641b-c2cb-4e73-9ae2-e20d33689f5d
Hong, Jinkee
1a7277e4-0e22-4aab-adc5-ff05adc57289
Park, Kyungtae
49dc0f89-3793-476a-8c6b-e0dc7fe4ca03
Dawson, Jonathan
b220fe76-498d-47be-9995-92da6c289cf3
Oreffo, Richard
ff9fff72-6855-4d0f-bfb2-311d0e8f3778
Kim, Yanghee
de0d641b-c2cb-4e73-9ae2-e20d33689f5d
Hong, Jinkee
1a7277e4-0e22-4aab-adc5-ff05adc57289

Park, Kyungtae, Dawson, Jonathan, Oreffo, Richard, Kim, Yanghee and Hong, Jinkee (2020) Nanoclay-polyamine composite hydrogel for topical delivery of nitric oxide gas via innate gelation characteristics of laponite. Biomacromolecules, 21 (6), 2096-2103. (doi:10.1021/acs.biomac.0c00086).

Record type: Article

Abstract

Because nitric oxide (NO) gas is an endogenously produced signaling molecule related to numerous physiological functions, manystudies have been conducted to develop NO delivery systems for potential biomedical applications. However, NO is a reactive radical gas molecule that has a very short life-time and readily transforms into nitrogen oxide species via reaction with oxygen species. Therefore, it is necessary to develop an NO delivery carrier that allows local release of the NO gas at the site of application. In this study, Laponite (LP) nanoclay was used to fabricate an NO delivery carrier through the formation of Laponite–polyamine (LP–PAn) composites. The Laponite clay and pentaethylenehexamine (PEHA) formed a macromolecular structure by electrostatic interaction and the nitric oxide donor, N-diazeniumdiolate (NONOates), was synthesized into the LP–PAn composite. We investigated the conformation of the LP–PAn composite structure and the NO donor formation by ζ potential, X-ray diffraction, and UV–vis and Fourier transform infrared (FT-IR) spectroscopies and also by analyzing the NO release profile. Additionally, we confirmed the applicability in biomedical applications via a cell viability and in vitro endothelial cell tube formation assay.

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(2nd rebuttal) Biomacromolecules_manuscript_Final - Accepted Manuscript
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More information

Accepted/In Press date: 8 April 2020
e-pub ahead of print date: 8 April 2020

Identifiers

Local EPrints ID: 442286
URI: http://eprints.soton.ac.uk/id/eprint/442286
ISSN: 1525-7797
PURE UUID: 33e69777-194b-4136-87ff-87e820d6dd4b
ORCID for Jonathan Dawson: ORCID iD orcid.org/0000-0002-6712-0598
ORCID for Richard Oreffo: ORCID iD orcid.org/0000-0001-5995-6726

Catalogue record

Date deposited: 10 Jul 2020 16:41
Last modified: 26 Nov 2021 05:38

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Contributors

Author: Kyungtae Park
Author: Jonathan Dawson ORCID iD
Author: Richard Oreffo ORCID iD
Author: Yanghee Kim
Author: Jinkee Hong

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