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Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel
Based on degradable pH-responsive hydrogel, we report on an enhanced three-dimensional data encryption security technique in which a pH value is used for information manipulation. Featuring three types of states upon the pH value variation, namely, shrinkage, expansion and degradation, the hydrogel...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8307476/ https://www.ncbi.nlm.nih.gov/pubmed/34361130 http://dx.doi.org/10.3390/nano11071744 |
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author | Wen, Hongjing Wang, Bin Zhu, Hongbo Wu, Shiyu Xu, Xiaoxuan Li, Xiangping Cao, Yaoyu |
author_facet | Wen, Hongjing Wang, Bin Zhu, Hongbo Wu, Shiyu Xu, Xiaoxuan Li, Xiangping Cao, Yaoyu |
author_sort | Wen, Hongjing |
collection | PubMed |
description | Based on degradable pH-responsive hydrogel, we report on an enhanced three-dimensional data encryption security technique in which a pH value is used for information manipulation. Featuring three types of states upon the pH value variation, namely, shrinkage, expansion and degradation, the hydrogel renders a limited pH value window as the “key” for information decryption. The pH-dependent shrinkage-to-expansion conversion of the hydrogel leads to a threshold pH value for retrieving the recorded data, whilst the degradability of the hydrogel, which can be tuned by adjusting the composition ratio of PEGDA/AAc, gives rise to a second threshold pH value for irreversibly sabotaging the retrieved data. Pre-doping silver ions in the hydrogel facilitates explicit recording and reading of binary data in forms of three-dimensional silver patterns through photoreduction and scattering, respectively, with a femtosecond laser. By accurately matching the vertical spacing of the encoded silver nanopatterns with the diffraction-limited focal depth of the decryption microscope, we can tune the pH value to encrypt and retrieve information recorded in layers and set a critical pH value to smash encoded information, which proves a highly secured 3D data encoding protocol. This strategy can effectively enrich data encryption techniques, vastly enhancing data security within unattained chemical dimensions. |
format | Online Article Text |
id | pubmed-8307476 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83074762021-07-25 Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel Wen, Hongjing Wang, Bin Zhu, Hongbo Wu, Shiyu Xu, Xiaoxuan Li, Xiangping Cao, Yaoyu Nanomaterials (Basel) Article Based on degradable pH-responsive hydrogel, we report on an enhanced three-dimensional data encryption security technique in which a pH value is used for information manipulation. Featuring three types of states upon the pH value variation, namely, shrinkage, expansion and degradation, the hydrogel renders a limited pH value window as the “key” for information decryption. The pH-dependent shrinkage-to-expansion conversion of the hydrogel leads to a threshold pH value for retrieving the recorded data, whilst the degradability of the hydrogel, which can be tuned by adjusting the composition ratio of PEGDA/AAc, gives rise to a second threshold pH value for irreversibly sabotaging the retrieved data. Pre-doping silver ions in the hydrogel facilitates explicit recording and reading of binary data in forms of three-dimensional silver patterns through photoreduction and scattering, respectively, with a femtosecond laser. By accurately matching the vertical spacing of the encoded silver nanopatterns with the diffraction-limited focal depth of the decryption microscope, we can tune the pH value to encrypt and retrieve information recorded in layers and set a critical pH value to smash encoded information, which proves a highly secured 3D data encoding protocol. This strategy can effectively enrich data encryption techniques, vastly enhancing data security within unattained chemical dimensions. MDPI 2021-07-01 /pmc/articles/PMC8307476/ /pubmed/34361130 http://dx.doi.org/10.3390/nano11071744 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wen, Hongjing Wang, Bin Zhu, Hongbo Wu, Shiyu Xu, Xiaoxuan Li, Xiangping Cao, Yaoyu Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel |
title | Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel |
title_full | Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel |
title_fullStr | Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel |
title_full_unstemmed | Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel |
title_short | Security-Enhanced 3D Data Encryption Using a Degradable pH-Responsive Hydrogel |
title_sort | security-enhanced 3d data encryption using a degradable ph-responsive hydrogel |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8307476/ https://www.ncbi.nlm.nih.gov/pubmed/34361130 http://dx.doi.org/10.3390/nano11071744 |
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