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Modified-Release Drug Delivery Systems: Stimuli-Activated

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A stimuli-responsive hydrogel for reversible information storage, encryption and decryption.

Yuyu Xue1, Xiaojuan Lai2, Lei Wang2

  • 1Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China.

Journal of Colloid and Interface Science
|February 13, 2024
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel smart hydrogel (PPNS) for high-resolution, repeatable information storage. This material enables reversible recording, encryption, and decryption using ethanol, offering a promising platform for advanced data storage solutions.

Keywords:
HydrogelHydrogen bondInformation storageN-isopropylacrylamideTemperature-sensitive

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Information Storage

Background:

  • Smart hydrogels are sensitive to external stimuli, offering reversible dynamic responses applicable to information storage.
  • Developing hydrogels with high-resolution, repeatable recording, and robust encryption/decryption capabilities remains a significant challenge.

Purpose of the Study:

  • To synthesize a novel polymer hydrogel with enhanced information storage capabilities.
  • To investigate the hydrogel's performance in high-resolution, repeatable recording, and reversible encryption/decryption.

Main Methods:

  • Synthesis of polyvinyl alcohol-n-isopropylacrylamide-octadecyl polyoxyethylene ether acrylate hydrogel (PPNS) via copolymerization.
  • Utilized N-isopropylacrylamide, polyvinyl alcohol, and octadecyl polyoxyethylene ether acrylate (SGA15) as raw materials.
  • Evaluated information recording, encryption, and decryption using anhydrous ethanol as an inducer and varying SGA15 concentrations.

Main Results:

  • The synthesized PPNS hydrogel demonstrated high-resolution, repeatable recording, and reversible information encryption/decryption.
  • PPNS-2% hydrogel (with 2% SGA15) showed superior performance in information handling with anhydrous ethanol and deionized water.
  • The PPNS-2% hydrogel maintained excellent mechanical properties over 25 cycles and allowed for reversible recording via ethanol inscription and erasure.

Conclusions:

  • The PPNS hydrogel exhibits excellent potential for innovative information storage platforms due to its responsive and dynamic nature.
  • Ethanol acts as a specialized medium for inscribing and erasing information, enabling reversible data manipulation.
  • The developed hydrogel addresses key challenges in high-resolution, repeatable data recording and encryption/decryption.