New Composite Hydrogels

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Hybrid and Composite Crystalline Materials".

Deadline for manuscript submissions: closed (30 November 2020) | Viewed by 3699

Special Issue Editor


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Guest Editor
MIREA - Russian Technological University (RTU MIREA), Moscow, Russia
Interests: diffraction methods; crystal structure; synthesis; properties; forecasting; information technology
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Special Issue Information

Dear Colleagues,

In recent years, research on the creation, investigation, and application of composite hydrogels with different structures and compositions is actively developing due to the unique physicochemical (large specific surface area, porosity, etc.) and functional (optical, mechanical, deformation strength, a large degree of swelling in water and aqueous solutions, etc.) properties of these materials. These properties determine a wide range of applications, from technical fields (sorbents, gas separation, ion-exchange membranes, etc.) to the food industry (food structurizers) and medicine (carriers of medicines for targeted delivery). Many hydrogels are analogues of natural systems and may be considered as model systems for basic research in chemistry, medicine, biotechnology, and engineering. The so-called “smart” or intelligent composite hydrogels, which are able to respond to small changes in the external environment in a pre-programmed way, are of particular interest. This opens up new possibilities for the use of composite hydrogels with such unusual properties in regenerative medicine, antimicrobial therapy, robotics, etc. Success in the development of this field can only be achieved through the joint efforts of specialists in various areas.

We invite researchers to contribute to the Special Issue on New Composite Hydrogels. This Special Issue is intended to reveal the latest achievements in synthesis technology, modern investigation methods and techniques, and applications of composite hydrogels.

 The potential topics include, but are not limited to:

- Synthesis of composite hydrogels with different compositions;

- Characterization of composite hydrogels and their components by diffraction, small-angle scattering, spectroscopic, microscopic, and other advanced techniques;

- Properties and their correlation with composition and structure of composite hydrogels and their components;

- “Smart” composite hydrogels and management of their properties;

- Modern methods for modeling and calculation of the composition and structure of composite hydrogels;

- Application of composite hydrogels in available or completely new fields.

Prof. Galina M. Kuz'micheva
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • Hydrogels
  • intelligent materials
  • composition
  • structure
  • properties
  • characterization methods
  • new applications

Published Papers (1 paper)

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Research

9 pages, 2233 KiB  
Article
Preparation of Cellulose Nanocrystal-Reinforced Physical Hydrogels for Actuator Application
by Jaehwan Kim, Tippabattini Jayaramudu, Lindong Zhai, Hyun Chan Kim and Dickens Owino Agumba
Crystals 2020, 10(11), 969; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst10110969 - 26 Oct 2020
Cited by 12 | Viewed by 3345
Abstract
In the present investigation, we prepared cellulose nanocrystal (CNC)-reinforced polyvinyl alcohol-cellulose (PVA-Cell) physical hydrogels using a simple blending method for actuator application. The prepared hydrogels were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and the surface and cross-section were studied by scanning [...] Read more.
In the present investigation, we prepared cellulose nanocrystal (CNC)-reinforced polyvinyl alcohol-cellulose (PVA-Cell) physical hydrogels using a simple blending method for actuator application. The prepared hydrogels were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and the surface and cross-section were studied by scanning electron microscopy. CNCs were well dispersed in the PVA-Cell hydrogel. In the preparation process, surface hydroxyl groups of the CNC and PVA-Cell matrix hydroxyl groups were interacted to produce uniform dispersion of CNCs in the hydrogels. Swelling behavior and compression studies revealed that the increase of the CNCs reinforced the crosslinking. The actuation test of the prepared hydrogels showed that the displacement linearly increased with the voltage, and the immense output displacement was observed at low CNC concentration. The prepared hydrogels are applicable for soft robot actuators and active lens. Full article
(This article belongs to the Special Issue New Composite Hydrogels)
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