Advances in Functional and Intelligent Hydrogels

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Chemistry and Physics".

Deadline for manuscript submissions: 25 May 2025 | Viewed by 918

Special Issue Editors


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Guest Editor
State Key Laboratory of Marine Resource Utilization in South China Sea, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China
Interests: hydrogels; intelligent materials; biomimetic soft actuators; supramolecular self-assembly; nanomaterials; fluorescent materials and displayers; adsorption and separation; degradable polymers, wastewater treatment and environmental protection
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Guest Editor
Taizhou Key Laboratory of Medical Devices and Advanced Materials, Research Institute of Zhejiang University-Taizhou, Taizhou 318000, China
Interests: nanomaterials; hydrogels; self-assembly; polymer composites; advanced oxidation technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, hydrogels with biotissue-like “wet-soft” structures have attracted more and more attention and have been developed for diverse fields including chemical engineering, tissue engineering, life science, environmental protection, and so on. In the past decade, hydrogels with various functions have been widely used for food processing, adsorption/separation, inspection/testing, wastewater treatment, marine antifouling, etc. Recently, hydrogels with intelligent functions have also been utilized for biomimetic actuation, drug-controlled release, wearable sensing, smart displaying, and so on. In addition, more and more functionalized components have been introduced to the hydrogels (such as various biomasses, nano-materials, and fluorescent materials). However, most of the existing hydrogels just have single functions, and many new-functional (especially in intelligent functions) hydrogels are urgently need to vigorously develop, which severely limits their further applications. Nowadays, it is still a great challenge to explore multi-functional and new-functional hydrogels (especially in intelligent hydrogels).

Therefore, this Special Issue, “Advances in Functional and Intelligent Hydrogels,” focuses on the closest research referring to the subject of functional and intelligent hydrogels. We are pleased to invite you to contribute your recent work for this Special Issue. Your works can be recent research articles, reviews, or prospects about the subject of functional or intelligent hydrogels, including but not limiting the scope of inspection/detection, adsorption/separation, anti-bacteria/anti-adhesion, smart displayers/wearable sensors, and biomimetic actuations/deformations.

Prof. Dr. Chunxin Ma
Dr. Zhenzhong Liu
Guest Editors

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Keywords

  • functional/multi-functional hydrogels
  • intelligent/smart hydrogels
  • inspection/detection
  • adsorption/separation
  • anti-bacteria/anti-adhesion
  • biomimetic actuators
  • sensors/displayers

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Published Papers (1 paper)

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Research

19 pages, 5022 KiB  
Article
Anti-Biofouling Polyzwitterion–Poly(amidoxime) Composite Hydrogel for Highly Enhanced Uranium Extraction from Seawater
by Lang Yang, Ye Sun, Yue Sun, Jiawen Wang, Lin Chen, Xueliang Feng, Jinggang Wang, Ning Wang, Dong Zhang and Chunxin Ma
Gels 2024, 10(9), 603; https://doi.org/10.3390/gels10090603 - 22 Sep 2024
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Abstract
Amidoxime-functionalized hydrogels are one of most promising adsorbents for high-efficiency uranium (U) extraction from seawater, but bioadhesion on their surface seriously decreases their adsorption efficiency and largely shortens their service life. Herein, a semi-interpenetrating zwitterion–poly(amidoxime) (ZW-PAO) hydrogel was explored through introducing a PAO [...] Read more.
Amidoxime-functionalized hydrogels are one of most promising adsorbents for high-efficiency uranium (U) extraction from seawater, but bioadhesion on their surface seriously decreases their adsorption efficiency and largely shortens their service life. Herein, a semi-interpenetrating zwitterion–poly(amidoxime) (ZW-PAO) hydrogel was explored through introducing a PAO polymer into a poly [3-(dimethyl 4-vinylbenzyl amino) propyl sulfonate] (PDVBAP) polyzwitterionic (PZW) network via ultraviolet (UV) polymerization. Owing to the anti-polyelectrolyte effect of the PZW network, this ZW-PAO hydrogel can provide excellent super-hydrophilicity in seawater for high-efficiency U-adsorption from seawater. Furthermore, the ZW-PAO hydrogel had outstanding anti-biofouling performance for both highly enhanced U-adsorption and a relatively long working life in natural seawater. As a result, during only 25 days in seawater (without filtering bacteria), the U-uptake amount of this ZW-PAO hydrogel can reach 9.38 mg/g and its average rate can reach 0.375 mg/(g∙day), which is excellent among reported adsorbents. This work has explored a promising hydrogel for high-efficiency U-recovery from natural seawater and will inspire new strategy for U-adsorbing materials. Full article
(This article belongs to the Special Issue Advances in Functional and Intelligent Hydrogels)
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