Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic Innovations

ABSTRACT Hydrogels, as three‐dimensional hydrophilic polymer networks, have been widely utilized in biomedical applications due to their excellent biocompatibility, high water content, and tunable physicochemical properties. However, traditional bulk hydrogels often suffer from limitations such as i...

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Main Authors: Jiacheng Liu, Chengcheng Du, Senrui Liu, Junyan Liu, Xuefeng Luo, Jingdi Zhan, Zhuolin Chen, Zhenglin Zhu, Liangbin Zhou, Zhong Alan Li, Wei Huang, Yiting Lei
Format: Article
Language:English
Published: Wiley 2025-06-01
Series:MedComm – Biomaterials and Applications
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Online Access:https://doi.org/10.1002/mba2.70017
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author Jiacheng Liu
Chengcheng Du
Senrui Liu
Junyan Liu
Xuefeng Luo
Jingdi Zhan
Zhuolin Chen
Zhenglin Zhu
Liangbin Zhou
Zhong Alan Li
Wei Huang
Yiting Lei
author_facet Jiacheng Liu
Chengcheng Du
Senrui Liu
Junyan Liu
Xuefeng Luo
Jingdi Zhan
Zhuolin Chen
Zhenglin Zhu
Liangbin Zhou
Zhong Alan Li
Wei Huang
Yiting Lei
author_sort Jiacheng Liu
collection DOAJ
description ABSTRACT Hydrogels, as three‐dimensional hydrophilic polymer networks, have been widely utilized in biomedical applications due to their excellent biocompatibility, high water content, and tunable physicochemical properties. However, traditional bulk hydrogels often suffer from limitations such as inadequate mechanical strength, slow response to external stimuli, and restricted diffusion efficiency, which hinder their performance in dynamic biological environments. To overcome these challenges, hydrogel microspheres (HMs) have emerged as a promising alternative, which offers advantages such as injectability, high surface‐area‐to‐volume ratio, and tunable functionality. By integrating natural and synthetic materials with advanced fabrication techniques, including microfluidics and emulsification, researchers have achieved precise control over the morphology, size, and bioactivity of HMs. In recent years, stimuli‐responsive HMs have attracted significant attention for their ability to respond intelligently to environmental cues such as pH, reactive oxygen species (ROS), enzymes, and temperature. This enables controlled drug release, enhanced therapeutic precision, and spatiotemporal regulation in biomedical applications. This review systematically summarizes the materials, fabrication strategies, and functional mechanisms of stimuli‐responsive HMs, highlighting their applications in drug delivery, disease treatment, and tissue engineering. Furthermore, key challenges and future perspectives are discussed, which provides insights into how these intelligent HMs can advance personalized medicine and clinical translation.
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spelling doaj-art-a1deccee38fa44e481035de1b8bf42102025-08-20T03:30:09ZengWileyMedComm – Biomaterials and Applications2769-643X2025-06-0142n/an/a10.1002/mba2.70017Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic InnovationsJiacheng Liu0Chengcheng Du1Senrui Liu2Junyan Liu3Xuefeng Luo4Jingdi Zhan5Zhuolin Chen6Zhenglin Zhu7Liangbin Zhou8Zhong Alan Li9Wei Huang10Yiting Lei11Department of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Biomedical Engineering The Chinese University of Hong Kong, NT Hong Kong ChinaDepartment of Biomedical Engineering The Chinese University of Hong Kong, NT Hong Kong ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaDepartment of Orthopaedic Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing ChinaABSTRACT Hydrogels, as three‐dimensional hydrophilic polymer networks, have been widely utilized in biomedical applications due to their excellent biocompatibility, high water content, and tunable physicochemical properties. However, traditional bulk hydrogels often suffer from limitations such as inadequate mechanical strength, slow response to external stimuli, and restricted diffusion efficiency, which hinder their performance in dynamic biological environments. To overcome these challenges, hydrogel microspheres (HMs) have emerged as a promising alternative, which offers advantages such as injectability, high surface‐area‐to‐volume ratio, and tunable functionality. By integrating natural and synthetic materials with advanced fabrication techniques, including microfluidics and emulsification, researchers have achieved precise control over the morphology, size, and bioactivity of HMs. In recent years, stimuli‐responsive HMs have attracted significant attention for their ability to respond intelligently to environmental cues such as pH, reactive oxygen species (ROS), enzymes, and temperature. This enables controlled drug release, enhanced therapeutic precision, and spatiotemporal regulation in biomedical applications. This review systematically summarizes the materials, fabrication strategies, and functional mechanisms of stimuli‐responsive HMs, highlighting their applications in drug delivery, disease treatment, and tissue engineering. Furthermore, key challenges and future perspectives are discussed, which provides insights into how these intelligent HMs can advance personalized medicine and clinical translation.https://doi.org/10.1002/mba2.70017biomedical applicationhydrogel microsphereinjective hydrogelsmart hydrogelstimuli‐responsive
spellingShingle Jiacheng Liu
Chengcheng Du
Senrui Liu
Junyan Liu
Xuefeng Luo
Jingdi Zhan
Zhuolin Chen
Zhenglin Zhu
Liangbin Zhou
Zhong Alan Li
Wei Huang
Yiting Lei
Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic Innovations
MedComm – Biomaterials and Applications
biomedical application
hydrogel microsphere
injective hydrogel
smart hydrogel
stimuli‐responsive
title Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic Innovations
title_full Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic Innovations
title_fullStr Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic Innovations
title_full_unstemmed Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic Innovations
title_short Emerging Trends in Injectable Stimuli‐Responsive Hydrogel Microspheres: Design Strategies and Therapeutic Innovations
title_sort emerging trends in injectable stimuli responsive hydrogel microspheres design strategies and therapeutic innovations
topic biomedical application
hydrogel microsphere
injective hydrogel
smart hydrogel
stimuli‐responsive
url https://doi.org/10.1002/mba2.70017
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