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Meng N, Hu Y, Zhang Y, Cheng N, Lin Y, Ding C, Chen Q, Fu S, Li Z, Wang X, Yu J, Ding B. Highly Permeable and Liquid-Repellent Textiles with Micro-Nano-Networks for Medical and Health Protection. NANO-MICRO LETTERS 2025; 17:208. [PMID: 40202548 PMCID: PMC11982006 DOI: 10.1007/s40820-025-01716-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2024] [Accepted: 02/28/2025] [Indexed: 04/10/2025]
Abstract
Current protective clothing often lacks sufficient comfort to ensure efficient performance of healthcare workers. Developing protective textiles with high air and moisture permeability is a potential and effective solution to discomfort of medical protective clothing. However, realizing the facile production of a protective textile that combines safety and comfort remains a challenge. Herein, we report the fabrication of highly permeable protective textiles (HPPT) with micro/nano-networks, using non-solvent induced phase separation synergistically driven by CaCl2 and fluorinated polyurethane, combined with spraying technique. The HPPT demonstrates excellent liquid repellency and comfort, ensuring high safety and a dry microenvironment for the wearer. The textile exhibits not only a high hydrostatic pressure (12.86 kPa) due to its tailored small mean pore size (1.03 μm) and chemical composition, but also demonstrates excellent air permeability (14.24 mm s-1) and moisture permeability (7.92 kg m-2 d-1) owing to the rational combination of small pore size and high porosity (69%). The HPPT offers superior comfort compared to the commercially available protective materials. Additionally, we elucidated a molding mechanism synergistically inducted by diffusion-dissolution-phase separation. This research provides an innovative perspective on enhancing the comfort of medical protective clothing and offers theoretical support for regulating of pore structure during phase separations.
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Affiliation(s)
- Na Meng
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Yuen Hu
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Yufei Zhang
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Ningbo Cheng
- College of Fashion and Design, Donghua University, Shanghai, 200051, People's Republic of China
| | - Yanyan Lin
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Chengfeng Ding
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Qingyu Chen
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Shaoju Fu
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Zhaoling Li
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Xianfeng Wang
- State Key Laboratory of Advanced Fiber Materials, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China.
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, People's Republic of China.
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, People's Republic of China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, People's Republic of China.
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Zhang Y, Lv J, Qiu Z, Chen L. Influence of carboxyl content on the rheological properties and printability of oxidized starch for 3D printing applications. Int J Biol Macromol 2025; 289:138794. [PMID: 39675598 DOI: 10.1016/j.ijbiomac.2024.138794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2024] [Revised: 12/01/2024] [Accepted: 12/13/2024] [Indexed: 12/17/2024]
Abstract
With the rapid development of 3D printing technology, the development of starch gels based on 3D printing with excellent printing properties has attracted great attention. This study successfully prepared four types of oxidized starch (OMS) with varying carboxyl group contents (0.203 %, 0.612 %, 1.043 %, and 1.278 %) by controlling the amount of sodium hypochlorite. Rheological analysis of these OMS gels revealed typical shear-thinning behavior and excellent structural recovery during heating shear across various concentrations. As the concentration of OMS increased, key parameters such as consistency index (K), storage modulus (G'), yield stress (τy), and flow stress (τf) also increased, signifying enhanced molecular chain entanglement and densification with reduced digestibility. Conversely, at a constant concentration, increasing carboxyl group content led to decreased K, G', τy, and τf values due to molecular chain degradation, resulting in diminished aggregation and increased network pore size. Notably, OMS gels demonstrated favorable printability within a specific range of G' (4314.0-6690.0 Pa), τy (1254.8-2697.5 Pa), and τf (822.3-2296.3 Pa). Meanwhile, oxidized starch (OMS2 and OMS3) gels exhibited exceptional printability, attributed to appropriate molecular chain length and carboxyl content, which promoted sufficient physical crosslinking. These findings provided theoretical insights and foundational data for developing 3D printable starch-based materials.
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Affiliation(s)
- Yi Zhang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou 510640, China
| | - Jiayu Lv
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou 510640, China
| | - Zhipeng Qiu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou 510640, China.
| | - Ling Chen
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou 510640, China.
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Lupu A, Bercea M, Avadanei M, Gradinaru LM, Nita LE, Gradinaru VR. Temperature Sensitive Pluronic F127‐Based Gels Incorporating Natural Therapeutic Agents. MACROMOLECULAR MATERIALS AND ENGINEERING 2024. [DOI: 10.1002/mame.202400341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2024] [Indexed: 01/03/2025]
Abstract
AbstractPluronic F127 copolymer is used as the main component to design injectable gels for therapeutic applications. Xanthan gum is added as an excipient to improve gel properties under physiological conditions. A polyphenol bioactive compound, curcumin, is selected as therapeutic agent with beneficial effects on metabolism and many diseases. The encapsulation efficiency and stability of formulations are investigated in an aqueous environment and in acetic acid solutions. The interactions between the hydrophobic polyphenol and the polymer matrix are investigated through rheology, DLS, and FTIR spectroscopy. The viscoelasticity of gels, correlated with the network structure, is influenced by xanthan gum or acetic acid addition. FTIR analysis of curcumin incorporated into the gel provides the evidence for interaction of the phenyl rings of both keto‐enol and di‐keto tautomers with the polymeric matrix. The spherical curcumin‐encapsulated micelles provided antioxidant properties. The kinetics of curcumin release from the Pluronic F127‐based gels suggests anomalous transport phenomena controlled by diffusion through the network and hydrodynamic effects. Both gel and lyophilized form of micellar encapsulated curcumin composites exhibited good stability for long‐term storage under ambient conditions.
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Affiliation(s)
- Alexandra Lupu
- “Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Maria Bercea
- “Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Mihaela Avadanei
- “Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Luiza Madalina Gradinaru
- “Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Loredana Elena Nita
- “Petru Poni” Institute of Macromolecular Chemistry 41‐A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Vasile Robert Gradinaru
- Faculty of Chemistry Alexandru Ioan Cuza University of Iasi 11 Carol I Bd. Iasi 700506 Romania
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Ghilan A, Bercea M, Rusu AG, Simionescu N, Serban AM, Bargan A, Nita LE, Chiriac AP. Self-healing injectable hydrogels incorporating hyaluronic acid and phytic acid: Rheological insights and implications for regenerative medicine. Int J Biol Macromol 2024; 279:135056. [PMID: 39187106 DOI: 10.1016/j.ijbiomac.2024.135056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 08/21/2024] [Accepted: 08/23/2024] [Indexed: 08/28/2024]
Abstract
Eying the increasing impact of hyaluronic acid (HA) and its multifaceted applications, this study employs a non-toxic, one-pot strategy to develop injectable, self-healing hydrogels for biomedical applications. Phytic acid (PA), a plant-derived organic acid with high biocompatibility and numerous hydroxyl groups, can act as a cross-linking agent to form hydrogen-bonded networks with the HA chains. The study examined the optimal mass ratio of HA to PA to achieve superior hydrogel performance. Fourier transform infrared spectroscopy, rheological studies, and thermal analysis confirmed the successful formation of the hydrogels, which exhibited injectability, rapid self-healing, malleability, and elasticity. The investigation of different compositions revealed a sensitive influence of PA on the self-assembly phenomena of HA during flow. SEM cross-section images of the freeze-dried gels revealed a porous surface in the form of an interconnected network of microchannels. In addition, the hydrogel exhibits good tissue adhesion properties and promotes cell proliferation in biocompatibility tests on human gingival fibroblasts. The significance of this study lies in the ability of the proposed materials to be injected, to conform to the complex 3D structure of host tissues as well as their ability to recover after damage, indicating significant potential as scaffolds for wound healing.
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Affiliation(s)
- Alina Ghilan
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Maria Bercea
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Alina G Rusu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Natalia Simionescu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Alexandru M Serban
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Alexandra Bargan
- Department of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Loredana E Nita
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Aurica P Chiriac
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
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5
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Gulati A, Han A, Colby RH, Lopez CG. Rheological Properties of Concentrated Sodium Polystyrenesulfonate in Aqueous Salt Solutions. Macromolecules 2024; 57:7253-7262. [DOI: 10.1021/acs.macromol.4c00542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2025]
Affiliation(s)
- Anish Gulati
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, Germany, European Union
| | - Aijie Han
- Department of Material Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ralph H. Colby
- Department of Material Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Carlos G. Lopez
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, Germany, European Union
- Department of Material Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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6
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Bercea M. Recent Advances in Poly(vinyl alcohol)-Based Hydrogels. Polymers (Basel) 2024; 16:2021. [PMID: 39065336 PMCID: PMC11281164 DOI: 10.3390/polym16142021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Poly(vinyl alcohol) (PVA) is a versatile synthetic polymer, used for the design of hydrogels, porous membranes and films. Its solubility in water, film- and hydrogel-forming capabilities, non-toxicity, crystallinity and excellent mechanical properties, chemical inertness and stability towards biological fluids, superior oxygen and gas barrier properties, good printability and availability (relatively low production cost) are the main aspects that make PVA suitable for a variety of applications, from biomedical and pharmaceutical uses to sensing devices, packaging materials or wastewater treatment. However, pure PVA materials present low stability in water, limited flexibility and poor biocompatibility and biodegradability, which restrict its use alone in various applications. PVA mixed with other synthetic polymers or biomolecules (polysaccharides, proteins, peptides, amino acids etc.), as well as with inorganic/organic compounds, generates a wide variety of materials in which PVA's shortcomings are considerably improved, and new functionalities are obtained. Also, PVA's chemical transformation brings new features and opens the door for new and unexpected uses. The present review is focused on recent advances in PVA-based hydrogels.
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Affiliation(s)
- Maria Bercea
- "Petru Poni" Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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Nita LE, Nacu I, Ghilan A, Rusu AG, Şerban AM, Bercea M, Verestiuc L, Chiriac AP. Evaluation of hyaluronic acid-polymacrolactone hydrogels with 3D printing capacity. Int J Biol Macromol 2024; 256:128279. [PMID: 37992923 DOI: 10.1016/j.ijbiomac.2023.128279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
The implementation of personalized patches, tailored to individual genetic profiles and containing specific amounts of bioactive substances, has the potential to produce a transformative impact within the medical sector. There are several methods of designing scaffolds in the context of personalized medicine, with three-dimensional (3D) printing emerging as a pivotal technique. This innovative approach can be used to construct a wide variety of pharmaceutical dosage forms, characterized by variations in shape, release profile, and drug combinations, allowing precise dose individualization and the incorporation of multiple therapeutic agents. To expand the potential and applicability of personalized medicine, particularly with regards to indomethacin (IND), a drug necessitating individualized dosing, this study proposes the development of new transdermal delivery systems for IND based on hyaluronic acid and a polylactone synthesized within our research group, namely poly(ethylene brasilate-co-squaric acid) (PEBSA). The obtained systems were characterized in terms of their swelling capacity, rheological behavior, and morphological characteristics that highlighted the formation of stable three-dimensional networks. To impart specific shape and geometry to the structures, multi-component systems based on PEBSA, HA, and methacrylate gelatin were obtained. The scaffolds were loaded with IND and subsequently 3D printed. The release capacity of IND and its dependence on the relative ratios of the components comprising the scaffold composition were highlighted. The cytocompatibility studies revealed the successful development of biocompatible and noncytotoxic systems.
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Affiliation(s)
- Loredana E Nita
- "Petru Poni" Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania.
| | - Isabella Nacu
- "Petru Poni" Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Alina Ghilan
- "Petru Poni" Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Alina G Rusu
- "Petru Poni" Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Alexandru M Şerban
- "Petru Poni" Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Maria Bercea
- "Petru Poni" Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Liliana Verestiuc
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Aurica P Chiriac
- "Petru Poni" Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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Bercea M. Rheology as a Tool for Fine-Tuning the Properties of Printable Bioinspired Gels. Molecules 2023; 28:2766. [PMID: 36985738 PMCID: PMC10058016 DOI: 10.3390/molecules28062766] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/12/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Over the last decade, efforts have been oriented toward the development of suitable gels for 3D printing, with controlled morphology and shear-thinning behavior in well-defined conditions. As a multidisciplinary approach to the fabrication of complex biomaterials, 3D bioprinting combines cells and biocompatible materials, which are subsequently printed in specific shapes to generate 3D structures for regenerative medicine or tissue engineering. A major interest is devoted to the printing of biomimetic materials with structural fidelity after their fabrication. Among some requirements imposed for bioinks, such as biocompatibility, nontoxicity, and the possibility to be sterilized, the nondamaging processability represents a critical issue for the stability and functioning of the 3D constructs. The major challenges in the field of printable gels are to mimic at different length scales the structures existing in nature and to reproduce the functions of the biological systems. Thus, a careful investigation of the rheological characteristics allows a fine-tuning of the material properties that are manufactured for targeted applications. The fluid-like or solid-like behavior of materials in conditions similar to those encountered in additive manufacturing can be monitored through the viscoelastic parameters determined in different shear conditions. The network strength, shear-thinning, yield point, and thixotropy govern bioprintability. An assessment of these rheological features provides significant insights for the design and characterization of printable gels. This review focuses on the rheological properties of printable bioinspired gels as a survey of cutting-edge research toward developing printed materials for additive manufacturing.
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Affiliation(s)
- Maria Bercea
- "Petru Poni" Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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9
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The Effect of Shear on the Properties of an Associated Polymer Solution for Oil Displacement. Polymers (Basel) 2023; 15:polym15030616. [PMID: 36771917 PMCID: PMC9919724 DOI: 10.3390/polym15030616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023] Open
Abstract
Polymer flooding is one of the techniques used to enhance oil recovery from depleted hydrocarbon reservoirs. Although this technology is popular for this application, the shearing effect in the injection process causes poor performance, which is an obstacle to meeting the needs of the formation. An experimental evaluation of the rheological properties, viscoelasticity, hydrodynamic size, static adsorption, and seepage characteristics of the associated polymer solution before and after shearing was conducted to determine the influence of shearing on the polymer solution. The results show that the effect of shear on the polymer was irreversible, and the properties of the polymer solution damaged by shear were attenuated. After the critical associating concentration, the associated polymer can recover its solution properties through hydrophobic association, which can improve the shear resistance of the polymer solution and make its own rheological law and reduce the viscoelastic change. Although the hydrodynamic size, viscoelasticity, and adsorption capacity of the polymer solution after shear failure decreased, strong flow resistance during porous media seepage and mobility control was achieved. Improving the shear resistance of the polymer solution by increasing the intermolecular force is proposed to develop new polymer systems for subsequent oil displacement.
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Bercea M. Bioinspired Hydrogels as Platforms for Life-Science Applications: Challenges and Opportunities. Polymers (Basel) 2022; 14:polym14122365. [PMID: 35745941 PMCID: PMC9229923 DOI: 10.3390/polym14122365] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 12/13/2022] Open
Abstract
Hydrogels, as interconnected networks (polymer mesh; physically, chemically, or dynamic crosslinked networks) incorporating a high amount of water, present structural characteristics similar to soft natural tissue. They enable the diffusion of different molecules (ions, drugs, and grow factors) and have the ability to take over the action of external factors. Their nature provides a wide variety of raw materials and inspiration for functional soft matter obtained by complex mechanisms and hierarchical self-assembly. Over the last decade, many studies focused on developing innovative and high-performance materials, with new or improved functions, by mimicking biological structures at different length scales. Hydrogels with natural or synthetic origin can be engineered as bulk materials, micro- or nanoparticles, patches, membranes, supramolecular pathways, bio-inks, etc. The specific features of hydrogels make them suitable for a wide variety of applications, including tissue engineering scaffolds (repair/regeneration), wound healing, drug delivery carriers, bio-inks, soft robotics, sensors, actuators, catalysis, food safety, and hygiene products. This review is focused on recent advances in the field of bioinspired hydrogels that can serve as platforms for life-science applications. A brief outlook on the actual trends and future directions is also presented.
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Affiliation(s)
- Maria Bercea
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
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