301
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Yu HC, Hao XP, Zhang CW, Zheng SY, Du M, Liang S, Wu ZL, Zheng Q. Engineering Tough Metallosupramolecular Hydrogel Films with Kirigami Structures for Compliant Soft Electronics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103836. [PMID: 34514699 DOI: 10.1002/smll.202103836] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/24/2021] [Indexed: 06/13/2023]
Abstract
A simple and effective approach is demonstrated to fabricate tough metallosupramolecular hydrogel films of poly(acrylic acid) by one-pot photopolymerization of the precursor solution in the presence of Zr4+ ions that form coordination complexes with the carboxyl groups and serve as the physical crosslinks of the matrix. Both as-prepared and equilibrated hydrogel films are transparent, tough, and stable over a wide range of temperature, ionic strength, and pH. The thickness of the films can be easily tailored with minimum value of ≈7 μm. Owing to the fast polymerization and gelation process, kirigami structures can be facilely encoded to the gel films by photolithographic polymerization, affording versatile functions such as additional stretchability and better compliance of the planar films to encapsulate objects with sophisticated geometries that are important for the design of soft electronics. By stencil printing of liquid metal on the hydrogel film with a kirigami structure, the integrated soft electronics shows good compliance to cover curved surfaces and high sensitivity to monitor human motions. Furthermore, this strategy is applied to diverse natural and synthetic macromolecules containing carboxyl groups to develop tough hydrogel films, which will open opportunities for the applications of hydrogel films in biomedical and engineering fields.
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Affiliation(s)
- Hai Chao Yu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xing Peng Hao
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chuan Wei Zhang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Si Yu Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | | | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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302
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Bao Y, Ertbjerg P, Estévez M, Yuan L, Gao R. Freezing of meat and aquatic food: Underlying mechanisms and implications on protein oxidation. Compr Rev Food Sci Food Saf 2021; 20:5548-5569. [PMID: 34564951 DOI: 10.1111/1541-4337.12841] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/03/2021] [Accepted: 08/24/2021] [Indexed: 12/24/2022]
Abstract
Over the recent decades,protein oxidation in muscle foods has gained increasing research interests as it is known that protein oxidation can affect eating quality and nutritional value of meat and aquatic products. Protein oxidation occurs during freezing/thawing and frozen storage of muscle foods, leading to irreversible physicochemical changes and impaired quality traits. Controlling oxidative damage to muscle foods during such technological processes requires a deeper understanding of the mechanisms of freezing-induced protein oxidation. This review focus on key physicochemical factors in freezing/thawing and frozen storage of muscle foods, such as formation of ice crystals, freeze concentrating and macromolecular crowding effect, instability of proteins at the ice-water interface, freezer burn, lipid oxidation, and so on. Possible relationships between these physicochemical factors and protein oxidation are thoroughly discussed. In addition, the occurrence of protein oxidation, the impact on eating quality and nutrition, and controlling methods are also briefly reviewed. This review will shed light on the complicated mechanism of protein oxidation in frozen muscle foods.
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Affiliation(s)
- Yulong Bao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Per Ertbjerg
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Mario Estévez
- Meat and Meat Products Research Institute, University of Extremadura, Cáceres, Spain
| | - Li Yuan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Ruichang Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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303
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Yu WW, Xu WZ, Wei YC, Liao S, Luo MC. Mechanically Robust Elastomers Enabled by a Facile Interfacial Interactions-Driven Sacrificial Network. Macromol Rapid Commun 2021; 42:e2100509. [PMID: 34562290 DOI: 10.1002/marc.202100509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/11/2021] [Indexed: 11/08/2022]
Abstract
Strength and toughness are usually mutually exclusive for materials. The sacrificial bond strategy is used to address the trade-off between strength and toughness. However, the complex construction process of sacrificial network limits the application of sacrificial network. This work develops a facile strategy to construct an interfacial interactions-driven sacrificial network. The authors' group finds that there are the interfacial interactions between arginines (A) aggregates and molecular chains. Such interfacial interactions result in the mechanical properties of samples having a strong dependence on extension rates, which shows that A aggregates construct a network structure by interfacial interactions. The interfacial interactions between A aggregates and chains improve the strength of samples; while the A aggregate network driven by interfacial interactions preferentially ruptures to dissipate large energy for the improvement of fracture toughness, which can be considered as a sacrificial network. Therefore, their designed elastomers have both high strength and high toughness. This work provides an easier strategy for the construction of sacrificial networks, which can promote the industrial application of sacrificial networks in elastomer materials.
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Affiliation(s)
- Wei-Wei Yu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Wen-Zhe Xu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Yan-Chan Wei
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Shuangquan Liao
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China.,Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing, 100029, China
| | - Ming-Chao Luo
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China.,Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing, 100029, China
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304
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Lyu Q, Gong S, Yin J, Dyson JM, Cheng W. Soft Wearable Healthcare Materials and Devices. Adv Healthc Mater 2021; 10:e2100577. [PMID: 34019737 DOI: 10.1002/adhm.202100577] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/25/2021] [Indexed: 12/16/2022]
Abstract
In spite of advances in electronics and internet technologies, current healthcare remains hospital-centred. Disruptive technologies are required to translate state-of-art wearable devices into next-generation patient-centered diagnosis and therapy. In this review, recent advances in the emerging field of soft wearable materials and devices are summarized. A prerequisite for such future healthcare devices is the need of novel materials to be mechanically compliant, electrically conductive, and biologically compatible. It is begun with an overview of the two viable design strategies reported in the literatures, which is followed by description of state-of-the-art wearable healthcare devices for monitoring physical, electrophysiological, chemical, and biological signals. Self-powered wearable bioenergy devices are also covered and sensing systems, as well as feedback-controlled wearable closed-loop biodiagnostic and therapy systems. Finally, it is concluded with an overall summary and future perspective.
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Affiliation(s)
- Quanxia Lyu
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
| | - Shu Gong
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
| | - Jialiang Yin
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
| | - Jennifer M. Dyson
- Department of Biochemistry & Molecular Biology Biomedicine Discovery Institute Clayton VIC 3800 Australia
- Faculty of Engineering Monash Institute of Medical Engineering (MIME) Monash University Clayton VIC 3800 Australia
| | - Wenlong Cheng
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
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305
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Zhu CN, Zheng SY, Qiu HN, Du C, Du M, Wu ZL, Zheng Q. Plastic-Like Supramolecular Hydrogels with Polyelectrolyte/Surfactant Complexes as Physical Cross-links. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00835] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chao Nan Zhu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Si Yu Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hao Nan Qiu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Cong Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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306
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Li H, Wu G, Weng Z, Sun H, Nistala R, Zhang Y. Microneedle-Based Potentiometric Sensing System for Continuous Monitoring of Multiple Electrolytes in Skin Interstitial Fluids. ACS Sens 2021; 6:2181-2190. [PMID: 34038108 DOI: 10.1021/acssensors.0c02330] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Electrolytes play a pivotal role in regulating cardiovascular functions, hydration, and muscle activation. The current standards for monitoring electrolytes involve periodic sampling of blood and measurements using laboratory techniques, which are often uncomfortable/inconvenient to the subjects and add considerable expense to the management of their underlying disease conditions. The wide range of electrolytes in skin interstitial fluids (ISFs) and their correlations with those in plasma create exciting opportunities for applications such as electrolyte and circadian metabolism monitoring. However, it has been challenging to monitor these electrolytes in the skin ISFs. In this study, we report a minimally invasive microneedle-based potentiometric sensing system for multiplexed and continuous monitoring of Na+ and K+ in the skin ISFs. The potentiometric sensing system consists of a miniaturized stainless-steel hollow microneedle to prevent sensor delamination and a set of modified microneedle electrodes for multiplex monitoring. We demonstrate the measurement of Na+ and K+ in artificial ISFs with a fast response time, excellent reversibility and repeatability, adequate selectivity, and negligible potential interferences upon the addition of a physiologically relevant concentration of metabolites, dietary biomarkers, and nutrients. In addition, the sensor maintains the sensitivity after multiple insertions into the chicken skin model. Furthermore, the measurements in artificial ISFs using calibrated sensors confirm the accurate measurements of physiological electrolytes in artificial ISFs. Finally, the skin-mimicking phantom gel and chicken skin model experiments demonstrate the sensor's potential for minimally invasive monitoring of electrolytes in skin ISFs. The developed sensor platform can be adapted for a wide range of other applications, including real-time monitoring of nutrients, metabolites, and proteins.
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Affiliation(s)
- Huijie Li
- Department of Biomedical Engineering, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Guangfu Wu
- Department of Biomedical Engineering, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Zhengyan Weng
- Department of Biomedical Engineering, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - He Sun
- Department of Biomedical Engineering, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ravi Nistala
- Division of Nephrology, Department of Medicine, University of Missouri-Columbia, Columbia, Missouri 65212, United States
| | - Yi Zhang
- Department of Biomedical Engineering, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
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