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Zhang C, Zhang Z, Qi Y. Preparation, Structure, and Properties of Polystyrene-Microsphere-Reinforced PEG-Based Hydrogels. Polymers (Basel) 2021; 13:2605. [PMID: 34451147 PMCID: PMC8398237 DOI: 10.3390/polym13162605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/22/2021] [Accepted: 08/03/2021] [Indexed: 11/17/2022] Open
Abstract
To improve the mechanical strength and practicability of hydrogels, polystyrene microspheres with core-shell structure were prepared by the soap-free emulsion polymerization, polyethylene glycol hydrogels with polystyrene microspheres by the in-situ polymerization. The structure, morphology, roughness, swelling property, surface energy, and mechanical properties of the microspheres and hydrogels were investigated by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, confocal laser microscopy, swelling test, contact angle measurement, and compression test. The results showed that they have certain swelling capacity and excellent mechanical properties, and can change from hydrophobic to hydrophilic surface. The reason is that the hydrophilic chain segment can migrate, enrich, and form a hydration layer on the surface after soaking for a certain time. Introducing proper content of polystyrene microspheres into the hydrogel, the compressive strength and swelling degree improved obviously. Increasing the content of polystyrene microspheres, the surface energy of the hydrogels decreased gradually.
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Affiliation(s)
- Chen Zhang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Zhanping Zhang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Yuhong Qi
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China
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2
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DeFlorio W, Liu S, White AR, Taylor TM, Cisneros-Zevallos L, Min Y, Scholar EMA. Recent developments in antimicrobial and antifouling coatings to reduce or prevent contamination and cross-contamination of food contact surfaces by bacteria. Compr Rev Food Sci Food Saf 2021; 20:3093-3134. [PMID: 33949079 DOI: 10.1111/1541-4337.12750] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/28/2021] [Accepted: 03/06/2021] [Indexed: 12/29/2022]
Abstract
Illness as the result of ingesting bacterially contaminated foodstuffs represents a significant annual loss of human quality of life and economic impact globally. Significant research investment has recently been made in developing new materials that can be used to construct food contacting tools and surfaces that might minimize the risk of cross-contamination of bacteria from one food item to another. This is done to mitigate the spread of bacterial contamination and resultant foodborne illness. Internet-based literature search tools such as Web of Science, Google Scholar, and Scopus were utilized to investigate publishing trends within the last 10 years related to the development of antimicrobial and antifouling surfaces with potential use in food processing applications. Technologies investigated were categorized into four major groups: antimicrobial agent-releasing coatings, contact-based antimicrobial coatings, superhydrophobic antifouling coatings, and repulsion-based antifouling coatings. The advantages for each group and technical challenges remaining before wide-scale implementation were compared. A diverse array of emerging antimicrobial and antifouling technologies were identified, designed to suit a wide range of food contact applications. Although each poses distinct and promising advantages, significant further research investment will likely be required to reliably produce effective materials economically and safely enough to equip large-scale operations such as farms, food processing facilities, and kitchens.
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Affiliation(s)
- William DeFlorio
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, USA
| | - Shuhao Liu
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, USA
| | - Andrew R White
- Department of Chemical and Environmental Engineering, University of California, Riverside, California, USA
| | | | - Luis Cisneros-Zevallos
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas, USA.,Department of Horticultural Sciences, Texas A&M University, College Station, Texas, USA
| | - Younjin Min
- Department of Chemical and Environmental Engineering, University of California, Riverside, California, USA
| | - Ethan M A Scholar
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, USA.,Department of Materials Science and Engineering, Texas A&M University, College Station, Texas, USA
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3
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Barrett-Catton E, Ross ML, Asuri P. Multifunctional Hydrogel Nanocomposites for Biomedical Applications. Polymers (Basel) 2021; 13:856. [PMID: 33799539 PMCID: PMC8001467 DOI: 10.3390/polym13060856] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 02/06/2023] Open
Abstract
Hydrogels are used for various biomedical applications due to their biocompatibility, capacity to mimic the extracellular matrix, and ability to encapsulate and deliver cells and therapeutics. However, traditional hydrogels have a few shortcomings, especially regarding their physical properties, thereby limiting their broad applicability. Recently, researchers have investigated the incorporation of nanoparticles (NPs) into hydrogels to improve and add to the physical and biochemical properties of hydrogels. This brief review focuses on papers that describe the use of nanoparticles to improve more than one property of hydrogels. Such multifunctional hydrogel nanocomposites have enhanced potential for various applications including tissue engineering, drug delivery, wound healing, bioprinting, and biowearable devices.
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Affiliation(s)
| | | | - Prashanth Asuri
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053, USA; (E.B.-C.); (M.L.R.)
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4
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Li J, Jia X, Yin L. Hydrogel: Diversity of Structures and Applications in Food Science. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2020.1858313] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jinlong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, P.R. China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, P.R. China
| | - Xin Jia
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
| | - Lijun Yin
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
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Feng Y, Yin J, Liu S, Wang Y, Li B, Jiao T. Facile Synthesis of Ag/Pd Nanoparticle -Loaded Poly(ethylene imine) Composite Hydrogels with Highly Efficient Catalytic Reduction of 4-Nitrophenol. ACS OMEGA 2020; 5:3725-3733. [PMID: 32118188 PMCID: PMC7045507 DOI: 10.1021/acsomega.9b04408] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 02/03/2020] [Indexed: 05/17/2023]
Abstract
Poly(ethylene imine) (PEI) has abundant amino groups in a macromolecular chain and can be used as a graft source for metal nanocomposites, which shows excellent ability to form stable complexes with heavy metal ions. In this work, a simple and convenient method was used to make PEI into a stable hydrogel with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide-N-hydroxysuccinimide and subsequently coprecipitate with silver nitrate solution or palladium chloride solution to form metal-loaded composite hydrogels. In addition, the characterizations of composite hydrogels were investigated by scanning electron microscopy, specific surface area tests (Brunauer-Emmett-Teller), X-ray photoelectron spectroscopy, and ultraviolet spectroscopy. The properties of composite hydrogels on the catalytic reduction of 4-nitrophenol were studied. The results showed that the composite hydrogels could be easily separated from the water environment, which indicated the large-scale potential application in organic catalytic degradation and wastewater treatment.
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Affiliation(s)
- Yao Feng
- Hebei
Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy
Metal Deep-Remediation in Water and Resource Reuse, School of Environmental
and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China
- State
Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P.
R. China
| | - Juanjuan Yin
- Hebei
Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy
Metal Deep-Remediation in Water and Resource Reuse, School of Environmental
and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Shufeng Liu
- Key
Laboratory of Optic-electric Sensing and Analytical Chemistry for
Life Science, Ministry of Education, College of Chemistry and Molecular
Engineering, Qingdao University of Science
and Technology, 53 Zhengzhou Road, Qingdao 266042, P. R. China
| | - Yuying Wang
- School
of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Bingfan Li
- Shandong
Key Laboratory of Oil & Gas Storage and Transportation Safety, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Tifeng Jiao
- Hebei
Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy
Metal Deep-Remediation in Water and Resource Reuse, School of Environmental
and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China
- State
Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P.
R. China
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Jiang D, Zhang Y, Zhang F, Liu Z, Han J, Wu X. Antimicrobial and antifouling nanocomposite hydrogels containing polythioether dendron: high-loading silver nanoparticles and controlled particle release. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3967-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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