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Gong M, Wang X, Wu Z, Yue L, Chen Q, Li H, Lin X, Zhang L, Wang D. Nature-Inspired Molecular-Crowding Enabling Wide-Humidity Range Applicable, Anti-Freezing, and Robust Zwitterionic Hydrogels for On-Skin Electronics. Small 2024:e2400161. [PMID: 38431936 DOI: 10.1002/smll.202400161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Indexed: 03/05/2024]
Abstract
Hydrogels are currently in the limelight for applications in soft electronics but they suffer from the tendency to lose water or freeze when exposed to dry environments or low temperatures. Molecular crowding is a prevalent occurrence in living cells, in which molecular crowding agents modify the hydrogen bonding structure, causing a significant reduction in water activity. Here, a wide-humidity range applicable, anti-freezing, and robust hydrogel is developed through the incorporation of natural amino acid proline (Pro) and conductive MXene into polyvinyl alcohol (PVA) hydrogel networks. Theoretical calculations reveal that Pro can transform "free water" into "locked water" via the molecular-crowding effect, thereby suppressing water evaporation and ice forming. Accordingly, the prepared hydrogel exhibits high water retention capability, with 77% and 55% being preserved after exposure to 20 °C, 28% relative humidity (RH) and 35 °C, 90% RH for 12 h. Meanwhile, Pro lowers the freezing temperature of the hydrogel to 34 °C and enhances its stretchability and strength. Finally, the PVA/Pro/MXene hydrogels are assembled as multifunctional on-skin strain sensors and conductive electrodes to monitor human motions and detect tiny electrophysiological signals. Collectively, this work provides a molecular crowding strategy that will motivate researchers to develop more advanced hydrogels for versatile applications.
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Affiliation(s)
- Min Gong
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaobo Wang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Zhen Wu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Liancong Yue
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qiuji Chen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hejian Li
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiang Lin
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Liang Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Dongrui Wang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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Lima LEDM, Maciel BLL, Passos TS. Oil Frying Processes and Alternative Flour Coatings: Physicochemical, Nutritional, and Sensory Parameters of Meat Products. Foods 2024; 13:512. [PMID: 38397489 PMCID: PMC10888343 DOI: 10.3390/foods13040512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 02/25/2024] Open
Abstract
The frying process changes can be desirable and undesirable, involving the physicochemical, nutritional, and sensory aspects, depending on the food and oil properties and the frying process. In this context, alternative flours emerge as a strategy for adding value to the food since they are rich in fiber, vitamins, and minerals, contributing to the variability of ingredients and the full use of food, including residues such as seeds and husks. This narrative review aims to gather current scientific data addressing the alternative flour coatings on breaded meat, mainly chicken, products to evaluate the effects on fried products' nutritional value, physicochemical parameters, and sensory attributes. Scopus, Science Direct, Springer, and Web of Science search bases were used. This review showed that alternative flours (from cereals, legumes, fruits, and vegetables) used as coatings increase water retention and reduce oil absorption during frying, increase fibers and micronutrient content, which are not present in sufficient quantities in commonly used flours due to the refining process. These flours also reduce gluten consumption by sensitive individuals in addition to favoring the development of desirable sensory characteristics to attract consumers. Therefore, frying processes in oil promote a reduction in humidity, an increase in oil absorption and energy content, and a decrease in vitamin content. In this context, coatings based on alternative flours can reduce these adverse effects of the frying process.
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Affiliation(s)
- Luzia Ellen de Mendonça Lima
- Department of Nutrition, Health Sciences Center, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
| | - Bruna Leal Lima Maciel
- Nutrition Postgraduate Program, Health Sciences Center, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
| | - Thaís Souza Passos
- Nutrition Postgraduate Program, Health Sciences Center, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
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3
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Guerle-Cavero R, Balfagón-Costa A. Study of Elastin, Hydrolyzed Collagen and Collagen-like Products in a Tri-Layered Chitosan Membrane to Test Anti-Aging Skin Properties. Int J Mol Sci 2023; 24:11016. [PMID: 37446192 DOI: 10.3390/ijms241311016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
The use of animal testing in the cosmetic industry is already prohibited in more than 40 countries, including those of the EU. The pressure for it to be banned worldwide in the future is increasing, so the need for animal alternatives is of great interest today. In addition, using animals and humans in scientific research is ethically reprehensible. This study aimed to prove some of the anti-aging properties of elastin (EL), hydrolyzed collagen (HC), and two vegan collagen-like products (Veg Col) in a tri-layered chitosan membrane that was ionically crosslinked with sodium tripolyphosphate (TPP). In the first approach, as a way of representing different layers of a biological system, such as the epidermis and the two dermis sublayers, EL, HC, or Veg Col were independently introduced into the two inner layers (2L(i+b)). Their effects were compared with those of their introduction into three layers (3L). Different experiments were performed on the membrane to test its elasticity, hydration, moisture retention, and pore reduction at different concentrations of EL, HC, and Veg Col, and the results were normalized vs. a blank membrane. This new alternative to animal or human testing can be suitable for proving certain efficacy claims for active ingredients or products in the pharmaceutical, nutritional, and cosmetic fields.
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Affiliation(s)
- Rocío Guerle-Cavero
- Pharmaceutical Chemistry Research Group, Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain
| | - Albert Balfagón-Costa
- Pharmaceutical Chemistry Research Group, Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain
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Kalitukha L, Bleha R, Synytsya A, Kraska J, Sari M. Hydrocolloids from the Mushroom Auricularia heimuer: Composition and Properties. J Fungi (Basel) 2023; 9:681. [PMID: 37367617 DOI: 10.3390/jof9060681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/28/2023] Open
Abstract
The ear- to shell-shaped fruiting bodies of the genus Auricularia are widely used as food and in traditional medicinal remedies. This study was primarily focused on the composition, properties and potential use of the gel-forming extract from Auricularia heimuer. The dried extract contained 50% soluble homo- and heteropolysaccharides, which were mainly composed of mannose and glucose, acetyl residues, glucuronic acid and a small amount of xylose, galactose, glucosamine, fucose, arabinose and rhamnose. The minerals observed in the extract included approximately 70% potassium followed by calcium. Among the fatty and amino acids, 60% unsaturated fatty acids and 35% essential amino acids could be calculated. At both acidic (pH 4) and alkaline (pH 10) conditions, the thickness of the 5 mg/mL extract did not change in a temperature range from -24 °C to room temperature, but decreased statistically significantly after storage at elevated temperature. At neutral pH, the studied extract demonstrated good thermal and storage stability, as well as a moisture retention capacity comparable to the high molecular weight sodium hyaluronate, a well-known moisturizer. Hydrocolloids that can be sustainably produced from Auricularia fruiting bodies offer great application potential in the food and cosmetic industries.
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Affiliation(s)
| | - Roman Bleha
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Andriy Synytsya
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Janina Kraska
- Competence Center for Applied Mycology and Environmental Studies, Niederrhein University of Applied Sciences, 41065 Moenchengladbach, Germany
| | - Miriam Sari
- Competence Center for Applied Mycology and Environmental Studies, Niederrhein University of Applied Sciences, 41065 Moenchengladbach, Germany
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5
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Cai C, Wen C, Zhao W, Tian S, Long Y, Zhang X, Sui X, Zhang L, Yang J. Environment-Resistant Organohydrogel-Based Sensor Enables Highly Sensitive Strain, Temperature, and Humidity Responses. ACS Appl Mater Interfaces 2022; 14:23692-23700. [PMID: 35536163 DOI: 10.1021/acsami.2c02997] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Conductive hydrogels have been extensively used in wearable skin sensors owing to their outstanding flexibility, tissuelike compliance, and biocompatibility. However, the dehydration and embrittlement of hydrogels can result in sensitivity loss or even invalidation, restraining their wearable applications in external environments, especially at low temperatures and in arid environments. Herein, an environment-resistant organohydrogel is developed for multifunctional sensors. A double-network organohydrogel based on hyaluronic acid and poly(acrylic acid-co-acrylamide) is developed, and glycerol is introduced into the organohydrogel network via a solvent displacement strategy. Owing to the water-locking effects of glycerol and tough polymeric backbone, the resultant organohydrogel not only exhibits stable tensibility but also maintains excellent flexibility and stable conductivity with the environment-resistant properties, including freezing resistance against -30 °C and moisture retention at 4% relative humidity in a high temperature of 60 °C. Moreover, a series of organohydrogel-based sensors and an array device are developed to achieve highly sensitive strain, temperature, and humidity responses and exhibit a high gauge factor of 10.79 in the strain-sensitive test. This work develops a universal ionic skin based on organohydrogels to be applied to wearable sensors for health monitoring.
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Affiliation(s)
- Chengcheng Cai
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - Chiyu Wen
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - Weiqiang Zhao
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - Shu Tian
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - You Long
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - Xiangyu Zhang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - Xiaojie Sui
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - Lei Zhang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
| | - Jing Yang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Frontier Technology Research Institute, Tianjin University, Tianjin 301700, China
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6
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Han Q, Wang A, Song W, Zhang M, Wang S, Ren P, Hao L, Yin J, Bai S. Fabrication of Conductive, Adhesive, and Stretchable Agarose-Based Hydrogels for a Wearable Biosensor. ACS Appl Bio Mater 2021; 4:6148-6156. [PMID: 35006882 DOI: 10.1021/acsabm.1c00501] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Herein, a strategy is proposed to prepare a conductive, self-adhesive, and stretchable agarose gel with the merits of distinct heat resistance, freeze resistance, and long-term moisture retention. To endow the gels with conductivity, monodisperse carbon nanotubes modified by polydopamine are introduced into the gel networks, which promote both conductivity and mechanical strength of the gels. Meanwhile, further addition of glycerol enhances excellent stretchability as well as heating/freezing tolerability and moisture retention of the gels. A wearable biosensor based on the gel is fabricated to record body motions precisely with good biocompatibility, which benefits the development of smart wearable devices.
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Affiliation(s)
- Qingquan Han
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China.,University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Anhe Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China.,University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Wei Song
- Department of Electronic Engineering, Tsinghua University, 100084 Beijing, China
| | - Milin Zhang
- Department of Electronic Engineering, Tsinghua University, 100084 Beijing, China
| | - Shengtao Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China.,Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 214122 Wuxi, China
| | - Peng Ren
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China.,University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Linna Hao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China.,Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 214122 Wuxi, China
| | - Jian Yin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 214122 Wuxi, China
| | - Shuo Bai
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China.,University of Chinese Academy of Sciences, 100049 Beijing, China
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7
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Mi Y, Miao Q, Cui J, Tan W, Guo Z. Novel 2-Hydroxypropyltrimethyl Ammonium Chitosan Derivatives: Synthesis, Characterization, Moisture Absorption and Retention Properties. Molecules 2021; 26:4238. [PMID: 34299513 DOI: 10.3390/molecules26144238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022] Open
Abstract
Recent years have seen a steady increase in interest and demand for the use of humectants based on biodegradable natural polymers in many fields. The aim of this paper is to investigate the moisture absorption and retention properties of 2-hydroxypropyltrimethyl ammonium chitosan derivatives which were modified by anionic compounds via ion exchange. FTIR, 1H NMR, and 13C NMR spectroscopy were used to demonstrate the specific structures of chitosan derivatives. The degrees of substitution for objective products were calculated by the integral ratio of hydrogen atoms according to 1H NMR spectroscopy. Meanwhile, moisture absorption of specimens was assayed in a desiccator at different relative humidity (RH: 43% and 81%), and all target products exhibited enhanced moisture absorption. Furthermore, moisture retention measurement at different relative humidity (RH: 43%, 81%, and drier silica gel) was estimated, and all target products possessed obviously improved moisture retention property. Specifically, after 48 h later, the moisture retention property of HACBA at 81% RH was 372.34%, which was much higher than HA (180.04%). The present study provided a novel method to synthesize chitosan derivatives with significantly improved moisture absorption and retention properties that would serve as potential humectants in biomedical, food, medicine, and cosmetics fields.
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8
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Li J, Yu F, Chen G, Liu J, Li XL, Cheng B, Mo XM, Chen C, Pan JF. Moist-Retaining, Self-Recoverable, Bioadhesive, and Transparent in Situ Forming Hydrogels To Accelerate Wound Healing. ACS Appl Mater Interfaces 2020; 12:2023-2038. [PMID: 31895528 DOI: 10.1021/acsami.9b17180] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the management of accelerating wound healing, moist environments play an important role. Compared with other scaffolds of various forms, hydrogels can maintain a moist environment in the wound area. They are cross-linked hydrophilic polymeric networks that resemble natural soft tissues and extracellular matrices. Among them, injectable hydrogels have attracted great attention in wound repair, as they can be injected into irregular-shaped skin defects and formed in situ to shape the contour of different dimensions. The excellent compliance makes hydrogels easy to adapt to the wound under different conditions of skin movement. Here, we oxidized hydroxyethyl starch (O-HES) and modified carboxymethyl chitosan (M-CMCS) to fabricate an in situ forming hydrogel with excellent self-recoverable extensibility-compressibility, biocompatibility, biodegradability, and transparency for accelerating wound healing. The oxidation degree of O-HES was 74%. The amino modification degree of M-CMCS was 63%. M-CMCS/O-HES hydrogels were formed through the Schiff base reaction. The physicochemical properties of M-CMCS/O-HES hydrogels with various ratios were investigated, and M-CMCS/O-HES hydrogel with a volume ratio of 5:5 exhibited appropriate gelation time, notable water-retaining capacity, self-recoverable conformal deformation, suitable biodegradability, and good biocompatibility for wound-healing application. Then, skin wound-healing experimental studies were carried out in Sprague-Dawley rats with full-thickness skin defects. Significant outcomes were achieved in the M-CMCS/O-HES hydrogel-treated group including higher wound closure percentage, more granulation tissue formation, faster epithelialization, and decreased collagen deposition. These findings demonstrate that using the obtained M-CMCS/O-HES hydrogels is a promising therapeutic strategy for wound healing.
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Affiliation(s)
- Jun Li
- Department of Orthopedics , Shanghai Tenth People's Hospital Affiliated to Tongji University , 301 Yanchang Road , Shanghai 200072 , China
| | - Fan Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , 2999 North Renmin Road , Shanghai 201620 , China
| | - Gong Chen
- School of Environmental and Materials Engineering, College of Engineering , Shanghai Polytechnic University , Shanghai 201209 , China
| | - Jia Liu
- Department of Orthopedics , Shidong Hospital of Yangpu District , 999 Shiguang Road , Shanghai 200438 , China
| | - Xiao-Long Li
- Department of Orthopedics , Changhai Hospital, Naval Military Medical University , Shanghai 200433 , China
| | - Biao Cheng
- Department of Orthopedics , Shanghai Tenth People's Hospital Affiliated to Tongji University , 301 Yanchang Road , Shanghai 200072 , China
| | - Xiu-Mei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , 2999 North Renmin Road , Shanghai 201620 , China
| | - Cheng Chen
- School of Environmental and Materials Engineering, College of Engineering , Shanghai Polytechnic University , Shanghai 201209 , China
| | - Jian-Feng Pan
- Department of Orthopedics , Shanghai Tenth People's Hospital Affiliated to Tongji University , 301 Yanchang Road , Shanghai 200072 , China
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9
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Song L, Xie W, Zhao Y, Lv X, Yang H, Zeng Q, Zheng Z, Yang X. Synthesis, Antimicrobial, Moisture Absorption and Retention Activities of Kojic Acid-Grafted Konjac Glucomannan Oligosaccharides. Polymers (Basel) 2019; 11:E1979. [PMID: 31805726 PMCID: PMC6960788 DOI: 10.3390/polym11121979] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/12/2019] [Accepted: 11/23/2019] [Indexed: 12/21/2022] Open
Abstract
Kojic acid (KA) with antibacterial activities produced by fermentation was grafted onto konjac glucomannan oligosaccharide (KGO) composed of glucose and mannose linked by β-1,4 glycosidic bonds. A novel KGO derivative, konjac glucomannan oligosaccharide kojic acid (KGOK) possessing both moisture retention and antibacterial activities was synthesized. The structure of KGOK was characterized and analyzed by thermogravimetric analysis (TG), XRD, UV-vis absorption, FTIR, and 1H NMR. The analysis results suggest that KA was linked to the KGO molecular chain through a covalent bond, and the reaction site of KA was the methylol group. The studies demonstrate that KGOK maintained the excellent moisture absorption and retention properties of KGO and the good antibacterial activities of KA. The minimum inhibitory concentration (MIC) of KGOK is 2 mg/mL for Staphylococcus aureus, Staphylococcus epidermidis, Shewanella putrefaciens, and Salmonella enterica, while its MIC is 3 mg/mL for Escherichia coli. The multi-functionality of the KGOK synthesized from natural sources provides a theoretical foundation for their potential applications in the preservation of food, beverage, aquatic, and cosmetic products.
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Affiliation(s)
- Lin Song
- College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Laboratory for Biochemical Engineering of Shandong Province, Qingdao 266042, China
- Wuqiong food Co., Ltd., Raoping 515726, China
| | - Wancui Xie
- College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Laboratory for Biochemical Engineering of Shandong Province, Qingdao 266042, China
| | - Yukun Zhao
- College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Xinyao Lv
- College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | | | | | - Zuoxing Zheng
- College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Laboratory for Biochemical Engineering of Shandong Province, Qingdao 266042, China
| | - Xihong Yang
- College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Laboratory for Biochemical Engineering of Shandong Province, Qingdao 266042, China
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10
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Bu F, Liu J, Bai Y, Prasanna Kanungo D, Song Z, Kong F, Pan C. Effects of the Preparation Conditions and Reinforcement Mechanism of Polyvinyl Acetate Soil Stabilizer. Polymers (Basel) 2019; 11:polym11030506. [PMID: 30960490 PMCID: PMC6473337 DOI: 10.3390/polym11030506] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/09/2019] [Accepted: 03/12/2019] [Indexed: 11/16/2022] Open
Abstract
The significant criterion for evaluating the merits of a new type of high molecular polymer lies in its engineering properties and eco-friendliness. The focus of this study was to determine the effects of preparation conditions on the viscosity of the polyvinyl acetate (PVAc) emulsion, including reaction temperature (Tr), initiator concentration (CAPS), monomer concentration (CVA), pH value, and degree of dilution (Ddi). Based on the results of a series of laboratory tests, the range of viscosity value of PVAc was obtained under different conditions, and one set of viscosity values out of these was applied to soil reinforcement tests. Meanwhile, based on the test results, the engineering properties of PVAc solution were evaluated using strength and moisture retention tests, and the reinforcement mechanism was analyzed using scanning electron microscopy (SEM). In addition, it was proven through a vegetation growth test that the PVAc was eco-friendly.
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Affiliation(s)
- Fan Bu
- School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China.
| | - Jin Liu
- School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China.
| | - Yuxia Bai
- School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China.
| | - Debi Prasanna Kanungo
- Council of Scientific and Industrial Research (CSIR)-Central Building Research Institute (CBRI), Roorkee 247667, India.
| | - Zezhuo Song
- School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China.
| | - Fanxuan Kong
- School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China.
| | - Cheng Pan
- School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China.
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11
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Jiménez-Pérez ZE, Singh P, Kim YJ, Mathiyalagan R, Kim DH, Lee MH, Yang DC. Applications of Panax ginseng leaves-mediated gold nanoparticles in cosmetics relation to antioxidant, moisture retention, and whitening effect on B16BL6 cells. J Ginseng Res 2017; 42:327-333. [PMID: 29983614 PMCID: PMC6026357 DOI: 10.1016/j.jgr.2017.04.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 03/28/2017] [Accepted: 04/15/2017] [Indexed: 10/28/2022] Open
Abstract
Background Bioactive compounds in plant extracts are able to reduce metal ions to nanoparticles through the process of green synthesis. Panax ginseng is an oriental medicinal herb and an adaptogen which has been historically used to cure various diseases. In addition, the P. ginseng leaves-mediated gold nanoparticles are the value-added novel materials. Its potential as a cosmetic ingredient is still unexplored. The aim of this study was to evaluate the antioxidant, moisture retention and whitening properties of gold nanoparticles (PgAuNPs) in cosmetic applications. Methods Cell-free experiments were performed to evaluate PgAuNP's antioxidant and moisture retention properties and inhibition activity on mushroom tyrosinase. Furthermore, in vitro cell cytotoxicity was evaluated using normal human dermal fibroblast and murine B16BL6 melanoma cells (B16) after treatment with increasing concentrations of PgAuNPs for 24 h, 48 h, and 72 h. Finally, in vitro cell assays on B16 cells were performed to evaluate the whitening effect of PgAuNPs through reduction of cellular melanin content and tyrosinase activity. Results In vitro DPPH radical scavenging assay results revealed that PgAuNPs exhibited antioxidant activity in a dose-dependent manner. PgAuNPs exhibited moisture retention capacity and effectively inhibited mushroom tyrosinase. In addition, 3-(4,5-dimethyl-thiazol-2yl)-2,5-diphenyl tetrazolium bromide results revealed that PgAuNPs were not toxic to human dermal fibroblast and B16 cells; in addition, they significantly reduced melanin content, tyrosinase activity, and mRNA expression of melanogenesis-associated transcription factor and tyrosinase in B16 cells. Conclusion Our study is the first report to provide evidence supporting that P. ginseng leaves-capped gold nanoparticles could be used as multifunctional ingredients in cosmetics.
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Affiliation(s)
- Zuly Elizabeth Jiménez-Pérez
- Graduate School of Biotechnology and Ginseng Bank, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Priyanka Singh
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Yeon-Ju Kim
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Ramya Mathiyalagan
- Graduate School of Biotechnology and Ginseng Bank, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Dong-Hyun Kim
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Myoung Hee Lee
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Deok Chun Yang
- Graduate School of Biotechnology and Ginseng Bank, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea.,Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
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Torti MJ, Sims CA, Adams CM, Sarnoski PJ. Polysaccharides as Alternative Moisture Retention Agents for Shrimp. J Food Sci 2016; 81:S728-35. [PMID: 26849189 DOI: 10.1111/1750-3841.13242] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 01/10/2016] [Indexed: 11/28/2022]
Abstract
Phosphates are used as moisture retention agents (MRAs) by the shrimp industry. Although they are effective, phosphates are expensive, need to be listed on a food label, and overuse can often lead to a higher product cost for consumers. Polysaccharides were researched as alternative MRAs. Polysaccharides are usually inexpensive, are considered natural, and can have nutritional benefits. Research was conducted to determine whether polysaccharides yielded similar functional impacts as phosphates. Treatments included a 0.5% fibercolloid solution isolated from citrus peel, an 8% pectin solution, a 0.5% xanthan gum (XG) solution, a 1% carboxymethyl cellulose solution, and conventionally used 4% sodium tripolyphosphate (STP). Experimental treatments were compared to a distilled water control to gauge effectiveness. Freezing, boiling, and oven drying studies were performed to determine how moisture retention in shrimp differed using these different treatments. Water activity was measured to determine any potential differences in shelf life. Solution uptake was also determined to understand how well the treatments enhanced water binding. For moisture loss by freezing, 4% STP and the 0.5% fibercolloid solution functioned the best. The 4% STP treated shrimp lost the least amount of moisture during boiling. The 0.5% fibercolloid and 0.5% XG treatment outperformed phosphates in respect to moisture uptake ability. None of the treatments had a major effect on water activity. All treatments were rated similar in consumer sensory acceptability tests except for pectin, which was rated lower by the sensory panel. Overall, polysaccharides were found to be viable alternatives to phosphates.
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Affiliation(s)
- Michael J Torti
- Dept. of Food Science and Human Nutrition, Inst. of Food and Agricultural Sciences, Univ. of Florida, Gainesville, Fla., 32611, U.S.A
| | - Charles A Sims
- Dept. of Food Science and Human Nutrition, Inst. of Food and Agricultural Sciences, Univ. of Florida, Gainesville, Fla., 32611, U.S.A
| | - Charles M Adams
- Food and Resource Economics Dept, Inst. of Food and Agricultural Sciences, Univ. of Florida, Gainesville, Fla., 32611, U.S.A
| | - Paul J Sarnoski
- Dept. of Food Science and Human Nutrition, Inst. of Food and Agricultural Sciences, Univ. of Florida, Gainesville, Fla., 32611, U.S.A
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Laghari M, Hu Z, Mirjat MS, Xiao B, Tagar AA, Hu M. Fast pyrolysis biochar from sawdust improves the quality of desert soils and enhances plant growth. J Sci Food Agric 2016; 96:199-206. [PMID: 25582546 DOI: 10.1002/jsfa.7082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 12/22/2014] [Accepted: 01/07/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Biochar has been mostly used in conventional arable soils for improving soil fertility. This study investigated the effect of biochars of different temperatures on plant growth and desert soil properties. Biochars of different temperatures (i.e. 400, 500, 600, 700, and 800 °C) were mixed in the soil with 5% by mass, and the treatments were designated as T-400, T-500, T-600, T-700 and T-800, respectively. Sorghum was used as a test crop, and the effect of biochar on plant height, yield and soil properties was evaluated. RESULTS Sorghum yield increased by 19% and 32% under T-400 and T-700, respectively, above the control. Biochar reduced depth-wise moisture depletion in soil columns and hence improved soil water-holding capacity by 14% and 57% under T-400 and T-700, respectively. Soil hydraulic conductivity was reduced by 15% and 42%, and moisture-retention capacity was improved by 16% and 59%. Hence, sorghum net water-use efficiency increased by 52% and 74% in T-400 and T-700, respectively. Biochar also improved soil total carbon, cation exchange capacity and plant nutrient content. CONCLUSION The addition of fast pyrolysis biochar made from pine sawdust improved the quality of Kubuqi Desert soil and enhanced plant growth. Hence, it can be used for desert modification.
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Affiliation(s)
- Mahmood Laghari
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430073, P.R. China
- Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Zhiquan Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430073, P.R. China
| | - Muhammad Saffar Mirjat
- Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Bo Xiao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430073, P.R. China
| | - Ahmed Ali Tagar
- Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Mian Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430073, P.R. China
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Abstract
Carboxymethyl chitosan is a chitosan derivative of the most intensively investigated due to its water solubility in wider pH range compared with the parent compound, thus extended its use in various applications. In this review, different preparation conditions, which resulting in the N- and O-carboxylated chitosan, diverse degree of substitution and water solubility are recapitulated. Five important features of carboxymethyl chitosan from recent studies, which are moisture absorption-retention, anti-microbial properties, antioxidant capacities, delivery system and emulsion stabilization, have been centred and emphasized for cosmetic utilization. Additionally, cytotoxicity information has been inclusively incorporated to ensure its safety in application.
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Affiliation(s)
- A Jimtaisong
- School of Cosmetic Science, Mae Fah Luang University, Muang, Chiangrai, 57100, Thailand
| | - N Saewan
- School of Cosmetic Science, Mae Fah Luang University, Muang, Chiangrai, 57100, Thailand
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