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Abdulsalam RA, Ijabadeniyi OA, Sabiu S. Fatty acid-modified chitosan and nanoencapsulation of essential oils: A snapshot of applications. Carbohydr Res 2024; 542:109196. [PMID: 38936268 DOI: 10.1016/j.carres.2024.109196] [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: 02/26/2024] [Revised: 06/14/2024] [Accepted: 06/18/2024] [Indexed: 06/29/2024]
Abstract
Chitosan (CS) and its modification with fatty acid (FA) in addition to the nanoencapsulation with essential oils (EOs) have emerged as promising approaches with diverse applications, particularly in food and fruit preservation. This review aims to curate data on the prospects of CS modified with FA as nanostructures, serving as carriers for EOs and its application in the preservation of fruits. A narrative review with no restricted period was used for the general overview of CS and strategies for its modification with FA. Report on CS modified with FA and nanoencapsulation with EO and their applications were appraised. The prospects of CS modified with FA and EO nanoencapsulation in food and fruit preservation were outlined. Most chitosan-fatty acid (CS-FA) studies have found relevance in water, medical and pharmaceutical industries, with few studies on food preservation. CS-FA formulation with EOs shows substantial potential in preserving fruits and will significantly impact the food industry in the future by extending the shelf life of fruits and reducing food waste.
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Affiliation(s)
- Rukayat Abiola Abdulsalam
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban, 4000, South Africa
| | - Oluwatosin Ademola Ijabadeniyi
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban, 4000, South Africa
| | - Saheed Sabiu
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban, 4000, South Africa.
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2
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Yi X, Zhang Z, Niu J, Wang H, Li T, Gong J, Zheng R. Green Strong Cornstalk Rind-Based Cellulose-PVA Aerogel for Oil Adsorption and Thermal Insulation. Polymers (Basel) 2024; 16:1260. [PMID: 38732729 PMCID: PMC11085144 DOI: 10.3390/polym16091260] [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: 04/02/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Cellulose-based aerogel has attracted considerable attention for its excellent adsorption capacity, biodegradability, and renewability. However, it is considered eco-unfriendly due to defibrillation of agriculture waste and requires harmful/expensive chemical agents. In this study, cornstalk rind-based aerogel was obtained via the following steps: green H2O2/HAc delignification of cornstalk rind to obtain cellulose fibers, binding with carboxymethyl cellulose (CMC)/polyvinyl alcohol (PVA) and freeze-drying treatment, and hydrophobic modification with stearic acid. The obtained aerogel showed high compressive strength (200 KPa), which is apparently higher (about 32 kPa) than NaClO-delignified cornstalk-based cellulose/PVA aerogel. Characterization of the obtained aerogel through SEM, water contact angle, etc., showed high porosity (95%), low density (0.0198 g/cm-3), and hydrophobicity (water contact angle, 159°), resulting in excellent n-hexane adsorption capacity (35 g/g), higher (about 29.5 g/g) than NaClO-delignified cornstalk-based cellulose/PVA aerogel. The adsorbed oil was recovered by the extrusion method, and the aerogel showed excellent recyclability in oil adsorption.
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Affiliation(s)
- Xiaoyang Yi
- College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, China; (X.Y.); (Z.Z.)
| | - Zhongxu Zhang
- College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, China; (X.Y.); (Z.Z.)
| | - Junfeng Niu
- College of Biological & Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China; (J.N.); (T.L.); (J.G.)
| | | | - Tiankun Li
- College of Biological & Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China; (J.N.); (T.L.); (J.G.)
| | - Junjie Gong
- College of Biological & Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China; (J.N.); (T.L.); (J.G.)
| | - Rongbo Zheng
- College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, China; (X.Y.); (Z.Z.)
- College of Biological & Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China; (J.N.); (T.L.); (J.G.)
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3
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Yan Z, Wang D, Gao Y. Nanomaterials for the treatment of bacterial infection by photothermal/photodynamic synergism. Front Bioeng Biotechnol 2023; 11:1192960. [PMID: 37251578 PMCID: PMC10210152 DOI: 10.3389/fbioe.2023.1192960] [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: 03/24/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023] Open
Abstract
In the past few decades, great progress has been made in the field of nanomaterials against bacterial infection. However, with the widespread emergence of drug-resistant bacteria, people try their best to explore and develop new antibacterial strategies to fight bacteria without obtaining or increasing drug resistance. Recently, multi-mode synergistic therapy has been considered as an effective scheme for the treatment of bacterial infections, especially the combination of photothermal therapy (PTT) and photodynamic therapy (PDT) with controllable, non-invasive, small side effects and broad-spectrum antibacterial characteristics. It can not only improve the efficiency of antibiotics, but also do not promote antibiotic resistance. Therefore, multifunctional nanomaterials which combine the advantages of PTT and PDT are more and more used in the treatment of bacterial infections. However, there is still a lack of a comprehensive review of the synergistic effect of PTT and PDT in anti-infection. This review first focuses on the synthesis of synergistic photothermal/photodynamic nanomaterials and discusses the ways and challenges of photothermal/photodynamic synergism, as well as the future research direction of photothermal/photodynamic synergistic antibacterial nanomaterials.
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Rout SR, Kar B, Pradhan D, Biswasroy P, Haldar J, Rajwar TK, Sarangi MK, Rai VK, Ghosh G, Rath G. Chitosan as a potential biomaterial for the management of oral mucositis, a common complication of cancer treatment. Pharm Dev Technol 2023; 28:78-94. [PMID: 36564887 DOI: 10.1080/10837450.2022.2162544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Oral mucositis is a serious issue in patients receiving oncological therapies. Mucosal protectants considered to be one of the preferred choices used in the management of mucositis. However, the protective efficacy of currently available mucosal protectants has been significantly compromised due to poor retention, lack of lubrication, poor biodegradability, and inability to manage secondary complications. Chitosan is a promising material for mucosal applications due to its beneficial biomedical properties. Chitosan is also anti-inflammatory, anti-microbial, and capable of scavenging free radicals, makes it a good candidate for the treatment of oral mucositis. Additionally, chitosan's amino polysaccharide skeleton permits a number of chemical alterations with better bioactive performance. This article provides a summary of key biological properties of chitosan and its derivatives that are useful for treating oral mucositis. Current literature evidence shows that Chitosan has superior mucosal protective properties when utilised alone or as delivery systems for co-encapsulated drugs.
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Affiliation(s)
- Sudhanshu Ranjan Rout
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Biswakanth Kar
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Deepak Pradhan
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Prativa Biswasroy
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Jitu Haldar
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Tushar Kanti Rajwar
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Manoj Kumar Sarangi
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Lucknow, India
| | - Vineet Kumar Rai
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Goutam Ghosh
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Goutam Rath
- School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, India
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Dun X, Liu S, Ge N, Liu M, Li M, Zhang J, Bao H, Li B, Zhang H, Cui L. Photothermal effects of CuS-BSA nanoparticles on H22 hepatoma-bearing mice. Front Pharmacol 2022; 13:1029986. [PMID: 36313308 PMCID: PMC9596806 DOI: 10.3389/fphar.2022.1029986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 09/28/2022] [Indexed: 11/21/2022] Open
Abstract
The objective of this study was to evaluate the in vivo application and photothermal ablation effects and mechanism of copper sulfide nanoparticles (CuS NPs) in hepatocellular carcinoma (HCC). Sheet-like CuS-BSA NPs with a particle size of 30 nm were synthesized using bovine serum albumin (BSA) as a biological modifier, and were physically characterized. To provide a reference range for the biosafety dose of CuS-BSA NPs, 36 male Kunming mice were randomly assigned into six groups. Different one-time doses of CuS-BSA NPs were injected via tail vein injection, and the potential damages of liver, kidney and spleen were observed 14 days later. To evaluate the in vivo photothermal effect of CuS-BSA NPs, 48 male Kunming mice were used to establish the H22 hepatoma-bearing mouse model and were randomly assigned into six groups. CuS-BSA NPs (600 μg/kg) were injected via tail vein or intratumoral injection. Irradiations were performed 30 min after injection, with a 980 nm near-infrared laser (2.0 W/cm2) for 10 min once a week for 3 weeks. The results indicated that the CuS-BSA NPs had good dispersibility in three different solvents and had a strong absorption peak at 980 nm. The heating curves demonstrated that the photothermal effects of CuS-BSA NPs aqueous solution exhibited concentration dependence and power density dependence. In the in vivo experiment, when the doses of CuS-BSA NPs were in the range of 1800–7,200 μg/kg, the thymus index and spleen index of mice were not significantly different from those of the control group, and the structures of liver, kidney and spleen were intact without remarkable pathological changes. A lower dose of CuS-BSA NPs (600 μg/kg) could effectively inhibit tumor growth in H22 hepatoma-bearing mice at 980 nm NIR. Moreover, under the near-infrared laser irradiation, both in the tail vein injection group and the intratumoral injection group, a large area of necrosis in the tumor tissue, as well as the up-regulation of apoptotic proteins including cleaved caspase-3 and cleaved caspase-9 were observed. CuS-BSA NPs are promising photothermal agents in the photothermal therapy of cancer.
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Affiliation(s)
- Xinyu Dun
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Shuliang Liu
- Weihai Center for Disease Control and Prevention, Weihai, Shandong, China
| | - Nan Ge
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Meng Liu
- Department of Occupational Medicine, The Affiliated Qingdao Central Hospital of Qingdao University, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, China
| | - Ming Li
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Jun Zhang
- Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, China
| | - Hongxu Bao
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Benying Li
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Hua Zhang
- Department of Occupational Medicine, The Affiliated Qingdao Central Hospital of Qingdao University, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, China
- *Correspondence: Hua Zhang, ; Lianhua Cui,
| | - Lianhua Cui
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
- *Correspondence: Hua Zhang, ; Lianhua Cui,
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Liu X, Ma J, Shen J, Zhao J, Lu C, Tu G. Advanced Dual−Function Hollow Copper−Sulfide−Based Polyimide Composite Window Film Combining Near−Infrared Thermal Shielding and Organic Pollutants’ Photodegradation. Polymers (Basel) 2022; 14:polym14163382. [PMID: 36015639 PMCID: PMC9413264 DOI: 10.3390/polym14163382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 11/17/2022] Open
Abstract
Window−film−integrated, near−infrared (NIR) absorption−based nanomaterials are of great interest in terms of numerous demands to reduce energy consumption, especially in buildings and vehicles. However, the question of how to effectively manage thermal energy generated from NIR harvesting in light−absorbing materials, rather than being wasted or causing negative effects, remains challenging. Herein, hollow copper sulfide (Cu2−xS) on colorless polyimide (PI) films, enabling them to be well−dispersed and robustly adhered, underwent in situ growth fabrication and were utilized as NIR−thermal−shielding and organic−pollutant−removal dual−function window films. Due to strong NIR absorbance, arising from the heavy hole−doping (copper cation deficiency), the Cu2−xS/PI composite film exhibited great promise for use in the filtration of the NIR spectrum. By monitoring Cu2−xS densities, its NIR−shielding efficiency reached 69.4%, with hundred−percent UV blocking and consistent performance within the reliability (85 °C/85%RH) tests over one week as well as 5000 bending cycles. The integration of the films into model cars and building windows exhibited excellent thermal−shielding performance upon exposure to direct sunlight. Moreover, benefiting from the distinctive distribution of Cu2−xS, the additional thermal energy (holes) generated in NIR absorption was successfully utilized. The densely surface−confined hollow structure of Cu2−xS on PI significantly endowed good formaldehyde catalytic capacity, with removal efficiency reaching approximately 72% within 60 min and a negligible decline after quartic reuse. These integration methodologies enable the promising fabrication of a high−performance, bifunctional window film combining thermal shielding and indoor organic pollutant removal.
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Cheng H, Pan X, Shi Z, Huang X, Zhong Q, Liu H, Chen Y, Lian Q, Wang J, Shi Z. Chitin/corn stalk pith sponge stimulated hemostasis with erythrocyte absorption, platelet activation, and Ca 2+-binding capabilities. Carbohydr Polym 2022; 284:118953. [PMID: 35287883 DOI: 10.1016/j.carbpol.2021.118953] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/18/2021] [Accepted: 11/27/2021] [Indexed: 11/23/2022]
Abstract
Chitin (CT) is widely used as a hemostatic material in surgical sponges, although its efficacy needs improvement to promote the clotting process. In this study, another green biomass, corn stalk pith (CSP), was incorporated into CT through ball milling to fabricate CT-CSP composite hemostatic sponges to enhance erythrocyte absorption, platelet activation, and clotting factor accumulation (Ca2+). In vitro hemostatic analysis indicated that CSP incorporation greatly promoted the coagulation process, with a much lower blood clot index and higher blood clot stability. In addition, the composite sponge promoted more platelet adhesion and activation, and the composite sponge demonstrated a greater ability to bind clotting factors (Ca2+). Consistently, it achieved complete hemostasis with less blood loss and a shorter hemostatic time in a rat liver injury-model. This composite hemostatic sponge is sustainable, cost-efficient, and biocompatible, which highlight the excellent translational potential in clinical settings.
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Affiliation(s)
- Hao Cheng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China
| | - Xin Pan
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China
| | - Zhe Shi
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China
| | - Xusheng Huang
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Haizhu District, Guangzhou 510000, China
| | - Qiang Zhong
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China
| | - Haibing Liu
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China; Department of Orthopaedics, Affiliated Hengyang Hospital of Southern Medical University (Hengyang Central Hospital), Yanfeng District, Hengyang 421000, China
| | - Yuhang Chen
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China
| | - Qiang Lian
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China
| | - Jian Wang
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China.
| | - Zhanjun Shi
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou N Ave, Baiyun District, Guangzhou 510515, China.
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8
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Chitosan Film Functionalized with Grape Seed Oil—Preliminary Evaluation of Antimicrobial Activity. SUSTAINABILITY 2022. [DOI: 10.3390/su14095410] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Although the fishing and wine industries undoubtedly contribute significantly to the economy, they also generate large waste streams with considerable repercussions on both economic and environmental levels. Scientific literature has shown products can be extracted from these streams which have properties of interest to the cosmetics, pharmaceutical and food industries. Antimicrobial activity is undoubtedly among the most interesting of these properties, and particularly useful in the production of food packaging to increase the shelf life of food products. In this study, film for food packaging was produced for the first time using chitosan extracted from the exoskeletons of red shrimp (Aristomorpha foliacea) and oil obtained from red grape seeds (Vitis vinifera). The antimicrobial activity of two films was analyzed: chitosan-only film and chitosan film with the addition of red grape seed oil at two different concentrations (0.5 mL and 1 mL). Our results showed noteworthy antimicrobial activity resulting from functionalized chitosan films; no activity was observed against pathogen and spoilage Gram-positive and Gram-negative bacteria, although the antimicrobial effects observed were species-dependent. The preliminary results of this study could contribute to developing the circular economy, helping to promote the reuse of waste to produce innovative films for food packaging.
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Xie Y, Gan C, Li Z, Liu W, Yang D, Qiu X. Fabrication of a Lignin-Copper Sulfide-Incorporated PVA Hydrogel with Near-Infrared-Activated Photothermal/Photodynamic/Peroxidase-like Performance for Combating Bacteria and Biofilms. ACS Biomater Sci Eng 2022; 8:560-569. [PMID: 35077128 DOI: 10.1021/acsbiomaterials.1c01406] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Antibiotic-resistant bacteria and biofilms are among the most difficult challenges in infection treatment. Herein, lignin-copper sulfide (LS-CuS) nanocomposites were incorporated into a poly(vinyl alcohol) (PVA) hydrogel to fabricate a LS-CuS@PVA composite hydrogel with near-infrared-activated photothermal, photodynamic, and peroxidase-like performance. The antibacterial tests of LS-CuS@PVA exhibited the highest antibacterial rate that caused 3.8-log and 4.8-log reductions of colony forming units (CFUs) against Escherichia coli and Staphylococcus aureus in the presence of H2O2 under near-infrared (NIR) light irradiation for 10 min. The significantly improved bactericidal performance could be attributed to the synergistic effects of hyperthermia and reactive oxygen species (ROS). Furthermore, the LS-CuS@PVA hydrogel could eradicate the already formed biofilm and inhibit biofilm formation. Considering the highly effective antibacterial and antibiofilm activity of the LS-CuS@PVA hydrogel, this work could provide new insights for the design of poly(vinyl alcohol)-based composite hydrogels for wound healing and wound dressing.
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Affiliation(s)
- Yuanxiang Xie
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, China
| | - Chuchu Gan
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, China
| | - Zhixian Li
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, China
| | - Weifeng Liu
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, China
| | - Dongjie Yang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, China
| | - Xueqing Qiu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, China
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Mutalik C, Okoro G, Krisnawati DI, Jazidie A, Rahmawati EQ, Rahayu D, Hsu WT, Kuo TR. Copper sulfide with morphology-dependent photodynamic and photothermal antibacterial activities. J Colloid Interface Sci 2021; 607:1825-1835. [PMID: 34688975 DOI: 10.1016/j.jcis.2021.10.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 01/12/2023]
Abstract
Metal chalcogenides have been intensively investigated as antibacterial agents due to their unique structures and superior photoactivities. Herein, various structures of copper sulfide (CuS), a metal chalcogenide, such as microspheres (MSs), nanosheets (NSs), and nanoparticles (NPs), were developed in this work for antibacterial applications. A hydrothermal process was utilized to synthesize CuS MSs, CuS NSs, and CuS NPs. Under simulated solar light and near-infrared (NIR) light irradiation, the antibacterial behaviors, reactive oxygen species (ROS) production, and light-driven antibacterial mechanisms of CuS MSs, CuS NSs, and CuS NPs were demonstrated with the bacterium Escherichia coli (E. coli). Bacterial growth curves and ROS generation tests indicated that CuS NSs and CuS NPs had higher light-driven antibacterial activities than that of CuS MSs. ROS of hydroxyl (·OH) and superoxide anion radicals (O2-) were investigated via an electron spin resonance (ESR) spectroscopic analysis by respectively incubating CuS MSs, CuS NSs, and CuS NPs with E. coli under simulated solar light irradiation. Furthermore, E. coli incubated with CuS NPs and CuS NSs showed substantial bacterial degradation after NIR laser irradiation, which was attributed to their photothermal killing effects. Light-driven antibacterial mechanisms of CuS NSs and CuS NPs were investigated, and we discovered that under simulated solar and NIR light irradiation, CuS NSs and CuS NPs produced photoinduced electrons, and the copper ions and photoinduced electrons then reacted with atmospheric moisture to produce hydroxide and superoxide anion radicals and heat, resulting in bacterial mortality.
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Affiliation(s)
- Chinmaya Mutalik
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Goodluck Okoro
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | | | - Achmad Jazidie
- Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia; Universitas Nahdlatul Ulama Surabaya, Surabaya 60237, Indonesia
| | | | - Dwi Rahayu
- Dharma Husada Nursing Academy, Kediri 64114, Indonesia
| | - Wei-Tung Hsu
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
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11
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Nong Y, Ren Y, Wang P, Zhou M, Yu Y, Yuan J, Xu B, Wang Q. A facile strategy for the preparation of photothermal silk fibroin aerogels with antibacterial and oil-water separation abilities. J Colloid Interface Sci 2021; 603:518-529. [PMID: 34216949 DOI: 10.1016/j.jcis.2021.06.134] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/12/2021] [Accepted: 06/22/2021] [Indexed: 12/16/2022]
Abstract
Curtains with light-to-heat conversion capacity can warm up a room under solar radiation and improve the thermal energy efficiency of buildings, thereby reducing energy consumption during winter. Herein, a photothermal silk fibroin aerogel is synthesized by freeze-drying and curing method, using silk fibroin (SF) as template and scaffold, copper sulfide nanoparticles (CuS NPs) as photothermal conversion material, polyethylene glycol (PEG) as plasticizer, and polydimethylsiloxane (PDMS) as the package agent. The results reveal that SF as the template may guide the growth of CuS NPs, and the introduction of PEG improves the flexibility of the prepared CuS@SF aerogel. The composite CuS@SF-PEG/PDMS aerogel not only preserves the initial characteristics of SF aerogel but also integrates hydrophobic, rapid antibacterial ability, high-performance photothermal conversion efficiency, and stable switching effect. The lightweight, self-heating SF-based aerogel can be applied to the preparation of home textiles such as smart curtains. Additionally, it can be used as absorbent for cleaning up viscous oil from water, which could expand the applications of SF-based biomaterials toward meeting the requirements of sustainable developments.
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Affiliation(s)
- Yelin Nong
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Yiwen Ren
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Ping Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Man Zhou
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Yuanyuan Yu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Jiugang Yuan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Qiang Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
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12
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Chen Y, Su R, Wang F, Zhou W, Gao B, Yue Q, Li Q. In-situ synthesis of CuS@carbon nanocomposites and application in enhanced photo-fenton degradation of 2,4-DCP. CHEMOSPHERE 2021; 270:129295. [PMID: 33401076 DOI: 10.1016/j.chemosphere.2020.129295] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/24/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Novel CuS nanoparticles embedded into carbon nanosheets (CuS@CNs) were prepared in situ by applying wheat straw cellulose/feather protein hydrogel beads as templates and were used to photocatalytically activate H2O2 to degrade 2,4-dichlorphenol (2,4-DCP). The photo-Fenton catalytic properties of the nanocomposite catalysts obtained under different synthetic conditions, including different Cu2+ concentrations, S2- concentrations and calcination temperatures, were evaluated. The results showed that CuS@CNs with 0.1 M Cu2+, 0.1 M S2- at 800 °C presented excellent photo-Fenton degradation performance for 2,4-DCP (25 mg/L) in the presence of H2O2 and could remove 90% of 2,4-DCP in 2.5 h. The water quality parameters (pH, Cl-, HCO3-, H2PO4- and SO42-) exhibited different effects on the photocatalytic degradation process. The catalytic activity of the CuS@CNs used in the cycle could be recovered after thermal regeneration. Radical quenching and electron paramagnetic resonance (EPR) experiments confirmed that ·OH species were main active radicals contributing to the degradation of 2,4-DCP. The photocatalytic mechanism of CuS@CNs was also explored by photoelectrochemical (PEC) measurements and UV-vis diffuse reflectance spectroscopy (DRS). Incorporation of carbon nanosheets could significantly improve the separation of photogenerated charge carriers to stimulate pollutant degradation by CuS. Based on the detected intermediates, the degradation pathway of 2,4-DCP in the CuS@CNs/H2O2 reaction system was also proposed.
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Affiliation(s)
- Yi Chen
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Ruidian Su
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Fudong Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Weizhi Zhou
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Qinyan Yue
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China
| | - Qian Li
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, PR China; Shenzhen Research Institute of Shandong University, Shenzhen, 518057, China.
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Dong C, Feng W, Xu W, Yu L, Xiang H, Chen Y, Zhou J. The Coppery Age: Copper (Cu)-Involved Nanotheranostics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001549. [PMID: 33173728 PMCID: PMC7610332 DOI: 10.1002/advs.202001549] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/07/2020] [Indexed: 05/10/2023]
Abstract
As an essential trace element in the human body, transitional metal copper (Cu) ions are the bioactive components within the body featuring dedicated biological effects such as promoting angiogenesis and influencing lipid/glucose metabolism. The recent substantial advances of nanotechnology and nanomedicine promote the emerging of distinctive Cu-involved biomaterial nanoplatforms with intriguing theranostic performances in biomedicine, which are originated from the biological effects of Cu species and the physiochemical attributes of Cu-composed nanoparticles. Based on the very-recent significant progresses of Cu-involved nanotheranostics, this work highlights and discusses the principles, progresses, and prospects on the elaborate design and rational construction of Cu-composed functional nanoplatforms for a diverse array of biomedical applications, including photonic nanomedicine, catalytic nanotherapeutics, antibacteria, accelerated tissue regeneration, and bioimaging. The engineering of Cu-based nanocomposites for synergistic nanotherapeutics is also exemplified, followed by revealing their intrinsic biological effects and biosafety for revolutionizing their clinical translation. Finally, the underlying critical concerns, unresolved hurdles, and future prospects on their clinical uses are analyzed and an outlook is provided. By entering the "Copper Age," these Cu-involved nanotherapeutic modalities are expected to find more broad biomedical applications in preclinical and clinical phases, despite the current research and developments still being in infancy.
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Affiliation(s)
- Caihong Dong
- Department of UltrasoundZhongshan HospitalFudan UniversityShanghai200032P. R. China
| | - Wei Feng
- School of Life SciencesShanghai UniversityShanghai200444P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050P. R. China
| | - Wenwen Xu
- Department of UltrasoundRuijin HospitalShanghai Jiaotong University School of MedicineShanghai200025P. R. China
| | - Luodan Yu
- School of Life SciencesShanghai UniversityShanghai200444P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050P. R. China
| | - Huiijng Xiang
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050P. R. China
| | - Yu Chen
- School of Life SciencesShanghai UniversityShanghai200444P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050P. R. China
| | - Jianqiao Zhou
- Department of UltrasoundRuijin HospitalShanghai Jiaotong University School of MedicineShanghai200025P. R. China
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14
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Chitosan: Structural modification, biological activity and application. Int J Biol Macromol 2020; 164:4532-4546. [PMID: 32941908 DOI: 10.1016/j.ijbiomac.2020.09.042] [Citation(s) in RCA: 211] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/06/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023]
Abstract
Many by-products that are harmful to the environment and human health are generated during food processing. However, these wastes are often potential resources with high-added value. For example, crustacean waste contains large amounts of chitin. Chitin is one of the most abundant polysaccharides in natural macromolecules, and is a typical component of crustaceans, mollusks, insect exoskeleton and fungal cell walls. Chitosan is prepared by deacetylation of chitin and a copolymer of D-glucosamine and N-acetyl-D-glucosamine through β-(1 → 4)-glycosidic bonds. Chitosan has better solubility, biocompatibility and degradability compared with chitin. This review introduces the preparation, physicochemical properties, chemical and physical modification methods of chitosan, which could help us understand its biological activities and applications. According to the latest reports, the antibacterial activity, antioxidant, immune and antitumor activities of chitosan and its derivatives are summarized. Simultaneously, the various applications of chitosan and its derivatives are reviewed, including food, chemical, textile, medical and health, and functional materials. Finally, some insights into its future potential are provided, including novel modification methods, directional modification according to structure-activity relationship, activity and application development direction, etc.
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Tong R, Chen G, Tian J, He M. Highly Stretchable, Strain-Sensitive, and Ionic-Conductive Cellulose-Based Hydrogels for Wearable Sensors. Polymers (Basel) 2019; 11:polym11122067. [PMID: 31835891 PMCID: PMC6960870 DOI: 10.3390/polym11122067] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/07/2019] [Accepted: 12/08/2019] [Indexed: 11/16/2022] Open
Abstract
To extend the applications of natural polymer-based hydrogels to wearable sensors, it is both important and a great challenge to improve their mechanical and electrical performance. In this work, highly stretchable, strain-sensitive, and ionic-conductive cellulose-based hydrogels (CHs) were prepared by random copolymerization of allyl cellulose and acrylic acid. The acquired hydrogels exhibit high stretchability (~142% of tensile strain) and good transparency (~86% at 550 nm). In addition, the hydrogels not only demonstrate better sensitivity in a wide linear range (0–100%) but also exhibit excellent repeatable and stable signals even after 1000 cycles. Notably, hydrogel-based wearable sensors were successfully constructed to detect human movements. Their reliability, sensitivity, and wide-range properties endow the CHs with great potential for application in various wearable sensors.
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Affiliation(s)
- Ruiping Tong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; (R.T.); (J.T.)
| | - Guangxue Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; (R.T.); (J.T.)
- Correspondence: (G.C.); (M.H.)
| | - Junfei Tian
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; (R.T.); (J.T.)
| | - Minghui He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; (R.T.); (J.T.)
- Guangdong Engineering Research Center for Green Fine Chemicals, Guangzhou 510640, China
- Correspondence: (G.C.); (M.H.)
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