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Huang X, Li J, He J, Luo J, Cai J, Wei J, Li P, Zhong H. Preparation of curcumin-loaded chitosan/polyvinyl alcohol intelligent active films for food packaging and freshness monitoring. Int J Biol Macromol 2024:133807. [PMID: 38996887 DOI: 10.1016/j.ijbiomac.2024.133807] [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: 04/18/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
To fulfill the current need for intelligent active food packaging. This study incorporated the curcumin inclusion complexes (CUR-CD) into chitosan/polyvinyl alcohol polymer to develop a new intelligent active film. The structures of films were analyzed by Fourier-transform infrared (FT-IR), scanning electron microscope (SEM), and so on. The CP-Cur150 film displays exceptional mechanical properties, water vapor barrier, and UV blocking capabilities as demonstrated by physical analysis. The CP-Cur150 film exhibited free radical scavenging rates on 2,2-diazo-di-3-ethylbenzothiazolin-6-sulfonic (ABTS) (98 %) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) (87 %). Additionally, it showed inhibitory effects on Gram-positive bacteria (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli), reducing live colony counts by approximately 2.7 and 1.3 Log10 CFU/mL, respectively. The films were used to monitor the shrimp's freshness in real time. With the spoilage of shrimp, the film exhibited clear color fluctuations, from light yellow to red. In addition, the evaluation of the impact of films on pork pH, total volatile basic nitrogen, and total bacterial counts demonstrated that the CP-Cur150 film displayed the most significant effectiveness in preserving freshness, thereby extending the shelf life of pork.
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Affiliation(s)
- Xinghai Huang
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China
| | - Jianmin Li
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China
| | - Jingjin He
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China
| | - Jianwei Luo
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China
| | - Jinyun Cai
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China
| | - Jianhua Wei
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China.
| | - Peiyuan Li
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China.
| | - Haiyi Zhong
- College of Pharmacy, Guangxi University of Chinese Medicine, 530200 Nanning, China.
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Song Z, Li W, He Q, Xie X, Wang X, Guo J. Natural products - Dawn of keloid treatment. Fitoterapia 2024; 175:105918. [PMID: 38554887 DOI: 10.1016/j.fitote.2024.105918] [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: 09/20/2023] [Revised: 03/15/2024] [Accepted: 03/23/2024] [Indexed: 04/02/2024]
Abstract
Keloids are prevalent pathological scars, often leading to cosmetic deformities and hindering joint mobility.They cause discomfort, including burning and itching, while gradually expanding and potentially posing a risk of cancer.Developing effective drugs and treatments for keloids has been a persistent challenge in the medical field. Natural products are an important source of innovative drugs and a breakthrough for many knotty disease.Herein, keywords of "natural, plant, compound, extract" were combined with "keloid" and searched in PubMed and Google Scholar, respectively. A total of 32 natural products as well as 9 extracts possessing the potential for treating keloids were ultimately identified.Current research in this field faces a significant challenge due to the lack of suitable animal models, resulting in a predominant reliance on in vitro studies.In vivo and clinical studies are notably scarce as a result.Moreover, there is a notable deficiency in research focusing on the role of nutrients in keloid formation and treatment.The appropriate dosage form (oral, topical, injectable) is crucial for the development of natural product drugs. Finally, the conclusion was hereby made that natural products, when used as adjuncts to other treatments, hold significant potential in the management of keloids.By summarizing the natural products and elucidating their mechanisms in keloid treatment, the present study aims to stimulate further discoveries and research in drug development for effectively addressing this challenging condition.
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Affiliation(s)
- Zongzhou Song
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Wenquan Li
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Qingying He
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Xin Xie
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Xurui Wang
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Jing Guo
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China.
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Wang J, Cao Y, Wan J, Zhang M, Li Y, Wang Y, Song D, Zhang T, Wang J. pH-Responsive Graphene Oxide-Based 2D/3D Composite for Enhancing Anti-Corrosion Properties of Epoxy Coating. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:323. [PMID: 38392696 PMCID: PMC10893030 DOI: 10.3390/nano14040323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/29/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024]
Abstract
The functionalized graphene oxide (GO)-based composites as fillers added into organic coatings are desired for realizing the longstanding corrosion protection of carbon steel. Here, the pH-responsive two-dimensional/three-dimensional (2D/3D) GO-based composite (ZIF-90-AAP/GO) was developed by environmentally friendly corrosion inhibitor 4-aminoantipyrine (AAP) anchored on the in situ growth of zeolite imidazolate framework-90 (ZIF-90) on the GO surface (ZIF-90/GO) through the Schiff base reaction. The active filler (ZIF-90-AAP/GO) was incorporated into an epoxy coating (EP) to obtain a high-performance self-healing coating on the surface of carbon steel. ZIF-90-AAP can greatly improve dispersion and compatibility of GO in EP. The low-frequency impedance modulus of ZIF-90-AAP/GO-EP can still reach up to 1.35 × 1010 Ω⋅cm2 after 40 days, which is about three orders of magnitude higher than that of the EP containing GO (GO-EP) relying on its passive and active corrosion protection. Meanwhile, ZIF-90-AAP/GO-EP exhibits excellent self-healing performance. The self-healing rate of ZIF-90-AAP/GO changes from negative to positive after 24 h, which results from the effective corrosion inhibition activity of ZIF-90-AAP for carbon steel based on the pH-triggered controlled release of AAP. The developed pH-responsive 2D/3D GO-based composite coating is very attractive for the corrosion protection of carbon steel.
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Affiliation(s)
| | | | | | | | | | - Yanli Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; (J.W.); (Y.C.); (J.W.); (M.Z.); (Y.L.); (D.S.); (T.Z.); (J.W.)
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Mahmoudi M, Alizadeh P, Soltani M. Wound healing performance of electrospun PVA/70S30C bioactive glass/Ag nanoparticles mats decorated with curcumin: In vitro and in vivo investigations. BIOMATERIALS ADVANCES 2023; 153:213530. [PMID: 37356283 DOI: 10.1016/j.bioadv.2023.213530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 06/09/2023] [Accepted: 06/17/2023] [Indexed: 06/27/2023]
Abstract
Biocompatible fibrous scaffold containing polyvinyl alcohol (PVA), 70S30C bioactive glass (BG), silver (Ag) nanoparticles and curcumin (Cur) was fabricated through electrospinning method. Scanning electron microscope (SEM) and Field emission scanning electron microscopy (FESEM) were employed to investigate the morphological characteristics of the scaffolds. In addition, biodegradability, hydrophilicity, and contact angle were studied as criteria for evaluating physical properties of the scaffolds. Tensile strength was reported to be 0.971 ± 0.093 MPa. Also, the viability of fibroblasts after 7 days of cell culture was 93.58 ± 1.36 %. The antibacterial activity against Escherichia coli and Staphylococcus aureus bacteria was illustrated using inhibition zones of 13.12 ± 0.69 and 14.21 ± 1.37 mm, respectively. Histological results revealed that tissue regeneration after 14 days of surgery was much higher for the dressing group compared to the blank group. According to the obtained results, the authors introduce the PVA-BG-Ag-Cur scaffold as a promising candidate for skin tissue engineering applications.
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Affiliation(s)
- Masoud Mahmoudi
- Department of Materials Science and Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Parvin Alizadeh
- Department of Materials Science and Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran.
| | - Mohammad Soltani
- Department of Materials Science and Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
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Wang C, Qiao Z, Tian Y, Yang H, Cao H, Cheetham AK. Alcohol imination catalyzed by carbon nanostructures synthesized by C(sp 2)-C(sp 3) free radical coupling. iScience 2023; 26:106659. [PMID: 37182103 PMCID: PMC10173739 DOI: 10.1016/j.isci.2023.106659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 01/13/2023] [Accepted: 04/07/2023] [Indexed: 05/16/2023] Open
Abstract
Imines are important intermediates for synthesizing various fine chemicals, with the disadvantage of requiring the use of expensive metal-containing catalysts. We report that the dehydrogenative cross-coupling of phenylmethanol and benzylamine (or aniline) directly forms the corresponding imine with a yield of up to 98%, and water as the sole by-product, in the presence of a stoichiometric base, using carbon nanostructures as the "green" metal-free carbon catalysts with high spin concentrations, which is synthesized by C(sp2)-C(sp3) free radical coupling reactions. The catalytic mechanism is attributed to the unpaired electrons of carbon catalysts to reduce O2 to O2·-, which triggers the oxidative coupling reaction to form imines, whereas the holes in the carbon catalysts receive electrons from the amine to restore the spin states. This is supported by density functional theory calculations. This work will open up an avenue for synthesizing carbon catalysts and offer great potential for industrial applications.
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Affiliation(s)
- Cheng Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zirui Qiao
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yulan Tian
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Haijun Yang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Huaqiang Cao
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Anthony K. Cheetham
- Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
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Blilid S, Boundor M, Katir N, El Achaby M, Lahcini M, Majoral JP, Bousmina M, El Kadib A. Expanding Chitosan Reticular Chemistry Using Multifunctional and Thermally Stable Phosphorus-Containing Dendrimers. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sara Blilid
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
| | - Mohamed Boundor
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Nadia Katir
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Mounir El Achaby
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Mohammed Lahcini
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 Route de Narbonne, 31077 Toulouse, France
| | - Mosto Bousmina
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Abdelkrim El Kadib
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
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Nath BD, Islam MM, Karim MR, Rahman S, Shaikh MAA, Georghiou PE, Menelaou M. Recent Progress in Metal‐Incorporated Acyclic Schiff‐Base Derivatives: Biological Aspects. ChemistrySelect 2022. [DOI: 10.1002/slct.202104290] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bikash Dev Nath
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
| | - Md. Monarul Islam
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
| | - Md. Rezaul Karim
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
| | - Shofiur Rahman
- Department of Chemistry Memorial University of Newfoundland St. John's Newfoundland and Labrador A1B 3X7 Canada
| | - Md. Aftab Ali Shaikh
- Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
- Department of Chemistry University of Dhaka Dhaka 1000 Bangladesh
| | - Paris E. Georghiou
- Department of Chemistry Memorial University of Newfoundland St. John's Newfoundland and Labrador A1B 3X7 Canada
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