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Yang B, Liu B, Gao Y, Wei J, Li G, Zhang H, Wang L, Hou Z. PEG-crosslinked O-carboxymethyl chitosan films with degradability and antibacterial activity for food packaging. Sci Rep 2024; 14:10825. [PMID: 38734808 PMCID: PMC11088648 DOI: 10.1038/s41598-024-61642-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024] Open
Abstract
This study developed a kind of PEG-crosslinked O-carboxymethyl chitosan (O-CMC-PEG) with various PEG content for food packaging. The crosslinking agent of isocyanate-terminated PEG was firstly synthesized by a simple condensation reaction between PEG and excess diisocyanate, then the crosslink between O-carboxymethyl chitosan (O-CMC) and crosslinking agent occurred under mild conditions to produce O-CMC-PEG with a crosslinked structure linked by urea bonds. FT-IR and 1H NMR techniques were utilized to confirm the chemical structures of the crosslinking agent and O-CMC-PEGs. Extensive research was conducted to investigate the impact of the PEG content (or crosslinking degree) on the physicochemical characteristics of the casted O-CMC-PEG films. The results illuminated that crosslinking and components compatibility could improve their tensile features and water vapor barrier performance, while high PEG content played the inverse effects due to the microphase separation between PEG and O-CMC segments. The in vitro degradation rate and water sensitivity primarily depended on the crosslinking degree in comparison with the PEG content. Furthermore, caused by the remaining -NH2 groups of O-CMC, the films demonstrated antibacterial activity against Escherichia coli and Staphylococcus aureus. When the PEG content was 6% (medium crosslinking degree), the prepared O-CMC-PEG-6% film possessed optimal tensile features, high water resistance, appropriate degradation rate, low water vapor transmission rate and fine broad-spectrum antibacterial capacity, manifesting a great potential for application in food packaging to extend the shelf life.
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Affiliation(s)
- Bing Yang
- Key Laboratory of Public Security Management Technology in Universities of Shandong, School of Intelligence Engineering, Shandong Management University, Jinan, Shandong, China
| | - Baoliang Liu
- School of Chemistry and Chemical Engineering, Qilu Normal University, Jinan, Shandong, China.
| | - Yuanyuan Gao
- Taian Yingxiongshan Middle School, Taian, Shandong, China
| | - Junjie Wei
- Key Laboratory of Public Security Management Technology in Universities of Shandong, School of Intelligence Engineering, Shandong Management University, Jinan, Shandong, China
| | - Gang Li
- Shandong Tianming Pharmaceutical Co, Ltd., Jinan, Shandong, China
| | - Hui Zhang
- Key Laboratory of Public Security Management Technology in Universities of Shandong, School of Intelligence Engineering, Shandong Management University, Jinan, Shandong, China
| | - Linlin Wang
- Key Laboratory of Public Security Management Technology in Universities of Shandong, School of Intelligence Engineering, Shandong Management University, Jinan, Shandong, China
| | - Zhaosheng Hou
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, China.
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Puttharak P, Wangnai P, Puttharak J, Baisaeng N. Optimizing medicinal hemp production with synergistic light-enhanced technologies and organic biorefinery approaches. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 254:112890. [PMID: 38507943 DOI: 10.1016/j.jphotobiol.2024.112890] [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: 01/26/2024] [Revised: 03/02/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
This study explores the application of sustainable organic and biorefinery methods to increase the production of therapeutic hemp. Specifically, it focuses on Solodiol, Carmagnola, and Doctor Seedman strains. The study was carried out for 60 days in a highly controlled setting. It employed a unique combination of Murashige and Skoog (MS) media, supplemented with 2,4-D (0.5 mg/L) and kinetin (0.5 mg/L), and augmented with organic additions such as coconut water. This distinctive amalgamation facilitated extraordinary expansion across all varieties. The Solodiol strain demonstrated remarkable growth characteristics in terms of the number of branches, leaves, shoots, and height, whilst Carmagnola and Doctor Seedman indicated significant differences in diameter. Carmagnola, specifically, flourished in specific conditions: a strict 16-h period of light followed by 8 h of darkness, particularly when exposed to blue light. The Carmagnola strain, grown using MS feed (2StemMS), produced a hemp oil extract with a high concentration of 3.85%, compared to the Solodiol and Doctor Seedman strains, and also showcases their potential in promoting an environmentally friendly and therapeutically helpful medicinal hemp industry.
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Affiliation(s)
- Phopgao Puttharak
- Department of Biology, School of Science, University of Phayao, Phayao Province 56000, Thailand.
| | - Patthamaporn Wangnai
- Department of Biology, School of Science, University of Phayao, Phayao Province 56000, Thailand
| | - Jarucha Puttharak
- School of Dentistry, University of Phayao, Phayao Province 56000, Thailand
| | - Nuttakorn Baisaeng
- School of Pharmaceutical Sciences, University of Phayao, Phayao Province 56000, Thailand
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Chełminiak-Dudkiewicz D, Smolarkiewicz-Wyczachowski A, Ziegler-Borowska M, Kaczmarek H. Photochemical stability of chitosan films doped with cannabis oil. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 251:112850. [PMID: 38277961 DOI: 10.1016/j.jphotobiol.2024.112850] [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: 11/11/2023] [Revised: 01/03/2024] [Accepted: 01/22/2024] [Indexed: 01/28/2024]
Abstract
The effect of UV radiation from three different sources on chitosan (CS) films containing the addition of 10% by weight of cannabis oil was investigated. Cannabis oil (CBD) alone exposed to UV is unstable, but its photostability significantly increases in the chitosan matrix. The course of photochemical reactions, studied by FTIR spectroscopy, is slow and inefficient in chitosan with CBD, even under high-energy UV sources. The research also included chitosan films with CBD cross-linked with dialdehyde starch (DAS). Using AFM microscopy and contact angle measurements, the morphology and surface properties of prepared chitosan films with CBD were investigated, respectively. It was found that CBD embedded in CS is characterized by the best photostability under the influence of an LED emitting long-wave radiation. Using a monochromatic and polychromatic UV lamp (HPK and UV-C) emitting high-energy radiation, gradual degradation accompanied by oxidation was observed, both in the CS chains and in the CBD additive. Additionally, changes in surface properties are observed during UV irradiation. It was concluded that CS protects CBD against photodegradation, and a further improvement in photochemical stability is achieved after system cross-linking with DAS.
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Affiliation(s)
| | | | - Marta Ziegler-Borowska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
| | - Halina Kaczmarek
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
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Chelminiak-Dudkiewicz D, Machacek M, Dlugaszewska J, Wujak M, Smolarkiewicz-Wyczachowski A, Bocian S, Mylkie K, Goslinski T, Marszall MP, Ziegler-Borowska M. Fabrication and characterization of new levan@CBD biocomposite sponges as potential materials in natural, non-toxic wound dressing applications. Int J Biol Macromol 2023; 253:126933. [PMID: 37722631 DOI: 10.1016/j.ijbiomac.2023.126933] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/09/2023] [Accepted: 09/14/2023] [Indexed: 09/20/2023]
Abstract
Wound healing is a complex process; therefore, new dressings are frequently required to facilitate it. In this study, porous bacterial levan-based sponges containing cannabis oil (Lev@CBDs) were prepared and fully characterized. The sponges exhibited a suitable swelling ratio, proper water vapor transmission rate, sufficient thermal stability, desired mechanical properties, and good antioxidant and anti-inflammatory properties. The obtained Lev@CBD materials were evaluated in terms of their interaction with proteins, human serum albumin and fibrinogen, of which fibrinogen revealed the highest binding effect. Moreover, the obtained biomaterials exhibited antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa, as well as being non-hemolytic material as indicated by hemolysis tests. Furthermore, the sponges were non-toxic and compatible with L929 mouse fibroblasts and HDF cells. Most significantly, the levan sponge with the highest content of cannabis oil, in comparison to others, retained its non-hemolytic, anti-inflammatory, and antimicrobial properties after prolonged storage in a climate chamber at a constant temperature and relative humidity. The designed sponges have conclusively proven their beneficial physicochemical properties and, at the preliminary stage, biocompatibility as well, and therefore can be considered a promising material for wound dressings in future in vivo applications.
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Affiliation(s)
- Dorota Chelminiak-Dudkiewicz
- Department of Biomedical Chemistry and Polymer Science, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland.
| | - Miloslav Machacek
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Akademika Heyrovskeho 1203, 500-05 Hradec Kralove, Czech Republic
| | - Jolanta Dlugaszewska
- Department of Genetics and Pharmaceutical Microbiology, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
| | - Magdalena Wujak
- Department of Medicinal Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Aleksander Smolarkiewicz-Wyczachowski
- Department of Biomedical Chemistry and Polymer Science, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
| | - Szymon Bocian
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
| | - Kinga Mylkie
- Department of Biomedical Chemistry and Polymer Science, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
| | - T Goslinski
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 10, 60-780 Poznan, Poland
| | - Michal P Marszall
- Department of Medicinal Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Marta Ziegler-Borowska
- Department of Biomedical Chemistry and Polymer Science, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland.
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Boehm E, Droessler L, Amasheh S. Cannabidiol attenuates inflammatory impairment of intestinal cells expanding biomaterial-based therapeutic approaches. Mater Today Bio 2023; 23:100808. [PMID: 37779918 PMCID: PMC10539670 DOI: 10.1016/j.mtbio.2023.100808] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/06/2023] [Accepted: 09/19/2023] [Indexed: 10/03/2023] Open
Abstract
Cannabis-based biomaterials have the potential to deliver anti-inflammatory therapeutics specifically to desired cells, tissues, and organs, enhancing drug delivery and the effectiveness of anti-inflammatory treatment while minimizing toxicity. As a major component of Cannabis, Cannabidiol (CBD) has gained major attention in recent years because of its potential therapeutic properties, e.g., for restoring a disturbed barrier resulting from inflammatory conditions. The aim of this study was to test the hypothesis that CBD has beneficial effects under normal and inflammatory conditions in the established non-transformed intestinal epithelial cell model IPEC-J2. CBD induced a significant increase in transepithelial electrical resistance (TER) values and a decrease in the paracellular permeability of [³H]-D-Mannitol, indicating a strengthening effect on the barrier. Under inflammatory conditions induced by tumor necrosis factor alpha (TNFα), CBD stabilized the TER and mitigated the increase in paracellular permeability. Additionally, CBD prevented the barrier-disrupting effects of TNFα on the distribution and localization of sealing TJ proteins. CBD also affected the expression of TNF receptors. These findings demonstrate the potential of CBD as a component of Cannabis-based biomaterials used in the development of novel therapeutic approaches against inflammatory pathogenesis.
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Affiliation(s)
- Elisa Boehm
- Institute of Veterinary Physiology, School of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
| | - Linda Droessler
- Institute of Veterinary Physiology, School of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
| | - Salah Amasheh
- Institute of Veterinary Physiology, School of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
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Cui S, Yang F, Yu D, Shi C, Zhao D, Chen L, Chen J. Double Network Physical Crosslinked Hydrogel for Healing Skin Wounds: New Formulation Based on Polysaccharides and Zn 2. Int J Mol Sci 2023; 24:13042. [PMID: 37685860 PMCID: PMC10488206 DOI: 10.3390/ijms241713042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/11/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
Developing convenient, efficient, and natural wound dressings remain the foremost strategy for treating skin wounds. Thus, we innovatively combined the semi-dissolved acidified sol-gel conversion method with the internal gelation method to fabricate SA (sodium alginate)/CS (chitosan)/Zn2+ physically cross-linked double network hydrogel and named it SA/CS/Zn2+ PDH. The characterization results demonstrated that increased Zn2+ content led to hydrogels with improved physical and chemical properties, such as rheology, water retention, and swelling capacity. Moreover, the hydrogels exhibited favorable antibacterial properties and biocompatibility. Notably, the establishment of an in vitro pro-healing wound model further confirmed that the hydrogel had a superior ability to repair wounds and promote skin regeneration. In future, as a natural biomaterial with antimicrobial properties, it has the potential to promote wound healing.
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Affiliation(s)
| | | | | | | | | | | | - Jingdi Chen
- Marine College, Shandong University, Weihai 264209, China; (S.C.); (F.Y.); (D.Y.); (C.S.); (D.Z.); (L.C.)
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