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Macchia A, Marinelli L, Barbaccia FI, de Caro T, Hansen A, Schuberthan LM, Izzo FC, Pintus V, Testa Chiari K, La Russa MF. Mattel's ©Barbie: Preventing Plasticizers Leakage in PVC Artworks and Design Objects through Film-Forming Solutions. Polymers (Basel) 2024; 16:1888. [PMID: 39000743 PMCID: PMC11244241 DOI: 10.3390/polym16131888] [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: 05/13/2024] [Revised: 06/21/2024] [Accepted: 06/23/2024] [Indexed: 07/17/2024] Open
Abstract
The main conservation problem of p-PVC artworks is phthalate-based plasticizer migration. Phthalate migration from the bulk to the surface of the materials leads to the formation of a glossy and oily film on the outer layers, ultimately reducing the flexibility of the material. This study aimed to develop a removable coating for the preservation of contemporary artworks and design objects made of plasticized polyvinyl chloride (p-PVC). Several coatings incorporating chitosan, collagen, and cellulose ethers were assessed as potential barriers to inhibiting plasticizer migration. Analytical techniques including optical microscopy (OM), ultraviolet/visible/near-infrared spectroscopy (UV/Vis/NIR), Fourier transform infrared spectroscopy with attenuated total reflection (FTIR-ATR), and scanning electron microscopy (SEM) were utilized to evaluate the optical and chemical stability of selected coating formulations applied to laboratory p-PVC sheet specimens. Subsequently, formulations were tested on a real tangible example of a design object, ©Barbie doll, characterized by the prevalent issue of plasticizer migration. Furthermore, the results obtained with the tested formulations were evaluated by a group of conservators using a tailored survey. Finally, a suitable coating formulation capable of safeguarding plastic substrates was suggested.
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Affiliation(s)
- Andrea Macchia
- Department of Biology, Ecology and Earth Sciences DIBEST, University of Calabria, Via Pietro Bucci, Arcavacata, 87036 Rende, Italy; (A.M.); (M.F.L.R.)
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (L.M.); (L.M.S.); (K.T.C.)
| | - Livia Marinelli
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (L.M.); (L.M.S.); (K.T.C.)
- Department of Science of Antiquities, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Francesca Irene Barbaccia
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (L.M.); (L.M.S.); (K.T.C.)
- Department of Technological Innovation Engineering, Digital Technologies for Industry 4.0, International Telematic University Uninettuno, Corso Vittorio Emanuele II 39, 00186 Rome, Italy
| | - Tilde de Caro
- CNR ISMN, Strada Provinciale 35d, 9, 00010 Rome, Italy;
| | - Alice Hansen
- Plart Museum, Via Giuseppe Martucci 48, 80121 Naples, Italy;
| | - Lisa Maria Schuberthan
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (L.M.); (L.M.S.); (K.T.C.)
| | - Francesca Caterina Izzo
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, Via Torino 155, 30123 Venice, Italy;
| | - Valentina Pintus
- Institute for Natural Science and Technology in Arts, Academy of Fine Arts Vienna, Schillerplatz 3, 1010 Vienna, Austria
- Institute for Conservation and Restoration, Academy of Fine Arts Vienna, Schillerplatz 3, 1010 Vienna, Austria
| | - Katiuscia Testa Chiari
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (L.M.); (L.M.S.); (K.T.C.)
| | - Mauro Francesco La Russa
- Department of Biology, Ecology and Earth Sciences DIBEST, University of Calabria, Via Pietro Bucci, Arcavacata, 87036 Rende, Italy; (A.M.); (M.F.L.R.)
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Li ZB, Liu J, Xu YN, Sun XM, Peng YH, Zhao Q, Lin YA, Huang YR, Ren L. Hydrophilic, Porous, Fiber-Reinforced Collagen-Based Membrane for Corneal Repair. Macromol Biosci 2024; 24:e2300449. [PMID: 38178686 DOI: 10.1002/mabi.202300449] [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: 10/02/2023] [Indexed: 01/06/2024]
Abstract
Collagen membrane with outstanding biocompatibility exhibits immense potential in the field of corneal repair and reconstruction, but the poor mechanical properties limit its clinical application. Polycaprolactone (PCL) is a biodegradable polymer widely explored for application in corneal reconstruction due to its excellent mechanical properties, biocompatibility, easy processability, and flexibility. In this study, a PCL/collagen composite membrane with reinforced mechanical properties is developed. The membrane has a strong composite structure with collagen by utilizing a porous and hydrophilic PCL scaffold, maintaining its integrity even after immersion. The suture retention and mechanical tests demonstrate that compared with the pure collagen membrane, the prepared membrane has a greater tensile strength and twice the modulus of elasticity. Further, the suture retention strength is improved by almost two times. In addition, the membrane remains fully intact on the implant bed in an in vitro corneal defect model. Moreover, the membrane can be tightly sutured to a rabbit corneal defect, progressively achieve epithelialization, and remain unchanged during observation. Overall, the PCL/collagen composite membrane is a promising candidate as a suturable corneal restoration material in clinical keratoplasty.
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Affiliation(s)
- Zhi-Biao Li
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Jia Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Ying-Ni Xu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Xiao-Min Sun
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yue-Hai Peng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Bio-land Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, 510005, P. R. China
- Guangzhou Proud Seeing Biotechnology Co., Ltd, Guangzhou, 510300, P. R. China
| | - Qi Zhao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yong-An Lin
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yong-Rui Huang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Li Ren
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- Bio-land Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, 510005, P. R. China
- Guangzhou Proud Seeing Biotechnology Co., Ltd, Guangzhou, 510300, P. R. China
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Shi S, Wu X, Wang Y, Li W, Zhang H, Lou X, Xia X, Liang W. Sodium-alginate-based indicator film containing a hydrophobic nanosilica layer for monitoring fish freshness. Int J Biol Macromol 2024; 265:130714. [PMID: 38462116 DOI: 10.1016/j.ijbiomac.2024.130714] [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: 12/10/2023] [Revised: 02/13/2024] [Accepted: 03/05/2024] [Indexed: 03/12/2024]
Abstract
In this study, hydrophobic sodium alginate/anthocyanin/cellulose nanocrystal indicator films were fabricated by incorporating nanosilica (NS) as a waterproofing layer. The concentrations and formation methods (spraying (S), coating (C), and impregnation (I)) of the NS layer (denoted as NSS, NSC, NSI, respectively) were optimized. The results indicated that the optimum concentration of the NS layer was 5 % at a water contact angle (WCA) 110.5°. Further, Fourier transform infrared spectra showed the presence of SiOSi and SiCH3 groups in the NSS, NSC, and NSI films, and X-ray diffraction spectra indicated that original structures of these films were disordered. Moreover, the surface morphology, mechanical properties, and light transmission were affected by the NS layer, and the optimal layer was found to be NSI. After 10 days of storage at 100 % humidity, the NSI film exhibited low water vapor adsorption (37.22 g) and permeability (0.1484 g/m·s·Pa·10-11) and a high WCA (110.2°). In addition, the NSI film exhibited a visible color shift with an increasing pH of the buffer solution. A monitoring test of fish freshness showed that the NSI film displayed a distinctive color change corresponding to fish spoilage during 14 days of storage. This indicates that NSI has high potential in indicator film applications.
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Affiliation(s)
- Shuo Shi
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China
| | - Xiaodan Wu
- Heilongjiang North Fish Fishing Industry Group Co., LTD, Daqing, Heilongjiang 163000, China
| | - Ying Wang
- Heilongjiang North Fish Fishing Industry Group Co., LTD, Daqing, Heilongjiang 163000, China
| | - Wenxin Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Hao Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xinjiang Lou
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xiufang Xia
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Weiwei Liang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; College of Food Engineering, Harbin University, Harbin, Heilongjiang 150086, China.
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Zhao K, Li R, Qi W, Tian X, Zhang Z, Wang Y, Zhang Y, Zhang H, Wang W. Adjustable strength and toughness of dual cross-linked nanocellulose films via spherical cellulose as soft-phase. Carbohydr Polym 2024; 327:121708. [PMID: 38171668 DOI: 10.1016/j.carbpol.2023.121708] [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: 11/19/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 01/05/2024]
Abstract
Nanocellulose films possess numerous merits ascribing to their inherent biocompatibility, non-toxic and biodegradability properties. The potential for practical applications would be improved if their mechanical strength and toughness requirements could be met simultaneously. Herein, dual cross-linked nanocellulose (DC) film was fabricated by the treatments of chemical and physical cross-linking, which was mechanically superior to pure nanocellulose (CNF) films. To further increase the toughness of DC films, spherical cellulose (Sph) was incorporated into DC film (DC-Sph film), and analyzed under different humidity conditions (RH) (from 10 % to 90 %). The changes of functional groups of CNF, DC and DC-Sph films were detected by FTIR and XPS spectrum. The epichlorohydrin and Sph content were optimized, followed by the investigation of RH on the toughness of films. The highest tensile strength (146.6 ± 4.6 MPa) was obtained in DC film at 50 % RH, while the DC-Sph film showed the largest toughness (40.3 ± 3.7 kJ/m2) at 70 % RH. Furthermore, the possible toughening mechanism of DC-Sph film was also discussed.
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Affiliation(s)
- Kaixuan Zhao
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; Collage of Food Science and Technology, Hebei Agricultural University, Hebei 071001, China
| | - Ruonan Li
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Wenhui Qi
- Collage of Food Science and Technology, Hebei Agricultural University, Hebei 071001, China
| | - Xiaojing Tian
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Zhisheng Zhang
- Collage of Food Science and Technology, Hebei Agricultural University, Hebei 071001, China.
| | - Yang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yafei Zhang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Hongjie Zhang
- National Engineering Lab for Pulp and Paper, China National Pulp and Paper Research Institute Co., Ltd., Beijing 100102, China.
| | - Wenhang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
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Tian X, Zhao K, Teng A, Li Y, Wang W. A rethinking of collagen as tough biomaterials in meat packaging: assembly from native to synthetic. Crit Rev Food Sci Nutr 2022; 64:957-977. [PMID: 35997287 DOI: 10.1080/10408398.2022.2111401] [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] [Indexed: 11/03/2022]
Abstract
Due to the high moisture-associated typical rheology and the changeable and harsh processing conditions in the production process, packaging materials for meat products have higher requirements including a sufficient mechanical strength and proper ductility. Collagen, a highly conserved structural protein consisting of a triple helix of Gly-X-Y repeats, has been proved to be suitable packaging material for meat products. The treated animal digestive tract (i.e. the casing) is the perfect natural packaging material for wrapping meat into sausage. Its thin walls, strong toughness and impact resistance make it the oldest and best edible meat packaging. Collagen casing is another wisdom of meat packaging, which is made by collagen fibers from hide skin, presenting a rapid growth in casing market. To strengthen mechanical strength and barrier behaviors of collagen-based packaging materials, different physical, chemical, and biological cross-linking methods are springing up exuberantly, as well as a variety of reinforcement approaches including nanotechnology. In addition, the rapid development of biomimetic technology also provides a good research idea and means for the promotion of collagen's assembly and relevant mechanical properties. This review can offer some reference on fundamental theory and practical application of collagenous materials in meat products.
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Affiliation(s)
- Xiaojing Tian
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - KaiXuan Zhao
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - Anguo Teng
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - Yu Li
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Wenhang Wang
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
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