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Rahman S, Gogoi J, Dubey S, Chowdhury D. Animal derived biopolymers for food packaging applications: A review. Int J Biol Macromol 2024; 255:128197. [PMID: 37979757 DOI: 10.1016/j.ijbiomac.2023.128197] [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: 07/22/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 11/20/2023]
Abstract
It is essential to use environment-friendly, non-toxic, biodegradable and sustainable materials for various applications. Biopolymers are derived from renewable sources like plants, microorganisms, and agricultural wastes. Unlike conventional polymers, biopolymer has a lower carbon footprint and contributes less to greenhouse gas emission. All biopolymers are biodegradable, meaning natural processes can break them down into harmless products such as water and biomass. This property is of utmost importance for various sustainable applications. This review discusses different classifications of biopolymers based on origin, including plant-based, animal-based and micro-organism-based biopolymers. The review also discusses the desirable properties that are required in materials for their use as packaging material. It also discusses the different processes used in modifying the biopolymer to improve its properties. Finally, this review shows the recent developments taking place in using specifically animal origin-based biopolymer and its use in packaging material. It was observed that animal-origin-based biopolymers, although they possess unique properties however, are less explored than plant-origin biopolymers. The animal-origin-based biopolymers covered in this review are chitosan, gelatin, collagen, keratin, casein, whey, hyaluronic acid and silk fibroin. This review will help in renewing research interest in animal-origin biopolymers. In summary, biopolymer offers a sustainable and environment-friendly alternative to conventional polymers. Their versatility, biocompatibility will help create a more sustainable future.
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Affiliation(s)
- Sazzadur Rahman
- Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India; Department of Chemistry, Gauhati University, G. B. Nagar, Guwahati 781014, Assam, India
| | - Jahnabi Gogoi
- Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India
| | - Sonali Dubey
- Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India
| | - Devasish Chowdhury
- Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India; Department of Chemistry, Gauhati University, G. B. Nagar, Guwahati 781014, Assam, India.
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2
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Quispe MM, Villanueva ME, Copello GJ, López OV, Villar MA. Films of Poly(Hydroxybutyrate) (PHB) and Copper with Antibacterial Activity. Polymers (Basel) 2023; 15:2907. [PMID: 37447552 DOI: 10.3390/polym15132907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Poly(3-hydroxybutyrate), PHB, is a hydrophobic biopolymer with good mechanical and barrier properties. However, neat PHB is a semicrystalline polymer with a relative high degree of crystallinity and poor film properties. In this work, this biopolymer was plasticized with glycerol tributyrate and functionalized with copper (II) sulfate, allowing us to obtain biodegradable antimicrobial flexible films. Films with the minimum inhibitory concentration (MIC) of copper (II) sulfate presented a higher roughness than neat PHB films. The presence of plasticizer significantly improved the copper sulfate diffusion process, which was evidenced by a greater inhibition halo for plasticized materials compared to unplasticized ones, at the same salt concentration. Plasticized PHB with 2.5% copper (II) sulfate inhibited both Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomona aeruginosa) bacteria, as determined by the bacterial inhibition halo. In addition, neat PHB films and PHB containing copper (II) sulfate did not show in vitro cytotoxicity in the L-929 cell line. Thus, plasticized PHB functionalized with copper (II) sulfate can be used as biodegradable antimicrobial flexible films for different applications.
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Affiliation(s)
- Mayte M Quispe
- Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Camino La Carrindanga Km 7, Bahía Blanca 8000, Argentina
| | - María E Villanueva
- Departamento de Ciencias Básicas, Universidad de Luján, Luján 6700, Argentina
| | - Guillermo J Copello
- Instituto de Química y Metabolismo del Fármaco, IQUIMEFA (UBA-CONICET), Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires 1113, Argentina
| | - Olivia V López
- Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Camino La Carrindanga Km 7, Bahía Blanca 8000, Argentina
- Departamento de Química, Universidad Nacional del Sur, Av. Alem 1253, Bahía Blanca 8000, Argentina
| | - Marcelo A Villar
- Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Camino La Carrindanga Km 7, Bahía Blanca 8000, Argentina
- Departamento de Ingeniería Química, Universidad Nacional del Sur, Av. Alem 1253, Bahía Blanca 8000, Argentina
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3
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Gill AK, Shah S, Yadav P, Shanavas A, Neelakandan PP, Patra D. A visible-light activated ROS generator multilayer film for antibacterial coatings. J Mater Chem B 2022; 10:9869-9877. [PMID: 36437801 DOI: 10.1039/d2tb01454h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The current scenario of antibiotic-resistant bacteria and pandemics caused by viruses makes research in the area of antibacterial and antiviral materials and surfaces more urgent than ever. In this regard, salicylideneimine based tetracoordinate boron-containing organic compounds are emerging as a new class of photosensitizers for singlet oxygen generation. However, the inherent inability of small organic molecules to be processed limits their potential use in functional coatings. Here we show the synthesis of a novel polymer functionalized with diiodosalicylideneimine-boron difluoride (PEI-BF2) and its utility for surface coating inside glass vials via layer-by-layer (LbL) assembly. The multilayer thin films are characterized using AFM and UV-Vis spectroscopy and the resultant coatings display excellent stability. The multilayer coating could be activated using visible light, and owing to the photocatalytic activity of the incorporated PEI-BF2, the surface coating is able to generate singlet oxygen efficiently upon light irradiation. Further, the multilayer coated surfaces exhibit remarkable antimicrobial activity towards both Gram-positive and Gram-negative bacteria under a variety of conditions. Thus, owing to the simple synthesis and the convenient methodology adopted for the preparation of multilayer coatings, the material reported here could pave the way for the development of sunlight activated large area self-sterile surfaces.
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Affiliation(s)
- Arshdeep Kaur Gill
- Institute of Nano Science and Technology, Sector - 81, Mohali - 140306, Punjab, India. .,Centre for Nanoscience and Nanotechnology, Panjab University, Sector-25, Chandigarh - 160036, India
| | - Sanchita Shah
- Institute of Nano Science and Technology, Sector - 81, Mohali - 140306, Punjab, India.
| | - Pranjali Yadav
- Institute of Nano Science and Technology, Sector - 81, Mohali - 140306, Punjab, India.
| | - Asifkhan Shanavas
- Institute of Nano Science and Technology, Sector - 81, Mohali - 140306, Punjab, India.
| | - Prakash P Neelakandan
- Institute of Nano Science and Technology, Sector - 81, Mohali - 140306, Punjab, India.
| | - Debabrata Patra
- Institute of Nano Science and Technology, Sector - 81, Mohali - 140306, Punjab, India.
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4
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Musolino S, Shatila F, Tieman GM, Masarsky AC, Thibodeau MC, Wulff JE, Buckley HL. Light-Induced Anti-Bacterial Effect Against Staphylococcus aureus of Porphyrin Covalently Bonded to a Polyethylene Terephthalate Surface. ACS OMEGA 2022; 7:29517-29525. [PMID: 36033695 PMCID: PMC9404523 DOI: 10.1021/acsomega.2c04294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Antimicrobial photodynamic inactivation represents a promising and potentially greener alternative to conventional antimicrobials, and a solution for multidrug-resistant strains. The current study reports the development and characterization of tetra-substituted diazirine porphyrin covalently bonded to polyethylene terephthalate (PET) and its use as an antimicrobial surface. The diazirine moiety on the porphyrin was activated using a temperature of 120 °C, which initiated a C-H insertion mechanism that irreversibly functionalized the PET surface. Activation of the surface with white LED light in phosphate-buffered saline (PBS) led to singlet oxygen generation, which was detected via the degradation of 9,10-anthracenediylbis(methylene)dimalonic acid (ADMA) over time. The bactericidal effect of the 1O2-producing surface against Staphylococcus aureus was determined qualitatively and quantitatively. The growth of the pathogen beneath porphyrin-functionalized PET coupons was reduced; moreover, the PET coupons resulted in a 1.76-log reduction in cell counts after exposure to white LED light for 6 h. This is a promising material and platform for the development of safer antimicrobial surfaces, with applications in healthcare, food packaging, marine surfaces, and other surfaces in the environment.
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Affiliation(s)
- Stefania
F. Musolino
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Fatima Shatila
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Grace M.O. Tieman
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
- Institute
for Integrated Energy Systems (IESVic), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Anna C. Masarsky
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Matthew C. Thibodeau
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Jeremy E. Wulff
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Heather L. Buckley
- Department
of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Department
of Civil Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P
5C2, Canada
- Centre
for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
- Institute
for Integrated Energy Systems (IESVic), University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
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5
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Ye W, Qin M, Qiu R, Li J. Keratin-based wound dressings: From waste to wealth. Int J Biol Macromol 2022; 211:183-197. [PMID: 35513107 DOI: 10.1016/j.ijbiomac.2022.04.216] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 02/08/2023]
Abstract
Keratin is a natural protein with a high content of cysteine residues (7-13%) and is widely found in hair, wool, horns, hooves, and nails. Keratin possesses abundant cell-binding motifs such as leucine-aspartate-valine (LDV), glutamate-aspartate-serine (EDS), and arginine-glycine-aspartate (RGD), which benefit cell attachment and proliferation. It has been confirmed that keratin plays important roles in every stage of wound healing, including hemostasis, inflammation, proliferation, and remodeling, making keratin-based materials good candidates for wound dressings. In combination with synthetic and natural polymers, keratin-based wound dressings in the forms of films, hydrogels, and nanofibers can be achieved with improved mechanical properties. This review focuses on the recent development of keratin-based wound dressings. Firstly, the physicochemical and biological properties of keratin, are systematically discussed. Secondly, the role of keratin in wound healing is proposed. Thirdly, the applications of keratin-based wound dressings are summarized, in terms of the forms and functionalization. Finally, the current challenges and future development of keratin-based wound dressings are presented.
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Affiliation(s)
- Wenjin Ye
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, PR China, 610065
| | - Meng Qin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, PR China, 610065
| | - Rongmin Qiu
- College & Hospital of Stomatology, Guangxi Medical University, Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Health Commission Key Laboratory of Prevention and Treatment for Oral Infectious Diseases, Nanning, Guangxi 530021, PR China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, PR China, 610065; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, PR China; Med-X Center for Materials, Sichuan University, Chengdu, Sichuan 610041, PR China.
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6
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Feng CC, Lu WF, Liu YC, Liu TH, Chen YC, Chien HW, Wei Y, Chang HW, Yu J. A hemostatic keratin/alginate hydrogel scaffold with methylene blue mediated antimicrobial photodynamic therapy. J Mater Chem B 2022; 10:4878-4888. [PMID: 35698997 DOI: 10.1039/d2tb00898j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uncontrollable bleeding and infection are two of the most common causes of trauma-related death. Yet, developing safe materials with high hemostatic and antibacterial effectiveness remains a challenge. Keratin-based biomaterials have been reported to exhibit the functions of enhancing platelet binding and activating and facilitating fibrinogen polymerization. In this study, we designed a hemostatic material with good biodegradability, biocompatibility, hemostatic ability, and antibacterial function to solve the shortcomings of common hemostatic materials. Methylene blue-loaded keratin/alginate composite scaffolds were prepared by the freeze-gelation method. The composite scaffolds exhibited over 1600% liquid absorption, well-interconnected pores, good biocompatibility, and biodegradability. We find that the keratin/alginate composite scaffolds' synergistic action may significantly reduce hemostasis time. To prevent infection, the drug-loaded scaffolds generated high burst release by absorbing wound exudate in the early stages of wound healing. The results obtained by the antimicrobial photoinactivation assay in vitro suggest that an antimicrobial photodynamic effect might be triggered, thereby preventing the fast growth of colonies.
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Affiliation(s)
- Ching-Chih Feng
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Wei-Fan Lu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Yi-Chen Liu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Tai-Hung Liu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Yin-Chuan Chen
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Hsiu-Wen Chien
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 824, Taiwan
| | - Yang Wei
- Department of Chemical Engineering & Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Hui-Wen Chang
- School of Veterinary Medicine, National Taiwan University, Taipei 106, Taiwan
| | - Jiashing Yu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
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7
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Schifino G, Gasparini C, Drudi S, Giannelli M, Sotgiu G, Posati T, Zamboni R, Treossi E, Maccaferri E, Giorgini L, Mazzarro R, Morandi V, Palermo V, Bertoldo M, Aluigi A. Keratin/Polylactic acid/graphene oxide composite nanofibers for drug delivery. Int J Pharm 2022; 623:121888. [PMID: 35716978 DOI: 10.1016/j.ijpharm.2022.121888] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/20/2022] [Accepted: 05/31/2022] [Indexed: 12/18/2022]
Abstract
In this work keratin/poly(lactic acid) (PLA) 50/50 wt blend nanofibers with different loadings of graphene-oxide (GO) were prepared by electrospinning and tested as delivery systems of Rhodamine Blue (RhB), selected as a model of a drug. The effect of GO on the electrospinnability and drug release mechanism and kinetics was investigated. Rheological measurements carried out on the blend solutions revealed unsatisfactory compatibility between keratin and PLA under quiet condition. Accordingly, poor interfacial adhesion between the two phases was observed by SEM analysis of a film prepared by solution casting. On the contrary, keratin chains seem to rearrange under the flux conditions of the electrospinning process thus promoting better interfacial interactions between the two polymers, thereby enhancing their miscibility, which resulted in homogeneous and defect-free nanofibers. The loading of GO into the keratin/PLA solution contributes to increase its viscosity, its shear thinning behavior, and its conductivity. Accordingly, thinner and more homogeneous nanofibers resulted from solutions with a relatively high conductivity coupled with a pronounced shear thinning behavior. FTIR and DSC analyses have underlined, that while the PLA/GO interfacial interactions significantly compete with the PLA/keratin ones, there are no significant effects of GO on the structural organization of keratin in blend with the PLA. However, GO offers several advantages from the application point of view by slightly improving the mechanical properties of the electrospun mats and by slowing down the release of the model drug through the reduction of the matrix swelling.
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Affiliation(s)
- Gioacchino Schifino
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Claudio Gasparini
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Simone Drudi
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Marta Giannelli
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Giovanna Sotgiu
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy; Kerline srl, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Tamara Posati
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Roberto Zamboni
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy; Kerline srl, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Emanuele Treossi
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Emanuele Maccaferri
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Loris Giorgini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Raffaello Mazzarro
- National Research Council, Institute for Microelectronics and Microsystems, Via Piero Gobetti 101, 40129 Bologna, Italy; Department of Physics and Astronomy, Viale Berti Pichat 6/2, Università di Bologna, 40127 Bologna, Italy
| | - Vittorio Morandi
- National Research Council, Institute for Microelectronics and Microsystems, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Vincenzo Palermo
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy
| | - Monica Bertoldo
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy; Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy.
| | - Annalisa Aluigi
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti, 101, 40129 Bologna, Italy; Department of Biomolecular Sciences - School of Pharmacy, University of Urbino, Piazza del Rinascimento 6, 61029 Urbino, Italy; Kerline srl, Via Piero Gobetti 101, 40129 Bologna, Italy.
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8
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An ultra-sensitive near-infrared fluorescent probe based on triphenylamine with high selectivity detecting the keratin. Anal Biochem 2022; 646:114638. [DOI: 10.1016/j.ab.2022.114638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/23/2022] [Accepted: 03/02/2022] [Indexed: 02/02/2023]
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9
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Ma T, Chen Y, Zhi X, Du B. Cellulose laurate films containing curcumin as photoinduced antibacterial agent for meat preservation. Int J Biol Macromol 2021; 193:1986-1995. [PMID: 34767881 DOI: 10.1016/j.ijbiomac.2021.11.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/28/2021] [Accepted: 11/03/2021] [Indexed: 01/13/2023]
Abstract
Hydrophobic cellulose laurate (CL) with high degree of substitution has been successfully synthesized. The mechanical property, water-resistance, antimicrobial activity, barrier properties and food decontamination of cellulose-laurate-curcumin films (CL-Cux, x = 0.1, 0.5, and 1) were investigated. The results showed that the mechanical properties of CL-Cux hardly change after soaking in water for 24 h, probably due to the strong hydrophobicity of cellulose laurate. CL-Cu1 represented a good photoinduced antibacterial effect against S. aureus. After irradiation of white light at 60 mW·cm-2 for 20 min, the inhibition efficiency reached to 95 ± 2.02%, probably owing to the generated active 1O2. In comparison with CL-Cu1 stored in natural light, the bacteriostatic effect of CL-Cu1 in dark storage was better, and the inhibition rate of CL-Cu1 remained 80 ± 1.22 at 60th day. The stabler excited state of curcumin in hydrophobic cellulose laurate was probably assigned to inhibition of tautomerism or conformational transition, which was beneficial to the generation of singlet oxygen. CL-Cu1 can significantly inhibit the growth of TVBN and TVC values of chilled meat upon white light irradiation, indicating the potential application of cellulose-laurate-curcumin films in food decontamination.
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Affiliation(s)
- Tiancong Ma
- Beijing Laboratory of Food Quality and Safety, Beijing Key Laboratory of Agricultural Product Detection and Control of Spoilage Organisms and Pesticide Residue, Faculty of Food Science and Engineering, Beijing University of Agriculture, Beijing 102206, China
| | - Yan Chen
- Beijing Laboratory of Food Quality and Safety, Beijing Key Laboratory of Agricultural Product Detection and Control of Spoilage Organisms and Pesticide Residue, Faculty of Food Science and Engineering, Beijing University of Agriculture, Beijing 102206, China
| | - Xiujuan Zhi
- Beijing Laboratory of Food Quality and Safety, Beijing Key Laboratory of Agricultural Product Detection and Control of Spoilage Organisms and Pesticide Residue, Faculty of Food Science and Engineering, Beijing University of Agriculture, Beijing 102206, China.
| | - Bin Du
- Beijing Laboratory of Food Quality and Safety, Beijing Key Laboratory of Agricultural Product Detection and Control of Spoilage Organisms and Pesticide Residue, Faculty of Food Science and Engineering, Beijing University of Agriculture, Beijing 102206, China.
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10
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Photocatalytic Properties of a Novel Keratin char-TiO2 Composite Films Made through the Calcination of Wool Keratin Coatings Containing TiO2 Precursors. Catalysts 2021. [DOI: 10.3390/catal11111366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, the photocatalytic properties of novel keratin char-TiO2 composite films, made through the calcination of wool keratin coatings containing TiO2 precursors at 400 °C, were investigated for the photodegradation of organic contaminants under visible light irradiation. Its structural characteristics and photocatalytic performance were systematically examined. It was shown that a self-cleaning hydrophobic keratin char-TiO2 composite film containing meso- and micro-pores was formed after the keratin—TiO2 precursors coating was calcined. In comparison with calcinated TiO2 films, the keratin char-TiO2 composite films doped with the elements of C, N, and S from keratins resulted in decreased crystallinity and a larger water contact angle. The bandgap of the char-TiO2 composite films increased slightly from 3.26 to 3.32 eV, and its separation of photogenerated charge carriers was inhibited to a certain degree. However, it exhibited higher photodegradation efficiency to methyl blue (MB) effluents than the pure calcinated TiO2 films. This was mainly because of its special porous structure, large water contact angle, and high adsorption energy towards organic pollutants, confirmed by the density functional theory calculations. The main active species were 1O2 radicals in the MB photodegradation process.
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11
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Goh PS, Othman MHD, Matsuura T. Waste Reutilization in Polymeric Membrane Fabrication: A New Direction in Membranes for Separation. MEMBRANES 2021; 11:782. [PMID: 34677548 PMCID: PMC8541373 DOI: 10.3390/membranes11100782] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/02/2021] [Accepted: 10/09/2021] [Indexed: 01/11/2023]
Abstract
In parallel to the rapid growth in economic and social activities, there has been an undesirable increase in environmental degradation due to the massively produced and disposed waste. The need to manage waste in a more innovative manner has become an urgent matter. In response to the call for circular economy, some solid wastes can offer plenty of opportunities to be reutilized as raw materials for the fabrication of functional, high-value products. In the context of solid waste-derived polymeric membrane development, this strategy can pave a way to reduce the consumption of conventional feedstock for the production of synthetic polymers and simultaneously to dampen the negative environmental impacts resulting from the improper management of these solid wastes. The review aims to offer a platform for overviewing the potentials of reutilizing solid waste in liquid separation membrane fabrication by covering the important aspects, including waste pretreatment and raw material extraction, membrane fabrication and characterizations, as well as the separation performance evaluation of the resultant membranes. Three major types of waste-derived polymeric raw materials, namely keratin, cellulose, and plastics, are discussed based on the waste origins, limitations in the waste processing, and their conversion into polymeric membranes. With the promising material properties and viability of processing facilities, recycling and reutilization of waste resources for membrane fabrication are deemed to be a promising strategy that can bring about huge benefits in multiple ways, especially to make a step closer to sustainable and green membrane production.
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Affiliation(s)
- Pei Sean Goh
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia;
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia;
| | - Takeshi Matsuura
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur St., Ottawa, ON K1N 6N5, Canada;
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12
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López-Fernández AM, Muñoz Resta I, de Llanos R, Galindo F. Photodynamic Inactivation of Pseudomonas aeruginosa by PHEMA Films Loaded with Rose Bengal: Potentiation Effect of Potassium Iodide. Polymers (Basel) 2021; 13:2227. [PMID: 34300985 PMCID: PMC8309320 DOI: 10.3390/polym13142227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 12/19/2022] Open
Abstract
Four formulations have been used to produce different poly(2-hydroxyethyl methacrylate) (PHEMA) thin films, containing singlet oxygen photosensitizer Rose Bengal (RB). The polymers have been characterized employing Thermogravimetric Analysis (TGA), Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) and UV-vis Absorption Spectroscopy. When irradiated with white light (400-700 nm) films generated singlet oxygen (1O2), as demonstrated by the reactivity with 1O2 trap 9,10-dimethylanthracene (DMA). Material with the highest RB loading (polymer A4, 835 nmol RB/g polymer) was able to perform up to ten cycles of DMA oxygenation reactions at high conversion rates (ca. 90%). Polymer A4 was also able to produce the complete eradication of a Pseudomonas aeruginosa planktonic suspension of 8 log10 CFU/mL, when irradiated with white light (total dose 72 J/cm2). The antimicrobial photodynamic effect was remarkably enhanced by adding potassium iodide (100 mM). In such conditions the complete bacterial reduction occurred with a total light dose of 24 J/cm2. Triiodide anion (I3-) generation was confirmed by UV-vis absorption spectroscopy. This species was detected inside the PHEMA films after irradiation and at concentrations ca. 1 M. The generation of this species and its retention in the matrix imparts long-lasting bactericidal effects to the RB@PHEMA polymeric hydrogels. The polymers here described could find potential applications in the medical context, when optimized for their use in everyday objects, helping to prevent bacterial contagion by contact with surfaces.
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Affiliation(s)
- Ana M. López-Fernández
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain; (A.M.L.-F.); (I.M.R.)
| | - Ignacio Muñoz Resta
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain; (A.M.L.-F.); (I.M.R.)
| | - Rosa de Llanos
- Unidad Predepartamental de Medicina, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071 Castellón, Spain; (A.M.L.-F.); (I.M.R.)
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13
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Fabrication of Photoactive Electrospun Cellulose Acetate Nanofibers for Antibacterial Applications. ENERGIES 2021. [DOI: 10.3390/en14092598] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The aim of the study was to investigate the process of electrostatic fabrication of cellulose acetate (CA) nanofibers containing methylene blue (MB) as a photosensitizer. The electrical, physicochemical, and biocidal properties of the prepared material were given. CA nanofibers were prepared by electrospinning method using a solvent mixture of acetone and distilled water (9:1 vv−1) and different concentrations of CA (i.e., 10–21%). Additionally, methylene blue was implemented into the polymer solution with a CA concentration of 17% to obtain fibers with photo-bactericidal properties. Pure electrospun CA fibers were more uniform than fibers with MB (i.e., ribbon shape). Fiber diameters did not exceed 900 nm for the tested polymer solutions and flow rate below 1.0 mL h−1. The polymer properties (i.e., concentration, resistivity) and other parameters of the process (i.e., flow rate, an applied voltage) strongly influenced the size of the fibers. Plasma treatment of nanofibers resulted in reduced biofilm formation on their surface. The results of photo-bactericidal activity (i.e., up to 180 min) confirmed the high efficiency of inactivation of Staphylococcus aureus cells using fibers containing methylene blue (i.e., with and without plasma treatment). The most effective reduction in the number of biofilm cells was equal to 99.99 ± 0.3%.
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14
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Chen L, Song Z, Zhi X, Du B. Photoinduced Antimicrobial Activity of Curcumin-Containing Coatings: Molecular Interaction, Stability and Potential Application in Food Decontamination. ACS OMEGA 2020; 5:31044-31054. [PMID: 33324812 PMCID: PMC7726744 DOI: 10.1021/acsomega.0c04065] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 10/26/2020] [Indexed: 06/01/2023]
Abstract
Polyvinyl acetate (PVAc) and curcumin (Cu) were utilized for preparing new protecting PVAc-Cu x (x = 1, 5 and 10) coatings exerting antimicrobial photodynamic activity upon white light irradiation. Toward Salmonella typhimurium or Staphylococcus aureus, the killing efficiency represented the dependence on the Cu concentration and irradiation intensity. Toward S. aureus, the killing efficiency of PVAc-Cu 10 coating reached 93% at an energy density of 72 J/cm2. With the change in storage time of coating, the results implied significant stability of photosterilization efficiency within 60 days. Compared with the control experiment, lower total viable counts (TVCs) and total volatile basic nitrogen (TVB-N) values in fresh meat packaged by PVDC films with PVAc-Cu 10 coatings during storage at 4 °C demonstrated the practicability of the PVAc-Cu x coatings in decontaminating fresh pork. PVAc packed curcumin tightly within polymer chains, thus preventing tautomerization or, more probably, conformational transition, which is advantageous for improving photostability and emission lifetime.
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Affiliation(s)
- Liwei Chen
- Beijing Laboratory of Food Quality
and Safety, Beijing Key Laboratory of Agricultural Product Detection
and Control of Spoilage Organisms and Pesticide Residue, Faculty of
Food Science and Engineering, Beijing University
of Agriculture, Beijing 102206, China
| | - Ziyue Song
- Beijing Laboratory of Food Quality
and Safety, Beijing Key Laboratory of Agricultural Product Detection
and Control of Spoilage Organisms and Pesticide Residue, Faculty of
Food Science and Engineering, Beijing University
of Agriculture, Beijing 102206, China
| | - Xiujuan Zhi
- Beijing Laboratory of Food Quality
and Safety, Beijing Key Laboratory of Agricultural Product Detection
and Control of Spoilage Organisms and Pesticide Residue, Faculty of
Food Science and Engineering, Beijing University
of Agriculture, Beijing 102206, China
| | - Bin Du
- Beijing Laboratory of Food Quality
and Safety, Beijing Key Laboratory of Agricultural Product Detection
and Control of Spoilage Organisms and Pesticide Residue, Faculty of
Food Science and Engineering, Beijing University
of Agriculture, Beijing 102206, China
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15
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Boccalon E, Gorrasi G, Nocchetti M. Layered double hydroxides are still out in the bloom: Syntheses, applications and advantages of three-dimensional flower-like structures. Adv Colloid Interface Sci 2020; 285:102284. [PMID: 33164779 DOI: 10.1016/j.cis.2020.102284] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/09/2020] [Accepted: 10/09/2020] [Indexed: 01/08/2023]
Abstract
Layered double hydroxides (LDHs) have received great attention for years in numerous fields. Controlled and flexible layer composition, as well as the vast assortment of possible anionic guests, and easy adaptability for multipurpose applications, have been some of the many reasons behind their extraordinary success. However, versatility does not only involve the composition or the dimensions of the crystals but also their morphology. Aside from conventional hexagonal, flat structures, three-dimensional assemblies have been reported with architectures closely resembling those of flowers. The possibility of interconnecting the LDH nanosheets in rosette-like geometries has arisen the interest in finding new ways to control, modulate, and guide the particle growth obtaining hierarchical structures to be adapted to specific targets. This review is focused on describing the different strategies implemented to build flower-like assemblies, and on investigating their applications, looking for specific advantages of the use of a three-dimensional architecture over a bi-dimensional one.
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Affiliation(s)
- Elisa Boccalon
- Department of Industrial Engineering, Via Giovanni Paolo II 132, University of Salerno, 84084 Salerno, Italy
| | - Giuliana Gorrasi
- Department of Industrial Engineering, Via Giovanni Paolo II 132, University of Salerno, 84084 Salerno, Italy.
| | - Morena Nocchetti
- Department of Pharmaceutical Sciences, Via del Liceo 1, University of Perugia, 06123 Perugia, Italy
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16
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Imani SM, Ladouceur L, Marshall T, Maclachlan R, Soleymani L, Didar TF. Antimicrobial Nanomaterials and Coatings: Current Mechanisms and Future Perspectives to Control the Spread of Viruses Including SARS-CoV-2. ACS NANO 2020; 14:12341-12369. [PMID: 33034443 PMCID: PMC7553040 DOI: 10.1021/acsnano.0c05937] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/01/2020] [Indexed: 05/05/2023]
Abstract
The global COVID-19 pandemic has attracted considerable attention toward innovative methods and technologies for suppressing the spread of viruses. Transmission via contaminated surfaces has been recognized as an important route for spreading SARS-CoV-2. Although significant efforts have been made to develop antibacterial surface coatings, the literature remains scarce for a systematic study on broad-range antiviral coatings. Here, we aim to provide a comprehensive overview of the antiviral materials and coatings that could be implemented for suppressing the spread of SARS-CoV-2 via contaminated surfaces. We discuss the mechanism of operation and effectivity of several types of inorganic and organic materials, in the bulk and nanomaterial form, and assess the possibility of implementing these as antiviral coatings. Toxicity and environmental concerns are also discussed for the presented approaches. Finally, we present future perspectives with regards to emerging antimicrobial technologies such as omniphobic surfaces and assess their potential in suppressing surface-mediated virus transfer. Although some of these emerging technologies have not yet been tested directly as antiviral coatings, they hold great potential for designing the next generation of antiviral surfaces.
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Affiliation(s)
- Sara M. Imani
- School of Biomedical Engineering,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
| | - Liane Ladouceur
- School of Biomedical Engineering,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
| | - Terrel Marshall
- Department of Engineering Physics,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
| | - Roderick Maclachlan
- Department of Engineering Physics,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
| | - Leyla Soleymani
- School of Biomedical Engineering,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
- Department of Engineering Physics,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
| | - Tohid F. Didar
- School of Biomedical Engineering,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
- Department of Mechanical Engineering,
McMaster University, 1280 Main Street
West, Hamilton, ON L8S 4L7, Canada
- Michael G. DeGroote Institute of
Infectious Disease Research, McMaster
University, Hamilton, ON L8N 3Z5,
Canada
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17
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Feroz S, Muhammad N, Ranayake J, Dias G. Keratin - Based materials for biomedical applications. Bioact Mater 2020; 5:496-509. [PMID: 32322760 PMCID: PMC7171262 DOI: 10.1016/j.bioactmat.2020.04.007] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/27/2020] [Accepted: 04/06/2020] [Indexed: 12/22/2022] Open
Abstract
Keratin constitutes the major component of the feather, hair, hooves, horns, and wool represents a group of biological material having high cysteine content (7-13%) as compared to other structural proteins. Keratin -based biomaterials have been investigated extensively over the past few decades due to their intrinsic biological properties and excellent biocompatibility. Unlike other natural polymers such as starch, collagen, chitosan, the complex three-dimensional structure of keratin requires the use of harsh chemical conditions for their dissolution and extraction. The most commonly used methods for keratin extraction are oxidation, reduction, steam explosion, microbial method, microwave irradiation and use of ionic liquids. Keratin -based materials have been used extensively for various biomedical applications such as drug delivery, wound healing, tissue engineering. This review covers the structure, properties, history of keratin research, methods of extraction and some recent advancements related to the use of keratin derived biomaterials in the form of a 3-D scaffold, films, fibers, and hydrogels.
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Affiliation(s)
- Sandleen Feroz
- Department of Anatomy, School of Biomedical Sciences University of Otago, Otago, 9016, New Zealand
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Pakistan
| | - Jithendra Ranayake
- Department of Anatomy, School of Biomedical Sciences University of Otago, Otago, 9016, New Zealand
| | - George Dias
- Department of Anatomy, School of Biomedical Sciences University of Otago, Otago, 9016, New Zealand
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18
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Guidotti G, Soccio M, Posati T, Sotgiu G, Tiboni M, Barbalinardo M, Valle F, Casettari L, Zamboni R, Lotti N, Aluigi A. Regenerated wool keratin-polybutylene succinate nanofibrous mats for drug delivery and cells culture. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109272] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Contreras A, Raxworthy MJ, Wood S, Tronci G. Hydrolytic Degradability, Cell Tolerance and On-Demand Antibacterial Effect of Electrospun Photodynamically Active Fibres. Pharmaceutics 2020; 12:E711. [PMID: 32751391 PMCID: PMC7465204 DOI: 10.3390/pharmaceutics12080711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 01/17/2023] Open
Abstract
Photodynamically active fibres (PAFs) are a novel class of stimulus-sensitive systems capable of triggering antibiotic-free antibacterial effect on-demand when exposed to light. Despite their relevance in infection control, however, the broad clinical applicability of PAFs has not yet been fully realised due to the limited control in fibrous microstructure, cell tolerance and antibacterial activity in the physiologic environment. We addressed this challenge by creating semicrystalline electrospun fibres with varying content of poly[(l-lactide)-co-(glycolide)] (PLGA), poly(ε-caprolactone) (PCL) and methylene blue (MB), whereby the effect of polymer morphology, fibre composition and photosensitiser (PS) uptake on wet state fibre behaviour and functions was studied. The presence of crystalline domains and PS-polymer secondary interactions proved key to accomplishing long-lasting fibrous microstructure, controlled mass loss and controlled MB release profiles (37 °C, pH 7.4, 8 weeks). PAFs with equivalent PLGA:PCL weight ratio successfully promoted attachment and proliferation of L929 cells over a 7-day culture with and without light activation, while triggering up to 2.5 and 4 log reduction in E. coli and S. mutans viability, respectively. These results support the therapeutic applicability of PAFs for frequently encountered bacterial infections, opening up new opportunities in photodynamic fibrous systems with integrated wound healing and infection control capabilities.
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Affiliation(s)
- Amy Contreras
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK; (A.C.); (M.J.R.)
| | - Michael J. Raxworthy
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK; (A.C.); (M.J.R.)
- Neotherix Ltd., The Hiscox Building, Peasholme Green, York YO1 7PR, UK
| | - Simon Wood
- School of Dentistry, St. James’s University Hospital, University of Leeds, Leeds LS9 7TF, UK;
| | - Giuseppe Tronci
- School of Dentistry, St. James’s University Hospital, University of Leeds, Leeds LS9 7TF, UK;
- Clothworkers Centre for Textile Materials Innovation for Healthcare, School of Design, University of Leeds, Leeds LS2 9JT, UK
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20
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Su C, Gong JS, Ye JP, He JM, Li RY, Jiang M, Geng Y, Zhang Y, Chen JH, Xu ZH, Shi JS. Enzymatic Extraction of Bioactive and Self-Assembling Wool Keratin for Biomedical Applications. Macromol Biosci 2020; 20:e2000073. [PMID: 32691954 DOI: 10.1002/mabi.202000073] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/20/2020] [Indexed: 12/30/2022]
Abstract
Keratin is widely recognized as a high-quality renewable protein resource for biomedical applications. Despite their extensive existence, keratin resources such as feathers, wool, and hair exhibit high stability and mechanical properties because of their high disulfide bond content. Consequently, keratin extraction is challenging and its application is greatly hindered. In this work, a biological extraction strategy is proposed for the preparation of bioactive keratin and the fabrication of self-assembled keratin hydrogels (KHs). Based on moderate and controlled hydrolysis by keratinase, keratin with a high molecular weight of approximately 45 and 28 kDa that retain its intrinsic bioactivities is obtained. The keratin products show excellent ability to promote cell growth and migration and are conferred with significant antioxidant ability because of their intrinsically high cysteine content. In addition, without the presence of any cross-linking agent, the extracted keratin can self-assemble into injectable hydrogels. The KHs exhibit a porous network structure and 3D culture ability, showing potential in promoting wound healing. This enzyme-driven keratin extraction strategy opens up a new approach for the preparation of keratin that can self-assemble into injectable hydrogels for biomedical engineering.
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Affiliation(s)
- Chang Su
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jin-Song Gong
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jin-Peng Ye
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Ji-Meng He
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Rui-Yi Li
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Min Jiang
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Yan Geng
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Yan Zhang
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jing-Hua Chen
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Zheng-Hong Xu
- Prof. Z.-H. Xu, National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China.,Prof. Z.-H. Xu, Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jin-Song Shi
- C. Su, Dr. J.-S. Gong, J.-P. Ye, J.-M. He, Dr. R.-Y. Li, M. Jiang, Dr. Y. Geng, Dr. Y. Zhang, Prof. J.-H. Chen, Prof. J.-S, Shi, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
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21
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Zhang C, Xia L, Zhang J, Liu X, Xu W. Utilization of waste wool fibers for fabrication of wool powders and keratin: a review. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2020. [DOI: 10.1186/s42825-020-00030-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Ramya KR, Thangam R, Madhan B. Comparative analysis of the chemical treatments used in keratin extraction from red sheep’s hair and the cell viability evaluations of this keratin for tissue engineering applications. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.11.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Contreras A, Raxworthy MJ, Wood S, Schiffman JD, Tronci G. Photodynamically Active Electrospun Fibers for Antibiotic-Free Infection Control. ACS APPLIED BIO MATERIALS 2019; 2:4258-4270. [PMID: 35021441 DOI: 10.1021/acsabm.9b00543] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Antimicrobial biomaterials are critical to aid in the regeneration of oral soft tissue and prevent or treat localized bacterial infections. With the rising trend in antibiotic resistance, there is a pressing clinical need for new antimicrobial chemistries and biomaterial design approaches enabling on-demand activation of antibiotic-free antimicrobial functionality following an infection that are environment-friendly, flexible and commercially viable. This study explores the feasibility of integrating a bioresorbable electrospun polymer scaffold with localized antimicrobial photodynamic therapy (aPDT) capability. To enable aPDT, we encapsulated a photosensitizer (PS) in polyester fibers in the PS inert state, so that the antibacterial function would be activated on-demand via a visible light source. Fibrous scaffolds were successfully electrospun from FDA-approved polyesters, either poly(ε-caprolactone (PCL) or poly[(rac-lactide)-co-glycolide] (PLGA), with encapsulated PS (either methylene blue (MB) or erythrosin B (ER)). These were prepared and characterized with regards to their loading efficiency (UV-vis spectroscopy), microarchitecture (SEM, porometry, and BET (Brunauer-Emmett-Teller) analysis), tensile properties, hydrolytic behavior (contact angle, dye release capability, degradability), and aPDT effect. The electrospun fibers achieved an ∼100 wt % loading efficiency of PS, which significantly increased their tensile modulus and reduced their average fiber diameter and pore size with respect to PS-free controls. In vitro, PS release varied between a burst release profile to limited release within 100 h, depending on the selected scaffold formulation, while PLGA scaffolds displayed significant macroscopic shrinkage and fiber merging, following incubation in phosphate buffered saline solution. Exposure of PS-encapsulated PCL fibers to visible light successfully led to at least a 1 log reduction in Escherichia coli viability after 60 min of light exposure, whereas PS-free electrospun controls did not inactive microbes. This study successfully demonstrates the significant potential of PS-encapsulated electrospun fibers as photodynamically active biomaterial for antibiotic-free infection control.
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Affiliation(s)
- Amy Contreras
- Institute of Medical and Biological Engineering, University of Leeds, Leeds, LS2 9JT U.K
| | - Michael J Raxworthy
- Institute of Medical and Biological Engineering, University of Leeds, Leeds, LS2 9JT U.K.,Neotherix Ltd., The Hiscox Building, Peasholme Green, York, YO1 7PR U.K
| | - Simon Wood
- School of Dentistry, University of Leeds, Leeds, LS2 9JT U.K
| | - Jessica D Schiffman
- Department of Chemical Engineering, University of Massachusetts Amherst, 240 Thatcher Road, Amherst Massachusetts 01003-9364, United States
| | - Giuseppe Tronci
- School of Dentistry, University of Leeds, Leeds, LS2 9JT U.K.,School of Design, University of Leeds, Leeds, LS2 9JT U.K
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24
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Chen W, Chen J, Li L, Wang X, Wei Q, Ghiladi RA, Wang Q. Wool/Acrylic Blended Fabrics as Next-Generation Photodynamic Antimicrobial Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:29557-29568. [PMID: 31356046 DOI: 10.1021/acsami.9b09625] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The adoption of self-sterilizing materials to reduce infection transmission in hospitals and related healthcare facilities has been hampered by the availability of scalable, cost-effective, and potent antimicrobial textiles. Here, we investigated whether photodynamic materials comprising photosensitizer-embedded wool/acrylic blends were able to mediate the photodynamic inactivation of Gram-positive and Gram-negative bacteria. A small library of wool/acrylic (W/A) blended fabrics was constructed wherein the wool fibers were embedded with rose Bengal (RB) as a photosensitizer and the acrylic fibers were dyed with a traditional cationic yellow X-8GL dye, thereby enabling a broader color palette than was achievable with a single photosensitizer. The resultant photodynamic materials were characterized by physical (SEM, DSC, TGA, tensile strength), spectroscopic (fluorescence), colorimetric (K/S and CIELab values), and color fastness (against rubbing, washing) studies, and their photooxidation of the model substrate potassium iodide demonstrated the ability of these materials to generate microbicidal reactive oxygen species (i.e., singlet oxygen) upon illumination. Our best results yielded the photodynamic inactivation of Gram-positive S. aureus (99.98%) and B. subtilis (99.993%) by ∼4 log units upon illumination with visible light (60 min; 65 ± 5 mW/cm2; λ ≥ 420 nm), although more modest activity was observed against Gram-negative P. aeruginosa and E. coli (1-2 log units pathogen reduction). While there were no statistically significant differences for dual-dyed materials that were produced through either sequential or simultaneous dyeing steps, it was noted that high loadings of the cationic yellow X-8GL dye did inhibit the antimicrobial activity of the RB photosensitizer, with the dual-dyed materials able to mediate a 2.9 log unit reduction against S. aureus at a 1% o.w.f X-8GL loading. These findings indicate that the antimicrobial photodynamic inactivation of dual-dyed materials is independent of the dyeing process itself, yet exhibits limitations on the loading of the traditional dye with regards to the activity of the photosensitizer. Taken together, the results suggest the feasibility of photosensitizer-embedded blended fabrics produced through a one-step dyeing process as a low-cost and scalable method for creating effective self-disinfecting textiles for infection prevention, and whose inclusion of a second traditional dye for color variation will further benefit their adoption from a commercial standpoint.
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Affiliation(s)
- Wangbingfei Chen
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Jiang Chen
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Ling Li
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Xinyi Wang
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Qufu Wei
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Reza A Ghiladi
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Qingqing Wang
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
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Li Y, Guo R, Lu W, Zhu D. Research progress on resource utilization of leather solid waste. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2019. [DOI: 10.1186/s42825-019-0008-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Natali M, Campana A, Posati T, Benvenuti E, Prescimone F, Ramirez DOS, Varesano A, Vineis C, Zamboni R, Muccini M, Aluigi A, Toffanin S. Engineering of keratin functionality for the realization of bendable all-biopolymeric micro-electrode array as humidity sensor. Biosens Bioelectron 2019; 141:111480. [PMID: 31272056 DOI: 10.1016/j.bios.2019.111480] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/15/2019] [Accepted: 06/25/2019] [Indexed: 12/22/2022]
Abstract
The technological quest for flexible devices to be interfaced with the biological world has driven the recent reinvention of bioderived polymers as multifunctional active and passive constituent elements for electronic and photonic devices to use in the biomedical field. Keratin is one of the most important structural proteins in nature to be used as biomaterial platform in view of the recently reported advances in the extraction and processing from hair and wool fibers. In this article we report for the first time the simultaneous use of naturally extracted keratin as both active ionic electrolyte for water ions sensing and as bendable and insoluble substrate into the same multielectrode array-based device. We implemented the multifunctional system exclusively made by keratin as a bendable sensor for monitoring the humidity flow. The enhancement of the functional and structural properties of keratin such as bendability and insolubility were obtained by unprecedented selective chemical doping. The mechanisms at the basis of the sensing of humidity in the device were investigated by cyclic voltammetry and rationalized by reversible binding and extraction of water ions from the volume of the keratin active layer, while the figures of merit of the biopolymer such as the ionic conductivity and relaxation time were determined by means of electrical impedance and dielectric relaxation spectroscopy. A reliable linear correlation between the controlled-humidity level and the amperometric output signal together with the assessment on measure variance are demonstrated. Collectively, the fine-tuned ionic-electrical characterization and the validation in controlled conditions of the free-standing insoluble all-keratin made microelectrode array ionic sensor pave the way for the effective use of keratin biopolymer in wearable or edible electronics where conformability, reliability and biocompatibility are key-enabling features.
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Affiliation(s)
- M Natali
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy.
| | - A Campana
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - T Posati
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Via P. Gobetti 101, 40129, Bologna, Italy
| | - E Benvenuti
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - F Prescimone
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - D O Sanchez Ramirez
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato (STIIMA), Corso Giuseppe Pella 16, 13900, Biella, Italy
| | - A Varesano
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato (STIIMA), Corso Giuseppe Pella 16, 13900, Biella, Italy
| | - C Vineis
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato (STIIMA), Corso Giuseppe Pella 16, 13900, Biella, Italy
| | - R Zamboni
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Via P. Gobetti 101, 40129, Bologna, Italy
| | - M Muccini
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy
| | - A Aluigi
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Via P. Gobetti 101, 40129, Bologna, Italy
| | - S Toffanin
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, 40129, Bologna, Italy.
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Sun B, Zhang Y, Li W, Xu X, Zhang H, Zhao Y, Lin J, Sun D. Facile synthesis and light-induced antibacterial activity of ketoprofen functionalized bacterial cellulose membranes. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.01.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Petrizza L, Le Bechec M, Decompte E, El Hadri H, Lacombe S, Save M. Tuning photosensitized singlet oxygen production from microgels synthesized by polymerization in aqueous dispersed media. Polym Chem 2019. [DOI: 10.1039/c9py00157c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Miniemulsion copolymerization of vinyl acetate, N-vinylcaprolactam, vinyl benzyl Rose Bengal and divinyl adipate to synthesize switchable photosensitizer-grafted polymer colloids for interfacial photooxygenation reactions.
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Affiliation(s)
- Luca Petrizza
- CNRS/Univ. Pau & Pays Adour/E2S UPPA
- IPREM
- Institut des sciences analytiques et de Physicochimie pour l'environnement et les Matériaux
- PAU cedex 9
- France
| | - Mickael Le Bechec
- CNRS/Univ. Pau & Pays Adour/E2S UPPA
- IPREM
- Institut des sciences analytiques et de Physicochimie pour l'environnement et les Matériaux
- PAU cedex 9
- France
| | - Emile Decompte
- CNRS/Univ. Pau & Pays Adour/E2S UPPA
- IPREM
- Institut des sciences analytiques et de Physicochimie pour l'environnement et les Matériaux
- PAU cedex 9
- France
| | - Hind El Hadri
- CNRS/Univ. Pau & Pays Adour/E2S UPPA
- IPREM
- Institut des sciences analytiques et de Physicochimie pour l'environnement et les Matériaux
- PAU cedex 9
- France
| | - Sylvie Lacombe
- CNRS/Univ. Pau & Pays Adour/E2S UPPA
- IPREM
- Institut des sciences analytiques et de Physicochimie pour l'environnement et les Matériaux
- PAU cedex 9
- France
| | - Maud Save
- CNRS/Univ. Pau & Pays Adour/E2S UPPA
- IPREM
- Institut des sciences analytiques et de Physicochimie pour l'environnement et les Matériaux
- PAU cedex 9
- France
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Shavandi A, Silva TH, Bekhit AA, Bekhit AEDA. Keratin: dissolution, extraction and biomedical application. Biomater Sci 2018; 5:1699-1735. [PMID: 28686242 DOI: 10.1039/c7bm00411g] [Citation(s) in RCA: 172] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Keratinous materials such as wool, feathers and hooves are tough unique biological co-products that usually have high sulfur and protein contents. A high cystine content (7-13%) differentiates keratins from other structural proteins, such as collagen and elastin. Dissolution and extraction of keratin is a difficult process compared to other natural polymers, such as chitosan, starch, collagen, and a large-scale use of keratin depends on employing a relatively fast, cost-effective and time efficient extraction method. Keratin has some inherent ability to facilitate cell adhesion, proliferation, and regeneration of the tissue, therefore keratin biomaterials can provide a biocompatible matrix for regrowth and regeneration of the defective tissue. Additionally, due to its amino acid constituents, keratin can be tailored and finely tuned to meet the exact requirement of degradation, drug release or incorporation of different hydrophobic or hydrophilic tails. This review discusses the various methods available for the dissolution and extraction of keratin with emphasis on their advantages and limitations. The impacts of various methods and chemicals used on the structure and the properties of keratin are discussed with the aim of highlighting options available toward commercial keratin production. This review also reports the properties of various keratin-based biomaterials and critically examines how these materials are influenced by the keratin extraction procedure, discussing the features that make them effective as biomedical applications, as well as some of the mechanisms of action and physiological roles of keratin. Particular attention is given to the practical application of keratin biomaterials, namely addressing the advantages and limitations on the use of keratin films, 3D composite scaffolds and keratin hydrogels for tissue engineering, wound healing, hemostatic and controlled drug release.
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Affiliation(s)
- Amin Shavandi
- Center for Materials Science and Technology, University of Otago, Dunedin, New Zealand.
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Ramakrishnan N, Sharma S, Gupta A, Alashwal BY. Keratin based bioplastic film from chicken feathers and its characterization. Int J Biol Macromol 2018; 111:352-358. [PMID: 29320725 DOI: 10.1016/j.ijbiomac.2018.01.037] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 01/18/2023]
Abstract
Plastics have been one of the highly valued materials and it plays an significant role in human's life such as in food packaging and biomedical applications. Bioplastic materials can gradually work as a substitute for various materials based on fossil oil. The issue like sustainability and environmental challenges which occur due to manufacturing and disposal of synthetic plastics can be conquering by bio-based plastics. Feathers are among the most inexpensive abundant, and renewable protein sources. Feathers disposal to the landfills leads to environmental pollutions and it results into wastage of 90% of protein raw material. Keratin is non-burning hydrophilic, and biodegradable due to which it can be applicable in various ways via chemical processing. Main objective of this research is to synthesis bioplastic using keratin from chicken feathers. Extracted keratin solution mixed with different concentration of glycerol (2 to 10%) to produce plastic films. The mixture was stirred under constant magnetic stirring at 60 °C for 5 h. The mixtures are then poured into aluminum weighing boat and dried in an oven at 60 °C for 24 h. The mechanical properties of the samples were tested and the physic-chemical properties of the bioplastic were studied. According to the results, Scanning Electron Microscopy test showed good compatible morphologies without holes, cavity and edge. The difference in chemical composition was analyzed using Fourier transform infrared spectroscopy (FTIR). The samples were also characterized by thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC), X-Ray diffraction (XRD) to check the thermal and crystallinity properties. Other than that, bioplastic made up from keratin with 2% of glycerol has the best mechanical and thermal properties. According to biodegradability test, all bioplastic produced are proven biodegradable. Therefore, the results showed possible application of the film as an alternative to fossil oil based materials which are harmful to the environment.
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Affiliation(s)
- Navina Ramakrishnan
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia
| | - Swati Sharma
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia.
| | - Arun Gupta
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia.
| | - Basma Yahya Alashwal
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia
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Jain R, Abbasi R, Nelson K, Busche D, Lynn DM, Abbott NL. Generation of Gaseous ClO 2 from Thin Films of Solid NaClO 2 by Sequential Exposure to Ultraviolet Light and Moisture. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16594-16603. [PMID: 28409922 DOI: 10.1021/acsami.6b16570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report that thin films of solid sodium chlorite (NaClO2) can be photochemically activated by irradiation with ultraviolet (UV) light to generate gaseous chlorine dioxide (ClO2) upon subsequent exposure to moisture. The limiting role of water in the reaction is evidenced by an increase in yield of ClO2 with relative humidity of the gas stream passed over the UV-activated salt. The UV-activated state of the NaClO2 was found to possess a half-life of 48 h, revealing the presence of long-lived UV activated species that subsequently react with water to produce gaseous ClO2. The yield of ClO2 was determined to be proportional to the surface area of NaClO2 particles projected to the incident illumination, consistent with activation of a ∼10 nm-thick layer of NaClO2 at the surface of the micrometer-sized salt crystals (for an activation wavelength of 254 nm). We also found that the quantity of ClO2 released can be tuned ∼10-fold by varying wavelength of UV irradiation and relative humidity of the gas stream passed over the UV-activated NaClO2. The UV-activated species were not detectable by electron paramagnetic resonance spectroscopy, indicating that the activated intermediate is not an excited triplet state of ClO2-. Additionally, neither X-ray photoelectron spectroscopy, nor Raman spectroscopy, nor attenuated total reflection infrared spectroscopy revealed the identity of the activated intermediate species. The ability to preactivate solid phase chlorite salt for subsequent generation of ClO2 upon exposure to moisture suggests the basis of new materials and methods that permit triggered release of ClO2 in contexts that use its disinfectant properties.
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Affiliation(s)
- Rishabh Jain
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison , 1415 Engineering Drive, Madison, Wisconsin 53706, United States
- Bemis Company, Inc. , 2301 Industrial Drive, Neenah, Wisconsin 54956, United States
| | - Reza Abbasi
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison , 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Kevin Nelson
- Bemis Company, Inc. , 2301 Industrial Drive, Neenah, Wisconsin 54956, United States
| | - David Busche
- Bemis Company, Inc. , 2301 Industrial Drive, Neenah, Wisconsin 54956, United States
| | - David M Lynn
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison , 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Nicholas L Abbott
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison , 1415 Engineering Drive, Madison, Wisconsin 53706, United States
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Koo MA, Kim BJ, Lee MH, Kwon BJ, Kim MS, Seon GM, Kim D, Nam KC, Wang KK, Kim YR, Park JC. Controlled Delivery of Extracellular ROS Based on Hematoporphyrin-Incorporated Polyurethane Film for Enhanced Proliferation of Endothelial Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28448-28457. [PMID: 27696825 DOI: 10.1021/acsami.6b07628] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The principle of photodynamic treatment (PDT) involves the administration of photosensitizer (PS) at diseased tissues, followed by light irradiation to produce reactive oxygen species (ROS). In cells, a moderate increase in ROS plays an important role as signaling molecule to promote cell proliferation, whereas a severe increase of ROS causes cell damage. Previous studies have shown that low levels of ROS stimulate cell growth through PS drugs-treating PDT and nonthermal plasma treatment. However, these methods have side effects which are associated with low tissue selectivity and remaining of PS residues. To overcome such shortcomings, we designed hematoporphyrin-incorporated polyurethane (PU) film induced generation of extracellular ROS with singlet oxygen and free radicals. The film can easily control ROS production rate by regulating several parameters including light dose, PS dose. Also, its use facilitates targeted delivery of ROS to the specific lesion. Our study demonstrated that extracellular ROS could induce the formation of intracellular ROS. In vascular endothelial cells, a moderated increase in intracellular ROS also stimulated cell proliferation and cell cycle progression by accurate control of optimum levels of ROS with hematoporphyrin-incorporated polymer films. This modulation of cellular growth is expected to be an effective strategy for the design of next-generation PDT.
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Affiliation(s)
| | - Bong-Jin Kim
- Department of Chemistry, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | | | | | | | | | | | - Ki Chang Nam
- Department of Medical Engineering, Dongguk University College of Medicine , Gyeonggi-do 10326, Republic of Korea
| | - Kang-Kyun Wang
- Department of Chemistry, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Yong-Rok Kim
- Department of Chemistry, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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Ferroni C, Sotgiu G, Sagnella A, Varchi G, Guerrini A, Giuri D, Polo E, Orlandi VT, Marras E, Gariboldi M, Monti E, Aluigi A. Wool Keratin 3D Scaffolds with Light-Triggered Antimicrobial Activity. Biomacromolecules 2016; 17:2882-90. [PMID: 27463471 DOI: 10.1021/acs.biomac.6b00697] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Photoactivatable keratin sponges were prepared from protein aqueous solutions by the freeze-drying method, followed by photofunctionalization with two different photosensitizers (PS): Azure A (AzA) and 5,10,15,20-tetrakis [4-(2-N,N,N-trimethylethylthio)-2,3,5,6-tetrafluorophenyl]porphyrin tetraiodide salt (TTFAP). The prepared sponges have a porosity between 49% and 80% and a mean pore size in the 37-80 μm range. As compared to AzA, TTFAP interacts more strongly with the sponges as demonstrated by a lower PS release (6% vs 20%), a decreased swelling ratio (1.6 vs 7.4), and a slower biodegradation rate. Nevertheless, AzA-loaded sponges showed the highest photoactivity, as also demonstrated by their higher antibactericidal activity toward both Gram-positive and Gram-negative bacteria. The obtained results suggest that the antimicrobial photodynamic effect can be finely triggered through a proper selection of the amount and type of photosensitizer, as well as through the irradiation time. Finally, all the prepared sponges support human fibroblast cells growth, while no significant cell viability impairment is observed upon light irradiation.
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Affiliation(s)
- Claudia Ferroni
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Giovanna Sotgiu
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Anna Sagnella
- MIST E-R Laboratory, via P. Gobetti 101, 40129 Bologna, Italy
| | - Greta Varchi
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Andrea Guerrini
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Demetra Giuri
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Eleonora Polo
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, UOS Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Viviana Teresa Orlandi
- Dipartimento di Biotecnologie e Scienze della Vita (DBSV), Università degli Studi dell'Insubria, Via Dunant 3, Varese, Italy
| | - Emanuela Marras
- Dipartimento di Biotecnologie e Scienze della Vita (DBSV), Università degli Studi dell'Insubria, Via Dunant 3, Varese, Italy
| | - Marzia Gariboldi
- Dipartimento di Biotecnologie e Scienze della Vita (DBSV), Università degli Studi dell'Insubria, Via Dunant 3, Varese, Italy
| | - Elena Monti
- Dipartimento di Biotecnologie e Scienze della Vita (DBSV), Università degli Studi dell'Insubria, Via Dunant 3, Varese, Italy
| | - Annalisa Aluigi
- Institute of Organic Synthesis and Photoreactivity - Italian National Research Council, Via P. Gobetti 101, 40129 Bologna, Italy
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Lacombe S, Pigot T. Materials for selective photo-oxygenation vs. photocatalysis: preparation, properties and applications in environmental and health fields. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01929j] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Photosensitizing materials made of organic dyes embedded in various supports are compared to usual supported TiO2-based photocatalysts.
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Affiliation(s)
- S. Lacombe
- IPREM UMR CNRS 5254
- Université de Pau et des Pays de l'Adour
- 64053 Pau Cedex
- France
| | - T. Pigot
- IPREM UMR CNRS 5254
- Université de Pau et des Pays de l'Adour
- 64053 Pau Cedex
- France
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Song K, Xu H, Xie K, Yang Y. Effects of chemical structures of polycarboxylic acids on molecular and performance manipulation of hair keratin. RSC Adv 2016. [DOI: 10.1039/c6ra08797c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
A non-toxic hair crosslinking formula containing polycarboxylic acids and featuring a high treatment performance and mechanical retention is developed.
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Affiliation(s)
- Kaili Song
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Helan Xu
- Department of Textiles
- Merchandising and Fashion Design
- University of Nebraska-Lincoln
- Lincoln
- USA
| | - Kongliang Xie
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Yiqi Yang
- Department of Textiles
- Merchandising and Fashion Design
- University of Nebraska-Lincoln
- Lincoln
- USA
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