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Christ HA, Daniel NP, Solarczek J, Fresenborg LS, Schallmey A, Menzel H. Application of electrospun chitosan-based nanofibers as immobilization matrix for biomolecules. Appl Microbiol Biotechnol 2023; 107:7071-7087. [PMID: 37755509 PMCID: PMC10638201 DOI: 10.1007/s00253-023-12777-w] [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: 05/31/2023] [Revised: 08/02/2023] [Accepted: 09/05/2023] [Indexed: 09/28/2023]
Abstract
Nanofiber meshes from electrospun chitosan, highly modified with biotin and arylazides, are well-suited for application as enzyme immobilization matrices. To test this, catalytically active biomolecules were immobilized onto photocrosslinked nanofibrous nonwovens consisting mainly of biotinylated fungal chitosan and a small amount (10 w%) of poly ethylene oxide. In this study, we show that over 10 μg eugenol oxidase per milligram dry polymer matrix can be loaded on UV-crosslinked chitosan nanofibers. We further demonstrate that bound enzyme activity can be fully retained for over 7 days of storage at ambient conditions in aqueous buffer. Samples loaded at maximum enzyme carrying capacity were tested in a custom-made plug-flow reactor system with online UV-VIS spectroscopy for activity determination. High wettability and durability of the hydrophilic chitosan support matrix enabled continuous oxidation of model substrate vanillyl alcohol into vanillin with constant turnover at flow rates of up to 0.24 L/h for over 6 h. This proves the above hypothesis and enables further application of the fibers as stacked microfluidic membranes, biosensors, or structural starting points for affinity crosslinked enzyme gels. KEY POINTS: • Biotinylated chitosan-based nanofibers retain enzymes via mild affinity interactions • Immobilized eugenol oxidase shows high activity and resists continuous washing • Nanofiber matrix material tolerated high flow rates in a continuous-flow setup.
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Affiliation(s)
- Henrik-Alexander Christ
- Institute for Technical Chemistry, Braunschweig University of Technology, Hagenring 30, 38106, Braunschweig, Germany
| | - Nils Peter Daniel
- Institute for Biochemistry, Braunschweig University of Technology, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Jennifer Solarczek
- Institute for Biochemistry, Braunschweig University of Technology, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Leonard Sebastian Fresenborg
- Department of Molecular Cell Biology of Plants, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany
| | - Anett Schallmey
- Institute for Biochemistry, Braunschweig University of Technology, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Henning Menzel
- Institute for Technical Chemistry, Braunschweig University of Technology, Hagenring 30, 38106, Braunschweig, Germany.
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Thermal Stability and Dynamic Mechanical Properties of Poly( ε-caprolactone)/Chitosan Composite Membranes. MATERIALS 2021; 14:ma14195538. [PMID: 34639932 PMCID: PMC8509319 DOI: 10.3390/ma14195538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 11/17/2022]
Abstract
Poly (ε-caprolactone) (PCL) and chitosan (CS) are widely used as biodegradable and biocompatible polymers with desirable properties for tissue engineering applications. Composite membranes (CS-PCL) with various blend ratios (CS:PCL, w/w) of 0:100, 5:95, 10:90, 15:85, 20:80, and 100:0 were successfully prepared by lyophilization. The thermal stabilities of the CS-PCL membranes were systematically characterized by thermogravimetric analysis (TG), dynamic thermogravimetry (DTG), and differential scanning calorimetry (DSC). It was shown that the blend ratio of PCL and CS had a significant effect on the thermal stability, hydrophilicity, and dynamic mechanical viscoelasticity of the CS-PCL membranes. All the samples in the experimental range exhibited high elasticity at low temperature and high viscosity at high temperatures by dynamic mechanical thermal analysis (DMTA). The performances of the CS-PCL membranes were at optimum levels when the blend ratio (w/w) was 10:90. The glass transition temperature of the CS-PCL membranes increased from 64.8 °C to 76.6 °C compared to that of the pure PCL, and the initial thermal decomposition temperature reached 86.7 °C. The crystallinity and porosity went up to 29.97% and 85.61%, respectively, while the tensile strength and elongation at the breakage were 20.036 MPa and 198.72%, respectively. Therefore, the 10:90 (w/w) blend ratio of CS/PCL is recommended to prepare CS-PCL membranes for tissue engineering applications.
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Suarato G, Bertorelli R, Athanassiou A. Borrowing From Nature: Biopolymers and Biocomposites as Smart Wound Care Materials. Front Bioeng Biotechnol 2018; 6:137. [PMID: 30333972 PMCID: PMC6176001 DOI: 10.3389/fbioe.2018.00137] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 09/13/2018] [Indexed: 12/23/2022] Open
Abstract
Wound repair is a complex and tightly regulated physiological process, involving the activation of various cell types throughout each subsequent step (homeostasis, inflammation, proliferation, and tissue remodeling). Any impairment within the correct sequence of the healing events could lead to chronic wounds, with potential effects on the patience quality of life, and consequent fallouts on the wound care management. Nature itself can be of inspiration for the development of fully biodegradable materials, presenting enhanced bioactive potentialities, and sustainability. Naturally-derived biopolymers are nowadays considered smart materials. They provide a versatile and tunable platform to design the appropriate extracellular matrix able to support tissue regeneration, while contrasting the onset of adverse events. In the past decades, fabrication of bioactive materials based on natural polymers, either of protein derivation or polysaccharide-based, has been extensively exploited to tackle wound-healing related problematics. However, in today's World the exclusive use of such materials is becoming an urgent challenge, to meet the demand of environmentally sustainable technologies to support our future needs, including applications in the fields of healthcare and wound management. In the following, we will briefly introduce the main physico-chemical and biological properties of some protein-based biopolymers and some naturally-derived polysaccharides. Moreover, we will present some of the recent technological processing and green fabrication approaches of novel composite materials based on these biopolymers, with particular attention on their applications in the skin tissue repair field. Lastly, we will highlight promising future perspectives for the development of a new generation of environmentally-friendly, naturally-derived, smart wound dressings.
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Affiliation(s)
- Giulia Suarato
- Smart Materials, Istituto Italiano di Tecnologia, Genoa, Italy
- In vivo Pharmacology Facility, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Rosalia Bertorelli
- In vivo Pharmacology Facility, Istituto Italiano di Tecnologia, Genoa, Italy
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Electrospun and Electrosprayed Scaffolds for Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1078:79-100. [PMID: 30357619 DOI: 10.1007/978-981-13-0950-2_5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Electrospinning and electrospraying technologies provide an accessible and universal synthesis method for the continuous preparation of nanostructured materials. This chapter introduces recent uses of electrospun and electrosprayed scaffolds for tissue regeneration applications. More recent in vitro and in vivo of electrospun fibers are also discussed in relation to soft and hard tissue engineering applications. The focus is made on the bone, vascular, skin, neural and soft tissue regeneration. An introduction is presented regarding the production of biomaterials made by synthetic and natural polymers and inorganic and metallic materials for use in the production of scaffolds for regenerative medicine. For this proposal, the following techniques are discussed: electrospraying, co-axial and emulsion electrospinning and bio-electrospraying. Tissue engineering is an exciting and rapidly developing field for the understanding of how to regenerate the human body.
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Cerchiara T, Abruzzo A, Ñahui Palomino RA, Vitali B, De Rose R, Chidichimo G, Ceseracciu L, Athanassiou A, Saladini B, Dalena F, Bigucci F, Luppi B. Spanish Broom (Spartium junceum L.) fibers impregnated with vancomycin-loaded chitosan nanoparticles as new antibacterial wound dressing: Preparation, characterization and antibacterial activity. Eur J Pharm Sci 2016; 99:105-112. [PMID: 27931851 DOI: 10.1016/j.ejps.2016.11.028] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/14/2016] [Accepted: 11/29/2016] [Indexed: 01/02/2023]
Abstract
In this work, we propose as new wound dressing, the Spanish Broom fibers impregnated with vancomycin (VM) loaded chitosan nanoparticles. Spanish Broom fibers were extracted by patented method DiCoDe and the morphological, physical and mechanical properties were investigated. Chitosan nanoparticles were prepared by ionic gelation using different weight ratios between chitosan (CH) and tripolyphosphate (TPP). Nanoparticles were characterized in terms of size, zeta potential, yield, encapsulation efficiency, stability and drug release. Finally, the antibacterial activity against Staphylococcus aureus as well as in vitro cytotoxicity on HaCaT cells were evaluated. The best formulation CH/TPP 4:1 was selected based on the encapsulation efficiency and yield. Spanish Broom fibers impregnated with loaded nanoparticles showed an increased antibacterial activity against S. aureus compared to the same fibers containing VM without nanoparticles. Moreover, these fibers were not toxic to HaCaT keratinocytes cells. In conclusion, Spanish Broom fibers impregnated with VM loaded CH/TPP nanoparticles would appear to be a promising candidate for wound dressing application.
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Affiliation(s)
- Teresa Cerchiara
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Angela Abruzzo
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | | | - Beatrice Vitali
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | - Renata De Rose
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Giuseppe Chidichimo
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Luca Ceseracciu
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, 16163 Genova, Italy
| | | | - Bruno Saladini
- PolyCrystalLine SpA, Via F.S. Fabri 127/1, 40059, Medicina, Bologna, Italy
| | - Francesco Dalena
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Federica Bigucci
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | - Barbara Luppi
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
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Guzman-Puyol S, Heredia-Guerrero JA, Ceseracciu L, Hajiali H, Canale C, Scarpellini A, Cingolani R, Bayer IS, Athanassiou A, Mele E. Low-Cost and Effective Fabrication of Biocompatible Nanofibers from Silk and Cellulose-Rich Materials. ACS Biomater Sci Eng 2016; 2:526-534. [DOI: 10.1021/acsbiomaterials.5b00500] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | | | | | - Hadi Hajiali
- DIBRIS, University of Genoa, Via Opera Pia, 13, Genova 16145, Italy
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Mele E. Electrospinning of natural polymers for advanced wound care: towards responsive and adaptive dressings. J Mater Chem B 2016; 4:4801-4812. [DOI: 10.1039/c6tb00804f] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanofibrous dressings produced by electrospinning proteins and polysaccharides are highly promising candidates in promoting wound healing and skin regeneration.
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Affiliation(s)
- E. Mele
- Department of Materials
- Loughborough University
- Loughborough
- UK
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Controlled antiseptic/eosin release from chitosan-based hydrogel modified fibrous substrates. Carbohydr Polym 2015; 131:306-14. [DOI: 10.1016/j.carbpol.2015.05.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 05/12/2015] [Accepted: 05/13/2015] [Indexed: 12/22/2022]
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