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Nicu R, Lisa G, Darie-Nita RN, Avadanei MI, Bargan A, Rusu D, Ciolacu DE. Tailoring the Structure and Physico-Chemical Features of Cellulose-Based Hydrogels Using Multi-Epoxy Crosslinking Agents. Gels 2024; 10:523. [PMID: 39195052 DOI: 10.3390/gels10080523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/02/2024] [Accepted: 08/07/2024] [Indexed: 08/29/2024] Open
Abstract
Hydrogel features can be designed and optimized using different crosslinking agents to meet specific requirements. In this regard, the present work investigates the physico-chemical features of cellulose-based hydrogels, designed by using different epoxy crosslinkers from the same glycidyl family, namely epichlorohydrin (ECH), 1,4-butanediol diglycidyl ether (BDDE), and trimethylolpropane triglycidyl ether (TMPTGE). The effect of the crosslinker's structure (from simple to branched) and functionality (mono-, bi- and tri-epoxy groups) on the hydrogels' features was studied. The performances of the hydrogels were investigated through the gel fraction, as well as by ATR-FTIR, DVS, SEM, DSC, and TG analyses. Also, the swelling and rheological behaviors of the hydrogels were examined. The advantages and limitations of each approach were discussed and a strong correlation between the crosslinker structure and the hydrogel properties was established. The formation of new ether bonds was evidenced by ATR-FTIR spectroscopy. It was emphasized that the pore size is directly influenced by the crosslinker type, namely, it decreases with the increasing number of epoxy groups from the crosslinker molecule, i.e., from 46 ± 11.1 µm (hydrogel CE, with ECH) to 12.3 ± 2.5 µm (hydrogel CB, with BDDE) and 6.7 ± 1.5 µm (hydrogel CT, with TMPTGE). The rheological behavior is consistent with the swelling data and hydrogel morphology, such as CE with the highest Qmax and the largest pore size being relatively more elastic than CB and CT. Instead, the denser matrices obtained by using crosslinkers with more complex structures have better thermal stability. The experimental results highlight the possibility of using a specific crosslinking agent, with a defined structure and functionality, in order to establish the main characteristics of hydrogels and, implicitly, to design them for a certain field of application.
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Affiliation(s)
- Raluca Nicu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Gabriela Lisa
- Department of Chemical Engineering, Faculty of Chemical Engineering and Environmental Protection "Cristofor Simionescu", "Gheorghe Asachi" Technical University, 700050 Iasi, Romania
| | - Raluca Nicoleta Darie-Nita
- Department of Physical Chemistry of Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Mihaela Iuliana Avadanei
- Department of Physical Chemistry of Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Alexandra Bargan
- Department of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Daniela Rusu
- Department of Physics of Polymers and Polymeric Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Diana Elena Ciolacu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
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2
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Cecone C, Hoti G, Caldera F, Ginepro M, Matencio A, Trotta F. Evaluation of the Swelling Properties and Sorption Capacity of Maltodextrin-Based Cross-Linked Polymers. Gels 2024; 10:232. [PMID: 38667651 PMCID: PMC11049296 DOI: 10.3390/gels10040232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
The development of polymers obtained from renewable sources such as polysaccharides has gained scientific and industrial attention. Cross-linked bio-derived cationic polymers were synthesized via a sustainable approach exploiting a commercial maltodextrin product, namely, Glucidex 2®, as the building block, while diglycidyl ethers and triglycidyl ethers were used as the cross-linking agents. The polymer products were characterized via FTIR-ATR, TGA, DSC, XRD, SEM, elemental analysis, and zeta-potential measurements, to investigate their composition, structure, and properties. Polydispersed amorphous granules displaying thermal stabilities higher than 250 °C, nitrogen contents ranging from 0.8 wt % and 1.1 wt %, and zeta potential values between 10 mV and 15 mV were observed. Subsequently, water absorption capacity measurements ranging from 800% to 1500%, cross-linking density determination, and rheological evaluations demonstrated the promising gel-forming properties of the studied systems. Finally, nitrate, sulfate, and phosphate removal tests were performed to assess the possibility of employing the studied polymer products as suitable sorbents for water remediation. The results obtained from the ion chromatography technique showed high sorption rates, with 80% of nitrates, over 90% of sulfates, and total phosphates removal.
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Affiliation(s)
- Claudio Cecone
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Gjylije Hoti
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
- Department of Drug Science and Technology, Università degli Studi di Torino, Via P. Giuria 9, 10125 Turin, Italy
| | - Fabrizio Caldera
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Marco Ginepro
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Adrián Matencio
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
| | - Francesco Trotta
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy; (G.H.); (F.C.); (M.G.); (A.M.); (F.T.)
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3
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Tan C, Xu QD, Chen N, He Q, Zeng WC. Cross-Linking Modifications of Different Phenolic Compounds on Myofibrillar Protein of Common Carp. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02958-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Jayachandran B, Parvin TN, Alam MM, Chanda K, MM B. Insights on Chemical Crosslinking Strategies for Proteins. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238124. [PMID: 36500216 PMCID: PMC9738610 DOI: 10.3390/molecules27238124] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/23/2022]
Abstract
Crosslinking of proteins has gained immense significance in the fabrication of biomaterials for various health care applications. Various novel chemical-based strategies are being continuously developed for intra-/inter-molecular crosslinking of proteins to create a network/matrix with desired mechanical/functional properties without imparting toxicity to the host system. Many materials that are used in biomedical and food packaging industries are prepared by chemical means of crosslinking the proteins, besides the physical or enzymatic means of crosslinking. Such chemical methods utilize the chemical compounds or crosslinkers available from natural sources or synthetically generated with the ability to form covalent/non-covalent bonds with proteins. Such linkages are possible with chemicals like carbodiimides/epoxides, while photo-induced novel chemical crosslinkers are also available. In this review, we have discussed different protein crosslinking strategies under chemical methods, along with the corresponding crosslinking reactions/conditions, material properties and significant applications.
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Affiliation(s)
- Brindha Jayachandran
- Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India
| | - Thansila N Parvin
- Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India
| | - M Mujahid Alam
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
- Correspondence: (K.C.); (B.M.)
| | - Balamurali MM
- Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, India
- Correspondence: (K.C.); (B.M.)
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Chen L, Wang S, Wang S, Chen C, Qi L, Yu L, Lu Z, Huang J, Chen J, Wang Z, Shi XW, Song Z, Liu H, Chen C. Scalable Production of Biodegradable, Recyclable, Sustainable Cellulose-Mineral Foams via Coordination Interaction Assisted Ambient Drying. ACS NANO 2022; 16:16414-16425. [PMID: 36240428 DOI: 10.1021/acsnano.2c05635] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Heavy reliance on petrochemical-based plastic foams in both industry and society has led to severe plastic pollution (the so-called "white pollution"). In this work, we develop a biodegradable, recyclable, and sustainable cellulose/bentonite (Cel/BT) foam material directly from resource-abundant natural materials (i.e., lignocellulosic biomass and minerals) via ambient drying. The strong resistance to the capillary force-driven structural collapse of the preformed three-dimensional (3D) network during the ambient drying process can be ascribed to the purpose-designed cellulose-bentonite coordination interaction, which provides a practical way for the locally scalable production of foam materials with designed shapes without complex processing and intensive energy consumption. Benefiting from the strong cellulose-bentonite coordination interaction, the Cel/BT foam material demonstrates high mechanical strength and outstanding thermal stability, outperforming commercial plastic polystyrene foam. Furthermore, the Cel/BT foam presents environmental impacts much lower than those of petrochemical-based plastic foams as it can be 100% recycled in a closed-loop recycling process and easily biodegraded in the environment (natural cellulose goes back to the carbon cycle, and bentonite minerals return to the geological cycle). This study demonstrates an energy-efficient ambient drying approach for the local and scalable production of an all-natural cellulose/bentonite foam for sustainable packaging, buildings, and beyond, presenting great potential in response to "white pollution" and resource shortage.
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Affiliation(s)
- Lu Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Siheng Wang
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
- Key Laboratory of Biomass Energy and Material, Jiangsu Province, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Shanshan Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chang Chen
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Huazhong Agricultural University, Wuhan 430070, China
| | - Luhe Qi
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Le Yu
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Ziyang Lu
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Jing Huang
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Junqing Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Zhen Wang
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiao-Wen Shi
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Zhanqian Song
- Key Laboratory of Biomass Energy and Material, Jiangsu Province, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - He Liu
- Key Laboratory of Biomass Energy and Material, Jiangsu Province, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Chaoji Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
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Multifunctional Gelatin/Chitosan Electrospun Wound Dressing Dopped with Undaria pinnatifida Phlorotannin-Enriched Extract for Skin Regeneration. Pharmaceutics 2021; 13:pharmaceutics13122152. [PMID: 34959432 PMCID: PMC8704818 DOI: 10.3390/pharmaceutics13122152] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/04/2021] [Accepted: 12/08/2021] [Indexed: 01/14/2023] Open
Abstract
The similarities of electrospun fibers with the skin extracellular matrix (ECM) make them promising structures for advanced wound dressings. Moreover, infection and resistance in wounds are a major health concern that may be reduced with antibacterial wound dressings. In this work, a multifunctional wound dressing was developed based on gelatin/chitosan hybrid fibers dopped with phlorotannin-enrich extract from the seaweed Undaria pinnatifida. The intrinsic electrospun structure properties combined with the antimicrobial and anti-inflammatory properties of phlorotannin-enrich extract will enhance the wound healing process. Electrospun meshes were produced by incorporating 1 or 2 wt% of extract, and the structure without extract was used as a control. Physico-chemical, mechanical, and biological properties were evaluated for all conditions. Results demonstrated that all developed samples presented a homogenous fiber deposition with the average diameters closer to the native ECM fibrils, and high porosities (~90%) that will be crucial to control the wound moist environment. According to the tensile test assays, the incorporation of phlorotannin-enriched extract enhances the elastic performance of the samples. Additionally, the extract incorporation made the structure stable over time since its in vitro degradation rates decreased under enzymatic medium. Extract release profile demonstrated a longstanding delivery (up to 160 days), reaching a maximum value of ~98% over time. Moreover, the preliminary antimicrobial results confirm the mesh's antimicrobial activity against Pseudomonas aeruginosa and Staphylococcus aureus. In terms of biological characterization, no condition presented cytotoxicity effects on hDNF cells, allowing their adhesion and proliferation over 14 days, except the condition of 2 wt% after 7 days. Overall, the electrospun structure comprising phlorotannins-enriched extract is a promising bioactive structure with potential to be used as a drug delivery system for skin regeneration by reducing the bacterial infection in the wound bed.
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7
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Nuutinen EM, Virtanen T, Lantto R, Vähä-Nissi M, Jääskeläinen AS. Ductile keratin films from deep eutectic solvent-fractionated feathers. RSC Adv 2021; 11:27512-27522. [PMID: 35480675 PMCID: PMC9037859 DOI: 10.1039/d1ra05123g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/03/2021] [Indexed: 11/21/2022] Open
Abstract
Feathers, an industrial by-product, are a valuable source of keratin that could be used, for example, in the preparation of films for biomedical and packaging applications. However, the utilisation of feather keratin requires scalable processes to convert feathers into a feasible keratin stream. This paper shows how deep eutectic solvent (DES) fractionated feathers could be converted into strong films. In the DES fractionation process, two keratin fractions with different molecular weights were obtained. The films made of the high molecular weight keratin fraction had better mechanical properties and stability against moisture than the films made of the low molecular weight keratin fraction. The strength properties were further improved by cross-linking the keratin with diglycidyl ether enabling the formation of a uniform keratin network, whereas glutaraldehyde did not show a clear cross-linking effect. These keratin films could be used, for example, in food packaging or medical applications such as wound care.
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Affiliation(s)
- Emmi-Maria Nuutinen
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Tommi Virtanen
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Raija Lantto
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Mika Vähä-Nissi
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Anna-Stiina Jääskeläinen
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
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8
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Hashemi SMB, Khodaei D. Basil seed gum edible films incorporated with
Artemisia sieberi
and
Achillea santolina
essential oils: Physical, antibacterial, and antioxidant properties. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15645] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Diako Khodaei
- Department of Food Quality and Sensory Science Teagasc Food Research Centre Ashtown Ireland
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9
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Czerner M, Prudente M, Martucci JF, Rueda F, Fasce LA. Mechanical behavior of cold‐water fish gelatin gels crosslinked with 1,4‐butanediol diglycidyl ether. J Appl Polym Sci 2020. [DOI: 10.1002/app.48985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marina Czerner
- Grupo de Investigación Preservación y Calidad de AlimentosInstituto de Ciencia y Tecnología de Alimentos y Ambiente (INCITAA), Facultad de Ingeniería, UNMDP Mar del Plata Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Mar del Plata Argentina
- Departamento de Ingeniería Química y en AlimentosFacultad de Ingeniería, UNMDP Mar del Plata Argentina
| | - Mariano Prudente
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA). CONICET‐UNMDP Mar del Plata Argentina
| | - Josefa Fabiana Martucci
- Departamento de Ingeniería Química y en AlimentosFacultad de Ingeniería, UNMDP Mar del Plata Argentina
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA). CONICET‐UNMDP Mar del Plata Argentina
| | - Federico Rueda
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA). CONICET‐UNMDP Mar del Plata Argentina
| | - Laura Alejandra Fasce
- Departamento de Ingeniería Química y en AlimentosFacultad de Ingeniería, UNMDP Mar del Plata Argentina
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA). CONICET‐UNMDP Mar del Plata Argentina
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10
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Hashemi SMB, Jafarpour D. The efficacy of edible film from Konjac glucomannan and saffron petal extract to improve shelf life of fresh-cut cucumber. Food Sci Nutr 2020; 8:3128-3137. [PMID: 32724577 PMCID: PMC7382154 DOI: 10.1002/fsn3.1544] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/01/2020] [Accepted: 03/09/2020] [Indexed: 11/07/2022] Open
Abstract
The efficacy of saffron petal extract (SPE; 1%-4%) incorporated into Konjac glucomannan (KGM) edible films on the quality and shelf life of fresh-cut cucumbers was evaluated. Changes in chemical, physical, and microbial properties, antioxidant activity, and total soluble phenolic contents of sliced cucumbers during storage at 4°C for 5 days were investigated. Results showed that the addition of SPE markedly reduced the water vapor permeability features of produced films, whereas the moisture content and transparency of them increased (p < .05). All the formulated films containing 1%-4% of SPE exhibited significant antimicrobial properties against the examined pathogens (Escherichia coli, Shigella sonnei, Salmonella Typhi, Staphylococcus aureus, and Bacillus cereus) both in vitro and in vivo conditions. KGM films incorporated SPE were successful in reducing mesophilic bacteria and fungi populations so that the microbial load significantly decreased as the concentrations of SPE increased and KGM + 4% of SPE was considered as the most effective treatment in decreasing the microbial content of sliced cucumbers. Total soluble solids of the treated cucumbers were significantly increased at the end of the storage in refrigerator, compared to the control sample. Moreover, antioxidant activity (DPPH assay) and total soluble phenols in treated fruit increased with storage time, while these parameters decreased with increasing concentrations of SPE incorporated into KGM film. So according to the findings, the introduced film with KGM and SPE could be considered as an edible film and be applied to preserve the fruit and vegetables quality and extend the shelf life of sliced cucumbers.
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Affiliation(s)
| | - Dornoush Jafarpour
- Department of Food Science and TechnologyCollege of AgricultureIslamic Azad University of Fasa BranchFarsIran
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11
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Naduthottathil MR, Avolio E, Carrabba M, Davis S, Caputo M, Madeddu P, Su B. The Effect of Matrix Stiffness of Biomimetic Gelatin Nanofibrous Scaffolds on Human Cardiac Pericyte Behavior. ACS APPLIED BIO MATERIALS 2019; 2:4385-4396. [PMID: 35021398 DOI: 10.1021/acsabm.9b00608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Congenital heart disease (CHD) is the most common and deadly congenital anomaly, accounting for up to 7.5% of all infant deaths. Survival in children born with CHD has improved dramatically over the past several decades (this positive trend being counterbalanced by the fact that more patients develop heart failure). Seminal data indicate an alteration of the extracellular matrix occurs with time in these hearts due to diffuse and abundant interstitial fibrosis. This results in an escalation in the stiffness of the local myocardial microenvironment. However, the influence of matrix stiffness in regulating the function of resident human stromal cells has not been reported. The objective of this study was to determine the impact of scaffold stiffness on the antigenic and functional profile of cardiac pericytes (CPs) isolated from patients with CHD. To this end, we have first manufactured gelatin nanofibrous scaffolds with varying degrees of stiffness using an in situ cross-linking electrospinning technique in a pure water solvent system. We assessed Young's modulus and performed a comprehensive physicochemical characterization of the scaffolds employing scanning electron microscopy and Fourier transform infrared spectroscopy. We next evaluated the changes induced by a different scaffold stiffness on CP morphology, antigenic profile, viability, proliferation, angiocrine activity, and induced differentiation. Results indicate that soft matrixes with a fiber diameter of ∼400 nm increase CP proliferation, secretion of angiopoietin 2, and F-actin stress fiber formation, without affecting the antigenic profile, viability, or differentiation. These data indicate for the first time that human CPs can be functionally influenced by slight changes in matrix stiffness. The study elucidates the importance of mechanical/morphological cues in modulating the behavior of stromal cells isolated from patients with CHD.
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Affiliation(s)
- Mincy Raj Naduthottathil
- Bristol Centre for Functional Nanomaterials (BCFN), University of Bristol, Bristol BS8 1TL, United Kingdom
| | - Elisa Avolio
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Michele Carrabba
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Sean Davis
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Massimo Caputo
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Paolo Madeddu
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Bo Su
- Bristol Dental School, Lower Maudlin Street, Bristol BS1 2LY, United Kingdom
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12
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Dias JR, Baptista-Silva S, Sousa A, Oliveira AL, Bártolo PJ, Granja PL. Biomechanical performance of hybrid electrospun structures for skin regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:816-827. [PMID: 30274117 DOI: 10.1016/j.msec.2018.08.050] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 08/03/2018] [Accepted: 08/22/2018] [Indexed: 12/19/2022]
Affiliation(s)
- J R Dias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Centre for Rapid and Sustainable Product Development (CDRsp), Polytechnic Institute of Leiria, Leiria, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
| | - S Baptista-Silva
- CBQF - Center for Biotechnology and Fine Chemistry, School of Biotechnology, Portuguese Catholic University, Porto, Portugal
| | - A Sousa
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - A L Oliveira
- CBQF - Center for Biotechnology and Fine Chemistry, School of Biotechnology, Portuguese Catholic University, Porto, Portugal
| | - P J Bártolo
- School of Mechanical, Aerospace and Civil Engineering & Manchester Institute of Biotechnology, University of Manchester, UK
| | - P L Granja
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal; Faculdade de Engenharia da Universidade do Porto (FEUP), Porto, Portugal
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