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de Farias BS, Rizzi FZ, Ribeiro ES, Diaz PS, Sant'Anna Cadaval Junior TR, Dotto GL, Khan MR, Manoharadas S, de Almeida Pinto LA, Dos Reis GS. Influence of gelatin type on physicochemical properties of electrospun nanofibers. Sci Rep 2023; 13:15195. [PMID: 37710008 PMCID: PMC10502060 DOI: 10.1038/s41598-023-42472-9] [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: 07/30/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023] Open
Abstract
This study explores the fabrication of nanofibers using different types of gelatins, including bovine, porcine, and fish gelatins. The gelatins exhibited distinct molecular weights and apparent viscosity values, leading to different entanglement behavior and nanofiber production. The electrospinning technique produced nanofibers with diameters from 47 to 274 nm. The electrospinning process induced conformational changes, reducing the overall crystallinity of the gelatin samples. However, porcine gelatin nanofibers exhibited enhanced molecular ordering. These findings highlight the potential of different gelatin types to produce nanofibers with distinct physicochemical properties. Overall, this study sheds light on the relationship between gelatin properties, electrospinning process conditions, and the resulting nanofiber characteristics, providing insights for tailored applications in various fields.
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Affiliation(s)
- Bruna Silva de Farias
- School of Chemistry and Food, Federal University of Rio Grande (FURG), km 8 Itália Avenue, Rio Grande, RS, 96203-900, Brazil
| | - Francisca Zuchoski Rizzi
- School of Chemistry and Food, Federal University of Rio Grande (FURG), km 8 Itália Avenue, Rio Grande, RS, 96203-900, Brazil
| | - Eduardo Silveira Ribeiro
- Biotechnology Unit, Technology Development Center, Federal University of Pelotas (UFPEL), Eliseu Maciel, Capão do Leão, 96010-610, Brazil
| | - Patrícia Silva Diaz
- Biotechnology Unit, Technology Development Center, Federal University of Pelotas (UFPEL), Eliseu Maciel, Capão do Leão, 96010-610, Brazil
| | | | - Guilherme Luiz Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil
| | - Mohammad Rizwan Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Salim Manoharadas
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Luiz Antonio de Almeida Pinto
- School of Chemistry and Food, Federal University of Rio Grande (FURG), km 8 Itália Avenue, Rio Grande, RS, 96203-900, Brazil
| | - Glaydson Simões Dos Reis
- Department of Forest Biomaterials and Technology, Biomass Technology Centre, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden.
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Kumar L, Deshmukh RK, Gaikwad KK. Antimicrobial packaging film from cactus (Cylindropuntia fulgida) mucilage and gelatine. Int J Biol Macromol 2022; 215:596-605. [PMID: 35777505 DOI: 10.1016/j.ijbiomac.2022.06.162] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/14/2022] [Accepted: 06/25/2022] [Indexed: 11/05/2022]
Abstract
Gelatine is an excellent substitute for biodegradable packaging materials; nevertheless, it is necessary to mix it with other polymers due to its poor mechanical and high hydrophilicity. In the present study, we used Cylindropuntia fulgida mucilage (CF) as main constituent and gelatine (GTN). The Euphorbia caducifolia extract (ECE) was incorporated in concentrations of 0, 1, 5, 10, 20 %, and its influence on the film's morphological, thermal, mechanical, and water vapor barrier properties was assessed. The surface of fabricated CF/GTN/ECE biocomposite films was more homogeneous and smoother with the high concentration of in ECE. The elongation at break improved from 2 to 60.59 %, and WVP enhanced from 3.34 to 2.59 10-4 g mm/mm2 day kPa and highest antimicrobial activity of 3.62 ± 0.71 Log CFU g-1 when CF/GTN was incorporated with 20 % ECE. Incorporating CF and ECE 10 to 20 % makes these films a good substitute for the packaging of food products.
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Affiliation(s)
- Lokesh Kumar
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Ram Kumar Deshmukh
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Kirtiraj K Gaikwad
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.
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Esteves C, Palma SICJ, Costa HMA, Alves C, Santos GMC, Ramou E, Carvalho AL, Alves V, Roque ACA. Tackling Humidity with Designer Ionic Liquid-Based Gas Sensing Soft Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2107205. [PMID: 34873762 PMCID: PMC7613046 DOI: 10.1002/adma.202107205] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/12/2021] [Indexed: 05/13/2023]
Abstract
Relative humidity is simultaneously a sensing target and a contaminant in gas and volatile organic compound (VOC) sensing systems, where strategies to control humidity interference are required. An unmet challenge is the creation of gas-sensitive materials where the response to humidity is controlled by the material itself. Here, humidity effects are controlled through the design of gelatin formulations in ionic liquids without and with liquid crystals as electrical and optical sensors, respectively. In this design, the anions [DCA]- and [Cl]- of room temperature ionic liquids from the 1-butyl-3-methylimidazolium family tailor the response to humidity and, subsequently, sensing of VOCs in dry and humid conditions. Due to the combined effect of the materials formulations and sensing mechanisms, changing the anion from [DCA]- to the much more hygroscopic [Cl]- , leads to stronger electrical responses and much weaker optical responses to humidity. Thus, either humidity sensors or humidity-tolerant VOC sensors that do not require sample preconditioning or signal processing to correct humidity impact are obtained. With the wide spread of 3D- and 4D-printing and intelligent devices, the monitoring and tuning of humidity in sustainable biobased materials offers excellent opportunities in e-nose sensing arrays and wearable devices compatible with operation at room conditions.
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Affiliation(s)
- Carina Esteves
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Susana I C J Palma
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Henrique M A Costa
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Cláudia Alves
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Gonçalo M C Santos
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Efthymia Ramou
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Ana Luísa Carvalho
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Vitor Alves
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, 2829-516, Portugal
| | - Ana C A Roque
- LEAF - Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, 1349-017, Portugal
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Zaupa A, Neffe AT, Pierce BF, Nöchel U, Lendlein A. Influence of tyrosine-derived moieties and drying conditions on the formation of helices in gelatin. Biomacromolecules 2010; 12:75-81. [PMID: 21141880 DOI: 10.1021/bm101029k] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The single and triple helical organization of protein chains strongly influences the mechanical properties of gelatin-based materials. A chemical method for obtaining different degrees of helical organization in gelatin is covalent functionalization, while a physical method for achieving the same goal is the variation of the drying conditions of gelatin solutions. Here we explored how the introduction of desaminotyrosine (DAT) and desaminotyrosyl tyrosine (DATT) linked to lysine residues of gelatin influenced the kinetics and thermodynamic equilibrium of the helicalization process of single and triple helices following different drying conditions. Drying at a temperature above the helix-to-coil transition temperature of gelatin (T > T(c), called v(short)) generally resulted in gelatins with relatively lower triple helical content (X(c,t) = 1-2%) than lower temperature drying (T < T(c), called v(long)) (X(c,t) = 8-10%), where the DAT(T) functional groups generally disrupted helix formation. While different helical contents affected the thermal transition temperatures only slightly, the mechanical properties were strongly affected for swollen hydrogels (E = 4-13 kPa for samples treated by v(long) and E = 120-700 kPa for samples treated by v(short)). This study shows that side group functionalization and different drying conditions are viable options to control the helicalization and macroscopic properties of gelatin-based materials.
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Affiliation(s)
- Alessandro Zaupa
- Center for Biomaterial Development and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Kantstrasse 55, 14513 Teltow, Germany
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Peña C, de la Caba K, Eceiza A, Ruseckaite R, Mondragon I. Enhancing water repellence and mechanical properties of gelatin films by tannin addition. BIORESOURCE TECHNOLOGY 2010; 101:6836-6842. [PMID: 20400296 DOI: 10.1016/j.biortech.2010.03.112] [Citation(s) in RCA: 163] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 03/19/2010] [Accepted: 03/24/2010] [Indexed: 05/29/2023]
Abstract
In order to reduce pollution caused by traditional non-biodegradable plastic films, renewable raw materials from plants and wastes of meat industries have been employed in this work. A hydrolysable chestnut-tree tannin was used for gelatin modification. Films of gelatin and gelatin-tannin were obtained by casting at room conditions. Transition temperatures of both gelatin and gelatin-tannin systems were determined by differential scanning calorimetry (DSC). Glass transition temperatures of modified gelatin occurred at higher temperatures than for neat gelatin. Enthalpy and temperature of helix-coil transition decreased when tannin content increased due to variations in the helical structure of gelatin as a consequence of tannin presence in agreement with X-ray analysis. Mechanical and thermal behaviour varied as a function of the content of tannin, showing optimum values for films modified with 10 wt% tannin. The transparency of films was maintained after modification with tannin. Solubility and swelling tests of the films revealed that the presence of tannin reduced the water affinity of gelatin.
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Affiliation(s)
- Cristina Peña
- Materials+Technologies' Group, Department of Chemical and Environmental Engineering, Polytechnic School, University of the Basque Country, Pza. Europa, 1, 20018 Donostia-San Sebastián, Spain
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