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Hooper R, Cummings C, Beck A, Vazquez-Armendariz J, Rodriguez C, Dean D. Sheet-based extrusion bioprinting: a new multi-material paradigm providing mid-extrusion micropatterning control for microvascular applications. Biofabrication 2024; 16:025032. [PMID: 38447217 PMCID: PMC10938191 DOI: 10.1088/1758-5090/ad30c8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/17/2024] [Accepted: 03/06/2024] [Indexed: 03/08/2024]
Abstract
As bioprinting advances into clinical relevance with patient-specific tissue and organ constructs, it must be capable of multi-material fabrication at high resolutions to accurately mimick the complex tissue structures found in the body. One of the most fundamental structures to regenerative medicine is microvasculature. Its continuous hierarchical branching vessel networks bridge surgically manipulatable arteries (∼1-6 mm) to capillary beds (∼10µm). Microvascular perfusion must be established quickly for autologous, allogeneic, or tissue engineered grafts to survive implantation and heal in place. However, traditional syringe-based bioprinting techniques have struggled to produce perfusable constructs with hierarchical branching at the resolution of the arterioles (∼100-10µm) found in microvascular tissues. This study introduces the novel CEVIC bioprinting device (i.e.ContinuouslyExtrudedVariableInternalChanneling), a multi-material technology that breaks the current extrusion-based bioprinting paradigm of pushing cell-laden hydrogels through a nozzle as filaments, instead, in the version explored here, extruding thin, wide cell-laden hydrogel sheets. The CEVIC device adapts the chaotic printing approach to control the width and number of microchannels within the construct as it is extruded (i.e. on-the-fly). Utilizing novel flow valve designs, this strategy can produce continuous gradients varying geometry and materials across the construct and hierarchical branching channels with average widths ranging from 621.5 ± 42.92%µm to 11.67 ± 14.99%µm, respectively, encompassing the resolution range of microvascular vessels. These constructs can also include fugitive/sacrificial ink that vacates to leave demonstrably perfusable channels. In a proof-of-concept experiment, a co-culture of two microvascular cell types, endothelial cells and pericytes, sustained over 90% viability throughout 1 week in microchannels within CEVIC-produced gelatin methacryloyl-sodium alginate hydrogel constructs. These results justify further exploration of generating CEVIC-bioprinted microvasculature, such as pre-culturing and implantation studies.
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Affiliation(s)
- Ryan Hooper
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, United States of America
| | - Caleb Cummings
- Department of Biology, The Ohio State University, Columbus, OH 43210, United States of America
| | - Anna Beck
- Department of Biochemistry, The Ohio State University, Columbus, OH 43210, United States of America
| | - Javier Vazquez-Armendariz
- Department of Materials Science & Engineering, The Ohio State University, Columbus, OH 43210, United States of America
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Monterrey 64849, NL, Mexico
| | - Ciro Rodriguez
- Department of Materials Science & Engineering, The Ohio State University, Columbus, OH 43210, United States of America
- Laboratorio Nacional de Manufactura Aditiva y Digital (MADiT), Apodaca 66629, NL, Mexico
- Departamento de Ingeniería Mecánica y Materiales Avanzados, Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Monterrey 64849, NL, Mexico
| | - David Dean
- Department of Materials Science & Engineering, The Ohio State University, Columbus, OH 43210, United States of America
- Department of Plastic and Reconstructive Surgery, The Ohio State University, Columbus, OH 43210, United States of America
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El Faroudi L, Saadi L, Barakat A, Mansori M, Abdelouahdi K, Solhy A. Facile and Sustainable Synthesis of ZnO Nanoparticles: Effect of Gelling Agents on ZnO Shapes and Their Photocatalytic Performance. ACS OMEGA 2023; 8:24952-24963. [PMID: 37483179 PMCID: PMC10357430 DOI: 10.1021/acsomega.3c01491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 05/16/2023] [Indexed: 07/25/2023]
Abstract
The present work involves investigating an unexplored soft-chemical method for synthesizing nanostructured ZnO through biopolymer gelation. Our objective was to exploit (i) the difference in the gelation mechanism of four tested biopolymers, namely, alginate, chitosan, carboxymethylcellulose (CMC), and pectin and (ii) numerous experimental parameters that govern this process in order to allow the control of the growth of nanostructured ZnO, with a view to using the prepared oxides as photocatalysts for the oxidation of the Orange G dye. So, the effect of biopolymer's nature on the microstructural, morphological, and textural properties was examined by thermogravimetric analysis (TGA), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, field-emission gun-scanning electron microscopy-high resolution (FEG-SEM) with energy-dispersive spectrometry (SEM-EDS), ultraviolet-visible (UV-vis) spectroscopy, and N2 adsorption/desorption. As-prepared oxides were crystallized in a hexagonal wurtzite structure, with a clear difference in their morphologies. The sample prepared by using chitosan has a specific surface area of around 36.8 m2/g in the form of aggregated and agglomerated nanostructured minirods and thus shows the best photocatalytic performance with 99.3% degradation of the Orange G dye in 180 min.
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Affiliation(s)
- Loubna El Faroudi
- IMED-Lab,
FST-Marrakech, University Cadi Ayyad, Av. A. Khattabi, BP 549, 40000 Marrakech, Morocco
| | - Latifa Saadi
- IMED-Lab,
FST-Marrakech, University Cadi Ayyad, Av. A. Khattabi, BP 549, 40000 Marrakech, Morocco
| | - Abdellatif Barakat
- IATE,
Montpellier University, INRAE, Agro Institut, 34060 Montpellier France
- Mohamed
VI Polytechnic University, Lot 660—Hay Moulay Rachid, 43150 Ben Guerir, Morocco
| | - Mohammed Mansori
- IMED-Lab,
FST-Marrakech, University Cadi Ayyad, Av. A. Khattabi, BP 549, 40000 Marrakech, Morocco
| | - Karima Abdelouahdi
- IMED-Lab,
FST-Marrakech, University Cadi Ayyad, Av. A. Khattabi, BP 549, 40000 Marrakech, Morocco
| | - Abderrahim Solhy
- IATE,
Montpellier University, INRAE, Agro Institut, 34060 Montpellier France
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3
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Abolhassani S, Hossein-Aghdaei M, Geramizadeh B, Azarpira N, Koohpeyma F, Gholami M, Alizadeh A. Primary hepatocyte urea assessment in the sodium-alginate patterned hydrogel by electrochemical procedure containing umbilical cord conditioned media. J Biomater Appl 2023; 37:1470-1485. [PMID: 36318091 DOI: 10.1177/08853282221137093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Limitations in liver transplantation and advances in cell therapy methods motivated us to study primary hepatocytes. The main challenge in using primary hepatocytes for liver regeneration is that they lose their functionalities. We aimed to develop a controlled-shape hydrogel and apply the conditioned-media of mesenchymal stromal cells (CM-MSCs) to improve in vitro hepatocyte functions. In this experimental study, following rat hepatocyte isolation by collagenase perfusion and collection of human umbilical cord CM-MSCs, a simple and precise system called electrodeposition was used to produce the patterned alginate hydrogel. To reduce the cytopathic effects, we used an indirect electrodeposition method. For characterizing this structure, mechanical properties, Fourier-transform infrared spectroscopy (FTIR), water uptake, in-vitro degradation, and hydrogel stability were studied. Urea synthesis as a basic function of hepatocytes was assessed in five different groups. Scanning electron microscope (SEM) was utilized to evaluate the primary hepatocyte morphology and their dispersion in the fabricated structure. We observed a significant increase in urea synthesis in the presence of CM-MSCs in patterned hydrogel alginate compared to 2D culture on day 3 (p<0.05). However, there was no significant difference in simple and patterned hydrogel on day 2. We found that the electrodeposition method is appropriate for the rapid fabricating of hydrogel structures with arbitrary patterns for 3D cell culture.
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Affiliation(s)
- Sareh Abolhassani
- School of Advanced Medical Sciences and Technologies, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Bita Geramizadeh
- Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrine and metabolism Research Center, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahnaz Gholami
- Transplant Research Center, 226722Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aliakbar Alizadeh
- School of Advanced Medical Sciences and Technologies, 48435Shiraz University of Medical Sciences, Shiraz, Iran
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Calcium spraying for fabricating collagen-alginate composite films with excellent wet mechanical properties. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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5
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Tratzi P, Ta DT, Zhang Z, Torre M, Battistelli F, Manzo E, Paolini V, Zhang Q, Chu C, Petracchini F. Sustainable additives for the regulation of NH 3 concentration and emissions during the production of biomethane and biohydrogen: A review. BIORESOURCE TECHNOLOGY 2022; 346:126596. [PMID: 34953990 DOI: 10.1016/j.biortech.2021.126596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
This study reviews the recent advances and innovations in the application of additives to improve biomethane and biohydrogen production. Biochar, nanostructured materials, novel biopolymers, zeolites, and clays are described in terms of chemical composition, properties and impact on anaerobic digestion, dark fermentation, and photofermentation. These additives can have both a simple physical effect of microbial adhesion and growth, and a more complex biochemical impact on the regulation of key parameters for CH4 and H2 production: in this study, these effects in different experimental conditions are reviewed and described. The considered parameters include pH, volatile fatty acids (VFA), C:N ratio, and NH3; additionally, the global impact on the total production yield of biogas and bioH2 is reviewed. A special focus is given to NH3, due to its strong inhibition effect towards methanogens, and its contribution to digestate quality, leaching, and emissions into the atmosphere.
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Affiliation(s)
- Patrizio Tratzi
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria 29300, 00015 Monterotondo, Italy
| | - Doan Thanh Ta
- Institute of Green Products, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung 40724, Taiwan
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Renewable Natural Resources, Louisiana State University, Baton Rouge, LA, USA
| | - Marco Torre
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria 29300, 00015 Monterotondo, Italy
| | - Francesca Battistelli
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria 29300, 00015 Monterotondo, Italy
| | - Eros Manzo
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria 29300, 00015 Monterotondo, Italy
| | - Valerio Paolini
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria 29300, 00015 Monterotondo, Italy.
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Chenyeon Chu
- Institute of Green Products, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung 40724, Taiwan
| | - Francesco Petracchini
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria 29300, 00015 Monterotondo, Italy
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Xu Z, Chen L, Duan X, Li X, Ren H. Microparticles based on alginate/chitosan/casein three‐dimensional system for oral insulin delivery. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zhenyu Xu
- School of Pharmaceutical Science Nanjing Tech University Nanjing China
| | - Long Chen
- School of Pharmaceutical Science Nanjing Tech University Nanjing China
| | - Xiaoya Duan
- School of Pharmaceutical Science Nanjing Tech University Nanjing China
| | - Xueming Li
- School of Pharmaceutical Science Nanjing Tech University Nanjing China
| | - Hao Ren
- School of Pharmaceutical Science Nanjing Tech University Nanjing China
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Zhang B, Liu Y, Wang H, Liu W, Cheong KL, Teng B. Characterization of seaweed polysaccharide-based bilayer films containing essential oils with antibacterial activity. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111961] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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The Feasibility of Using Pulsed-Vacuum in Stimulating Calcium-Alginate Hydrogel Balls. Foods 2021; 10:foods10071521. [PMID: 34359394 PMCID: PMC8304266 DOI: 10.3390/foods10071521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/21/2021] [Accepted: 06/26/2021] [Indexed: 11/17/2022] Open
Abstract
The effect of the pulsed-vacuum stimulation (PVS) on the external gelation process of calcium-alginate (Ca-Alg) hydrogel balls was studied. The process was conducted at four different working pressures (8, 35, 61, and 101 kPa) for three pulsed-vacuum cycles (one cycle consisted of three repetitions of 10 min of depressurization and 10 min of vacuum liberation). The diffusion coefficients (D) of calcium cations (Ca2+) gradually reduced over time and were significantly pronounced (p < 0.05) at the first three hours of the external gelation process. The rate of weight reduction (WR) and rate of volume shrinkage (Sv) varied directly according to the D value of Ca2+. A significant linear relationship between WR and Sv was observed for all working pressures (R2 > 0.91). An application of a pulsed vacuum at 8 kPa led to the highest weight reduction and shrinkage of Ca-Alg hydrogel samples compared to other working pressures, while 61 kPa seemed to be the best condition. Although all textural characteristics (hardness, breaking deformation, Young’s modulus, and rupture strength) did not directly variate by the level of working pressures, they were likely correlated with the levels of WR and Sv. Scanning electron micrographs (SEM) supported that the working pressure affected the characteristics of Ca-Alg hydrogel structure. Samples stimulated at a working pressure of 8 kPa showed higher deformation with heterogenous structure, large cavities, and looser layer when compared with those at 61 kPa. These results indicate the PVS is a promising technology that can be effectively applied in the external gelation process of Ca-Alg gel.
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9
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Yu XD, Li JH, Li H, Huang J, Caccavo D, Lamberti G, Chu LQ. Gelation process of carboxymethyl chitosan-zinc supramolecular hydrogel studied with fluorescence imaging and mathematical modelling. Int J Pharm 2021; 605:120804. [PMID: 34144132 DOI: 10.1016/j.ijpharm.2021.120804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/01/2021] [Accepted: 06/12/2021] [Indexed: 11/19/2022]
Abstract
Herein we report on a detailed study about the gelation kinetics of carboxymethyl chitosan-zinc (CMCh-Zn) supramolecular hydrogel by taking advantage of its intrinsic fluorescence property. A specific gelation device is designed and the gel front can be directly visualized under 365 nm UV light. The results show that when increasing Zn2+ concentration from 0.1 M to 1.0 M, the apparent diffusion coefficient increases gradually from 2.72 × 10-6 cm2/s to 4.50 × 10-6 cm2/s. The gelation kinetics then is described with a "zero order" mathematical model, proving that the gel thickness is related to the square root of the gelation time and the diffusion step is the controlling step of the gelation process. Later a more advanced model, developed in 1D geometry and solved numerically, is used to describe and predict experimental results, proving its reliability and the correct description of all the phenomena involved in the gelation process of CMCh-Zn hydrogel.
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Affiliation(s)
- Xu-Dong Yu
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology, No. 29, 13(th) Avenue, TEDA, Tianjin 300457, China
| | - Jia-Hui Li
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology, No. 29, 13(th) Avenue, TEDA, Tianjin 300457, China
| | - Heng Li
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology, No. 29, 13(th) Avenue, TEDA, Tianjin 300457, China
| | - Ju Huang
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology, No. 29, 13(th) Avenue, TEDA, Tianjin 300457, China
| | - Diego Caccavo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, Fisciano (SA) 84084, Italy; Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano (SA) 84084, Italy; Eng4Life Srl, Academic spin-off, Via Fiorentino, 32, 83100 Avellino, Italy.
| | - Gaetano Lamberti
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, Fisciano (SA) 84084, Italy; Eng4Life Srl, Academic spin-off, Via Fiorentino, 32, 83100 Avellino, Italy
| | - Li-Qiang Chu
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology, No. 29, 13(th) Avenue, TEDA, Tianjin 300457, China.
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Monitoring of the ultrasound assisted depolymerisation kinetics of fucoidans from Sargassum muticum depending on the rheology of the corresponding gels. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Wang H, Li MF, Lin F, Su CR, Zeng QZ, Su DX, He S, Wang Q, Zhang JL, Yuan Y. Fabrication and characterization of bi-crosslinking Pickering emulsions stabilized by gliadin/alginate coacervate particles. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110318] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Alginate/κ-Carrageenan-Based Edible Films Incorporated with Clove Essential Oil: Physico-Chemical Characterization and Antioxidant-Antimicrobial Activity. Polymers (Basel) 2021; 13:polym13030354. [PMID: 33499188 PMCID: PMC7865553 DOI: 10.3390/polym13030354] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 12/25/2022] Open
Abstract
This study aimed to enhance the properties of CaCl2 crosslinked sodium alginate/k-carrageenan (SA/KC) incorporated with clove essential oil (CEO). An evaluation of the modification effects on physicochemical, morphological, antioxidant, and antibacterial properties was performed. The properties were observed at various SA/KC ratios (10/0 to 1.5/1), CEO (1.5% to 3%), and CaCl2 (0% to 2%). The surface morphology was improved by addition of KC and CaCl2. The Fourier transform infrared (FTIR) result showed insignificant alteration of film chemical structure. The X-ray diffraction (XRD) result confirmed the increased crystallinity index of the film by CaCl2 addition. On physicochemical properties, a higher proportion of SA/KC showed the declined tensile strength, meanwhile both elongation at break and water solubility were increased. The incorporated CEO film reduced both tensile strength and water solubility; however, the elongation at break was significantly increased. The presence of Ca2+ ions remarkably increased the tensile strength despite decreased water solubility. Overall, the addition of KC and CaCl2 helped in repairing the mechanical properties and flexibility. CEO incorporation showed the effectiveness of profiling the antioxidant and antimicrobial activity indicated by high 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity up to 90.32% and inhibition zone of E. coli growth up to 113.14 mm2.
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Cao D, Jin J, Wang Q, Song X, Hao X, Iritani E, Katagiri N. Ultrafiltration recovery of alginate: Membrane fouling mitigation by multivalent metal ions and properties of recycled materials. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Flórez-Fernández N, Álvarez-Viñas M, Guerreiro F, Torres MD, Grenha A, Domínguez H. Hydrothermal Processing of Laminaria ochroleuca for the Production of Crude Extracts Used to Formulate Polymeric Nanoparticles. Mar Drugs 2020; 18:E336. [PMID: 32605020 PMCID: PMC7401254 DOI: 10.3390/md18070336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 02/06/2023] Open
Abstract
A green extraction process using only water was proposed for the simultaneous extraction of alginate and bioactive compounds from Laminaria ochroleuca. Operation was carried out during non-isothermal heating up to maximal temperatures over the range of 70 °C to 100 °C. Once separated, the alginate and the crude extract were characterised and the biological activities and cytotoxicity of the extracts was studied, the latter in intestinal epithelial cells. Those alginates obtained at 90 °C exhibited the highest extraction yields and viscoelastic features of the corresponding hydrogels. The obtained results show that the extracts obtained by non-isothermal extraction were suitable to formulate nanoparticles, which showed the smallest size (≈ 250-350 nm) when the higher content of fucoidan extract was present. Given the evidenced properties, the extracts may find an application in the formulation of nanoparticulate carriers for drug delivery.
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Affiliation(s)
- Noelia Flórez-Fernández
- Department of Chemical Engineering, University of Vigo, Campus Ourense, As Lagoas, 32004 Ourense, Spain; (N.F.-F.); (M.Á.-V.); (M.D.T.)
- Centre for Marine Sciences, Universidade do Algarve, Gambelas Campus, 8005-139 Faro, Portugal;
| | - Milena Álvarez-Viñas
- Department of Chemical Engineering, University of Vigo, Campus Ourense, As Lagoas, 32004 Ourense, Spain; (N.F.-F.); (M.Á.-V.); (M.D.T.)
| | - Filipa Guerreiro
- Centre for Marine Sciences, Universidade do Algarve, Gambelas Campus, 8005-139 Faro, Portugal;
| | - María Dolores Torres
- Department of Chemical Engineering, University of Vigo, Campus Ourense, As Lagoas, 32004 Ourense, Spain; (N.F.-F.); (M.Á.-V.); (M.D.T.)
| | - Ana Grenha
- Centre for Marine Sciences, Universidade do Algarve, Gambelas Campus, 8005-139 Faro, Portugal;
- Drug Delivery Laboratory, Faculty of Sciences and Technology, Universidade do Algarve, Gambelas Campus, 8005-139 Faro, Portugal
| | - Herminia Domínguez
- Department of Chemical Engineering, University of Vigo, Campus Ourense, As Lagoas, 32004 Ourense, Spain; (N.F.-F.); (M.Á.-V.); (M.D.T.)
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Jaafar MHM, Hamid KA. Chitosan-Coated Alginate Nanoparticles Enhanced Absorption Profile of Insulin Via Oral Administration. Curr Drug Deliv 2020; 16:672-686. [PMID: 31250754 DOI: 10.2174/1567201816666190620110748] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 05/10/2019] [Accepted: 05/18/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND In this study, four nanoparticle formulations (F1 to F4) comprising varying ratios of alginate, Pluronic F-68 and calcium chloride with a constant amount of insulin and chitosan as a coating material were prepared using polyelectrolyte complexation and ionotropic gelation methods to protect insulin against enzymatic degradation. METHODS This study describes the formulation design, optimisation, characterisation and evaluation of insulin concentration via oral delivery in rats. A reversed-phase high-performance liquid chromatography (HPLC) method was developed and validated to quantify insulin concentration in rat plasma. The proposed method produced a linear response over the concentration range of 0.39 to 50 µg/ml. RESULTS In vitro release study showed that dissolution of insulin in simulated gastric juice of pH 1.2 was prevented by alginate core and chitosan coating but rapidly released in simulated intestinal fluid (pH 6.8). Additionally, Formulation 3 (F3) has a particle size of 340.40 ± 2.39 nm with narrow uniformity exhibiting encapsulation efficiency (EE) of 72.78 ± 1.25 % produced highest absorption profile of insulin with a bioavailability of 40.23 ±1.29% and reduced blood glucose after its oral administration in rats. CONCLUSION In conclusion, insulin oral delivery system containing alginate and chitosan as a coating material has the ability to protect the insulin from enzymatic degradation thus enhance its absorption in the intestine. However, more work should be done for instance to involve human study to materialise this delivery system for human use.
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Affiliation(s)
- Mohd H M Jaafar
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Selangor, 42300 Puncak Alam, Malaysia
| | - Khuriah A Hamid
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Selangor, 42300 Puncak Alam, Malaysia
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Hajikhani A, Scocozza F, Conti M, Marino M, Auricchio F, Wriggers P. Experimental characterization and computational modeling of hydrogel cross-linking for bioprinting applications. Int J Artif Organs 2019; 42:548-557. [DOI: 10.1177/0391398819856024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Alginate-based hydrogels are extensively used to create bioinks for bioprinting, due to their biocompatibility, low toxicity, low costs, and slight gelling. Modeling of bioprinting process can boost experimental design reducing trial-and-error tests. To this aim, the cross-linking kinetics for the chemical gelation of sodium alginate hydrogels via calcium chloride diffusion is analyzed. Experimental measurements on the absorbed volume of calcium chloride in the hydrogel are obtained at different times. Moreover, a reaction-diffusion model is developed, accounting for the dependence of diffusive properties on the gelation degree. The coupled chemical system is solved using finite element discretizations which include the inhomogeneous evolution of hydrogel state in time and space. Experimental results are fitted within the proposed modeling framework, which is thereby calibrated and validated. Moreover, the importance of accounting for cross-linking-dependent diffusive properties is highlighted, showing that, if a constant diffusivity property is employed, the model does not properly capture the experimental evidence. Since the analyzed mechanisms highly affect the evolution of the front of the solidified gel in the final bioprinted structure, the present study is a step towards the development of reliable computational tools for the in silico optimization of protocols and post-printing treatments for bioprinting applications.
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Affiliation(s)
- Aidin Hajikhani
- Institute of Continuum Mechanics, Leibniz Universität Hannover, Hannover, Germany
| | - Franca Scocozza
- Dipartimento di Ingegneria Civile ed Architettura, Università degli Studi di Pavia, Pavia, Italy
| | - Michele Conti
- Dipartimento di Ingegneria Civile ed Architettura, Università degli Studi di Pavia, Pavia, Italy
| | - Michele Marino
- Institute of Continuum Mechanics, Leibniz Universität Hannover, Hannover, Germany
| | - Ferdinando Auricchio
- Dipartimento di Ingegneria Civile ed Architettura, Università degli Studi di Pavia, Pavia, Italy
| | - Peter Wriggers
- Institute of Continuum Mechanics, Leibniz Universität Hannover, Hannover, Germany
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López-Hortas L, Conde E, Falqué E, Domínguez H, Torres MD. Preparation of Hydrogels Composed of Bioactive Compounds from Aqueous Phase of Artichoke Obtained by MHG Technique. FOOD BIOPROCESS TECH 2019. [DOI: 10.1007/s11947-019-02301-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Ghosal K, Das A, Das SK, Mahmood S, Ramadan MAM, Thomas S. Synthesis and characterization of interpenetrating polymeric networks based bio-composite alginate film: A well-designed drug delivery platform. Int J Biol Macromol 2019; 130:645-654. [DOI: 10.1016/j.ijbiomac.2019.02.117] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/08/2019] [Accepted: 02/20/2019] [Indexed: 12/17/2022]
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19
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Recovery of aqueous phase of broccoli obtained by MHG technique for development of hydrogels with antioxidant properties. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.02.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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López-Hortas L, Domínguez H, Torres MD. Valorisation of edible brown seaweeds by the recovery of bioactive compounds from aqueous phase using MHG to develop innovative hydrogels. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.01.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Flórez-Fernández N, Domínguez H, Torres MD. A green approach for alginate extraction from Sargassum muticum brown seaweed using ultrasound-assisted technique. Int J Biol Macromol 2019; 124:451-459. [PMID: 30496857 DOI: 10.1016/j.ijbiomac.2018.11.232] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 11/14/2018] [Accepted: 11/25/2018] [Indexed: 01/19/2023]
Abstract
Ultrasound assisted aqueous extraction of alginate from Sargassum muticum was proposed to minimize the use of chemicals, high temperatures and prolonged times, with comparable extraction yields to conventional acid/alkali procedures. The alginate, precipitated from the liquors obtained after ultrasound assisted extraction of fucoidan and phlorotannin fractions, and converted to alginic acid sodium salt by a green treatment was characterized by FTIR-ATR, 1H NMR, HPSEC, MALDI-TOF, rheology and citotoxitity. A clear influence of the sonication time was observed on the alginate molar mass, block structure, thermo-rheological and tumoral cell growth inhibition features. All tested hydrogels featured stable and thermo-reversible characteristics.
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Affiliation(s)
- N Flórez-Fernández
- Department of Chemical Engineering, University of Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004 Ourense, Spain.
| | - H Domínguez
- Department of Chemical Engineering, University of Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004 Ourense, Spain.
| | - M D Torres
- Department of Chemical Engineering, University of Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004 Ourense, Spain.
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23
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González‐Muñoz MJ, Conde E, Domínguez H, Torres MD. Recovery of phytochemical compounds from natural and blanched green broccoli using non‐isothermal autohydrolysis. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.14066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- María Jesús González‐Muñoz
- Department of Chemical Engineering University of Vigo (Campus Ourense) Edificio Politécnico, As Lagoas 32004 Ourense Spain
| | - Enma Conde
- Department of Chemical Engineering University of Vigo (Campus Ourense) Edificio Politécnico, As Lagoas 32004 Ourense Spain
| | - Herminia Domínguez
- Department of Chemical Engineering University of Vigo (Campus Ourense) Edificio Politécnico, As Lagoas 32004 Ourense Spain
| | - María Dolores Torres
- Department of Chemical Engineering University of Vigo (Campus Ourense) Edificio Politécnico, As Lagoas 32004 Ourense Spain
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Kilicarslan M, Ilhan M, Inal O, Orhan K. Preparation and evaluation of clindamycin phosphate loaded chitosan/alginate polyelectrolyte complex film as mucoadhesive drug delivery system for periodontal therapy. Eur J Pharm Sci 2018; 123:441-451. [DOI: 10.1016/j.ejps.2018.08.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 12/11/2022]
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