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Rathore K, Singh I, Balani K, Sharma S, Verma V. Fabrication and characterization of multi-layered coaxial agar-based electrospun biocomposite mat, novel replacement for transdermal patches. Int J Biol Macromol 2024; 275:133712. [PMID: 38977044 DOI: 10.1016/j.ijbiomac.2024.133712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 06/15/2024] [Accepted: 07/05/2024] [Indexed: 07/10/2024]
Abstract
In the performed study, a novel fabrication of agar-based nanofibers was electrospun in an asymmetric bilayer dressing for biomedical transdermal patches. The optimal parameters for the fabrication of agar-based nanofibers after optimization were a feed rate of 10 μL/min, a 7 cm collector-to-nozzle distance, a 15 kV applied voltage, and a 700-rpm rotating collector speed. Coaxial nanofibers, as a second asymmetric layer, were produced using polyvinyl alcohol (PVA) with cephalexin hydrate, an antibacterial drug, as the core and agar-PCL as the sheath. The morphology of the developed uniaxial and coaxial nanofibrous layers was analysed using a scanning electron microscope and transmission electron microscopy, respectively. For the formation of bilayer asymmetric structures, the agar-PCL uniaxial layer was fabricated over the layer of coaxial PVA and agar-PCL layers for sustained drug release. The agar-based nanofibrous mats exhibited tensile strength of 7 MPa with 40 % elongation failure, 8-fold increased swelling, enhanced wettability (60° contact angle), and a moisture transmission rate of 2174 g/m2/day. The developed coaxial bilayer mats exhibited antimicrobial activity, hemocompatibility, and cytocompatibility. Overall, this novel agar nanofibrous dressing offers promising potential for advanced biomedical applications, particularly as transdermal patches for efficient drug delivery systems.
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Affiliation(s)
- Kalpana Rathore
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India; Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Indrajeet Singh
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India
| | - Kantesh Balani
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India
| | - Sandeep Sharma
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, Punjab, India.
| | - Vivek Verma
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, India; Centre for Environmental Science & Engineering, Indian Institute of Technology Kanpur, India; Samtel Centre for Display Technologies, Indian Institute of Technology Kanpur, India; National Centre for Flexible Electronics, Indian Institute of Technology Kanpur, India.
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2
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Yang L, Liu Y, Li X, Li M, Li W, Wang T, Wang D. Large-Scale, Stretchable, Self-Protective, and Multifunctional Perovskite Luminescent Filament with Ultra-High Stability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400919. [PMID: 38498901 DOI: 10.1002/adma.202400919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/14/2024] [Indexed: 03/20/2024]
Abstract
Lead halide perovskites possess great application potential in flexible displays and wearable optoelectronics owing to their prominent optoelectronic properties. However, the intrinsic instability upon moisture, heat, and ultraviolet (UV) light irradiation hinders their development and application. In this work, an ultra-stable CsPbX3 (X = Cl, Br, I) perovskite luminescent filament (PLF) with high stretchability (≈2400%) and luminescence performance (photoluminescence quantum yield (PLQY) of 24.5%, tunable emission spectrum, and high color purity) is introduced by a facile environmental-friendly wet-spinning technology via solvent extraction. Benefiting from the in situ encapsulation of the hydrophobic thermoplastic polyurethane (TPU) and the chelation of Lewis base CO in TPU with Lewis acid Pb2+, the CsPbBr3 PLF demonstrates ultra-high photoluminescence (PL) stability when stored in ambient air and high humidity circumstance, annealed at 50 °C, and dipped in water for 30 days, illuminated under ultraviolet light for 300 min, and immersed in organic solvents and solutions with pH of 1-13 for 5 min, respectively. Impressively, it retains 80% of its initial PL after being recycled five times. Overall, the CsPbX3 PLF demonstrates promising prospects in multifunctional applications, including organic dyes and tensile strain sensing, flexible pattern displays, secondary anti-counterfeiting, and hazard warning systems.
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Affiliation(s)
- Liyan Yang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan, 430200, China
| | - Yunpeng Liu
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan, 430200, China
| | - Xiaofang Li
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan, 430200, China
| | - Mufang Li
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan, 430200, China
| | - Wei Li
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Tao Wang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Dong Wang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University), Ministry of Education, Wuhan, 430200, China
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3
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Li Y, Wu Y, Zhai H, Qiao C, Zhao G, Xue Z, Xia Y. Effect of the pre-crosslinking of Ba 2+ ions on wet spinning of agar fibers. Int J Biol Macromol 2024; 259:129169. [PMID: 38171435 DOI: 10.1016/j.ijbiomac.2023.129169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/29/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024]
Abstract
Decreased coagulation bath concentration and difficult recovery are classical issues observed during the wet spinning of fibers. In this paper, a novel method was presented for preparing environment-friendly agar fibers using deionized water as the coagulation and stretch baths. The addition of Ba2+ into the spinning solution increased the crosslinking time and improved the performance of spinning solution. The results showed that the introduction of Ba2+ in the spinning solution increased the viscosity of the spinning solution. Particularly, when the concentration of BaCl2 in the spinning solution was 7 wt%, the viscosity increased to 39.29 Pa·s, which made the molecular chain arrangement of agar more compact and ordered and promoted the gelation transformation of the spinning solution, resulting in an increase in the gel temperature from 0.2 °C (Ba-0/agar) to 5.4 °C (Ba-7/agar). The spinning solution was more conducive to the formation of fibers in deionized water. In addition, the physical and chemical properties of agar fibers were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, tensile testing, and scanning electron microscopy. The results showed that the use of deionized water as the coagulation bath can improve the color of fiber and solve the problem of fiber adhesion, whereas the mechanical strength of agar fibers with pre-cross-linking metal ions was also improved. For example, the breaking strength of Ba-7/agar/DIW was 0.73 cN/dtex while the breaking strength of Ba-0/agar/DIW was only 0.62 cN/dtex.
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Affiliation(s)
- Yan Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Qingdao University, Qingdao 266071, China
| | - Yuzhi Wu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Qingdao University, Qingdao 266071, China
| | - Hongjie Zhai
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Qingdao University, Qingdao 266071, China
| | - Cuixia Qiao
- Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
| | - Gang Zhao
- Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
| | - Zhixin Xue
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Qingdao University, Qingdao 266071, China; Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China.
| | - Yanzhi Xia
- State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Qingdao University, Qingdao 266071, China
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Pinto MMR, Sánchez AAC, da Costa SM, do Nascimento JHO, Galvão F, de Lima FS, Ferraz HG, Oliveira RC, da Costa SA. Agarose fibers with glycerol and graphene oxide and functional properties for potential application in biomaterials. Int J Biol Macromol 2023; 253:127204. [PMID: 37797856 DOI: 10.1016/j.ijbiomac.2023.127204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 09/11/2023] [Accepted: 09/30/2023] [Indexed: 10/07/2023]
Abstract
Agarose has numerous applications in biochemistry and medical textiles. This study aimed to produce agarose-graphene oxide-glycerol fibers and analyze their properties. The agarose gel was prepared by dissolving the polymer in 9:1 (v/v) dimethyl sulfoxide (DMSO): H2O, followed by spinning in an ethanol bath (1:1 (v/v) ethanol: H2O) at 20 °C. Fibers were obtained using 8 % (m/v) agarose, 2 % (m/v) glycerol, and 0.5 % and 1 % (m/v) graphene oxide (GO). The fibers had a titer of 18.32-32.49 tex and, a tenacity of 1.40-3.35 cN/tex. GO increased the thermal resistance by 79 %. The presence of glycerol and GO was confirmed and analyzed by FTIR and XPS. Fiber water absorption was decreased by 30 % with the GO addition. The weight loss increased by 55 % after glycerol addition, 51 % with GO addition, and 36 % with glycerol and GO simultaneous addition. Furthermore, GO exhibited 100 % inhibition for both S. aureus (gram-positive) and E. coli bacteria (gram-negative). Fiber F1, with only agarose, inhibited S. aureus by 34.93 %, F2 with 2 % glycerol by 48.72 %, F3 with 0.5 % GO by 63.42 %, and F4 with 2 % glycerol and 0.5 % GO by 30.65 %. However, the inhibition increased to 49.43 % with 1 % GO. The agarose fibers showed low inhibition for E. coli, ranging from 3.35 to 12.12 %.
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Affiliation(s)
- Marília Martins Rodrigues Pinto
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | - Annie Alexandra Cerón Sánchez
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | - Sirlene Maria da Costa
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | | | - Felipe Galvão
- Departament of Textile Engineering - DET, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 300 - Lagoa Nova, Natal, RN, Brazil
| | - Fernando Soares de Lima
- Laboratory of Technical Textiles and Protection Products, Institute for Technological Research of São Paulo State, São Paulo 05508-901, SP, Brazil
| | - Humberto Gomes Ferraz
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 580, Cidade Universitária, 05508-000 São Paulo, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil. Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Vila Universitária, 1701290, Bauru, SP - Brazil
| | - Silgia Aparecida da Costa
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil.
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Zhuang S, Zhu K, Xu L, Hu J, Wang J. Adsorption of Co 2+ and Sr 2+ in aqueous solution by a novel fibrous chitosan biosorbent. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 825:153998. [PMID: 35192812 DOI: 10.1016/j.scitotenv.2022.153998] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
In this study, a novel fibrous chitosan biosorbent was prepared using LiOH/KOH/urea/H2O (4.5:7:8:80.5 by weight) as spinning solvent. The fibrous chitosan exhibited a higher adsorption capacity and a faster adsorption rate for Co2+ and Sr2+, compared with spherical chitosan due to its high specific surface area (16.9 m2 g-1), uniform fineness (24.1 μm), and good mechanical strength. The adsorption capacity of fibrous chitosan for Co2+ and Sr2+ was 31.3 mg g-1 and 20.0 mg g-1, respectively, which was higher than that of spherical chitosan (22.5 mg g-1for Co2+ and 8.9 mg g-1 for Sr2+). The coordination between -NH2/-OH of chitosan and the nuclide ions was the rate-limiting step. The improvement of adsorption performance was due to the higher specific surface area which increased the exposure degree of functional groups (adsorptive sites). This new wet-spun fibrous chitosan biosorbent showed great potential in the adsorptive removal of nuclides ions from aqueous solution.
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Affiliation(s)
- Shuting Zhuang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China
| | - Kunkun Zhu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, PR China
| | - Lejin Xu
- Department of Nuclear Engineering and Technology, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Jun Hu
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
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Fahma F, Febiyanti I, Lisdayana N, Sari YW, Noviana D, Yunus M, Kadja GTM, Kusumaatmaja A. Production of Polyvinyl Alcohol–Alginate–Nanocellulose Fibers. STARCH-STARKE 2022. [DOI: 10.1002/star.202100032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Farah Fahma
- Department of Agroindustrial Technology Faculty of Agricultural Engineering and Technology IPB University (Bogor Agricultural University) Gedung Fateta, Kampus IPB Darmaga Bogor 16680 Indonesia
| | - Ida Febiyanti
- Department of Agroindustrial Technology Faculty of Agricultural Engineering and Technology IPB University (Bogor Agricultural University) Gedung Fateta, Kampus IPB Darmaga Bogor 16680 Indonesia
| | - Nurmalisa Lisdayana
- Department of Agroindustrial Technology Institut Teknologi Sumatera Jalan Terusan Ryacudu, Way Hui Jati Agung, Lampung Selatan, 35365 Indonesia
| | - Yessie Widya Sari
- Department of Physics Faculty of Mathematics and Natural Sciences IPB University (Bogor Agricultural University) Jl. Meranti, Kampus IPB Darmaga Bogor 16680 Indonesia
| | - Deni Noviana
- Department of Clinic, Reproduction and Pathology Faculty of Veterinary Medicine IPB University (Bogor Agricultesdural University) Jl. Agatis, Kampus IPB Darmaga Bogor 16680 Indonesia
| | - Muchammad Yunus
- Department of Veterinary Parasitology Faculty of Veterinary Medicine Airlangga University Campus C, Jalan Mulyorejo Surabaya 60115 Indonesia
| | - Grandprix Thomryes Marth Kadja
- Division of Inorganic and Physical Chemistry Institut Teknologi Bandung Jalan Ganesha no. 10 Bandung 40132 Indonesia
- Research Center for Nanosciences and Nanotechnology Institut Teknologi Bandung Jalan Ganesha no. 10 Bandung 40132 Indonesia
| | - Ahmad Kusumaatmaja
- Department of Physics Faculty of Mathematics and Natural Sciences Gadjah Mada University Sekip Utara Bulaksumur Yogyakarta 55281 Indonesia
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Hua J, Liu C, Fei B, Liu Z. Self-Healable and Super-Tough Double-Network Hydrogel Fibers from Dynamic Acylhydrazone Bonding and Supramolecular Interactions. Gels 2022; 8:gels8020101. [PMID: 35200482 PMCID: PMC8871786 DOI: 10.3390/gels8020101] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/27/2022] [Accepted: 02/01/2022] [Indexed: 01/10/2023] Open
Abstract
Macroscopic hydrogel fibers are highly desirable for smart textiles, but the fabrication of self-healable and super-tough covalent/physical double-network hydrogels is rarely reported. Herein, copolymers containing ketone groups were synthesized and prepared into a dynamic covalent hydrogel via acylhydrazone chemistry. Double-network hydrogels were constructed via the dynamic covalent crosslinking of copolymers and the supramolecular interactions of iota-carrageenan. Tensile tests on double-network and parental hydrogels revealed the successful construction of strong and tough hydrogels. The double-network hydrogel precursor was wet spun to obtain macroscopic fibers with controlled drawing ratios. The resultant fibers reached a high strength of 1.35 MPa or a large toughness of 1.22 MJ/m3. Highly efficient self-healing performances were observed in hydrogel fibers and their bulk specimens. Through the simultaneous healing of covalent and supramolecular networks under acidic and heated conditions, fibers achieved rapid and near-complete healing with 96% efficiency. Such self-healable and super-tough hydrogel fibers were applied as shape memory fibers for repetitive actuating in response to water, indicating their potential in intelligent fabrics.
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Affiliation(s)
- Jiachuan Hua
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China; (J.H.); (C.L.)
| | - Chang Liu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China; (J.H.); (C.L.)
| | - Bin Fei
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China; (J.H.); (C.L.)
- Correspondence:
| | - Zunfeng Liu
- Key Laboratory of Functional Polymer Materials, College of Chemistry, Nankai University, Tianjin 300071, China;
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Part I: NiMoO4 Nanostructures Synthesized by the Solution Combustion Method: A Parametric Study on the Influence of Synthesis Parameters on the Materials’ Physicochemical, Structural, and Morphological Properties. Molecules 2022; 27:molecules27030776. [PMID: 35164057 PMCID: PMC8839866 DOI: 10.3390/molecules27030776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/24/2022] Open
Abstract
The impact of process conditions on the synthesis of NiMoO4 nanostructures using a solution combustion synthesis (SCS) method, in which agar powder and Ni(NO3)2 were utilized as fuel and as the oxidant, respectively, was thoroughly studied. The results show that the calcination temperature had a significant implication on the specific surface area, phase composition, particle size, band gap, and crystallite size. The influence of calcination time on the resulting physicochemical/structural/morphological properties of NiMoO4 nanostructures was found to be a major effect during the first 20 min, beyond which these properties varied to a lesser extent. The increase in the Ni/Mo atomic ratio in the oxide impacted the combustion dynamics of the system, which led to the formation of higher surface area materials, with the prevalence of the β-phase in Ni-rich samples. Likewise, the change in the pH of the precursor solution showed that the combustion reaction is more intense in the high-pH region, entailing major implications on the physicochemical properties and phase composition of the samples. The change in the fuel content showed that the presence of agar is important, as it endows the sample with a fluffy, porous texture and is also vital for the preponderance of the β-phase.
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Physical, structural, and water barrier properties of emulsified blend film based on konjac glucomannan/agar/gum Arabic incorporating virgin coconut oil. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112683] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Santos KL, Machado de Sousa PH, Rangel Moreira Cavalcanti-Mata ME, Barros de Vasconcelos L. Mixed leather of açaí, banana, peanut, and guarana syrup: the effect of agar and gellan gum use on quality attributes. Int J Gastron Food Sci 2021. [DOI: 10.1016/j.ijgfs.2021.100407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Han J, Han X, Xue Z, Wang Q, Xia Y, Zhao Z. An eco‐friendly procedure for achieving high‐yield carrageenan from
Hypnea cervicornis
suitable for wet spinning. J Appl Polym Sci 2021. [DOI: 10.1002/app.50833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jie Han
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio‐fibers and Eco‐textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials Qingdao University Qingdao China
| | - Xiao Han
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio‐fibers and Eco‐textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials Qingdao University Qingdao China
| | - Zhixin Xue
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio‐fibers and Eco‐textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials Qingdao University Qingdao China
| | - Qianqian Wang
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio‐fibers and Eco‐textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials Qingdao University Qingdao China
| | - Yanzhi Xia
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio‐fibers and Eco‐textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials Qingdao University Qingdao China
| | - Zhihui Zhao
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio‐fibers and Eco‐textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials Qingdao University Qingdao China
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12
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Seo JW, Tsevelkhorloo M, Lee CR, Kim SH, Kang DK, Asghar S, Hong SK. Molecular Characterization of a Novel 1,3-α-3,6-Anhydro-L-Galactosidase, Ahg943, with Cold- and High-Salt-Tolerance from Gayadomonas joobiniege G7. J Microbiol Biotechnol 2020; 30:1659-1669. [PMID: 32876074 PMCID: PMC9728383 DOI: 10.4014/jmb.2008.08017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 12/15/2022]
Abstract
1,3-α-3,6-anhydro-L-galactosidase (α-neoagarooligosaccharide hydrolase) catalyzes the last step of agar degradation by hydrolyzing neoagarobiose into monomers, D-galactose, and 3,6-anhydro-Lgalactose, which is important for the bioindustrial application of algal biomass. Ahg943, from the agarolytic marine bacterium Gayadomonas joobiniege G7, is composed of 423 amino acids (47.96 kDa), including a 22-amino acid signal peptide. It was found to have 67% identity with the α-neoagarooligosaccharide hydrolase ZgAhgA, from Zobellia galactanivorans, but low identity (< 40%) with the other α-neoagarooligosaccharide hydrolases reported. The recombinant Ahg943 (rAhg943, 47.89 kDa), purified from Escherichia coli, was estimated to be a monomer upon gel filtration chromatography, making it quite distinct from other α-neoagarooligosaccharide hydrolases. The rAhg943 hydrolyzed neoagarobiose, neoagarotetraose, and neoagarohexaose into D-galactose, neoagarotriose, and neoagaropentaose, respectively, with a common product, 3,6- anhydro-L-galactose, indicating that it is an exo-acting α-neoagarooligosaccharide hydrolase that releases 3,6-anhydro-L-galactose by hydrolyzing α-1,3 glycosidic bonds from the nonreducing ends of neoagarooligosaccharides. The optimum pH and temperature of Ahg943 activity were 6.0 and 20°C, respectively. In particular, rAhg943 could maintain enzyme activity at 10°C (71% of the maximum). Complete inhibition of rAhg943 activity by 0.5 mM EDTA was restored and even, remarkably, enhanced by Ca2+ ions. rAhg943 activity was at maximum at 0.5 M NaCl and maintained above 73% of the maximum at 3M NaCl. Km and Vmax of rAhg943 toward neoagarobiose were 9.7 mg/ml and 250 μM/min (3 U/mg), respectively. Therefore, Ahg943 is a unique α-neoagarooligosaccharide hydrolase that has cold- and high-salt-adapted features, and possibly exists as a monomer.
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Affiliation(s)
- Ju Won Seo
- Department of Bioscience and Bioinformatics, Myongji University, Yongin 7058, Republic of Korea
| | - Maral Tsevelkhorloo
- Department of Bioscience and Bioinformatics, Myongji University, Yongin 7058, Republic of Korea
| | - Chang-Ro Lee
- Department of Bioscience and Bioinformatics, Myongji University, Yongin 7058, Republic of Korea
| | - Sang Hoon Kim
- Department of Animal Resources Science, Dankook University, Cheonan 31116, Republic of Korea
| | - Dae-Kyung Kang
- Department of Animal Resources Science, Dankook University, Cheonan 31116, Republic of Korea
| | - Sajida Asghar
- Department of Bioscience and Bioinformatics, Myongji University, Yongin 7058, Republic of Korea
| | - Soon-Kwang Hong
- Department of Bioscience and Bioinformatics, Myongji University, Yongin 7058, Republic of Korea,Corresponding author Phone: 82-31-330-6198 Fax: 82-31-335-8249 E-mail:
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Biomimicry of microbial polysaccharide hydrogels for tissue engineering and regenerative medicine – A review. Carbohydr Polym 2020; 241:116345. [DOI: 10.1016/j.carbpol.2020.116345] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/13/2020] [Accepted: 04/17/2020] [Indexed: 12/17/2022]
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14
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Dong M, Wu D, Han J, Wang Y, Xue Z, Xia Y. Comparison of Two Different Preparation Methods of Wet-Spun Carrageenan Fibers Directly from Chondrus Extractions. ACS OMEGA 2020; 5:6661-6665. [PMID: 32258901 PMCID: PMC7114757 DOI: 10.1021/acsomega.9b04435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/12/2020] [Indexed: 06/11/2023]
Abstract
In order to improve the characters of carrageenan fibers, two different process methods were presented in this study. Dopes prepared directly from Chondrus extraction by Route A-adding NaOH after Chondrus extraction-or Route B-using NaOH solution to extract Chondrus and carrageenan fibers (Fibers A and Fibers B)-were obtained using the wet spinning process using barium chloride as the coagulant at room temperature. The properties of dopes were studied by dynamic light scattering and gel permeation chromatography. The properties of Fibers A and Fibers B were comprehensively studied by Fourier transform infrared, thermal analysis, scanning electron microcopy, and tensile testing. The results showed that carrageenan with a larger molecule weight in Dope A and Fibers A showed higher intensity, better morphology, and stable thermal properties.
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Affiliation(s)
- Min Dong
- State Key Laboratory
of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of
Marine Biobased Fibers and Ecological Textiles, College of Chemistry
and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
| | - Dawei Wu
- State Key Laboratory
of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of
Marine Biobased Fibers and Ecological Textiles, College of Chemistry
and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
| | - Jie Han
- State Key Laboratory
of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of
Marine Biobased Fibers and Ecological Textiles, College of Chemistry
and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
| | - Yingxia Wang
- Public Technology Service Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Zhixin Xue
- State Key Laboratory
of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of
Marine Biobased Fibers and Ecological Textiles, College of Chemistry
and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
| | - Yanzhi Xia
- State Key Laboratory
of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of
Marine Biobased Fibers and Ecological Textiles, College of Chemistry
and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
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15
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Al Faruque MA, Remadevi R, Razal JM, Naebe M. Impact of the wet spinning parameters on the alpaca‐based polyacrylonitrile composite fibers: Morphology and enhanced mechanical properties study. J Appl Polym Sci 2020. [DOI: 10.1002/app.49264] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
| | - Rechana Remadevi
- Deakin University, Institute for Frontier Materials (IFM) Geelong Victoria Australia
| | - Joselito M. Razal
- Deakin University, Institute for Frontier Materials (IFM) Geelong Victoria Australia
| | - Maryam Naebe
- Deakin University, Institute for Frontier Materials (IFM) Geelong Victoria Australia
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16
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Park SH, Lee CR, Hong SK. Implications of agar and agarase in industrial applications of sustainable marine biomass. Appl Microbiol Biotechnol 2020; 104:2815-2832. [PMID: 32036436 DOI: 10.1007/s00253-020-10412-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/17/2020] [Accepted: 01/23/2020] [Indexed: 12/20/2022]
Abstract
Agar, a major component of the cell wall of red algae, is an interesting heteropolysaccharide containing an unusual sugar, 3,6-anhydro-L-galactose. It is widely used as a valuable material in various industrial and experimental applications due to its characteristic gelling and stabilizing properties. Agar-derived oligosaccharides or mono-sugars produced by various agarases have become a promising subject for research owing to their unique biological activities, including anti-obesity, anti-diabetic, immunomodulatory, anti-tumor, antioxidant, skin-whitening, skin-moisturizing, anti-fatigue, and anti-cariogenic activities. Agar is also considered as an alternative sustainable source of biomass for chemical feedstock and biofuel production to substitute for the fossil resource. In this review, we summarize various biochemically characterized agarases, which are useful for industrial applications, such as neoagarooligosaccharide or agarooligosaccharide production and saccharification of agar. Additionally, we succinctly discuss various recent studies that have been conducted to investigate the versatile biological activities of agar-derived saccharides and biofuel production from agar biomass. This review provides a basic framework for understanding the importance of agarases and agar-derived saccharides with broad applications in pharmaceutical, cosmetic, food, and bioenergy industries.
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Affiliation(s)
- Si Hyoung Park
- Department of Biological Sciences, Myongji University, Yongin, Gyeonggido, 17058, Republic of Korea
| | - Chang-Ro Lee
- Department of Biological Sciences, Myongji University, Yongin, Gyeonggido, 17058, Republic of Korea
| | - Soon-Kwang Hong
- Department of Biological Sciences, Myongji University, Yongin, Gyeonggido, 17058, Republic of Korea.
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17
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Hou X, Xue Z, Liu J, Yan M, Xia Y, Ma Z. Characterization and property investigation of novel eco‐friendly agar/carrageenan/TiO
2
nanocomposite films. J Appl Polym Sci 2018. [DOI: 10.1002/app.47113] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- X. Hou
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - Z. Xue
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - J. Liu
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - M. Yan
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - Y. Xia
- Institute of Marine Biobased Material Qingdao University Qingdao, 266071 China
- State Key Laboratory of Biopolysaccharide Fibers and Ecological Textiles Qingdao University Qingdao, 266071 China
| | - Z. Ma
- College of Chemistry and Chemical Engineering Qingdao University Qingdao, 266071 China
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18
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Dong M, Xue Z, Liu J, Yan M, Xia Y, Wang B. Preparation of carrageenan fibers with extraction of Chondrus via wet spinning process. Carbohydr Polym 2018; 194:217-224. [DOI: 10.1016/j.carbpol.2018.04.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/30/2018] [Accepted: 04/10/2018] [Indexed: 12/25/2022]
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19
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Dong M, Xue Z, Wang L, Xia Y. NaOH induced the complete dissolution of ι-carrageenan and the corresponding mechanism. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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