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Shishparenok AN, Koroleva SA, Dobryakova NV, Gladilina YA, Gromovykh TI, Solopov AB, Kudryashova EV, Zhdanov DD. Bacterial cellulose films for L-asparaginase delivery to melanoma cells. Int J Biol Macromol 2024; 276:133932. [PMID: 39025173 DOI: 10.1016/j.ijbiomac.2024.133932] [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: 05/07/2024] [Revised: 06/24/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
L-asparaginase (L-ASNase) is an enzyme that catalyzes the hydrolysis of L-asparagine to L-aspartic acid and ammonia and is used to treat acute lymphoblastic leukemia. It is also toxic to the cells of some solid tumors, including melanoma cells. Immobilization of this enzyme can improve its activity against melanoma tumor cells. In this work, the properties of bacterial cellulose (BC) and feasibility of BC films as a new carrier for immobilized L-ASNase were investigated. Different values of growth time were used to obtain BC films with different thicknesses and porosities, which determine the water content and the ability to adsorb and release L-ASNase. Fourier transform infrared spectroscopy confirmed the adsorption of the enzyme on the BC films. The total activity of adsorbed L-ASNase and its release were investigated for films grown for 48, 72 or 96 h. BC films grown for 96 h showed the most pronounced release as described by zero-order and Korsmayer-Peppas models. The release was characterized by controlled diffusion where the drug was released at a constant rate. BC films with immobilized L-ASNase could induce cytotoxicity in A875 human melanoma cells. With further development, immobilization of L-ASNase on BC may become a potent strategy for anticancer drug delivery to superficial tumors.
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Affiliation(s)
- Anastasiya N Shishparenok
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 10/8 Pogodinskaya St., 119121 Moscow, Russia
| | - Svetlana A Koroleva
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 10/8 Pogodinskaya St., 119121 Moscow, Russia; Institute of Biochemical Technology and Nanotechnology, People's Friendship University of Russia Named after Patrice Lumumba (RUDN University), 6 Miklukho-Maklaya St., 117198 Moscow, Russia; ChemBioTech Department, Moscow Polytechnic University, 38 Bolshaya Semenovskaya st., Moscow 107023, Russia
| | - Natalya V Dobryakova
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 10/8 Pogodinskaya St., 119121 Moscow, Russia
| | - Yulia A Gladilina
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 10/8 Pogodinskaya St., 119121 Moscow, Russia
| | - Tatiana I Gromovykh
- ChemBioTech Department, Moscow Polytechnic University, 38 Bolshaya Semenovskaya st., Moscow 107023, Russia
| | - Alexey B Solopov
- A.V. Topchiev Institute of Petrochemical Synthesis, RAS (TIPS RAS), 29 Leninsky Prospekt, 119991 Moscow, Russia
| | - Elena V Kudryashova
- Chemical Faculty, Lomonosov Moscow State University, Leninskie Gory St. 1, 119991 Moscow, Russia
| | - Dmitry D Zhdanov
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 10/8 Pogodinskaya St., 119121 Moscow, Russia.
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2
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Behrouznejad B, Sadat SB, Masaeli E. The orchestration of sustained drug delivery by bacterial cellulose/gelatin nanocomposites reinforced with carboxylic carbon nanotubes. Carbohydr Polym 2024; 333:121917. [PMID: 38494242 DOI: 10.1016/j.carbpol.2024.121917] [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: 11/18/2023] [Revised: 01/16/2024] [Accepted: 02/04/2024] [Indexed: 03/19/2024]
Abstract
Recently, modifying bacterial cellulose (BC) by compositing it with other nano-biomaterials has become inevitable to achieve its desired properties in drug delivery. To address this, our study endeavors to utilize an in-situ fabrication method for the creation of a multifunctional BC/gelatin (BC/Gel) platform reinforced with carboxylic multi-walled carbon nanotubes (cMWCNTs) as a sustainable delivery model of biomolecules. Incipiently, cMWCNTs were loaded with human serum albumin (HSA) as a drug model, with an optimized nanoparticle-to-protein ratio of 1:5 and loading efficiency of 90.0 ± 1.0 % before incorporation into BC/Gel hydrogels. By comparison, nanocomposition improved the surface area and overall porosity of BC/Gel up to 58.0 ± 1.3 m2/g and 85.5 ± 1.1 %, respectively. Likewise, significant wettability of 44.0 ± 0.1° and dramatic biodegradation rate of 36.9 ± 1.2 % were other exceptionally gained attributes. Meanwhile, with a Zero-order kinetic mechanism, CNT-HSA integration facilitated the controlled release of 56.0 ± 0.9 % HSA over 7 days. Drug-loaded nanocomposites showcased >70 % viability during in vitro cellular trials using Human Foreskin Fibroblasts (HFF). Overall, BC/Gel/CNT-HSA nanocomposite exhibited favorable cell behavior, devoid of cytotoxic manifestations. Consequently, this BC-based nanocomposite scaffold implicates the premiere capability in the sustained delivery of an extended range of protein biomolecules, offering a promising therapeutic avenue for bolstering tissue regeneration.
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Affiliation(s)
- Bahareh Behrouznejad
- Department of Biology, Faculty of Modern Sciences and Technologies, ACECR Institute of Higher Education (Isfahan Branch) Isfahan, P.O. Box 84175-443, Iran; Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 81593-58686, Iran
| | - Sayedeh Boshra Sadat
- Department of Biology, Faculty of Modern Sciences and Technologies, ACECR Institute of Higher Education (Isfahan Branch) Isfahan, P.O. Box 84175-443, Iran; Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 81593-58686, Iran
| | - Elahe Masaeli
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 81593-58686, Iran.
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3
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Prilepskii A, Nikolaev V, Klaving A. Conductive bacterial cellulose: From drug delivery to flexible electronics. Carbohydr Polym 2023; 313:120850. [PMID: 37182950 DOI: 10.1016/j.carbpol.2023.120850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023]
Abstract
Bacterial cellulose (BC) is a chemically pure, non-toxic, and non-pyrogenic natural polymer with high mechanical strength and a complex fibrillar porous structure. Due to these unique biological and physical properties, BC has been amply used in the food industry and, to a somewhat lesser extent, in medicine and cosmetology. To expand its application the BC structure can be modified. This review presented some recent developments in electrically conductive BC-based composites. The as-synthesized BC is an excellent dielectric. Conductive polymers, graphene oxide, nanoparticles and other materials are used to provide it with conductive properties. Conductive bacterial cellulose (CBC) is currently investigated in numerous areas including electrically conductive scaffolds for tissue regeneration, implantable and wearable biointerfaces, flexible batteries, sensors, EMI shielding composites. However, there are several issues to be addressed before CBC composites can enter the market, namely, composite mechanical strength reduction, porosity decrease, change in chemical characteristics. Some of them can be addressed both at the stage of synthesis, biologically, or by adding (nano)materials with the required properties to the BC structure. We propose several solutions to meet the challenges and suggest some promising BC applications.
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Zinovicius A, Rozene J, Merkelis T, Bruzaite I, Ramanavicius A, Morkvenaite-Vilkonciene I. Evaluation of a Yeast-Polypyrrole Biocomposite Used in Microbial Fuel Cells. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22010327. [PMID: 35009869 PMCID: PMC8749611 DOI: 10.3390/s22010327] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/30/2021] [Indexed: 05/31/2023]
Abstract
Electrically conductive polymers are promising materials for charge transfer from living cells to the anodes of electrochemical biosensors and biofuel cells. The modification of living cells by polypyrrole (PPy) causes shortened cell lifespan, burdens the replication process, and diminishes renewability in the long term. In this paper, the viability and morphology non-modified, inactivated, and PPy-modified yeasts were evaluated. The results displayed a reduction in cell size, an incremental increase in roughness parameters, and the formation of small structural clusters of polymers on the yeast cells with the increase in the pyrrole concentration used for modification. Yeast modified with the lowest pyrrole concentration showed minimal change; thus, a microbial fuel cell (MFC) was designed using yeast modified by a solution containing 0.05 M pyrrole and compared with the characteristics of an MFC based on non-modified yeast. The maximal generated power of the modified system was 47.12 mW/m2, which is 8.32 mW/m2 higher than that of the system based on non-modified yeast. The open-circuit potentials of the non-modified and PPy-modified yeast-based cells were 335 mV and 390 mV, respectively. Even though applying a PPy layer to yeast increases the charge-transfer efficiency towards the electrode, the damage done to the cells due to modification with a higher concentration of PPy diminishes the amount of charge transferred, as the current density drops by 846 μA/cm2. This decrease suggests that modification by PPy may have a cytotoxic effect that greatly hinders the metabolic activity of yeast.
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Affiliation(s)
- Antanas Zinovicius
- Department of Mechatronics, Robotics and Digital Manufacturing, Vilnius Gediminas Technical University, 03224 Vilnius, Lithuania; (A.Z.); (J.R.); (T.M.)
| | - Juste Rozene
- Department of Mechatronics, Robotics and Digital Manufacturing, Vilnius Gediminas Technical University, 03224 Vilnius, Lithuania; (A.Z.); (J.R.); (T.M.)
| | - Timas Merkelis
- Department of Mechatronics, Robotics and Digital Manufacturing, Vilnius Gediminas Technical University, 03224 Vilnius, Lithuania; (A.Z.); (J.R.); (T.M.)
| | - Ingrida Bruzaite
- Department of Chemistry and Bioengineering, Faculty of Fundamental Sciences, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania;
| | - Arunas Ramanavicius
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, 03225 Vilnius, Lithuania
- Laboratory of Nanotechnology, State Research Institute Centre for Physical Sciences and Technology, 02300 Vilnius, Lithuania
| | - Inga Morkvenaite-Vilkonciene
- Department of Mechatronics, Robotics and Digital Manufacturing, Vilnius Gediminas Technical University, 03224 Vilnius, Lithuania; (A.Z.); (J.R.); (T.M.)
- Laboratory of Electrochemical Energy Conversion, State Research Institute Centre for Physical Sciences and Technology, 10257 Vilnius, Lithuania
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MXene-Based Aptasensor: Characterization and High-Performance Voltammetry Detection of Deoxynivalenol. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00847-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Elhi F, Peikolainen AL, Kiefer R, Tamm T. Cellulose-Multiwall Carbon Nanotube Fiber Actuator Behavior in Aqueous and Organic Electrolyte. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3213. [PMID: 32707652 PMCID: PMC7412319 DOI: 10.3390/ma13143213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/12/2020] [Accepted: 07/16/2020] [Indexed: 01/28/2023]
Abstract
As both consumers and producers are shifting from fossil-derived materials to other, more sustainable approaches, there is a growing interest in bio-origin and biodegradable polymers. In search of bio-degradable electro-mechanically active materials, cellulose-multi wall carbon nanotube (Cell-CNT) composites are a focus for the development of actuators and sensors. In the current study, our aim was to fabricate Cell-CNT composite fibers and study their electro-mechanical response as linear actuators in aqueous and propylene carbonate-based electrolyte solutions. While the response was (expectedly) strongly solvent dependent, the different solvents also revealed unexpected phenomena. Cell-CNT fibers in propylene carbonate revealed a strong back-relaxation process at low frequencies, and also a frequency dependent response direction change (change of actuation direction). Cell-CNT fibers operated in aqueous electrolyte showed response typical to electrochemical capacitors including expansion at discharging with controllable actuation dependence on charge density. While the response was similarly stable in both electrolyte solution systems, the aqueous electrolytes were clearly favorable for Cell-CNT with 3.4 times higher conductivities, 4.3 times higher charge densities and 11 times higher strain.
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Affiliation(s)
- Fred Elhi
- Intelligent Materials and Systems Lab, Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia; (F.E.); (A.-L.P.); (T.T.)
| | - Anna-Liisa Peikolainen
- Intelligent Materials and Systems Lab, Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia; (F.E.); (A.-L.P.); (T.T.)
| | - Rudolf Kiefer
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
| | - Tarmo Tamm
- Intelligent Materials and Systems Lab, Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia; (F.E.); (A.-L.P.); (T.T.)
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7
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Lin D, Liu Z, Shen R, Chen S, Yang X. Bacterial cellulose in food industry: Current research and future prospects. Int J Biol Macromol 2020; 158:1007-1019. [PMID: 32387361 DOI: 10.1016/j.ijbiomac.2020.04.230] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 04/10/2020] [Accepted: 04/26/2020] [Indexed: 12/11/2022]
Abstract
Bacterial cellulose, a pure exocellular polysaccharide produced by microorganisms, has many excellent properties as compared with plant-derived cellulose, including high water holding capability, high surface area, rheological properties, biocompatibility. Due to its suspending, thickening, water holding, stabilizing, bulking and fluid properties, BC has been demonstrated as a promising low calorie bulking ingredient for the development of novel rich functional foods of different forms such as powder gelatinous or shred foams, which facilitate its application in food industry. In this review, the recent reports on the biosynthesis, structure and general application of bacterial cellulose in food industry have been summarized and discussed. The main application of bacterial cellulose in current food industry includes raw food materials, additive ingredients, packing materials, delivery system, enzyme and cell immobilizers. In addition, we also propose the potential challenges and explore the solution of expanding the application of BC in various fields.
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Affiliation(s)
- Dehui Lin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China.
| | - Zhe Liu
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Rui Shen
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Siqian Chen
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China.
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
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8
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Miyashiro D, Hamano R, Umemura K. A Review of Applications Using Mixed Materials of Cellulose, Nanocellulose and Carbon Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E186. [PMID: 31973149 PMCID: PMC7074973 DOI: 10.3390/nano10020186] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 02/06/2023]
Abstract
Carbon nanotubes (CNTs) have been extensively studied as one of the most interesting nanomaterials for over 25 years because they exhibit excellent mechanical, electrical, thermal, optical, and electrical properties. In the past decade, the number of publications and patents on cellulose and nanocellulose (NC) increased tenfold. Research on NC with excellent mechanical properties, flexibility, and transparency is accelerating due to the growing environmental problems surrounding us such as CO2 emissions, the accumulation of large amounts of plastic, and the depletion of energy resources such as oil. Research on mixed materials of cellulose, NC, and CNTs has been expanding because these materials exhibit various characteristics that can be controlled by varying the combination of cellulose, NC to CNTs while also being biodegradable and recyclable. An understanding of these mixed materials is required because these characteristics are diverse and are expected to solve various environmental problems. Thus far, many review papers on cellulose, NC or CNTs have been published. Although guidance for the suitable application of these mixed materials is necessary, there are few reviews summarizing them. Therefore, this review introduces the application and feature on mixed materials of cellulose, NC and CNTs.
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Affiliation(s)
- Daisuke Miyashiro
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (R.H.); (K.U.)
- ESTECH CORP., 2-7-31 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Ryo Hamano
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (R.H.); (K.U.)
| | - Kazuo Umemura
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (R.H.); (K.U.)
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9
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Zhang T, Qu H, Sun K, Li S. Facile Fabrication of Co
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Embedded in a Boron and Nitrogen Co‐Doped Carbon Matrix as Sodium‐Ion Battery Anode. ChemElectroChem 2019. [DOI: 10.1002/celc.201801843] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tianwei Zhang
- Office of assets and laboratory managementQingdao University of Technology Qingdao 266033 China
| | - Hong Qu
- Office of assets and laboratory managementQingdao University of Technology Qingdao 266033 China
| | - Kuangzheng Sun
- Academy of Art and DesignQingdao University of Technology Qingdao 266033 China
| | - Shaochun Li
- Academy of civil EngineeringQingdao University of Technology Qingdao 266033 China
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Mensah A, Lv P, Narh C, Huang J, Wang D, Wei Q. Sequestration of Pb(II) Ions from Aqueous Systems with Novel Green Bacterial Cellulose Graphene Oxide Composite. MATERIALS 2019; 12:ma12020218. [PMID: 30634615 PMCID: PMC6357055 DOI: 10.3390/ma12020218] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 12/22/2018] [Accepted: 01/03/2019] [Indexed: 11/20/2022]
Abstract
In this study, a novel green adsorbent material prepared by the esterification of bacterial cellulose (BC) and graphene oxide (GO), richly containing hydroxyl, alkyl, and carboxylate groups was characterised by FTIR (Fourier Transform infrared spectroscopy), XRD (X-ray diffraction), SEM (Scanning electron microscopy) and TGA (Thermo-graphimetric analysis). The specific surface area (SSA) and pore size distribution (PSD) analysis of materials were also analysed. Batch experiments–adsorption studies confirmed the material to have a very high Pb2+ removal efficiency of over 90% at pH 6–8. Kinetic studies showed that the uptake of metal ions was rapid with equilibrium attained after 30 min and fitted well with the pseudo-second-order rate model (PSO). Isotherm results with a maximum adsorption capacity (Qmax) of 303.03 mg/g were well described by Langmuir’s model compared to Freundlich. Desorption and re-adsorption experiments realised that both adsorbent and adsorbates could be over 90–95% efficiently recovered and reused using 0.1 M HNO3 and 0.1 M HCl.
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Affiliation(s)
- Alfred Mensah
- Key Laboratory of Eco-textiles, Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, China.
| | - Pengfei Lv
- Key Laboratory of Eco-textiles, Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, China.
| | - Christopher Narh
- Key Laboratory of Eco-textiles, Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, China.
| | - Jieyu Huang
- Key Laboratory of Eco-textiles, Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, China.
| | - Di Wang
- Key Laboratory of Eco-textiles, Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, China.
| | - Qufu Wei
- Key Laboratory of Eco-textiles, Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, China.
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Hosseini H, Kokabi M, Mousavi SM. Conductive bacterial cellulose/multiwall carbon nanotubes nanocomposite aerogel as a potentially flexible lightweight strain sensor. Carbohydr Polym 2018; 201:228-235. [DOI: 10.1016/j.carbpol.2018.08.054] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/23/2018] [Accepted: 08/12/2018] [Indexed: 12/01/2022]
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12
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Dong J, Ghiladi RA, Wang Q, Cai Y, Wei Q. Protoporphyrin-IX conjugated cellulose nanofibers that exhibit high antibacterial photodynamic inactivation efficacy. NANOTECHNOLOGY 2018; 29:265601. [PMID: 29611819 DOI: 10.1088/1361-6528/aabb3c] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Towards the development of anti-infective nanoscale materials employing a photodynamic mechanism of action, we report the synthesis, physical properties (SEM, mechanical strength, water contact angle), spectroscopic characterization (infrared, Raman, DRUV), and evaluation of antibacterial efficacy of porphyrin-conjugated regenerated cellulose nanofibers, termed RC-TETA-PPIX-Zn. Cellulose acetate was electrospun to produce nanofibers, thermally treated to enhance mechanical strength, and finally hydrolyzed to produce regenerated cellulose (RC) nanofibers that possessed a high surface area and nanofibrous structure. Covalent grafting of a protoporphyrin IX (PPIX) photosensitizer using epichlorohydrin/triethylenetetramine (TETA), followed by zinc chelation, afforded RC-TETA-PPIX-Zn. The high surface area afforded by the nanofibers and efficient photosensitizer conjugation led to a very high loading of 412 nmol PPIX/mg material, corresponding to a degree of substitution of 0.1. Antibacterial efficacy was evaluated against Staphylococcus aureus (ATCC-6538) and Escherichia coli (ATCC-8099), with our best results achieving detection limit inactivation (99.999+%) of both bacteria after only 20 min illumination (Xe lamp, λ ≥ 420 nm). No statistically significant loss in antibacterial activity was observed when using nanofibers that had been 'photo-aged' with 5 h of pre-illumination to simulate the effects of photobleaching. Post aPDI, scanning electron microscopy revealed that the bacteria had undergone cell membrane leakage, consistent with oxidative damage caused by photo-generated reactive oxygen species. Taken together, the conjugation strategy employed here provides a scalable, facile and efficient route to creating nanofibrous materials from natural polymers with a high photosensitizer loading, enabling the use of commercially-available neutral porphyrin photosensitizers, such as PPIX, in the design and synthesis of potent anti-infective nanomaterials.
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Affiliation(s)
- Jiancheng Dong
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, People's Republic of China
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13
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Umemura K, Sato S. Scanning Techniques for Nanobioconjugates of Carbon Nanotubes. SCANNING 2018; 2018:6254692. [PMID: 30008981 PMCID: PMC6020491 DOI: 10.1155/2018/6254692] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/29/2018] [Indexed: 05/17/2023]
Abstract
Nanobioconjugates using carbon nanotubes (CNTs) are attractive and promising hybrid materials. Various biological applications using the CNT nanobioconjugates, for example, drug delivery systems and nanobiosensors, have been proposed by many authors. Scanning techniques such as scanning electron microscopy (SEM) and scanning probe microscopy (SPM) have advantages to characterize the CNT nanobioconjugates under various conditions, for example, isolated conjugates, conjugates in thin films, and conjugates in living cells. In this review article, almost 300 papers are categorized based on types of CNT applications, and various scanning data are introduced to illuminate merits of scanning techniques.
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Affiliation(s)
- Kazuo Umemura
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 1628601, Japan
| | - Shizuma Sato
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 1628601, Japan
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14
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Shaghaleh H, Xu X, Wang S. Current progress in production of biopolymeric materials based on cellulose, cellulose nanofibers, and cellulose derivatives. RSC Adv 2018; 8:825-842. [PMID: 35538958 PMCID: PMC9076966 DOI: 10.1039/c7ra11157f] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/19/2017] [Indexed: 12/22/2022] Open
Abstract
Cellulose has attracted considerable attention as the strongest potential candidate feedstock for bio-based polymeric material production. During the past decade, significant progress in the production of biopolymers based on different cellulosic forms has been achieved. This review highlights the most recent advances and developments in the three main routes for the production of cellulose-based biopolymers, and discusses their scope and applications. The use of cellulose fibers, nanocellulose, and cellulose derivatives as fillers or matrices in biocomposite materials is an efficient biosustainable alternative for the production of high-quality polymer composites and functional polymeric materials. The use of cellulose-derived monomers (glucose and other platform chemicals) in the synthesis of sustainable biopolymers and functional polymeric materials not only provides viable replacements for most petroleum-based polymers but also enables the development of novel polymers and functional polymeric materials. The present review describes the current status of biopolymers based on various forms of cellulose and the scope of their importance and applications. Challenges, promising research trends, and methods for dealing with challenges in exploitation of the promising properties of different forms of cellulose, which are vital for the future of the global polymeric industry, are discussed. Sustainable cellulosic biopolymers have potential applications not only in the replacement of existing petroleum-based polymers but also in cellulosic functional polymeric materials for a range of applications from electrochemical and energy-storage devices to biomedical applications.
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Affiliation(s)
- Hiba Shaghaleh
- College of Chemical Engineering, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Nanjing Forestry University Nanjing Jiangsu 210037 People's Republic of China +86 25 85428369 +86 25 85428369
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals Nanjing 210037 People's Republic of China +86 25 85428369 +86 25 85428369
| | - Xu Xu
- College of Chemical Engineering, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Nanjing Forestry University Nanjing Jiangsu 210037 People's Republic of China +86 25 85428369 +86 25 85428369
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals Nanjing 210037 People's Republic of China +86 25 85428369 +86 25 85428369
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing 210037 People's Republic of China +86 25 85428369 +86 25 85428369
| | - Shifa Wang
- College of Chemical Engineering, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Nanjing Forestry University Nanjing Jiangsu 210037 People's Republic of China +86 25 85428369 +86 25 85428369
- Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals Nanjing 210037 People's Republic of China +86 25 85428369 +86 25 85428369
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing 210037 People's Republic of China +86 25 85428369 +86 25 85428369
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Adewunmi AA, Ismail S, Sultan AS. Carbon Nanotubes (CNTs) Nanocomposite Hydrogels Developed for Various Applications: A Critical Review. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-016-0379-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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