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Malani M, Thodikayil AT, Saha S, Nirmal J. Carboxylated nanofibrillated cellulose empowers moxifloxacin to overcome Staphylococcus aureus biofilm in bacterial keratitis. Carbohydr Polym 2024; 324:121558. [PMID: 37985120 DOI: 10.1016/j.carbpol.2023.121558] [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: 06/30/2023] [Revised: 10/21/2023] [Accepted: 11/02/2023] [Indexed: 11/22/2023]
Abstract
Bacterial keratitis is one of the vision-threatening ocular diseases that is increasing at an alarming rate due to antimicrobial resistance. One of the primary causes of antimicrobial resistance could be biofilm formation, which alters the mechanism and physiology of the microorganisms. Even a potent drug fails to inhibit biofilm due to the extracellular polysaccharide matrix surrounding the bacteria, inhibiting the permeation of drugs. Therefore, we aimed to develop carboxylated nanocellulose fibers loaded with moxifloxacin (Mox-cNFC) as a novel drug delivery system to treat bacterial corneal infection. Nanocellulose fibers were fabricated using a two-step method involving citric acid hydrolysis followed by TEMPO oxidation to introduce carboxylated groups (1.12 mmol/g). The Mox-cNFC particles showed controlled drug release till 40 h through diffusion. In vitro biofilm inhibition studies showed the particle's ability to disrupt the biofilm matrix and enhance the drug penetration to achieve optimal concentrations that inhibit the persister cells (without increasing minimum inhibitory concentration), thereby reducing the bacterial drug-resistant property. In vivo studies revealed the therapeutic potential of Mox-cNFC to treat Staphylococcus aureus-induced bacterial keratitis with once-a-day treatment, unlike neat moxifloxacin. Mox-cNFC could improve patient compliance by reducing the frequency of instillation and a controlled drug release to prevent toxicity.
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Affiliation(s)
- Manisha Malani
- Translational Pharmaceutics Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, Telangana, India
| | | | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India.
| | - Jayabalan Nirmal
- Translational Pharmaceutics Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad 500078, Telangana, India.
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2
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Lignocellulosic nanomaterials production from wheat straw via peracetic acid pretreatment and their application in plastic composites. Carbohydr Polym 2022; 295:119857. [DOI: 10.1016/j.carbpol.2022.119857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/24/2022] [Accepted: 07/07/2022] [Indexed: 11/19/2022]
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3
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Guo M, Hsieh YL. 2-Bromopropionyl Esterified Cellulose Nanofibrils as Chain Extenders or Polyols in Stoichiometrically Optimized Syntheses of High-Strength Polyurethanes. Biomacromolecules 2022; 23:4574-4585. [PMID: 36200931 DOI: 10.1021/acs.biomac.2c00747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
2-Bromopropionyl bromide esterified cellulose nanofibrils (Br-CNFs) facilely synthesized from one-pot esterification of cellulose and in situ ultrasonication exhibited excellent N,N-dimethylformamide (DMF) dispersibility and reactivity to partially replace either chain extender or soft segment diol in the stoichiometrically optimized syntheses of polyurethanes (PUs). PUs polymerized with Br-CNF to replace either 11 mol% 1,4-butadiol chain extender OHs or 1.8 mol% polytetramethylene ether glycol OHs, i.e., 1.5 or 0.3 wt% Br-CNF in PUs, exhibited an over 3 times increased modulus, nearly 4 times higher strength, and a 50% increase in strain. In either role, the experimental modulus exceeding those predicted by the Halpin-Tsai model gave evidence of the stoichiometrically optimized covalent bonding with Br-CNF, while the improved strain was attributed to increased hydrogen-bonding interactions between Br-CNF and the soft segment. These new Br-CNFs not only offer novel synthetic strategies to incorporate nanocelluloses in polyurethanes but also maximize their reinforcing effects via their versatile polyol reactant and cross-linking roles, demonstrating promising applications in the synthesis of other polymers.
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Affiliation(s)
- Mengzhe Guo
- Biological and Agricultural Engineering and Chemical Engineering, University of California at Davis, Davis, California95616-8722, United States
| | - You-Lo Hsieh
- Biological and Agricultural Engineering and Chemical Engineering, University of California at Davis, Davis, California95616-8722, United States
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Preparation and Evaluation of Undaria pinnatifida Nanocellulose in Fabricating Pickering Emulsions for Protection of Astaxanthin. Foods 2022; 11:foods11060876. [PMID: 35327298 PMCID: PMC8956011 DOI: 10.3390/foods11060876] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 02/01/2023] Open
Abstract
Pickering emulsions stabilized from natural sources are often used to load unstable bio-active ingredients, such as astaxanthin (AXT), to improve their functionality. In this study, AXT-loaded Pickering emulsions were successfully prepared by 2,2,6,6-tetramethy-1-piperidine oxide (TEMPO)-oxidized cellulose nanofibers (TOCNFs) from Undaria pinnatifida. The morphology analysis showed that TOCNFs had a high aspect ratio and dispersibility, which could effectively prevent the aggregation of oil droplets. The stable emulsion was obtained after exploring the influence of different factors (ultrasonic intensity, TOCNFs concentration, pH, and ionic strength). As expected, AXT-loaded Pickering emulsions showed good stability at 50 °C and 14 days of storage. The results of simulated in vitro digestion showed that the emulsions exhibited higher release of free fatty acids (FFAs) and bioaccessibility of AXT than those in sunflower oil. Hence, our work brought new insights into the preparation of Pickering emulsions and their applications in protection and sustained, controlled release of AXT.
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Morcillo-Martín R, Espinosa E, Rabasco-Vílchez L, Sanchez LM, de Haro J, Rodríguez A. Cellulose Nanofiber-Based Aerogels from Wheat Straw: Influence of Surface Load and Lignin Content on Their Properties and Dye Removal Capacity. Biomolecules 2022; 12:biom12020232. [PMID: 35204733 PMCID: PMC8961610 DOI: 10.3390/biom12020232] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 02/04/2023] Open
Abstract
Water pollution is one of the most serious problems worldwide. Nanocellulose-based aerogels usually show excellent adsorption capacities due to their high aspect ratio, specific surface area and surface charge, making them ideal for water purification. In this work, (ligno)cellulose nanofibers (LCNFs/CNFs) from wheat straw residues were obtained using two types of pre-treatments: mechanical (Mec) and TEMPO-mediated oxidization (TO), to obtain different consistency (0.2, 0.4, 0.6 and 0.8) bioaerogels, and their adsorption capacities as dye removers were further studied. The materials were characterized in terms of density, porosity and mechanical properties. An inversely proportional relationship was observed between the consistencies of the aerogels and their achieved densities. Despite the increase in density, all samples showed porosities above 99%. In terms of mechanical properties, the best results were obtained for the 0.8% consistency LCNF and CNF-Mec aerogels, reaching 67.87 kPa and 64.6 kPa for tensile strength and Young’s modulus, respectively. In contrast, the adsorption capacity of the aerogels was better for TEMPO-oxidized aerogels, reaching removal rates of almost 100% for the CNF-TO5 samples. Furthermore, the residual lignin content in LCNF-Mec aerogels showed a great improvement in the removal capacity, reaching rates higher than 80%, further improving the cost efficiency of the samples due to the reduction in chemical treatments.
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Affiliation(s)
- Ramón Morcillo-Martín
- Biopren Group (RNM940), Chemical Engineering Department, Faculty of Science, Universidad de Córdoba, 14014 Córdoba, Spain; (L.R.-V.); (L.M.S.); (J.d.H.); (A.R.)
- Department of Food Science and Technology, Faculty of Veterinary, Universidad de Córdoba, 14014 Córdoba, Spain
- Correspondence: (R.M.-M.); (E.E.); Tel.: +34-957-218-478 (E.E.)
| | - Eduardo Espinosa
- Biopren Group (RNM940), Chemical Engineering Department, Faculty of Science, Universidad de Córdoba, 14014 Córdoba, Spain; (L.R.-V.); (L.M.S.); (J.d.H.); (A.R.)
- Correspondence: (R.M.-M.); (E.E.); Tel.: +34-957-218-478 (E.E.)
| | - Laura Rabasco-Vílchez
- Biopren Group (RNM940), Chemical Engineering Department, Faculty of Science, Universidad de Córdoba, 14014 Córdoba, Spain; (L.R.-V.); (L.M.S.); (J.d.H.); (A.R.)
- Department of Food Science and Technology, Faculty of Veterinary, Universidad de Córdoba, 14014 Córdoba, Spain
| | - Laura M. Sanchez
- Biopren Group (RNM940), Chemical Engineering Department, Faculty of Science, Universidad de Córdoba, 14014 Córdoba, Spain; (L.R.-V.); (L.M.S.); (J.d.H.); (A.R.)
- Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), CONICET–Universidad Nacional de Mar de Plata (UNMdP), Mar de Plata 7600, Argentina
| | - Jorge de Haro
- Biopren Group (RNM940), Chemical Engineering Department, Faculty of Science, Universidad de Córdoba, 14014 Córdoba, Spain; (L.R.-V.); (L.M.S.); (J.d.H.); (A.R.)
- Department of Food Science and Technology, Faculty of Veterinary, Universidad de Córdoba, 14014 Córdoba, Spain
| | - Alejandro Rodríguez
- Biopren Group (RNM940), Chemical Engineering Department, Faculty of Science, Universidad de Córdoba, 14014 Córdoba, Spain; (L.R.-V.); (L.M.S.); (J.d.H.); (A.R.)
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Guo M, Hsieh YL. One-pot synthesis of 2-bromopropionyl esterified cellulose nanofibrils as hydrophobic coating and film. RSC Adv 2022; 12:15070-15082. [PMID: 35702441 PMCID: PMC9112886 DOI: 10.1039/d2ra00722c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 05/01/2022] [Indexed: 12/11/2022] Open
Abstract
Bromo-esterified cellulose nanofibrils have been one-pot synthesized by direct heterogeneous 2-bromopropionyl esterification and in situ ultra-sonication to serve as versatile hydrophobic nm thick coating or 100 μm thick film.
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Affiliation(s)
- Mengzhe Guo
- Department of Biological and Agricultural Engineering, University of California, Davis, California, 95616, USA
| | - You-Lo Hsieh
- Department of Biological and Agricultural Engineering, University of California, Davis, California, 95616, USA
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7
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Mechanical properties of cellulose nanofibril papers and their bionanocomposites: A review. Carbohydr Polym 2021; 273:118507. [PMID: 34560938 DOI: 10.1016/j.carbpol.2021.118507] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/14/2021] [Accepted: 07/26/2021] [Indexed: 12/25/2022]
Abstract
Cellulose nanofibril (CNF) paper has various applications due to its unique advantages. Herein, we present the intrinsic mechanical properties of CNF papers, along with the preparation and properties of nanoparticle-reinforced CNF composite papers. The literature on CNF papers reveals a strong correlation between the intrafibrillar network structure and the resulting mechanical properties. This correlation is found to hold for all primary factors affecting mechanical properties, indicating that the performance of CNF materials depends directly on and can be tailored by controlling the intrafibrillar network of the system. The parameters that influence the mechanical properties of CNF papers were critically reviewed. Moreover, the effect on the mechanical properties by adding nanofillers to CNF papers to produce multifunctional composite products was discussed. We concluded this article with future perspectives and possible developments in CNFs and their bionanocomposite papers.
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9
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Kassem I, Ablouh EH, El Bouchtaoui FZ, Kassab Z, Khouloud M, Sehaqui H, Ghalfi H, Alami J, El Achaby M. Cellulose nanocrystals-filled poly (vinyl alcohol) nanocomposites as waterborne coating materials of NPK fertilizer with slow release and water retention properties. Int J Biol Macromol 2021; 189:1029-1042. [PMID: 34411612 DOI: 10.1016/j.ijbiomac.2021.08.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 01/11/2023]
Abstract
Effective fertilizers management is essential for sustainable agricultural practices. One way to improve agronomic practices is by using slow-release fertilizers (SRF) that have shown interesting role in optimizing nutrients availability for plants growth. Considering the current ecological concerns, coated SRF using ecofriendly materials continue to attract great attention. In this context, novel waterborne and biodegradable coating nanocomposite formulations were elaborated from cellulose nanocrystals (CNC)-filled poly (vinyl alcohol) (PVA) for slow release NPK fertilizer with water retention property. CNC were extracted from hemp stalks using sulfuric acid hydrolysis process and their physico-chemical characteristics were investigated. CNC with various weight loadings (6, 10, 14.5 wt%) were incorporated into PVA polymer via solvent mixing method to produce viscous coating nanocomposite formulations with moderated shear viscosity. Uniform PVA@CNC coating microlayer was applied on the surface of NPK fertilizer granules in Wurster chamber of a fluidized bed dryer at controlled spraying and drying parameters. The nitrogen, phosphorus and potassium release profiles from coated NPK fertilizer were determined in water and soil. It was found that the coating materials extended the N-P-K nutrients release time from 3 days for uncoated fertilizer to 10 and 30 days for neat PVA- and CNC/PVA-coated fertilizer in soil medium, indicating the positive role of the presence of CNC in the PVA-based coatings. The morphology, coating rate and crushing strength of the as-prepared coated products were investigated in addition to their effect on water holding capacity and water retention of the soil. Enhanced crushing strength and water retention with a positive effect on the soil moisture were observed after coating NPK fertilizer, mainly with high CNC content (14.5 wt%). Therefore, these proposed nanocomposite coating materials showed a great potential for producing a new class of SRF with high nutrients use efficiency and water retention capacity, which could be beneficial to sustainable crop production.
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Affiliation(s)
- Ihsane Kassem
- Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir 43150, Morocco
| | - El-Houssaine Ablouh
- Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir 43150, Morocco.
| | - Fatima-Zahra El Bouchtaoui
- Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir 43150, Morocco
| | - Zineb Kassab
- Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir 43150, Morocco
| | - Mehdi Khouloud
- Chemical & Biochemical Sciences-Green Process Engineering (CBS-GPE), Mohammed VI Polytechnic University, OCP Jorf Lasfar Industrial Complex, P.O. Box 118, El Jadida 24025, Morocco
| | - Houssine Sehaqui
- Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir 43150, Morocco
| | - Hakim Ghalfi
- Innovation OCP, OCP Jorf Lasfar Industrial Complex, P.O. Box 118, El Jadida 24025, Morocco
| | - Jones Alami
- Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir 43150, Morocco
| | - Mounir El Achaby
- Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Benguerir 43150, Morocco.
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Wasim M, Shi F, Liu J, Farooq A, Khan SU, Salam A, Hassan T, Zhao X. An overview of Zn/ZnO modified cellulosic nanocomposites and their potential applications. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02689-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Dalle Vacche S, Karunakaran V, Patrucco A, Zoccola M, Douard L, Ronchetti S, Gallo M, Schreier A, Leterrier Y, Bras J, Beneventi D, Bongiovanni R. Valorization of Byproducts of Hemp Multipurpose Crop: Short Non-Aligned Bast Fibers as a Source of Nanocellulose. Molecules 2021; 26:4723. [PMID: 34443315 PMCID: PMC8400396 DOI: 10.3390/molecules26164723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 11/16/2022] Open
Abstract
Nanocellulose was extracted from short bast fibers, from hemp (Cannabis sativa L.) plants harvested at seed maturity, non-retted, and mechanically decorticated in a defibering apparatus, giving non-aligned fibers. A chemical pretreatment with NaOH and HCl allowed the removal of most of the non-cellulosic components of the fibers. No bleaching was performed. The chemically pretreated fibers were then refined in a beater and treated with a cellulase enzyme, followed by mechanical defibrillation in an ultrafine friction grinder. The fibers were characterized by microscopy, infrared spectroscopy, thermogravimetric analysis and X-ray diffraction after each step of the process to understand the evolution of their morphology and composition. The obtained nanocellulose suspension was composed of short nanofibrils with widths of 5-12 nm, stacks of nanofibrils with widths of 20-200 nm, and some larger fibers. The crystallinity index was found to increase from 74% for the raw fibers to 80% for the nanocellulose. The nanocellulose retained a yellowish color, indicating the presence of some residual lignin. The properties of the nanopaper prepared with the hemp nanocellulose were similar to those of nanopapers prepared with wood pulp-derived rod-like nanofibrils.
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Affiliation(s)
- Sara Dalle Vacche
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (V.K.); (S.R.); (M.G.); (R.B.)
| | - Vijayaletchumy Karunakaran
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (V.K.); (S.R.); (M.G.); (R.B.)
- Universiti Kuala Lumpur, Malaysian Institute of Chemical and Bioengineering Technology (UniKL MICET), Lot 1988 Kawasan Perindustrian Bandar Vendor, Taboh Naning, Alor Gajah, Melaka 78000, Malaysia
| | - Alessia Patrucco
- Consiglio Nazionale delle Ricerche, Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato, 13900 Biella, Italy; (A.P.); (M.Z.)
| | - Marina Zoccola
- Consiglio Nazionale delle Ricerche, Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato, 13900 Biella, Italy; (A.P.); (M.Z.)
| | - Loreleï Douard
- Université Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France; (L.D.); (J.B.); (D.B.)
| | - Silvia Ronchetti
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (V.K.); (S.R.); (M.G.); (R.B.)
| | - Marta Gallo
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (V.K.); (S.R.); (M.G.); (R.B.)
| | - Aigoul Schreier
- Laboratory for Processing of Advanced Composites (LPAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; (A.S.); (Y.L.)
| | - Yves Leterrier
- Laboratory for Processing of Advanced Composites (LPAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; (A.S.); (Y.L.)
| | - Julien Bras
- Université Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France; (L.D.); (J.B.); (D.B.)
| | - Davide Beneventi
- Université Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France; (L.D.); (J.B.); (D.B.)
| | - Roberta Bongiovanni
- Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (V.K.); (S.R.); (M.G.); (R.B.)
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Zhang Y, Yu J, Wang X, Durachko DM, Zhang S, Cosgrove DJ. Molecular insights into the complex mechanics of plant epidermal cell walls. Science 2021; 372:706-711. [PMID: 33986175 DOI: 10.1126/science.abf2824] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 03/29/2021] [Indexed: 12/26/2022]
Abstract
Plants have evolved complex nanofibril-based cell walls to meet diverse biological and physical constraints. How strength and extensibility emerge from the nanoscale-to-mesoscale organization of growing cell walls has long been unresolved. We sought to clarify the mechanical roles of cellulose and matrix polysaccharides by developing a coarse-grained model based on polymer physics that recapitulates aspects of assembly and tensile mechanics of epidermal cell walls. Simple noncovalent binding interactions in the model generate bundled cellulose networks resembling that of primary cell walls and possessing stress-dependent elasticity, stiffening, and plasticity beyond a yield threshold. Plasticity originates from fibril-fibril sliding in aligned cellulose networks. This physical model provides quantitative insight into fundamental questions of plant mechanobiology and reveals design principles of biomaterials that combine stiffness with yielding and extensibility.
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Affiliation(s)
- Yao Zhang
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Jingyi Yu
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Xuan Wang
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Daniel M Durachko
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Sulin Zhang
- Department of Engineering Science and Mechanics and Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA.
| | - Daniel J Cosgrove
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA.
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Chitbanyong K, Pisutpiched S, Khantayanuwong S, Theeragool G, Puangsin B. TEMPO-oxidized cellulose nanofibril film from nano-structured bacterial cellulose derived from the recently developed thermotolerant Komagataeibacter xylinus C30 and Komagataeibacter oboediens R37-9 strains. Int J Biol Macromol 2020; 163:1908-1914. [PMID: 32976905 DOI: 10.1016/j.ijbiomac.2020.09.124] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/03/2020] [Accepted: 09/17/2020] [Indexed: 01/19/2023]
Abstract
Bacterial cellulose (BC), prepared from two recently developed thermotolerant bacterial strains (Komagataeibacter xylinus C30 and Komagataeibacter oboediens R37-9), were used as a raw material to synthesize nanofibril films. Field-emission scanning electron microscope (FE-SEM) observations confirmed the ultrafine nano-structure of BC pellicle (BCP) with average fibril widths between 50 and 60 nm. The BC was directly oxidized in a TEMPO/NaBr/NaClO system at pH of 10 for 2 h. TEMPO-oxidized bacterial cellulose nanofibrils (TOBCN) were obtained by a mild mechanical treatment and the TOBCN films were prepared through heat-drying. The oxidation yielded a recovery ratio between 70 and 80% by weight with an increase in the carboxylate content of 0.9-1.0 mmol g -1. Nanofibrillation yields were more than 90% and the resulting high aspect ratio TOBCNs were ~6 nm in average width with >800 nm in lengths, when observed under transmission electron microscope (TEM). TOBCN film of K. xylinus C30 exhibited high transparency (79%), tensile strength (142 MPa), Young's modulus (7.13 GPa), elongation around failure (3.89%), and work of fracture (2.29 MJ m-3), when compared to the TOBCN films of K. oboediens R37-9 at 23 °C and 50% RH. Coefficients of thermal expansion of both the TOBCN films were low at around 6 ppm K-1.
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Affiliation(s)
- Korawit Chitbanyong
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
| | - Sawitree Pisutpiched
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
| | - Somwang Khantayanuwong
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
| | - Gunjana Theeragool
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Buapan Puangsin
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.
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Lin Q, Yan Y, Liu X, He B, Wang X, Wang X, Liu C, Ren J. Production of Xylooligosaccharide, Nanolignin, and Nanocellulose through a Fractionation Strategy of Corncob for Biomass Valorization. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02161] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Qixuan Lin
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Yuhuan Yan
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Xinxin Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Bei He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Xiaohui Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Xiaoying Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Chuanfu Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Junli Ren
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
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15
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Production of Cellulose Nanofibers from Olive Tree Harvest—A Residue with Wide Applications. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10050696] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
With the aim of identifying new sources to produce cellulose nanofibers, olive tree pruning biomass (OTPB) was proposed for valorization as a sustainable source of cellulose. OTPB was subjected to a soda pulping process for cellulose purification and to facilitate the delamination of the fiber in the nanofibrillation process. Unbleached and bleached pulp were used to study the effect of lignin in the production of cellulose nanofibers through different pretreatments (mechanical and TEMPO-mediated oxidation). High-pressure homogenization was used as the nanofibrillation treatment. It was observed that for mechanical pretreatment, the presence of lignin in the fiber produces a greater fibrillation, resulting in a smaller width than that achieved with bleached fiber. In the case of TEMPO-mediated oxidation, the cellulose nanofiber characteristics show that the presence of lignin has an adverse effect on fiber oxidation, resulting in lower nanofibrillation. It was observed that the crystallinity of the nanofibers is lower than that of the original fiber, especially for unbleached nanofibers. The residual lignin content resulted in a greater thermal stability of the cellulose nanofibers, especially for those obtained by TEMPO-mediated oxidation. The characteristics of the cellulose nanofibers obtained in this work identify a gateway to many possibilities for reinforcement agents in paper suspension and polymeric matrices.
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16
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Gorur YC, Larsson PA, Wågberg L. Self-Fibrillating Cellulose Fibers: Rapid In Situ Nanofibrillation to Prepare Strong, Transparent, and Gas Barrier Nanopapers. Biomacromolecules 2020; 21:1480-1488. [PMID: 32167304 PMCID: PMC7307884 DOI: 10.1021/acs.biomac.0c00040] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Cellulose nanofibrils
(CNFs) prepared from wood biomass are promising
candidates to replace oil-based materials in, for example, packaging
applications. However, CNFs’ affinity for water combined with
their small size leads to very slow and energy-demanding processes
for handling and removal of water. To a large extent, this is the
major roadblock that prevents a feasible production of dry CNF-based
materials on an industrial scale. In this work, self-fibrillating
fibers (SFFs) from wood, where the fibrils can be liberated by external
stimuli, were prepared via sequential TEMPO and periodate oxidation
reactions. Papers made from these modified fibers using conventional
laboratory papermaking methods were then in situ nanofibrillated via
a modest pH increase. With a dewatering time of less than 10 s for
a 3 g/L dispersion, SFFs represent a major improvement over conventional
CNF nanopapers that take approximately 6 h to dewater. Moreover, 100
g/m2 nanopapers obtained through in situ fibrillation exhibited
comparable, if not superior, properties to those reported for conventionally
made CNF films. A tensile strength of 184 MPa, a Young’s modulus
of 5.2 GPa, a strain at break of 4.6%, 90% optical transmittance,
and an oxygen permeability of 0.7 cm3 μm m–2 d–1 kPa–1 at 50% RH were measured
for SFF nanopapers. Furthermore, in situ nanofibrillation of the SFFs
can also be achieved from already dried papers, facilitating numerous
possibilities in terms of logistics and handling for an industrial
scale-up and transportation of nanomaterials. Overall, stimuli-induced
SFFs indeed enable a rapid production of strong, transparent, gas
barrier nanopapers, which likely can be industrially scaled up and
eventually compete with the oil-based plastics in the market for packaging
materials.
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Affiliation(s)
- Yunus Can Gorur
- Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Per A Larsson
- Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Lars Wågberg
- Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
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17
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Salama A, Abou-Zeid RE, Cruz-Maya I, Guarino V. Soy protein hydrolysate grafted cellulose nanofibrils with bioactive signals for bone repair and regeneration. Carbohydr Polym 2020; 229:115472. [PMID: 31826419 DOI: 10.1016/j.carbpol.2019.115472] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/29/2019] [Accepted: 10/13/2019] [Indexed: 01/10/2023]
Abstract
TEMPO oxidized cellulose nanofibers (T-CNF) were prepared from cellulose pulp which is extracted from bagasse. Soy protein hydrolysate (SPH) was grafted on T-CNF via amidation of carboxylic groups. Biomineralization was, then, assessed via calcium phosphates (CaP) precipitation in twice-simulated body fluid until formation of a new bioactive material. Protein was efficiently grafted without alteration of morphology and nanofibrils packing as reported by Fourier Transform infrared analysis /X Ray Diffraction /Scanning and Transmission Electron Microscopy / Atomic Force Microscopy. Highly crystalline calcium phosphate deposits - ca. 22.1% - were detected, with a Ca/P ratio equal to 1.63, in agreement with native bone apatite composition. In vitro response of human Mesenchymal Stem Cells confirmed the biocompatibility. No significant differences in terms of cell adhesion were recognized while a significant increase in cell proliferation was detected until 7 days. The presence of calcium phosphates tends to cover the nanofibrillar pattern, inducing the inhibition of cell proliferation and promoting the ex-novo precipitation of mineral phases. All the results suggest a promising use of these biomaterials in the repair and/or the regeneration of hard tissues such as bone.
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Affiliation(s)
- Ahmed Salama
- Cellulose and Paper Department, National Research Center, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Ragab E Abou-Zeid
- Cellulose and Paper Department, National Research Center, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, Naples, Italy; Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, Naples, Italy.
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18
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4-Acetamido-TEMPO-Mediated Oxidation of Wood Chips and Thermomechanical Pulp in Large Scale. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Wang R, Rosen T, Zhan C, Chodankar S, Chen J, Sharma PR, Sharma SK, Liu T, Hsiao BS. Morphology and Flow Behavior of Cellulose Nanofibers Dispersed in Glycols. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ruifu Wang
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Tomas Rosen
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Chengbo Zhan
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Shirish Chodankar
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
| | - Jiahui Chen
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3101, United States
| | - Priyanka R. Sharma
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Sunil K. Sharma
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Tianbo Liu
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3101, United States
| | - Benjamin S. Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
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20
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Souza LO, Lessa OA, Dias MC, Tonoli GHD, Rezende DVB, Martins MA, Neves ICO, de Resende JV, Carvalho EEN, de Barros Vilas Boas EV, de Oliveira JR, Franco M. Study of morphological properties and rheological parameters of cellulose nanofibrils of cocoa shell (Theobroma cacao L.). Carbohydr Polym 2019; 214:152-158. [PMID: 30925984 DOI: 10.1016/j.carbpol.2019.03.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/08/2019] [Accepted: 03/12/2019] [Indexed: 01/19/2023]
Abstract
Cocoa shell was evaluated as a precursor for cellulose nanofibrils (NFCs) using mechanical defibrillation. Its morphology was analysed using optical microscopy and scanning electron microscopy with field emission. Rheological and mechanical behaviour were evaluated through flow curves with a strain rate ranging from 0 to 300 s-1 at 25 °C and by means of oscillatory frequency sweeps (0.01 Hz-10 Hz) and shear stress (3 Pa). The thermal-mechanical behaviour was determined by a temperature sweep with a heating rate of 3 °C min-1 and a temperature range of 25 °C-100 °C. Micrographs identified the presence of protoxilem with a mean diameter of 23.34 nm. The flow curve showed the characteristic behaviour of a pseudoplastic fluid. The storage module (G') and the loss modulus (G″) were dependent on the frequency applied, indicating that the material exhibits a weak gel characteristic. The viscoelastic characteristics were influenced by temperature. Therefore, cocoa shell is a new alternative in the production of nanocellulose.
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Affiliation(s)
- Lucas Oliveira Souza
- Post-Graduation Program in Engineering and Food Science, State University of Southwest Bahia, 45700-000, Itapetinga, Brazil
| | - Ozana Almeida Lessa
- Post-Graduation Program in Chemical and Biochemical Process Technology, Federal University of Rio de Janeiro, 21949-900, Rio de Janeiro, Brazil
| | - Matheus Cordazzo Dias
- Department of Forest Science, Federal University of Lavras, 37200-000, Lavras, Brazil
| | | | - Denilde Vilas Bôas Rezende
- Laboratory of Biotransformation and Organic Biocatalysis, Department of Exact Sciences and Technology, State University of Santa Cruz, 45654-370, Ilhéus, Brazil
| | - Maria Alice Martins
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentation, 13560-970, São Carlos, Brazil
| | | | | | | | | | - Julieta Rangel de Oliveira
- Laboratory of Biotransformation and Organic Biocatalysis, Department of Exact Sciences and Technology, State University of Santa Cruz, 45654-370, Ilhéus, Brazil
| | - Marcelo Franco
- Laboratory of Biotransformation and Organic Biocatalysis, Department of Exact Sciences and Technology, State University of Santa Cruz, 45654-370, Ilhéus, Brazil.
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21
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Oun AA, Shankar S, Rhim JW. Multifunctional nanocellulose/metal and metal oxide nanoparticle hybrid nanomaterials. Crit Rev Food Sci Nutr 2019; 60:435-460. [PMID: 31131614 DOI: 10.1080/10408398.2018.1536966] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Nanocellulose materials are derived from cellulose, the most abundant biopolymer on the earth. Nanocellulose have been extensively used in the field of food packaging materials, wastewater treatment, drug delivery, tissue engineering, hydrogels, aerogels, sensors, pharmaceuticals, and electronic sectors due to their unique chemical structure and excellent mechanical properties. On the other hand, metal and metal oxide nanoparticles (NP) such as Ag NP, ZnO NP, CuO NP, and Fe3O4 NP have a variety of functional properties such as UV-barrier, antimicrobial, and magnetic properties. Recently, nanocelluloses materials have been used as a green template for producing metal or metal oxide nanoparticles. As a result, multifunctional nanocellulose/metal or metal oxide hybrid nanomaterials with high antibacterial properties, ultraviolet barrier properties, and mechanical properties were prepared. This review emphasized recent information on the synthesis, properties, and potential applications of multifunctional nanocellulose-based hybrid nanomaterials with metal or metal oxides such as Ag NP, ZnO NP, CuO NP, and Fe3O4 NP. The nanocellulose-based hybrid nanomaterials have huge potential applications in the area of food packaging, biopharmaceuticals, biomedical, and cosmetics.
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Affiliation(s)
- Ahmed A Oun
- Food Engineering and Packaging Department, Food Technology Research Institute, Agricultural Research Center, Giza, Egypt
| | - Shiv Shankar
- Center for Humanities and Sciences, BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul, Republic of Korea
| | - Jong-Whan Rhim
- Center for Humanities and Sciences, BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul, Republic of Korea
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22
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Sultana T, Van Hai H, Abueva C, Kang HJ, Lee SY, Lee BT. TEMPO oxidized nano-cellulose containing thermo-responsive injectable hydrogel for post-surgical peritoneal tissue adhesion prevention. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:12-21. [PMID: 31146982 DOI: 10.1016/j.msec.2019.03.110] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 03/28/2019] [Accepted: 03/28/2019] [Indexed: 12/13/2022]
Abstract
The objective of this study was to present an effective injectable adhesion barrier comprised of TEMPO-oxidized cellulose nanofiber (TOCN), methyl cellulose, carboxymethyl cellulose, and polyethylene glycol. Hydrogels with different concentrations (0.2, 0.5, 0.8, 1% w/v) of bio compatible TOCN were investigated to determine their abilities to prevent post-surgical peritoneal adhesion using a rat cecal wall abrasion model. Sol-gel transition at body temperature (37 °C) was optimized by adjusting concentration of sodium ions (Na+), with a gelation time of 45 ± 7 s. These TOCN containing hydrogels showed non cytotoxicity to rat bone marrow mesenchymal stem cells (RBMSCs) and L929 fibroblast cells as cell models during in vitro assessment. Degradation studies revealed that, TOCN concentration in hydrogel was inversely proportional to hydrolytic degradation rate. From in vivo evaluations, TOCN 0.2 hydrogel significantly reduced peritoneal adhesion in rat (n = 8) compared to untreated controls based on gross observation, histological analysis, and expression analysis of marker proteins. By taking advantages of thermo gelling, high stability, non-invasive way of application and rapid recovery potential, TOCN containing bio compatible hydrogel could be used as a cost-effective barrier to efficiently inhibit post-surgical peritoneal adhesions.
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Affiliation(s)
- Tamanna Sultana
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan 31151, Republic of Korea
| | - Ho Van Hai
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan 31151, Republic of Korea
| | - Celine Abueva
- Institute of Tissue Regeneration, Soonchunhyang University, Cheonan 31151, Republic of Korea
| | - Hoe Jin Kang
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan 31151, Republic of Korea
| | - Sun-Young Lee
- Division of Environmental Material Engineering, Department of Forest Products, Korea Forest Research Institute, Seoul, Republic of Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan 31151, Republic of Korea; Institute of Tissue Regeneration, Soonchunhyang University, Cheonan 31151, Republic of Korea.
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23
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Effects of pH on Nanofibrillation of TEMPO-Oxidized Paper Mulberry Bast Fibers. Polymers (Basel) 2019; 11:polym11030414. [PMID: 30960398 PMCID: PMC6473236 DOI: 10.3390/polym11030414] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 11/17/2022] Open
Abstract
TEMPO oxidation was conducted as a pretreatment to achieve efficient nanofibrillation of long paper mulberry bast fibers (PMBFs). The pH dependency of nanofibrillation efficiency and the characteristics of the resulting cellulose nanofibrils (CNFs) were investigated. As the pH increased, the negative value of the zeta potential of TEMPO-oxidized fibers increased. The increase in electrostatic repulsion at pH values of greater than 9 prevented the entanglement of long PMBFs, which was a drawback for defibrillation at acidic pH. With increasing pH, the CNF production yield was increased. The crystallinity index of TEMPO-oxidized CNFs from PMBFs was 83.5%, which was higher than that of TEMPO-oxidized CNFs from softwood fibers in the same conditions. The tensile strength of nanopaper from TEMPO-oxidized PMBF CNFs was 110.18 MPa, which was approximately 30% higher than that (84.19 MPa) of the TEMPO-oxidized CNFs from softwood fibers.
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24
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Isogai A, Hänninen T, Fujisawa S, Saito T. Review: Catalytic oxidation of cellulose with nitroxyl radicals under aqueous conditions. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.07.007] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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25
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Okahisa Y, Furukawa Y, Ishimoto K, Narita C, Intharapichai K, Ohara H. Comparison of cellulose nanofiber properties produced from different parts of the oil palm tree. Carbohydr Polym 2018; 198:313-319. [DOI: 10.1016/j.carbpol.2018.06.089] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/19/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
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26
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Gao H, Duan B, Lu A, Deng H, Du Y, Shi X, Zhang L. Fabrication of cellulose nanofibers from waste brown algae and their potential application as milk thickeners. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.01.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Chinga-Carrasco G. Potential and Limitations of Nanocelluloses as Components in Biocomposite Inks for Three-Dimensional Bioprinting and for Biomedical Devices. Biomacromolecules 2018; 19:701-711. [DOI: 10.1021/acs.biomac.8b00053] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Gary Chinga-Carrasco
- Lead Scientist−Biocomposites, RISE PFI, Høgskoleringen 6b, 7491 Trondheim, Norway
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28
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Ovalle-Serrano SA, Gómez FN, Blanco-Tirado C, Combariza MY. Isolation and characterization of cellulose nanofibrils from Colombian Fique decortication by-products. Carbohydr Polym 2018; 189:169-177. [PMID: 29580395 DOI: 10.1016/j.carbpol.2018.02.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/19/2018] [Accepted: 02/10/2018] [Indexed: 11/17/2022]
Abstract
Fique fibers are extracted from Furcraea spp. leaves, with 5% average mass yield, using mechanical decortication. Juice, pulp and tow, the by-products of this process, amount 95% of the leaf weight and are considered waste. We extracted cellulose nanofibrils (CNF) from Fique tow, via ultrasound-assisted TEMPO followed by mechanical disintegration with sonication. Fique CNF exhibit diameters around 100 nm, degree of oxidation (DO) of 0.27 and surface charge density (σ) of 1.6 mmol/g. Fique CNF aqueous suspensions show optical birefringence and high colloidal stability due to a high ζ potential (-53 mV). The morphology, chemical structure, crystallinity and phase transitions of Fique CNF were studied using FESEM, IR-ATR, XRD and TGA. We observed that the delignification pretreatment and the TEMPO reaction assisted by ultrasound significantly increase Fique CNF σ and ζ potential, in contrast with the oxidation carried out without ultrasound or with raw (lignified) tow.
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Affiliation(s)
- S A Ovalle-Serrano
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga, 680002, Colombia
| | - F N Gómez
- Escuela de Ingeniería Metalúrgica y Ciencia de Materiales, Universidad Industrial de Santander, Bucaramanga, 680002, Colombia
| | - C Blanco-Tirado
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga, 680002, Colombia
| | - M Y Combariza
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga, 680002, Colombia.
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29
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Preparation and characteristics of TEMPO-oxidized cellulose nanofibrils from bamboo pulp and their oxygen-barrier application in PLA films. Front Chem Sci Eng 2017. [DOI: 10.1007/s11705-017-1673-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Chen YW, Tan TH, Lee HV, Abd Hamid SB. Easy Fabrication of Highly Thermal-Stable Cellulose Nanocrystals Using Cr(NO₃)₃ Catalytic Hydrolysis System: A Feasibility Study from Macro- to Nano-Dimensions. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E42. [PMID: 28772403 PMCID: PMC5344559 DOI: 10.3390/ma10010042] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/24/2016] [Accepted: 12/26/2016] [Indexed: 11/18/2022]
Abstract
This study reported on the feasibility and practicability of Cr(NO₃)₃ hydrolysis to isolate cellulose nanocrystals (CNCCr(NO3)3) from native cellulosic feedstock. The physicochemical properties of CNCCr(NO3)3 were compared with nanocellulose isolated using sulfuric acid hydrolysis (CNCH2SO4). In optimum hydrolysis conditions, 80 °C, 1.5 h, 0.8 M Cr(NO₃)₃ metal salt and solid-liquid ratio of 1:30, the CNCCr(NO3)3 exhibited a network-like long fibrous structure with the aspect ratio of 15.7, while the CNCH2SO4 showed rice-shape structure with an aspect ratio of 3.5. Additionally, Cr(NO₃)₃-treated CNC rendered a higher crystallinity (86.5% ± 0.3%) with high yield (83.6% ± 0.6%) as compared to the H₂SO₄-treated CNC (81.4% ± 0.1% and 54.7% ± 0.3%, respectively). Furthermore, better thermal stability of CNCCr(NO3)3 (344 °C) compared to CNCH2SO4 (273 °C) rendered a high potential for nanocomposite application. This comparable effectiveness of Cr(NO₃)₃ metal salt provides milder hydrolysis conditions for highly selective depolymerization of cellulosic fiber into value-added cellulose nanomaterial, or useful chemicals and fuels in the future.
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Affiliation(s)
- You Wei Chen
- Nanotechnology & Catalysis Research Center (NANOCAT), Institute of Postgraduate Studies, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Thean Heng Tan
- Nanotechnology & Catalysis Research Center (NANOCAT), Institute of Postgraduate Studies, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Hwei Voon Lee
- Nanotechnology & Catalysis Research Center (NANOCAT), Institute of Postgraduate Studies, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Sharifah Bee Abd Hamid
- Nanotechnology & Catalysis Research Center (NANOCAT), Institute of Postgraduate Studies, University of Malaya, Kuala Lumpur 50603, Malaysia.
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31
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Sánchez R, Espinosa E, Domínguez-Robles J, Loaiza JM, Rodríguez A. Isolation and characterization of lignocellulose nanofibers from different wheat straw pulps. Int J Biol Macromol 2016; 92:1025-1033. [DOI: 10.1016/j.ijbiomac.2016.08.019] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/12/2016] [Accepted: 08/08/2016] [Indexed: 11/25/2022]
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32
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Vallejos ME, Felissia FE, Area MC, Ehman NV, Tarrés Q, Mutjé P. Nanofibrillated cellulose (CNF) from eucalyptus sawdust as a dry strength agent of unrefined eucalyptus handsheets. Carbohydr Polym 2016; 139:99-105. [DOI: 10.1016/j.carbpol.2015.12.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/16/2015] [Accepted: 12/01/2015] [Indexed: 10/22/2022]
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