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Frka-Petesic B, Parton TG, Honorato-Rios C, Narkevicius A, Ballu K, Shen Q, Lu Z, Ogawa Y, Haataja JS, Droguet BE, Parker RM, Vignolini S. Structural Color from Cellulose Nanocrystals or Chitin Nanocrystals: Self-Assembly, Optics, and Applications. Chem Rev 2023; 123:12595-12756. [PMID: 38011110 PMCID: PMC10729353 DOI: 10.1021/acs.chemrev.2c00836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Indexed: 11/29/2023]
Abstract
Widespread concerns over the impact of human activity on the environment have resulted in a desire to replace artificial functional materials with naturally derived alternatives. As such, polysaccharides are drawing increasing attention due to offering a renewable, biodegradable, and biocompatible feedstock for functional nanomaterials. In particular, nanocrystals of cellulose and chitin have emerged as versatile and sustainable building blocks for diverse applications, ranging from mechanical reinforcement to structural coloration. Much of this interest arises from the tendency of these colloidally stable nanoparticles to self-organize in water into a lyotropic cholesteric liquid crystal, which can be readily manipulated in terms of its periodicity, structure, and geometry. Importantly, this helicoidal ordering can be retained into the solid-state, offering an accessible route to complex nanostructured films, coatings, and particles. In this review, the process of forming iridescent, structurally colored films from suspensions of cellulose nanocrystals (CNCs) is summarized and the mechanisms underlying the chemical and physical phenomena at each stage in the process explored. Analogy is then drawn with chitin nanocrystals (ChNCs), allowing for key differences to be critically assessed and strategies toward structural coloration to be presented. Importantly, the progress toward translating this technology from academia to industry is summarized, with unresolved scientific and technical questions put forward as challenges to the community.
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Affiliation(s)
- Bruno Frka-Petesic
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- International
Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM), Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Thomas G. Parton
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Camila Honorato-Rios
- Department
of Sustainable and Bio-inspired Materials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Aurimas Narkevicius
- B
CUBE − Center for Molecular Bioengineering, Technische Universität Dresden, 01307 Dresden, Germany
| | - Kevin Ballu
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Qingchen Shen
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Zihao Lu
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Yu Ogawa
- CERMAV-CNRS,
CS40700, 38041 Grenoble cedex 9, France
| | - Johannes S. Haataja
- Department
of Applied Physics, Aalto University School
of Science, P.O. Box
15100, Aalto, Espoo FI-00076, Finland
| | - Benjamin E. Droguet
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Richard M. Parker
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Silvia Vignolini
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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2
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Nano-chitin: Preparation strategies and food biopolymer film reinforcement and applications. Carbohydr Polym 2023; 305:120553. [PMID: 36737217 DOI: 10.1016/j.carbpol.2023.120553] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/02/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
Current trends in food packaging systems are toward biodegradable polymer materials, especially the food biopolymer films made from polysaccharides and proteins, but they are limited by mechanical strength and barrier properties. Nano-chitin has great economic value as a highly efficient functional and reinforcing material. The combination of nano-chitin and food biopolymers offers good opportunities to prepare biodegradable packaging films with enhanced physicochemical and functional properties. This review aims to give the latest advances in nano-chitin preparation strategies and its uses in food biopolymer film reinforcement and applications. The first part systematically introduces various preparation methods for nano-chitin, including chitin nanofibers (ChNFs) and chitin nanocrystals (ChNCs). The nano-chitin reinforced biodegradable films based on food biopolymers, such as polysaccharides and proteins, are described in the second part. The last part provides an overview of the current applications of nano-chitin reinforced food biopolymer films in the food industry.
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3
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Zhou C, Xie Y, Li Y, Li B, Zhang Y, Liu S. Water-in-water emulsion stabilized by cellulose nanocrystals and their high enrichment effect on probiotic bacteria. J Colloid Interface Sci 2023; 633:254-264. [PMID: 36459932 DOI: 10.1016/j.jcis.2022.11.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/16/2022] [Accepted: 11/10/2022] [Indexed: 11/23/2022]
Abstract
HYPOTHESIS The effect of the molecular weight and polymer concentration on the partition behavior of aqueous two-phase systems (ATPs) is significant for constructing water-in-water (W/W) emulsions. Hence, a long-term stable W/W emulsion system might be obtained through selecting the appropriate stabilizer and component phases, which could be a possible carrier for probiotics. EXPERIMENTS Compared with the reported molecular weight difference between polyethylene oxide (PEO) and dextran (DEX) systems, PEO and dextran with lower molecular weight had been used for constructing the water in water (W/W) emulsion system. The W/W emulsions were stabilized using cellulose nanocrystals (CNCs), and the potential application of the W/W emulsion for the encapsulation of Lactobacillus was explored. FINDINGS Emulsion stability exhibited a "dose-effect" relationship with the CNCs concentration and was decreased with the increase of the DEX concentration. The emulsion phase separation rate was increased with increasing ionic strength and temperature. Both Lactobacillus Plantarum and Lactobacillus helveticus were highly inclined to the DEX phase, and the emulsion droplets were deformed and aggregated when the encapsulation amount was increased. This long-term stability would provide a promising approach for designing high-density culture and fermentation of probiotics.
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Affiliation(s)
- Chaoyi Zhou
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yunxiao Xie
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yan Li
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Bin Li
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yangyang Zhang
- Hubei Gedian Humanwell Pharmaceutical Excipients Co., LTD, Wuhan, Hubei 430070, China
| | - Shilin Liu
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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4
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Liu Y, Shi Z, Zou Y, Yu J, Liu L, Fan Y. Comparison of cellulose and chitin nanofibers on Pickering emulsion stability-Investigation of size and surface wettability contribution. Int J Biol Macromol 2023; 235:123754. [PMID: 36812965 DOI: 10.1016/j.ijbiomac.2023.123754] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/01/2023] [Accepted: 02/14/2023] [Indexed: 02/23/2023]
Abstract
There is an increasing concern about developing biobased colloid particles for Pickering stabilization due to the environment-friendliness and health-safety needs. In this study, Pickering emulsions were formed by using TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidized cellulose nanofibers (TOCN) and chitin nanofibers prepared by TEMPO-mediated oxidation (TOChN) or partial deacetylation (DEChN). The physicochemical characterizations of Pickering emulsions demonstrated that the higher cellulose or chitin nanofiber concentrations, surface wettability, and zeta-potential, the higher effectiveness in Pickering stabilization. Specifically, even though DEChN was at a shorter size (with a length of 254 ± 72 nm) as compared to TOCN (with a length of 3050 ± 1832 nm), it showed an excellent stabilization effect on emulsions at the concentration of 0.6 wt% due to its higher affinity to soybean oil (water contact angle of 84.38 ± 0.08°) and large electrostatic repulsion between oil particles. Meanwhile, when the concentration was 0.6 wt%, long TOCN (water contact angle of 43.06 ± 0.08°) formed a three-dimensional network in the aqueous phase, which produced a superstable Pickering emulsion resulting from the limited moving of droplets. These results provided important information on the formulation of Pickering emulsions stabilized by polysaccharide nanofibers with suitable concentration, size and surface wettability.
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Affiliation(s)
- Ying Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Longpan Road 159, Nanjing 210037, Jiangsu, China.
| | - Zicong Shi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Longpan Road 159, Nanjing 210037, Jiangsu, China.
| | - Yujun Zou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Longpan Road 159, Nanjing 210037, Jiangsu, China.
| | - Juan Yu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Longpan Road 159, Nanjing 210037, Jiangsu, China.
| | - Liang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Longpan Road 159, Nanjing 210037, Jiangsu, China.
| | - Yimin Fan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Longpan Road 159, Nanjing 210037, Jiangsu, China.
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5
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Zhang Q, Jiang L, Sui X. Incorporating chitin nanocrystal yields stronger soy protein gel: Insights into linear and nonlinear rheological behaviors by oscillatory shear tests. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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6
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Parajuli S, Hasan MJ, Ureña-Benavides EE. Effect of the Interactions between Oppositely Charged Cellulose Nanocrystals (CNCs) and Chitin Nanocrystals (ChNCs) on the Enhanced Stability of Soybean Oil-in-Water Emulsions. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15196673. [PMID: 36234017 PMCID: PMC9573157 DOI: 10.3390/ma15196673] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/07/2022] [Accepted: 09/22/2022] [Indexed: 05/05/2023]
Abstract
Chitin nanocrystals (ChNCs) and cellulose nanocrystals (CNCs) have been recently used to stabilize emulsions; however, they generally require significant amounts of salt, limiting their applicability in food products. In this study, we developed nanoconjugates by mixing positively charged ChNCs and negatively charged CNCs at various ChNC:CNC mass ratios (2:1, 1:1, and 1:2), and utilized them in stabilizing soybean oil-water Pickering emulsions with minimal use of NaCl salt (20 mM) and nanoparticle (NP) concentrations below 1 wt%. The nanoconjugates stabilized the emulsions better than individual CNC or ChNC in terms of a reduced drop growth and less creaming. Oppositely charged CNC and ChNC neutralized each other when their mass ratio was 1:1, leading to significant flocculation in the absence of salt at pH 6. Raman spectroscopy provided evidence for electrostatic interactions between the ChNCs and CNCs, and generated maps suggesting an assembly of ChNC bundles of micron-scale lengths intercalated by similar-size areas predominantly composed of CNC. The previous measurements, in combination with contact angles on nanoparticle films, suggested that the conjugates preferentially exposed the hydrophobic crystalline planes of CNCs and ChNCs at a 1:1 mass ratio, which was also the best ratio at stabilizing soybean oil-water Pickering emulsions.
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7
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Chitin Nanocrystals Provide Antioxidant Activity to Polylactic Acid Films. Polymers (Basel) 2022; 14:polym14142965. [PMID: 35890741 PMCID: PMC9320242 DOI: 10.3390/polym14142965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 12/10/2022] Open
Abstract
About 1/3rd of produced food goes to waste, and amongst others, advanced packaging concepts need to be developed to prevent this from happening. Here, we target the antioxidative functionality of food packaging to thus address food oxidation without the need for the addition of antioxidants to the food product, which is not desirable from a consumer point of view. Chitin nanocrystals (ChNC) have been shown to be promising bio-fillers for improving the mechanical strength of biodegradable plastics, but their potential as active components in plastic films is rather unexplored. In the current study, we investigate the antioxidant activity of chitin nanocrystals as such and as part of polylactic acid (PLA) films. This investigation was conducted using DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity. Chitin nanocrystals produced via acid hydrolysis showed five times higher activity compared to crude chitin powder. When using these crystals as part of a polylactic acid film (either inside or on top), in both scenarios, antioxidant activity was found, but the effect was considerably greater when the particles were at the surface of the film. This is an important proof of the principle that it is possible to create biodegradable plastics with additional functionality through the addition of ChNC.
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8
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Bai L, Liu L, Esquivel M, Tardy BL, Huan S, Niu X, Liu S, Yang G, Fan Y, Rojas OJ. Nanochitin: Chemistry, Structure, Assembly, and Applications. Chem Rev 2022; 122:11604-11674. [PMID: 35653785 PMCID: PMC9284562 DOI: 10.1021/acs.chemrev.2c00125] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Chitin, a fascinating biopolymer found in living organisms, fulfills current demands of availability, sustainability, biocompatibility, biodegradability, functionality, and renewability. A feature of chitin is its ability to structure into hierarchical assemblies, spanning the nano- and macroscales, imparting toughness and resistance (chemical, biological, among others) to multicomponent materials as well as adding adaptability, tunability, and versatility. Retaining the inherent structural characteristics of chitin and its colloidal features in dispersed media has been central to its use, considering it as a building block for the construction of emerging materials. Top-down chitin designs have been reported and differentiate from the traditional molecular-level, bottom-up synthesis and assembly for material development. Such topics are the focus of this Review, which also covers the origins and biological characteristics of chitin and their influence on the morphological and physical-chemical properties. We discuss recent achievements in the isolation, deconstruction, and fractionation of chitin nanostructures of varying axial aspects (nanofibrils and nanorods) along with methods for their modification and assembly into functional materials. We highlight the role of nanochitin in its native architecture and as a component of materials subjected to multiscale interactions, leading to highly dynamic and functional structures. We introduce the most recent advances in the applications of nanochitin-derived materials and industrialization efforts, following green manufacturing principles. Finally, we offer a critical perspective about the adoption of nanochitin in the context of advanced, sustainable materials.
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Affiliation(s)
- Long Bai
- Key
Laboratory of Bio-based Material Science & Technology (Ministry
of Education), Northeast Forestry University, Harbin 150040, P.R. China
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Liang Liu
- Jiangsu
Co-Innovation Center of Efficient Processing and Utilization of Forest
Resources, Jiangsu Key Lab of Biomass-Based Green Fuel and Chemicals,
College of Chemical Engineering, Nanjing
Forestry University, 159 Longpan Road, Nanjing 210037, P.R. China
| | - Marianelly Esquivel
- Polymer
Research Laboratory, Department of Chemistry, National University of Costa Rica, Heredia 3000, Costa Rica
| | - Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
- Department
of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Siqi Huan
- Key
Laboratory of Bio-based Material Science & Technology (Ministry
of Education), Northeast Forestry University, Harbin 150040, P.R. China
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Xun Niu
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Shouxin Liu
- Key
Laboratory of Bio-based Material Science & Technology (Ministry
of Education), Northeast Forestry University, Harbin 150040, P.R. China
| | - Guihua Yang
- State
Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of
Sciences, Jinan 250353, China
| | - Yimin Fan
- Jiangsu
Co-Innovation Center of Efficient Processing and Utilization of Forest
Resources, Jiangsu Key Lab of Biomass-Based Green Fuel and Chemicals,
College of Chemical Engineering, Nanjing
Forestry University, 159 Longpan Road, Nanjing 210037, P.R. China
| | - Orlando J. Rojas
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
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9
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Zheng Y, Li X, Huang Y, Li H, Chen L, Liu X. Two colorimetric films based on chitin whiskers and sodium alginate/gelatin incorporated with anthocyanins for monitoring food freshness. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107517] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Magnani C, Fazilati M, Kádár R, Idström A, Evenäs L, Raquez JM, Lo Re G. Green Topochemical Esterification Effects on the Supramolecular Structure of Chitin Nanocrystals: Implications for Highly Stable Pickering Emulsions. ACS APPLIED NANO MATERIALS 2022; 5:4731-4743. [PMID: 35492439 PMCID: PMC9039965 DOI: 10.1021/acsanm.1c03708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/21/2022] [Indexed: 05/09/2023]
Abstract
In nature, chitin is organized in hierarchical structures composed of nanoscale building blocks that show outstanding mechanical and optical properties attractive for nanomaterial design. For applications that benefit from a maximized interface such as nanocomposites and Pickering emulsions, individualized chitin nanocrystals (ChNCs) are of interest. However, when extracted in water suspension, their individualization is affected by ChNC self-assembly, requiring a large amount of water (above 90%) for ChNC transport and stock, which limits their widespread use. To master their individualization upon drying and after regeneration, we herein report a waterborne topochemical one-pot acid hydrolysis/Fischer esterification to extract ChNCs from chitin and simultaneously decorate their surface with lactate or butyrate moieties. Controlled reaction conditions were designed to obtain nanocrystals of a comparable aspect ratio of about 30 and a degree of modification of about 30% of the ChNC surface, under the rationale to assess the only effect of the topochemistry on ChNC supramolecular organization. The rheological analysis coupled with polarized light imaging shows how the nematic structuring is hindered by both surface ester moieties. The increased viscosity and elasticity of the modified ChNC colloids indicate a gel-like phase, where typical ChNC clusters of liquid crystalline phases are disrupted. Pickering emulsions have been prepared from lyophilized nanocrystals as a proof of concept. Our results demonstrate that only the emulsions stabilized by the modified ChNCs have excellent stability over time, highlighting that their individualization can be regenerated from the dry state.
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Affiliation(s)
- Chiara Magnani
- Laboratory
of Polymeric and Composite Materials (LPCM), Center of Innovation
and Research in Materials & Polymers (CIRMAP), University of Mons (UMONS), B-7000 Mons, Belgium
- Laboratory
of Proteomics and Microbiology, Research Institute for Biosciences, University of Mons (UMONS), B-7000 Mons, Belgium
| | - Mina Fazilati
- Department
of Industrial and Materials Science IMS, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Roland Kádár
- Department
of Industrial and Materials Science IMS, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
- Wallenberg
Wood Science Center (WWSC), Chalmers University
of Technology, SE-412 96 Gothenburg, Sweden
| | - Alexander Idström
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, SE-412 96 Gothenburg, Sweden
| | - Lars Evenäs
- Wallenberg
Wood Science Center (WWSC), Chalmers University
of Technology, SE-412 96 Gothenburg, Sweden
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, SE-412 96 Gothenburg, Sweden
| | - Jean-Marie Raquez
- Laboratory
of Polymeric and Composite Materials (LPCM), Center of Innovation
and Research in Materials & Polymers (CIRMAP), University of Mons (UMONS), B-7000 Mons, Belgium
| | - Giada Lo Re
- Department
of Industrial and Materials Science IMS, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
- Wallenberg
Wood Science Center (WWSC), Chalmers University
of Technology, SE-412 96 Gothenburg, Sweden
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11
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Liu Y, Yu J, Liu L, Fan Y. Shape-recoverable, piezoresistive, and thermally insulated xerogels based on nanochitin-stabilized Pickering foams. Carbohydr Polym 2022; 278:118934. [PMID: 34973752 DOI: 10.1016/j.carbpol.2021.118934] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 10/31/2021] [Accepted: 11/22/2021] [Indexed: 11/25/2022]
Abstract
Biomass-derived porous materials are promising for various fields and preferred for sustainable development. In this work, shape-recoverable nanochitin-based xerogels with porous structure and excellent mechanical strength, thermal insulation (43.23 ± 0.17 mW/m·k) and piezoresistive properties were prepared by nanochitin-stabilized Pickering foams with chemical crosslinking for the first time through simple air-drying. At the optimized ingredients of nanochitin, surfactant (T80) and crosslinker (glutaraldehyde), the Pickering foams exhibited no significant collapse after one week, and the xerogels prepared thereof achieved a mechanical strength of 0.5-2.7 MPa at 80% strain and considerable structural stability after 100 cycles at 60% strain. Moreover, the resistance of the xerogel had a high linearity in the strain range (0-10%) and could recover to the initial value after 20 cycles. Notably, this is the first time that pure bio-based conductive xerogel has been obtained. These features make nanochitin a promising candidate for biodegradable and sustainable 3D porous materials.
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Affiliation(s)
- Ying Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, Jiangsu, China
| | - Juan Yu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, Jiangsu, China
| | - Liang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, Jiangsu, China.
| | - Yimin Fan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, Jiangsu, China.
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12
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Kumar S, Foroozesh J. Chitin nanocrystals based complex fluids: A green nanotechnology. Carbohydr Polym 2021; 257:117619. [PMID: 33541647 DOI: 10.1016/j.carbpol.2021.117619] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/31/2020] [Accepted: 01/02/2021] [Indexed: 12/31/2022]
Abstract
Chitin biopolymer has received significant attention recently by many industries as a green technology. Nanotechnology has been used to make chitin nanocrystals (ChiNCs) that are rod-shaped natural nanomaterials with nanoscale size. Owing to the unique features such as biodegradability, biocompatibility, renewability, rod-shape, and excellent surface and interfacial, physiochemical, and thermo-mechanical properties; ChiNCs have been green and attractive products with wide applications specifically in medical and pharmaceutical, food and packaging, cosmetic, electrical, and electronic, and also in the oil and gas industry. This review aims to give a comprehensive and applied insight into ChiNCs technology. It starts with reviewing different sources of chitin and their extraction methods followed by the characterization of ChiNCs. Furthermore, a detailed investigation into various complex fluids (dispersions, emulsions, foams, and gels) stabilized by ChiNCs and their characterisation have been thoroughly deliberated. Finally, the current status including ground-breaking applications, untapped investigations, and future prospective have been presented.
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Affiliation(s)
- Sunil Kumar
- Institute of Hydrocarbon Recovery, Universiti Teknologi PETRONAS, Malaysia
| | - Jalal Foroozesh
- Institute of Hydrocarbon Recovery, Universiti Teknologi PETRONAS, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, Malaysia.
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13
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Gu S, Tian Y, Liang K, Ji Y. Chitin nanocrystals assisted 3D printing of polycitrate thermoset bioelastomers. Carbohydr Polym 2021; 256:117549. [PMID: 33483056 DOI: 10.1016/j.carbpol.2020.117549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 12/17/2020] [Accepted: 12/17/2020] [Indexed: 12/30/2022]
Abstract
Citrate-based thermoset bioelastomer has numerous tissue engineering applications. However, its insoluble and unmeltable features restricted processing techniques for fabricating complex scaffolds. Herein, direct ink writing (DIW) was explored for 3D printing of poly(1, 8-octanediol-co-Pluronic F127 citrate) (POFC) bioelastomer scaffolds considering that POFC prepolymer (pre-POFC) was waterborne and could form a stable emulsion. The pre-POFC emulsion couldn't be printed, however, chitin nanocrystal (ChiNC) could be as a rheological modifier to tune the flow behavior of pre-POFC emulsion, and thus DIW printing of POFC scaffolds was successfully realized; moreover, ChiNC was also as a supporting agent to prevent collapse of filaments during thermocuring, and simultaneously as a biobased nanofiller to reinforce scaffolds. The rheological analyses showed the pre-POFC/ChiNC inks fulfilled the requirements for DIW printing. The printed scaffolds exhibited low swelling, and good performances in strength and resilence. Furthermore, the entire process was easily performed and eco-friendly.
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Affiliation(s)
- Shaohua Gu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Yaling Tian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Kai Liang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Yali Ji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
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Almagro I, Cartwright JH, Checa AG, Macías-Sánchez E, Sainz-Díaz CI. Evidence for a liquid-crystal precursor involved in the formation of the crossed-lamellar microstructure of the mollusc shell. Acta Biomater 2021; 120:12-19. [PMID: 32565371 DOI: 10.1016/j.actbio.2020.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/04/2020] [Accepted: 06/10/2020] [Indexed: 01/21/2023]
Abstract
Many biological structures use liquid crystals as self-organizing templates for their formation. We review and analyse evidence that the crossed-lamellar biomineral microstructure of mollusc shells may be formed from such a liquid-crystal precursor. STATEMENT OF SIGNIFICANCE: Many biological structures use liquid crystals as self-organizing templates for their formation. We review and analyse evidence that the crossed-lamellar biomineral microstructure of mollusc shells may be formed from such a liquid-crystal precursor.
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15
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Guan Y. Liquid Foaming Properties. Food Hydrocoll 2021. [DOI: 10.1007/978-981-16-0320-4_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Zhang J, Liu J, Wang Z, Hao S, Song H. Gelation, Liquid Crystalline Behavior, and Ionic Conductivity of Nanocomposite Ionogel Electrolytes Based On Attapulgite Nanorods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9818-9826. [PMID: 32787038 DOI: 10.1021/acs.langmuir.0c01381] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Anisotropic nanoparticles and their dispersions have attracted much attention because of their distinguished characteristics and promising applications. In this study, the novel liquid crystalline nanocomposite ionogel electrolyte materials based on anisotropic nanoparticles of attapulgite (ATP) have been prepared. The gelation, liquid crystalline (LC) behavior, thermal stability, and ionic conductivity were systematically investigated. Rheological, polarized optical microscopy (POM), and small-angle X-ray scattering (SAXS) measurements demonstrated that these liquid crystalline ionogels showed a two-step mechanism consisting of gelation and subsequent reorganization of the gel. Interestingly, the obtained ionogel electrolytes were very stable and LC gel structures were not destroyed even though the temperature was as high as 200 °C. Furthermore, these ionogels possessed outstanding thermal stability and the decomposition temperature exceeded 400 °C. Remarkably, the LC nanocomposite ionogel electrolytes exhibited high room temperature ionic conductivity and the value still exceeded 1.0 × 10-3 S/cm even when the ATP concentration up to 30 wt %. These novel findings are very useful for the fabrication of high temperature resistant electrochemical devices and liquid crystalline nanocomposite materials.
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Affiliation(s)
- Jianxin Zhang
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Jiahang Liu
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Zihao Wang
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Shuai Hao
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Hongzan Song
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
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Liu W, Liu K, Zhu L, Li W, Liu K, Wen W, Liu M, Li H, Zhou C, Luo B. Liquid crystalline and rheological properties of chitin whiskers with different chemical structures and chargeability. Int J Biol Macromol 2020; 157:24-35. [PMID: 32335108 DOI: 10.1016/j.ijbiomac.2020.04.158] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/08/2020] [Accepted: 04/20/2020] [Indexed: 12/22/2022]
Abstract
The liquid crystalline and rheological properties of chitin whiskers (CHWs) are significant for their application in fabrication of highly ordered composite materials and optical components. The aim of this work was to elucidate the influence of chemical structure and chargeability (zeta potential, electropositivity, electronegativity or zwitterionic character) on the liquid crystalline and rheological properties of CHWs. Firstly, CHWs with different chemical structure, including positively charged whiskers (CHWs and CHWs-D/60 min) and negatively charged whiskers (mCHWs), were designed via acid hydrolysis, deacetylation, and maleation, respectively. Subsequently, the chargeability of the above whiskers was further regulated by protonation or deprotonation. The whisker aqueous suspensions with high zeta potential behaved as nematic liquid crystals or chiral nematic liquid crystals, whereas those with low zeta potential had no liquid crystal characteristics. The viscosity, G', and G" values of the CHWs and CHWs-D/60 min aqueous suspensions treated with protonation were lower than those of the corresponding whiskers treated with deprotonation. However, the mCHWs exhibited different changes in their rheological properties under protonation or deprotonation due to the electronegativity and zwitterionic characteristics. In addition, the effects of ionic strength and pH on the liquid crystalline and rheological properties of CHWs, CHWs-D/60 min, and mCHWs aqueous suspensions varied since the chemical structure and chargeability of whiskers differ.
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Affiliation(s)
- Wenjun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Ken Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Ling Zhu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Wenyan Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Kun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Wei Wen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Mingxian Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Hong Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Changren Zhou
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Binghong Luo
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China.
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Bai L, Kämäräinen T, Xiang W, Majoinen J, Seitsonen J, Grande R, Huan S, Liu L, Fan Y, Rojas OJ. Chirality from Cryo-Electron Tomograms of Nanocrystals Obtained by Lateral Disassembly and Surface Etching of Never-Dried Chitin. ACS NANO 2020; 14:6921-6930. [PMID: 32426968 DOI: 10.1021/acsnano.0c01327] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The complex nature of typical colloids and corresponding interparticle interactions pose a challenge in understanding their self-assembly. This specifically applies to biological nanoparticles, such as those obtained from chitin, which typically are hierarchical and multidimensional. In this study, we obtain chitin nanocrystals by one-step heterogeneous acid hydrolysis of never-dried crab residues. Partial deacetylation facilitates control over the balance of electrostatic charges (ζ-potential in the range between +58 and +75 mV) and therefore affords chitin nanocrystals (DE-ChNC) with axial aspect (170-350 nm in length), as determined by cryogenic transmission electron microscopy and atomic force microscopy. We find that the surface amines generated by deacetylation, prior to hydrolysis, play a critical role in the formation of individual chitin nanocrystals by the action of a dual mechanism. We directly access the twisting feature of chitin nanocrystals using electron tomography (ET) and uncover the distinctive morphological differences between chitin nanocrystals extracted from nondeacetylated chitin, ChNC, which are bundled and irregular, and DE-ChNC (single, straight nanocrystals). Whereas chitin nanocrystals obtained from dried chitin precursors are known to be twisted and form chiral nematic liquid crystals, our ET measurements indicate no dominant twisting or handedness for the nanocrystals obtained from the never-dried source. Moreover, no separation into typical isotropic and anisotropic phases occurs after 2 months at rest. Altogether, we highlight the critical role of drying the precursors or the nanopolysaccharides to develop chirality.
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Affiliation(s)
- Long Bai
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Bioproducts Institute, Departments of Chemical & Biological Engineering, Chemistry, and Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
| | - Tero Kämäräinen
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Wenchao Xiang
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Johanna Majoinen
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Jani Seitsonen
- Department of Applied Physics, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Rafael Grande
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Siqi Huan
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Bioproducts Institute, Departments of Chemical & Biological Engineering, Chemistry, and Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
| | - Liang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuel and Chemicals, College of Chemical Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Yimin Fan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuel and Chemicals, College of Chemical Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Bioproducts Institute, Departments of Chemical & Biological Engineering, Chemistry, and Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
- College of Chemical Engineering, Nanjing Forestry University ;159 Longpan Road, Nanjing 210037, China
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19
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Kiliona KPS, Zhou M, Zhu Y, Lan P, Lin N. Preparation and surface modification of crab nanochitin for organogels based on thiol-ene click cross-linking. Int J Biol Macromol 2020; 150:756-764. [PMID: 32061849 DOI: 10.1016/j.ijbiomac.2020.02.125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/04/2020] [Accepted: 02/12/2020] [Indexed: 11/25/2022]
Abstract
Incompatibility of chitin nanomaterials with organic solvents is challenging in the design of the desirable organogels. The long hydrocarbon chains were covalently grafted on the surface of nanochitins, with the attachment of reactive allyl groups and improved dispersion in organic solvents. The reactive thiol groups of poly (ethylene glycol) were introduced into the allyl-nanochitin suspensions to produce the organogels by the thiol-ene click reaction. Attributed to the UV-induced cross-linking between the soft segments of thiolated-PEG and the allyl-nanochitin, the stable organogels with the storage modulus higher than the loss modulus by one order of magnitude were obtained, exhibiting the significant phase transition and mechanical enhancement on the rheological behavior. The combination of crystalline allyl-nanochitin and polymeric chains played a crucial role in the construction of the micro-network, attributing to the stability and mechanical strength of the organogels.
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Affiliation(s)
- Kulang Primo Sokiri Kiliona
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Mengqin Zhou
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Yan Zhu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China
| | - Ping Lan
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530008, Guangxi, PR China
| | - Ning Lin
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China; Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530008, Guangxi, PR China.
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20
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Liu H, Hu Y, Zhu Y, Wu X, Zhou X, Pan H, Chen S, Tian P. A simultaneous grafting/vinyl polymerization process generates a polycationic surface for enhanced antibacterial activity of bacterial cellulose. Int J Biol Macromol 2020; 143:224-234. [DOI: 10.1016/j.ijbiomac.2019.12.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 11/30/2019] [Accepted: 12/05/2019] [Indexed: 12/13/2022]
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21
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Nguyen HL, Ju S, Hao LT, Tran TH, Cha HG, Cha YJ, Park J, Hwang SY, Yoon DK, Hwang DS, Oh DX. The Renewable and Sustainable Conversion of Chitin into a Chiral Nitrogen-Doped Carbon-Sheath Nanofiber for Enantioselective Adsorption. CHEMSUSCHEM 2019; 12:3236-3242. [PMID: 31081284 DOI: 10.1002/cssc.201901176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Indexed: 06/09/2023]
Abstract
Well-known hard-template methods for nitrogen (N)-doped chiral carbon nanomaterials require complicated construction and removal of the template, high-temperature pyrolysis, harsh chemical treatments, and additional N-doping processes. If naturally occurring chiral nematic chitin nanostructures [(C8 H13 NO5 )n ] in exoskeletons were wholly transformed into an N-doped carbon, this would be an efficient and sustainable method to obtain a useful chiral nanomaterial. Here, a simple, sacrificial-template-free, and environmentally mild method was developed to produce an N-doped chiral nematic carbon-sheath nanofibril hydrogel with a surface area >300 m2 g-1 and enantioselective properties from renewable chitin biomass. Calcium-saturated methanol physically exfoliated bulk chitin and produced a chiral nematic nanofibril hydrogel. Hydrothermal treatment of the chiral chitin hydrogel at 190 °C produced an N-doped chiral carbon-sheath nanofibril hydrogel without N-doping. This material preferentially adsorbed d-lactic acid over l-lactic acid and produced 16.3 % enantiomeric excess of l-lactic acid from a racemic mixture.
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Affiliation(s)
- Hoang-Linh Nguyen
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea
| | - Sungbin Ju
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea
| | - Lam Tan Hao
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Thang Hong Tran
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Hyun Gil Cha
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Yoon Jeong Cha
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea
| | - Jeyoung Park
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Sung Yeon Hwang
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Dong Ki Yoon
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea
- Department of Chemistry, KAIST, Daejeon, 305-701, Republic of Korea
| | - Dong Soo Hwang
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea
| | - Dongyeop X Oh
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
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22
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Narkevicius A, Steiner LM, Parker RM, Ogawa Y, Frka-Petesic B, Vignolini S. Controlling the Self-Assembly Behavior of Aqueous Chitin Nanocrystal Suspensions. Biomacromolecules 2019; 20:2830-2838. [PMID: 31244020 DOI: 10.1021/acs.biomac.9b00589] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
As with many other biosourced colloids, chitin nanocrystals (ChNCs) can form liquid crystalline phases with chiral nematic ordering. In this work, we demonstrate that it is possible to finely tune the liquid crystalline behavior of aqueous ChNC suspensions finely. Such control was made possible by carefully studying how the hydrolysis conditions and suspension treatments affect the colloidal and self-assembly properties of ChNCs. Specifically, we systematically investigated the effects of duration and acidity of chitin hydrolysis required to extract ChNCs, as well as the effects of the tip sonication energy input, degree of acetylation, pH and ionic strength. Finally, we show that by controlled water evaporation, it is possible to retain and control the helicoidal ordering in dry films, leading to a hierarchical architecture analogous to that found in nature, e.g. in crab shells. We believe that this work serves as a comprehensive insight into ChNC preparation and handling which is required to unlock the full potential of this material in both a scientific and industrial context.
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Affiliation(s)
- Aurimas Narkevicius
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Lisa M Steiner
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Richard M Parker
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Yu Ogawa
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Bruno Frka-Petesic
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Silvia Vignolini
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
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Enhancing Saltiness Perception Using Chitin Nanomaterials. Polymers (Basel) 2019; 11:polym11040719. [PMID: 31010221 PMCID: PMC6523459 DOI: 10.3390/polym11040719] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/08/2019] [Accepted: 04/16/2019] [Indexed: 12/15/2022] Open
Abstract
In the present study, we prepared and characterized chitin nanomaterials with different diameters, lengths, and degree of deacetylation (DD), and investigated their capability for enhancing saltiness perception. Chitin was isolated from squid pens and transformed into chitin nanofiber (CNF), deacetylated chitin nanofiber (DACNF), and chitin nanocrystal (CNC) by ultrasonication, alkali treatment followed by ultrasonication and acid hydrolysis, respectively. The diameters of CNF, CNC and DACNF were 17.24 nm, 16.05 nm and 15.01 nm while the lengths were 1725.05 nm, 116.91 nm, and 1806.60 nm, respectively. The aspect ratios of CNF and DACNF were much higher than that of CNC. The crystalline indices of CNF and CNC were lower than that of original β-chitin, suggesting that ultrasonication and acid hydrolysis might change the molecular arrangement in crystalline region of chitin. The zeta-potentials were between 19.73 nV and 30.08 mV of chitin nanomaterials in distilled water. Concentrations of chitin nanomaterials (40–74 μg/mL) showed minimal effect on zeta-potential, whereas increasing the level of NaCl reduced the zeta-potential of solution. Moreover, NaCl solution (0.3%) with chitin nanomaterials addition produced significant higher saltiness perception than that of solution with NaCl alone. Therefore, chitin nanomaterials may be promising saltiness enhancers in the food industry.
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Li W, Liu W, Wen W, Liu H, Liu M, Zhou C, Luo B. The liquid crystalline order, rheology and their correlation in chitin whiskers suspensions. Carbohydr Polym 2019; 209:92-100. [DOI: 10.1016/j.carbpol.2019.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 12/19/2018] [Accepted: 01/02/2019] [Indexed: 10/27/2022]
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25
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Sarkar A, Zhang S, Holmes M, Ettelaie R. Colloidal aspects of digestion of Pickering emulsions: Experiments and theoretical models of lipid digestion kinetics. Adv Colloid Interface Sci 2019; 263:195-211. [PMID: 30580767 DOI: 10.1016/j.cis.2018.10.002] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 10/19/2018] [Accepted: 10/19/2018] [Indexed: 11/25/2022]
Abstract
Lipid digestion is a bio-interfacial process that is largely governed by the binding of the lipase-colipase-biosurfactant (bile salts) complex onto the surface of emulsified lipid droplets. Therefore, engineering oil-water interfaces that prevent competitive displacement by bile salts and/or delay the transportation of lipase to the lipidoidal substrate can be an effective strategy to modulate lipolysis in human physiology. In this review, we present the mechanistic role of Pickering emulsions i.e. emulsions stabilised by micron-to-nano sized particles in modulating the important fundamental biological process of lipid digestion by virtue of their distinctive stability against coalescence and resilience to desorption by intestinal biosurfactants. We provide a systematic summary of recent experimental investigations and mathematical models that have blossomed in the last decade in this domain. A strategic examination of the behavior and mechanism of lipid digestion of droplets stabilised by particles in simulated biophysical environments (oral, gastric, intestinal regimes) was conducted. Various particle-laden interfaces were considered, where the particles were derived from synthetic or biological sources. This allowed us to categorize these particles into two classes based on their mechanistic role in modifying lipid digestion. These are 'human enzyme-unresponsive particles' (e.g. silica, cellulose, chitin, flavonoids) i.e. the ones that cannot to be digested by human enzymes, such as amylase, protease and 'human enzyme-responsive particles' (e.g. protein microgels, starch granules), which can be readily digested by humans. We focused on the role of particle shape (spherical, anisotropic) on modifying both interfacial and bulk phases during lipolysis. Also, the techniques currently used to alter the kinetics of lipid digestion using intelligent physical or chemical treatments to control interfacial particle spacing were critically reviewed. A comparison of how various mathematical models reported in literature predict free fatty acid release kinetics during lipid digestion highlighted the importance of the clear statement of the underlying assumptions. We provide details of the initial first order kinetic models to the more recent models, which account for the rate of adsorption of lipase at the droplet surface and include the crucial aspect of interfacial dynamics. We provide a unique decision tree on model selection, which is appropriate to minimize the difference between experimental data of free fatty acid generation and model predictions based on precise assumptions of droplet shrinkage, lipase-binding rate, and nature of lipase transport process to the particle-laden interface. Greater insights into the mechanisms of controlling lipolysis using particle-laden interfaces with appropriate mathematical model fitting permit better understanding of the key lipid digestion processes. Future outlook on interfacial design parameters, such as particle shape, size, polydispersity, charge, fusion, material chemistry, loading and development of new mathematical models that provide closed-loop equations from early to later stages of kinetics are proposed. Such future experiments and models hold promise for the tailoring of particle-laden interfaces for delaying lipid digestion and/or site-dependent controlled release of lipidic active molecules in composite soft matter systems, such as food, personal care, pharmaceutical, healthcare and biotechnological applications.
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26
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Lyotropic liquid crystal self-assembly of H2O2-hydrolyzed chitin nanocrystals. Carbohydr Polym 2018; 196:66-72. [DOI: 10.1016/j.carbpol.2018.04.098] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 03/18/2018] [Accepted: 04/25/2018] [Indexed: 11/19/2022]
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28
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Bogdanova OI, Chvalun SN. Polysaccharide-based natural and synthetic nanocomposites. POLYMER SCIENCE SERIES A 2018. [DOI: 10.1134/s0965545x16050047] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Suenaga S, Osada M. Systematic dynamic viscoelasticity measurements for chitin nanofibers prepared with various concentrations, disintegration times, acidities, and crystalline structures. Int J Biol Macromol 2018; 115:431-437. [PMID: 29673956 DOI: 10.1016/j.ijbiomac.2018.04.082] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/07/2018] [Accepted: 04/15/2018] [Indexed: 11/19/2022]
Abstract
Dynamic viscoelasticities were measured for chitin nanofiber (ChNF) dispersions prepared with various concentrations, disintegration times, acidities, and crystalline structures. The 0.05w/v% dispersions of pH neutral ChNFs continuously exhibited elastic behavior. The 0.05w/v% dispersions of acidified ChNFs, on the other hand, transitioned from a colloidal dispersion to a critical gel and then exhibited elastic behavior with increasing ChNF concentration. A double-logarithmic chart of the concentration vs. the storage modulus was prepared and indicated the fractal dimension and the nanostructure in the dispersion. The results determined that the neutral α- and β-ChNFs were dispersed but showed some remaining aggregations and that the acidified β-ChNFs were completely individualized. In addition, the α-chitin steadily disintegrated with increasing disintegration time, and the aspect ratio of the β-chitin decreased as a result of the exscessive disintegration. The storage moduli of the ChNFs were greater than those of chitin solutions, nanorods, and nanowhiskers with the same solids concentrations.
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Affiliation(s)
- Shin Suenaga
- Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan
| | - Mitsumasa Osada
- Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan.
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30
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Effects of chitosan quaternary ammonium salt on the physicochemical properties of sodium carboxymethyl cellulose-based films. Carbohydr Polym 2018; 184:37-46. [DOI: 10.1016/j.carbpol.2017.12.030] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 11/16/2017] [Accepted: 12/12/2017] [Indexed: 01/06/2023]
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31
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Hedjazi S, Razavi SH. A comparison of Canthaxanthine Pickering emulsions, stabilized with cellulose nanocrystals of different origins. Int J Biol Macromol 2018; 106:489-497. [DOI: 10.1016/j.ijbiomac.2017.08.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 05/25/2017] [Indexed: 01/14/2023]
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32
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The synergistic effect of glycerol and sodium chloride on the degree of chitin nano-whisker gels reinforcement. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4143-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Lin N, Zhao S, Gan L, Chang PR, Xia T, Huang J. Preparation of fungus-derived chitin nanocrystals and their dispersion stability evaluation in aqueous media. Carbohydr Polym 2017; 173:610-618. [PMID: 28732905 DOI: 10.1016/j.carbpol.2017.06.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 05/06/2017] [Accepted: 06/05/2017] [Indexed: 11/29/2022]
Abstract
The chitin nanocrystal is a promising nano-reinforcing agent, but the parasitic pathogens carried on crabs and shrimp shells as main sources limit its application in some fields. In this study, the ChNs which avoided possible safety risks were extracted from mushrooms via protein/mineral-purification and subsequent HCl-hydrolysis. Such fungus-derived ChNs presented an α-chitin crystalline structure with a length of 143±24nm and a diameter of 10±2nm. Since the dispersion stability of ChNs suspension determines their further applications, this present study emphasized the dispersity of ChNs in aqueous media evaluated by the viscosity under steady-shear flow and UV-vis absorption, whose results indicated that ChNs in dispersion would aggregate when the concentration of homogeneous dispersion reached 0.5-0.6wt%. To explore the effect of electrostatic repulsion on interactions between nanoparticles, the maximum energy barriers for parallel and crossed orientations of ChNs in suspension were analyzed using a traditional DLVO theory with additions of NaCl solutions.
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Affiliation(s)
- Ning Lin
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Shasha Zhao
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Lin Gan
- School of Chemistry and Chemical Engineering, Joint International Research Laboratory of Biomass-Based Macromolecular Chemistry and Materials, Southwest University, Chongqing 400715, China
| | - Peter R Chang
- Bioproducts and Bioprocesses National Science Program, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, Saskatchewan S7N 0X2, Canada
| | - Tao Xia
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Jin Huang
- School of Chemistry and Chemical Engineering, Joint International Research Laboratory of Biomass-Based Macromolecular Chemistry and Materials, Southwest University, Chongqing 400715, China; School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China.
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34
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Xu HN, Tang YY, Ouyang XK. Shear-Induced Breakup of Cellulose Nanocrystal Aggregates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:235-242. [PMID: 27936767 DOI: 10.1021/acs.langmuir.6b03807] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The flow properties of two kinds of cellulose nanocrystal (CNC) rods with different aspect ratios and similar zeta potentials in aqueous suspensions have been investigated. The aqueous CNC suspensions undergo a direct transition from dilute solution to colloidal glass instead of phase separation with the increasing CNC concentration. The viscosity profile shows a single shear-thinning behavior over the whole range of shear rates investigated. The shear-thinning behavior becomes stronger with the increasing CNC concentration. The viscosity is much higher for the unsonicated suspension when compared with the sonicated suspensions. The CNC rods appear arrested without alignment with an increasing shear rate from the small-angle light scattering patterns. The arrested glass state results from electric double layers surrounding the CNC rods, which give rise to long-ranged repulsive interactions. For the first time, we demonstrate that, within a narrow range of CNC concentrations, a shear-induced breakup process of the CNC aggregates exists when the shear rate is over a critical value and that the process is reversible in the sense that the aggregates can be reformed. We discuss the competition between the shear-induced breakup and the concentration-driven aggregation based on the experimental observations. The generated aggregate structure during the breakup process is characterized by a fractal dimension of 2.41. Furthermore, we determine two important variables-the breakup rate and the characteristic aggregate size-and derive analytical expressions for their evolution during the breakup process. The model predictions are in quantitative agreement with the experimental results.
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Affiliation(s)
| | | | - Xiao-Kun Ouyang
- School of Food and Pharmacy, Zhejiang Ocean University , Zhoushan 316022, People's Republic of China
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35
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João CF, Echeverria C, Velhinho A, Silva JC, Godinho MH, Borges JP. Bio-inspired production of chitosan/chitin films from liquid crystalline suspensions. Carbohydr Polym 2017; 155:372-381. [DOI: 10.1016/j.carbpol.2016.08.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 08/12/2016] [Indexed: 01/26/2023]
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36
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37
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Tavernier I, Wijaya W, Van der Meeren P, Dewettinck K, Patel AR. Food-grade particles for emulsion stabilization. Trends Food Sci Technol 2016. [DOI: 10.1016/j.tifs.2016.01.023] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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38
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Qiao C, Chen G, Zhang J, Yao J. Structure and rheological properties of cellulose nanocrystals suspension. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.11.005] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Zhao N, Liu Y, Zhao X, Song H. Liquid crystal self-assembly of halloysite nanotubes in ionic liquids: a novel soft nanocomposite ionogel electrolyte with high anisotropic ionic conductivity and thermal stability. NANOSCALE 2016; 8:1545-1554. [PMID: 26681209 DOI: 10.1039/c5nr06888f] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report a novel class of liquid crystalline (LC) nanohybrid ionogels fabricated via self-assembly of natural halloysite nanotubes (HNTs) in ionic liquids (ILs). The obtained ionogels are very stable and nonvolatile and show LC phases over a wide temperature range. Remarkably, the nanocomposite ionogels exhibit high anisotropic ionic conductivity after shear, and their room temperature ionic conductivity can reach 3.8 × 10(-3) S cm(-1) for aligned nanotubes perpendicular to the electrode even when the HNTs content increases to 40 wt%, which is 380 times higher than that obtained for aligned nanotubes parallel to the electrode, which is 1.0 × 10(-5) S cm(-1). Crucially, the obtained LC nanocomposite ionogels have very high thermal stability, which can sustain 400 °C thermal treatment. The findings will promote the development of novel nanocomposite ionogel electrolytes with faster ion transport and larger anisotropic conductivity.
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Affiliation(s)
- Ningning Zhao
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China.
| | - Yulin Liu
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China.
| | - Xiaomeng Zhao
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China.
| | - Hongzan Song
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China.
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40
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Doubly curved nanofiber-reinforced optically transparent composites. Sci Rep 2015; 5:16421. [PMID: 26552990 PMCID: PMC4639763 DOI: 10.1038/srep16421] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 10/12/2015] [Indexed: 11/08/2022] Open
Abstract
Doubly curved nanofiber-reinforced optically transparent composites with low thermal expansion of 15 ppm/k are prepared by hot pressing vacuum-filtered Pickering emulsions of hydrophobic acrylic resin monomer, hydrophilic chitin nanofibers and water. The coalescence of acrylic monomer droplets in the emulsion is prevented by the chitin nanofibers network. This transparent composite has 3D shape moldability, making it attractive for optical precision parts.
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41
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Huang Y, Yao M, Zheng X, Liang X, Su X, Zhang Y, Lu A, Zhang L. Effects of Chitin Whiskers on Physical Properties and Osteoblast Culture of Alginate Based Nanocomposite Hydrogels. Biomacromolecules 2015; 16:3499-507. [PMID: 26393272 DOI: 10.1021/acs.biomac.5b00928] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yao Huang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Mengyu Yao
- Department
of Orthopedics, General Hospital of Guangzhou Military Area Command of Chinese PLA, Guangzhou 510010, China
| | - Xing Zheng
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xichao Liang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Su
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yu Zhang
- Department
of Orthopedics, General Hospital of Guangzhou Military Area Command of Chinese PLA, Guangzhou 510010, China
| | - Ang Lu
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lina Zhang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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42
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Tzoumaki MV, Karefyllakis D, Moschakis T, Biliaderis CG, Scholten E. Aqueous foams stabilized by chitin nanocrystals. SOFT MATTER 2015; 11:6245-53. [PMID: 26154562 DOI: 10.1039/c5sm00720h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The aim of the present study was to explore the potential use of chitin nanocrystals, as colloidal rod-like particles, to stabilize aqueous foams. Chitin nanocrystals (ChN) were prepared by acid hydrolysis of crude chitin and foams were generated mainly by sonicating the respective dispersions. The foamability of the chitin nanocrystals was evaluated and the resulting foams were assessed for their stability, in terms of foam volume reduction and serum release patterns, during storage. Additionally, the samples were studied with light scattering and optical microscopy in order to explore the bubble size distribution and morphology of the foam. Nanocrystal concentration and charge density was varied to alter the packing of the crystals at the interface. At low concentrations of ChNs, foams were stable against coalescence and disproportionation for a period of three hours, whereas at higher concentrations, the foams were stable for several days. The enhanced stability of foams prepared with ChNs, compared to surfactant-stabilized foams, can be mainly attributed to the irreversible adsorption of the ChNs at the air-water interface, thereby providing Pickering stabilization. Both foam volume and stability of the foam were increased with an increase in ChNs concentration, and at pH values around the chitin's pKa (pH 7.0). Under these conditions, the ChNs show minimal electrostatic repulsion and therefore a higher packing of the nanocrystals is promoted. Moreover, decreased electrostatic repulsion enhances network formation between the ChNs in the aqueous films, thereby providing additional stability by gel formation. Overall, ChNs were proven to be effective in stabilizing foams, and may be useful in the design of Pickering-stabilized food grade foams.
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Affiliation(s)
- Maria V Tzoumaki
- Department of Food Science and Technology, Perrotis College, American Farm School, Marinou Antipa 54, P.O. Box 23, 551 02, Thessaloniki, Greece
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43
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Garcia I, Azcune I, Casuso P, Carrasco PM, Grande HJ, Cabañero G, Katsigiannopoulos D, Grana E, Dimos K, Karakassides MA, Odriozola I, Avgeropoulos A. Carbon nanotubes/chitin nanowhiskers aerogel achieved by quaternization-induced gelation. J Appl Polym Sci 2015. [DOI: 10.1002/app.42547] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ignacio Garcia
- Materials Division; IK4-CIDETEC Research Center; Parque Tecnológico de San Sebastián, 20009 Donostia-San Sebastián; Spain
| | - Itxaso Azcune
- Materials Division; IK4-CIDETEC Research Center; Parque Tecnológico de San Sebastián, 20009 Donostia-San Sebastián; Spain
| | - Pablo Casuso
- Materials Division; IK4-CIDETEC Research Center; Parque Tecnológico de San Sebastián, 20009 Donostia-San Sebastián; Spain
| | - Pedro M. Carrasco
- Materials Division; IK4-CIDETEC Research Center; Parque Tecnológico de San Sebastián, 20009 Donostia-San Sebastián; Spain
| | - Hans-J. Grande
- Materials Division; IK4-CIDETEC Research Center; Parque Tecnológico de San Sebastián, 20009 Donostia-San Sebastián; Spain
| | - Germán Cabañero
- Materials Division; IK4-CIDETEC Research Center; Parque Tecnológico de San Sebastián, 20009 Donostia-San Sebastián; Spain
| | - Dimitrios Katsigiannopoulos
- Department of Materials Science Engineering; University of Ioannina, University Campus-Dourouti; Ioannina 45110 Greece
| | - Eftychia Grana
- Department of Materials Science Engineering; University of Ioannina, University Campus-Dourouti; Ioannina 45110 Greece
| | - Konstantinos Dimos
- Department of Materials Science Engineering; University of Ioannina, University Campus-Dourouti; Ioannina 45110 Greece
| | - Michael A. Karakassides
- Department of Materials Science Engineering; University of Ioannina, University Campus-Dourouti; Ioannina 45110 Greece
| | - Ibon Odriozola
- Materials Division; IK4-CIDETEC Research Center; Parque Tecnológico de San Sebastián, 20009 Donostia-San Sebastián; Spain
| | - Apostolos Avgeropoulos
- Department of Materials Science Engineering; University of Ioannina, University Campus-Dourouti; Ioannina 45110 Greece
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44
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Zhang Y, Chen Z, Bian W, Feng L, Wu Z, Wang P, Zeng X, Wu T. Stabilizing oil-in-water emulsions with regenerated chitin nanofibers. Food Chem 2015; 183:115-21. [PMID: 25863618 DOI: 10.1016/j.foodchem.2015.03.030] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 02/16/2015] [Accepted: 03/11/2015] [Indexed: 10/23/2022]
Abstract
Natural chitin is a highly crystalline biopolymer with poor aqueous solubility. Thus direct application of chitin is rather limited unless chemical modifications are made to improve its solubility in aqueous media. Through a simple dissolution and regeneration process, we have successfully prepared chitin nanofibers with diameters around 50nm, which form a stable suspension at concentrations higher than 0.50% and a self-supporting gel at concentrations higher than 1.00%. Additionally, these nanofibers can stabilize oil-in-water emulsions with oil fraction more than 0.50 at chitin usage level of 0.01g/g oil. The droplet sizes of the resulting emulsions decrease with increasing chitin concentrations and decreasing oil fraction. Confocal laser scanning micrographs demonstrate the adsorption of chitin nanofibers on the emulsion droplet surface, which indicates the emulsion stabilization is through a Pickering mechanism. Our findings allow the direct application of chitin in the food industry without chemical modifications.
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Affiliation(s)
- Ying Zhang
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China
| | - Zhigang Chen
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China
| | - Wenyang Bian
- College of Food Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China
| | - Li Feng
- College of Food Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China
| | - Zongwei Wu
- College of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, People's Republic of China
| | - Peng Wang
- College of Food Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China
| | - Tao Wu
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China.
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45
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Abstract
In this paper, we show that biodegradable and biocompatible organogels can be formed with chitin as the filler material and triglycerides as the continuous hydrophobic phase.
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Affiliation(s)
- Constantinos V. Nikiforidis
- Top Institute Food & Nutrition
- 6700AN Wageningen
- The Netherlands
- Physics and Physical Chemistry of Foods
- Wageningen University
| | - Elke Scholten
- Top Institute Food & Nutrition
- 6700AN Wageningen
- The Netherlands
- Physics and Physical Chemistry of Foods
- Wageningen University
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46
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47
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Veen SJ, Kuijk A, Versluis P, Husken H, Velikov KP. Phase transitions in cellulose microfibril dispersions by high-energy mechanical deagglomeration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13362-13368. [PMID: 25314626 DOI: 10.1021/la502790n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
It is shown that dispersions of cellulose microfibrils display gel-sol and direct gel-colloidal liquid crystalline structure transitions. This is achieved by applying high-energy mechanical deagglomeration to bacterial cellulose (BC) networks in the presence of sodium carboxymethyl cellulose (CMC). At high CMC content adsorption of the polymer leads to a significant increase in the ζ potential. The resulting apparent phase diagram shows transitions from aggregates to single microfibril dispersions with increasing the CMC/BC weight ratio at low microfibril concentrations. At higher concentrations, liquid crystalline ordering was observed and the microstructure becomes more homogeneous with increasing the CMC content. The observed liquid crystalline ordering was found to be reminiscent of nematic gels. Applying deagglomeration in the presence of CMC, thus, transitions the system from aggregates and gels to dispersions of single microfibrils and nematic gel-type structures.
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Affiliation(s)
- Sandra J Veen
- Unilever Research Vlaardingen , Olivier van Noortlaan 120, 3133 AT Vlaardingen, Netherlands
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48
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Wen C, Yuan Q, Liang H, Vriesekoop F. Preparation and stabilization of d-limonene Pickering emulsions by cellulose nanocrystals. Carbohydr Polym 2014; 112:695-700. [DOI: 10.1016/j.carbpol.2014.06.051] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 09/15/2013] [Accepted: 06/19/2014] [Indexed: 11/29/2022]
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49
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Perrin E, Bizot H, Cathala B, Capron I. Chitin Nanocrystals for Pickering High Internal Phase Emulsions. Biomacromolecules 2014; 15:3766-71. [DOI: 10.1021/bm5010417] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Emilie Perrin
- UR1268 Biopolymères
Interactions
Assemblages, INRA, F-44316 Nantes, France
| | - Hervé Bizot
- UR1268 Biopolymères
Interactions
Assemblages, INRA, F-44316 Nantes, France
| | - Bernard Cathala
- UR1268 Biopolymères
Interactions
Assemblages, INRA, F-44316 Nantes, France
| | - Isabelle Capron
- UR1268 Biopolymères
Interactions
Assemblages, INRA, F-44316 Nantes, France
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50
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Yuan Y, Sun YE, Wan ZL, Yang XQ, Wu JF, Yin SW, Wang JM, Guo J. Chitin microfibers reinforce soy protein gels cross-linked by transglutaminase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:4434-4442. [PMID: 24766388 DOI: 10.1021/jf500922n] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To improve the gel strength, we attempt to introduce the microcomposite concept into the food gel system. A stable positively charged chitin microfibers (CMFs) suspension was fabricated by a facile microfluidizer approach without changing its chemical structure. The obtained CMFs bearing width of about 0.5-5 μm and length of more than 500 μm were then developed in a transglutaminase cross-linked β-conglycinin (7S) gel. The morphological and rheological characterizations of the 7S-CMF composited gels were done as a function of the protein and CMFs concentrations. Results showed that the presence of the CMFs network improved the gel strength significantly. This effect was CMFs content dependent and was related to the formation of a sponge-like porous microstructure. We inferred that the CMFs provided an initial framework for gel formation and added structural rigidity to the protein gel. The role of protein was to participate in network development as an electrostatic coating and gelation component.
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Affiliation(s)
- Yang Yuan
- Research and Development Center of Food Proteins, College of Light Industry and Food, South China University of Technology , Guangzhou 510640, PR China
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