201
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Parker RM, Guidetti G, Williams CA, Zhao T, Narkevicius A, Vignolini S, Frka-Petesic B. The Self-Assembly of Cellulose Nanocrystals: Hierarchical Design of Visual Appearance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704477. [PMID: 29250832 DOI: 10.1002/adma.201704477] [Citation(s) in RCA: 233] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/18/2017] [Indexed: 05/19/2023]
Abstract
By controlling the interaction of biological building blocks at the nanoscale, natural photonic nanostructures have been optimized to produce intense coloration. Inspired by such biological nanostructures, the possibility to design the visual appearance of a material by guiding the hierarchical self-assembly of its constituent components, ideally using natural materials, is an attractive route for rationally designed, sustainable manufacturing. Within the large variety of biological building blocks, cellulose nanocrystals are one of the most promising biosourced materials, primarily for their abundance, biocompatibility, and ability to readily organize into photonic structures. Here, the mechanisms underlying the formation of iridescent, vividly colored materials from colloidal liquid crystal suspensions of cellulose nanocrystals are reviewed and recent advances in structural control over the hierarchical assembly process are reported as a toolbox for the design of sophisticated optical materials.
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Affiliation(s)
- Richard M Parker
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Giulia Guidetti
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Cyan A Williams
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Tianheng Zhao
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Aurimas Narkevicius
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Silvia Vignolini
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Bruno Frka-Petesic
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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202
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Sun Y, Zhong S. Molecularly imprinted polymers fabricated via Pickering emulsions stabilized solely by food-grade casein colloidal nanoparticles for selective protein recognition. Anal Bioanal Chem 2018; 410:3133-3143. [PMID: 29582119 DOI: 10.1007/s00216-018-1006-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/26/2018] [Accepted: 03/06/2018] [Indexed: 11/26/2022]
Abstract
Novel molecularly imprinted polymers (MIPs) based on denatured casein nanoparticle (DCP)-stabilized Pickering emulsions were developed for the first time. Casein, a phosphoprotein, is the main protein in milk. In this work, DCPs were solely used as Pickering-type interfacial emulsifiers for fabrication of MIPs for the selective recognition of proteins for the first time. DCPs were prepared by acidification and heat denaturation (at 80 °C) of casein. Their dispersions have satisfactory colloidal stability over a wide pH range. The DCPs acted as natural, food-grade, and edible interfacial emulsifiers, and adsorbed at the oil-water interface to form Pickering emulsions. After the polymerization of monomers, the template protein was removed by elution. During the elution, the interfacial DCPs were also removed, allowing more imprinted cavities to become exposed. The interfacial imprinting technology causes nearly all the imprinted sites to locate on the surface of the polymeric material. Therefore, the MIPs obtained exhibit fast rebinding and excellent specific recognition ability toward the analytes. Overall, this work provides a promising method for designing and fabricating natural-protein-based structured emulsions to prepare MIPs and thus offers new insight into protein separation and purification. Graphical Abstract Pickering emulsions stabilized by denatured casein particles.
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Affiliation(s)
- Yanhua Sun
- School of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Shian Zhong
- School of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China.
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203
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Niu X, Liu Y, Song Y, Han J, Pan H. Rosin modified cellulose nanofiber as a reinforcing and co-antimicrobial agents in polylactic acid /chitosan composite film for food packaging. Carbohydr Polym 2018; 183:102-109. [DOI: 10.1016/j.carbpol.2017.11.079] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 10/18/2017] [Accepted: 11/22/2017] [Indexed: 01/12/2023]
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204
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Zhang Z, Sèbe G, Wang X, Tam KC. Gold nanoparticles stabilized by poly(4-vinylpyridine) grafted cellulose nanocrystals as efficient and recyclable catalysts. Carbohydr Polym 2018; 182:61-68. [DOI: 10.1016/j.carbpol.2017.10.094] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 10/17/2017] [Accepted: 10/29/2017] [Indexed: 11/15/2022]
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205
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El Achaby M, Kassab Z, Aboulkas A, Gaillard C, Barakat A. Reuse of red algae waste for the production of cellulose nanocrystals and its application in polymer nanocomposites. Int J Biol Macromol 2018; 106:681-691. [DOI: 10.1016/j.ijbiomac.2017.08.067] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 11/15/2022]
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206
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Pinheiro I, Ferreira F, Souza D, Gouveia R, Lona L, Morales A, Mei L. Mechanical, rheological and degradation properties of PBAT nanocomposites reinforced by functionalized cellulose nanocrystals. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.10.026] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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207
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Hu ZH, Omer AM, Ouyang XK, Yu D. Fabrication of carboxylated cellulose nanocrystal/sodium alginate hydrogel beads for adsorption of Pb(II) from aqueous solution. Int J Biol Macromol 2017; 108:149-157. [PMID: 29195799 DOI: 10.1016/j.ijbiomac.2017.11.171] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 11/12/2017] [Accepted: 11/27/2017] [Indexed: 10/18/2022]
Abstract
Carboxylated cellulose nanocrystal-sodium alginate (CCN-Alg) hydrogel beads were easily prepared through a cross-linking method. The structure and properties of the composite beads were characterized by TEM, FTIR, SEM, XPS, thermogravimetric analysis (TGA), and zeta potential measurement. A high ratio of 76% of the Pb(II) ion was adsorbed within the first 2h, and the adsorption equilibrium was nearly reached after 3h. The experimental isotherm could be fitted by the Langmuir model, yielding an extreme adsorption capacity of 338.98mgg-1. The adsorption process followed a pseudo-second-order kinetic model, and thermodynamic analyses confirmed that the adsorption is a spontaneous and endothermic process. Regeneration tests with acid treatment indicated that the CCN-Alg beads performed well in repeated Pb(II) adsorptions, as they could maintain an adsorption capacity of 223.2mgg-1 after five repeated cycles. These results indicate that these CCN-Alg beads are a potentially effective and sustainable adsorbent for application in wastewater treatment.
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Affiliation(s)
- Zhao-Hong Hu
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Ahmed Mohamed Omer
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China; Polymer Materials Research Department, Advanced Technology and New Materials Research Institute, SRTA-City, New Borg El-Arab City, P.O. Box: 21934, Alexandria, Egypt
| | - Xiao-Kun Ouyang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China.
| | - Di Yu
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
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208
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Li M, Li X, Xiao H, James TD. Fluorescence Sensing with Cellulose-Based Materials. ChemistryOpen 2017; 6:685-696. [PMID: 29226055 PMCID: PMC5715359 DOI: 10.1002/open.201700133] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Indexed: 01/31/2023] Open
Abstract
Cellulose-based materials functionalized with fluorescence sensors are highly topical and are employed in many areas of functional materials, including the sensing of heavy-metal ions and anions as well as being widely used as chemical sensors and tools for environmental applications. In this Review, we cover recent progress in the development of cellulose-based fluorescence sensors as parts of membranes and nanoscale materials for the detection of biological analytes. We believe that this Review will be of interest to chemists, chemical engineers, and biochemists in the sensor community as well as researchers working with biological material systems.
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Affiliation(s)
- Meng Li
- Department of Environmental Science and EngineeringNorth China Electric Power University689 Huadian RoadBaoding071003P. R. China
| | - Xiaoning Li
- Department of Environmental Science and EngineeringNorth China Electric Power University689 Huadian RoadBaoding071003P. R. China
| | - Hui‐Ning Xiao
- Department of Environmental Science and EngineeringNorth China Electric Power University689 Huadian RoadBaoding071003P. R. China
- Department of Chemical EngineeringUniversity of New BrunswickFrederictionNBE3B 5A3Canada
| | - Tony D. James
- Department of ChemistryUniversity of BathClaverton DownBathBA2 7AYUK
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209
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Chi K, Catchmark JM. The influences of added polysaccharides on the properties of bacterial crystalline nanocellulose. NANOSCALE 2017; 9:15144-15158. [PMID: 28972619 DOI: 10.1039/c7nr05615j] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Acid hydrolyzed bacterial crystalline nanocellulose (BCNC) with different nanofiber morphologies, geometrical dimensions, crystalline structure and mechanical properties were obtained by adding different polysaccharides into the growing culture medium. Arabinogalactan had little effect on the characteristics of BCNC due to its negligible binding affinity to bacterial cellulose (BC). Bacterial exopolysaccharides were capable of modulating the bundling of cellulose microfibrils during BC formation, resulting in BCNC with bundled nanocrystals, high crystallinity, a less sulfated surface, and improved thermal stability and tensile properties. Xylan/BCNC and xyloglucan/BCNC exhibited the most significant improvements, including an increased length and aspect ratio, a significantly less sulfated surface and superior thermal stability and tensile properties. It is hypothesized that the improvement in CNC characteristics results from a change in amorphous cellulose formation in the native BC. This study also suggests that improved feedstocks for producing CNCs may be obtained by modulating hemicellulose production in plants.
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Affiliation(s)
- Kai Chi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
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210
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Sono-chemical synthesis of cellulose nanocrystals from wood sawdust using Acid hydrolysis. Int J Biol Macromol 2017; 107:1599-1606. [PMID: 28988844 DOI: 10.1016/j.ijbiomac.2017.10.028] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/19/2017] [Accepted: 10/05/2017] [Indexed: 11/20/2022]
Abstract
Cellulose nanocrystal (CNC) is a unique material obtained from naturally occurring cellulose fibers. Owing to their mechanical, optical, chemical, and rheological properties, CNC gained significant interest. Herein, we investigate the potential of commercially non-recyclable wood waste, in particular, sawdust as a new resource for CNC. Isolation of CNC from sawdust was conducted as per acid hydrolysis which induced by ultrasonication technique. Thus, sawdust after being alkali delignified prior sodium chlorite bleaching, was subjected to sulfuric acid with concentration of 65% (w/w) at 60°C for 60min. After complete reaction, CNC were collected by centrifugation followed by dialyzing against water and finally dried via using lyophilization technique. The CNC yield attained values of 15% from purified sawdust. Acid hydrolysis mechanism exactly referred that, the amorphous regions along with thinner as well as shorter crystallites spreaded throughout the cellulose structure are digested by the acid leaving CNC suspension. The latter was freeze-dried to produce CNC powder. A thorough investigation pertaining to nanostructural characteristics of CNC was performed. These characteristics were monitored using TEM, SEM, AFM, XRD and FTIR spectra for following the changes in functionality. Based on the results obtained, the combination of sonication and chemical treatment was great effective in extraction of CNC with the average dimensions (diameter×length) of 35.2±7.4nm×238.7±81.2nm as confirmed from TEM. Whilst, the XRD study confirmed the crystal structure of CNC is obeyed cellulose type I with crystallinity index ∼90%. Cellulose nanocrystals are nominated as the best candidate within the range studied in the area of reinforcement by virtue of their salient textural features.
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211
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Chi K, Catchmark JM. Crystalline nanocellulose/lauric arginate complexes. Carbohydr Polym 2017; 175:320-329. [PMID: 28917872 DOI: 10.1016/j.carbpol.2017.08.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 12/18/2022]
Abstract
As a novel sustainable nanomaterial, crystalline nanocellulose (CNC) possesses many unique characteristics for emerging applications in coatings, emulsions, paints, pharmaceutical formulations, and other aqueous composite systems where interactions with oppositely charged surfactants are commonly employed. Herein, the binding interactions between sulfated CNC and a novel biologically-derived cationic surfactant lauric arginate (LAE) were comprehensively examined. Ionic strength and solution pH are two crucial factors in determining the adsorption of LAE to the CNC surface. Three different driving forces were identified for CNC-LAE binding interactions. Additionally, it was found that the adsorption of LAE to the CNC surface could notably impact the surface potential, aggregation state, hydrophobicity and thermal stability of the CNC. This work provides insights on the binding interactions between oppositely charged CNC and surfactants, and highlights the significance of optimizing the concentration of surfactant required to ionically decorate CNC for its enhanced dispersion and compatibilization in non-polar polymer matrices.
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Affiliation(s)
- Kai Chi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jeffrey M Catchmark
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
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