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Yu S, Peng G, Jiao J, Liu P, Li H, Xi J, Wu D. Chitin nanocrystals-stabilized emulsion as template for fabricating injectable suspension containing polylactide hollow microspheres. Carbohydr Polym 2024; 337:122176. [PMID: 38710562 DOI: 10.1016/j.carbpol.2024.122176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 05/08/2024]
Abstract
One of the promising applications of rod-like chitin nanocrystals (ChNCs) is the use as particle emulsifier to develop Pickering emulsions. We reported a ChNC-stabilized oil-in-water emulsion system, and developed a Pickering emulsion-templated method to prepare polylactide (PLA) hollow microspheres here. The results showed that both non-modified ChNCs and acetylated ChNCs could well emulsify the dichloromethane (DCM) solution of PLA-in-aqueous mannitol solution systems, forming very stable emulsions. At the same oil-to-water ratios and ChNC loadings, the emulsion stability was improved with increasing acetylation levels of ChNCs, accompanied by reduced size of droplets. Through the solvent evaporation, the PLA hollow microspheres were templated successfully, and the surface structure was also strongly dependent on the acetylation level of ChNCs. At a low level of acetylation, the single-hole or multi-hole surface structure formed, which was attributed to the out-diffusion of DCM caused by the solvent extraction and evaporation. These surface defects decreased with increased acetylation levels of ChNCs. Moreover, the aqueous suspension with as-obtained PLA microspheres revealed shear-thinning property and good biocompatibility, thereby had promising application as injectable fillers. This work can provide useful information around tuning surface structures of the Pickering emulsion-templated polymer hollow microspheres by regulating acetylation level of ChNCs.
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Affiliation(s)
- Sumin Yu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Guangni Peng
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Jiali Jiao
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Peng Liu
- Shanghai Isiris Medical Co. Ltd., Shanghai 201400, PR China
| | - Huajun Li
- Medical College, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Juqun Xi
- Medical College, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Defeng Wu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China.
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2
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Carvalho APAD, Értola R, Conte-Junior CA. Nanocellulose-based platforms as a multipurpose carrier for drug and bioactive compounds: From active packaging to transdermal and anticancer applications. Int J Pharm 2024; 652:123851. [PMID: 38272194 DOI: 10.1016/j.ijpharm.2024.123851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/09/2024] [Accepted: 01/22/2024] [Indexed: 01/27/2024]
Abstract
The nanocellulose has unique characteristics, such as biocompatibility, good mechanical strength, and low cytotoxicity. The nanocellulose crystalline portion is responsible for good mechanical resistance, while the amorphous portion is responsible for flexibility. Such features make it a promising candidate for multiple applications related to the modulation of substance release: targeted cancer therapy, transdermal drug delivery, and controlled-release packaging materials. Thus, in this study, we discussed nanocellulose as a multipurpose material for drug delivery and bioactive compound carriers in controlled delivery systems with varied applications in pharmaceutic fields. Herein, we focus on understanding key factors such as i) polymer-drug interactions and surface modification strategies in controlled release rates, ii) therapeutic efficacy, and iii) biocompatibility aspects. The tunable chemistry surface plays a fundamental approach limiting the quick release of active substances in drug delivery systems. Several works on a pre-clinical stage of investigation were overviewed, reporting robust evidence on nanocellulose to design bioactive compounds/drug delivery carriers based on stimuli-responsive drug release and controlled delivery systems for higher efficiency in cancer therapies, purposing target therapy and reduced side effects. Nanocellulose was also identified as a solid candidate material in active packaging for pharmaceutical products. Cellulose nanocrystals and bacterial cellulose demonstrated strong potential to overcome the challenge of controlled release profile and open novel insights in advanced active packaging materials for pharmaceutics with controlled release of antioxidant and antimicrobial substances. Moreover, the concept overview in this work might be extended in active food packaging technologies to flavor-releasing/absorbing systems or antimicrobial/antioxidant carriers for extending the shelf life of foods.
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Affiliation(s)
- Anna Paula Azevedo de Carvalho
- Research Support Group on Nanomaterials, Polymers, and Interaction with Biosystems (BioNano), Department of Biochemistry, Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ 21941909, Brazil; Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ 21941598, Brazil; Nanotechnology Network, Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro (FAPERJ), Rio de Janeiro, RJ 20020-000, Brazil; Graduate Program in Chemistry (PGQu), Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941909, Brazil.
| | - Raphael Értola
- Research Support Group on Nanomaterials, Polymers, and Interaction with Biosystems (BioNano), Department of Biochemistry, Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ 21941909, Brazil; Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ 21941598, Brazil
| | - Carlos Adam Conte-Junior
- Research Support Group on Nanomaterials, Polymers, and Interaction with Biosystems (BioNano), Department of Biochemistry, Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ 21941909, Brazil; Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ 21941598, Brazil; Nanotechnology Network, Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro (FAPERJ), Rio de Janeiro, RJ 20020-000, Brazil; Graduate Program in Chemistry (PGQu), Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941909, Brazil
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3
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Mirzaee N, Nikzad M, Battisti R, Araghi A. Isolation of cellulose nanofibers from rapeseed straw via chlorine-free purification method and its application as reinforcing agent in carboxymethyl cellulose-based films. Int J Biol Macromol 2023; 251:126405. [PMID: 37597636 DOI: 10.1016/j.ijbiomac.2023.126405] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023]
Abstract
In this study, cellulose nanofibers (CNFs) were successfully isolated from rapeseed straw (RS) whose valorization has been rarely investigated to date. A combined bleaching method without chlorine was applied for the purification of cellulose fibers, previously unexplored for RS. Chemical composition analysis and Fourier-transform infrared spectroscopy (FTIR) indicated that the purification method eliminated hemicellulose and reduced lignin content from 24.4 % to 1.8 %. The isolation of CNFs was performed using sulfuric acid hydrolysis under different acid concentrations (55 and 60 % v/v) and hydrolysis times (15, 30, and 45 min). The isolated CNFs were characterized by FTIR, X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The formation of CNFs was confirmed by a significant increase in crystallinity index from 46.45 % of RS to >79.41 % of CNFs, depending on acid concentration and isolation duration. Carboxymethyl cellulose (CMC) films with different contents of CNFs were prepared by casting method. The mechanical properties and cytotoxicity of the prepared films were investigated. The CNFs obtained from RS via a chlorine-free purification method showed promising results for their usage as reinforcement in CMC matrix and film fabrication for various applications such as transdermal medicine and food packaging.
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Affiliation(s)
- Narges Mirzaee
- Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran
| | - Maryam Nikzad
- Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran.
| | - Rodrigo Battisti
- Federal Institute of Education, Science and Technology of Santa Catarina, Criciúma Campus, 88813-600, Brazil
| | - Atefeh Araghi
- Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran
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4
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Olorunnisola D, Olorunnisola CG, Otitoju OB, Okoli CP, Rawel HM, Taubert A, Easun TL, Unuabonah EI. Cellulose-based adsorbents for solid phase extraction and recovery of pharmaceutical residues from water. Carbohydr Polym 2023; 318:121097. [PMID: 37479430 DOI: 10.1016/j.carbpol.2023.121097] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/23/2023] [Accepted: 06/05/2023] [Indexed: 07/23/2023]
Abstract
Cellulose has attracted interest from researchers both in academic and industrial sectors due to its unique structural and physicochemical properties. The ease of surface modification of cellulose by the integration of nanomaterials, magnetic components, metal organic frameworks and polymers has made them a promising adsorbent for solid phase extraction of emerging contaminants, including pharmaceutical residues. This review summarizes, compares, and contrasts different types of cellulose-based adsorbents along with their applications in adsorption, extraction and pre-concentration of pharmaceutical residues in water for subsequent analysis. In addition, a comparison in efficiency of cellulose-based adsorbents and other types of adsorbents that have been used for the extraction of pharmaceuticals in water is presented. From our observation, cellulose-based materials have principally been investigated for the adsorption of pharmaceuticals in water. However, this review aims to shift the focus of researchers to the application of these adsorbents in the effective pre-concentration of pharmaceutical pollutants from water at trace concentrations, for quantification. At the end of the review, the challenges and future perspectives regarding cellulose-based adsorbents are discussed, thus providing an in-depth overview of the current state of the art in cellulose hybrid adsorbents for extraction of pharmaceuticals from water. This is expected to inspire the development of solid phase exraction materials that are efficient, relatively cheap, and prepared in a sustainable way.
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Affiliation(s)
- Damilare Olorunnisola
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, Osun State, Nigeria; Department of Chemical Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria; University of Potsdam, Institute of Nutritional Science, 14558 Nuthetal (Ortsteil Bergholz-Rehbrücke), Arthur-Scheunert-Allee 114-116, Germany; Institute of Chemistry, University of Potsdam, D-14476 Potsdam, Germany
| | - Chidinma G Olorunnisola
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, Osun State, Nigeria; Institute of Chemistry, University of Potsdam, D-14476 Potsdam, Germany
| | - Oluwaferanmi B Otitoju
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, Osun State, Nigeria; Department of Chemical Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria
| | - Chukwunonso P Okoli
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, Osun State, Nigeria; Department of Chemistry, Alex Ekwueme Federal University Ndufu-Alike, Ikwo, Ebonyi State, Nigeria
| | - Harshadrai M Rawel
- University of Potsdam, Institute of Nutritional Science, 14558 Nuthetal (Ortsteil Bergholz-Rehbrücke), Arthur-Scheunert-Allee 114-116, Germany
| | - Andreas Taubert
- Institute of Chemistry, University of Potsdam, D-14476 Potsdam, Germany
| | - Timothy L Easun
- School of Chemistry, Haworth Building, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Emmanuel I Unuabonah
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, Osun State, Nigeria; Department of Chemical Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria.
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5
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Sukmawan R, Kusmono, Wildan MW. Optimizing Acetic Anhydride Amount for Improved Properties of Acetylated Cellulose Nanofibers from Sisal Fibers Using a High-Speed Blender. ACS OMEGA 2023; 8:27117-27126. [PMID: 37593246 PMCID: PMC10431696 DOI: 10.1021/acsomega.3c02178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/11/2023] [Indexed: 08/19/2023]
Abstract
Acetylated cellulose nanofibers (ACNFs) have shown a great potential for strengthening non-polar polymer matrices and better dispersion which can improve composite properties. However, insufficient acetylation may cause inadequate nanofibrillation ACNF during the fibrillation process. The objective of this work was to evaluate the effect of different amounts of acetic anhydride (0, 45, 55, and 65 mL) on the degree of substitution (DS), morphology, crystalline structure, and thermal properties of ACNF obtained from sisal fiber produced using a high-speed blender. The attenuated total reflectance-Fourier transform infrared spectroscopy revealed the success of the acetylation process by the presence of the carbonyl signal around 1724 cm-1. Furthermore, the DS of ACNF was increased with the acetic anhydride amounts. X-ray diffraction analysis revealed that the crystalline structure of ACNF and non-ACNFs were cellulose I, and the crystallinity index of CNF was increased after acetylation treatment. Thermogravimetric analysis showed that the thermal stability of CNF was improved considerably after the acetylation process. The water contact angle of ACNF was higher than that of CNF, indicating that the structural property of CNF altered from hydrophilic to more hydrophobic after acetylation. In addition, the thermal resistance of CNF was improved significantly after acetylation treatment. The optimum amount of acetic anhydride was achieved in 55 mL of acetic anhydride (ACNF-55) which produced ACNF with a DS value of 0.5, a crystallinity index of 77%, a diameter of 87.48 nm, a maximum degradation temperature of 351 °C, and a contact angle of 37.7°. Overall, it was concluded that the obtained ACNF had great potential as reinforcement materials for nanocomposites based on non-polar polymeric matrices.
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Affiliation(s)
- Romi Sukmawan
- Department
of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta 55281, Indonesia
- Department
of Mechanical Technology, Politeknik LPP,
Jalan LPP 1A, Balapan, Yogyakarta 11840, Indonesia
| | - Kusmono
- Department
of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta 55281, Indonesia
| | - Muhammad Waziz Wildan
- Department
of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta 55281, Indonesia
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6
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Li H, Wang Y, Zhao P, Guo L, Huang L, Li X, Gao W. Naturally and chemically acetylated polysaccharides: Structural characteristics, synthesis, activities, and applications in the delivery system: A review. Carbohydr Polym 2023; 313:120746. [PMID: 37182931 DOI: 10.1016/j.carbpol.2023.120746] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/22/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023]
Abstract
Acetylated polysaccharides refer to polysaccharides containing acetyl groups on sugar units. In the past, the acetylation modification of wall polysaccharides has been a hot research topic for scientists. However, in recent years, many studies have reported that acetylation-modified plant, animal, and microbial polysaccharide show great potential in delivery systems. From the latest perspective, this review systematically presents the different sources of naturally acetylated polysaccharides, the regularity of their modification, the chemical preparation of acetylation modifications, the biological activities and functions of acetylated polysaccharides, and the application in the delivery system. In nature, acetylated polysaccharides are extensively distributed in plants, microorganism, and animals. The level of acetylation modification, the distribution of chains, and the locations of acetylation modification sites differ between species. An increasing number of acetylated polysaccharides were prepared in the aqueous medium, which is safe, environment friendly, and low-cost. In addition to being necessary for plant growth and development, acetylated polysaccharides have immunomodulatory, antioxidant, and anticancer properties. The above-mentioned multiple sources, multifunctional and multi-active acetylated polysaccharides, make them an increasingly important part of delivery systems. We conclude by discussing the future directions for research and development and the potential uses for acetylated polysaccharides.
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7
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de Vasconcelos LM, Vasconcelos NF, Lomonaco D, de Freitas Rosa M, Rodriguez-castellon E, Andrade FK, Vieira RS. Microwave-assisted periodate oxidation as a rapid and efficient alternative to oxidize bacterial cellulose wet membrane. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04617-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Minggang Fang, Luo C, Guo X, Sun J, Chen M, Chen W. The Effect of Cellulose Nanocrystals and Acetylated Nanocellulose on the Crystallization Kinetics and Thermal Stability of Polylactic Acid. POLYMER SCIENCE SERIES A 2022. [DOI: 10.1134/s0965545x22700523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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9
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Heise K, Koso T, King AWT, Nypelö T, Penttilä P, Tardy BL, Beaumont M. Spatioselective surface chemistry for the production of functional and chemically anisotropic nanocellulose colloids. JOURNAL OF MATERIALS CHEMISTRY. A 2022; 10:23413-23432. [PMID: 36438677 PMCID: PMC9664451 DOI: 10.1039/d2ta05277f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Maximizing the benefits of nanomaterials from biomass requires unique considerations associated with their native chemical and physical structure. Both cellulose nanofibrils and nanocrystals are extracted from cellulose fibers via a top-down approach and have significantly advanced materials chemistry and set new benchmarks in the last decade. One major challenge has been to prepare defined and selectively modified nanocelluloses, which would, e.g., allow optimal particle interactions and thereby further improve the properties of processed materials. At the molecular and crystallite level, the surface of nanocelluloses offers an alternating chemical structure and functional groups of different reactivity, enabling straightforward avenues towards chemically anisotropic and molecularly patterned nanoparticles via spatioselective chemical modification. In this review, we will explain the influence and role of the multiscale hierarchy of cellulose fibers in chemical modifications, and critically discuss recent advances in selective surface chemistry of nanocelluloses. Finally, we will demonstrate the potential of those chemically anisotropic nanocelluloses in materials science and discuss challenges and opportunities in this field.
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Affiliation(s)
- Katja Heise
- Department of Bioproducts and Biosystems, Aalto University P.O. Box 16300 FI-00076 Aalto Espoo Finland
| | - Tetyana Koso
- Materials Chemistry Division, Chemistry Department, University of Helsinki FI-00560 Helsinki Finland
| | - Alistair W T King
- VTT Technical Research Centre of Finland Ltd., Biomaterial Processing and Products 02044 Espoo Finland
| | - Tiina Nypelö
- Chalmers University of Technology 41296 Gothenburg Sweden
- Wallenberg Wood Science Center, Chalmers University of Technology 41296 Gothenburg Sweden
| | - Paavo Penttilä
- Department of Bioproducts and Biosystems, Aalto University P.O. Box 16300 FI-00076 Aalto Espoo Finland
| | - Blaise L Tardy
- Khalifa University, Department of Chemical Engineering Abu Dhabi United Arab Emirates
- Center for Membrane and Advanced Water Technology, Khalifa University Abu Dhabi United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen, Khalifa University Abu Dhabi United Arab Emirates
| | - Marco Beaumont
- Institute of Chemistry of Renewable Resources, Department of Chemistry, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Str. 24 A-3430 Tulln Austria
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10
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Aoudi B, Boluk Y, Gamal El-Din M. Recent advances and future perspective on nanocellulose-based materials in diverse water treatment applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 843:156903. [PMID: 35753453 DOI: 10.1016/j.scitotenv.2022.156903] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/10/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
Over the past few years, nanocellulose and its derivatives have drawn attention as promising bio-based materials for water treatment applications due to their high surface area, high strength, and renewable, biocompatible nature. The abundance of hydroxyl functional groups on the surfaces of cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) enables a broad range of surface modifications which results in propitious nanocomposites with tunable characteristics. In this context, this review describes the continuously developing applications of nanocellulose-based materials in the areas of adsorption, catalysis, filtration, and flocculation, with a special emphasis on the removal of contaminants such as heavy metals, dyes, and pharmaceutical compounds from diverse water systems. Recent progresses in the diverse forms of application of nanocellulose adsorbents (suspension, hydrogel, aerogel, and membrane) are also highlighted. Finally, challenges and future perspectives on emerging nanocellulose-based materials and their possible industrial applications are presented and discussed.
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Affiliation(s)
- Bouthaina Aoudi
- Department of Civil and Environmental Engineering, University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
| | - Yaman Boluk
- Department of Civil and Environmental Engineering, University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada.
| | - Mohamed Gamal El-Din
- Department of Civil and Environmental Engineering, University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada.
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11
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Recent development, utilization, treatment and performance of solid wastes additives in asphaltic concrete worldwide: A review. JOURNAL OF TRAFFIC AND TRANSPORTATION ENGINEERING (ENGLISH EDITION) 2022. [DOI: 10.1016/j.jtte.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Sathasivam T, Hu L, Sugiarto S, Dou Q, Zhang Z, Tan HR, Leow Y, Zhu Q, Lee CLK, Yu H, Kai D. Facile Fabrication of Lignin-Cellulose Green Nanogels. Chem Asian J 2022; 17:e202200671. [PMID: 36002402 DOI: 10.1002/asia.202200671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/22/2022] [Indexed: 11/10/2022]
Abstract
There has been increasing exploration of the development and production of biodegradable polymers in response to issues with petrol-based polymers and their impact on the environment. Here we report a new approach to synthesize a natural nanogel from lignin and nanocellulose. First lignin nanobeads were synthesized by a solvent-shifting method, which showed a spherical shape with a diameter of 159.7 nm. Then the lignin nanobeads were incorporated into a nanocellulose network to form the lignin/cellulose nanogels. The nanocellulose fibrils (CNF-C) nanogels reveal a higher storage modulus than the nanocellulose crystal (CNC-C) ones due to the denser network with self-entanglement of longer cellulose chains. The presence of lignin nanobeads in the nanogels helped to increase the viscoelasticity of the nanogels. This work highlights that the new kinds of green nanogels could be potentially utilized in a variety of biomedical applications such as drug delivery and wound dressing.
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Affiliation(s)
| | - Lixuan Hu
- Northwestern Polytechnic University, Frontiers Science Center for Flexible Electronics, CHINA
| | - Sigit Sugiarto
- Institute of Materials Research and Engineering, Strategic Research Initiative, SINGAPORE
| | - Qingqing Dou
- Institute of Materials Research and Engineering, Strategic Research Initiative, SINGAPORE
| | - Zheng Zhang
- Institute of Materials Research and Engineering, Structural Materials, SINGAPORE
| | - Hui Ru Tan
- Institute of Materials Research and Engineering, Advanced Characterisation and Instrumentation, SINGAPORE
| | - Yihao Leow
- Institute of Materials Research and Engineering, Strategic Research Initiative, SINGAPORE
| | - Qiang Zhu
- Institute of Materials Research and Engineering, Advanced Characterisation and Instrumentation, SINGAPORE
| | - Chi-Lik Ken Lee
- Nanyang Technological University, Division of Chemistry and Biological Chemistry, SINGAPORE
| | - Haidong Yu
- Northwestern Polytechnic University, Frontiers Science Center for Flexible Electronics, CHINA
| | - Dan Kai
- Institute of Materials Research and Engineering, Advanced Sustainable materials, 2 Fusionopolis Way, Innovis, #08-03, 138634, Singpapore, SINGAPORE
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13
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Syuhada DN, Azura AR. Waste Natural Polymers as Potential Fillers for Biodegradable Latex-Based Composites: A Review. Polymers (Basel) 2021; 13:3600. [PMID: 34685359 PMCID: PMC8541419 DOI: 10.3390/polym13203600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
In recent years, biodegradable composites have become important in various fields because of the increasing awareness of the global environment. Waste natural polymers have received much attention as renewable, biodegradable, non-toxic and low-cost filler in polymer composites. In order to exploit the high potential for residual natural loading in latex composites, different types of surface modification techniques have been applied. This review discusses the preparation and characterization of the modified waste natural fillers for latex-based composites. The potency of the waste natural filler for the latex-based composites was explored with a focus on the mechanical, thermal, biodegradability and filler-latex interaction. This review also offers an update on the possible application of the waste natural filler towards the biodegradability of the latex-based composites for a more sustainable future.
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Affiliation(s)
| | - A. R. Azura
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, Malaysia;
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14
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Yan J, Liu J, Sun Y, Song G, Ding D, Fan G, Chai B, Wang C, Sun L. Investigation on the Preparation of Rice Straw-Derived Cellulose Acetate and Its Spinnability for Electrospinning. Polymers (Basel) 2021; 13:polym13203463. [PMID: 34685223 PMCID: PMC8538335 DOI: 10.3390/polym13203463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 01/31/2023] Open
Abstract
Rice straw-derived cellulose (RSC) with purity of 92 wt.% was successfully extracted from rice straw by a novel and facile strategy, which integrated the C2H5OH/H2O autocatalytic process, dilute alkali treatment and H2O2 bleaching process. Influencing factors of the cellulose extraction were systematically examined, such as ethanol concentration, alkali concentration, H2O2 bleaching process and so on; the optimal extraction conditions of cellulose was determined. A series of rice straw-derived cellulose acetate (RSCA) with different degree of substitution (DS) were prepared by the acetylation reaction; the effects of Ac2O/cellulose ratio, reaction temperature and reaction time on the acetylation reaction were investigated. Results of FTIR and XRD analysis demonstrated that highly purified RSC and RSCA were prepared comparing with the commercial cellulose and cellulose acetate. Solubility analysis of RSCA with different DS indicated as-prepared RSCA with DS of 2.82 possessed the best solubleness, which was suitable for electrospinning. Moreover, the flexible RSCA fibrous membrane was easily fabricated by a facile electrospinning method. Our proposed method provided a strategy for realizing the high-value utilization of waste rice straw resource, as prepared RSC and RSCA can be used as chemical raw material, and electrospun RSCA fibrous membrane has various applications in medical materials, food packaging, water purification and so on.
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Affiliation(s)
- Juntao Yan
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
- Correspondence: (J.Y.); (C.W.); Tel.: +86-27-83940468 (J.Y. & C.W.); Fax: +86-27-83937409 (J.Y. & C.W.)
| | - Jinhong Liu
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Ya Sun
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Guangsen Song
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Deng Ding
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Guozhi Fan
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Bo Chai
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
| | - Chunlei Wang
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China; (J.L.); (Y.S.); (G.S.); (D.D.); (G.F.); (B.C.)
- Correspondence: (J.Y.); (C.W.); Tel.: +86-27-83940468 (J.Y. & C.W.); Fax: +86-27-83937409 (J.Y. & C.W.)
| | - Linbing Sun
- College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;
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Adsorptive Removal of Cd(II) Ions from Wastewater Using Maleic Anhydride Nanocellulose. JOURNAL OF NANOTECHNOLOGY 2021. [DOI: 10.1155/2021/9966811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, both pristine cellulose nanocrystalline (CNC) and maleic anhydride functionalized cellulose nanocrystalline (MA-CNC) were prepared from the stems of Eichhornia crassipes weed by the sulfuric acid hydrolysis method. The as-prepared adsorbents were characterized by using X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and Brunauer–Emmett–Teller (BET) instruments. These materials were applied for the removal of Cd(II) ions from WW. The uptake mechanism was fixed to both Langmuir and Freundlich adsorption isotherms with a maximum Cd(II) ion uptake capability (qmax) of 75.76 and 215.52 mg g−1 by CNC and MA-CNC adsorbents, respectively. Pseudo-second-order (PSO) kinetic model was well fitted to the uptake process. The adsorbent regeneration study was done after desorption of Cd(II) ions from the adsorbent by HCl washing. Results exhibited that the adsorbent was reused for the removal of Cd(II) ions from real WW after successive 13th cycle.
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Daniel AB, Zahir E, Asghar MA. Remediation of Vanadium (V) and Chromium (III) Ions from Aqueous Media by Modified Nanocellulose Obtained from Coconut Coir. J MACROMOL SCI B 2021. [DOI: 10.1080/00222348.2020.1870300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Erum Zahir
- Department of Chemistry, University of Karachi, Karachi, Sindh, Pakistan
| | - Muhammad Asif Asghar
- Food and Feed Safety Laboratory, Food and Marine Resources Research Centre, PCSIR Laboratories Complex, Karachi, Pakistan
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Musarurwa H, Tavengwa NT. Application of carboxymethyl polysaccharides as bio-sorbents for the sequestration of heavy metals in aquatic environments. Carbohydr Polym 2020; 237:116142. [DOI: 10.1016/j.carbpol.2020.116142] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/21/2020] [Accepted: 03/07/2020] [Indexed: 12/16/2022]
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Bio-templated 3D porous graphitic carbon nitride hybrid aerogel with enhanced charge carrier separation for efficient removal of hazardous organic pollutants. J Colloid Interface Sci 2019; 556:366-375. [DOI: 10.1016/j.jcis.2019.08.072] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 08/19/2019] [Accepted: 08/20/2019] [Indexed: 11/20/2022]
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