101
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Synthesis and Characterization of Cellulose Acetate Membranes with Self-Indicating Properties by Changing the Membrane Surface Color for Separation of Gd(III). COATINGS 2020. [DOI: 10.3390/coatings10050468] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This study presents a new, revolutionary, and easy method for evaluating the separation process through a membrane that is based on changing the color of the membrane surface during the separation process. For this purpose, a cellulose acetate membrane surface was modified in several steps: initially with amino propyl triethoxysilane, followed by glutaraldehyde reaction and calmagite immobilization. Calmagite was chosen for its dual role as a molecule that will complex and retain Gd(III) and also as an indicator for Gd(III). At the contact with the membrane surface, calmagite will actively complex and retain Gd(III), and it will change the color of the membrane surface during the complexation process, showing that the separation occurred. The synthesized materials were characterized by Fourier transform infrared spectroscopy (FT-IR), thermal analysis (TGA-DTA), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy, demonstrating the synthesis of membrane material with self-indicating properties. In addition, in the separation of the Gd(III) process, in which a solution of gadolinium nitrate was used as a source and as a moderator in nuclear reactors, the membrane changed its color from blue to pink. The membrane performances were tested by Induced Coupled Plasma–Mass Spectrometry (ICP-MS) analyses showing a separation process efficiency of 86% relative to the initial feed solution.
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102
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Zheng T, Pilla S. Melt Processing of Cellulose Nanocrystal-Filled Composites: Toward Reinforcement and Foam Nucleation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00170] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ting Zheng
- Department of Automotive Engineering, Clemson University, 4 Research Drive, Greenville, South Carolina 29607, United States
- Clemson Composites Center, Clemson University, Greenville, South Carolina 29607, United States
| | - Srikanth Pilla
- Department of Automotive Engineering, Clemson University, 4 Research Drive, Greenville, South Carolina 29607, United States
- Clemson Composites Center, Clemson University, Greenville, South Carolina 29607, United States
- Department of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29602, United States
- Department of Mechanical Engineering, Clemson University, Clemson, South Carolina 29602, United States
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103
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Wang B, Liu J, Chen K, Wang Y, Shao Z. Three‐Dimensional Printing of Methacrylic Grafted Cellulose Nanocrystal‐Reinforced Nanocomposites With Improved Properties. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25336] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Bo Wang
- Beijing Engineering Research Centre of Cellulose and Its DerivativesSchool of Materials Science and Engineering, Beijing Institute of Technology 100081 Beijing People's Republic of China
| | - Jianxin Liu
- Beijing Engineering Research Centre of Cellulose and Its DerivativesSchool of Materials Science and Engineering, Beijing Institute of Technology 100081 Beijing People's Republic of China
| | - Ken Chen
- Beijing Engineering Research Centre of Cellulose and Its DerivativesSchool of Materials Science and Engineering, Beijing Institute of Technology 100081 Beijing People's Republic of China
| | - Yongzhi Wang
- Beijing Engineering Research Centre of Cellulose and Its DerivativesSchool of Materials Science and Engineering, Beijing Institute of Technology 100081 Beijing People's Republic of China
| | - Ziqiang Shao
- Beijing Engineering Research Centre of Cellulose and Its DerivativesSchool of Materials Science and Engineering, Beijing Institute of Technology 100081 Beijing People's Republic of China
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104
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Bacterial cellulose sponges obtained with green cross-linkers for tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110740. [PMID: 32204048 DOI: 10.1016/j.msec.2020.110740] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 12/20/2019] [Accepted: 02/09/2020] [Indexed: 01/31/2023]
Abstract
Three-dimensional (3D) porous structures with controlled pore size and interconnected pores, good mechanical properties and biocompatibility are of great interest for tissue engineering. In this work we propose a new strategy to obtain highly porous 3D structures with improved properties using bacterial cellulose (BC) and eco-friendly additives and processes. Glucose, vanillin and citric acid were used as non-toxic and cheap cross-linkers and γ-aminopropyltriethoxysilane was used to partially replace the surface OH groups of cellulose with amino groups. The efficiency of grafting and cross-linking reactions was confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The morphological investigation of BC sponges revealed a multi-hierarchical organization after functionalization and cross-linking. Micro-computed tomography analysis showed 80-90% open porosity in modified BC sponges. The thermal and mechanical properties of the sponges were influenced by the cross-linker type and concentration. The strength-to-weight ratio of BC sponges cross-linked with glucose and citric acid was 150% and 120% higher compared to that of unmodified BC sponge. In vitro assays revealed that the modified BC sponges are non-cytotoxic and do not trigger an inflammatory response in macrophages. This study provides a simple and green method to obtain highly porous cellulose sponges with hierarchical design, biocompatibility and good mechanical properties.
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105
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Neves RM, Ornaghi HL, Zattera AJ, Amico SC. The influence of silane surface modification on microcrystalline cellulose characteristics. Carbohydr Polym 2020; 230:115595. [DOI: 10.1016/j.carbpol.2019.115595] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/07/2019] [Accepted: 11/09/2019] [Indexed: 11/28/2022]
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106
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Zhang B, Wang Y, Zhang J, Qiao S, Fan Z, Wan J, Chen K. Well-defined 3-Aminopropyltriethoxysilane functionalized magnetite nanoparticles and their adsorption performance for partially hydrolyzed polyacrylamide from aqueous solution. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124288] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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107
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Moeinzadeh R, Jadval Ghadam AG, Lau WJ, Emadzadeh D. Synthesis of nanocomposite membrane incorporated with amino-functionalized nanocrystalline cellulose for refinery wastewater treatment. Carbohydr Polym 2019; 225:115212. [DOI: 10.1016/j.carbpol.2019.115212] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/30/2019] [Accepted: 08/17/2019] [Indexed: 10/26/2022]
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108
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Inukai S, Kurokawa N, Hotta A. Mechanical properties of poly(ε‐caprolactone) composites with electrospun cellulose nanofibers surface modified by 3‐aminopropyltriethoxysilane. J Appl Polym Sci 2019. [DOI: 10.1002/app.48599] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shunya Inukai
- Department of Mechanical EngineeringKeio University Yokohama 223‐8522 Japan
| | - Naruki Kurokawa
- Department of Mechanical EngineeringKeio University Yokohama 223‐8522 Japan
| | - Atsushi Hotta
- Department of Mechanical EngineeringKeio University Yokohama 223‐8522 Japan
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109
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Brief Overview on Bio-Based Adhesives and Sealants. Polymers (Basel) 2019; 11:polym11101685. [PMID: 31618916 PMCID: PMC6836095 DOI: 10.3390/polym11101685] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 11/28/2022] Open
Abstract
Adhesives and sealants (AS) are materials with excellent properties, versatility, and simple curing mechanisms, being widely used in different areas ranging from the construction to the medical sectors. Due to the fast-growing demand for petroleum-based products and the consequent negative environmental impact, there is an increasing need to develop novel and more sustainable sources to obtain raw materials (monomers). This reality is particularly relevant for AS industries, which are generally dependent on non-sustainable fossil raw materials. In this respect, biopolymers, such as cellulose, starch, lignin, or proteins, emerge as important alternatives. Nevertheless, substantial improvements and developments are still required in order to simplify the synthetic routes, as well as to improve the biopolymer stability and performance of these new bio-based AS formulations. This environmentally friendly strategy will hopefully lead to the future partial or even total replacement of non-renewable petroleum-based feedstock. In this brief overview, the general features of typical AS are reviewed and critically discussed regarding their drawbacks and advantages. Moreover, the challenges faced by novel and more ecological alternatives, in particular lignocellulose-based solutions, are highlighted.
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110
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Wang Z, Ding Y, Wang J. Novel Polyvinyl Alcohol (PVA)/Cellulose Nanocrystal (CNC) Supramolecular Composite Hydrogels: Preparation and Application as Soil Conditioners. NANOMATERIALS 2019; 9:nano9101397. [PMID: 31581503 PMCID: PMC6836027 DOI: 10.3390/nano9101397] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 12/18/2022]
Abstract
In this work, cellulose nanocrystal (CNC) was modified by an ureido-pyrimidinone (UPy) system based on quadruple hydrogen bondings, and CNC-UPy was obtained. Then, this powder was added into polyvinyl alcohol (PVA), and PVA/CNC-UPy composite membranes and hydrogels were prepared. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), polarizing optical microscopy (POM) and particle size distribution (PSD) were used to characterize CNC-UPy. From the FTIR results, the characteristic peaks of NCO group sat 2270 cm−1 disappeared, indicating the successful synthesis of CNC-UPy. XRD results showed that the modification by UPy may change the structure of CNC and its degree of crystallinity was increased. PSD analysis showed that the particle size of CNC was increased and its size distribution became narrower after modification by UPy groups. The structure and properties of the composite membranes and hydrogels were studied by differential scanning calorimeter (DSC), thermogravimetric analysis (TGA) together with investigation of swelling, sustained release and self-healing performances. DSC curves depicted that the glass transition temperature, Tg, of different PVA membranes was increased with addition of different proportions of CNC-UPy. TGA data showed that the temperature of maximum weight loss rate was increased, which illustrated the enhanced thermal stability of PVA/CNC-UPy composites. Meanwhile, it was also revealed that the PVA/CNC-UPy composite hydrogels possess good self-healing and better sustained release behavior for the soil conditioner, fulvic acid (FA).
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Affiliation(s)
- Zuo Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Yaoke Ding
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Jincheng Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
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111
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Co-immobilization of multiple enzymes onto surface-functionalized magnetic nanoparticle for the simultaneous hydrolysis of multiple substrates containing industrial wastes. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01125-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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112
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Silylation of TEMPO oxidized nanocellulose from oil palm empty fruit bunch by 3-aminopropyltriethoxysilane. Int J Biol Macromol 2019; 135:106-112. [DOI: 10.1016/j.ijbiomac.2019.05.161] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/22/2019] [Accepted: 05/21/2019] [Indexed: 11/22/2022]
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113
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Isolation and acetylation of cellulose nanostructures with a homogeneous system. Carbohydr Polym 2019; 218:208-217. [DOI: 10.1016/j.carbpol.2019.04.072] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/20/2019] [Accepted: 04/21/2019] [Indexed: 11/20/2022]
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114
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Zhang P, Lu Y, Fan M, Jiang P, Dong Y. Modified cellulose nanocrystals enhancement to mechanical properties and water resistance of vegetable oil‐based waterborne polyurethane. J Appl Polym Sci 2019. [DOI: 10.1002/app.48228] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Pingbo Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Yadong Lu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Mingming Fan
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Pingping Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Yuming Dong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
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115
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Silva MJ, Cena CR, Sanches AO, Mattoso LHC, Malmonge JA. DBSA to improve the compatibility, solubility, and infusibility of cellulose nanowhiskers modified by polyaniline in reinforcing a natural rubber-based nanocomposite. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-018-2556-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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116
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You X, Hu Q, Hu X, Chen H, Yang W, Zhang X. An Effective, Economical and Ultra-Fast Method for Hydrophobic Modification of NCC Using Poly(Methylhydrogen)Siloxane. Polymers (Basel) 2019; 11:polym11060963. [PMID: 31163595 PMCID: PMC6630631 DOI: 10.3390/polym11060963] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/16/2019] [Accepted: 05/17/2019] [Indexed: 11/16/2022] Open
Abstract
Poor compatibility between nanocellulose crystals (NCCs) and major polymers has limited the application of NCC as bio-reinforcements. In this work, an effective and ultra-fast method was investigated to significantly improve the hydrophobicity of NCC by using poly(methylhydrogen)siloxane (PMHS) as modifier. PMHS possessed amounts of reactive -Si-H groups and hydrophobic -CH3 groups. The former groups were reactive with the hydroxyl groups of NCC, while the latter groups afforded NCC very low surface energy. As the weight ratio of PMHS to NCC was only 0.0005%, the hydrophobicity of NCC was significantly improved by increasing the water contact angle of NCC from 0° to 134°. The effect of weight ratio of PMHS to NCC and the hydrogen content of -Si-H in PMHS on the hydrophobicity and thermal stability was investigated in detail by Fourier transform infrared spectroscopy (FTIR), (X-ray Diffraction) XRD and (thermogravimetric analysis) TGA. The results indicated that PMHS chains were covalently grafted onto NCC and PMHS modification improved the thermal stability of NCC.
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Affiliation(s)
- Xueqing You
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Qingjian Hu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Xiaoyong Hu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Hanxian Chen
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Wenbin Yang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Xinxiang Zhang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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117
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Rafieian F, Mousavi M, Yu Q, Jonoobi M. Amine functionalization of microcrystalline cellulose assisted by (3-chloropropyl)triethoxysilane. Int J Biol Macromol 2019; 130:280-287. [DOI: 10.1016/j.ijbiomac.2019.01.108] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 01/11/2019] [Accepted: 01/22/2019] [Indexed: 10/27/2022]
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118
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Karzar Jeddi M, Mahkam M. Magnetic nano carboxymethyl cellulose-alginate/chitosan hydrogel beads as biodegradable devices for controlled drug delivery. Int J Biol Macromol 2019; 135:829-838. [PMID: 31158422 DOI: 10.1016/j.ijbiomac.2019.05.210] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 11/16/2022]
Abstract
For the first time, nano carboxymethyl cellulose (NCMC) was synthesized via cellulose nanocrystal carboxymethylation. This nanomaterial was magnetized and used in bilayer alginate-chitosan hydrogel beads formulation to develop eco-friendly, smart, and magnetic sensitive hydrogel beads for the controlled pH-sensitive release of dexamethasone as a model drug. Water-soluble nanocrystalline cellulose (NCMC) and bilayer hydrogel beads were characterized in terms of size, surface morphology, surface modification, crystallinity, drug loading content, and in vitro drug release profile using various technics. Furthermore, the swelling behavior of hydrogels was examined and reported in three buffer media. The NCMCs improved drug loading capacity and swelling properties and also regulated drug release behavior of hydrogels. The hydrogel beads swelling specification exhibited a higher index in phosphate buffer at pH 5.8 than at pH 1.2 and 7.4. Besides, in vitro release of beads revealed excellent pH-sensitive drug release profiles and prevented release in the gastrointestinal tract. The beads showed high pH sensitivity for dexamethasone drug in pH 5.8 in compared to other pH media. The obtained results could introduce hydrogel beads as a high potential drug delivery system.
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Affiliation(s)
- Mohammad Karzar Jeddi
- Department of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, P.O. Box 53714-161, Tabriz, Iran
| | - Mehrdad Mahkam
- Department of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, P.O. Box 53714-161, Tabriz, Iran.
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119
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Hao Y, Chen Y, Xia H, Gao Q. Surface chemical functionalization of starch nanocrystals modified by 3-aminopropyl triethoxysilane. Int J Biol Macromol 2019; 126:987-993. [DOI: 10.1016/j.ijbiomac.2018.12.200] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/19/2018] [Accepted: 12/21/2018] [Indexed: 11/24/2022]
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120
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Application of surface chemical functionalized cellulose nanocrystals to improve the performance of UF adhesives used in wood based composites - MDF type. Carbohydr Polym 2019; 206:11-20. [DOI: 10.1016/j.carbpol.2018.10.115] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 10/23/2018] [Accepted: 10/30/2018] [Indexed: 11/18/2022]
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121
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Shi G, Qian Y, Tan F, Cai W, Li Y, Cao Y. Controllable synthesis of pomelo peel-based aerogel and its application in adsorption of oil/organic pollutants. ROYAL SOCIETY OPEN SCIENCE 2019; 6:181823. [PMID: 30891289 PMCID: PMC6408386 DOI: 10.1098/rsos.181823] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Oil/water separation is a field of high significance as it might efficiently resolve the contamination of industrial oily wastewater and other oil/water pollution. In this paper, an environmentally-friendly hydrophobic aerogel with high porosity and low density was successfully synthesized with renewable pomelo peels (PPs) as precursors. Typically, a series of sponge aerogels (HPSA-0, HPSA-1 and HPSA-2) were facilely prepared via high-speed dispersion, freeze-drying and silanization with methyltrimethoxysilane. Indeed, the physical properties of aerogel such as density and pore diameter could be tailored by different additives (filter paper fibre and polyvinyl alcohol). Hence, their physico-chemical properties including internal morphology and chemical structure were characterized in detail by Fourier transform infrared, Brunauer-Emmett-Teller, X-ray diffraction, scanning electron microscope, Thermal gravimetric analyzer (TG) etc. Moreover, the adsorption capacity was further determined and the results revealed that the PP-based aerogels presented excellent adsorption performance for a wide range of oil products and/or organic solvents (crude oil 49.8 g g-1, soya bean oil 62.3 g g-1, chloroform 71.3 g g-1 etc.). The corresponding cyclic tests showed the absorption capacity decreased slightly from 94.66% to 93.82% after 10 consecutive cycles, indicating a high recyclability.
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Affiliation(s)
- Guangyu Shi
- School of Light Industry and Chemical Engineering, Dalian polytechnic university, No. 1, Qinggongyuan, Ganjingzi District, Dalian 116034, People's Republic of China
| | - Yizhu Qian
- Dalian No. 24 high school.No. 217, Jiefang Road, Zhongshan District, Dalian 116001, People's Republic of China
| | - Fengzhi Tan
- School of Light Industry and Chemical Engineering, Dalian polytechnic university, No. 1, Qinggongyuan, Ganjingzi District, Dalian 116034, People's Republic of China
| | - Weijie Cai
- School of Light Industry and Chemical Engineering, Dalian polytechnic university, No. 1, Qinggongyuan, Ganjingzi District, Dalian 116034, People's Republic of China
| | - Yuan Li
- School of Light Industry and Chemical Engineering, Dalian polytechnic university, No. 1, Qinggongyuan, Ganjingzi District, Dalian 116034, People's Republic of China
| | - Yafeng Cao
- School of Light Industry and Chemical Engineering, Dalian polytechnic university, No. 1, Qinggongyuan, Ganjingzi District, Dalian 116034, People's Republic of China
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122
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de Lima GF, de Souza AG, Rosa DS. Effect of adsorption of polyethylene glycol (PEG), in aqueous media, to improve cellulose nanostructures stability. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.080] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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123
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New approach for immobilization of 3-aminopropyltrimethoxysilane and TiO 2 nanoparticles into cellulose for BJ1 skin cells proliferation. Carbohydr Polym 2018; 199:193-204. [PMID: 30143120 DOI: 10.1016/j.carbpol.2018.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 06/12/2018] [Accepted: 07/03/2018] [Indexed: 12/23/2022]
Abstract
In the present study, tosylcellulose (TC) was used as a key intermediate for the selective coupling with 3-aminopropyltrimethoxysilane (APTMS) affording amino-propylsilane-grafted tosylcellulose (TC-Si). Solid state 13C NMR and FT-IR analyses confirmed the coupling and self-condensation of APTMS along TC. The changes in the surface morphology of the functionalized cellulose were identified by SEM imaging. The thermal stability of TC-Si was significantly improved as compared to MCC and TC. A new organic/inorganic hybrid cellulosic material was fabricated by embedding TiO2 nanoparticles into TC-Si network. The new cellulose polymers were investigated for their ability to promote the proliferation of human skin fibroblast (BJ1). The cell cytotoxicity assay showed that both TC and TC-Si possessed moderate toxicity to BJ1 cells by 17% and 23.8%, respectively at 20 μM. Meanwhile, TC-Si/TiO2 hybrid enhanced the proliferation of BJ1 by 42%. Additionally TC-Si/TiO2 hybrid demonstrated promising antimicrobial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans.
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124
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Zhou L, He H, Li MC, Huang S, Mei C, Wu Q. Grafting polycaprolactone diol onto cellulose nanocrystals via click chemistry: Enhancing thermal stability and hydrophobic property. Carbohydr Polym 2018; 189:331-341. [DOI: 10.1016/j.carbpol.2018.02.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 12/26/2022]
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125
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126
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Chin KM, Sung Ting S, Ong HL, Omar M. Surface functionalized nanocellulose as a veritable inclusionary material in contemporary bioinspired applications: A review. J Appl Polym Sci 2017. [DOI: 10.1002/app.46065] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kwok-Mern Chin
- School of Bioprocess Engineering; Universiti Malaysia Perlis (UniMAP); Arau Perlis 02600 Malaysia
| | - Sam Sung Ting
- School of Bioprocess Engineering; Universiti Malaysia Perlis (UniMAP); Arau Perlis 02600 Malaysia
| | - Hui Lin Ong
- School of Materials Engineering; Universiti Malaysia Perlis (UniMAP); Arau Perlis 02600 Malaysia
| | - Mf Omar
- School of Materials Engineering; Universiti Malaysia Perlis (UniMAP); Arau Perlis 02600 Malaysia
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