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Omidian H, Akhzarmehr A, Chowdhury SD. Advancements in Cellulose-Based Superabsorbent Hydrogels: Sustainable Solutions across Industries. Gels 2024; 10:174. [PMID: 38534592 DOI: 10.3390/gels10030174] [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: 01/31/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/28/2024] Open
Abstract
The development of superabsorbent hydrogels is experiencing a transformative era across industries. While traditional synthetic hydrogels have found broad utility, their non-biodegradable nature has raised environmental concerns, driving the search for eco-friendlier alternatives. Cellulose-based superabsorbents, derived from sustainable sources, are gaining prominence. Innovations include biodegradable polymer hydrogels, natural cellulose-chitosan variants, and cassava starch-based alternatives. These materials are reshaping agriculture by enhancing soil fertility and water retention, serving as potent hemostatic agents in medicine, contributing to pollution control, and providing eco-friendly construction materials. Cellulose-based hydrogels also offer promise in drug delivery and hygiene products. Advanced characterization techniques aid in optimizing their properties, while the shift towards circular economy practices further highlights sustainability. This manuscript provides a comprehensive overview of these advancements, highlighting their diverse applications and environmental benefits.
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Affiliation(s)
- Hossein Omidian
- Barry & Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Arnavaz Akhzarmehr
- Barry & Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Sumana Dey Chowdhury
- Barry & Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
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Khanchezar S, Babaeipour V, Mostafa AS. Overproduction of bacterial cellulose from Acetobacter xylinum BPR2001 using food industries wastes. Biotechnol Appl Biochem 2024. [PMID: 38233730 DOI: 10.1002/bab.2560] [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: 07/29/2023] [Accepted: 01/03/2024] [Indexed: 01/19/2024]
Abstract
In this study, a cost-effective complex culture media containing molasses and corn steep liquor (CSL) was developed for the high production of bacterial cellulose (BC) by investigating the effect of four effective factors on BC production at three levels using Taguchi and combined methods. The predicted and actual values of BC production in optimal conditions by Taguchi and combined methods were 8.41 and 14.52 g/L, respectively. These results showed that the combined method was more suitable for predicting the optimal conditions in the optimization of BC production, the cost of developed culture medium was around 94% cost of HS medium preparation, molasses was the most effective factor in both experimental design methods, and initial pH adjustment had little impact on BC production. Then, the effect of inoculation conditions containing three factors of inoculation age, ethanol addition time, and agitation rate on the increase of BC production at three levels was investigated using the response surface methodology with the Box-Behnken design algorithm. Under the optimal conditions including inoculum age of 3 days, ethanol addition time of 10 days, and stirring speed of 100 rpm, the predicted and experimental results of BC production were 21.61 and 20.21 g/L, respectively. This is among the highest ever reported for BC production, which was achieved with a more cost-effective culture medium containing molasses and CSL.
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Affiliation(s)
- Sirwan Khanchezar
- Department of Biotechnology, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Valiolah Babaeipour
- Faculty of Chemistry and Chemical Engineering, Malek Ashtar University of Technology, Tehran, Iran
| | - Atiyeh Sadat Mostafa
- Faculty of Chemistry and Chemical Engineering, Malek Ashtar University of Technology, Tehran, Iran
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Anitasari S, Budi HS, Shen YK, Arina YMD. New Insight of Scaffold Based on Hydroxyapatite (HAp)/Bacteria's Nanocellulose (BN) for Dental Tissue Engineering. Eur J Dent 2023. [PMID: 37995727 DOI: 10.1055/s-0043-1776123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVE Bacterial nanocellulose (BN), derived from Acetobacter xylinum ATCC 237672, is a polymer that offers several desirable characteristics for scaffolds applications. To further enhance the characteristic of the BN scaffold, hydroxyapatite (HAp) from Anadara granosa and Achatina fulica can be incorporated. Therefore, the aim of the study was to characterize the physical properties of a three-dimensional (3D) scaffold made of HAp and BN. MATERIALS AND METHODS The scaffold was developed using the cellulose immersion technique, where BN was soaked in HAp suspension for different duration (5, 10, 15, 20, and 25 hours). The physical properties that were evaluated included porosity, pore density, swelling ratio, and water retention. RESULTS The HAp/BN 3D scaffold, which is considered a hydrogel material, exhibited favorable physical properties that can support cell survival. The total porosity of the scaffolds was 100%. There was no significant difference porosity among the groups (p > 0.05). The swelling ratio increased on day 1 and then sharply decreased on day 2. There was a significant difference between the groups on both day 1 and day 2 (p < 0.05). The scaffolds immersed in the HAp for more than 15 hours exhibited higher water retention compared to the other groups, and there was a significant difference between the groups on day 2 and day 4 (p < 0.05). The scaffold immersed for more than 15 hours exhibited a higher pore density compared to those immersed for less than 15 hours, and there was no a significant difference between the groups (p > 0.05). CONCLUSION Our findings suggest that the HAp/BN 3D scaffold, especially when immersed in HAp for 15 hours, possesses promising physical properties that make it suitable for various applications in dental tissue engineering.
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Affiliation(s)
- Silvia Anitasari
- Department of Dental Material and Devices, Dentistry Program, Faculty of Medicine, Universitas Mulawarman, Samarinda, Indonesia
- Department Medical Microbiology, Medical Program, Faculty of Medicine, Universitas Mulawarman, Samarinda, Indonesia
| | - Hendrik Setia Budi
- Department of Oral Biology, Dental Pharmacology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Yung-Kang Shen
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
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Bai X, Liu Z, Liu P, Zhang Y, Hu L, Su T. An Eco-Friendly Adsorbent Based on Bacterial Cellulose and Vermiculite Composite for Efficient Removal of Methylene Blue and Sulfanilamide. Polymers (Basel) 2023; 15:polym15102342. [PMID: 37242917 DOI: 10.3390/polym15102342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
In this work, a novel composite of bacterial cellulose (BC) and expanded vermiculite (EVMT) composite was used to adsorb dyes and antibiotics. The pure BC and BC/EVMT composite were characterized using SEM, FTIR, XRD, XPS and TGA. The BC/EVMT composite exhibited a microporous structure, providing abundant adsorption sites for target pollutants. The adsorption performance of the BC/EVMT composite was investigated for the removal of methylene blue (MB) and sulfanilamide (SA) from an aqueous solution. The adsorption capacity of BC/ENVMT for MB increased with increasing pH, while the adsorption capacity for SA decreased with increasing pH. The equilibrium data were analyzed using the Langmuir and Freundlich isotherms. As a result, the adsorption of MB and SA by the BC/EVMT composite was found to follow the Langmuir isotherm well, indicating a monolayer adsorption process on a homogeneous surface. The maximum adsorption capacity of the BC/EVMT composite was found to be 92.16 mg/g for MB and 71.53 mg/g for SA, respectively. The adsorption kinetics of both MB and SA on the BC/EVMT composite showed significant characteristics of a pseudo-second-order model. Considering the low cost and high efficiency of BC/EVMT, it is expected to be a promising adsorbent for the removal of dyes and antibiotics from wastewater. Thus, it can serve as a valuable tool in sewage treatment to improve water quality and reduce environmental pollution.
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Affiliation(s)
- Xiuzhi Bai
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Zhongxiang Liu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Pengfei Liu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Yijun Zhang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Linfeng Hu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
- Experiment and Test Center, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Tongchao Su
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
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Guimarães DT, de Oliveira Barros M, de Araújo E Silva R, Silva SMF, de Almeida JS, de Freitas Rosa M, Gonçalves LRB, Brígida AIS. Superabsorbent bacterial cellulose film produced from industrial residue of cashew apple juice processing. Int J Biol Macromol 2023; 242:124405. [PMID: 37100327 DOI: 10.1016/j.ijbiomac.2023.124405] [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: 01/30/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 04/28/2023]
Abstract
The industrial residue of cashew apple juice processing (MRC) was evaluated as an alternative medium for bacterial cellulose (BC) production by Komagataeibacter xylinus ATCC 53582 and Komagataeibacter xylinus ARS B42. The synthetic Hestrin-Schramm medium (MHS) was used as a control for growing and BC production. First, BC production was assessed after 4, 6, 8, 10, and 12 days under static culture. After 12 days of cultivation, K. xylinus ATCC 53582 produced the highest BC titer in MHS (3.1 g·L-1) and MRC (3 g·L-1), while significant productivity was attained at 6 days of fermentation. To understand the effect of culture medium and fermentation time on the properties of the obtained films, BC produced at 4, 6, or 8 days were submitted to infrared spectroscopy with Fourier transform, thermogravimetry, mechanical tests, water absorption capacity, scanning electron microscopy, degree of polymerization and X-ray diffraction. The properties of BC synthesized in MRC were identical to those of BC from MHS, according to structural, physical, and thermal studies. MRC, on the other hand, allows the production of BC with a high water absorption capacity when compared to MHS. Despite the lower titer (0.88 g·L-1) achieved in MRC, the BC from K. xylinus ARS B42 presented a high thermal resistance and a remarkable absorption capacity (14664 %), suggesting that it might be used as a superabsorbent biomaterial.
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Affiliation(s)
- Darlyson Tavares Guimarães
- Rede Nordeste de Biotecnologia, Universidade Federal do Ceará, Campus do Pici, Fortaleza, CE CEP 60455-760, Brazil
| | - Matheus de Oliveira Barros
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, bloco 709, Fortaleza, CE CEP 60455-760, Brazil
| | - Renata de Araújo E Silva
- Universidade Estadual do Ceará, Departamento de Ciência e Tecnologia, Av. Dr. Silas Munguba, 1700, Bairro Itaperi, Fortaleza, CE CEP 60714-903, Brazil
| | - Sarah Maria Frota Silva
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, bloco 709, Fortaleza, CE CEP 60455-760, Brazil
| | - Jessica Silva de Almeida
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, bloco 709, Fortaleza, CE CEP 60455-760, Brazil
| | - Morsyleide de Freitas Rosa
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2.270, Bairro Planalto do Pici, Fortaleza, CE CEP 60511-110, Brazil
| | - Luciana Rocha Barros Gonçalves
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, bloco 709, Fortaleza, CE CEP 60455-760, Brazil
| | - Ana Iraidy Santa Brígida
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, 2.270, Bairro Planalto do Pici, Fortaleza, CE CEP 60511-110, Brazil.
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Raut MP, Asare E, Syed Mohamed SMD, Amadi EN, Roy I. Bacterial Cellulose-Based Blends and Composites: Versatile Biomaterials for Tissue Engineering Applications. Int J Mol Sci 2023; 24:986. [PMID: 36674505 PMCID: PMC9865793 DOI: 10.3390/ijms24020986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 01/06/2023] Open
Abstract
Cellulose of bacterial origin, known as bacterial cellulose (BC), is one of the most versatile biomaterials that has a huge potential in tissue engineering due to its favourable mechanical properties, high hydrophilicity, crystallinity, and purity. Additional properties such as porous nano-fibrillar 3D structure and a high degree of polymerisation of BC mimic the properties of the native extracellular matrix (ECM), making it an excellent material for the fabrication of composite scaffolds suitable for cell growth and tissue development. Recently, the fabrication of BC-based scaffolds, including composites and blends with nanomaterials, and other biocompatible polymers has received particular attention owing to their desirable properties for tissue engineering. These have proven to be promising advanced materials in hard and soft tissue engineering. This review presents the latest state-of-the-art modified/functionalised BC-based composites and blends as advanced materials in tissue engineering. Their applicability as an ideal biomaterial in targeted tissue repair including bone, cartilage, vascular, skin, nerve, and cardiac tissue has been discussed. Additionally, this review briefly summarises the latest updates on the production strategies and characterisation of BC and its composites and blends. Finally, the challenges in the future development and the direction of future research are also discussed.
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Affiliation(s)
| | | | | | | | - Ipsita Roy
- Department of Materials Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield S3 7HQ, UK
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Zhang Z, Abidi N, Lucia L, Chabi S, Denny CT, Parajuli P, Rumi SS. Cellulose/nanocellulose superabsorbent hydrogels as a sustainable platform for materials applications: A mini-review and perspective. Carbohydr Polym 2023; 299:120140. [PMID: 36876763 DOI: 10.1016/j.carbpol.2022.120140] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 10/14/2022]
Abstract
Superabsorbent hydrogels (SAH) are crosslinked three-dimensional networks distinguished by their super capacity to stabilize a large quantity of water without dissolving. Such behavior enables them to engage in various applications. Cellulose and its derived nanocellulose can become SAHs as an appealing, versatile, and sustainable platform because of abundance, biodegradability, and renewability compared to petroleum-based materials. In this review, a synthetic strategy that reflects starting cellulosic resources to their associated synthons, crosslinking types, and synthetic controlling factors was highlighted. Representative examples of cellulose and nanocellulose SAH and an in-depth discussion of structure-absorption relationships were listed. Finally, various applications of cellulose and nanocellulose SAH, challenges and existing problems, and proposed future research pathways were listed.
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Affiliation(s)
- Zhen Zhang
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA; Department of Mechanical Engineering, The University of New Mexico, Albuquerque, NM, USA; Department of Forest Biomaterials, NC State University, Raleigh, NC, USA.
| | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA.
| | - Lucian Lucia
- Department of Forest Biomaterials, NC State University, Raleigh, NC, USA; Department of Chemistry, NC State University, Raleigh, NC, USA; Joint Department of Biomedical Engineering, NC State University and University of North Carolina at Chapel Hill, Raleigh, NC, USA.
| | - Sakineh Chabi
- Department of Mechanical Engineering, The University of New Mexico, Albuquerque, NM, USA
| | - Christian T Denny
- Department of Chemical and Biological Engineering, The University of New Mexico, Albuquerque, NM, USA
| | - Prakash Parajuli
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA
| | - Shaida Sultana Rumi
- Fiber and Biopolymer Research Institute, Department of Soil and Plant Science, Texas Tech University, Lubbock, TX, USA
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Ismaeilimoghadam S, Jonoobi M, Hamzeh Y, Danti S. Effect of Nanocellulose Types on Microporous Acrylic Acid/Sodium Alginate Super Absorbent Polymers. J Funct Biomater 2022; 13:jfb13040273. [PMID: 36547534 PMCID: PMC9784917 DOI: 10.3390/jfb13040273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to investigate the effect of different types of nanocellulose, i.e., cellulose nanocrystal (CNC), cellulose nanofiber (CNF) and bacterial nanocellulose (BNC), and also different drying methods (oven-drying and freeze-drying) on the properties of acrylic acid (AA)/sodium alginate (SA) super absorbent polymers (SAPs). In addition, the presence of ammonium per sulfate as an initiator and N-N methylene-bis-acrylamide as a cross-linker were considered. Synthesized SAPs were characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The absorption and rheological properties (i.e., storage modulus and loss modulus) were also investigated. The results of FTIR spectroscopy demonstrated several types of interactions, such as hydrogen and esterification, between SA, AA and nanocellulose. SEM analysis revealed a microporous structure in the SAPs. All SAPs had a centrifuge retention capacity (CRC)/free swelling capacity (FSC) ≥ 69%. The absorption behavior showed that the oven-dried SAPs had superior (about 2×) CRC and FRC in different aqueous media compared to the freeze-dried counterparts. The freeze-dried SAPs showed increased rheological properties in comparison to the oven-dried ones, with SAPs containing BNC and CNC having the highest rheological properties, respectively. Overall, it can be concluded that oven-dried SAPs containing CNC had better absorption properties than the other ones tested in this study.
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Affiliation(s)
- Saeed Ismaeilimoghadam
- Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj 77871-31587, Iran
- Pisa Research Unit (UdR), Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy
| | - Mehdi Jonoobi
- Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj 77871-31587, Iran
- Correspondence: (M.J.); (S.D.)
| | - Yahya Hamzeh
- Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj 77871-31587, Iran
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
- Correspondence: (M.J.); (S.D.)
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9
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Low cost production of bacterial cellulose through statistical optimization and developing its composites for multipurpose applications. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Liu Y, Zhu Y, Wang Y, Mu B, Wang X, Wang A. Eco-friendly superabsorbent composites based on calcined semicoke and polydimethylourea phosphate: Synthesis, swelling behavior, degradability and their impact on cabbage growth. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ismaeilimoghadam S, Sheikh M, Taheri P, Maleki S, Resalati H, Jonoobi M, Azimi B, Danti S. Manufacturing of Fluff Pulp Using Different Pulp Sources and Bentonite on an Industrial Scale for Absorbent Hygienic Products. Molecules 2022; 27:molecules27155022. [PMID: 35956974 PMCID: PMC9370493 DOI: 10.3390/molecules27155022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/31/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, for the first time, a composite fluff pulp was produced based on the combination of softwood (i.e., long-length fiber), hardwood (i.e., short-length fiber), non-wooden pulps (i.e., bagasse) and bentonite, with specific amounts to be used in hygienic pads (e.g., baby diapers and sanitary napkins). After the defibration process, the manufactured fluff pulp was placed as an absorbent mass in diapers and sanitary napkins. Therefore, tests related to the fluff pulp, such as grammage, thickness, density, ash content, humidity percentage, pH and brightness, tests related to the manufactured baby diapers, such as absorption capacity, retention rate, retention capacity, absorption time and rewet, and tests related to the sanitary napkin, such as absorption capacity and rewet, were performed according to the related standards. The results demonstrated that increasing the amount of bagasse pulp led to increasing the ash content, pH and density of fluff pulp and decreasing the brightness. The addition of bentonite as a filler also increased ash content and pH of fluff pulp. The results also demonstrated that increasing of bagasse pulp up to 30% in combination with softwood pulp led to increasing absorption capacity, retention rate, retention capacity, absorption time and rewet of baby diapers and of sanitary napkins.
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Affiliation(s)
- Saeed Ismaeilimoghadam
- Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj 77871-31587, Iran
- Marinasun Company, Eshtehard 31881-16881, Iran
- Correspondence: (S.I.); (S.D.)
| | | | | | - Sadegh Maleki
- Marinasun Company, Eshtehard 31881-16881, Iran
- Department of Wood and Paper Sciences, Faculty of Natural Resources, Tarbiat Modares University, Nour 46414-356, Iran
| | - Hossien Resalati
- Department of Wood and Paper Science and Technology, Agricultural and Natural Resources University of Sari, Sari 48181-66996, Iran
| | - Mehdi Jonoobi
- Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj 77871-31587, Iran
| | - Bahareh Azimi
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
- Correspondence: (S.I.); (S.D.)
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Fabrication of carboxymethyl cellulose and chitosan modified Magnetic alkaline Ca-bentonite for the adsorption of hazardous doxycycline. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125730] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Synthesis, characterization, and swelling behaviors of sodium carboxymethyl cellulose-g-poly(acrylic acid)/semi-coke superabsorbent. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03545-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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G R, C R R, Nair SV, Menon D. Superabsorbent sodium carboxymethyl cellulose membranes based on a new cross-linker combination for female sanitary napkin applications. Carbohydr Polym 2020; 248:116763. [PMID: 32919559 DOI: 10.1016/j.carbpol.2020.116763] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 07/10/2020] [Accepted: 07/10/2020] [Indexed: 01/19/2023]
Abstract
The main intent of this investigation was to retain the strength and superabsorbency of natural and non-toxic biodegradable polymers using an innovative combination of cross-linkers for application as the absorbent core of sanitary napkins. For this, sodium carboxymethyl cellulose (NaCMC) and starch were blend to form membranes by phase inversion and lyophilisation, using an optimized cross-linker combination of sodium trimetaphosphate (STMP) and aluminium sulphate (AlS). Optimal cross-linking of NaCMC and starch hampered membrane dissolution and disintegration, yielding a microtextured surface morphology. The membranes were biodegradable and yet possessed the requisite flexibility and mechanical strength for the proposed application, without compromise of superabsorbency. Lyophilised membranes possessed higher immediate water and blood sorption with ∼50% water retention capabilities when compared to the phase inversion technology. The results suggest that the developed membranes can be a cost-effective degradable alternative to the commercial polyacrylate-based nonbiodegradable sanitary products.
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Affiliation(s)
- Reshma G
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India
| | - Reshmi C R
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India
| | - Shantikumar V Nair
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India
| | - Deepthy Menon
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India.
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15
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Wang X, Zheng Y, Zhang C, Zong L. Preparation and swelling properties of hydrolysis-resistant superabsorbent composite based on acrylic acid and sodium bentonite. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2020. [DOI: 10.1080/1023666x.2020.1783939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Xiangpeng Wang
- College of Chemical Engineering, Sheng Li College China University of Petroleum, Dongying, China
| | - Yunxiang Zheng
- College of Chemical Engineering, Sheng Li College China University of Petroleum, Dongying, China
| | - Chunxiao Zhang
- College of Chemical Engineering, Sheng Li College China University of Petroleum, Dongying, China
| | - Lina Zong
- College of Chemical Engineering, Sheng Li College China University of Petroleum, Dongying, China
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Raghavendran V, Asare E, Roy I. Bacterial cellulose: Biosynthesis, production, and applications. Adv Microb Physiol 2020; 77:89-138. [PMID: 34756212 DOI: 10.1016/bs.ampbs.2020.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Bacterial cellulose (BC) is a natural polymer produced by the acetic acid producing bacterium and has gathered much interest over the last decade for its biomedical and biotechnological applications. Unlike the plant derived cellulose nanofibres, which require pretreatment to deconstruct the recalcitrant lignocellulosic network, BC are 100% pure, and are extruded by cells as nanofibrils. Moreover, these nanofibrils can be converted to macrofibers that possess excellent material properties, surpassing even the strength of steel, and can be used as substitutes for fossil fuel derived synthetic fibers. The focus of the review is to present the fundamental long-term research on the influence of environmental factors on the organism's BC production capabilities, the production methods that are available for scaling up/scaled-up processes, and its use as a bulk commodity or for biomedical applications.
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Affiliation(s)
- Vijayendran Raghavendran
- Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom
| | - Emmanuel Asare
- Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom
| | - Ipsita Roy
- Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom.
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17
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Zhao C, Zhang M, Liu Z, Guo Y, Zhang Q. Salt-Tolerant Superabsorbent Polymer with High Capacity of Water-Nutrient Retention Derived from Sulfamic Acid-Modified Starch. ACS OMEGA 2019; 4:5923-5930. [PMID: 31459741 PMCID: PMC6648645 DOI: 10.1021/acsomega.9b00486] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 03/18/2019] [Indexed: 05/04/2023]
Abstract
The application of superabsorbent polymers (SAPs) is hindered because their absorption capability is greatly affected by the electrolytes in a solution. A novel modified water-absorbent polymer was fabricated by solution polymerization of sulfamic acid-modified starch and acrylic acid; the swelling ratios of this absorbent polymer were 1026 g/g in deionized water and 145 g/g in 0.9% sodium chloride solution and increased by 99.5 and 13.4%, respectively, when compared with ordinary starch-grafted acrylic SAPs. The water absorption capacity was measured in water at different pH values, salt concentrations, and temperatures. In addition, water and fertilizer retentions were studied by simulated leaching tests in a soil column. The results showed that water absorption capacities of the modified SAP in salt solutions were improved due to the adsorption and transfer of water molecules by the sulfonic acid groups. Compared to the losses when there was no superabsorbent treatment, the water, nitrate, ammonium nitrogen, and water-soluble potassium losses during the salt-tolerant superabsorbent treatment were significantly reduced by 18.5, 22.8, 88.0, and 63.8%, respectively. The method introduced in this study could guide the development and wide application of salt-tolerant SAPs in agriculture and horticulture.
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Affiliation(s)
- Chenhao Zhao
- National
Engineering Laboratory for Efficient Utilization of Soil and Fertilizer
Resources, College of Resources and Environment, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Min Zhang
- National
Engineering Laboratory for Efficient Utilization of Soil and Fertilizer
Resources, College of Resources and Environment, Shandong Agricultural University, Tai’an, Shandong 271018, China
- Kingenta
Ecological Engineering Group Co., Ltd., Linshu, Shandong 276700, China
- E-mail: . Phone/Fax: +86-538-8241531 (M.Z.)
| | - Zhiguang Liu
- National
Engineering Laboratory for Efficient Utilization of Soil and Fertilizer
Resources, College of Resources and Environment, Shandong Agricultural University, Tai’an, Shandong 271018, China
- E-mail: (Z.L.)
| | - Yanle Guo
- National
Engineering Laboratory for Efficient Utilization of Soil and Fertilizer
Resources, College of Resources and Environment, Shandong Agricultural University, Tai’an, Shandong 271018, China
| | - Qiang Zhang
- Kingenta
Ecological Engineering Group Co., Ltd., Linshu, Shandong 276700, China
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18
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Zhu W, Zhang Y, Wang P, Yang Z, Yasin A, Zhang L. Preparation and Applications of Salt-Resistant Superabsorbent Poly (Acrylic Acid-Acrylamide/Fly Ash) Composite. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E596. [PMID: 30781533 PMCID: PMC6416650 DOI: 10.3390/ma12040596] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/12/2019] [Accepted: 02/13/2019] [Indexed: 01/14/2023]
Abstract
Solution polymerization synthesized alt-resistant superabsorbent poly (acrylic acid-acrylamide/fly ash) composites. The mass ratio of acrylic acid (AA) to acrylamide (AM), the concentration of crosslinker, the neutralization degree (ND) of AA, and the polymerization temperature were investigated by single-factor method. Optimized conditions for the synthesis of poly (acrylic acid-acrylamide/fly ash) (PAA-AM/FA) are, as following: m (AA)/m (AM) is 1.5, the content of crosslinker N, N-methylenebisacrylamide. (MBA) is 0.7%, neutralization degree of AA is 70%, polymerization temperature is 70 °C, and fly ash (FA) content is 50%. The prepared PAA-AM/FA demonstrated superior water absorption performance. The absorption capacities of PAA-AM/FA for pure water and 0.9% NaCl solution were found to be 976 g·g-1 and 81 g·g-1, respectively. Furthermore, PAA-AM/FA was found to have excellent adsorption capacity (148 mg·g-1) for Rhodamine B in water. Fourier Transform-Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA), and Scanning Electron Microscopy (SEM) characterized the prepared materials. Results showed that fly ash was incorporated into the macromolecular polymer matrix and played a key role in improving the performance of the polymer composites.
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Affiliation(s)
- Wenjuan Zhu
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
- Department of chemical and environmental engineering, Xinjiang Institute of Engineering, Urumqi 830026, China.
| | - Yagang Zhang
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
- Department of chemical and environmental engineering, Xinjiang Institute of Engineering, Urumqi 830026, China.
| | - Penglei Wang
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Zhiyong Yang
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
- Department of chemical and environmental engineering, Xinjiang Institute of Engineering, Urumqi 830026, China.
| | - Akram Yasin
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
| | - Letao Zhang
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
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