1
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Jung S, Kim J, Bang J, Jung M, Park S, Yun H, Kwak HW. pH-sensitive cellulose/chitin nanofibrillar hydrogel for dye pollutant removal. Carbohydr Polym 2023; 317:121090. [PMID: 37364959 DOI: 10.1016/j.carbpol.2023.121090] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023]
Abstract
In this study, a pH-sensitive smart hydrogel was successfully prepared by combining a polyelectrolyte complex using biopolymeric nanofibrils. By adding a green citric acid cross-linking agent to the formed chitin and cellulose-derived nanofibrillar polyelectrolytic complex, a hydrogel with excellent structural stability could be prepared even in a water environment, and all processes were conducted in an aqueous system. The prepared biopolymeric nanofibrillar hydrogel not only enables rapid conversion of swelling degree and surface charge according to pH but can also effectively remove ionic contaminants. The ionic dye removal capacity was 372.0 mg/g for anionic AO and 140.5 mg/g for cationic MB. The surface charge conversion ability according to pH could be easily applied to the desorption of the removed contaminants, and as a result, it showed an excellent contaminant removal efficiency of 95.1 % or more even in the repeated reuse process 5 times. Overall, the eco-friendly biopolymeric nanofibrillar pH-sensitive hydrogel shows potential for complex wastewater treatment and long-term use.
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Affiliation(s)
- Seungoh Jung
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jungkyu Kim
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Junsik Bang
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Minjung Jung
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sangwoo Park
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Heecheol Yun
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyo Won Kwak
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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2
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Korotcenkov G, Simonenko NP, Simonenko EP, Sysoev VV, Brinzari V. Paper-Based Humidity Sensors as Promising Flexible Devices, State of the Art, Part 2: Humidity-Sensor Performances. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13081381. [PMID: 37110966 PMCID: PMC10144639 DOI: 10.3390/nano13081381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 05/27/2023]
Abstract
This review article covers all types of paper-based humidity sensor, such as capacitive, resistive, impedance, fiber-optic, mass-sensitive, microwave, and RFID (radio-frequency identification) humidity sensors. The parameters of these sensors and the materials involved in their research and development, such as carbon nanotubes, graphene, semiconductors, and polymers, are comprehensively detailed, with a special focus on the advantages/disadvantages from an application perspective. Numerous technological/design approaches to the optimization of the performances of the sensors are considered, along with some non-conventional approaches. The review ends with a detailed analysis of the current problems encountered in the development of paper-based humidity sensors, supported by some solutions.
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Affiliation(s)
- Ghenadii Korotcenkov
- Department of Physics and Engineering, Moldova State University, MD-2009 Chisinau, Moldova;
| | - Nikolay P. Simonenko
- Kurnakov Institute of General and Inorganic Chemistry, The Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, Russia; (N.P.S.); (E.P.S.)
| | - Elizaveta P. Simonenko
- Kurnakov Institute of General and Inorganic Chemistry, The Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, Russia; (N.P.S.); (E.P.S.)
| | - Victor V. Sysoev
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, Russia;
| | - Vladimir Brinzari
- Department of Physics and Engineering, Moldova State University, MD-2009 Chisinau, Moldova;
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3
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Simultaneous/direct chemomechanical densification and downsizing of weak paulownia wood to produce a strong, unidirectional, all-wooden nanocomposite. Polym J 2023. [DOI: 10.1038/s41428-023-00766-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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4
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Wang X, Zeng J, Zhu J. Morphological and rheological properties of cellulose nanofibrils prepared by post-fibrillation endoglucanase treatment. Carbohydr Polym 2022; 295:119885. [DOI: 10.1016/j.carbpol.2022.119885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 02/08/2023]
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5
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Chen C, Xi P, Zhang S, Zhang L, Sun Y, Yao J, Fang K, Jiang Y. Nanocellulose with unique character converted directly from plants without intensive mechanical disintegration. Carbohydr Polym 2022; 293:119730. [DOI: 10.1016/j.carbpol.2022.119730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 11/02/2022]
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6
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Tailored production of lignin-containing cellulose nanofibrils from sugarcane bagasse pretreated by acid-catalyzed alcohol solutions. Carbohydr Polym 2022; 291:119602. [DOI: 10.1016/j.carbpol.2022.119602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/19/2022] [Accepted: 05/06/2022] [Indexed: 11/21/2022]
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7
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Ghalehno MD, Yousefi H. Green nanocomposite made from carboxymethyl cellulose reinforced with four types of cellulose nanomaterials of wheat straw. J Appl Polym Sci 2022. [DOI: 10.1002/app.52802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Hossein Yousefi
- Laboratory of Sustainable Nanomaterials, Department of Wood Engineering and Technology Gorgan University of Agricultural Sciences and Natural Resources Gorgan Iran
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8
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Preparation of cellulose-based chromatographic medium for biological separation: A review. J Chromatogr A 2022; 1677:463297. [PMID: 35809519 DOI: 10.1016/j.chroma.2022.463297] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 11/22/2022]
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9
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Cellulose nanofibrils (CNFs) in uniform diameter: Capturing the impact of carboxyl group on dispersion and Re-dispersion of CNFs suspensions. Int J Biol Macromol 2022; 207:23-30. [DOI: 10.1016/j.ijbiomac.2022.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 12/24/2022]
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10
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Jannatamani H, Motamedzadegan A, Farsi M, Yousefi H. Rheological properties of wood/bacterial cellulose and chitin nano-hydrogels as a function of concentration and their nano-films properties. IET Nanobiotechnol 2022; 16:158-169. [PMID: 35377555 PMCID: PMC9114446 DOI: 10.1049/nbt2.12083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 11/19/2022] Open
Abstract
In this study, rheological properties of the Wood Cellulose NanoFibers (WCNF), Bacterial Cellulose NanoFibers (BCNF), and Chitin NanoFibers (ChNF) as well as physical properties of films prepared from each nano‐hydrogel were investigated. Each nano‐hydrogel was prepared in 2 concentrations of 0.5 and 1 wt% for rheological study. Rheological properties were measured using a rotational rheometer. The flow behaviour data were fitted with rheological models. Apparent viscosity was higher in higher concentrations of nano‐hydrogels. Herschel‐Bulkley model was the best model for flow behaviour data fitting. BCNF nano‐hydrogels had the highest hysteresis loop while WCNF nano‐hydrogels had the best structure recovery and lowest hysteresis loop. At LVE (Linear Viscoelastic Region), G′ (storage modulus) and G″ (loss modulus) had a constant value, but as strain increased their values decreased. Storage modulus was found to be greater than loss modulus in all samples during frequency sweep test. BCNF nano‐hydrogel showed the lowest frequency dependency. Chitin nanofilms had the highest elongation and stress value.
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Affiliation(s)
- Hesamoddin Jannatamani
- Department of Food Science and Technology Management, Islamic Azad University Sari Branch, Sari, Iran
| | - Ali Motamedzadegan
- Department of Food Science and Technology, Sari Agricultural Sciences and Natural Resources University, Moji, Iran
| | - Mohammad Farsi
- Department of Food Science and Technology Management, Islamic Azad University Sari Branch, Sari, Iran
| | - Hossein Yousefi
- Laboratory of Sustainable Nanomaterials, Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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11
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Ebadi Z, Ghaisari H, Tajeddin B, Shekarforoush SS. Production and evaluation of the chemical and mechanical properties of nanocellulose and nanowood starch-based biodegradable films potential candidates for moisture absorbers for food packaging. Food Sci Nutr 2021; 9:2227-2233. [PMID: 33841838 PMCID: PMC8020934 DOI: 10.1002/fsn3.2194] [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: 05/27/2020] [Revised: 12/26/2020] [Accepted: 12/29/2020] [Indexed: 11/10/2022] Open
Abstract
This study was conducted to prepare starch-based moisture absorbent pads from nanocellulose (NC) and nanowood (NW) particles using solution casting evaporation method and to evaluate their physical and mechanical properties at different thicknesses. The swelling degree (SD), water vapor permeability (WVP), tensile strength (TS), and elongation at break (EB), of prepared biofilms were measured. Structural properties of biofilms were evaluated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Results indicated that two types of biopolymers showed the highest level of SD at thicknesses lower than 100 µm. The highest level of SD in the lowest time belonged to nanowood biofilm. Nanowood biofilms also showed highest WVP at lower thicknesses. Due to the highest EB and the lowest TS values, improvement was observed in mechanical properties of both nano biofilms. The high hydration capacity and WVP of low-thickness NW films make it a promising candidate for developing biodegradable films with the potential to be used as a moisture-absorbing pad in active food packaging.
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Affiliation(s)
- Zahra Ebadi
- Department of Food Hygiene and Public HealthSchool of Veterinary MedicineShiraz UniversityShirazIran
- Agricultural Research, Education and Extension Organization (AREEO)Animal Science Research Institute (ASRI)KarajIran
| | - Hamidreza Ghaisari
- Department of Food Hygiene and Public HealthSchool of Veterinary MedicineShiraz UniversityShirazIran
| | - Behjat Tajeddin
- Agricultural Research Education and Extension Organization (AREEO)Agricultural Engineering Research Institute (AERI)KarajIran
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12
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Kaffashsaie E, Yousefi H, Nishino T, Matsumoto T, Mashkour M, Madhoushi M, Kawaguchi H. Direct conversion of raw wood to TEMPO-oxidized cellulose nanofibers. Carbohydr Polym 2021; 262:117938. [PMID: 33838815 DOI: 10.1016/j.carbpol.2021.117938] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/10/2021] [Accepted: 03/10/2021] [Indexed: 11/29/2022]
Abstract
A direct production route of cellulose nanofibers (TOCN-D) from raw wood particles of paulownia using simultaneous bleaching and TEMPO oxidation process was specifically investigated and introduced. For comparison, we prepared cellulose nanofibers (TOCN-C) through a common route of TEMPO oxidation of cellulose fibers, and cellulose nanofibers with disk grinding (GCNF). FE-SEM analysis showed that the average diameter of TOCN-D (5 ± 3 nm) was similar to that of TOCN-C (6 ± 3 nm). XRD results confirmed that the crystal properties of TOCN-D and that of TOCN-C were almost the same. TOCN-D and TOCN-C showed similar chemical, thermal and optical properties in FTIR, TGA and transparency tests, respectively. The nanopaper made from TOCN-D showed high Young's modulus (13.8 GPa) and tensile strength (233 MPa), which were similar to those of TOCN-C nanopaper. Owing the aforementioned similarities, it is concluded that the TOCN-D produced through direct route is a technically, environmental-friendly and economically valuable product.
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Affiliation(s)
- Elmira Kaffashsaie
- Laboratory of Sustainable Nanomaterials, Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, 4913815739, Gorgan, Iran; Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe, 657-8501, Japan
| | - Hossein Yousefi
- Laboratory of Sustainable Nanomaterials, Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, 4913815739, Gorgan, Iran.
| | - Takashi Nishino
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe, 657-8501, Japan
| | - Takuya Matsumoto
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe, 657-8501, Japan
| | - Mahdi Mashkour
- Laboratory of Sustainable Nanomaterials, Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, 4913815739, Gorgan, Iran
| | - Mehrab Madhoushi
- Laboratory of Sustainable Nanomaterials, Department of Wood Engineering and Technology, Gorgan University of Agricultural Sciences and Natural Resources, 4913815739, Gorgan, Iran
| | - Hideo Kawaguchi
- Graduate School of Science, Technology & Innovation, Kobe University, Rokko, Nada, Kobe, 657-8501, Japan
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13
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Hobisch MA, Zabler S, Bardet SM, Zankel A, Nypelö T, Eckhart R, Bauer W, Spirk S. How cellulose nanofibrils and cellulose microparticles impact paper strength-A visualization approach. Carbohydr Polym 2020; 254:117406. [PMID: 33357893 DOI: 10.1016/j.carbpol.2020.117406] [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] [Received: 06/22/2020] [Revised: 11/07/2020] [Accepted: 11/12/2020] [Indexed: 11/28/2022]
Abstract
Cellulosic nanomaterials are in the focus of academia and industry to realize light-weight biobased materials with remarkable strength. While the effect is well known, the distribution of these nanomaterials are less explored, particularly for paper sheets. Here, we explore the 3D distribution of micro and nanosized cellulosic particles in paper sheets and correlate their extent of fibrillation to the distribution inside the sheets and subsequently to paper properties. To overcome challenges with contrast between the particles and the matrix, we attached probes on the cellulose nano/microparticles, either by covalent attachment of fluorescent dyes or by physical deposition of cobalt ferrite nanoparticles. The increased contrast enabled visualization of the micro and nanosized particles inside the paper matrix using multiphoton microscopy, X-ray microtomography and SEM-EDX. The results indicate that fibrillary fines enrich at pores and fiber-fiber junctions, thereby increasing the relative bonded area between fibers to enhance paper strength while CNF seems to additionally form an inner 3D network.
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Affiliation(s)
- Mathias A Hobisch
- Institute of Bioproducts and Paper Technology, Graz University of Technology, A-8010 Graz, Austria
| | - Simon Zabler
- Fraunhofer IIS, Josef-Martin-Weg 63, 97074 Würzburg, Germany
| | - Sylvia M Bardet
- CNRS, XLIM, UMR 7252, Université Limoges, F-87000 Limoges, France
| | - Armin Zankel
- Institute of Electron Microscopy and Nanoanalysis, NAWI Graz, Graz University of Technology and Centre for Electron Microscopy, Steyrergasse 17, 8010 Graz, Austria
| | - Tiina Nypelö
- Wallenberg Wood Science Center, Chalmers University of Technology, 412 96 Gothenburg, Sweden; Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden
| | - Rene Eckhart
- Institute of Bioproducts and Paper Technology, Graz University of Technology, A-8010 Graz, Austria
| | - Wolfgang Bauer
- Institute of Bioproducts and Paper Technology, Graz University of Technology, A-8010 Graz, Austria
| | - Stefan Spirk
- Institute of Bioproducts and Paper Technology, Graz University of Technology, A-8010 Graz, Austria.
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14
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Czaikoski A, da Cunha RL, Menegalli FC. Rheological behavior of cellulose nanofibers from cassava peel obtained by combination of chemical and physical processes. Carbohydr Polym 2020; 248:116744. [DOI: 10.1016/j.carbpol.2020.116744] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/03/2020] [Accepted: 07/08/2020] [Indexed: 11/26/2022]
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15
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Covino C, Sorrentino A, Di Pierro P, Roscigno G, Vece AP, Masi P. Lignocellulosic fibres from enzyme-treated tomato plants: Characterisation and application in paperboard manufacturing. Int J Biol Macromol 2020; 161:787-796. [DOI: 10.1016/j.ijbiomac.2020.06.077] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 10/24/2022]
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16
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Kumar V, Pathak P, Bhardwaj NK. Facile chemo-refining approach for production of micro-nanofibrillated cellulose from bleached mixed hardwood pulp to improve paper quality. Carbohydr Polym 2020; 238:116186. [DOI: 10.1016/j.carbpol.2020.116186] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/24/2020] [Accepted: 03/15/2020] [Indexed: 11/29/2022]
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17
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Naghdi T, Yousefi H, Sharifi AR, Golmohammadi H. Nanopaper-based sensors. COMPREHENSIVE ANALYTICAL CHEMISTRY 2020. [DOI: 10.1016/bs.coac.2020.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Muqeet M, Qureshi UA, Mahar RB, Khatri Z, Ahmed F, Kim IS. Ionic cross-linking of cellulose nanofibers: an approach to enhance mechanical stability for dynamic adsorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:28842-28851. [PMID: 31376130 DOI: 10.1007/s11356-019-06076-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
Herein, we attempt to improve the mechanical stability of anionic functionalized cellulose nanofibers (a-CNF) having 1.25 mmol of carboxymethyl groups per gram of cellulose nanofibers (CNF). The a-CNF and cross-linked a-CNF (za-CNF) then used for water desalination in the continuous mode using a tubular adsorption column. It is worth mentioning that the za-CNF possess 40% degree of cross-linking provided better mechanical stability as the tensile strength improved from 3.2 to 5.2 MPa over a-CNF. The IR spectroscopy was used to confirm the success of chemical modifications. Upon ionic cross-linking, the BET surface area reduced from 13.53 to 7.54 m2·g-1 corresponds to a-CNF and za-CNF, respectively. Moreover, this research was extended to determine the dynamic adsorption capacities for a-CNF and za-CNF, which were found to be 21 and 10 mg·g-1 respectively at a flow rate of 5-mL·min-1 explained by Thomas model.
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Affiliation(s)
- Muhammad Muqeet
- U.S.-Pakistan Center for Advanced Studies in Water, Mehran University of Engineering and Technology, Jamshoro, 76060, Pakistan
| | - Umair Ahmed Qureshi
- Center of Excellence in Nanotechnology and Materials, Mehran University of Engineering and Technology, Jamshoro, 76060, Pakistan
| | - Rasool Bux Mahar
- U.S.-Pakistan Center for Advanced Studies in Water, Mehran University of Engineering and Technology, Jamshoro, 76060, Pakistan.
| | - Zeeshan Khatri
- Center of Excellence in Nanotechnology and Materials, Mehran University of Engineering and Technology, Jamshoro, 76060, Pakistan.
| | - Farooq Ahmed
- Center of Excellence in Nanotechnology and Materials, Mehran University of Engineering and Technology, Jamshoro, 76060, Pakistan
| | - Ick-Soo Kim
- Nano Fusion Technology Research Lab, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, 3-15-1, Tokida, Ueda, Nagano, 386-8567, Japan
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19
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Zhou T, Wang JW, Huang M, An R, Tan H, Wei H, Chen ZD, Wang X, Liu X, Wang F, He J. Breathable Nanowood Biofilms as Guiding Layer for Green On-Skin Electronics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901079. [PMID: 31165570 DOI: 10.1002/smll.201901079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/01/2019] [Indexed: 06/09/2023]
Abstract
Thin-film electronics are urged to be directly laminated onto human skin for reliable, sensitive biosensing together with feedback transdermal therapy, their self-power supply using the thermoelectric and moisture-induced-electric effects also has gained great attention (skin and on-skin electronics (On-skinE) themselves are energy storehouses). However, "thin-film" On-skinE 1) cannot install "bulky" heatsinks or sweat transport channels, but the output power of thermoelectric generator and moisture-induced-electric generator relies on the temperature difference (∆T ) across generator and the ambient humidity (AH), respectively; 2) lack a routing and accumulation of sweat for biosensing, lack targeted delivery of drugs for precise transdermal therapy; and 3) need insulation between the heat-generating unit and heat-sensitive unit. Here, two breathable nanowood biofilms are demonstrated, which can help insulate between units and guide the heat and sweat to another in-plane direction. The transparent biofilms achieve record-high transport// /transport⊥ (//: along cellulose nanofiber alignment direction, ⊥: perpendicular direction) of heat (925%) and sweat (338%), winning applications emphasizing on ∆T/AH-dependent output power and "reliable" biosensing. The porous biofilms are competent in applications where "sensitive" biosensing (transporting// sweat up to 11.25 mm s-1 at the 1st second), "insulating" between units, and "targeted" delivery of saline-soluble drugs are of uppermost priority.
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Affiliation(s)
- Tianle Zhou
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing, 210094, China
- Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology, Nanjing University of Science and Technology, Nanjing, 210094, China
- NTNU Nanomechanical Lab, Department of Structural Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, 7491, Norway
| | - Jin-Wen Wang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Ming Huang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
- Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Rong An
- Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology, Nanjing University of Science and Technology, Nanjing, 210094, China
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Huaping Tan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
- Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Hao Wei
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zheng-Dong Chen
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Xin Wang
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Xiaoheng Liu
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Feng Wang
- NTNU Nanomechanical Lab, Department of Structural Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, 7491, Norway
| | - Jianying He
- NTNU Nanomechanical Lab, Department of Structural Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, 7491, Norway
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20
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Production of a new platform based calixarene nanofiber for controlled release of the drugs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:466-474. [DOI: 10.1016/j.msec.2019.03.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 02/12/2019] [Accepted: 03/10/2019] [Indexed: 01/18/2023]
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Chakraborty P, Kumar A. The extracellular matrix of mycobacterial biofilms: could we shorten the treatment of mycobacterial infections? MICROBIAL CELL 2019; 6:105-122. [PMID: 30740456 PMCID: PMC6364259 DOI: 10.15698/mic2019.02.667] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A number of non-tuberculous mycobacterium species are opportunistic pathogens and ubiquitously form biofilms. These infections are often recalcitrant to treatment and require therapy with multiple drugs for long duration. The biofilm resident bacteria also display phenotypic drug tolerance and thus it has been hypothesized that the drug unresponsiveness in vivo could be due to formation of biofilms inside the host. We have discussed the biofilms of several pathogenic non-tuberculous mycobacterium (NTM) species in context to the in vivo pathologies. Besides pathogenic NTMs, Mycobacterium smegmatis is often used as a model organism for understanding mycobacterial physiology and has been studied extensively for understanding the mycobacterial biofilms. A number of components of the mycobacterial cell wall such as glycopeptidolipids, short chain mycolic acids, monomeromycolyl diacylglycerol, etc. have been shown to play an important role in formation of pellicle biofilms. It shall be noted that these components impart a hydrophobic character to the mycobacterial cell surface that facilitates cell to cell interaction. However, these components are not necessarily the constituents of the extracellular matrix of mycobacterial biofilms. In the end, we have described the biofilms of Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis. Three models of Mtb biofilm formation have been proposed to study the factors regulating biofilm formation, the physiology of the resident bacteria, and the nature of the biomaterial that holds these bacterial masses together. These models include pellicle biofilms formed at the liquid-air interface of cultures, leukocyte lysate-induced biofilms, and thiol reductive stressinduced biofilms. All the three models offer their own advantages in the study of Mtb biofilms. Interestingly, lipids (mainly keto-mycolic acids) are proposed to be the primary component of extracellular polymeric substance (EPS) in the pellicle biofilm, whereas the leukocyte lysate-induced and thiol reductive stress-induced biofilms possess polysaccharides as the primary component of EPS. Both models also contain extracellular DNA in the EPS. Interestingly, thiol reductive stressinduced Mtb biofilms are held together by cellulose and yet unidentified structural proteins. We believe that a better understanding of the EPS of Mtb biofilms and the physiology of the resident bacteria will facilitate the development of shorter regimen for TB treatment.
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Affiliation(s)
- Poushali Chakraborty
- Council of Scientific and Industrial Research, Institute of Microbial Technology, Chandigarh, India 160036
| | - Ashwani Kumar
- Council of Scientific and Industrial Research, Institute of Microbial Technology, Chandigarh, India 160036.,CSIR-Academy of Scientific & Innovative Research (AcSIR), Council of Scientific & Industrial Research, New Delhi-110001
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