1
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Lee HG, Lee SY, Yoo S. Innovative food-upcycling solutions: Comparative analysis of edible films from kimchi-extracted cellulose, sorbitol, and citric acid for food packaging applications. Food Chem 2024; 450:139267. [PMID: 38615526 DOI: 10.1016/j.foodchem.2024.139267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/16/2024]
Abstract
In this study, kimchi-extracted cellulose was utilized to fabricate edible films using a hot synthetic approach, followed by solvent casting, and employing sorbitol and citric acid as the plasticizer and crosslinker, respectively. The chemical, optical, physical, and thermal properties of these films were explored to provide a comparative assessment of their suitability for various packaging applications. Chemical analyses confirmed that the kimchi-extracted cellulose comprised cellulose Iβ and amorphous cellulose and did not contain any impurities. Optical analyses revealed that kimchi-extracted cellulose-containing films exhibited better-dispersed surfaces than films fabricated from commercial cellulose. Physical property analyses indicated their hydrophilic characteristics with contact angles <20°. In the thermal analysis, similar Tg results confirmed the comparable thermal stability between films containing commercial microcrystalline cellulose-containing films and kimchi-extracted cellulose-containing films. Edible films produced from kimchi-extracted cellulose through food-upcycling approaches are therefore promising for applications as packaging materials.
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Affiliation(s)
- Hyun-Gyu Lee
- Hygienic Safety and Materials Research Group, Technology Innovation Research Division, World Institute of Kimchi, 86 Kimchi-ro, Nam-gu, Gwangju 61755, Republic of Korea.
| | - Seong Youl Lee
- Hygienic Safety and Materials Research Group, Technology Innovation Research Division, World Institute of Kimchi, 86 Kimchi-ro, Nam-gu, Gwangju 61755, Republic of Korea.
| | - SeungRan Yoo
- Hygienic Safety and Materials Research Group, Technology Innovation Research Division, World Institute of Kimchi, 86 Kimchi-ro, Nam-gu, Gwangju 61755, Republic of Korea.
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2
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Aitbella H, Belachemi L, Merle N, Zinck P, Kaddami H. Schiff Base Functionalized Cellulose: Towards Strong Support-Cobalt Nanoparticles Interactions for High Catalytic Performances. Molecules 2024; 29:1734. [PMID: 38675554 PMCID: PMC11051967 DOI: 10.3390/molecules29081734] [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: 02/28/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
A new hybrid catalyst consisting of cobalt nanoparticles immobilized onto cellulose was developed. The cellulosic matrix is derived from date palm biomass waste, which was oxidized by sodium periodate to yield dialdehyde and was further derivatized by grafting orthoaminophenol as a metal ion complexing agent. The new hybrid catalyst was characterized by FT-IR, solid-state NMR, XRD, SEM, TEM, ICP, and XPS. The catalytic potential of the nanocatalyst was then evaluated in the catalytic hydrogenation of 4-nitrophenol to 4-aminophenol under mild experimental conditions in aqueous medium in the presence of NaBH4 at room temperature. The reaction achieved complete conversion within a short period of 7 min. The rate constant was calculated to be K = 8.7 × 10-3 s-1. The catalyst was recycled for eight cycles. Furthermore, we explored the application of the same catalyst for the hydrogenation of cinnamaldehyde using dihydrogen under different reaction conditions. The results obtained were highly promising, exhibiting both high conversion and excellent selectivity in cinnamyl alcohol.
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Affiliation(s)
- Hicham Aitbella
- IMED-Lab, Team of Organometallic and Macromolecular Chemistry-Composite Materials, Department of Chemical Sciences, Faculty of Science and Technology, Cadi Ayyad University, Marrakech 40000, Morocco
- Unité de Catalyse et Chimie du Solide, UMR 8181, University Lille, CNRS, Centrale Lille, University Artois, F-59650 Villeneuve d’Ascq, France
| | - Larbi Belachemi
- IMED-Lab, Team of Organometallic and Macromolecular Chemistry-Composite Materials, Department of Chemical Sciences, Faculty of Science and Technology, Cadi Ayyad University, Marrakech 40000, Morocco
| | - Nicolas Merle
- Unité de Catalyse et Chimie du Solide, UMR 8181, University Lille, CNRS, Centrale Lille, University Artois, F-59650 Villeneuve d’Ascq, France
| | - Philippe Zinck
- IMED-Lab, Team of Organometallic and Macromolecular Chemistry-Composite Materials, Department of Chemical Sciences, Faculty of Science and Technology, Cadi Ayyad University, Marrakech 40000, Morocco
| | - Hamid Kaddami
- IMED-Lab, Team of Organometallic and Macromolecular Chemistry-Composite Materials, Department of Chemical Sciences, Faculty of Science and Technology, Cadi Ayyad University, Marrakech 40000, Morocco
- Sustainable Materials Research Center (SusMat-RC), Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Ben Guerir 43150, Morocco
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3
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Chiriac AP, Ghilan A, Croitoriu A, Serban A, Bercea M, Stoleru E, Nita LE, Doroftei F, Stoica I, Bargan A, Rusu AG, Chiriac VM. Study on cellulose nanofibrils/copolymacrolactone based nano-composites with hydrophobic behaviour, self-healing ability and antioxidant activity. Int J Biol Macromol 2024; 262:130034. [PMID: 38340942 DOI: 10.1016/j.ijbiomac.2024.130034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
The multiple uses of cellulose nanofibrils (CNFs) originate from their availability from renewable resources, and are due to their physico-chemical properties, biodegradability and biocompatibility. At the same time, reducing sensitivity to humidity, increasing interfacial adhesion and hydrophobic modification of the CNF surface to diversify applications and improve operation, are current targets pursued. This study focuses on the preparation of a novel gel structure using cellulose nanofibrils (CNFs) and poly(ethylene brassylate-co-squaric acid) (PEBSA50/50), a bio-based copolymacrolactone. The primary goal is to achieve the gel with reduced sensitivity to humidity and enhanced hydrophobic behaviour. The new system was characterized in comparison to its constituent components using various techniques, such as Fourier transform infrared spectroscopy, thermal analysis, X-ray diffraction, and NIR - chemical imaging. Rheological tests demonstrated the formation of the CNF_PEBSA50/50 gel as a result of physical interactions between the two polymeric partners and revealed self-healing abilities for the prepared gels. Determination of the contact angle, surface free energy, as well as dynamic measurements of the vapour sorption of the CNF_PEBSA50/50 system, confirmed the achievement of the study's aim. Furthermore, the CNF_PEBSA50/50 network was utilized to encapsulate citric acid, resulting in the creation of a new bioactive composite with both antioxidant and antimicrobial activity.
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Affiliation(s)
- Aurica P Chiriac
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania.
| | - Alina Ghilan
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Alexandra Croitoriu
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Alexandru Serban
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Maria Bercea
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Elena Stoleru
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Loredana Elena Nita
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Florica Doroftei
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Iuliana Stoica
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Alexandra Bargan
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Alina Gabriela Rusu
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Vlad Mihai Chiriac
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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4
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Maiti S, Maji B, Yadav H. Progress on green crosslinking of polysaccharide hydrogels for drug delivery and tissue engineering applications. Carbohydr Polym 2024; 326:121584. [PMID: 38142088 DOI: 10.1016/j.carbpol.2023.121584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/06/2023] [Accepted: 11/10/2023] [Indexed: 12/25/2023]
Abstract
Natural polysaccharides are being studied for their biocompatibility, biodegradability, low toxicity, and low cost in the fabrication of various hydrogel devices. However, due to their insufficient physicochemical and mechanical qualities, polysaccharide hydrogels alone are not acceptable for biological applications. Various synthetic crosslinkers have been tested to overcome the drawbacks of standalone polysaccharide hydrogels; however, the presence of toxic residual crosslinkers, the generation of toxic by-products following biodegradation, and the requirement of toxic organic solvents for processing pose challenges in achieving the desired non-toxic biomaterials. Natural crosslinkers such as citric acid, tannic acid, vanillin, gallic acid, ferulic acid, proanthocyanidins, phytic acid, squaric acid, and epigallocatechin have been used to generate polysaccharide-based hydrogels in recent years. Various polysaccharides, including cellulose, alginate, pectin, hyaluronic acid, and chitosan, have been hydrogelized and investigated for their potential in drug delivery and tissue engineering applications using natural crosslinkers. We attempted to provide an overview of the synthesis of polysaccharide-based hydrogel systems (films, complex nanoparticles, microspheres, and porous scaffolds) based on green crosslinkers, as well as a description of the mechanism of crosslinking and properties with a special emphasis on drug delivery, and tissue engineering applications.
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Affiliation(s)
- Sabyasachi Maiti
- Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh-484887, India.
| | - Biswajit Maji
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Harsh Yadav
- Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh-484887, India
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5
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Ge J, Lu W, Zhang H, Gong Y, Wang J, Xie Y, Chang Q, Deng X. Exploring sustainable food packaging: Nanocellulose composite films with enhanced mechanical strength, antibacterial performance, and biodegradability. Int J Biol Macromol 2024; 259:129200. [PMID: 38218266 DOI: 10.1016/j.ijbiomac.2024.129200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/24/2023] [Accepted: 01/01/2024] [Indexed: 01/15/2024]
Abstract
Food packaging films play a vital role in preserving and protecting food. However, due to their non-biodegradability, conventional packaging materials have led to significant environmental pollution. To overcome this hurdle, we have developed safe, innovative, sustainable and biodegradable packaging materials that can effectively extend the shelf life of food. In this study, two types of cellulose materials cellulose nanofibers (CNF) and carboxymethyl cellulose (CMC) with complementary roles were combined to prepare nanocellulose composite films with high transparency (90.3 %) of a certain thickness (30 ± 0.019 μm) by solution casting method, and their mechanical properties were further optimized by the addition of plasticizer-glycerol (Gly) and cross-linking agent-glutaraldehyde (GA), so as to maintain the strong tensile strength (≈112.60 MPa) and better malleability (4.12 %). In addition, we loaded the natural active agent tea polyphenols (TPs) with different concentrations to study the inhibition effect on E.coli and S.aureus and to simulate food packaging. Finally, we also found that the synthesized nanocellulose composite films can also achieve rapid degradation in a short time through soil burial, water flushing and immersion. The excellent performance demonstrated in this study provides reference value for further replacing petroleum-based materials with biomass materials in the field of food packaging.
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Affiliation(s)
- Jiu Ge
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Wenyi Lu
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Heng Zhang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Yao Gong
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Jiao Wang
- School of Life Sciences, Shanghai University, Shanghai, PR China
| | - Yijun Xie
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Qing Chang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China.
| | - Xiaoyong Deng
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China.
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6
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Aslam A, Umer Ashraf M, Barkat K, Mahmood A, Muhammad Sarfraz R, Malatani RT, Gad HA. Green synthesis of quince/pectin cross-linked superporous hydrogel sponges for pH-regulated sustained domperidone delivery. Int J Pharm 2023; 644:123305. [PMID: 37572857 DOI: 10.1016/j.ijpharm.2023.123305] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/14/2023]
Abstract
The present study aims to utilize green synthesis to fabricate stimuli-responsive, smart, quince/pectin cross-linked hydrogel sponges for the pH-regulated conveyance of domperidone. The designed hydrogel sponges were evaluated for a sol-gel fraction (%), swelling studies and kinetics, drug loading (%), electrolyte-responsive character, scanning electron microscopy (SEM), thermal analysis, drug-excipient compatibility studies (FTIR), X-ray diffraction (XRD) analysis, mechanical testing, in-vitro drug release studies, and acute oral toxicity studies. The drug loading (%) ranged from 67 to 85%. Hydrogel sponges displayed pH-responsive swelling potential, with optimum swelling in a phosphate buffer (pH 7.4) and insignificant swelling in an acidic buffer of pH 1.2. The prepared hydrogel sponges displayed second-order swelling dynamics. The FTIR data revealed the successful fabrication of the hydrogel sponges with the primary drug peaks remaining unchanged, demonstrating excipients-drug compatibility. SEM confirmed the rough, porous surface of hydrogel sponges with numerous cracks. XRD measurements revealed the transformation of the crystalline nature of domperidone into an amorphous one within the developed hydrogel sponges. Dissolution studies revealed little domperidone release in an acidic environment. However, hydrogel sponges exhibited release up to 10 h in phosphate buffer.The sponge's non-toxic or biocompatible character was confirmed through toxicological studies. Thus, the finding indicates that quince/pectin cross-linked hydrogel sponges are durable enough to deliver the domperidone to the gut for a longer time.
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Affiliation(s)
- Aysha Aslam
- Faculty of Pharmacy, The University of Lahore, Lahore 54600, Pakistan; Faculty of Pharmacy, Minhaj University, Lahore 54770, Pakistan.
| | | | - Kashif Barkat
- Faculty of Pharmacy, The University of Lahore, Lahore 54600, Pakistan.
| | - Asif Mahmood
- Department of Pharmacy, University of Chakwal, Chakwal 48800, Pakistan.
| | | | - Rania T Malatani
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Heba A Gad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt; Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia.
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7
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Csiszár E, Herceg I, Fekete E. Effect of Heating and Citric Acid on the Performance of Cellulose Nanocrystal Thin Films. Polymers (Basel) 2023; 15:polym15071698. [PMID: 37050313 PMCID: PMC10096820 DOI: 10.3390/polym15071698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/22/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Cellulose nanocrystals (CNCs) were extracted from bleached cotton by sulfuric acid hydrolysis. Thin films were prepared from the aqueous suspension of CNCs by casting and evaporation with 15% glycerol as a plasticizer. Our research aimed to create stable films resistant to water. The structure and the interactions of the films were modified by short (10 min) heating at different temperatures (100, 140, and 160 °C) and by adding different amounts of citric acid (0, 10, 20, and 30%). Various analytical methods were used to determine the structure, surface properties, and mechanical properties. The interaction of composite films with water and water vapor was also investigated. Heat treatment did not significantly affect the film properties. Citric acid, without heat treatment, acted as a plasticizer. It promoted the disintegration of films in water, increased water vapor sorption, and reduced tensile strength, resulting in flexible and easy-to-handle films. The combination of heat treatment and citric acid resulted in stable liquid-water-resistant films with excellent mechanical properties. A minimum heating temperature of 120 °C and a citric acid concentration of 20% were required to obtain a stable CNC film structure resistant to liquid water.
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8
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Balçık Tamer Y. Development of citric acid crosslinked biodegradable chitosan/hydroxyethyl cellulose/organo-modified nanoclay composite films as sustainable food packaging materials. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2023.2195908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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9
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Klockars KW, Greca LG, Majoinen J, Mihhels K, Rojas OJ, Tardy BL. Drying stresses in cellulose nanocrystal coatings: Impact of molecular and macromolecular additives. Carbohydr Polym 2023; 303:120465. [PMID: 36657848 DOI: 10.1016/j.carbpol.2022.120465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 12/07/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022]
Abstract
The industrial implementation of cellulose nanocrystals (CNCs) in films and coatings requires thorough evaluation of the internal stresses post-consolidation, as they cause fracturing and peeling. Characterizing the impact of plasticizing additives on stress is therefore critical. Herein, we use the deflection of thin glass substrates to measure drying stresses in consolidating CNC films, and benchmark the impact of five additives (glucose, glycerol, poly(ethylene glycol) (PEG), poly(vinyl alcohol) (PVA) and bovine serum albumin). Glycerol and PEG reduced drying stresses effectively, while PEG of increased molecular weight (from 0.2 to 10 kDa), PVA, and BSA were less effective. We analyzed the temporal aspects of the process, where stress relaxation of up to 30 % was observed 2 years after coating formation. Finally, we provide a framework to evaluate the impact of CNC morphology on residual stresses. The introduced approach is expected to fast-track the optimization and implementation of coatings based on biocolloids.
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Affiliation(s)
- Konrad W Klockars
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
| | - Luiz G Greca
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
| | - Johanna Majoinen
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
| | - Karl Mihhels
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland; Bioproducts Institute, Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z4, Canada.
| | - Blaise L Tardy
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland; Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates.
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10
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Jakubowska E, Gierszewska M, Szydłowska-Czerniak A, Nowaczyk J, Olewnik-Kruszkowska E. Development and characterization of active packaging films based on chitosan, plasticizer, and quercetin for repassed oil storage. Food Chem 2023; 399:133934. [PMID: 35998489 DOI: 10.1016/j.foodchem.2022.133934] [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: 03/06/2022] [Revised: 06/30/2022] [Accepted: 08/09/2022] [Indexed: 10/15/2022]
Abstract
Novel chitosan (Ch) films containing choline chloride and citric acid mixture as plasticizer (deep eutectic solvent, DES) and different amounts of quercetin (QUE) as antioxidant additive were prepared. Physicochemical and mechanical characteristics of the developed Ch/DES/QUE films were studied using FTIR, SEM, and AFM techniques. FTIR spectra revealed the possible interactions between all the components. The surface of the films was dense and rough. The addition of quercetin caused an increase in the tensile strength (TS) and Young's modulus, but significantly decreased the elongation at break. The films containing quercetin showed improved antioxidant activity in relation to Ch/DES film. Finally, the oxidation phenomena of rapeseed oils with and without chitosan films were evaluated as amounts of primary and secondary oxidation products and total oxidation index. The addition of Ch/DES films with quercetin to oil samples successfully retarded secondary lipid oxidation processes and improved its antioxidant activity under the accelerated storage condition.
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Affiliation(s)
- Ewelina Jakubowska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland; Łukasiewicz Research Network - Industrial Chemistry Institute, 8 Rydygiera Street, 01-793 Warsaw, Poland.
| | - Magdalena Gierszewska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Aleksandra Szydłowska-Czerniak
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Analytical Chemistry and Applied Spectroscopy, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Jacek Nowaczyk
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Ewa Olewnik-Kruszkowska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
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11
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Aggarwal R, Garg AK, Saini D, Sonkar SK, Sonker AK, Westman G. Cellulose Nanocrystals Derived from Microcrystalline Cellulose for Selective Removal of Janus Green Azo Dye. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ruchi Aggarwal
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Anjali Kumari Garg
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Deepika Saini
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Amit Kumar Sonker
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg41296, Sweden
- Wallenberg Wood Science Center (WWSC), Chalmers University of Technology, Gothenburg41296, Sweden
| | - Gunnar Westman
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg41296, Sweden
- Wallenberg Wood Science Center (WWSC), Chalmers University of Technology, Gothenburg41296, Sweden
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12
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Kaur T, Joshi A, Singh N. Natural cocktail of bioactive factors conjugated on nanofibrous dressing for improved wound healing. BIOMATERIALS ADVANCES 2022; 143:213163. [PMID: 36327826 DOI: 10.1016/j.bioadv.2022.213163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/07/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
Any interference in the timely and orderly progression through all the phases of healing process can turn a minor injury into a chronic wound. Most of the wound dressings available in the market are moderately effective and have not shown satisfactory improvement in healing. Along with the appropriate wound management, it is imperative for a dressing to facilitate the wound repair process too. In the present research, we hypothesize to improve the wound healing process by applying cost effective natural cocktail of various bioactive factors. Bovine colostrum contains high levels of immunoglobulins, lactoferrin, hormones and cytokines which play significant role in wound healing. Hence, multifunctional colostrum conjugated PCL-PEG based nanofibrous dressings were developed and analyzed for their physicochemical properties and cellular responses. The dressings were also evaluated for cell migration, antioxidant, anti-inflammatory and anti-bacterial properties. In-vivo wound healing ability was validated on a rat wound model. Numerous growth factors present in the colostrum showed their role in stimulation of skin repair and regeneration by direct action on genetic material. Significantly less inflammation in colostrum treated wounds was observed due to anti-inflammatory properties of lactoferrin. Thus obtained results confirmed the suitability of these multifunctional colostrum conjugated nanofibrous dressings for improved wound healing.
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Affiliation(s)
- Tejinder Kaur
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Akshay Joshi
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Neetu Singh
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India; Biomedical Engineering Unit, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
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13
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Hasannezhad H, Yazdani M. Investigate the dynamic compressive (cushioning) response of 3D GFRP composites when the STF matrix base material is modified PEG. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120304] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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da Costa Silva V, do Nascimento TG, Mergulhão NLON, Freitas JD, Duarte IFB, de Bulhões LCG, Dornelas CB, de Araújo JX, dos Santos J, Silva ACA, Basílio ID, Goulart MOF. Development of a Polymeric Membrane Impregnated with Poly-Lactic Acid (PLA) Nanoparticles Loaded with Red Propolis (RP). Molecules 2022; 27:6959. [PMID: 36296550 PMCID: PMC9609202 DOI: 10.3390/molecules27206959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 09/10/2023] Open
Abstract
The main objectives of this study were to develop and characterize hydrophilic polymeric membranes impregnated with poly-lactic acid (PLA) nanoparticles (NPs) combined with red propolis (RP). Ultrasonic-assisted extraction was used to obtain 30% (w/v) red propolis hydroalcoholic extract (RPE). The NPs (75,000 g mol-1) alone and incorporated with RP (NPRP) were obtained using the solvent emulsification and diffusion technique. Biopolymeric hydrogel membranes (MNPRP) were obtained using carboxymethylcellulose (CMC) and NPRP. Their characterization was performed using thermal analysis, Fourier transform infrared (FTIR), total phenols (TPC) and flavonoids contents (TFC), and antioxidant activity through the radical scavenging assay with 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) and Ferric reducing antioxidant power (FRAP). The identification and quantification of significant RP markers were performed through UPLC-DAD. The NPs were evaluated for particle size, polydispersity index, and zeta potential. The TPC for RPE, NPRP, and MNPRP was 240.3 ± 3.4, 191.7 ± 0.3, and 183.4 ± 2.1 mg EGA g-1, while for TFC, the value was 37.8 ± 0.9, 35 ± 3.9, and 26.8 ± 1.9 mg EQ g-1, respectively. Relevant antioxidant activity was also observed by FRAP, with 1400.2 (RPE), 1294.2 (NPRP), and 696.2 µmol Fe2+ g-1 (MNPRP). The primary markers of RP were liquiritigenin, isoliquiritigenin, and formononetin. The particle sizes were 194.1 (NPs) and 361.2 nm (NPRP), with an encapsulation efficiency of 85.4%. Thermal analysis revealed high thermal stability for the PLA, nanoparticles, and membranes. The DSC revealed no interaction between the components. FTIR allowed for characterizing the RPE encapsulation in NPRP and CMC for the MNPRP. The membrane loaded with NPRP, fully characterized, has antioxidant capacity and may have application in the treatment of skin wounds.
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Affiliation(s)
- Valdemir da Costa Silva
- Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, AL, Brazil
| | - Ticiano G. do Nascimento
- Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
| | - Naianny L. O. N. Mergulhão
- Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, AL, Brazil
| | - Johnnatan D. Freitas
- Department of Chemistry, Federal Institute of Education, Science and Technology, Alagoas, Maceio 57035-660, AL, Brazil
| | - Ilza Fernanda B. Duarte
- Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, AL, Brazil
| | | | - Camila B. Dornelas
- Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
| | - João Xavier de Araújo
- Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, AL, Brazil
| | - Jucenir dos Santos
- Department of Food Technology, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil
| | - Anielle C. A. Silva
- Physics Institute, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
| | - Irinaldo D. Basílio
- Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceio 57072-970, AL, Brazil
| | - Marilia O. F. Goulart
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, AL, Brazil
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15
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Recent advances in Poly(ionic liquids) membranes for CO2 separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Stocker CW, Lin M, Wong VNL, Patti AF, Garnier G. Modulating superabsorbent polymer properties by adjusting the amphiphilicity. Front Chem 2022; 10:1009616. [PMID: 36176894 PMCID: PMC9513321 DOI: 10.3389/fchem.2022.1009616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/24/2022] [Indexed: 12/02/2022] Open
Abstract
The role of amphiphilicity in polysaccharide-based superabsorbent polymers is paramount in determining material properties. While the performance of freeze-dried polymers is improved by maximizing hydrophilicity, this may not be the case for evaporative-dried polymers. In this study, four diglycidyl ether crosslinkers, with varying chain lengths and amphiphilicities, were used to synthesize a series of evaporative-dried carboxymethyl cellulose-based superabsorbent films. Through structural and physiochemical characterization, the effect of amphiphilicity on swelling and mechanical properties was established. Contrary to freeze-dried polymers, it was found that the addition of hydrophobic moieties by crosslinking with novel poly(propylene glycol) diglycidyl ether crosslinkers increased the swelling performance of evaporative-dried polymers. By adding hydrophobic functional groups, a reduction in inter-chain hydrogen bonding occurs during evaporative-drying, reducing the degree of hornification and decreasing the entropy requirement for water uptake. By optimizing the amphiphilic ratio, a poly(propylene glycol)-carboxymethyl cellulose polymer achieved a swelling capacity of 182 g/g which is competitive with freeze-dried cellulose-based hydrogels. The mechanical properties of these films improved with the addition of the crosslinkers, with glycerol-carboxymethyl cellulose polymers achieving a tensile strength of 39 MPa and a Young’s Modulus of 4.0 GPa, indicating their potential application as low-cost, swellable films.
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Affiliation(s)
- Craig W. Stocker
- Department of Chemical and Biological Engineering, Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, VIC, Australia
| | - Maoqi Lin
- Department of Chemical and Biological Engineering, Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, VIC, Australia
| | - Vanessa N. L. Wong
- School of Earth, Atmosphere and Environment, Monash University, Clayton, VIC, Australia
| | | | - Gil Garnier
- Department of Chemical and Biological Engineering, Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, VIC, Australia
- *Correspondence: Gil Garnier,
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17
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Hasan-nezhad H, Yazdani M, Akbari A, Salami-Kalajahi M, Kalhori MR. Study the effects of PEG modification methods on the resistance of 3D E-glass woven-STF composites at quasi-static and low-velocity impact loads. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Bonetti L, Fiorati A, D’Agostino A, Pelacani CM, Chiesa R, Farè S, De Nardo L. Smart Methylcellulose Hydrogels for pH-Triggered Delivery of Silver Nanoparticles. Gels 2022; 8:gels8050298. [PMID: 35621596 PMCID: PMC9140787 DOI: 10.3390/gels8050298] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 02/01/2023] Open
Abstract
Infection is a severe complication in chronic wounds, often leading to morbidity or mortality. Current treatments rely on dressings, which frequently contain silver as a broad-spectrum antibacterial agent, although improper dosing can result in severe side effects. This work proposes a novel methylcellulose (MC)-based hydrogel designed for the topical release of silver nanoparticles (AgNPs) via an intelligent mechanism activated by the pH variations in infected wounds. A preliminary optimization of the physicochemical and rheological properties of MC hydrogels allowed defining the optimal processing conditions in terms of crosslinker (citric acid) concentration, crosslinking time, and temperature. MC/AgNPs nanocomposite hydrogels were obtained via an in situ synthesis process, exploiting MC both as a capping and reducing agent. AgNPs with a 12.2 ± 2.8 nm diameter were obtained. MC hydrogels showed a dependence of the swelling and degradation behavior on both pH and temperature and a noteworthy pH-triggered release of AgNPs (release ~10 times higher at pH 12 than pH 4). 1H-NMR analysis revealed the role of alkaline hydrolysis of the ester bonds (i.e., crosslinks) in governing the pH-responsive behavior. Overall, MC/AgNPs hydrogels represent an innovative platform for the pH-triggered release of AgNPs in an alkaline milieu.
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Affiliation(s)
- Lorenzo Bonetti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- Correspondence:
| | - Andrea Fiorati
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Agnese D’Agostino
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Carlo Maria Pelacani
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
| | - Roberto Chiesa
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Silvia Farè
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Luigi De Nardo
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
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19
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Chemical Modification of Cellulose Using a Green Route by Reactive Extrusion with Citric and Succinic Acids. POLYSACCHARIDES 2022. [DOI: 10.3390/polysaccharides3010017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cellulose is a natural, unbranched, and fibrous homopolymer that is a major component in several agroindustrial residues. The aim of this study was to extract cellulose from oat hulls and then to modify it using a green route to obtain esterified cellulose through reaction with organic acids employing the reactive extrusion process, which is a process that presents some advantages, including low effluent generation, short reaction times, and it is scalable for large scale use. Citric (CA) and succinic (SA) acids were employed as esterifying agents in different concentrations (0, 5, 12.5, and 20%). Modified cellulose samples were characterized by their degree of substitution (DS), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (DRX), scanning electron microscopy (SEM), wettability, oil and water absorption capacities, and thermal stability. DS of modified samples ranged from 2.28 to 3.00, and FTIR results showed that the esterification occurred in all samples for both acids by observation of important bands at 1720 and 1737 cm−1 for samples modified with CA and SA, respectively. All modified samples presented increased hydrophobicity. The modification did not have an influence on the morphological structure or crystallinity pattern of all samples. This study proved to be possible to modify cellulose using a simple and ecofriendly process based on reactive extrusion with organic acids.
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20
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Roy S, Ghosh BD, Goh KL, Muthoka RM, Kim J. Modulation of interfacial interactions toward strong and tough cellulose nanofiber-based transparent thin films with antifogging feature. Carbohydr Polym 2022; 278:118974. [PMID: 34973788 DOI: 10.1016/j.carbpol.2021.118974] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 11/02/2022]
Abstract
Cross-linking is often performed to overcome the weak mechanical properties of native polymer films in order to expand their functional properties and applications. While this approach offers enhanced strength to the film, the film also suffers from low flexibility, low toughness and high brittleness. However, in view of the growing demand for strong and tough transparent thin films, this article reported our study to develop films made from cellulose nanofiber (CNF) via tailoring the interfacial bonding interactions through the application of glycerol (Gly) and glutaraldehyde (GA), which functioned as a plasticizer and cross-linking agent, respectively. Among the prepared films, the 10GA-8Gly-CNF film exhibited the best results with regard to the enhancement in the tensile strength (21.1%), Young's modulus (10.6%), elongation at break (100%) and toughness (32.7%), as compared to the native CNF film. Importantly, treating the surface of the film to radiofrequency oxygen plasma endowed the film with antifogging property, without compromising the optical clarity.
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Affiliation(s)
- Sunanda Roy
- GLA University, Mathura, Uttar Pradesh 281406, India; CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, 100, Inha-ro, Incheon 22212, South Korea.
| | - Barnali Dasgupta Ghosh
- Department of Chemistry, Birla Institute of Technology Mesra, Ranchi, Jharkhand, India 83521
| | - Kheng Lim Goh
- Newcastle University in Singapore, 172A Ang Mo Kio Avenue, Singapore 567739, Singapore
| | - Ruth M Muthoka
- CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, 100, Inha-ro, Incheon 22212, South Korea
| | - Jaehwan Kim
- CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, 100, Inha-ro, Incheon 22212, South Korea.
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21
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Liu Y, Li R, Liang F, Deng C, Seidi F, Xiao H. Fluorescent paper-based analytical devices for ultra-sensitive dual-type RNA detections and accurate gastric cancer screening. Biosens Bioelectron 2022; 197:113781. [PMID: 34781178 DOI: 10.1016/j.bios.2021.113781] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/29/2021] [Accepted: 11/08/2021] [Indexed: 12/18/2022]
Abstract
Demand on the quick screening of gastric cancer (GC) has significantly stimulated the development of biomarker sensing techniques. Herein, we report the novel fluorescent paper-based analytical devices (PADs) for detections of GC-related microRNA-21 (miRNA-21) and circular RNA from Hippocampus Abundant Transcript 1 gene (circRNA-HIAT1) with prominent reliability and sensitivity. The PADs, constructed by in-situ synthesis of blue-emissive carbon dots (CDs) and conjugations of probe DNAs, exhibit the superior uniformity and stability. In the presence of targets, rolling circle amplifications (RCA) are triggered to generate long DNA strands for the assemblies of green-/red-emissive labels. Consequently, remarkable blue-to-green and blue-to-red emission color transitions of the PADs are achieved, implementing the color-analysis of miRNA-21 and circRNA-HIAT1, respectively. Benefited from the efficient RCA, coupled with the drastic ratiometric fluorescent changes, the limit of detections (LODs) of PADs are found to be several fM with the upper limit of the linear detection range at 1 nM. More importantly, the fluorescent PADs possess excellent specificity, as well as anti-interference capability in biological settings, enabling their applications in accurate GC screening with plasma samples. Overall, the proposed fluorescent PADs are featured with robust sensing platform, facile signal readout, and exceptional dual-type RNA sensing performance, holding high potential in point-of-care testing (POCT).
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Affiliation(s)
- Yuqian Liu
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, China.
| | - Ruyi Li
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Fangyuan Liang
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Chao Deng
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Farzad Seidi
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, New Brunswick, E3B5A3, Canada.
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22
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Surface Modification of Cellulose from Oat Hull with Citric Acid Using Ultrasonication and Reactive Extrusion Assisted Processes. POLYSACCHARIDES 2021. [DOI: 10.3390/polysaccharides2020015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This study aimed to produce modified cellulose extracted from oat hulls by an esterification reaction with citric acid (CA) employing ultrasonication and reactive extrusion assisted processes. Modified samples were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (DRX), scanning electron microscopy (SEM), wettability, oil and water absorption capacities, water adsorption capacity, and thermal stability. From FTIR results it can be observed a new band for all modified samples at 1735 cm−1, confirming the esterification. The morphology and crystallinity pattern of fibers were not affected by esterification, and crystallinity indexes ranged from 43% (unmodified cellulose) to 44–49% in modified samples. Both groups of samples, obtained by ultrasonication and reactive extrusion, showed decreases in water absorption capacities (1.63–1.71 g/g) compared to unmodified cellulose (9.38 g/g). It was observed an increase in oil retention capacity from 1.80 g/g (unmodified cellulose) to 4.57–7.31 g/g after esterification, and also the modified samples presented higher affinity by a non-polar solvent in the wettability test. The new properties of modified cellulose expand its use in the industry and prove that ultrasonication and reactive extrusion can be used to obtain esterified cellulose, being eco-friendly, simple, and convenient processes with short reaction times.
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23
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Acetic acid-mediated cellulose-based carbons: Influence of activation conditions on textural features and carbon dioxide uptakes. J Colloid Interface Sci 2021; 594:745-758. [PMID: 33789186 DOI: 10.1016/j.jcis.2021.03.069] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/07/2021] [Accepted: 03/12/2021] [Indexed: 12/19/2022]
Abstract
In this work, we developed a simple methodology for producing highly porous carbons. Herein, we combined the hydrothermal method with chemical activation to fabricate cellulose-based, melamine modified porous carbons, using acetic acid as an additive. The preparation conditions including activation temperature, activation time, and melamine ratio were varied to obtain an optimized adsorbent exhibiting efficient textural features and maximized carbon dioxide (CO2) adsorption uptake. By varying the preparation conditions, high specific surface area (SSA) (1260-3019 m2 g-1), microporosity in the range of 0.21-1.13 cm3 g-1, and a well-developed porous structure was obtained. The optimized adsorbent exhibits an excellent CO2 adsorption uptake of 297.05 mg g-1 (6.75 mmol g-1) and 174.4 mg g-1 (3.96 mmol g-1) at 273 K and 298 K at 1 bar, respectively, due to the existence of ultra-micropores (<0.68 nm, < 0.81 nm), high SSA (3019 m2 g-1), and high nitrogen content (8%). Furthermore, the role of micropores in the CO2 adsorption process suggests that micropores between 0.68 nm and 1 nm exhibit high CO2 adsorption potential. Additionally, all synthesized carbons exhibited a high isosteric heat of adsorption (45 kJ mol-1) and a greater affinity for adsorbed CO2 species than nitrogen (N2) molecules. Thus, as-fabricated porous carbon adsorbents are an effective competitor for CO2 uptake applications to mitigate global warming.
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24
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Salihu R, Abd Razak SI, Ahmad Zawawi N, Rafiq Abdul Kadir M, Izzah Ismail N, Jusoh N, Riduan Mohamad M, Hasraf Mat Nayan N. Citric acid: A green cross-linker of biomaterials for biomedical applications. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110271] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Silva VC, Silva AMGS, Basílio JAD, Xavier JA, do Nascimento TG, Naal RMZG, del Lama MP, Leonelo LAD, Mergulhão NLON, Maranhão FCA, Silva DMW, Owen R, Duarte IFB, Bulhões LCG, Basílio ID, Goulart MOF. New Insights for Red Propolis of Alagoas-Chemical Constituents, Topical Membrane Formulations and Their Physicochemical and Biological Properties. Molecules 2020; 25:E5811. [PMID: 33317120 PMCID: PMC7763695 DOI: 10.3390/molecules25245811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 12/15/2022] Open
Abstract
The main objectives of this study were to evaluate the chemical constitution and allergenic potential of red propolis extract (RPE). They were evaluated, using high performance liquid chromatography (HPLC) and the release of β-hexosaminidase, respectively. A plethora of biologically active polyphenols and the absence of allergic responses were evinced. RPE inhibited the release of β-hexosaminidase, suggesting that the extract does not stimulate allergic responses. Additionally, the physicochemical properties and antibacterial activity of hydrogel membranes loaded with RPE were analyzed. Bio-polymeric hydrogel membranes (M) were obtained using 5% carboxymethylcellulose (M1 and M2), 1.0% of citric acid (M3) and 10% RPE (for all). Their characterization was performed using thermal analysis, Fourier transform infrared (FTIR), total phenolic content, phenol release test and, antioxidant activity through 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) and Ferric Reducing Antioxidant Power (FRAP). The latter appointed to the similar antioxidant capacity of the M1, M2 and M3. The degradation profiles showed higher thermostability to M3, followed by M2 and M1. The incorporation of RPE into the matrices and the crosslinking of M3 were evinced by FTIR. There were differences in the release of phenolic compounds, with a higher release related to M1 and lower in the strongly crosslinked M3. The degradation profiles showed higher thermostability to M3, followed by M2 and M1. The antibacterial activity of the membranes was determined using the disc diffusion assay, in comparison with controls, obtained in the same way, without RPE. The membranes elicited antibacterial activity against Staphylococcus aureus and Staphylococcus epidermidis, with superior performance over M3. The hydrogel membranes loaded with RPE promote a physical barrier against bacterial skin infections and may be applied in the wound healing process.
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Affiliation(s)
- Valdemir C. Silva
- Laboratory of Pharmaceutical Technology, Research Program Post-Graduation in Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-970, Brazil; (V.C.S.); (A.M.G.S.S.); (T.G.d.N.); (N.L.O.N.M.); (I.F.B.D.); (L.C.G.B.)
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (J.A.D.B.); (J.A.X.)
| | - Abiane M. G. S. Silva
- Laboratory of Pharmaceutical Technology, Research Program Post-Graduation in Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-970, Brazil; (V.C.S.); (A.M.G.S.S.); (T.G.d.N.); (N.L.O.N.M.); (I.F.B.D.); (L.C.G.B.)
| | - Jacqueline A. D. Basílio
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (J.A.D.B.); (J.A.X.)
| | - Jadriane A. Xavier
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (J.A.D.B.); (J.A.X.)
| | - Ticiano G. do Nascimento
- Laboratory of Pharmaceutical Technology, Research Program Post-Graduation in Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-970, Brazil; (V.C.S.); (A.M.G.S.S.); (T.G.d.N.); (N.L.O.N.M.); (I.F.B.D.); (L.C.G.B.)
| | - Rose M. Z. G. Naal
- Department of BioMolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto. Avenida do Café, s/n, Ribeirão Preto, São Paulo 14040-903, Brazil; (R.M.Z.G.N.); (M.P.d.L.); (L.A.D.L.)
| | - Maria Perpetua del Lama
- Department of BioMolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto. Avenida do Café, s/n, Ribeirão Preto, São Paulo 14040-903, Brazil; (R.M.Z.G.N.); (M.P.d.L.); (L.A.D.L.)
| | - Laila A. D. Leonelo
- Department of BioMolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto. Avenida do Café, s/n, Ribeirão Preto, São Paulo 14040-903, Brazil; (R.M.Z.G.N.); (M.P.d.L.); (L.A.D.L.)
| | - Naianny L. O. N. Mergulhão
- Laboratory of Pharmaceutical Technology, Research Program Post-Graduation in Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-970, Brazil; (V.C.S.); (A.M.G.S.S.); (T.G.d.N.); (N.L.O.N.M.); (I.F.B.D.); (L.C.G.B.)
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (J.A.D.B.); (J.A.X.)
| | - Fernanda C. A. Maranhão
- Institute of Biological Science and Health, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (F.C.A.M.); (D.M.W.S.)
| | - Denise M. W. Silva
- Institute of Biological Science and Health, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (F.C.A.M.); (D.M.W.S.)
| | - Robert Owen
- Division of Preventive Oncology, German Cancer Research Center, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany;
| | - Ilza F. B. Duarte
- Laboratory of Pharmaceutical Technology, Research Program Post-Graduation in Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-970, Brazil; (V.C.S.); (A.M.G.S.S.); (T.G.d.N.); (N.L.O.N.M.); (I.F.B.D.); (L.C.G.B.)
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (J.A.D.B.); (J.A.X.)
| | - Laisa C. G. Bulhões
- Laboratory of Pharmaceutical Technology, Research Program Post-Graduation in Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-970, Brazil; (V.C.S.); (A.M.G.S.S.); (T.G.d.N.); (N.L.O.N.M.); (I.F.B.D.); (L.C.G.B.)
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (J.A.D.B.); (J.A.X.)
| | - Irinaldo D. Basílio
- Laboratory of Pharmaceutical Technology, Research Program Post-Graduation in Pharmaceutical Sciences, Institute of Pharmaceutical Sciences, Federal University of Alagoas (UFAL), Maceió, Alagoas 57072-970, Brazil; (V.C.S.); (A.M.G.S.S.); (T.G.d.N.); (N.L.O.N.M.); (I.F.B.D.); (L.C.G.B.)
| | - Marília O. F. Goulart
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas 57072-970, Brazil; (J.A.D.B.); (J.A.X.)
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Swapnil SI, Datta N, Mahmud MM, Jahan RA, Arafat MT. Morphology, mechanical, and physical properties of wet‐spun cellulose acetate fiber in different solvent‐coagulant systems and in‐situ crosslinked environment. J Appl Polym Sci 2020. [DOI: 10.1002/app.50358] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Soham Irtiza Swapnil
- Department of Biomedical Engineering Bangladesh University of Engineering and Technology (BUET) Dhaka Bangladesh
| | - Nondita Datta
- Department of Biomedical Engineering Bangladesh University of Engineering and Technology (BUET) Dhaka Bangladesh
| | - Md Musavvir Mahmud
- Department of Biomedical Engineering Bangladesh University of Engineering and Technology (BUET) Dhaka Bangladesh
- Fischell Department of Bioengineering University of Maryland Maryland USA
| | - Rumana A. Jahan
- Centre for Advanced Research in Sciences (CARS) University of Dhaka Dhaka Bangladesh
| | - M. Tarik Arafat
- Department of Biomedical Engineering Bangladesh University of Engineering and Technology (BUET) Dhaka Bangladesh
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27
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Uyanga KA, Okpozo OP, Onyekwere OS, Daoud WA. Citric acid crosslinked natural bi-polymer-based composite hydrogels: Effect of polymer ratio and beta-cyclodextrin on hydrogel microstructure. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104682] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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28
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Bonetti L, De Nardo L, Variola F, Fare' S. Evaluation of the subtle trade-off between physical stability and thermo-responsiveness in crosslinked methylcellulose hydrogels. SOFT MATTER 2020; 16:5577-5587. [PMID: 32406462 DOI: 10.1039/d0sm00269k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Methylcellulose (MC) hydrogels, undergoing sol-gel reversible transition upon temperature changes, lend themselves to smart system applications. However, their reduced stability in aqueous environment and unsatisfactory mechanical properties limit the breadth of their possible applications. Here, a crosslinking strategy based on citric acid (CA) was developed: exploiting three crosslinking parameters (CA concentration, crosslinking time, and crosslinking temperature) by a design of experiment approach, optimized crosslinked MC hydrogels (MC-L, MC-M, MC-H) were obtained and characterized. Swelling tests in water revealed the effectiveness of CA crosslinking in modulating the water uptake of MC hydrogels. Both theoretical and experimental analyses showed an increase in the crosslinking density by the rationale selection of process parameters. The extent of sol-gel transition was assessed by swelling tests, Raman spectroscopy and rheological analyses. MC-M samples demonstrated to preserve their thermo-responsive behavior around their lower critical solution temperature (LCST), while showing increased stability and enhanced mechanical properties when compared to pristine MC hydrogels.
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Affiliation(s)
- Lorenzo Bonetti
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 22, 20133, Milan, Italy.
| | - Luigi De Nardo
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 22, 20133, Milan, Italy. and National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
| | - Fabio Variola
- Department of Mechanical Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Silvia Fare'
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 22, 20133, Milan, Italy. and National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
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29
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Old corrugated box (OCB)-based cellulose nanofiber-reinforced and citric acid-cross-linked TSP–guar gum composite film. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03138-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Comparison of acidic deep eutectic solvents in production of chitin nanocrystals. Carbohydr Polym 2020; 236:116095. [PMID: 32172897 DOI: 10.1016/j.carbpol.2020.116095] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/04/2020] [Accepted: 02/28/2020] [Indexed: 12/14/2022]
Abstract
Five different acidic deep eutectic solvents (DESs) composed of choline chloride and organic acids were applied to fabricate chitin nanocrystals (ChNCs). All DESs resulted in high transmittance and stable ChNCs suspensions with very high mass yield ranging from 78 % to 87.5 % under proper reaction conditions. The acidic DESs had a dual role in ChNCs fabrication, i.e. they promoted hydrolysis of chitin and acted as an acylation reagent. Physicochemical characterization of chitin revealed that the removal of amorphous area during DES treatments led to increased crystallinity of ChNCs and a dimension diversity correlated the DES used. The average diameter and length of individual ChNCs ranged from 42 nm to 49 nm and from 257 nm to 670 nm, respectively. The thermal stability of ChNCs was comparable to that of pristine chitin. Thus, acidic DESs showed to be non-toxic and environmentally benign solvents for production of functionalized chitin nanocrystals.
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31
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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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32
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Citric acid crosslinking of mucilage from Cydonia oblonga engenders a superabsorbent, pH-sensitive and biocompatible polysaccharide offering on-off swelling and zero-order drug release. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-2025-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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33
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Citric acid cross-linked glucuronoxylans: A pH-sensitive polysaccharide material for responsive swelling-deswelling vs various biomimetic stimuli and zero-order drug release. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Kumar R, Ghoshal G, Goyal M. Moth bean starch ( Vigna aconitifolia): isolation, characterization, and development of edible/biodegradable films. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2019; 56:4891-4900. [PMID: 31741513 PMCID: PMC6828871 DOI: 10.1007/s13197-019-03959-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/23/2019] [Accepted: 07/15/2019] [Indexed: 01/08/2023]
Abstract
In the current work, moth bean starch was separated from the moth bean seeds which were cultivated in the semi arid regions of Haryana and Rajasthan, India using alkali treatment technique and characterized. Isolated and purified moth bean starch comprised (12.89-20.37%) amylose, 0.8% protein, 0.4% ash, swelling index and solubility were 10.8-14.7% and 6.4-9.8% respectively. For wrapping application, starch was modified using citric acid as cross linking agent (1-7% w/w of total starch) and film was made using casting method, and investigated the influence of citric acid on the functional properties of the films such as moisture content, solubility, swelling index, water vapor permeability and mechanical property. Significant difference in the functional properties among native and modified moth bean starch films was noticed. Interactions among starch chains due to cross linking in the modified starch films were reported using FTIR spectra. Surface micrographs of both purfied starch granules and films were studied using scanning electron microscopy. From the outcomes, it was exhibited that obtained starch granules has range large to small size with distorted cylinder and oval shapes. While cross linked starch films showed compact, slightly rough and homogeneous surface. Tested modified moth bean starch films containing citric acid (CA) and sorbitol were utilized as wrapping films to improve the shelf life of fresh lemon. Outcomes showed that the film contains 5% CA could be most promising wrapping materials for lemon that enhanced the shelf life of lemon additionally up to 12 days.
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Affiliation(s)
- Raj Kumar
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, 160014 India
- Research Planning and Business Development, CSIR-NIIST, Pappanamcode, Trivendrum, India
| | - Gargi Ghoshal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, 160014 India
| | - Meenakshi Goyal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, 160014 India
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35
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Wang P, Aliheidari N, Zhang X, Ameli A. Strong ultralight foams based on nanocrystalline cellulose for high-performance insulation. Carbohydr Polym 2019; 218:103-111. [PMID: 31221311 DOI: 10.1016/j.carbpol.2019.04.059] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/16/2019] [Accepted: 04/16/2019] [Indexed: 11/16/2022]
Abstract
Environmentally friendly, sustainable, and high-performance thermal insulators are in high demand. Petroleum-based insulator foams usually have high thermal conductivity and pose health hazards. Here, we report ultralight composite foams that are highly strong, elastic, and super-insulating. The foams are composed of nanocrystalline cellulose (NCC) (74 wt%), polyvinyl alcohol (7.5 wt%), and a crosslinking agent (18.5 wt%). The fabrication process is simple and uses only water. The composite foams exhibit an elastic strain of ˜13% at a modulus of 250 K Pa and a stress of 73 K Pa at 50% strain (100+ and 18 times, respectively, higher than those of pure NCC foam); both exceed the values of reported nanocellulose-based foams with no reinforcement. The foams exhibit a thermal conductivity of 0.027 Wm-1 K-1, which is superior to those of traditional insulating materials. The structural integrity is also preserved after burning. Our results show that NCC-based materials can be engineered towards high-performance insulation applications.
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Affiliation(s)
- Peipei Wang
- Bioproducts, Sciences and Engineering Laboratory, Voiland School of Chemical Engineering and Bioengineering, Washington State University, Richland, WA, 99354, United States
| | - Nahal Aliheidari
- Advanced Composites Laboratory, School of Mechanical and Materials Engineering, Washington State University, 2710 Crimson Way, Richland, WA, 99354, United States
| | - Xiao Zhang
- Bioproducts, Sciences and Engineering Laboratory, Voiland School of Chemical Engineering and Bioengineering, Washington State University, Richland, WA, 99354, United States; Pacific Northwest National Laboratory, Richland, WA, 99354, United States.
| | - Amir Ameli
- Advanced Composites Laboratory, School of Mechanical and Materials Engineering, Washington State University, 2710 Crimson Way, Richland, WA, 99354, United States.
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36
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Bernard FL, Rodrigues DM, Polesso BB, Chaban VV, Serefin M, Dalla Vecchia F, Einloft S. DEVELOPMENT OF INEXPENSIVE CELLULOSE-BASED SORBENTS FOR CARBON DIOXIDE. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2019. [DOI: 10.1590/0104-6632.20190361s20170182] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Franciele L. Bernard
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
| | | | | | | | - Marcus Serefin
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
| | | | - Sandra Einloft
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
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37
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Alqahtani MS, Alqahtani A, Al-Thabit A, Roni M, Syed R. Novel lignin nanoparticles for oral drug delivery. J Mater Chem B 2019. [DOI: 10.1039/c9tb00594c] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Lignin nanoparticles (LNPs) were prepared with the objective of evaluating their application as a novel oral drug delivery system.
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Affiliation(s)
- Mohammed S. Alqahtani
- Department of Pharmaceutics
- College of Pharmacy
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - Ali Alqahtani
- Department of Pharmacognosy
- College of Pharmacy
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - Abdullah Al-Thabit
- Department of Medicine
- King Faisal Specialist Hospital and Research Center
- Saudi Arabia
| | - Monzurul Roni
- Department of Pharmaceutical Sciences
- School of Pharmacy
- Hampton University
- Hampton
- USA
| | - Rabbani Syed
- Department of Pharmaceutics
- College of Pharmacy
- King Saud University
- Riyadh 11451
- Saudi Arabia
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38
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Galvis-Sánchez AC, Castro MCR, Biernacki K, Gonçalves MP, Souza HK. Natural deep eutectic solvents as green plasticizers for chitosan thermoplastic production with controlled/desired mechanical and barrier properties. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.04.026] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Mangiante G, Alcouffe P, Gaborieau M, Zeno E, Petit-Conil M, Bernard J, Charlot A, Fleury E. Biohybrid cellulose fibers: Toward paper materials with wet strength properties. Carbohydr Polym 2018; 193:353-361. [DOI: 10.1016/j.carbpol.2018.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/27/2018] [Accepted: 04/01/2018] [Indexed: 10/17/2022]
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40
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Zhuang C, Shi C, Tao F, Cui Y. Honeycomb structural composite polymer network of gelatin and functional cellulose ester for controlled release of omeprazole. Int J Biol Macromol 2017; 105:1644-1653. [DOI: 10.1016/j.ijbiomac.2017.01.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 01/04/2017] [Indexed: 01/21/2023]
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41
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Capanema NSV, Mansur AAP, de Jesus AC, Carvalho SM, de Oliveira LC, Mansur HS. Superabsorbent crosslinked carboxymethyl cellulose-PEG hydrogels for potential wound dressing applications. Int J Biol Macromol 2017; 106:1218-1234. [PMID: 28851645 DOI: 10.1016/j.ijbiomac.2017.08.124] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 08/15/2017] [Accepted: 08/22/2017] [Indexed: 11/24/2022]
Abstract
This study focused on the synthesis and comprehensive characterization of environmentally friendly hydrogel membranes based on carboxymethyl cellulose (CMC) for wound dressing and skin repair substitutes. These new CMC hydrogels were prepared with two degrees of functionalization (DS=0.77 and 1.22) and chemically crosslinked with citric acid (CA) for tuning their properties. Additionally, CMC-based hybrids were prepared by blending with polyethylene glycol (PEG, 10wt.%). The results demonstrated that superabsorbent hydrogels (SAP) were produced with swelling degree typically ranging from 100% to 5000%, which was significantly dependent on the concentration of CA crosslinker and the addition of PEG as network modifier. The spectroscopical characterizations indicated that the mechanism of CA crosslinking was mostly associated with the chemical reaction with CMC hydroxyl groups and that PEG played an important role on the formation of a hybrid polymeric network. These hydrogels presented very distinct morphological features depended on the degree of crosslinking and the surface nanomechanical properties (e.g., elastic moduli) were drastically affected (from approximately 0.08GPa to 2.0GPa) due to the formation of CMC-PEG hybrid nanostructures. These CMC-based hydrogels were cytocompatible considering the in vitro cell viability responses of over 95% towards human embryonic kidney cells (HEK293T) used as model cell line.
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Affiliation(s)
- Nádia S V Capanema
- Center of Nanoscience, Nanotechnology and Innovation - CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, Brazil
| | - Alexandra A P Mansur
- Center of Nanoscience, Nanotechnology and Innovation - CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, Brazil
| | - Anderson C de Jesus
- Center of Nanoscience, Nanotechnology and Innovation - CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, Brazil
| | - Sandhra M Carvalho
- Center of Nanoscience, Nanotechnology and Innovation - CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, Brazil
| | | | - Herman S Mansur
- Center of Nanoscience, Nanotechnology and Innovation - CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, Brazil.
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42
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Hakalahti M, Mautner A, Johansson LS, Hänninen T, Setälä H, Kontturi E, Bismarck A, Tammelin T. Direct Interfacial Modification of Nanocellulose Films for Thermoresponsive Membrane Templates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2923-2927. [PMID: 26812620 DOI: 10.1021/acsami.5b12300] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This letter proposes a strategy to construct tunable films combining the physical characteristics of cellulose nanofibrils and smart polymers for membrane applications. A functional membrane template was obtained by first fabricating a water stable film from cellulose nanofibrils and subsequently surface grafting it with a thermoresponsive polymer, poly(N-isopropylacrylamide). The behavior of the membrane template was dependent on temperature. The increment in slope of relative water permeance around the lower critical solution temperature of poly(N-isopropylacrylamide) increased from 18 to 100% upon polymer attachment. Although the membrane template essentially consisted of wood-based materials, the benefits of smart synthetic polymers were achieved.
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Affiliation(s)
- Minna Hakalahti
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
| | - Andreas Mautner
- Polymer & Composite Engineering (PaCE) Group, Institute for Materials Chemistry & Research, University of Vienna , Währingerstrasse 42, A-1090 Vienna, Austria
- Polymer & Composite Engineering (PaCE) Group, Dept. of Chemical Engineering, Imperial College London , South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Leena-Sisko Johansson
- Department of Forest Products Technology, School of Chemical Technology, Aalto University , 02150 Espoo, Finland
| | - Tuomas Hänninen
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
| | - Harri Setälä
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
| | - Eero Kontturi
- Department of Forest Products Technology, School of Chemical Technology, Aalto University , 02150 Espoo, Finland
| | - Alexander Bismarck
- Polymer & Composite Engineering (PaCE) Group, Institute for Materials Chemistry & Research, University of Vienna , Währingerstrasse 42, A-1090 Vienna, Austria
- Polymer & Composite Engineering (PaCE) Group, Dept. of Chemical Engineering, Imperial College London , South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Tekla Tammelin
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
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43
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Riccardi CM, Mistri D, Hart O, Anuganti M, Lin Y, Kasi RM, Kumar CV. Covalent interlocking of glucose oxidase and peroxidase in the voids of paper: enzyme–polymer “spider webs”. Chem Commun (Camb) 2016; 52:2593-6. [DOI: 10.1039/c6cc00037a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A modular, general method for trapping enzymes within the voids of paper, without chemical activation of cellulose, is reported.
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Affiliation(s)
- C. M. Riccardi
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
- Institute of Materials Science
| | - D. Mistri
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
| | - O. Hart
- Molecular & Cell Biology, University of Connecticut
- Storrs
- USA
| | - M. Anuganti
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
- Institute of Materials Science
| | - Y. Lin
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
- Institute of Materials Science
| | - R. M. Kasi
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
- Institute of Materials Science
| | - C. V. Kumar
- Department of Chemistry
- University of Connecticut
- Storrs
- USA
- Institute of Materials Science
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