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Verma D, Okhawilai M, Subramani K, Chandrasekaran K, Kasemsiri P, Uyama H. Cefixime loaded bare and functionalized halloysite nanocarriers and their biomedical applications. Environ Res 2024; 252:118927. [PMID: 38631467 DOI: 10.1016/j.envres.2024.118927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/25/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024]
Abstract
Effective drug delivery for is the foremost requirement for the complete recovery of the disease. Nanomedicine and nanoengineering has provided so many spaces and ideas for the drug delivery design, whether controlled, targeted, or sustained. Different types of nanocarriers or nanoparticles are aggressively designed for the drug delivery applications. Clay minerals are identified as a one of the potential nanocarrier for the drug delivery. Owing to their biocompatibility and very low cytotoxicity, clay minerals showing effective therapeutic applications. In the present investigation, clay mineral, i.e., Halloysite nano tubes are utilized as a nanocarrier for the delivery of antibiotic cefixime (CFX), a third-generation cephalosporin. The HNT was first functionalized with the sulfuric acid and then further treated with the 3-(aminopropyl)triethoxysilane (APTES). The drug is loaded on three different classifications of HNTs, i.e., Bare-CFX-HNT, Acid-CFX-HNT, and APTES-CFX-HNT and their comparative analysis is established. Different characterization techniques such as X-ray diffractometry (XRD), Fourier transform infra-red (FT-IR), Transmission electron microscopy TEM), Brunauer-Emmett-Teller (BET), adsorption studies, and Thermogravimetric analysis (TGA) were performed to evaluate their chemical, structural, morphological, and thermal properties. TGA confirmed the encapsulation efficiency of Bare-CFX-HNT, Acid-CFX-HNT, and APTES-CFX-HNT as 42.65, 52.19, and 53.43%, respectively. Disk diffusion and MTT assay confirmed that the drug loaded HNTs have potential antibacterial activities and less cytotoxicity. The adsorption capacity of CFX with different HNTs are evaluated and Different adsorption and kinetic models have been discussed. Drug release studies shows that APTES-CFX-HNT showing sustained release of cefixime as compared to Bare-CFX-HNT and Acid-CFX-HNT.
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Affiliation(s)
- Deepak Verma
- International Graduate Program of Nanoscience and Technology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Manunya Okhawilai
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Karthik Subramani
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | | | - Pornnapa Kasemsiri
- Sustainable Infrastructure Research and Development Center, Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan
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Verma D, Okhawilai M, Senthilkumar N, Subramani K, Incharoensakdi A, Raja GG, Uyama H. Augmentin loaded functionalized halloysite nanotubes: A sustainable emerging nanocarriers for biomedical applications. Environ Res 2024; 242:117811. [PMID: 38043896 DOI: 10.1016/j.envres.2023.117811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Clay minerals such as Halloysite nanotubes (HNTs), abundantly available green nanomaterial, exhibit a significant advantage in biomedical applications such as drug delivery, antibacterial and antimicrobials, tissue engineering or regeneration, etc. Because of the mesoporous structure and high absorbability, HNTs exhibit great potential as a nanocarrier in drug delivery applications. The sulfuric acid treatment enhances the surface area of the HNTs and thereby improves their drug-loading capacity by enlarging their lumen space/inner diameter. In the present investigation, based on the literature that supports the efficacy of drug loading after acid treatment, a dual treatment was performed to functionalize the HNTs surface. First, the HNTs were etched and functionalized using sulfuric acid. The acid-functionalized HNTs underwent another treatment using (3-aminopropyl) triethoxysilane (APTES) to better interact the drug molecules with the HNTs surfaces for efficient drug loading. Augmentin, a potential drug molecule of the penicillin group, was used for HNTs loading, and their antibacterial properties, cytotoxicity, and cumulative drug release (%) were evaluated. Different characterization techniques, such as X-ray diffractometer (XRD) and Fourier Transform Infra-Red (FT-IR), confirm the loading of Augmentin to the APTES@Acid HNTs. TEM images confirm the effective loading of the drug molecule with the HNTs. The drug encapsulation efficiency shows 40.89%, as confirmed by the Thermogravimetric Analysis (TGA). Also, the Augmentin-loaded APTES@Acid HNTs exhibited good antibacterial properties against E. coli and S. aureus and low cytotoxicity, as confirmed by the MTT assay. The drug release studies confirmed the sustainable release of Augmentin from the APTES@Acid HNTs. Hence, the treated HNTs can be considered as a potential nanocarrier for effectively delivering Augmentin and promoting enhanced therapeutic benefits.
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Affiliation(s)
- Deepak Verma
- International Graduate Program of Nanoscience and Technology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Manunya Okhawilai
- International Graduate Program of Nanoscience and Technology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand; Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Nangan Senthilkumar
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Karthik Subramani
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Aran Incharoensakdi
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Academy of Science, Royal Society of Thailand, Bangkok, 10300, Thailand
| | - G Ganesh Raja
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, 1000000, Chile
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan
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Jaroenthai N, Srikhao N, Kasemsiri P, Okhawilai M, Theerakulpisut S, Uyama H, Chindaprasirt P. Optimization of rapid self-healing and self-adhesive gluten/guar gum crosslinked gel for strain sensors and electronic devices. Int J Biol Macromol 2023; 253:127401. [PMID: 37827400 DOI: 10.1016/j.ijbiomac.2023.127401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
In this study, a smart strain sensor based on gluten/guar gum (GG) copolymer containing a combination of additives was developed. The mix proportions of strain sensors were designed using Taguchi method coupled with Grey relational analysis. L16 orthogonal array with three factors, viz. tannic acid (TA), glycerol and sodium chloride (NaCl) at four-levels each was optimized. The addition of TA substantially enhanced tensile strength, self-adhesion ability and conductivity. The self-adhesion ability could also be improved by adding NaCl in range of 0-5 wt%. The presence of glycerol in strain sensors could reduce the self-healing time which was found in the range of 28.75-150 s. In addition, the incorporation of glycerol into gel also improved stretchability of strain sensors. The best mix proportion of strain sensor was found to be 3.75 wt% TA, 30 vol% glycerol and 5 wt% NaCl. The best mixture of stain sensor showed the highest gauge factor (GF) of 0.61 % at a stretchability of 665 % and rapid self-healing at 70 s. This strain sensor could be applied to monitor human limb movements in a wide temperature range from -20 °C to 50 °C. Furthermore, the obtained gel was successfully used as electronic devices and self-powered sensors.
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Affiliation(s)
- Nattakan Jaroenthai
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Natwat Srikhao
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pornnapa Kasemsiri
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Manunya Okhawilai
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok 10330, Thailand
| | - Somnuk Theerakulpisut
- Energy Management and Conservation Office, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Prinya Chindaprasirt
- Sustainable Infrastructure Research and Development Center, Department of Civil Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand; Academy of Science, Royal Society of Thailand, Dusit, Bangkok 10300, Thailand
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Nangan S, Natesan T, Sukmas W, Okhawilai M, Justice Babu K, Tsuppayakorn-Aek P, Bovornratanaraks T, Wongsalam T, Vimal V, Uyama H, Al-Enizi AM, Kansal L, Sehgal SS. Waste plastics derived nickel-palladium alloy filled carbon nanotubes for hydrogen evolution reaction. Chemosphere 2023; 341:139982. [PMID: 37648169 DOI: 10.1016/j.chemosphere.2023.139982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/18/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023]
Abstract
Carbon nanotubes (CNTs) composed of bimetallic nickel-palladium (NiPd) nanoparticles encapsulated in graphitic carbon shells (NdPd@CNT) are prepared by the chemical vapour deposition method using waste polyethylene terephthalate (PET) plastic carbon sources and NiPd-decorated carbon sheets (NiPd@C) catalyst. The characterization results reveal that the face-centered cubic crystalline (fcc)-structured NiPd bimetallic alloy nanoparticles are encased by thin carbon nanotubes. The bimetallic synergism of NiPd nanoparticles actuates the outer CNT layers and accelerates the electrical conductivity, stimulating the electrochemical activity toward an effective hydrogen evolution reaction (HER). By virtue of the collective individualities of highly conductive aligned carbon walls and bimetallic active sites, the NiPd@CNT-equipped HER delivers a minimum overpotential of 87 mV and a Tafel slope value of 95 mV dec-1. The existing intact contact between NiPd and CNT facilitates continuous electron and ion transportation and firm stability toward long-term hydrogen production in HER. Notably, the NiPd@CNT reported here produces excellent electrochemical activity with minimal charge transference resistance, substantiating the efficacy of NiPd@CNT for futuristic green hydrogen production.
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Affiliation(s)
- Senthilkumar Nangan
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thirumalaivasan Natesan
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMTAS), Saveetha University, Chennai, 600077, Tamilnadu, India
| | - Wiwittawin Sukmas
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Manunya Okhawilai
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
| | | | - Prutthipong Tsuppayakorn-Aek
- Extreme Conditions Physics Research Laboratory and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thiti Bovornratanaraks
- Extreme Conditions Physics Research Laboratory and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Tawan Wongsalam
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Vrince Vimal
- Computer Science and Engineering, Graphic Era Deemed to be University, Dehradun, 248002, India
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan
| | - Abdullah M Al-Enizi
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Lavish Kansal
- School Electronics and Electrical Engineering, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Satbir S Sehgal
- Division of Research Innovation, Uttaranchal University, Dehradun, India
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5
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Verma D, Okhawilai M, Goh KL, Thakur VK, Senthilkumar N, Sharma M, Uyama H. Sustainable functionalized chitosan based nano-composites for wound dressings applications: A review. Environ Res 2023; 235:116580. [PMID: 37474094 DOI: 10.1016/j.envres.2023.116580] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Abstract
Functionalized chitosan nanocomposites have been studied for wound dressing applications due to their excellent antibacterial and anti-fungal properties. Polysaccharides show excellent antibacterial and drug-release properties and can be utilized for wound healing. In this article, we comprise distinct approaches for chitosan functionalization, such as photosensitizers, dendrimers, graft copolymerization, quaternization, acylation, carboxyalkylation, phosphorylation, sulfation, and thiolation. The current review article has also discussed brief insights on chitosan nanoparticle processing for biomedical applications, including wound dressings. The chitosan nanoparticle preparation technologies have been discussed, focusing on wound dressings owing to their targeted and controlled drug release behavior. The future directions of chitosan research include; a) finding an effective solution for chronic wounds, which are unable to heal completely; b) providing effective wound healing solutions for diabetic wounds and venous leg ulcers; c) to better understanding the wound healing mechanism with such materials which can help provide the optimum solution for wound dressing; d) to provide an improved treatment option for wound healing.
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Affiliation(s)
- Deepak Verma
- International Graduate Program of Nanoscience and Technology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Manunya Okhawilai
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Kheng Lim Goh
- Faculty of Science, Agriculture and Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK; Newcastle University in Singapore, 567739, Singapore
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Barony Campus, Parkgate, Dumfries DG1 3NE, United Kingdom
| | - Nangan Senthilkumar
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Mohit Sharma
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, 138634, Republic of Singapore
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan
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6
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Likitaporn C, Okhawilai M, Senthilkumar N, Wongsalam T, Tanalue N, Kasemsiri P, Qin J, Uyama H. Zn salts incorporated polyurethane/polyacrylonitrile electrospinning fiber membrane for high porosity polymer electrolyte in Zn ion battery. Sci Rep 2023; 13:16774. [PMID: 37798401 PMCID: PMC10556048 DOI: 10.1038/s41598-023-43962-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/30/2023] [Indexed: 10/07/2023] Open
Abstract
So far, a large variety of polymer molecule architectures have been explored in the electrolyte field. Polymer electrolytes have gathered research efforts as an interesting alternative to conventional liquid electrolytes due to their advantages of low probability of leakage and low volatility of liquid solvent, lightweight, flexibility, inertness, high durability, and thermal stability. In this work, a polymer electrolyte developed from a polyurethane/polyacrylonitrile (PU/PAN) electrospinning fiber membrane was added with different zinc (Zn) salts, namely, Zn(CH3CO2)2, ZnSO4, and Zn(OTf)2. The samples with the Zn salt presented many different properties; especially, the high Zn(OTf)2 sample showed gradually bundle morphology in its structure. Characterization revealed improved properties in contact angle, water uptake, and thermal resistance. Namely, the 15 wt% Zn(OTf)2) sample exhibited an outstandingly high ionic conductivity of 3.671 mS cm-1, which is 10 times higher than that of the neat PU/PAN membrane.
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Affiliation(s)
- Chutiwat Likitaporn
- Nanoscience and Technology Interdisciplinary Program, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Manunya Okhawilai
- Nanoscience and Technology Interdisciplinary Program, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand.
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand.
- Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Nangan Senthilkumar
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Tawan Wongsalam
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nattapon Tanalue
- Multidisciplinary Program in Petrochemistry and Polymer Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pornnapa Kasemsiri
- Sustainable Infrastructure Research and Development Center and Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Jiaqian Qin
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan
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Dong J, Li Y, Wang X, Liu Y, Ren K, Liu X, Zhang H, Li Z, Han X, Uyama H, Li Q. Microinjection Molded Biopolymeric Airway Stent with Antibacterial and Anti-Hyperplastic Properties. Macromol Biosci 2023; 23:e2300113. [PMID: 37326455 DOI: 10.1002/mabi.202300113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/18/2023] [Indexed: 06/17/2023]
Abstract
Central airway stenosis is a condition that the diameter of the trachea or main bronchus shrinkage is caused by external compression or internal tissue hyperplasia, which can cause difficulty breathing, asphyxia, and even death. Airway stenting is an easy way to restore the patency of the central airway, but airway stents commonly used in clinical practice can lead to complications such as mucus plugging, bacterial infection, and granulation tissue hyperplasia. Moreover, the non-degradable characteristic makes it requires a second operation to remove, which has the potential to cause tissue damage. In this study, a biodegradable airway stent is fabricated by microinjection molding using the bioelastomer of poly (L-lactide-co-ε-caprolactone) as the matrix material. The airway stent has excellent mechanical properties and an appropriate degradation rate. The hydrophilic surface of the airway stent can inhibit mucus plugging. The loading of silver nanoparticles and cisplatin endows the stent with antibacterial and anti-hyperplastic functions. In vitro and in vivo experiments demonstrate that this study provides an antibacterial and anti-hyperplastic biodegradable airway stent with elastic properties to avoid secondary removal operation and reduce complications associated with mucus plugging, bacterial infection, and granulation tissue hyperplasia.
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Affiliation(s)
- Jiahui Dong
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, China
- Department of Applied Chemistry, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yahua Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xiaofeng Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Yajing Liu
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Kewei Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Engineering Technology Research Center for Minimally Invasive Interventional Tumors of Henan Province, Zhengzhou, 450052, China
| | - Xuedi Liu
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Han Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Zongming Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
| | - Hiroshi Uyama
- Department of Applied Chemistry, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Qian Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, China
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Roopsung N, Sugawara A, Hsu YI, Asoh TA, Uyama H. Cellulose Nanocrystal-Based Gradient Hydrogel Actuators with Controllable Bending Properties. Macromol Rapid Commun 2023; 44:e2300205. [PMID: 37335985 DOI: 10.1002/marc.202300205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/07/2023] [Indexed: 06/21/2023]
Abstract
Stimuli-responsive hydrogel actuators are being increasingly used in microtechnology, but typical bilayer hydrogel actuators have significant drawbacks due to weak adhesive interface between the two layers. In this study, thermoresponsive single-layer hydrogel actuators are produced by generating a gradient distribution of cellulose nanocrystals (CNCs) in a poly(N-isopropylacrylamide) (PNIPAAm) hydrogel network by electrophoresis. Tunable bending properties of the composite hydrogels, such as the thermoresponsive bending speed and angle, are realized by varying the electrophoresis time, applied voltage, and CNC concentration. By varying these conditions, the gradient distribution of the CNCs can be optimized, leading to fast bending and large bending angles of the hydrogels. Bending properties are attributed to the gradient distribution of CNCs causing different deswelling rates across the hydrogel network owing to reinforcing effects. Bending ability is also influenced by differences in the CNC dimensions based on the sources of cellulose, which determine the rigidity of the CNC-rich layer of the polymer composite. It is thus shown that thermoresponsive single-layer gradient hydrogels with tunable bending properties can be realized.
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Affiliation(s)
- Nontarin Roopsung
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Akihide Sugawara
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
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9
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Du P, Wang J, Hsu YI, Uyama H. Bio-Inspired Homogeneous Conductive Hydrogel with Flexibility and Adhesiveness for Information Transmission and Sign Language Recognition. ACS Appl Mater Interfaces 2023; 15:23711-23724. [PMID: 37145870 DOI: 10.1021/acsami.3c02105] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The wearable electronic technique is increasingly becoming an effective approach to overcoming the communication obstacles between signers and non-signers. However, the efficacy of conducting hydrogels currently proposed as flexible sensor devices is hindered by their poor processability and matrix mismatch, which frequently results in adhesion failure at the combined interfaces and deterioration of mechanical and electrochemical performance. Herein, we propose a hydrogel composed of a rigid matrix in which the hydrophobic and aggregated polyaniline was homogeneously embedded, while quaternate-functionalized nucleobase moieties endowed the flexible network with adhesiveness. Accordingly, the resulting hydrogel with chitosan-graft-polyaniline (chi-g-PANI) copolymers exhibited a promising conductivity (4.8 S·m-1) because of the uniformly dispersed polyaniline components and a high strain strength (0.84 MPa) because of the chain entanglement of chitosan after soaking. In addition, the modified adenine molecules not only realized synchronization in improving the stretchability (up to 1303%) and exhibiting a skin-like elastic modulus (≈184 kPa), but also provided a durable interfacial contact with various materials. The hydrogel was further fabricated into a strain-monitoring sensor for information encryption and sign language transmission based on its sensing stability and strain sensitivity of up to 2.77. The developed wearable sign language interpreting system provides an innovative strategy to assist auditory or speech-impaired people in communicating with non-signers using visual-gestural patterns including body movements and facial expressions.
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Affiliation(s)
- Peng Du
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Juan Wang
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
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10
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Cao M, Shu Y, Bai Q, Li C, Chen B, Shen Y, Uyama H. Design of biomass-based N, S co-doped porous carbon via a straightforward post-treatment strategy for enhanced CO 2 capture performance. Sci Total Environ 2023; 884:163750. [PMID: 37121326 DOI: 10.1016/j.scitotenv.2023.163750] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/22/2023] [Accepted: 04/22/2023] [Indexed: 05/06/2023]
Abstract
Biomass-based adsorbents are considered to have great potential for CO2 capture due to their low cost, high efficiency and exceptional sustainability. The aim of this work is to design a simple method for preparing biomass-based adsorbents with abundant active sites and large numbers of narrow micropores, so as to enhance CO2 capture performance. Herein, N, S co-doped porous carbon (NSPC) was created utilizing walnut shell-based microporous carbon (WSMC) as the main framework and thiourea as N/S dopant through physical grinding and post-treatment process at a moderate temperature without any other reagents and steps. By altering the post-treatment parameters, a series of porous carbons with varying physico-chemical properties were prepared to discuss the roles of microporosity and N/S functional groups in CO2 adsorption. NSPC with narrow micropore volume of 0.74 cm3 g-1, N content of 4.89 % and S contents of 0.71 % demonstrated the highest CO2 adsorption capacity of 7.26 (0 °C) and 5.51 mmol g-1 (25 °C) at 1 bar. Meanwhile, a good selectivity of binary gas mixture CO2/N2 (15/85) of 29.72 and outstanding recyclability after ten cycles of almost 100 % adsorption capacity retention were achieved. The proposed post-treatment method was beneficial in maintaining the narrow micropores and forming N/S active sites, which together improve the CO2 adsorption performance of NSPC. The novel NSPC displays amazing CO2 adsorption characteristics, and the practical, affordable synthetic approach exhibits significant potential to produce highly effective CO2 adsorbents on a broad scale.
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Affiliation(s)
- Meng Cao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China
| | - Yu Shu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China; College of Food Science and Technology, Northwest University, Xi'an 710069, PR China.
| | - Qiuhong Bai
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China
| | - Cong Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China
| | - Bang Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China
| | - Yehua Shen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, PR China.
| | - Hiroshi Uyama
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, PR China; Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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11
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Harada N, Uyama H. Surface modification of cellulose with succinic anhydride in dimethyl sulfoxide using potassium carbonate as a catalyst. Carbohydr Res 2023; 528:108812. [PMID: 37126971 DOI: 10.1016/j.carres.2023.108812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/05/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Cellulose succinates (CSs) having degrees of substitution (DSs) ranging from 0.78 to 2.77 were successfully obtained by reacting cellulose with succinic anhydride (SA) in dimethyl sulfoxide at room temperature using a small amount of inexpensive solid potassium carbonate as a catalyst. Interestingly, CSs with higher DS values were obtained with a much smaller amount of catalyst than previously reported. Moreover, it is possible to control the DS by tailoring the reaction time and mass ratio of cellulose/SA. The hydroxyl groups at the C-6, C-2, and C-3 positions were the main esterification positions. In this process, most of the raw materials are either incorporated into the product or are recoverable. The E-factor, which reflects the sustainability of a given process, was demonstrated to be reduced by 93% by recovering the raw materials.
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Affiliation(s)
- Nobuyuki Harada
- Nippon Shokubai Research Alliance Laboratories, 2-1, Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan.
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12
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Xie Q, Pan M, Wang Z, Si W, Zhang R, Shu Y, Sun G, Jing Q, Shen Y, Uyama H. Enhancing the oxygen reduction activity by constructing nanocluster-scaled Fe 2O 3/Cu interfaces. Nanoscale 2023; 15:4388-4396. [PMID: 36745395 DOI: 10.1039/d2nr06941e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Interface engineering is a promising strategy to enhance the catalytic performance of electrocatalysts for the oxygen reduction reaction (ORR). However, it is still a challenge to modulate the size into a suitable range (e.g., nanocluster-scale) to make the most of the interface. Moreover, the explicit mechanism of the interface for enhancing catalytic performance is still elusive. Herein, a model catalyst (FeCu@NC) loaded with nanocluster-scaled Fe2O3/Cu interfaces was prepared by modulating the metal components of the precursor to explore the enhancement of interface engineering for the ORR. Benefiting from the synergistic effect of the strong interfacial coupling effects of Fe2O3/Cu and optimized microstructure, FeCu@NC exhibited superior ORR activity and zinc-air battery performance. Experimental and theoretical calculations revealed that the presence of the Fe2O3/Cu interface breaks the traditional cognition to endow the Cu atoms (intrinsically inferior for the ORR) with a slight positive charge, which serves as the active sites for the ORR. This study provides a novel insight into the design of advanced electrocatalysts for the ORR by interface engineering.
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Affiliation(s)
- Qianjie Xie
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Meiling Pan
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology, Xinjiang University, No. 777 Huarui Road, 830046 Urumqi, China.
| | - Zheng Wang
- Xi'an Rare Metal Materials Research Institute Co., Ltd., No. 96 Weiyang Road, 710016 Xi'an, China.
| | - Wenfang Si
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Ruiyi Zhang
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Yu Shu
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Guodong Sun
- Xi'an Rare Metal Materials Research Institute Co., Ltd., No. 96 Weiyang Road, 710016 Xi'an, China.
| | - Qun Jing
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology, Xinjiang University, No. 777 Huarui Road, 830046 Urumqi, China.
| | - Yehua Shen
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
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13
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Zhang G, Bai Q, Wang X, Li C, Uyama H, Shen Y. Preparation and Mechanism Research of Walnut Shell-based Hierarchical Porous Carbon for Supercapacitor. BCSJ 2023. [DOI: 10.1246/bcsj.20220314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Guoyan Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi’an, Shaanxi 710127, China
| | - Qiuhong Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi’an, Shaanxi 710127, China
| | - Xiaoyan Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi’an, Shaanxi 710127, China
| | - Cong Li
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi’an, Shaanxi 710127, China
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Yehua Shen
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi’an, Shaanxi 710127, China
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14
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Jia Y, Hsu YI, Uyama H. A starch-based, crosslinked blend film with seawater-specific dissolution characteristics. Carbohydr Polym 2023; 299:120181. [PMID: 36876796 DOI: 10.1016/j.carbpol.2022.120181] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 11/07/2022]
Abstract
Existing biodegradable plastics may not be ideal replacements of petroleum-based single-use plastics owing to their slow biodegradation in seawater. To address this issue, a starch-based blend film with different disintegration/dissolution speeds in freshwater and seawater was prepared. Poly(acrylic acid) segments were grafted onto starch; a clear and homogenous film was prepared by blending the grafted starch with poly(vinyl pyrrolidone) (PVP) by solution casting. After drying, the grafted starch was crosslinked with PVP by hydrogen bonds, owing to which the water stability of the film is higher than that of unmodified starch films in fresh water. In seawater, the film dissolves quickly as a result of disruption of the hydrogen bond crosslinks. This technique balances degradability in marine environment and water resistance in everyday environment, provides an alternative route to mitigate marine plastic pollution and could be potentially useful for single-use applications in different fields such as packaging, healthcare, and agriculture.
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Affiliation(s)
- Yuxiang Jia
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Japan.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Japan.
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15
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Wang Q, Yu F, Zhu J, Li N, Zhang Y, Peng X, Shang J, Li S, Wang H, Uyama H. Treating Waste with Waste: Facile Preparation of Elastic Thermoplastic Polyurethane Monolith for Efficient Oil/Water Separation. BCSJ 2022. [DOI: 10.1246/bcsj.20220258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qidong Wang
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Fangjun Yu
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Jiayi Zhu
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Nan Li
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Ye Zhang
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Xiangwen Peng
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Jizhen Shang
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Shuai Li
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Hua Wang
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P. R. China
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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16
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Ferry MA, Maruyama J, Asoh TA, Uyama H. Porosity-Induced Improvement in KOH Activation of Chitin Nanofiber-Based Porous Carbon Leading to Ultrahigh Specific Capacitance. ChemSusChem 2022; 15:e202200932. [PMID: 35723611 DOI: 10.1002/cssc.202200932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/17/2022] [Indexed: 06/15/2023]
Abstract
The applicability of chitin-based carbon as a supercapacitor electrode material was investigated by adjusting its pore structure through polystyrene latex templating, without significant N doping. 2,2,6,6-tetramethylpiperidinyloxy (TEMPO)-oxidized chitin nanofibers were mixed with polystyrene latex, hydrothermally treated at 220 °C, carbonized, and activated using KOH at 800 °C, yielding activated hierarchical porous carbon. The variation of both polystyrene latex amount and carbonization temperature resulted in changes in the surface area and pore structure, which dictated the degree of pore uniformity and activation efficiency. The pore structure affected activation by allowing the selective removal of amorphous carbon, exposing the basal plane carbon, resulting in higher specific capacitance. By making activated hierarchical porous carbon more conducive to activation, specific capacitance of 567 F g-1 at 0.5 A g-1 was achieved, with no loss in performance after 10000 charge-discharge cycles.
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Affiliation(s)
- Mark Adam Ferry
- Division of Applied Chemistry, Osaka University Graduate School of Engineering, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Jun Maruyama
- Research Division of Environmental Technology, Osaka Research Institute of Industrial Science and Technology, 1-6-50 Morinomiya, Joto-ku, Osaka, 536-8553, Japan
| | - Taka-Aki Asoh
- Division of Applied Chemistry, Osaka University Graduate School of Engineering, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroshi Uyama
- Division of Applied Chemistry, Osaka University Graduate School of Engineering, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
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17
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Muraoka M, Ohno M, Nakai T, Matsuura H, Nagano K, Arai M, Hirata Y, Uyama H, Hirata K. Gamma-Glutamylcysteine Production Using Phytochelatin Synthase-Like Enzyme Derived from <i>Nostoc</i> sp. Covalently Immobilized on a Cellulose Carrier. Biol Pharm Bull 2022; 45:1191-1197. [DOI: 10.1248/bpb.b22-00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Misa Muraoka
- Applied Environmental Biology Laboratory, Graduate School of Pharmaceutical Sciences, Osaka University
| | - Moeka Ohno
- Applied Environmental Biology Laboratory, Graduate School of Pharmaceutical Sciences, Osaka University
| | - Takuya Nakai
- Applied Environmental Biology Laboratory, Graduate School of Pharmaceutical Sciences, Osaka University
| | - Hideyuki Matsuura
- Applied Environmental Biology Laboratory, Graduate School of Pharmaceutical Sciences, Osaka University
| | - Kazuya Nagano
- School of Pharmaceutical Sciences, Wakayama Medical University
| | - Masayoshi Arai
- Natural Products for Drug Discovery Laboratory, Graduate School of Pharmaceutical Sciences, Osaka University
| | | | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Kazumasa Hirata
- School of Pharmaceutical Sciences, Wakayama Medical University
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18
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Si W, Xie Q, Zhang R, Wang Z, Shen Y, Uyama H. Exploring the structural dependence of metal-free carbon electrocatalysts on zinc-based metal-organic framework types. Dalton Trans 2022; 51:11363-11371. [PMID: 35816017 DOI: 10.1039/d2dt01718k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-organic frameworks (MOFs) have been widely used as precursors to derive carbon-based electrocatalysts for the oxygen reduction reaction (ORR) due to their high porosity and tunable chemical composition/structure. However, the influence of MOF type on the structure and further ORR activity of derived metal-free carbon catalysts is still elusive. In the present work, a series of different Zn-based MOFs were employed as precursors to explore this issue. Meanwhile, prepare N-doped metal-free carbon catalysts were prepared for the ORR under the activation of sacrificial urea (which is effective to enhance the ORR activity of carbon-based catalysts). By analyzing the intermediates during pyrolysis, it is found that the decisive role of MOF types on the doped N and the morphology of derived carbon catalysts was played by the Zn coordination environment of MOFs and its reactivity with the decomposition intermediate of urea. Although the structure and porosity of derived carbon catalysts from different MOFs are very different, they all showed superior ORR activity and Zn-air battery performance up to 20 wt% Pt/C benchmark catalysts. From the above analyses, the combination of urea and compounded Zn is also a promising activation method for the preparation of highly-efficient metal-free carbon electrocatalysts.
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Affiliation(s)
- Wenfang Si
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Qianjie Xie
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Ruiyi Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Zheng Wang
- College of Food Science and Engineering, Northwest University, No. 229 Taibai North Road, 710069 Xi'an, Shaanxi, China.
| | - Yehua Shen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
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19
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Wang Y, Zhang L, Hsu YI, Asoh TA, Uyama H. Facile Fabrication of Hierarchically Porous Boronic Acid Group-Functionalized Monoliths With Optical Activity for Recognizing Glucose With Different Conformation. Front Chem 2022; 10:939368. [PMID: 35755261 PMCID: PMC9213758 DOI: 10.3389/fchem.2022.939368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022] Open
Abstract
At present, various materials based on helical polymers are nanoparticle or microsphere, which is not ease of use in practical application. Accordingly, facile preparation hierarchically porous monolith based on helical polymer needs to be developed. Herein, hierarchically porous boronic acid group-functionalized monoliths that exhibited optical activity were fabricated with a facile method based on crosslinking and polymerization-induced phase separation (CPIPS). Chiral substituted acetylene and achiral substituted acetylene with a boronic acid group were used as monomers. By regulating the composition of the pre-polymerization solution, the permeability and macropore size of the porous structure could be controlled. The hierarchically porous structure and large surface area were confirmed by scanning electron microscopy and nitrogen gas adsorption/desorption isotherms. In particular, the boronic acid functional group that can interact with a cis-diol group was successfully introduced on the skeleton surface of the monoliths. Further, the main chain of the copolymer that constituted the monoliths exhibited a high cis content and tacticity, and the monoliths showed good optical activity. Thus, the present study established a facile method to synthesize hierarchically porous boronic acid group-functionalized monoliths with optical activity via CPIPS, and the monoliths showed potential in recognition, separation, and adsorption of compound with chirality and cis-diol groups.
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Affiliation(s)
- Yan Wang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Japan
| | - Luwei Zhang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Japan
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20
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Soni R, Hsu Y, Asoh T, Uyama H. Cellulose nanofiber reinforced starch film with rapid disintegration in marine environments. J Appl Polym Sci 2022. [DOI: 10.1002/app.52776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Raghav Soni
- Department of Applied Chemistry, Graduate School of Engineering Osaka University Osaka Japan
| | - Yu‐I Hsu
- Department of Applied Chemistry, Graduate School of Engineering Osaka University Osaka Japan
| | - Taka‐Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering Osaka University Osaka Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering Osaka University Osaka Japan
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21
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Zhang L, Wang Y, Zhang W, Hsu YI, Asoh TA, Qi B, Uyama H. Robust Dual-Biomimetic Titanium Dioxide-Cellulose Monolith for Enrichment of Phosphopeptides. ACS Biomater Sci Eng 2022; 8:2676-2683. [PMID: 35616239 DOI: 10.1021/acsbiomaterials.2c00385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal oxide affinity chromatography (MOAC) is considered to be one of the most effective methods for phosphopeptide enrichment. However, most of the materials used in the method are powder; frequent centrifugation is necessitated during the enrichment process, and potential risks of loss of peptides and materials and clogging of the column employed for liquid chromatography-mass spectrometry (LC-MS) arise. Moreover, the reusability of these materials to achieve sustainability was hardly investigated. To overcome these limitations, herein, inorganic titanium dioxide (TiO2) was coated onto the skeletal surface of the organic cellulose monolith (CM) material with a coral-like structure via a sol-gel method. This produced an organic-inorganic hybrid TiO2-CM material, which contained a combination of organic and inorganic substances, making it mimic the mollusk shell in terms of composition. The prepared TiO2-CM material as monolith exhibited excellent mechanical strength and did not break during the enrichment process; thus, the tedious implementation of multiple centrifugation cycles was prevented, thereby streamlining the experimental procedure and avoiding the loss of peptides and materials. Moreover, a large amount of TiO2 was introduced onto the surface of the CM material, and thus, the resultant TiO2-CM material exhibited a large surface area. As a result, the fabricated TiO2-CM material was successfully applied to the enrichment of phosphopeptides obtained from the tryptic digests of a BSA/β-casein (mass ratio, 500/1) mixture. The results were superior to those achieved for commercial TiO2 beads, confirming that TiO2-CM has excellent selectivity for phosphopeptides and reusability. Furthermore, 9287 unique phosphopeptides derived from the 2661 phosphoproteins were successfully identified from two milligrams of tryptic digests of Hela cell exosomes obtained through five independent replications after enriching using the TiO2-CM material. The results indicated that the material has good application prospects in the analysis of protein phosphorylation. Furthermore, TiO2-CM consists of green and cheap cellulose as the skeleton, and its synthesis process is environment-friendly, simple, and inexpensive.
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Affiliation(s)
- Luwei Zhang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yan Wang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Wanjun Zhang
- State Key Laboratory of Proteomics, National Center for Protein Sciences Beijing, Beijing Institute of Lifeomics, Beijing Proteome Research Center, Beijing 102206, China
| | - Yu-I Hsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Baoyun Qi
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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22
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Asoh TA, Takai S, Uyama H. Actuation of Hydrogel Architectures Prepared by Electrophoretic Adhesion of Thermoresponsive Microgels. Langmuir 2022; 38:5183-5187. [PMID: 34665626 DOI: 10.1021/acs.langmuir.1c02330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Owing to their unique properties, hydrogels may be used for preparing soft actuators. Soft actuators are expected to respond quickly; however, the response speed of gels is slow. To study this issue and overcome it, thermoresponsive soft actuators were prepared by the electrophoretic adhesion of cationic and anionic thermoresponsive microgels, comprising poly(diallyldimethylammonium chloride) and poly(styrenesulfonate) sodium salt, respectively. The kinetics of the prepared hydrogel architectures in response to temperature depended on the microgel diameter instead of the architecture size. We also prepared bilayered hydrogel architectures by adhesion of thermoresponsive and/or nonthermoresponsive microgels. These bent rapidly in response to temperature because these architectures consisted of microgel assemblies. In addition, specific bending motion was demonstrated by the adhesion of microgel layers of different sizes. The present study provides not only a guideline for the design of hydrogel actuators with quick response but also presents a method for the free-form fabrication of functional hydrogel materials that undergo complex motions in response to stimuli.
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Affiliation(s)
- Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shiho Takai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Wang Q, Li B, Liu Q, Qi Y, Zhao M, Wang H, Asoh TA, Uyama H. Facile Preparation of Porous Low Density Polyethylene Monolith for Efficient Oil/Water Separation. BCSJ 2022. [DOI: 10.1246/bcsj.20220090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qidong Wang
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China
- Department of Chemistry, School of Life Sciences, Huzhou University, Huzhou, Zhejiang 313000, P. R. China
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Bin Li
- Department of Chemistry, School of Life Sciences, Huzhou University, Huzhou, Zhejiang 313000, P. R. China
| | - Qingshan Liu
- Department of Chemistry, School of Life Sciences, Huzhou University, Huzhou, Zhejiang 313000, P. R. China
| | - Yanxia Qi
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China
- Department of Chemistry, School of Life Sciences, Huzhou University, Huzhou, Zhejiang 313000, P. R. China
| | - Mingxing Zhao
- Department of Chemistry, School of Life Sciences, Huzhou University, Huzhou, Zhejiang 313000, P. R. China
| | - Hua Wang
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, P.R. China
- Department of Chemistry, School of Life Sciences, Huzhou University, Huzhou, Zhejiang 313000, P. R. China
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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24
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Kashihara Y, Asoh T, Uyama H. Travelling Wave Generation of Wrinkles on the Hydrogel Surfaces. Macromol Rapid Commun 2022. [DOI: 10.1002/marc.202270020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Wei M, Hsu YI, Asoh TA, Sung MH, Uyama H. Design of Injectable Poly(γ-glutamic acid)/Chondroitin Sulfate Hydrogels with Mineralization Ability. ACS Appl Bio Mater 2022; 5:1508-1518. [PMID: 35286062 DOI: 10.1021/acsabm.1c01269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Biocompatible hydrogels are considered promising agents for application in bone tissue engineering. However, the design of reliable hydrogels with satisfactory injectability, mechanical strength, and a rapid biomineralization rate for bone regeneration remains challenging. Herein, injectable hydrogels are fabricated using hydrazide-modified poly(γ-glutamic acid) and oxidized chondroitin sulfate by combining acylhydrazone bonds and ionic bonding of carboxylic acid groups or sulfate groups with calcium ions (Ca2+). The resulting hydrogels display a fast gelation rate and good self-healing ability due to the acylhydrazone bonds. The introduction of Ca2+ at a moderate concentration enhances the mechanical strength of the hydrogels. The self-healing capacity of hydrogels is improved, with a healing efficiency of 87.5%, because the addition of Ca2+ accelerates the healing process of hydrogels. Moreover, the hydrogels can serve as a robust template for biomineralization. The mineralized hydrogels with increasing Ca2+ concentration exhibit rapid formation and high crystallization of apatite after immersion in simulated body fluid. The hydrogels containing the aldehyde groups possess good bioadhesion to the bone and cartilage tissues. With these superior properties, the developed hydrogels demonstrate potential applicability in bone tissue engineering.
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Affiliation(s)
- Meng Wei
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - Moon-Hee Sung
- Department of Advanced Fermentation Fusion Science and Technology, Kookmin University, Seongbuk-gu, Seoul 136-702, Korea
| | - Hiroshi Uyama
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan
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26
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Maruyama J, Maruyama S, Kashiwagi Y, Watanabe M, Shinagawa T, Nagaoka T, Tamai T, Ryu N, Matsuo K, Ohwada M, Chida K, Yoshii T, Nishihara H, Tani F, Uyama H. Helically aligned fused carbon hollow nanospheres with chiral discrimination ability. Nanoscale 2022; 14:3748-3757. [PMID: 35167641 DOI: 10.1039/d1nr07971a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
While the functions of carbon materials with precisely controlled nanostructures have been reported in many studies, their chiral discriminating abilities have not been reported yet. Herein, chiral discrimination is achieved using helical carbon materials devoid of chiral attachments. A Fe3O4 nanoparticle template with ethyl cellulose (carbon source) is self-assembled on dispersed multiwalled carbon nanotubes (MWCNTs) fixed in a lamellar structure, with helical nanoparticle alignment induced by the addition of a binaphthyl derivative. Carbonization followed by template removal produces helically aligned fused carbon hollow nanospheres (CHNSs) with no chiral molecules left. Helicity is confirmed using vacuum-ultraviolet circular dichroism spectroscopy. Chiral discrimination, as revealed by the electrochemical reactions of binaphthol and a chiral ferrocene derivative in aqueous and nonaqueous electrolytes, respectively, is attributable to the chiral space formed between the CHNS and MWCNT surfaces.
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Affiliation(s)
- Jun Maruyama
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Shohei Maruyama
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Yukiyasu Kashiwagi
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Mitsuru Watanabe
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Tsutomu Shinagawa
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Toru Nagaoka
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Toshiyuki Tamai
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Naoya Ryu
- Kumamoto Industrial Research Institute, 3-11-38, Higashimachi, Higashi-ku, Kumamoto 862-0901, Japan
| | - Koichi Matsuo
- Hiroshima Synchrotron Radiation Center, Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima 739-0046, Japan
| | - Mao Ohwada
- Advanced Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Koki Chida
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Takeharu Yoshii
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Hirotomo Nishihara
- Advanced Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Fumito Tani
- Institute for Materials Chemistry and Engineering, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita 565-0871, Japan
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Azman Mohammad Taib MN, Hamidon TS, Garba ZN, Trache D, Uyama H, Hussin MH. Recent progress in cellulose-based composites towards flame retardancy applications. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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28
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Wei M, Inoue T, Hsu YI, Sung MH, Fukuoka T, Kobayashi S, Uyama H. Preparation of pH-Responsive Poly(γ-glutamic acid) Hydrogels by Enzymatic Cross-Linking. ACS Biomater Sci Eng 2022; 8:551-559. [PMID: 35103468 DOI: 10.1021/acsbiomaterials.1c01378] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
pH-responsive hydrogels are important for oral drug release applications, and they are increasingly demanded to reduce the adverse side effects of drug release and improve drug absorption. In this study, a new type of pH-responsive hydrogel comprised of poly(γ-glutamic acid) modified with tyramine (PGA-Tyr) was developed through enzymatic cross-linking in the presence of horseradish peroxidase (HRP) and hydrogen peroxide (H2O2). The gelation rate, stiffness, swelling behavior, and pore size of the resulting hydrogels were tuned by changing the concentrations of HRP and H2O2 or the degree of substitution (DS) of PGA-Tyr. The pH responsiveness of the hydrogels was evaluated by the swelling ratio in solutions with various pH values, and their pH responsiveness exhibited a good reversibility in pH 2.0 and 7.0 solutions. The degradation rate of the hydrogels in simulated intestinal fluid (SIF) was faster than that in simulated gastric fluid (SGF). Moreover, indomethacin (IM), a hydrophobic drug model, was encapsulated in the hydrogels by rapid in situ gelation, and the pH-dependent drug release of IM-loaded hydrogels was achieved in SGF and SIF. Importantly, when IM was entrapped in pluronic F-127 to form drug micelles, the burst release of the IM-micelle-loaded hydrogels with a high DS of PGA-Tyr was remarkably decreased in SGF, and sustained drug release was presented in SIF. Thus, pH-responsive PGA-based hydrogels have tremendous promise for biomedical applications, especially oral drug delivery.
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Affiliation(s)
- Meng Wei
- Department of Applied Chemistry, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Tomonori Inoue
- Department of Materials Chemistry, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Moon-Hee Sung
- Department of Advanced Fermentation Fusion Science and Technology, Kookmin University, Seongbuk-gu, Seoul 136-702, Korea
| | - Tokuma Fukuoka
- Department of Materials Chemistry, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan.,Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan
| | - Shiro Kobayashi
- Department of Materials Chemistry, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
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29
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Kashihara Y, Asoh TA, Uyama H. Travelling Wave Generation of Wrinkles on the Hydrogel Surfaces. Macromol Rapid Commun 2022; 43:e2100848. [PMID: 35020236 DOI: 10.1002/marc.202100848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 12/27/2021] [Indexed: 12/24/2022]
Abstract
The dynamic and static properties of structured surfaces have important functions in nature. In particular, wrinkles have important static roles, for example, increasing surface area, but dynamic roles of wrinkles remain poorly understood. Specifically, to understand and utilize the dynamic functions of wrinkles, it is necessary to observe wrinkle formation directly. In this study, a polyion complex (PIC) is formed on a hydrogel surface by electrophoresis, and the process of wrinkle formation through a transparent electrode is directly observed. By quantitative analysis of the wavelength and amplitude of wrinkles, it is found that the wrinkles move randomly in a wavy pattern in the initial stage of growing process. Furthermore, the direction of wavy motion of wrinkles is controlled by the compression of hydrogels in the in-plane direction. The present study provides important insights into the fabrication of wrinkled surfaces with a controlled flow direction; opening the possibility for active wrinkles used in the development of functional surface structures as actuators that are capable of transporting small objects in water.
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Affiliation(s)
- Yuka Kashihara
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
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Gunathilake TMSU, Ching YC, Uyama H, Hai ND, Chuah CH. Enhanced curcumin loaded nanocellulose: a possible inhalable nanotherapeutic to treat COVID-19. Cellulose (Lond) 2022; 29:1821-1840. [PMID: 35002106 PMCID: PMC8725427 DOI: 10.1007/s10570-021-04391-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 12/20/2021] [Indexed: 05/10/2023]
Abstract
Nanocellulose/polyvinyl alcohol/curcumin (CNC/PVA/curcumin) nanoparticles with enhanced drug loading properties were developed by the dispersion of nanocellulose in curcumin/polyvinyl alcohol aqueous medium. Due to the physical and chemical nature of sulphuric acid hydrolyzed nanocellulose and the antiviral properties of curcumin, the possibility of using these nanoparticles as an inhalable nanotherapeutic for the treatment of coronavirus disease 2019 (COVID-19) is discussed. The adsorption of curcumin and PVA into nanocellulose, and the presence of anionic sulphate groups, which is important for the interaction with viral glycoproteins were confirmed by Fourier transform infrared (FTIR) spectroscopy. FESEM images showed that the diameter of nanocellulose ranged from 50 to 100 nm, which is closer to the diameter (60-140 nm) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The solubility of poorly water-soluble curcumin was increased from 40.58 ± 1.42 to 313.61 ± 1.05 mg/L with increasing the PVA concentration from 0.05 to 0.8% (w/v) in aqueous medium. This is a significant increase in the solubility compared to curcumin's solubility in carboxymethyl cellulose medium in our previous study. The drug loading capacity increased by 22-fold with the addition of 0.8% PVA to the nanocellulose dispersed curcumin solution. The highest drug release increased from 1.25 ± 0.15 mg/L to 17.11 ± 0.22 mg/L with increasing the PVA concentration from 0 to 0.8% in the drug-loaded medium. Future studies of this material will be based on the antiviral efficacy against SARS-CoV-2 and cell cytotoxicity studies. Due to the particulate nature, morphology and size of SARS-CoV-2, nanoparticle-based strategies offer a strong approach to tackling this virus. Hence, we believe that the enhanced loading of curcumin in nanocellulose will provide a promising nano-based solution for the treatment of COVID-19.
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Affiliation(s)
- Thennakoon M. Sampath U. Gunathilake
- Centre of Advanced Materials (CAM), Faculty of Engineering, University of Malaya, 50603 Kuala, Lumpur, Malaysia
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala, Lumpur, Malaysia
| | - Yern Chee Ching
- Centre of Advanced Materials (CAM), Faculty of Engineering, University of Malaya, 50603 Kuala, Lumpur, Malaysia
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala, Lumpur, Malaysia
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Nguyen Dai Hai
- Institute of Applied Materials Science, Vietnam Academy Science and Technology, 01 TL29, District 12, Ho Chi Minh City, 700000 Vietnam
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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31
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Sakura K, Sasai M, Mino T, Uyama H. Non-Woven Sheet Containing Gemcitabine: Controlled Release Complex for Pancreatic Cancer Treatment. Polymers (Basel) 2022; 14:polym14010168. [PMID: 35012190 PMCID: PMC8747259 DOI: 10.3390/polym14010168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 12/25/2021] [Accepted: 12/30/2021] [Indexed: 02/04/2023] Open
Abstract
The 5-year survival rate for pancreatic cancer remains low, and the development of new methods for its treatment is actively underway. After the surgical treatment of pancreatic cancer, recurrence and peritoneal dissemination can be prevented by long-term local exposure to appropriate drug concentrations. We propose a novel treatment method using non-woven sheets to achieve this goal. Poly(L-lactic acid) non-woven sheets containing gemcitabine (GEM) were prepared, and GEM sustained release from this delivery system was investigated. Approximately 35% of the GEM dose was released within 30 d. For in vitro evaluation, we conducted a cell growth inhibition test using transwell assays, and significant inhibition of cell growth was observed. The antitumor effects of subcutaneously implanted GEM-containing non-woven sheets were evaluated in mice bearing subcutaneous Panc02 cells, and it was established that the sheets inhibited tumor growth for approximately 28 d. These results suggest the usefulness of GEM-containing non-woven sheets in pancreatic cancer treatment.
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Affiliation(s)
- Kazuma Sakura
- Respiratory Center, Osaka University Hospital, Osaka 565-0871, Japan
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
- Division of Translational Research, Osaka University Hospital, Osaka 565-0871, Japan;
- Correspondence: ; Tel.: +81-6-6210-8289
| | - Masao Sasai
- Division of Translational Research, Osaka University Hospital, Osaka 565-0871, Japan;
| | - Takayuki Mino
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan; (T.M.); (H.U.)
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan; (T.M.); (H.U.)
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32
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Saisangtham S, Likitaporn C, Kasemsiri P, Qin J, Okhawilai M, Potiyaraj P, Uyama H. Polyacrylonitrile/bio-based polyurethane electrospun fiber mats as advanced separators for high-performance Zn-ion batteries. EXPRESS POLYM LETT 2022. [DOI: 10.3144/expresspolymlett.2022.61] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
Hydroxyapatite (HA) shows promising applications in the clinical treatment of bone defects owing to its excellent physicochemical properties, such as biocompatibility, bioactivity, and osteoconductivity. However, it is difficult to maintain a porous structure in HA materials because of processing difficulties. In this study, a hard template method was developed to prepare a porous HA monolith with a hierarchical pore structure and high porosity. The cellulose monolith template was prepared from cellulose acetate using a thermally induced phase separation method. The cellulose monoliths were then immersed into the HA slurry to form a cellulose_HA composite monolith, which was converted to an HA monolith by burning in air to remove the cellulose monolith. Owing to the hierarchically porous structure of the cellulose monolith template, the obtained HA monolith demonstrated a hierarchically porous structure. Furthermore, the HA monolith was explored to study the adsorption and release properties of bovine serum albumin (BSA), which indicated that the HA monolith had a high adsorption capacity (388.6 mg g-1) and sustained release from the BSA-loaded HA monolith. Thus, HA monoliths have potential applications in the field of protein purification and biomaterials.
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Affiliation(s)
- Yanting Lyu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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34
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Sugawara A, Asoh TA, Takashima Y, Harada A, Uyama H. Thermoresponsive hydrogels reinforced with supramolecular cellulose filler. CHEM LETT 2021. [DOI: 10.1246/cl.210658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akihide Sugawara
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Institute for Advanced Co-Creation Studies, and Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
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35
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Uchida Y, Uyama H, Minakuchi A, Matsunobu K, Yoshida M, Shirakawa Y. Phase-Field Simulation with Semi-Empirical and Effective Parameters in a Case Study from PVA Membrane Syntheses by Phase Separation and Drying Process. J Chem Eng Japan / JCEJ 2021. [DOI: 10.1252/jcej.20we242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuri Uchida
- Department of Chemical Engineering and Materials Science, Doshisha University
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | | | | | - Mikio Yoshida
- Department of Chemical Engineering and Materials Science, Doshisha University
| | - Yoshiyuki Shirakawa
- Department of Chemical Engineering and Materials Science, Doshisha University
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36
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Gunathilake TMSU, Ching YC, Uyama H, Nguyen DH, Chuah CH. Investigations on the interactions of proteins with nanocellulose produced via sulphuric acid hydrolysis. Int J Biol Macromol 2021; 193:1522-1531. [PMID: 34740692 DOI: 10.1016/j.ijbiomac.2021.10.215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/04/2021] [Accepted: 10/28/2021] [Indexed: 01/03/2023]
Abstract
The investigation of protein-nanoparticle interactions contributes to the understanding of nanoparticle bio-reactivity and creates a database of nanoparticles for use in nanomedicine, nanodiagnosis, and nanotherapy. In this study, hen's egg white was used as the protein source to study the interaction of proteins with sulphuric acid hydrolysed nanocellulose (CNC). Several techniques such as FTIR, zeta potential measurement, UV-vis spectroscopy, compressive strength, TGA, contact angle and FESEM provide valuable information in the protein-CNC interaction study. The presence of a broader peak in the 1600-1050 cm-1 range of CNC/egg white protein FTIR spectrum compared to the 1600-1050 cm-1 range of CNC sample indicated the binding of egg white protein to CNC surface. The contact angle with the glass surface decreased with the addition of CNC to egg white protein. The FESEM EDX spectra showed a higher amount of N and Na on the surface of CNC. It indicates the density of protein molecules higher around CNC. The zeta potential of CNC changed from -26.7 ± 0.46 to -21.7 ± 0.2 with the introduction of egg white protein due to the hydrogen bonding, polar bonds and electrostatic interaction between surface CNC and protein. The compressive strength of the egg white protein films increased from 0.064 ± 0.01 to 0.36 ± 0.02 MPa with increasing the CNC concentration from 0 to 4.73% (w/v). The thermal decomposition temperature of CNC/egg white protein decreased compared to egg white protein thermal decomposition temperature. According to UV-Vis spectroscopy, the far-UV light (207-222nm) absorption peak slightly changed in the CNC/egg white protein spectrum compared to the egg white protein spectrum. Based on the results, the observations of protein nanoparticle interactions provide an additional understanding, besides the theoretical simulations from previous studies. Also, the results indicate to aim CNC for the application of nanomedicine and nanotherapy. A new insight given by us in this research assumes a reasonable solution to these crucial applications.
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Affiliation(s)
- Thennakoon M Sampath U Gunathilake
- Centre of Advanced Materials (CAM), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Yern Chee Ching
- Centre of Advanced Materials (CAM), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Dai Hai Nguyen
- Institute of Applied Materials Science, Vietnam Academy Science and Technology, 01 TL29 District 12, Ho Chi Minh City 700000, Viet Nam
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Soni R, Hsu YI, Asoh TA, Uyama H. Synergistic effect of hemiacetal crosslinking and crystallinity on wet strength of cellulose nanofiber-reinforced starch films. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106956] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wang Y, Zhang L, Asoh TA, Uyama H. Facile Preparation of Hierarchically Porous Monolith with Optical Activity Based on Helical Substituted Polyacetylene via One-Step Synthesis for Enantioselective Crystallization. ACS Appl Mater Interfaces 2021; 13:48020-48029. [PMID: 34592813 DOI: 10.1021/acsami.1c12801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The present study reported the flexible and highly efficient one-step synthesis of chiral hierarchical porous monoliths via cross-linking and polymerization-induced phase separation using substituted acetylene and cross-linker in the presence of porogenic solvent (tetrahydrofuran and methanol) in which the complex doping and complicated procedures were not required. It was demonstrated that hierarchical pore structure with through-pore and high surface area existed in the monoliths, which provides more chiral sites and space for interaction between monolithic materials and the solution. The porous structures and pore size can be adjusted by changing the conditions of phase separation. Moreover, the prepared monoliths exhibited good optical activity, thermal stability and mechanical properties. Therefore, the hierarchically porous monoliths with optical activity were applied in enantioselective crystallization and showed good performance.
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Affiliation(s)
- Yan Wang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Luwei Zhang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Xie Q, Si W, Shen Y, Wang Z, Uyama H. N- and O-doped hollow carbons constructed by self- and extrinsic activation for the oxygen reduction reaction and flexible zinc-air Batteries. Nanoscale 2021; 13:16296-16306. [PMID: 34558569 DOI: 10.1039/d1nr04821j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Zinc-air batteries (ZAB), especially those assembled on flexible substrates, have attracted great research attention in electronics and wearable electronics. However, the air-cathode reaction-oxygen reduction reaction (ORR) has limited the development of ZAB technology. In this study, a hollow carbon catalyst, NOC-1000-1, was prepared by pyrolysis of a mixture of a N-enriched Zn/bispyrozolate-based metal-organic framework and urea to replace the labile Pt-based catalysts for ORR. The employment of sacrifical urea eliminated the requirement for complicated post-treatment compared to the template method. Combined with self-activation (Zn evaporation), the obtained carbon showed a micro- and mesopore-dominant hierarchical structure coexisting with some macropores. Moreover, the doped N and O species were also tailored in a preferable configuration for ORR by simply screening the pyrolysis conditions. Under the synergistic effect of the preferable N and O configurations and pore structure, the derived carbon catalyst displayed superior ORR activity of 0.977 V onset potential and 0.867 V half-wave potential; these values are slightly better than those of the 20% Pt/C benchmark catalyst (0.985 and 0.861 V, respectively). Flexible solid-state ZABs were further assembled by employing the derived carbon catalyst as an air-cathode, and they exhibited a higher peak power density of 100.92 mW cm-2 than a 20% Pt/C-RuO2 battery as well as previously reported similar batteries and very high stability for up to 30 h. The flexible solid-state ZABs could drive a red light-emitting diode and run a 130-type motor for hours, which indicates their promising applications in real-world technologies.
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Affiliation(s)
- Qianjie Xie
- College of Food Science and Engineering, Northwest University, No. 229 Taibai North Road, 710069 Xi'an, Shaanxi, China.
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Wenfang Si
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Yehua Shen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Zheng Wang
- College of Food Science and Engineering, Northwest University, No. 229 Taibai North Road, 710069 Xi'an, Shaanxi, China.
| | - Hiroshi Uyama
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
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Xie Z, Li L, Hsu Y, Asoh T, Uyama H. Citric acid functionalized cellulose monolith for continuous‐flow removal of cationic dye in water. Nano Select 2021. [DOI: 10.1002/nano.202100185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Zhengtian Xie
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565–0871 Japan
| | - Linxuan Li
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565–0871 Japan
| | - Yu‐I Hsu
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565–0871 Japan
| | - Taka‐Aki Asoh
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565–0871 Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565–0871 Japan
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Xie Q, Wang Z, Lin L, Shu Y, Zhang J, Li C, Shen Y, Uyama H. Nanoscaled and Atomic Ruthenium Electrocatalysts Confined Inside Super-Hydrophilic Carbon Nanofibers for Efficient Hydrogen Evolution Reaction. Small 2021; 17:e2102160. [PMID: 34363306 DOI: 10.1002/smll.202102160] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/10/2021] [Indexed: 06/13/2023]
Abstract
A series of Ru-based catalysts have been developed for the hydrogen evolution reaction (HER) by the facile impregnation of copious and eco-friendly bacterial cellulose (BC) with Ru(bpy)3 Cl2 (bpy = 2,2'-bipyridine) followed by pyrolysis. After the oxidation and molecular recomposition processes that occur within the BC precursors during pyrolysis, sub-2 nm Ru nanoparticles (NPs) and atomic Ru species confined within surface-oxidized N-doped carbon nanofibers (CNFs) can be observed in the derived catalysts. The surface oxidation of CNFs leads the derived catalysts with super hydrophilicity and water-absorbing capacity, and also provides dimensional confinement for the nanoscaled and atomic Ru species. With these added structural advantages and the component synergy, the derived catalysts show superior HER activities, for which the overpotentials are as low as 19.6 mV (1 m KOH) and 55.0 mV (0.5 m H2 SO4 ) for the most active case at the current density of 10 mA cm-2 . Moreover, superior HER activity can be also achieved for the catalysts derived with a wide range of Ru loadings. Finally, the influence of Ru NP size on HER activity is investigated by density functional theory simulations. This method provides a reliable protocol for preparing highly active HER catalysts for scale-up applications.
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Affiliation(s)
- Qianjie Xie
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Zheng Wang
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Like Lin
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Yu Shu
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Jingjing Zhang
- College of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Cong Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Yehua Shen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Hiroshi Uyama
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, China
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
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Wei M, Hsu YI, Asoh TA, Sung MH, Uyama H. Injectable poly(γ-glutamic acid)-based biodegradable hydrogels with tunable gelation rate and mechanical strength. J Mater Chem B 2021; 9:3584-3594. [PMID: 33909743 DOI: 10.1039/d1tb00412c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Polypeptide-based hydrogels have potential applications in polymer therapeutics and regenerative medicine. However, designing reliable polypeptide-based hydrogels with a rapid injection time and controllable stiffness for clinical applications remains a challenge. Herein, a class of injectable poly(γ-glutamic acid) (PGA)-based hydrogels were constructed using furfurylamine and tyramine-modified PGA (PGA-Fa-Tyr) and the crosslinker dimaleimide poly(ethylene glycol) (MAL-PEG-MAL), through a facile strategy combining enzymatic crosslinking and Diels-Alder (DA) reaction. The injectable hydrogels could be quickly gelatinized and the gelation time, ranging from 10 to 95 s, could be controlled by varying the hydrogen peroxide (H2O2) concentration. Compared with hydrogels formed by single enzymatic crosslinking, the compressive stress and strain of the injectable hydrogels were remarkably enhanced because of the occurrence of the subsequent DA reaction in the hydrogels, suggesting the DA network imparted an outstanding toughening effect on the hydrogels. Furthermore, the mechanical strength, swelling ratio, pore size, and degradation behavior of the injectable hydrogels could be easily controlled by changing the molar ratios of H2O2/Tyr or furan/maleimide. More importantly, injectable hydrogels encapsulating bovine serum albumin exhibited sustained release behavior. Thus, the developed hydrogels hold great potential for applications in biomedical fields, such as tissue engineering and cell/drug delivery.
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Affiliation(s)
- Meng Wei
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan.
| | - Yu-I Hsu
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan.
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan.
| | - Moon-Hee Sung
- Department of Advanced Fermentation Fusion Science and Technology, Kookmin University, Seoul, Korea
| | - Hiroshi Uyama
- Department of Applied Chemistry, Osaka University, Suita, Osaka 565-0871, Japan.
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Gunathilake TMSU, Ching YC, Uyama H, Chuah CH. Nanotherapeutics for treating coronavirus diseases. J Drug Deliv Sci Technol 2021; 64:102634. [PMID: 34127930 PMCID: PMC8190278 DOI: 10.1016/j.jddst.2021.102634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 12/16/2022]
Abstract
Viral diseases have recently become a threat to human health and rapidly become a significant cause of mortality with a continually exacerbated unfavorable socio-economic impact. Coronaviruses, including severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome (MERS-CoV), and severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), have threatened human life, with immense accompanying morbidity rates; the COVID-19 (caused by SARS-CoV-2) epidemic has become a severe threat to global public health. In addition, the design process of antiviral medications usually takes years before the treatments can be made readily available. Hence, it is necessary to invest scientifically and financially in a technology platform that can then be quickly repurposed on demand to be adequately positioned for this kind of pandemic situation through lessons learned from the previous pandemics. Nanomaterials/nanoformulations provide such platform technologies, and a proper investigation into their basic science and biological interactions would be of great benefit for potential vaccine and therapeutic development. In this respect, intelligent and advanced nano-based technologies provide specific physico-chemical properties, which can help fix the key issues related to the treatments of viral infections. This review aims to provide an overview of the latest research on the effective use of nanomaterials in the treatment of coronaviruses. Also raised are the problems, perspectives of antiviral nanoformulations, and the possibility of using nanomaterials effectively against current pandemic situations.
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Affiliation(s)
- Thennakoon M Sampath U Gunathilake
- Centre of Advanced Materials (CAM), Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Yern Chee Ching
- Centre of Advanced Materials (CAM), Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
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Abstract
We developed a mechano-responsive hydrogel that is driven by the dissociation of a host-guest complex. The hydrogel comprised a thermoresponsive linear polymer with adamantane as a guest molecule in its side chain and a nonthermoresponsive network structure with β-cyclodextrin as a host molecule. Immobilization of the thermoresponsive polymer in the hydrogel via host-guest interaction resulted in a partial restriction of its phase transition, even above its lower critical solution temperature (LCST). The hydrogel demonstrated a decrease in transmittance when mechanical stress was applied at a temperature above its LCST, indicating that the phase transition of the thermoresponsive polymer was induced by the dissociation of the host-guest complex under mechanical stress. Moreover, this mechano-responsive behavior was repeatable by cooling the hydrogel to redissolve the thermoresponsive polymer. The strategy of the mechano-responsive phase transition will be useful for various applications that demand the control of desired functions by applied stress.
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Affiliation(s)
- Akihide Sugawara
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Institute for Advanced Co-Creation Studies, and Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Harada N, Masuda K, Nakamura JI, Uyama H. Fabrication and evaluation of durable, optically clear, and self-disinfecting films. Polym J 2021. [DOI: 10.1038/s41428-021-00532-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Singha D, Pal A, Uyama H, Roy P, Nandi M. Discriminatory behavior of a rhodamine 6G decorated mesoporous silica based multiple cation sensor towards Cu 2+ and Hg 2+vis-à-vis Al 3+, Cr 3+ and Fe 3+: selective removal of Cu 2+ and Hg 2+ from aqueous media. Dalton Trans 2021; 50:12478-12494. [PMID: 34240725 DOI: 10.1039/d1dt01542g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Selective identification of metal ions as well as their removal is possible when a sensing unit is anchored to a solid support. In this paper, functionalized mesoporous silica with a pendant rhodamine 6G moiety (R6FMS) has been obtained by successive grafting of an aldehyde derivative of bisphenol A followed by rhodamine 6G over a 3-aminopropyl anchored mesoporous silica framework. The materials have been characterized by powder X-ray diffraction, nitrogen sorption and electron microscopy studies, FT-IR and solid state MAS NMR spectral studies, and thermal analysis. In ethanol, the colorless silica material gives pink coloration in the presence of Al3+, Cr3+, Fe3+ and Cu2+ which is also clearly evident from the generation of an absorption peak at 525 nm. Upon excitation at 500 nm, the fluorescence intensity of the probe increases by 36-, 17-, 40- and 89-fold in the presence of Al3+, Cr3+, Fe3+ and Cu2+ ions, respectively. This suggests that R6FMS is a colorimetric and fluorescent chemosensor for these cations in ethanol. However, when the solvent is changed from ethanol to water, it becomes a selective chemosensor only for Cu2+ and Hg2+, by the generation of a pink color and strong fluorescence at ca. 550 nm, thereby discriminating the trivalent cations. Cations induce the opening of the spirolactam ring resulting in pink coloration and strong fluorescence. The quantum yield and lifetime of the probe have been increased considerably in the presence of these cations in ethanol as well as in aqueous media. The detection limit values for these cations range from 10-6 to 10-8 M. R6FMS has been used to remove Hg2+ and Cu2+ from their aqueous solution with a maximum adsorption capacity of 35 mg g-1 and 148 mg g-1 for Cu2+ and Hg2+, respectively.
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Affiliation(s)
- Debdas Singha
- Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati University, Santiniketan 731 235, India.
| | - Ananya Pal
- Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati University, Santiniketan 731 235, India.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Partha Roy
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Mahasweta Nandi
- Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati University, Santiniketan 731 235, India.
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Sabrina Q, Ratri CR, Hardiansyah A, Lestariningsih T, Subhan A, Rifai A, Yudianti R, Uyama H. Preparation and characterization of nanofibrous cellulose as solid polymer electrolyte for lithium-ion battery applications. RSC Adv 2021; 11:22929-22936. [PMID: 35480471 PMCID: PMC9034343 DOI: 10.1039/d1ra03480d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/15/2021] [Indexed: 11/28/2022] Open
Abstract
A novel bacterial cellulose (BC)-based nanofiber material has been utilized as an ionic template for the battery system solid polymer electrolyte (SPE). The effect of drying techniques such as oven and freeze-drying on the gel-like material indicate differences in both visual and porous structures. The morphological structure of BC after oven and freeze-drying observed by field-emission scanning electron microscopy indicates that a more compact porous structure is found in freeze-dried BC than oven-dried BC. After the BC-based nanofiber immersion process into lithium hexafluorophosphate solution (1.0 M), the porous structure becomes a host for Li-ions, demonstrated by significant interactions between Li-ions from the salt and the C
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O groups of freeze-dried BC as shown in the infrared spectra. X-ray diffraction analysis of freeze-dried BC after immersion in electrolyte solution shows a lower degree of crystallinity, thus allowing an increase in Li-ion movement. As a result, freeze-dried BC has a better ionic conductivity of 2.71 × 10−2 S cm−1 than oven-dried BC, 6.00 × 10−3 S cm−1. Freeze-dried BC as SPE also shows a larger electrochemical stability window around 3.5 V, reversible oxidation/reduction peaks at 3.29/3.64 V, and an initial capacity of 18 mAHr g−1 at 0.2C. The high tensile strength of the freeze-dried BC membrane of 334 MPa with thermal stability up to 250 °C indicates the potential usage of freeze-dried BC as flexible SPE to dampen ionic leakage transfer. Nanofibrous cellulose as solid polymer electrolyte for lithium-ion battery applications.![]()
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Affiliation(s)
- Qolby Sabrina
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia .,Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Christin Rina Ratri
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Andri Hardiansyah
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Titik Lestariningsih
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Achmad Subhan
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Abdulloh Rifai
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Rike Yudianti
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
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Lyu Y, Asoh TA, Uyama H. Fabrication of Inorganic Oxide Fiber Using a Cigarette Filter as a Template. ACS Omega 2021; 6:15374-15381. [PMID: 34151115 PMCID: PMC8210397 DOI: 10.1021/acsomega.1c01750] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/25/2021] [Indexed: 05/25/2023]
Abstract
Inorganic oxides with unique physical and chemical properties have attracted much attention because they can be applied in a wide range of fields. Herein, recycled cigarette filters are deacetylated to cellulose filters (CFs), which are then applied as templates to prepare fiber-like inorganic oxides (titanium dioxide, TiO2, and silicon dioxide, SiO2). Inorganic oxides are prepared using CF as a template by a typical sol-gel reaction of metal alkoxides. Owing to the fibrous structure of the CF template, the prepared inorganic oxides (TiO2 and SiO2) show similar fibrous structures, which was confirmed by scanning electron microscopy and nitrogen adsorption-desorption analysis. Moreover, the prepared inorganic oxides (TiO2 and SiO2) show high surface areas and pore volumes. Furthermore, the TiO2 fiber-like materials are evaluated for their photocatalytic properties by analyzing the methylene blue (MB) and methyl orange (MO) degradation. In this study, we provide a clean method, which can convert cellulose acetate-based waste into useful templates to prepare inorganic oxides with relatively simple steps, and the prepared inorganic oxides can be applied in water treatment.
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Harada N, Kataoka M, Nakanosho M, Uyama H. Penetration of Singlet Oxygen into Films with Oxygen Permeability Coefficient Close to that of Skin. Photochem Photobiol 2021; 97:971-979. [PMID: 33973245 DOI: 10.1111/php.13446] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/05/2021] [Indexed: 12/30/2022]
Abstract
Although its antiviral and antibacterial functions help prevent infection, singlet oxygen (1 O2 )-which is generated by the action of light on an endogenous photosensitizer-is cytotoxic. In the present study, we investigated the ability of 1 O2 -generated by the action of visible light on a photosensitizer-to penetrate skin. We used two polymer films with oxygen permeability coefficients similar to that of skin-i.e. cellulose acetate (CA) and ethyl cellulose (EC). Both films contained 1,3-diphenylisobenzofuran (DPBF), which was used as an 1 O2 probe. 1 O2 generated externally did not permeate the films by mere contact. Therefore, we conclude that the potential for 1 O2 to penetrate the skin is very low, and films that generate 1 O2 are safe and useful for preventing infections by contact. We also proved that 1 O2 can move between the layers of integrated polymer films when they are joined together.
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Affiliation(s)
- Nobuyuki Harada
- Nippon Shokubai Research Alliance Laboratories, Osaka University, Osaka, Japan
| | - Mika Kataoka
- Nippon Shokubai Research Alliance Laboratories, Osaka University, Osaka, Japan
| | | | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
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Jamaluddin N, Hsu YI, Asoh TA, Uyama H. Optically Transparent and Toughened Poly(methyl methacrylate) Composite Films with Acylated Cellulose Nanofibers. ACS Omega 2021; 6:10752-10758. [PMID: 34056229 PMCID: PMC8153788 DOI: 10.1021/acsomega.1c00325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
In this work, nanocomposites of poly(methyl methacrylate) (PMMA) with cellulose nanofiber (CNF) were prepared by a solution casting technique. CNF was modified by propionic anhydride (PA) to form surface-propionylated CNF (CNFp) to improve its compatibility with the PMMA matrix. CNF, CNFp, and acetylated CNF were compared with respect to their influence as fillers in PMMA composite films by ultraviolet-visible transmittance, haze values, tensile strength testing, and water contact angle measurement. It was demonstrated that 1 wt % of CNFp has good compatibility and uniform dispersion in the PMMA matrix, as demonstrated by the formation of a smooth surface composite film with good transparency, enhanced tensile properties, improved toughness, and lower wettability. Therefore, PMMA/CNFp composite films have great potential for use in several applications such as lightweight transparent materials, window substitutes, and see-through packaging.
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