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Alshammari OAO, Alhar MSO, Elsayed NH, Monier M, Youssef I. Synthesis of furan-modified cationic cellulose for stereo-specific imprinting and separation of S-indacrinone via Diels-Alder reaction. Int J Biol Macromol 2024; 275:133384. [PMID: 38917927 DOI: 10.1016/j.ijbiomac.2024.133384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/02/2024] [Accepted: 06/21/2024] [Indexed: 06/27/2024]
Abstract
This study introduces a novel approach for the separation of indacrinone (IC) enantiomers, crucial in treating edema, hypertension, and hyperuricemia. A cationic biopolymer from furan-2-ylmethylhydrazine-cellulose (FUH-CE), derived from cyanoethyl cellulose (CEC), serving as a substrate in molecular imprinting. A key innovation is the use of the Diels-Alder reaction for efficient cross-linking with bis(maleimido)ethane (BME). This chemical strategy resulted in molecularly imprinted microparticles with high selectivity for the S-IC enantiomer, which can be eluted by adjusting the solution's pH. Extensive characterization confirmed the chemical modifications and selective binding efficacy of these biopolymers. Utilizing separation columns, our method achieved an impressive chiral resolution of (±)-IC, with an enantiomeric excess (ee) of 95 % for R-IC during the loading phase and 97 % for S-IC during elution. Under optimized conditions, the biopolymer demonstrated a maximum binding capacity of 131 mg/g at pH 6. This advanced approach represents a significant advancement in chiral separation technology, offering a robust and efficient technique for the selective isolation of enantiomers. This method not only enhances potential targeted therapeutic applications but also provides a scalable solution for industrial chiral separations.
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Affiliation(s)
- Odeh A O Alshammari
- Department of Chemistry, College of Science, University of Ha'il, Ha'il 81451, Saudi Arabia
| | - Munirah S O Alhar
- Department of Chemistry, College of Science, University of Ha'il, Ha'il 81451, Saudi Arabia
| | - Nadia H Elsayed
- Organic Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71421, Saudi Arabia.
| | - M Monier
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt.
| | - Ibrahim Youssef
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt; Neuroradiation and Neuro-intervention Section, Department of Radiology, UTSW Medical Center, Dallas, TX 75390. USA
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Li X, Liu Y, Luo B, Xiang W, Chen Z. Effect of apple polyphenols on physicochemical properties of pea starch/pulp cellulose nanofiber composite biodegradable films. Int J Biol Macromol 2024; 257:128480. [PMID: 38052284 DOI: 10.1016/j.ijbiomac.2023.128480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/23/2023] [Accepted: 11/26/2023] [Indexed: 12/07/2023]
Abstract
A pea starch (PS) and pulp cellulose nanofibers (CNF-P) hybrid matrix biodegradable film was prepared using apple polyphenol (AP) as the active substance. SEM and thermogravimetric analyses showed that apple polyphenols could be uniformly distributed and form hydrogen bonds with the matrix, and the increase in crystallinity improved the thermal stability of the films (the final residue of the films increased from 22.66 % to 31.82 %). The TS and EAB of the films reached their maximum values of 11.14 ± 1.73 MPa and 71.55 ± 8.8 %, respectively, at an AP content of 1.5 %. It should be noted that the antioxidant properties of the films were significantly positively correlated with the AP content, and the DPPH radical scavenging rate of the films reached 73.77 % at an AP content of 4.5 %, which was about 49 times higher than that of the control film. The same trend was observed in the UV-vis spectra. In addition, the total color difference and water solubility of the membranes increased from 4.29 ± 0.29 to 31.86 ± 1.90 and from 20.01 ± 0.97 % to 21.70 ± 1.99 %, respectively, and the biodegradability also showed an upward trend. These findings provide a theoretical basis and data support for the development of multifunctional biodegradable food packaging materials.
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Affiliation(s)
- Xu Li
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Speciality Food Co-Built By Sichuan and Chongqing, Chengdu 610039, China; Key Laboratory of Food Microbiology of Sichuan, Xihua University, Chengdu 610039, Sichuan, China.
| | - Yao Liu
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Bangping Luo
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Wenliang Xiang
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Speciality Food Co-Built By Sichuan and Chongqing, Chengdu 610039, China; Key Laboratory of Food Microbiology of Sichuan, Xihua University, Chengdu 610039, Sichuan, China
| | - Zhiwei Chen
- School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Speciality Food Co-Built By Sichuan and Chongqing, Chengdu 610039, China; Key Laboratory of Food Microbiology of Sichuan, Xihua University, Chengdu 610039, Sichuan, China
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Ali AA, Safi IN. Impact of nano-cellulose fiber addition on physico-mechanical properties of room temperature vulcanized maxillofacial silicone material. J Taibah Univ Med Sci 2023; 18:1616-1626. [PMID: 37711757 PMCID: PMC10497998 DOI: 10.1016/j.jtumed.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 05/17/2023] [Accepted: 07/01/2023] [Indexed: 09/16/2023] Open
Abstract
Objectives Maxillofacial silicone is used to restore abnormalities due to congenital or acquired causes. However, the quality of silicone is far from ideal. This study was aimed at assessing the influence of the addition of cellulose nanofibers (CNFs; several nanometers in diameter and 2-5 μm long) on the physical and mechanical characteristics of maxillofacial silicone elastomers. Methods Two CNF weight percentages (0.5% and 1%) were tested, and 180 specimens were divided into one control and two experimental groups. Each group was subdivided into six subgroups. In each subgroup, ten specimens subjected to each of the following tests: tearing strength, Shore-A hardness, tensile strength, elongation percentage, surface roughness, and color stability. The samples were additionally analyzed with Fourier transform infrared spectroscopy (FTIR) and field emission scanning electronic microscopy (FESEM). Results The 0.5% CNF group, compared with the control group, exhibited highly significantly greater tearing strength, elongation percentage, hardness Shore-A, and surface roughness, and substantially greater tensile strength. However, color stability did not significantly differ between groups.The 1% CNF group showed significantly greater Shore-A hardness, tear strength, color stability, and surface roughness, and insignificantly lower tensile strength and percentage elongating values, than the control group. FESEM imaging revealed good CNF dispersion. The FTIR spectra indicated that CNFs interacted with silicone through surface functional hydroxyl groups. Conclusion Addition of 0.5 wt. % CNF to silicone elastomers increased the material's mechanical tensile strength, tear strength, elongation percentage, and hardness as long as it stayed within the acceptable range for clinical use. Surface roughness increased in direct proportion to the amount of nanofibers added. Moreover, addition of 0.5 wt. % CNF to silicone polymers had insignificant effects on color stability.
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Affiliation(s)
- Ashraf Abdulrazzaq Ali
- Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Ihab Nabeel Safi
- Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
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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] [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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Zhang M, Zheng Y, Jin Y, Wang D, Wang G, Zhang X, Li Y, Lee S. Ag@MOF-loaded p-coumaric acid modified chitosan/chitosan nanoparticle and polyvinyl alcohol/starch bilayer films for food packing applications. Int J Biol Macromol 2022; 202:80-90. [PMID: 35038467 DOI: 10.1016/j.ijbiomac.2022.01.074] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 12/12/2022]
Abstract
Developing novel bilayer food packing film having the ability to prevent bacterial infections and capable of inhibiting oxidation is utmost important, since bacterial infections and oxidation can cause food spoilage. Ag-Metal-organic framework loaded p-coumaric acid modified chitosan (P-CS/Ag@MOF) or chitosan nanoparticles (P-CSNPs/Ag@MOF) and polyvinyl alcohol/starch (PVA/ST) were used as the upper film and lower layer film to successfully prepare a bilayer composite film. The microscopic morphology, water resistance, oil resistance, oxidation resistance, optical properties, cytotoxicity and antibacterial properties of the composite films were compared. The results showed that the surface of P-CS/Ag@MOF bilayer was relatively smooth and its tensile strength (TS) was higher (27.67 MPa). Among them, P-CS/Ag@MOF bilayer films had better oil resistance and oxidation resistance activity. In addition, the P-CS/Ag@MOF bilayer film had good UV-blocking properties and transparency. P-CSNPs/Ag@MOF bilayer film had higher antibacterial activity and cytotoxicity.
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Affiliation(s)
- Meng Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Yuqi Zheng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Yang Jin
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Dong Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China.
| | - Guohui Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Xin Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Yanxin Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Shaoxiang Lee
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
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