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Tian Q, Zhou W, Cai Q, Ma G, Lian G. Concepts, processing, and recent developments in encapsulating essential oils. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Zhang Y, Rochefort D. Characterisation and applications of microcapsules obtained by interfacial polycondensation. J Microencapsul 2012; 29:636-49. [DOI: 10.3109/02652048.2012.676092] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Zhao G, Li Y, Liu X, Liu X. Preparation of capsules containing 1-nonanol for rapidly removing high concentration phenol from aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2010; 175:715-725. [PMID: 19926216 DOI: 10.1016/j.jhazmat.2009.10.068] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2009] [Revised: 10/16/2009] [Accepted: 10/16/2009] [Indexed: 05/28/2023]
Abstract
This study investigated the potential of capsules containing 1-nonanol for the adsorption of phenol at high initial concentrations. The polysulfone capsules containing 1-nonanol (PSF@1-nonanol capsules) were successfully prepared with a phase inversion method, and the results showed that 1-nonanol was encapsulated with polysulfone as an encapsulation capacity of 67.99% was achieved. Systematic studies on phenol adsorption equilibrium, kinetics and isotherms by PSF@1-nonanol capsules were carried out. The results showed that the rate of adsorption of phenol is initially quite rapid and equilibrium is reached in about 90 min. Phenol adsorption uptake was found to increase with increase in initial concentration and adsorption time, whereas adsorption of phenol was more favourable at acidic pH and low temperature. The adsorption kinetics of phenol followed pseudo-second-order model, and the best fits of adsorption isotherms were achieved with the Freundlich equation. These results demonstrate that the use of PSF@1-nonanol capsules enhanced the mass transfer rate and the uptakes to phenol at high initial concentrations. Furthermore, after seven times of repeated extraction and stripping, the microcapsules kept almost the same adsorption ability, which indicated that the PSF@1-nonanol capsules have very good stability in the adsorption process. Therefore, PSF@1-nonanol capsules can be taken as an ideal adsorbent for rapid removal of high concentration phenol from aqueous solution.
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Affiliation(s)
- Guanghui Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, 222 Tianshui Road, Lanzhou 730000, China
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Gong X, Lu Y, Luo G. Caprolactam recovery by a column packed with polysulfone microcapsules containing 1-octanol. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2009.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Minamihata K, Kiyoyama S, Shiomori K, Yoshida M, Hatate Y. Preparation of Effective Extraction Media For Palladium (II) by Use of Microcapsules. KAGAKU KOGAKU RONBUN 2009. [DOI: 10.1252/kakoronbunshu.35.145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kosuke Minamihata
- Department of Chemical Science and Engineering, Miyakonojo National College of Technology
| | - Shiro Kiyoyama
- Department of Chemical Science and Engineering, Miyakonojo National College of Technology
| | | | - Masahiro Yoshida
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University
| | - Yasuo Hatate
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University
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Gong X, Lu Y, Xiang Z, Luo G. Preparation of polysulfone microcapsules containing 1-octanol for the recovery of caprolactam. J Microencapsul 2008; 26:104-10. [DOI: 10.1080/02652040802176357] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gong X, Lu Y, Yu J, Zou Y, Luo G. Polysulphone microcapsules containing silicone oil for the removal of toxic volatile organics from water. J Microencapsul 2008; 25:196-202. [DOI: 10.1080/02652040701850763] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Gong X, Lu Y, Xiang Z, Zhang Y, Luo G. Preparation of uniform microcapsules with silicone oil as continuous phase in a micro-dispersion process. J Microencapsul 2008; 24:767-76. [DOI: 10.1080/02652040701640560] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Fei C, Guangsheng L, Fangyu W, Yujun W. Adsorption and recovery of Cu (II) with polysulphone microcapsules containing chitosan gel. J Microencapsul 2008; 21:513-23. [PMID: 15513758 DOI: 10.1080/02652040410001729287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Polysulphone (PSF) microcapsules (PSF-CTS) containing chitosan gel with higher mechanical stability and anti-biodegradability were prepared using a novel surface coating method. The thickness and microstructures of the polysulphone coating layer were analysed by SEM. The experiments to examine the mechanical improvement of the encapsulated gel beads were carried out. The adsorption for Cu2+ and regeneration properties of unencapsulated and encapsulated gel beads were also tested. The results showed that the mechanical strength of the encapsulated gel beads was significantly enhanced. However, this improvement led to a decrease of the adsorption kinetics due to the increase of the mass transfer resistance. The potentially available methods are suggested to reduce mass transport resistance through the PSF coating layer.
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Affiliation(s)
- C Fei
- State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, PR China
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Outokesh M, Niibori Y, Mimura H, Ahmadi SJ. Comparison of the Batch and Breakthrough Properties of Stable and Plain Alginate Microcapsules with a Chelating Resin and an Ion Exchanger in Ag+ Adsorption. Ind Eng Chem Res 2008. [DOI: 10.1021/ie071200n] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohammad Outokesh
- Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave., P.O. Box 11365-8639, Tehran, Iran
| | - Yuichi Niibori
- Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Hitoshi Mimura
- Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Seyed Javad Ahmadi
- Jaber-ebne-Hayyan Laboratory, Nuclear Science and Technology Research Institute, North Karegar Ave., P.O. Box 14399-5113, Tehran, Iran
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Outokesh M, Mimura H, Niibori Y, Tanaka K. Equilibrium and Kinetics of Silver Uptake by Multinuclear Alginate Microcapsules Comprising an Ion Exchanger Matrix and Cyanex 302 Organophosphinic Acid Extractant. Ind Eng Chem Res 2006. [DOI: 10.1021/ie051109o] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohammad Outokesh
- Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Aramaki, Aza-Aoba 6-6, Sendai 980-8579, Japan
| | - Hitoshi Mimura
- Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Aramaki, Aza-Aoba 6-6, Sendai 980-8579, Japan
| | - Yuichi Niibori
- Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Aramaki, Aza-Aoba 6-6, Sendai 980-8579, Japan
| | - Kouichi Tanaka
- Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Aramaki, Aza-Aoba 6-6, Sendai 980-8579, Japan
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Gong X, Luo G, Yang W, Wu F. Separation of organic acids by newly developed polysulfone microcapsules containing triotylamine. Sep Purif Technol 2006. [DOI: 10.1016/j.seppur.2005.07.030] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shiomori K, Fujikubo K, Kawano Y, Hatate Y, Kitamura Y, Yoshizawa H. Extraction and Separation of Precious Metals by a Column Packed with Divinylbenzene Homopolymeric Microcapsule Containing Tri‐n‐octylamine. SEP SCI TECHNOL 2005. [DOI: 10.1081/ss-120030801] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Shen F, Li AA, Cornelius RM, Cirone P, Childs RF, Brash JL, Chang PL. Biological properties of photocrosslinked alginate microcapsules. J Biomed Mater Res B Appl Biomater 2005; 75:425-34. [PMID: 16035031 DOI: 10.1002/jbm.b.30323] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An alternative form of gene therapy using recombinant cell lines delivering therapeutic products encapsulated in alginate hydrogel has proven effective in treating many murine models. The lack of long-term capsule stability has led to a new strategy to reinforce the microcapsules with a photopolymerized interpenetrating covalent network of N-vinylpyrrolidone (NVP) and sodium acrylate. Here the properties for potential application in gene therapy are reported. In assessing potential toxicity of the unpolymerized residues, HPLC showed that even after 1 week of washing, no toxic monomers could be detected. Their ability to sustain cell growth was monitored with growth of the encapsulated cells in vitro and in vivo. Although the initial photopolymerization caused significant cell damage, the cells were able to recover normal growth rates thereafter. After implanting into mice, the NVP-modified capsules showed a high level of biocompatibility as measured by hematological and biochemical functional tests. There was also no difference in the amount and type of plasma proteins adsorbing to the NVP-modified and the classical alginate capsules, thus indicating their similar biological compatibility. Both in vitro and in vivo tests confirmed that the NVP-modified capsules were more resistant to osmotic stress than the alginate microcapsules. Furthermore, when applied to the treatment of a murine model of human cancer by delivering encapsulated cells secreting angiostatin, the NVP-modified microcapsules suppressed tumor growth as successfully as the regular alginate microcapsules. In conclusion, the covalently modified microcapsules have shown a high level of biocompatibility, safety, increase in stability, and clinical efficacy for use as immunoisolation devices in gene therapy.
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Affiliation(s)
- Feng Shen
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
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Yang W, Luo G, Wu F, Chen F, Gong X. Di-2-ethylhexyl phosphoric acid immobilization with polysulfone microcapsules. REACT FUNCT POLYM 2004. [DOI: 10.1016/j.reactfunctpolym.2004.04.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Shiomori K, Yoshizawa H, Fujikubo K, Kawano Y, Hatate Y, Kitamura Y. Extraction Equilibrium of Precious Metals from Aqueous Acidic Solutions Using Divinylbenzene Homopolymeric Microcapsules Encapsulating Ternary Amine as a Core Material. SEP SCI TECHNOL 2003. [DOI: 10.1081/ss-120024719] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Frère Y, Danicher L, Laguécir A, Loureiro JM, Burgard M. Complexing capsules--metal extraction and modeling of ion transfer. Int J Pharm 2002; 242:393-7. [PMID: 12176287 DOI: 10.1016/s0378-5173(02)00224-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Polyamide complexing capsules containing a poly(acrylic acid) gel are synthesized by a two steps polymerization process with various diameters (10 microm for microcaps or 200 microm for mcaps). A cationic exchange between gel carboxylic functions and metal ions is realized. Extraction and stripping measurements show that the composition of the capsule membrane doesn't hinder the mass transfer. A model, taking account only of the diffusion in the gel phase, is studied.
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Affiliation(s)
- Y Frère
- Institut Charles Sadron, 6, rue Boussingault, 67083 Cedex, Strasbourg, France.
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