Optical resolution of amino acid by ultrafiltration through immobilized DNA membranes

Higuchi, Akon; Furuta, Kentaro; Yomogita, Hiroshi; Yoon, Boo Ok; Hara, Mariko; Maniwa, Syunji; Saitoh, Masatoshi

doi:10.1016/s0011-9164(02)00670-7

Cited by 28 publications

(16 citation statements)

References 4 publications

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“…The conventional techniques for treating dye wastewater, are coagulation-flocculation [4,5], adsorption [6,7], oxidation or ozonation [8,9], biodegradation [10,11] and membrane separation [12,13], but each technique has disadvantages. The operating cost of coagulation-flocculation is high and the rejection of hydrophilic dye is very low.…”

Section: Introductionmentioning

confidence: 99%

Micellar-enhanced ultrafiltration of methylene blue from dye wastewater via a polysulfone hollow fiber membrane

Huang

Zhou

Zeng

et al. 2010

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

Micellar-enhanced ultrafiltration of methylene blue from dye wastewater via a polysulfone hollow fiber membrane

Huang

Zhou

Zeng

et al. 2010

Journal of Membrane Science

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“…Higuchi et al immobilized DNA in ultrafiltration membranes, observed enantioselective permeation, and categorized the composite membranes as channel type membranes. [48][49][50] 3.4.5 Proteins. Albumin which is one of carrier proteins in the blood was applied to optical resolution membranes by Higuchi et al They combined the enantioselective recognition by albumin and ultrafiltration of L-isomer-albumin complexes.…”

Section: Introduction Of Known Chiral Hosts Such As Chiral Crown Ethementioning

confidence: 99%

New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

Aoki

Kaneko

2005

Polym J

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ABSTRACT:Chemistry of macromolecular architecture is one of the fastest growing branches of polymer chemistry. The present review describes macromolecular architectures for permselective membranes relating their structures and permselectivity, and is focused on dendrimers for gas permselective membranes and one-handed helical polymer membranes for enantioselectively permeable membranes (optical resolution). The first part of this review described the three kinds of permselective membranes prepared from pure polydendrons or dendronized polymers having self-membrane-forming ability by us, and from another polymer and dendrimers or hyperbranched polymers as a crosslinker, and from another supporting membrane and dendrimers as a modifier. The membranes from polydendrons showed better oxygen permselectivities than those of conventional polymer membranes. In the second part, three kinds of enantioselectively permeable membranes reported by many researchers, i.e., chiral carriers-containing composite membranes, membranes based on chiral HPLC stationary phase polymers, and chiral molecular imprinting membranes, are reviewed briefly. In particular, the detail of our macromolecular designs of one-handed helical poly(substituted acetylene)s as materials for enantioselectively permeable membranes is discussed as the fourth category. When the content of the chiral groups was higher, the permselectivity was enhanced. The one-handed helical backbones were found to be effective for enantioselective permeation. It was also shown that the disadvantage of this method, i.e., low permeation rate was improved by using thinner membranes. In addition, enantioselectively permeable membranes are classified from the view point of their permeation mechanisms.

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“…DNA has a binding site for enantiomers and its binding constant depends on the stereo-enantiomer. Higuchi as a bio-macromolecular chiral selector in chiral separation technology [112]. Calf thymus DNA (ct DNA) was used for the chiral separation of racemic tyrosine and racemic tryptophan.…”

Section: Optical Resolution Through Chiral Membranesmentioning

confidence: 99%

Methods for separation of organic and pharmaceutical compounds by different polymer materials

Ingole

2014

Korean J. Chem. Eng.

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The discrimination of enantiomers is a challenging task in separation technology, and using a membrane is most promising for separating enantiomers from racemic mixture. The optical resolution of chiral compounds is of interest to researchers working in a variety of fields from analytical, organic and medicinal chemistry, to pharmaceutics and materials, to process engineering for fabricating pharmaceuticals, agrochemicals, fragrances and foods, and so on. There is considerable demand for separation techniques appropriate for the large-scale resolution of chiral molecules. The separation of chiral compounds using chiral or achiral/non-chiral polymeric membranes with or without chiral selector represents a promising system for future commercial applications. This review focuses on an active field of chiral separation, membrane-based enantioseparation technique, which has potential for large-scale production of singleenantiomers. Enantiomeric separation by membrane processes has been studied using various configurations of liquid and solid polymer membranes. Selectivity and permeability of liquid-membranes is reasonably good because the rate of diffusion of solute molecules is high in liquids but has inferior durability and stability. Solid polymer membranes have inferior permeability because diffusion of solute through solids is slow but quite stable and durable; however, commercial application of membrane technology for optical resolution is yet to be realized. Several chiral separation membranes were prepared from chiral polymers where enantioselectivity was generated from chiral carbons in the main chain. However, it is rather tricky to generate excellent chiral separation membranes from chiral polymers alone, because racemic penetrants mainly encounter the flexible side chains of the membrane polymers.

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Optical resolution of amino acid by ultrafiltration through immobilized DNA membranes

Cited by 28 publications

References 4 publications

Micellar-enhanced ultrafiltration of methylene blue from dye wastewater via a polysulfone hollow fiber membrane

Micellar-enhanced ultrafiltration of methylene blue from dye wastewater via a polysulfone hollow fiber membrane

New Macromolecular Architectures for Permselective Membranes—Gas Permselective Membranes from Dendrimers and Enantioselectively Permeable Membranes from One-handed Helical Polymers—

Methods for separation of organic and pharmaceutical compounds by different polymer materials

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