Adsorption selectivity of phenylalanine imprinted polymer prepared by the Wet Phase Inversion Method

Park, Joong Kon; Kim, Seong Joon; Lee, Jeong Woo

doi:10.1007/bf02706937

Cited by 12 publications

(9 citation statements)

References 18 publications

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“…MIPMs prepared by washing 40 hrs after polymerization showed reversed adsorption selectivity, 0.68. This reversed adsorption selectivity was sometimes found in the previous report concerning the batch adsorption [12]. However, the MIPMs prepared by washing more than 100 hrs showed positive adsorption selectivity to the template molecule, 1.81.…”

Section: Complete Washing Requirement For Adsorption Selectivitymentioning

confidence: 49%

“…The absorbance of the substrate solution was monitored at 254 nm by a UV detector. The adsorption selectivity (α) of the D-Phe imprinted polymeric microbeads was obtained with the following formula: [12][13][14].…”

Section: March 2009mentioning

confidence: 99%

“…The new modified suspension polymerization was developed to overcome the shortcomings of bulk polymerization and also to improve the adsorption characteristics of MIP microbeads (MIPMs) prepared by the conventional polymerization methods [8][9][10][11][12][13][14]. A novel modified suspension polymerization method utilized a surfactant in a conventional suspension polymerization mixture [15].…”

Section: Introductionmentioning

confidence: 99%

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Preparation of D-phenylalanine imprinted microbeads by the modified suspension polymerization using a magnetic impeller

Lee

Park

2009

Korean J. Chem. Eng.

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Molecularly imprinted polymeric microbeads (MIPMs) were prepared by using a magnetic impeller by the modified suspension polymerization method with D-phenylalanine (Phe) as the water-soluble template without derivatization, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linker, toluene as the porogen, polyvinyl alcohol as the stabilizer, and sodium dodecyl sulfate as the surfactant. The mean diameter of MIPMs decreased from 12.45 µm to 8.86 µm by using a simple magnetic impeller instead of a conventional simple straight-blade turbine impeller during suspension polymerization. The adsorption selectivity of MIPMs prepared with a magnetic impeller was much improved as compared to the adsorption selectivity of MIPMs prepared with a conventional simple straight-blade turbine impeller. The adsorption selectivity of MIPMs changed from reversed adsorption (less than 1) to positive (higher than 1) as the washing time increased after suspension polymerization.

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Section: Complete Washing Requirement For Adsorption Selectivitymentioning

confidence: 49%

Section: March 2009mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation of D-phenylalanine imprinted microbeads by the modified suspension polymerization using a magnetic impeller

Lee

Park

2009

Korean J. Chem. Eng.

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“…717 The poly(acrylonitrile-co-acrylic acid), DMSO and water system developed by Kobayashi was used by Trotta et al for the phase-inversion imprinting of naringin 713 and by Park and Seo for the phase-inversion imprinting of Phe. 712,714 Ulbricht imprinted Rhodamine B in sulfonated polysulfone/ cellulose acetate/polyethylene glycol membranes using this approach and studied adsorption of the template in batchbinding and filtration/solid-phase extraction experiments, but did not make comparisons with other compounds. 715 A similar phase-inversion approach was developed by Shinkai et al by casting water-THF mixed solutions of poly(vinylchloride-co-acrylic acid) imprinted with metal ions, 525,526 forming thin films on polyethylene plates, whose ability to rebind the template was studied using IR spectroscopy.…”

Section: Imprinted Acrylate/vinyl/acrylamide Polymers For Selective Dmentioning

confidence: 99%

Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003

Andersson²,

et al. 2006

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Over 1450 references to original papers, reviews and monographs have herein been collected to document the development of molecular imprinting science and technology from the serendipitous discovery of Polyakov in 1931 to recent attempts to implement and understand the principles underlying the technique and its use in a range of application areas. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by papers dealing with fundamental aspects of molecular imprinting and the development of novel polymer formats. Thereafter, literature describing attempts to apply these polymeric materials to a range of application areas is presented.

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“…Similarly, it also indicates that at pH 2 the maximum selectivity of LIBs, DIBs and NIBs was 1.62, 1.59 and 1.02, respectively. Park et al [5] and Chen et al [37] reported the high adsorption capacity and selectivity of template was obtained at lower pH rather than at higher pH. According to them, the basic reason for the higher adsorption capacity and selectivity at acidic conditions was the presence of higher number of COOH groups in the polymer matrix as well as on the template.…”

Section: Effect Of Ph and Templatementioning

confidence: 96%

Highly improved adsorption selectivity of L-phenylalanine imprinted polymeric submicron/nanoscale beads prepared by modified suspension polymerization

Shah

Ul-Islam

et al. 2011

Korean J. Chem. Eng.

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Molecularly imprinted polymer (MIP) submicron/nanoscale beads selective for L-Phenylalanine (L-Phe) and D-Phe as well as non-imprinted beads were prepared by modified suspension polymerization involving agitation of the reaction mixture at high rotation speed under safe radical conditions. The effects of pH, template and concentration of racemate solution on the performance of the phenylalanine (Phe) imprinted polymeric submicron/nanoscale beads were studied. L-Phe-imprinted submicron/nanoscale beads prepared for the first time by modified suspension polymerization showed enhanced adsorption capacity and selectivity over those of D-Phe imprinted and non-imprinted beads. Maximum adsorption capacity, 0.35 mg/g, and selectivity, 1.62, of L-Phe imprinted submicron/nanoscale beads were higher than the adsorption capacities, 0.30 and 0.19 mg/g, and selectivities, 1.59 and 1.02, of D-Phe imprinted and nonimprinted submicron/nanoscale beads, respectively. FE-SEM analyses revealed that L-and D-Phe imprinted beads were larger (100 nm-1.5 µm) than non-imprinted nanobeads (100-800 nm). 13 C CP-MAS NMR spectroscopy helped in correlating the bead sizes and the extent of reaction during polymerization. Similarly, FT-IR study was used for evaluation of structural characteristics of the prepared Phe-imprinted and non-imprinted beads. The preparation of Phe-imprinted submicron/nanoscale beads with improved adsorption and separation properties and the study of effect of template on the size and performance of the prepared beads are suitable from both economical and research point of view in MIP field.

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Adsorption selectivity of phenylalanine imprinted polymer prepared by the Wet Phase Inversion Method

Cited by 12 publications

References 18 publications

Preparation of D-phenylalanine imprinted microbeads by the modified suspension polymerization using a magnetic impeller

Preparation of D-phenylalanine imprinted microbeads by the modified suspension polymerization using a magnetic impeller

Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003

Highly improved adsorption selectivity of L-phenylalanine imprinted polymeric submicron/nanoscale beads prepared by modified suspension polymerization

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