Preparation and Recognition Properties of Bovine Hemoglobin Magnetic Molecularly Imprinted Polymers

Kan, Xianwen; Zhao, Qun; Shao, Dalin; Geng, Zhirong; Wang, Zhilin; Zhu, Jun‐Jie

doi:10.1021/jp910060c

Cited by 175 publications

(87 citation statements)

References 38 publications

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“…However, the traditional coating of Fe 3 O 4 particles cannot separate analytes efficiently from the complex biological or environmental samples. Fortunately, a method combining Fe 3 O 4 particles with molecularly imprinted polymer (Fe 3 O 4 @MIP) for extracting analytes from complex samples was developed [10][11][12][13][14]. MIP is a synthetic material which can selectively recognize the template molecule from related analogous compounds, and have been investigated as highly selective sorbents for SPE to concentrate and clean up samples prior to analysis [15,16].…”

Section: Introductionmentioning

confidence: 99%

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Zhang

Liu

et al. 2011

Chemical Engineering Journal

135

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a b s t r a c tA novel magnetic ion-imprinted polymer (Fe 3 O 4 @SiO 2 @IIP) was synthesized by using 3-(2-aminoethylamino)propyltrimethoxysilane (AAPTS) as the functional monomer, tetraethylorthosilicate (TEOS) as the cross-linker and Pb(II) as the template and evaluated for selective extraction of Pb(II) from environmental sample by magnetic solid phase extraction (M-SPE) procedure. The factors affecting separation and preconcentration of the target heavy metals involving pH, eluting solvent and sample volume were studied in detail. Under the optimized experimental conditions, the kinetics adsorption and adsorption capacity of the Fe 3 O 4 @SiO 2 @IIP toward Pb(II) were estimated. The results indicated that the adsorption mechanism is corresponding with the second-order adsorption process with correlation coefficient (r 2 = 0.990), and the maximum adsorption capacity is 19.61 mg g −1 . The relative selectivity factor (ˇ) values of Pb(II)/Cu(II), Pb(II)/Zn(II), Pb(II)/Cd(II) and Pb(II)/Hg(II) are 7. 41, 6.76, 3.75 and 6.39, respectively. The Fe 3 O 4 @SiO 2 @IIP was applied for extracting and detecting of Pb(II) in real environmental samples combined with atomic adsorption spectrometer successfully with high recoveries of 98.0%.

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Section: Introductionmentioning

confidence: 99%

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Zhang

Liu

et al. 2011

Chemical Engineering Journal

135

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“…The most commonly impressed molecule in this type of material is bovine serum albumin (BSA) [17]. These are either synthesized by polymerization carried out in the same manner as in the case of small molecules, however, using other monomers, for example by copolymerization of γ-aminopropyltrimetoxysilane with TEOS on the Fe 3 O 4 surface [52]. Another polymerization method is the use of atom transfer radical polymerisation (ATRP) [53] under mild conditions, increasing the sorption capacity and selectivity of the material to BSA.…”

Section: Application Of Mmips For Analyte Isolation From Biological Smentioning

confidence: 99%

Magnetic molecular imprinted polymers as a tool for isolation and purification of biological samples

2015

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Technology of molecularly imprinted polymers (MIP) has become very popular in recent decades. MIPs are primarily used in medical diagnostics, chromatographic separation and solid phase extraction (SPE); also as sensors and catalysts. In recent years there have been reported benefits of combining molecular imprinted polymers with additional features, e.g. magnetic properties, through the build-up of this type of material on magnetite particles (Magnetic Molecularly Imprinted Polymer -MMIP). This method produces a multifunctional material which has high selectivity and the ability to isolate the analyte from biological and environmental samples, allowing effective purification from such interferents as proteins and fats. This developing branch of new materials for the preparation and purification of complex sample matrices is an interesting alternative to materials routinely used to date, particularly with regard to the immunosorbents. This paper summarizes recent reports regarding MMIP preparation and their application for purification and isolation of compounds from biological matrices.

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“…Methods described by Thorek et al 35 and Kan et al 36 were used for the synthesis of magnetite and its coating with g-MPS, respectively. Magnetic polymers were synthesized with 270 mg UO 2 (NO 3 )2·6H 2 O according to the method outlined by Singh and Mishra 22 with one modification of dispersing 2 g of g-MPS functionalized magnetite in the ternary complex solution of the pre-polymerization mixture.…”

Section: Synthesis Of Magnetic U(vi) Polymers and Leaching Of The U(vi)mentioning

confidence: 99%

Selective adsorption of uranium (VI) on NaHCO3 leached composite γ-Methacryloxypropyltrimethoxysilane coated magnetic Ion-imprinted polymers prepared by precipitation polymerization

Tavengwa¹,

Cukrowska²,

Chimuka³

2015

S.Afr.j.chem

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Ion imprinted nano-magnetic composite polymers for selective removal of hexavalent uranium were prepared by a precipitation polymerization technique in the presence of ã-methacryloxypropyltrimethoxysilane (ã-MPS) coated magnetite and other pre-polymerization reagents. The synthesized magnetic polymers were then leached with NaHCO 3 to produce magnetic ion imprinted polymers (IIPs) with fabricated adsorption sites complementary to the uranyl ions in terms of size and shape. Several parameters were investigated to obtain conditions which gave the optimum adsorption of the uranyl onto the magnetic IIPs and their corresponding controls, magnetic ion non-imprinted polymers (NIPs). The optimum amount of magnetic sorbent, initial concentration and contact time were 50 mg, 2.5 mg L -1 and 45 min, respectively. The adsorption capacity of the magnetic IIP (1.15 ± 0.01 mg g -1 ) was higher than that of the magnetic NIP (0.93 ± 0.02 mg g -1 ). This indicated that the former had a somewhat higher affinity for U(VI) than the later. The magnetic polymers also displayed good selectivity of the order: U(VI) > Ni(II) > Mg(II). After six cycles of use, the magnetic polymers illustrated good stability and reusability.

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Preparation and Recognition Properties of Bovine Hemoglobin Magnetic Molecularly Imprinted Polymers

Cited by 175 publications

References 38 publications

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Magnetic molecular imprinted polymers as a tool for isolation and purification of biological samples

Selective adsorption of uranium (VI) on NaHCO3 leached composite γ-Methacryloxypropyltrimethoxysilane coated magnetic Ion-imprinted polymers prepared by precipitation polymerization

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