Synthesis and characterization of molecularly imprinted polymers for selective solid-phase extraction of pseudoephedrine

Arabzadeh, Naghmeh; Abdouss, Majid

doi:10.1134/s1061933x10040022

Cited by 24 publications

(23 citation statements)

References 40 publications

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“…The binding of both the templates was monitored by using RP-HPLC. The distribution ratios (mL g −1 ) of Piperine between the MIPs or NIP in the porogen (acetonitrile) were determined [41] by the following equation:

\begin{matrix} T1 \\ Distribution ratio: K_{D} = \frac{(C_{i} - C_{f}) V}{C_{i} m}, \end{matrix}

where C i is the initial Piperine concentration in the solution, C f is the final Piperine concentration in the solution, V is the volume of porogen (ACN) used, and m is the mass of MIP/NIP used.…”

Section: Methodsmentioning

confidence: 99%

“…The selectivity coefficients for Piperine relative to binding competitor Caffeine for MIP 3 and NIP can be calculated [41] by

\begin{matrix} T1 \\ Selectivity coefficient: K_{Piperine/Caffeine}^{sel} = \frac{K_{D}^{Piperine}}{K_{D}^{Caffeine}}, \end{matrix}

where K D Piperine is the batch binding assay of MIP/NIP for Piperine and K D Caffeine is the batch binding assay of MIP/NIP for Caffeine.…”

Section: Methodsmentioning

confidence: 99%

“…The relative selectivity coefficient ( k ′) was determined [41] by the following equation:

\begin{matrix} T1 \\ k^{'} = \frac{k (M I P 3)}{k (N I P)} . \end{matrix}

…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and Characterization of Molecular Imprinting Polymer Microspheres of Piperine: Extraction of Piperine from Spiked Urine

Roland

Bhawani

2016

Journal of Analytical Methods in Chemistry

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Molecularly imprinted polymer (MIP) microspheres for Piperine were synthesized by precipitation polymerization with a noncovalent approach. In this research Piperine was used as a template, acrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linker, and 2,2′-azobisisobutyronitrile (AIBN) as an initiator and acetonitrile as a solvent. The imprinted and nonimprinted polymer particles were characterized by using Fourier transform infrared spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM). The synthesized polymer particles were further evaluated for their rebinding efficiency by batch binding assay. The highly selected imprinted polymer for Piperine was MIP 3 with a composition (molar ratio) of 0.5 : 3 : 8, template : monomer : cross-linker, respectively. The MIP 3 exhibits highest binding capacity (84.94%) as compared to other imprinted and nonimprinted polymers. The extraction efficiency of highly selected imprinted polymer of Piperine from spiked urine was above 80%.

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\begin{matrix} T1 \\ Distribution ratio: K_{D} = \frac{(C_{i} - C_{f}) V}{C_{i} m}, \end{matrix}

Section: Methodsmentioning

confidence: 99%

“…The selectivity coefficients for Piperine relative to binding competitor Caffeine for MIP 3 and NIP can be calculated [41] by

\begin{matrix} T1 \\ Selectivity coefficient: K_{Piperine/Caffeine}^{sel} = \frac{K_{D}^{Piperine}}{K_{D}^{Caffeine}}, \end{matrix}

where K D Piperine is the batch binding assay of MIP/NIP for Piperine and K D Caffeine is the batch binding assay of MIP/NIP for Caffeine.…”

Section: Methodsmentioning

confidence: 99%

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Synthesis and Characterization of Molecular Imprinting Polymer Microspheres of Piperine: Extraction of Piperine from Spiked Urine

Roland

Bhawani

2016

Journal of Analytical Methods in Chemistry

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“…Beyond These results are consistent with Tamayo et al [25], who stated that uniformly sized imprinted polymers can be formed using a noncovalent imprinting approach via precipitation polymerization. Arabzadeh and Abdouss [26] indicated that interaction between the monomer and the template could also result in uniform particles with clean surfaces. Renkecz et al [27] explored the effect of different functional monomers, cross-linkers and polymerization solvents on the morphology of polymer beads prepared by precipitation polymerization.…”

Section: Optimization Of Quantity and Time Needed For Maximum Pre-conmentioning

confidence: 99%

Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Semong¹,

Batlokwa²

2017

Molecular Imprinting

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This paper presents the synthesis, optimization and application of a molecularly imprinted polymer (MIP) sorbent for the selective extraction and pre-concentration of the potent toxin, aflatoxin B1 (AFB1), from the child weaning food, Tsabana (manufactured in Serowe, Botswana). As a food safety regulatory measure, Tsabana must be cleared of hazardous aflatoxins, especially AFB1, before consumption. This is because AFB1 is the most common and potent of the aflatoxins commonly found in cereals. Accurate analysis of AFB1 is challenging because it exists in very low concentrations in complex, ‘dirty’ matrices such as food, making it difficult to detect using analytical instruments, even if these analytical techniques have sensitivities at the femto level. The MIP extraction sorbent synthesized in this paper deals with these challenges by selectively pre-concentrating AFB1 from real Tsabana samples, successfully achieving a pre-concentration factor of 5 and therefore significantly increasing ABF1 signal intensity for easier detection. Further advantages of this system include the short time (25.0 minutes) and reasonable optimal MIP dose (20.0 mg) needed for maximum AFB1 extraction by the sorbent. Scanning electron microscopy revealed that the prepared AFB1 powder particles have spherical geometries and reasonably small sizes (800 nm), two advantageous physical characteristics that are associated with excellent sorbent materials.

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“…In order to remove tartrazine from water, several methods are used such as polystyrene anion exchange resins [2], hen feathers [4], magnetic molecularly imprinted polymer (MIP), and [40] photodegradation [3,41]. As seen basically these methods can basically be divided into two major groups, adsorption and degradation, that each group has their advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Enhanced photodegradation of hazardous tartrazine by composite of nanomolecularly imprinted polymer-nanophotocatalyst with high efficiency

Arabzadeh

Khosravi

Mohammadi

et al. 2014

Desalination and Water Treatment

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In this research, a nanocomposite of molecularly imprinted polymer (MIP)-nanophotocatalyst for enhanced photodegradation of tartrazine with high efficiency and nanocomposite of non-imprinted polymer (NIP)-nanophotocatalyst were synthesized by precipitation polymerization and it was carried out in an aqueous medium to employ a green method. Acrylamide as functional monomer, N,N´-methylene-bis-acrylamide as cross-linking agent, tartrazine as a template, and TiO 2 as a nanophotocatalyst were used. The synthesized nanocomposites (MIP-TiO 2 and NIP-TiO 2 ) were characterized by using thermal gravimetric analysis, scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy. The MIP nanocomposite as an effective sorbent was used to extract and photodegrade tartrazine from water media. The effects of pH, time, and concentration of tartrazine solution and kinetics of photodegradation of tartrazine were investigated. The best pH and the optimum time for tartrazine photodegradation in a 10 ml solution containing tartrazine (3 × 10 −5 M) and nanocomposite (1 mg) were obtained to be 2 and 5 h, respectively. The results showed that the MIP nanocomposite has improved the photodegradation of tartrazine by 100% compared to NIP nanocomposite and pure nanophotocatalyst which yielded at 63 and 56%, respectively, under the same condition.

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Synthesis and characterization of molecularly imprinted polymers for selective solid-phase extraction of pseudoephedrine

Cited by 24 publications

References 40 publications

Synthesis and Characterization of Molecular Imprinting Polymer Microspheres of Piperine: Extraction of Piperine from Spiked Urine

Synthesis and Characterization of Molecular Imprinting Polymer Microspheres of Piperine: Extraction of Piperine from Spiked Urine

Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Enhanced photodegradation of hazardous tartrazine by composite of nanomolecularly imprinted polymer-nanophotocatalyst with high efficiency

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