A morphological study of molecularly imprinted polymers using the scanning electron microscope

González, Gema Paniagua; Hernando, Pilar Fernández; Alegría, Jesús

doi:10.1016/j.aca.2005.10.034

Cited by 75 publications

(44 citation statements)

References 11 publications

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“…The SEM micrographs were revealed that Py-IP with imprinting effect of pyrogallol showed relatively rougher microstructure. The rougher surface was attributed to the binding occurred, resulting in cavities when the template was removed (González et al, 2006). A few similar observations were also reported, which were attributed to the differences in surface morphology between the imprinted polymer and the NIPs (Ahamed et al, 2013;Santos et al, 2014;Sikiti et al, 2014) studied by SEM.…”

Section: Discussionsupporting

confidence: 62%

Isotherm Studies of Pyrogallol-imprinted Polymers via Precipitation Polymerization

Othman

Yusof

Daik³

et al. 2017

IJTech

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Molecularly imprinted polymers (MIPs) have been the most convenient and selected methods in detection and extraction for many types of specific targets in various fields. MIPs were prepared by mixing template molecule with functional monomer in the presence of cross-linker, solvent and initiator. The selectivity of MIPs is strongly influenced by the types of functional monomer, solvent and polymerization process used. Pyrogallol-imprinted polymer (Py-IP) and nonimprinted polymer (NIP) were synthesized via precipitation polymerization using 4-vinylpyridine (4-VP), divinylbenzene (DVB) and azobisisobutyronitrile (AIBN) as functional monomer, cross-linker and initiator, respectively. Pyrogallol (Py) was used as a target molecule. The synthesized polymers were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and UV-Visible Spectroscopy (UV-Vis). In this study, adsorption capacity was measured by the dosage effect, contact time and selectivity study. Results showed that maximum adsorption capacity by Py-IP is above 50%. The Selectivity study shows that k' is >1, which indicates that Py-IP has a good selectivity towards pyrogallol. Therefore, it has a good potential to be used as an adsorbent.

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Section: Discussionsupporting

confidence: 62%

Isotherm Studies of Pyrogallol-imprinted Polymers via Precipitation Polymerization

Othman

Yusof

Daik³

et al. 2017

IJTech

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“…Gonzalez et al [55] systemic studied the non-covalent MIP synthesized by "bulk" polymerization using digoxin as template. These polymers were synthesized under different conditions, i.e., changing the functional monomers employed (methacrylic acid or 2-vinylpyridine), the porogenic solvents (acetonitrile or dichloromethane) used, different polymerization and extraction processes were used.…”

Section: Bulk Polymerizationmentioning

confidence: 99%

Characteristic and Synthetic Approach of Molecularly Imprinted Polymer

Yan

Row

2006

IJMS

462

231

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Abstract:Molecularly imprinted polymers (MIP) exhibiting high selectivity and affinity to the predetermined molecule (template) are now seeing a fast growing research. However, optimization of the imprinted products is difficult due to the fact that there are many variables to consider, some or all of which can potentially impact upon the chemical, morphological and molecular recognition properties of the imprinted materials. This review present a summary of the principal synthetic considerations pertaining to good practice in the polymerization aspects of molecular imprinting, and is primarily aimed at researcher familiar with molecular imprinting methods but with little or no prior experience in polymer synthesis. The synthesis, characteristic, effect of molecular recognition and different preparation methods of MIP in recent few years are discussed in this review, unsolved problems and possible developments of MIP were also been briefly discussed.

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“…As from Table 3, slightly greater NAM selectivity over benzamide and pyridine were observed for MIP9 and MIP10, suggesting better aqueous selectivity of these polymers over the others. MIPs can have various physical configurations depending on the method used in the polymerization process [34]. Scanning electron microscopy (SEM) was thus used to characterize the morphology of the obtained MIPs.…”

Section: Substrate Selectivity Of Mipsmentioning

confidence: 99%

Synthesis of nicotinamide-imprinted polymers and their binding performances in organic and aqueous media

et al. 2008

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Abstract:To obtain molecularly imprinted polymers capable of selective rebinding with nicotinamide (NAM), NAM imprinted polymers were synthesized via bulk polymerization using various functional monomers and cross-linkers. The NAM recognition properties of these polymers were investigated in organic and aqueous solvents by equilibrium rebinding experiments. The results show that the imprinted polymer prepared using 1:4:4 molar ratio of NAM/MAA/TRIM in dichloromethane exhibited the greatest NAM binding capacity and selectivity. This polymer is potentially valuable for the analysis of NAM in complex matrices where selective isolation and identification are needed.

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A morphological study of molecularly imprinted polymers using the scanning electron microscope

Cited by 75 publications

References 11 publications

Isotherm Studies of Pyrogallol-imprinted Polymers via Precipitation Polymerization

Isotherm Studies of Pyrogallol-imprinted Polymers via Precipitation Polymerization

Characteristic and Synthetic Approach of Molecularly Imprinted Polymer

Synthesis of nicotinamide-imprinted polymers and their binding performances in organic and aqueous media

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