Shielded molecularly imprinted polymers prepared with a selective surface modification

2005 ◽  
Vol 43 (10) ◽  
pp. 2048-2060 ◽  
Author(s):  
Yoshiyuki Watabe ◽  
Ken Hosoya ◽  
Nobuo Tanaka ◽  
Takuya Kubo ◽  
Takuya Kondo ◽  
...  
Keyword(s):  
Surface Modification ◽  
Molecularly Imprinted Polymers ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Selective Surface Modification

scholarly journals Enhancement of Electrochemical Detection of Gluten with Surface Modification Based on Molecularly Imprinted Polymers Combined with Superparamagnetic Iron Oxide Nanoparticles

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 91
Author(s):  
Dalawan Limthin ◽  
Piyawan Leepheng ◽  
Annop Klamchuen ◽  
Darinee Phromyothin
Keyword(s):  
Surface Modification ◽  
Electrochemical Detection ◽  
Molecularly Imprinted Polymers ◽  
Electrochemical Impedance ◽  
Superparamagnetic Iron Oxide ◽  
Precipitation Method ◽  
Simple Method ◽  
Molecularly Imprinted ◽  
Plate Electrode ◽  
Imprinted Polymers

Novel molecularly imprinted polymers (MIPs) represent a selectively recognized technique for electrochemical detection design. This rapid and simple method prepared via chemical synthesis consists of a monomer crosslinked with an initiator, whereas low sensitivity remains a drawback. Nanomaterials can improve charge transfer for MIP surface modification in order to overcome this problem. SPIONs have semiconductor and superparamagnetic properties that can enhance carrier mobility, causing high sensitivity of electrochemical detection. In this work, surface modification was achieved with a combination of MIP and SPIONs for gluten detection. The SPIONs were synthesized via the chemical co-precipitation method and mixed with MIPs by polymerizing gluten and methyl methacrylate (MMA), presented as a template and a monomer. Magnetic MIP (MMIP) was modified on a carbon-plate electrode. The morphology of modified electrode surfaces was determined by scanning electron microscopy–energy-dispersive X-ray spectrometry. The performance of the MMIP electrode was confirmed by cyclic voltammetry, amperometry, and electrochemical impedance spectroscopy. The MMIP electrode for gluten detection shows a dynamic linear range of 5–50 ppm, with a correlation coefficient of 0.994 and a low detection limit of 1.50 ppm, which is less than the U.S. Food and Drug Administration requirements (20 ppm); moreover, it exhibits excellent selectivity, sensitivity, stability, and reproducibility.

Detection of nonfluorescent cyhalothrin in honey by a spheral SiO2-based particle coating with thin fluorescent molecularly imprinted polymers film

RSC Advances ◽  
2015 ◽  
Vol 5 (116) ◽  
pp. 96158-96164 ◽  
Author(s):  
Lin Gao ◽  
Xiuying Li ◽  
Chunxiang Li ◽  
Yongsheng Yan
Keyword(s):  
Surface Modification ◽  
Fluorescence Detection ◽  
Molecularly Imprinted Polymers ◽  
Core Shell ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Particle Coating ◽  
Ultra Trace

In this study, we report a general protocol for making core–shell SiO2@KH570-MIP based on the surface modification of SiO2 beads for the selective fluorescence detection of ultra trace cyhalothrin.

Preparation of Benzonic Acid Molecularly Imprinted Polymers and Its Adsorption Property

2010 ◽  
Vol 38 (3) ◽  
pp. 401-404
Author(s):  
Da-Wei LOU ◽  
Ying-Jie YANG ◽  
Guang HUANG ◽  
Ping-Li PU ◽  
Xin-Qing LEE ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Adsorption Property ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

scholarly journals Adsorption Capacity and Selectivity of Molecularly Imprinted Polymers towards β-Sitosterol

2019 ◽  
Vol 31 (11) ◽  
pp. 2527-2531
Author(s):  
St. Fauziah ◽  
N.H. Soekamto ◽  
P. Budi ◽  
P. Taba
Keyword(s):  
Adsorption Capacity ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Polymerization Reaction ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Sample Extract ◽  
Uv Visible ◽  
Adsorption Desorption ◽  
Isothermal Equation

Molecularly imprinted polymers (MIP) as an adsorbent has been synthesized using β-sitosterol as molecule template on free radical polymerization reaction. The capacity and selectivity of the adsorption from MIP to β-sitosterol was studied in this study. The β-sitosterol concentration in the adsorption-desorption test and the MIP selectivity test were analyzed by UV-visible and HPLC. The MIP obtained from the synthesis results in a high adsorption capacity. Based on the Freundlich adsorption isothermal equation, the adsorption capacity (k) was found to be 1.24 mg/g. The MIP can adsorb 100 % β-sitosterol while cholesterol was only 3 %. The MIP is most selective to β-sitosterol, therefore, has high potential to apply as adsorbent at solid phase extraction method to isolate β-sitosterol from sample extract.

Analytical Methods Incorporating Molecularly Imprinted Polymers (MIPs) for the Quantification of Microcystins: A Mini-Review

2021 ◽  
pp. 1-15
Author(s):  
P. U. Ashvin Iresh Fernando ◽  
Matthew W. Glasscott ◽  
Kaytee Pokrzywinski ◽  
Brianna M. Fernando ◽  
Gilbert K. Kosgei ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Analytical Methods ◽  
Molecularly Imprinted ◽  
Imprinted Polymers
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