Selective Adsorption and Pre-Concentration of Morin by Molecularly Imprinted Polymers with Chitosan Beads as Functional Matrix

2013 ◽  
Vol 781-784 ◽  
pp. 756-759
Author(s):  
Hai Hui Zhang ◽  
Fei Fei Xu ◽  
Yu Qing Duan ◽  
Can Zhang ◽  
Yong Sheng Yan ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Selective Adsorption ◽  
Imprinted Polymer ◽  
Chitosan Beads ◽  
Molecularly Imprinted ◽  
Ft Ir ◽  
Surface Molecular Imprinting Technique ◽  
Elution Step ◽  
Functional Matrix

To separate and enrich morin, a molecularly imprinted polymer (MIP) was synthesized on chitosan by surface molecular imprinting technique and characterized with Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The results showed that MIP possessed better selectivity and recognition for morin in a mixture than that of non-imprinted polymer (NIP). The saturated adsorption amount of MIP was 8.0 mg/g, which was 4-fold than that of NIP, and the recovery in the elution step was 94.87% and 10.97% for MIP and NIP, respectively. These findings indicate MIP could realize the separation and pre-concentration of morin in real sample and may be used for solid phase extraction (MIP-SPE) protocol.

Magnetic molecularly imprinted polymers–silver nanoparticle based micro-solid phase extraction for the determination of polycyclic aromatic hydrocarbons in water samples

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 54702-54708 ◽  
Author(s):  
Mostafa Khajeh ◽  
Marzieh Sharifirad ◽  
Mousa Bohlooli ◽  
Mansour Ghaffari-Moghaddam
Keyword(s):  
Silver Nanoparticle ◽  
Aromatic Hydrocarbons ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Magnetic Molecularly Imprinted Polymers ◽  
Polycyclic Aromatic

In this study, an efficient and sensitive magnetic molecularly imprinted polymer–silver nanoparticle (MMIPS) system was successfully synthesized.

Simple and selective detection of quercetin in extracts of plants and food samples by dispersive-micro-solid phase extraction based on core–shell magnetic molecularly imprinted polymers

2018 ◽  
Vol 42 (19) ◽  
pp. 16144-16153 ◽  
Author(s):  
Arash Asfaram ◽  
Maryam Arabi ◽  
Abbas Ostovan ◽  
Hossein Sadeghi ◽  
Mehrorang Ghaedi
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Food Samples ◽  
Selective Detection ◽  
Phase Extraction ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Magnetic Molecularly Imprinted Polymers

In the present study, a D-μ-SPE clean-up method was established for the analysis of quercetin in extracts of plants and food samples using a magnetic molecularly imprinted polymer as the sorbent by HPLC-UV detection.

scholarly journals Synthesis and characterization of genistein magnetic molecularly imprinted polymers and their application in soy sauce products

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ziqi Xie ◽  
Yunjing Luo ◽  
Zhen Na ◽  
Wei Zhang ◽  
Yufei Zong
Keyword(s):  
Electron Microscopy ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Soy Sauce ◽  
Template Molecule ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Magnetic Molecularly Imprinted Polymers ◽  
Relative Standard ◽  
Surface Molecular Imprinting Technique

AbstractIn this study, a novel method based on genistein magnetic molecularly imprinted polymers (Gen-MMIPs) was developed utilizing a surface molecular imprinting technique, in which genistein was used as the template molecule and Fe3O4 was used as the carrier. The synthesis of Gen-MMIPs was characterized by using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which indicated that the diameter of the Gen-MMIPs was approximately 500 nm. Via analysis with a vibrating sample magnetometer (VSM), the saturation magnetization of Gen-MMIPs was determined to be 24.79 emu g−1. Fourier transform infrared (FT-IR) spectroscopy showed that polymer groups were on the surface of the magnetic carrier. Adsorption experiments suggested that the genistein adsorption capability of Gen-MMIPs was 5.81 mg g−1, and adsorption equilibrium was achieved within 20 min. Gen-MMIPs as dispersive solid-phase extraction (dSPE) adsorbents combined with HPLC were used to selectively separate genistein in soy sauce samples, and the recoveries ranged from 85.7 to 88.5% with relative standard deviations (RSDs) less than 5%, which proved that this method can be used for the detection of genistein residues in real samples.

scholarly journals Synthesis and Characterization of Genistein Magnetic Molecularly Imprinted Polymers and Its Application in Soy Sauce Products

2021 ◽  
Author(s):  
Ziqi Xie ◽  
Yunjing Luo ◽  
Zhen Na ◽  
Wei Zhang ◽  
Yunfei Zong
Keyword(s):  
Electron Microscopy ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Soy Sauce ◽  
Template Molecule ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Magnetic Molecularly Imprinted Polymers ◽  
Relative Standard ◽  
Surface Molecular Imprinting Technique

Abstract In this study, a novel method based on genistein magnetic molecularly imprinted polymers (Gen-MMIPs) was developed by surface molecular imprinting technique, in which genistein was used as the template molecule and Fe3O4 was used as the carrier. The synthesis of Gen-MMIPs were characterized by using of scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which indicated the diameters of Gen-MMIPs were about 500 nm. Through the technique of vibrating sample magnetometer (VSM), the saturation magnetization of Gen-MMIPs were detected as 24.79 emu/g. Fourier transform infrared (FR-IR) spectroscopy showed that polymer groups were on the surface of the magnetic carrier. Adsorption experiment suggested the adsorption capability of Gen-MMIPs to genistein were 1.55 mg/g, and 2 the adsorption equilibrium was achieved within 20 min. Gen-MMIPs as dispersive solid-phase extraction adsorbent combined with HPLC was used to selectively separate genistein in soy sauce samples, the recoveries were ranged from 85.7% to 88.5% with the relative standard deviations (RSD) less than 5%, which proved this method can be used for the detection of genistein residues in real samples.

scholarly journals Determination of sialic acid in serum samples by dispersive solid-phase extraction based on boronate-affinity magnetic hollow molecularly imprinted polymer sorbent

RSC Advances ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 5394-5401 ◽  
Author(s):  
Wei Huang ◽  
Xingyu Hou ◽  
Yukui Tong ◽  
Miaomiao Tian
Keyword(s):  
Sialic Acid ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Imprinted Polymer ◽  
Serum Samples ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

Boronate-affinity magnetic hollow molecularly imprinted polymers were prepared with sialic acid (SA) as a template to selectively extract SA from serum samples coupled with HPLC-UV.

Application of hollow porous molecularly imprinted polymers using K2Ti4O9 coupled with SPE-HPLC for the determination of celecoxib in human urine samples: optimization by central composite design (CCD)

2017 ◽  
Vol 9 (21) ◽  
pp. 3200-3212 ◽  
Author(s):  
S. Ansari
Keyword(s):  
Molecularly Imprinted Polymers ◽  
High Performance ◽  
Solid Phase ◽  
Trace Determination ◽  
Phase Extraction ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Central Composite

Trace determination of celecoxib by hollow porous molecularly imprinted polymer and solid-phase extraction (HPMIP-SPE) coupled with high-performance liquid chromatography with UV detection (HPLC/UV).

Molecularly Imprinted Polymer Nanoparticles for Selective Solid Phase Extraction of Fluvoxamine in Human Urine and Plasma

2019 ◽  
Vol 58 (3) ◽  
pp. 274-279
Author(s):  
Mojtaba Soleimani ◽  
Ameneh Porgham Daryasari ◽  
Parisa Joshani
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Dynamic Range ◽  
Solid Phase ◽  
Polymer Nanoparticles ◽  
Template Molecule ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Selective Determination ◽  
Ft Ir

Abstract In this work, the molecularly imprinted polymer nanoparticles (MIP-NPs) for the selective determination of fluvoxamine have been described. The polymer nanoparticles were synthesized by the polymerization of methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linker, 2,2-azobisisobutyronitrile as an initiator and fluvoxamine as a template molecule. The MIP-NPs were characterized using techniques that included Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM). Imprinted fluvoxamine molecules were removed from the polymeric structure using acetonitrile in methanol (2:8; v/v) as the eluting solvent. The linear dynamic range for fluvoxamine was 10–1200 μg L−1. The developed method was successfully applied to the extraction of fluvoxamine in complex biological samples.

scholarly journals Synthesis of switchable intelligent molecularly imprinted polymers with selective adsorption of ethyl carbamate and their application in electrochemical sensor analysis

RSC Advances ◽  
2018 ◽  
Vol 8 (45) ◽  
pp. 25636-25644 ◽  
Author(s):  
Ming Guo ◽  
Xinge Zhang ◽  
Yilu Zheng ◽  
Dinghai Huang
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Molecularly Imprinted Polymers ◽  
Selective Adsorption ◽  
Ethyl Carbamate ◽  
Diels Alder ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Thermally Responsive ◽  
Sensor Analysis

A cyclodextrin aldehyde based molecularly imprinted polymer with thermally responsive Diels–Alder (DA) linkages of grafted furan-type dienes was polymerized. The synthesized DA-MIP has dienophile characteristics and the specific adsorption of ethyl carbamate (EC) can be switched on or off simply by thermal adjustment.

Preparation of nicotine surface molecularly imprinted polymers for selective solid-phase extraction of nicotine from zero-level refill liquids of electronic cigarettes

2018 ◽  
Vol 10 (29) ◽  
pp. 3637-3644 ◽  
Author(s):  
Juanjuan Xie ◽  
Bo Zhou ◽  
Tiandong Zhang ◽  
Xiaoying Zeng ◽  
Mochou Yang ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Electronic Cigarettes ◽  
Phase Extraction ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Zero Level

Preparation of surface molecularly imprinted polymer for the determination of nicotine in the zero-level refill liquids of electronic cigarettes.

scholarly journals The Selectivity of Molecularly Imprinted Polymers

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1781
Author(s):  
Gergely Becskereki ◽  
George Horvai ◽  
Blanka Tóth
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Practical Method ◽  
Batch Adsorption ◽  
Phase Extraction ◽  
Target Compound ◽  
Binding Assays ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

The general claim about novel molecularly imprinted polymers is that they are selective for their template or for another target compound. This claim is usually proved by some kind of experiment, in which a performance parameter of the imprinted polymer is shown to be better towards its template than towards interferents. A closer look at such experiments shows, however, that different experiments may differ substantially in what they tell about the same imprinted polymer’s selectivity. Following a short general discussion of selectivity concepts, the selectivity of imprinted polymers is analyzed in batch adsorption, binding assays, chromatography, solid phase extraction, sensors, membranes, and catalysts. A number of examples show the problems arising with each type of application. Suggestions for practical method design are provided.

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