Preparation and Recognition Performance of Chloramphenicol Molecularly Imprinted Polymer

2013 ◽  
Vol 448-453 ◽  
pp. 192-196 ◽  
Author(s):  
Hai Xia Shen ◽  
Quan De Liu ◽  
Jie Qin ◽  
Shi Rong Tang
Keyword(s):  
Adsorption Capacity ◽  
Molecularly Imprinted Polymer ◽  
Selective Adsorption ◽  
Recognition Performance ◽  
Kinetic Curve ◽  
Maximum Adsorption Capacity ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Kinetics Of ◽  
Adsorption Quantity

A new molecularly imprinted polymer, which can be used for selective adsorption of chloramphenicol (CAP) from aqueous solutions, was successfully prepared by precipitation polymerization. The adsorption kinetic curve, adsorption isotherm and selective adsorption were measured by static method. The adsorption kinetics of MIPs for CAP reached the equilibrium at about 11 hours. The maximum adsorption capacity was 43.395 mmol/g, and the MIP has much higher adsorption quantity than NIP. Competitive adsorption studies showed that MIP offers the advantages of selectivity toward CAP compared with NIP in the presence other antibiotics. The results showed that the MIP possessed good specific adsorption capacity and selectivity for CAP.

Preparation and Recognition Performance of Molecularly Imprinted Polymers for Cadmium with Surface-Imprinting Technique

2013 ◽  
Vol 807-809 ◽  
pp. 461-465 ◽  
Author(s):  
Dao Bo Zhou ◽  
En Qi Liu ◽  
Shang Long Chen ◽  
Shi Rong Tang
Keyword(s):  
Adsorption Capacity ◽  
Selective Adsorption ◽  
Recognition Performance ◽  
Kinetic Curve ◽  
Maximum Adsorption Capacity ◽  
Surface Imprinting Technique ◽  
Molecular Imprinting Technology ◽  
Ion Imprinted ◽  
Kinetics Of ◽  
Silica Gel Particles

A new Cd (II) ion-imprinted polymer (Cd (II)-IIP), which can be used for selective adsorption of Cd (II) from aqueous solutions, was successfully prepared based on silica gel particles with the help of surface molecular imprinting technology. The adsorption kinetic curve, adsorption isotherm and selective adsorption were measured by static method. The adsorption kinetics of IIPs for Cd (II) reached the equilibrium at about 10 min. The maximum adsorption capacity was 29.36 mg/g, and the IIPs had much higher adsorption quantity than NIPs. Competitive adsorption studies showed that Cd (II)-IIP offers the advantages of selectivity toward targeted Cd (II) compared with NIP in the presence other metal ions. The results showed that the IIPs possessed good specific adsorption capacity and selectivity for Cd (II).

Preparation and Recognition Performance of Pb(II)-Imprinted Polymers with Surface-Imprinting Technique

2014 ◽  
Vol 955-959 ◽  
pp. 1245-1249 ◽  
Author(s):  
Shi Rong Tang ◽  
En Qi Liu ◽  
Quan De Liu ◽  
Tao Zhao
Keyword(s):  
Adsorption Capacity ◽  
Selective Adsorption ◽  
Recognition Performance ◽  
Kinetic Curve ◽  
Maximum Adsorption Capacity ◽  
Surface Imprinting Technique ◽  
Molecular Imprinting Technology ◽  
Ion Imprinted ◽  
Kinetics Of ◽  
Silica Gel Particles

A new Pb (II) ion-imprinted polymer (Pb (II)-IIP), which can be used for selective adsorption of Pb (II) from aqueous solutions, was successfully prepared based on silica gel particles with the help of surface molecular imprinting technology. The adsorption kinetic curve, adsorption isotherm and selective adsorption were measured by static method. The adsorption kinetics of IIPs for Pb (II) reached the equilibrium at about 20 min. The maximum adsorption capacity was 22.72 mg/g, and the IIPs had much higher adsorption quantity than NIPs. Competitive adsorption studies showed that Pb (II)-IIP offers the advantages of selectivity toward targeted Pb (II) compared with NIP in the presence other metal ions. The results showed that the IIPs possessed good specific adsorption capacity and selectivity for Pb (II).

Magnetic mesoporous imprinted adsorbent based on Fe3O4-modified sepiolite for organic micropollutant removal from aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (34) ◽  
pp. 27034-27042 ◽  
Author(s):  
Haicheng Liu ◽  
Wei Chen
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Molecularly Imprinted Polymer ◽  
Maximum Adsorption Capacity ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Micropollutant Removal ◽  
Polymer Adsorbent ◽  
First Time

A novel magnetic molecularly imprinted polymer adsorbent based on a magnetic sepiolite composite was successfully prepared for the first time. It has a maximum adsorption capacity of 69.53 mg g−1for atrazine.

Synthesis, characterization, and theoretical study of an acrylamide-based magnetic molecularly imprinted polymer for the recognition of sulfonamide drugs

e-Polymers ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 141-150 ◽  
Author(s):  
Lei Chen ◽  
Yean Kee Lee ◽  
Yanawut Manmana ◽  
Kheng Soo Tay ◽  
Vannajan Sanghiran Lee ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Molecularly Imprinted Polymer ◽  
Density Functional ◽  
Computational Study ◽  
Maximum Adsorption Capacity ◽  
Binding Property ◽  
Imprinted Polymer ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer

AbstractIn this work, a magnetic molecularly imprinted polymer (MION-MIP) was prepared for the recognition and extraction of sulfadiazine (SDZ). The acrylamide-based MIP was imprinted directly onto the surface of 3-(trimethoxysilyl)propyl methacrylate-modified magnetic iron oxide nanoparticles. The synthesized MION-MIP with a diameter about 100 nm possesses fast adsorption kinetics and high adsorption capacity. The results also indicated that a higher maximum adsorption capacity (775 μg g-1) was achieved by the synthesized MION-MIP. The Langmuir adsorption isotherm model was found to describe well the equilibrium adsorption data. The results from the competitive binding experiment showed that MION-MIP was not only selective toward SDZ but the adsorption of sulfamerazine was also dramatically high. SDZ and sulfamerazine have an almost similar substructure where these two compounds were only differentiated by one methyl group. To explain this result, a computational study was carried out. From a different level of calculation with semiempirical (PM3), Hartree-Fock (HF), and density functional theory (DFT) calculation, SDZ and sulfamerazine showed similar interaction energy and interaction mechanism with the acrylamide monomer. Therefore, both SDZ and sulfamerazine could have the same binding property with the MION-MIP.

scholarly journals Application of molecularly imprinted polymer designed for the selective extraction of ketoprofen from wastewater

Water SA ◽  
2018 ◽  
Vol 44 (3 July) ◽  
Author(s):  
Lawrence Mzukisi Madikizela ◽  
Silindile Senamile Zunngu ◽  
Nomchenge Yamkelani Mlunguza ◽  
Nikita Tawanda Tavengwa ◽  
Phumlane Selby Mdluli ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Selective Extraction ◽  
Bulk Polymerization ◽  
Selectivity Coefficient ◽  
Dynamics Simulation ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Functional Monomer ◽  
Imprinted Polymer ◽  
Molecularly Imprinted

A molecularly imprinted polymer (MIP) that is selective to ketoprofen was synthesized and applied in the adsorption of the target compound from water. The MIP was synthesized using a bulk polymerization method at high temperatures (60–80°C), where ketoprofen, 2-vinylpyridine, ethylene glycol dimethacrylate, toluene and 1,1´-azobis(cyclohexanecarbonitrile) were used as template, functional monomer, cross-linker, porogen and initiator, respectively. Non-imprinted polymer (NIP) was synthesized similarly to the MIP but in the absence of ketoprofen. From molecular dynamics simulation, the nature of interactions that occurred between the template and the functional monomer were found to be based on hydrogen bonding. This was confirmed experimentally, where a high extraction efficiency of ≥ 90% was obtained at acidic conditions (pH 5) due to the protonation of ketoprofen. A contact time of 45 min was sufficient for the maximum adsorption of ketoprofen from 10 mL spiked water using 8 mg of the adsorbent. MIP showed greater selectivity than NIP by achieving a relative selectivity coefficient of 7.7 towards ketoprofen in the presence of structurally related pharmaceuticals. Furthermore, the order of sorption onto the MIPs from water was ketoprofen > fenoprofen > gemfibrozil. From a modelling perspective, the Langmuir adsorption isotherm and pseudo-second-order kinetic model gave the best fit, with maximum adsorption capacity of 8.24 mg·g−1 and sorption rate constant of 0.25 mg·g−1·min−1 for MIP. This was translated to chemisorption of ketoprofen onto the homogeneous MIP binding sites. This work demonstrated the great potential of MIP in selective recognition of ketoprofen from wastewater relative to closely related compounds.

Recognition and selective adsorption of pesticides by superparamagnetic molecularly imprinted polymer nanospheres

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49401-49410 ◽  
Author(s):  
Arameh Masoumi ◽  
Khadijeh Hemmati ◽  
Mousa Ghaemy
Keyword(s):  
Aqueous Solution ◽  
Molecularly Imprinted Polymer ◽  
Selective Adsorption ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Polymer Nanospheres

Selective adsorption of pesticides phosalone, diazinon, and chlorpyrifos from aqueous solution by superparamagnetic molecularly imprinted polymer nanosphere.

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