scholarly journals Interaction binding study of dimethylamylamine with functional monomers to design a molecular imprinted polymer for doping analysis

2018 ◽  
Vol 8 (10) ◽  
pp. 25-31
Keyword(s):  
Binding Study ◽  
Molecular Imprinted Polymer ◽  
Imprinted Polymer ◽  
Doping Analysis ◽  
Functional Monomers

Molecular imprinted polymer to remove tetracycline from aqueous solutions

2015 ◽  
Vol 203 ◽  
pp. 32-40 ◽  
Author(s):  
M. Sánchez-Polo ◽  
I. Velo-Gala ◽  
Jesús J. López-Peñalver ◽  
J. Rivera-Utrilla
Keyword(s):  
Aqueous Solutions ◽  
Molecular Imprinted Polymer ◽  
Imprinted Polymer

Thermodinamic study of a magnetic molecular imprinted polymer for removal of nitrogenous pollutant from gasoline

Fuel ◽  
2017 ◽  
Vol 210 ◽  
pp. 380-389 ◽  
Author(s):  
Liz Nayibe Martínez Saavedra ◽  
Bruno Eduardo Lobo Baeta ◽  
Márcio César Pereira ◽  
Luiz Carlos Alves de Oliveira ◽  
Adilson Candido da Silva
Keyword(s):  
Molecular Imprinted Polymer ◽  
Imprinted Polymer

Computational study on acetamiprid-molecular imprinted polymer

2019 ◽  
Vol 25 (4) ◽  
Author(s):  
Camilla F. Silva ◽  
Keyller B. Borges ◽  
Clebio S. Nascimento
Keyword(s):  
Computational Study ◽  
Molecular Imprinted Polymer ◽  
Imprinted Polymer

scholarly journals Interaction Study, Synthesis and Characterization of Molecular Imprinted Polymer Using Functional Monomer Methacrylate Acid and Dimethylamylamine as Template Molecule

2018 ◽  
Vol 16 (1) ◽  
pp. 12 ◽  
Author(s):  
Saeful Amin ◽  
Sophi Damayanti ◽  
Slamet Ibrahim
Keyword(s):  
Synthesis And Characterization ◽  
Template Molecule ◽  
Functional Monomer ◽  
Molecular Imprinted Polymer ◽  
Glycol Dimethacrylate ◽  
Interaction Study ◽  
Imprinted Polymer ◽  
Infrared Spectrophotometer ◽  
Scanning Electron

The research related to the interaction study, synthesis and characterization of molecular imprinted polymer using dimethylamylamine (DMAA) as the template molecule and the functional monomer methacrylate acid has been conducted. Molecular Imprinted Polymer (MIP) is a separation method made by the molecule template in the polymer matrix followed by removing the template molecule by washing for giving the permanent framework groove. The MIP was made by mixing the DMAA as the template molecule, with the methacrylate acid as the functional monomer, and the ethylene glycol dimethacrylate (EGDMA) as the crosslinker with the ratio 1:6:20. Porogen solvents used were the chloroform and the initiator azobisisobutyronitrile (AIBN). The crystal MIP and the NIP without the DMAA were characterized using Infrared Spectrophotometer (FTIR), and the result showed that there have been differences among the MIP, the NIP and the MIP after being extracted. The characterization using Scanning Electron Microscope (SEM) showed that the NIP as the comparison having flat morphology, while the MIP having irregular morphology and less pores. Then the MIP after being extracted has irregular, rough morphology and a lot of pores. The result reveals the interaction between the DMAA and the methacrylate acid that is the hydrogen bonded with the Gibbs free energy obtained is -5.434 j/mol. The imprinting factor of 2,353 is obtained. The highest desorption descending capacity is chloroform with the MIP 738% better. For the MIP and NIP methanol, it is found that the MIP is 123% better. Then the MIP which is desorbed by the chloroform is better 602% than the MIP resorbed by the methanol, and the ethyl acetate cannot desorb the DMAA.

scholarly journals Determination of N-methyl-1-phenol-2-propanamine trace amounts in urine samples with molecular-imprinted polymer based sorbents

2017 ◽  
Vol 21 (1) ◽  
pp. 33-40
Author(s):  
V. N. Bykov ◽  
A. S. Nikiforov ◽  
V. M. Goncharov ◽  
V. V. Vasin ◽  
A. M. Sventitsckaya
Keyword(s):  
Urine Samples ◽  
Molecular Imprinted Polymer ◽  
Imprinted Polymer

scholarly journals Solid-phase extraction of selected acidic pharmaceuticals from wastewater using a molecularly imprinted polymer

2017 ◽  
Author(s):  
◽  
Silindile Senamile Zunngu
Keyword(s):  
Binding Energy ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Deionized Water ◽  
Phase Extraction ◽  
Functional Monomer ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Functional Monomers ◽  
Cross Linker

In this study, molecular modeling was used to investigate the intermolecular interactions between the functional monomer and ketoprofen which is an acidic pharmaceutical that possesses anti-inflammatory and analgesic activities. Ketoprofen is widely employed in medical care for treating musculoskeletal injury. This led to rational design of a molecularly imprinted polymer (MIP) that is selective to ketoprofen. Density functional theory (DFT) at B3LYP/6-31 level was used to investigate the intermolecular interaction between functional monomers and ketoprofen. Binding energy, ΔE, was used as an indication of the strength of the interaction that occurs between functional monomers and ketoprofen. 2-vinylpyridine (2-VP) as one of the functional monomers gave the lowest binding energy when compared to all the functional monomers investigated. Monomer-template interactions were further experimentally investigated using spectroscopic techniques such as Ultraviolet-visible and Fourier transform infrared (FTIR). A selective MIP for ketoprofen was synthesized using 2-vinylpyridine, ethylene glycol dimethacrylate, 1,1’-azobis(cyclohexanecarbonitrile), toluene/acetonitrile (9:1, v/v), and ketoprofen as a functional monomer, cross-linker, initiator, porogenic mixture, and template, respectively. The polymerization was performed at 60 °C for 16 h, and thereafter the temperature was increased to 80 °C for 24 h to achieve a solid monolith polymer. The non-imprinted polymer (NIP) was synthesized in a similar manner with the omission of ketoprofen. Characterization with thermogravimetric analysis (TGA) and powder X-ray diffraction (XRD) showed that the synthesized polymers were thermally stable and amorphous. Morphology of the particles were clearly visible, with MIP showing rough and irregular surface compared to NIP on the scanning electron microscopy (SEM). The characterization of the prominent functional groups on both MIP and NIP were performed using FTIR and nuclear magnetic resonance (NMR). The existence of hydroxyl was observed in the MIP; this was due to the presence of ketoprofen in the cavity. Prominent carbonyl group was an indication of the cross-linker present in both polymers. The synthesized MIP was applied as a selective sorbent in the solid-phase extraction of ketoprofen from the water. The extracted ketoprofen was monitored by high performance liquid chromatography (HPLC) coupled with UV/Vis detector. Several parameters were investigated for maximum recovery of ketoprofen from the spiked deionized water. The optimum method involved the conditioning of 14 mg MIP sorbent with 5 mL of methanol followed by equilibrating with 5 mL of deionized water adjusted to pH 2.5. Thereafter, 50 mL sample (pH 5) was loaded into the cartridge containing MIP sorbent followed by washing and eluting with 1% TEA/H2O and 100% methanol, respectively. Eluted compounds were quantified with HPLC. MIP was more selective to ketoprofen in the presence of other structural related competitors. The analytical method gave detection limits of 0.23, 0.17, and 0.09 mg L-1 in wastewater influent, effluent, and deionized water, respectively. The recovery for the wastewater influent and effluent spiked with 5 µg L-1 of ketoprofen was 68%, whereas 114% was obtained for deionized water. The concentrations of ketoprofen in the influent and effluent samples were in the ranges of 22.5 - 34.0 and 1.14 - 5.33 mg.L-1, respectively. The relative standard deviation (RSD) given as ± values indicates that the developed analytical method for the analysis of ketoprofen in wastewater was rapid, affordable, accurate, precise, sensitive, and selective.

scholarly journals Optimasi Ukuran dan Jumlah Pori yang Terbentuk Pada Molacularly Imprinted Polymer (MIP) Nano Karbaril (C12H11NO2)

POSITRON ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 14
Author(s):  
Suci Aprilia ◽  
Erry Koryanti ◽  
Idha Royani
Keyword(s):  
Fourier Transform ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Ethylene Glycol ◽  
Methacrylic Acid ◽  
Molecular Imprinted Polymer ◽  
X Ray Diffraction ◽  
Imprinted Polymer ◽  
X Ray ◽  
Scanning Electron

Telah dilakukan pembuatan molecular imprinted polymer (MIP) nano karbaril dengan metode cooling-heating. Pembuatan MIP nano karbaril bertujuan untuk mendapatkan material sensor yang potensial dalam aplikasinya. Dalam penelitian ini, bahan aktif karbaril di-milling dengan variasi waktu 10 menit dan 15 menit. Pada proses polimerisasi melibatkan templat nano karbaril, methacrylic acid (MAA) sebagai monomer fungsional, ethylene glycol dimathacrylate (EDMA) sebagai crosslinker, benzoil peroksida (BPO) sebagai inisiator, dan acetonitril sebagai pelarut yang disintesis menggunakan metode cooling-heating. Dengan cara yang sama, non-imprinted polymer (NIP) juga dibuat sebagai polimer kontrol.  NIP merupakan polimer yang dibuat dengan komposisi dan cara yang sama dengan MIP, namun tidak ditambahkan nano karbaril sebagai zat aktif. Pembuangan templat pada proses ekstraksi sangat berperan penting untuk menghasilkan material sensor yang baik. MIP, polimer, dan NIP yang dihasilkan di karakterisasi menggunakan Fourier transform infrared (FTIR) dan sampel terbaik dideteksi lebih lanjut dengan uji x-ray diffraction (X-RD), dan scanning electron microscope (SEM). Hasil FTIR menunjukkan bahwa gugus fungsi spesifik nano karbaril pada NIP tidak tampak bila dibandingkan dengan spektra MIP, dan terjadi penurunan persen transmitansi pada polimer dan peningkatan % transmitansi pada MIP. Hal ini menjelaskan bahwa terjadi penurunan konsentrasi nano karbaril pada MIP setelah proses ektraksi. Hasil X-RD menunjukkan ukuran kristal yaitu 9,16 Å. Hasil SEM menunjukkan bahwa jumlah pori tercetak dengan ukuran ≤100 nm yaitu 383 pori.  Data ini mengindikasikan bahwa MIP nano karbaril potensial untuk diaplikasikan sebagai material sensor.

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