Selectivity of β-Sitosterol Imprinted Polymers as Adsorbent

Fauziah, St.; Soekamto, Nunuk Hariani; Taba, Paulina; Amran, Muhammad Bachri

doi:10.1088/1742-6596/979/1/012059

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Moreover, the peaks at 1165.4 and 1728.21 cm –1 confirmed the existence of C–O and CO stretching in the EGDMA cross-linker . The variation in the peak intensity at 2958.27 cm –1 (O–H stretching) supported the interaction of the O–H group of MMA with the O–H group of AEA to form H bonds, which was highly visible in the FTIR graph of MIP before AEA removal . The intensity variation at the peak at 1466.35 cm –1 demonstrated C–H bending during polymerization, although the polymer–AEA binding (FTIR graph before AEA removal) lowered the peak intensity.…”

Section: Resultsmentioning

confidence: 99%

Dual-Layered Nanomaterial-Based Molecular Pattering on Polymer Surface Biomimetic Impedimetric Sensing of a Bliss Molecule, Anandamide Neurotransmitter

et al. 2020

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In this endeavor, a novel electrochemical biosensor was designed using multiwall carbon nanotubes (MWCNTs)- and nickel nanoparticles (NiNPs)-embedded anandamide (AEA) imprinted polymer. The NiNPs so synthesized were mortared with MWCNTs and molecularly imprinted polymer (MIP), which enhanced sensitivity and selectivity of the developed sensor, respectively. The characterization methods of AEA-based MIP included X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET) analysis, which supported the successful synthesis of the polymer. Electrochemical studies of fabricated sensor were performed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy in potentiostatic mode (PEIS). In this first phase of AEA-specific sensor development, MWCNT/NiNP/MIP@SPE was found to successfully discriminate between different concentrations of AEA. The developed sensing platform demonstrated a 100 pM–1 nM linear range with a 0.01 nM detection limit (LOD), 0.0149 mA/pM sensitivity, and 50% stability within 4 months. The sensor demonstrated selectivity toward AEA: although acetylcholine (ACh) and dopamine acted as strong interfering components because of their chemical similarity, the spiked AEA samples demonstrated ∼90% recoveries. Hence, our results have passed the first step in AEA detection at home, although with a clinical setup, future advancement is still required.

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Section: Resultsmentioning

confidence: 99%

Dual-Layered Nanomaterial-Based Molecular Pattering on Polymer Surface Biomimetic Impedimetric Sensing of a Bliss Molecule, Anandamide Neurotransmitter

et al. 2020

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“…64, No. 5 (2021) adsorption capabilities also depend on the crosslinker used [11]. Cross-linkers used in this study were ethylene glycol dimethacrylate (EGDMA) which is reactive and can produce polymers with high stiffness so that it is more stable [12].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Molecularly Imprinted Polymers of Di-(2-Ethylhexyl) Phthalate Using The Precipitation Polymerization Method

et al. 2021

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Molecularly Imprinted Polymers (MIP) is a synthetic functional material that can recognize target molecules selectively. This study aims to synthesize and characterize MIP and its performance by precipitation polymerization method using methacrylic acid (MAA), ethylene glycol dimethacrylate (EGDMA), and di-(2-Ethylhexyl) phthalate (DEHP). Characterization of MIP was conducted by FTIR, SEM-EDS, SAA, and UV-Vis spectrophotometer. The effect of concentration and time on MIP adsorption ability against DEHP was also determined. SEM shows that MIP_DEHP_MAA-co-EGDMA surface morphology is arranged from more uniform, less tight, and more fine granules than NIP_MAA-co-EGDMA. FTIR characterization of MIP and NIP (Non-Imprinted Polymers) shows absorption bands of functional groups were -OH, C-H, C=O, and -C=C. SAA characterization shows MIP surface area is 137.660 m 2 /g, total pore volume 0.1555 cc/g, and an average pore radius 22.59 Å that indicates as mesopore material. MIP_DEHP_MAA-co-EGDMA (AE) adsorbed DEHP better than NIP_MAA-co-EGDMA. The difference value of the adsorbed DEHP (qe) was 0.212 mg/g.

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Molecularly imprinted poly(methacrylic acid) based QCM biosensor for selective determination of L-tryptophan

Prabakaran

Jandas

Luo

et al. 2021

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Selectivity of β-Sitosterol Imprinted Polymers as Adsorbent

Cited by 3 publications

References 12 publications

Dual-Layered Nanomaterial-Based Molecular Pattering on Polymer Surface Biomimetic Impedimetric Sensing of a Bliss Molecule, Anandamide Neurotransmitter

Dual-Layered Nanomaterial-Based Molecular Pattering on Polymer Surface Biomimetic Impedimetric Sensing of a Bliss Molecule, Anandamide Neurotransmitter

Synthesis and Characterization of Molecularly Imprinted Polymers of Di-(2-Ethylhexyl) Phthalate Using The Precipitation Polymerization Method

Molecularly imprinted poly(methacrylic acid) based QCM biosensor for selective determination of L-tryptophan

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