Molecularly Imprinted Conductive Polymers

Faridbod, Farnoush; Zoughi, Sheida; Alizadeh, Taher; Ganjali, Mohammad Reza

doi:10.1021/bk-2022-1405.ch010

Cited by 1 publication

(2 citation statements)

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“…We chose MAA as the functional monomer because it can act as both a hydrogen bond donor and an acceptor, making it suitable for hydrogen bond formation with the furaneol target molecule . During the imprinting process, the MAA functional monomer acts as the hydrogen moiety donor, while the template molecule furaneol serves as the hydrogen moiety acceptor . For the copolymerization, EGDMA was used to cross-link the furaneol-imprinted PMAA and PANI, and BP was used as a radical initiator for the copolymer preparation.…”

Section: Resultsmentioning

confidence: 99%

“…27 During the imprinting process, the MAA functional monomer acts as the hydrogen moiety donor, while the template molecule furaneol serves as the hydrogen moiety acceptor. 28 For the copolymerization, EGDMA was used to cross-link the furaneolimprinted PMAA and PANI, and BP was used as a radical initiator for the copolymer preparation. furaneol-PMAA was coated onto the PANI surface using precipitation polymerization because PMAA possesses a lower density compared to PANI.…”

Section: ■ Introductionmentioning

confidence: 99%

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Development of Molecularly Imprinted Polymer Electrochemical Sensors for Strawberry Sweetness Biomarker Detection

Kim,

Noh,

Cha

et al. 2024

ACS Appl. Polym. Mater.

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This study introduces an approach utilizing a molecularly imprinted electrochemical sensor for monitoring the condition of naturally ripened strawberries. Furaneol, known as 2,5dimethyl-4-hydroxy-3(2H)-furanone, serves as a crucial biomarker associated with strawberry flavor. However, accurately detecting furaneol concentration has posed a challenge due to its nonpolar, unreactive nature, and decomposition using high-performance liquid chromatography and gas chromatography coupled with mass spectrometry, leading to inaccuracies in detection methods. To address this issue, we developed a furaneol-imprinted molecularly imprinted polymer (MIP)-based electrochemical sensor. Our findings demonstrate the specific binding site formation using copolymerization of poly(methacrylic acid) (PMAA) as a sensing material and polyaniline (PANI) as the redox-active matrix to achieve sensitive and selective detection of furaneol using the furaneol-imprinted PANI (Fur-PANI) sensor. A comparison between MIP and nonimprinted polymer-based sensors highlights a robust interaction between furaneol and the MIP, showing an enhanced detection signal of more than twice. We elucidate the mechanism for electrochemical detection of protonated furaneol molecules based on charge carrier transfer through the oxidation mechanism of PANI-based sensors corresponding to the change of current density. Additionally, we investigate the long-term stability of the Fur-PANI sensor over a month, highlighting its potential to serve as a cost-effective, rapid, and durable sensor platform for specific furaneol recognition.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%