Reagentless Impedimetric Sensors Based on Aminophenylboronic Acids

Andreev, Evgueni M.; Komkova, Maria A.; Никитина, Вита Н.; Karyakin, Arkady A.

doi:10.1134/s1061934819010040

Cited by 7 publications

(2 citation statements)

References 45 publications

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“…[19] In general, polymerization of pAniBA hardly proceeds because the metasubstituted, strong electron-withdrawing boronic acid moiety inhibits the electrophilic attack by the radical cations. [20] Therefore, fluoride ions that strongly bind boronic acids, thereby altering the electron affinity, are often utilized for successful polymerization. [21,22] In this regard, our results suggest that the electrostatic interaction between PA and AniBA affected the electron affinity of the monomer and facilitated the polymerization of pAniBA.…”

Section: Design and Characterization Of Phytic Acid-doped Paniba Thin...mentioning

confidence: 99%

Polyaniline‐Based Nanostructure Interface for Signal‐to‐Noise Ratio Enhancement in Potentiometric Enzyme‐Free Biosensors

Nishitani

Man

Noguchi

et al. 2022

Adv Materials Inter

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Reduction of nonspecific signals (noise) in electrochemical biosensors is important for the realization of enzyme‐free, point‐of‐care (POC) diagnostic devices. In this study, a simple biosensor interface that simultaneously realizes analyte signal enhancement and noise reduction to increase signal‐to‐noise ratio in a field‐effect transistor‐based potentiometric biosensor is proposed. As a proof‐of‐concept, a phytic‐acid‐doped self‐functionalized polyaniline (pAni)‐based nanostructure is designed. It is shown that the incorporation of gold nanoparticles in the nanostructure increases the signal intensity in serotonin sensing. Moreover, the phenylboronic acid moiety in the pAni backbone and porous nanostructure of the pAni nanostructure reduces the interfering noise generated by catecholamines and human serum albumin. It is believed that this study will contribute to the realization of versatile and multiplexed POC diagnostic devices in the future.

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Section: Design and Characterization Of Phytic Acid-doped Paniba Thin...mentioning

confidence: 99%

Polyaniline‐Based Nanostructure Interface for Signal‐to‐Noise Ratio Enhancement in Potentiometric Enzyme‐Free Biosensors

Nishitani

Man

Noguchi

et al. 2022

Adv Materials Inter

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show abstract

“…The nature of analytical signal coming from them is related to a change in the swelling degree of a sensitive polymer. In the works [17][18][19][20], the authors used polymers functionalized with phenylboronic acid or its derivatives for the determination of glucose in blood, tears and serum [21,22]. Nevertheless, the difficulty of synthesis of such materials and a high cost of precursors limit their application for the analysis of natural samples.…”

Section: Introductionmentioning

confidence: 99%

Determination of reducing carbohydrates in natural honey samples by optical micrometry method

et al. 2022

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The present article deals with the determination of the total amount of glucose and fructose in natural honey samples by the optical micrometry (OM) method. (Poly)vinyl alcohol spherical granules impregnated with a 0.05 mol/l borax solution were chosen as a sensitive element. It was shown that the formation of chelate esters of boron with polymer and carbohydrates is a pH-dependent process, and that the pH range 8.5–10.0 is the most appropriate for quantifying the total amount of reducing carbohydrates because glucose and fructose are undiscriminated. The impregnated polymer is not sensitive to the sucrose presence in the solution due to the absence of cis-diol fragments in it. Subsequently, the OM method was tested in the analysis of natural honey samples. The relative standart deviation in the case of OM method is less than 6%, and the results are similar to those obtained by the iodometric titration method. This makes the OM method suitable for laboratory-scale applications.

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Voltammetric biosensor for coronavirus spike protein using magnetic bead and screen-printed electrode for point-of-care diagnostics

et al. 2022

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Reagentless Impedimetric Sensors Based on Aminophenylboronic Acids

Cited by 7 publications

References 45 publications

Polyaniline‐Based Nanostructure Interface for Signal‐to‐Noise Ratio Enhancement in Potentiometric Enzyme‐Free Biosensors

Polyaniline‐Based Nanostructure Interface for Signal‐to‐Noise Ratio Enhancement in Potentiometric Enzyme‐Free Biosensors

Determination of reducing carbohydrates in natural honey samples by optical micrometry method

Voltammetric biosensor for coronavirus spike protein using magnetic bead and screen-printed electrode for point-of-care diagnostics

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