Journal ArticleDOI
(R)-lipo-diaza-18-crown-6 self-assembled monolayer as a selective serotonin receptor.
Jinyoung Park,Yoon Suk Lee,Byoung-Yong Chang,S. Karthikeyan,Kwang S. Kim,Byeang Hyean Kim,Su-Moon Park +6 more
TLDR
A highly selective receptor for serotonin was designed using cages formed by the (R)-lipo-diaza-18-crown-6 self-assembled monolayer on gold and experimentally verified by a variety of electrochemical experiments in solutions containing large amounts of dopamine and ascorbic acid.Abstract:
A highly selective receptor for serotonin was designed using cages formed by the (R)-lipo-diaza-18-crown-6 self-assembled monolayer (SAM) on gold and experimentally verified by a variety of electrochemical experiments in solutions containing large amounts of dopamine and ascorbic acid, as well as other interferents. The molecular modeling study showed that parameters such as the H-pi interaction provided important driving forces for the cage to form a strong inclusion complex with serotonin. The charge-transfer resistance (R(CT)'s) to/from redox probe ions, Fe(CN)(6)(3-/4-), was greatly enhanced because of their electrostatic attractions to ammonium ions of serotonin molecules captured by cages. The changes in R(CT)-values were shown to be remarkably selective for serotonin in the presence of many interferents.read more
Citations
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Electrochemical Impedance Spectroscopy
Byoung-Yong Chang,Su-Moon Park +1 more
TL;DR: This review describes recent advances in electrochemical impedance spectroscopy with an emphasis on its novel applications to various electrochemistry-related problems, specifically traditional measurements in various fields with a special emphasis on biosensor detections.
Journal ArticleDOI
DNA hybridization sensors based on electrochemical impedance spectroscopy as a detection tool
Jinyoung Park,Su-Moon Park +1 more
TL;DR: Efforts made to enhance the selectivity as well as the sensitivity of DNA sensors and to reduce the EIS measurement time are briefly described along with brief future perspectives in developing DNA sensors.
Journal ArticleDOI
A cyclodextrin host-guest recognition approach to an electrochemical sensor for simultaneous quantification of serotonin and dopamine.
TL;DR: An electrochemical sensor for simultaneous quantification of serotonin (5-hydroxytryptamine, 5-HT) and dopamine (DA) using a β-cyclodextrin/poly(N-acetylaniline)/carbon nanotube composite modified carbon paste electrode has been developed and was shown to be remarkably selective for 5- HT and DA in matrices containing different species.
Journal ArticleDOI
A 3D graphene-based biosensor as an early microcystin-LR screening tool in sources of drinking water supply
Wei Zhang,Wei Zhang,Changseok Han,Baoping Jia,Christopher P. Saint,Mallikarjuna N. Nadagouda,Polycarpos Falaras,Labrini Sygellou,Vasileia Vogiazi,Dionysios D. Dionysiou +9 more
TL;DR: In this article, a 3D graphene-based biosensor for microcystin-LR (MC-LR) detection and quantification has been presented, which can detect MC-LR with remarkable sensitivity due to its macro-porous structure and large surface area, and high conductivity.
Journal ArticleDOI
Pesticide Macroscopic Recognition by a Naphthol-Appended Calix[4]arene.
TL;DR: The proposed wettability sensing device displays remarkable specificity and is fast and easy to use, which should be suitable for the rapid detection of MC in environmental monitoring.
References
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Marcus Elstner,Marcus Elstner,D. Porezag,G. Jungnickel,J. Elsner,M. Haugk,Th. Frauenheim,Sándor Suhai,Gotthard Seifert +8 more
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Interactions with Aromatic Rings in Chemical and Biological Recognition
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Electrochemical DNA sensors
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Nafion-coated electrodes with high selectivity for CNS electrochemistry.
TL;DR: A major improvement in the selectivity of small graphite electrodes used for in vivo electrochemistry is described, which becomes selective for the cationic primary neurotransmitters, dopamine, norepinephrine and 5-hydroxytryptamine.