Functionalized multiwall carbon nanotube-molybdenum disulphide nanocomposite based electrochemical ultrasensitive detection of neurotransmitter epinephrine

Kumar, Sachin; Awasthi, Abhishek Kumar; Sharma, Manish Dev; Singh, Kulvinder; Singh, Dalwinder

doi:10.1016/j.matchemphys.2022.126656

Cited by 17 publications

(2 citation statements)

References 86 publications

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“…The as-obtained slope value (0.56) from the above regression equations unveiled the diffusion-controlled behavior behind the process. 60,61…”

Section: Resultsmentioning

confidence: 99%

“…The as-obtained slope value (0.56) from the above regression equations unveiled the diffusion-controlled behavior behind the process. 60,61 The Nicholson and Shain equation (eqn (6)) were used to calculate the number of electrons accountable for the irreversible oxidation process from the I pa versus v 1/2 plot, 62,63 where I pa = peak current value (mA), C = concentration of analyte (mol cm 3 ), n = the number of electrons, A = surface area of fabricated electrode (cm 2 ), D = diffusion coefficient, n a = contributing number of electrons during charge transfer, and a = the coefficient of electron transfer. The value of a was determined for the oxidation process of HS À at DDA@HfO 2 /Au nanosystem using eqn (7).…”

Section: Electrochemical Sensing Of Hs à Through the Fabricated Dda@h...mentioning

confidence: 99%

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Green dodecylamine-capped hafnium oxide nanosystem: evaluating the toxicity profile and electrochemical hydrogen sulfide sensing efficiency

et al. 2023

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“…The as-obtained slope value (0.56) from the above regression equations unveiled the diffusion-controlled behavior behind the process. 60,61…”

Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Sensing Of Hs à Through the Fabricated Dda@h...mentioning

confidence: 99%

Green dodecylamine-capped hafnium oxide nanosystem: evaluating the toxicity profile and electrochemical hydrogen sulfide sensing efficiency

et al. 2023

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A novel Au nanoparticles/ionic liquids/N‐ and P‐co‐doped carbon nanotubes‐modified carbon cloth sensor for the sensitive detection of adrenaline

Cui,

Liu,

Meng

et al. 2024

Asia-Pacific J Chem Eng

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Adrenaline (AD) is important in information transmission through the human central nervous system. Considering the significant biochemical functions of AD, the development of electrochemical sensors capable of detecting AD levels in living organisms has attracted considerable interest. In this study, AD was detected using electrochemical sensors developed based on Au nanoparticles/ionic liquids/N‐ and P‐co‐doped carbon nanotubes‐modified carbon cloth (AuNPs/ILs/N,P‐MWCNTs/CC) electrodes. AuNPs/ILs/N,P‐MWCNTs/CC composites were prepared on carbon cloth (CC) substrates using ionic liquids (ILs), N‐ and P‐co‐doped multi‐walled carbon nanotubes (N,P‐MWCNTs), and Au nanoparticles (AuNPs) as modified materials. The effects of pH and scanning speed were optimized and tested on the prepared composites. The results of cyclic voltammetry (CV) and differential pulse voltammetry (DPV) experiments showed that the modified ILs, N,P‐MWCNTs, and AuNPs effectively improved the oxidation performance of AD. In addition, the linear range obtained from the DPV scans of the AuNPs/ILs/N,P‐MWCNTs/CC composite material was 30–505 μmol/L, with a detection limit of 0.31 μmol/L. The fabricated sensors have good sensitivity (6.9 μA·mM−1·cm−2) for AD of 30–505 μM. Therefore, the electrochemical sensing method based on the AuNPs/ILs/N,P‐MWCNTs/CC composite material is a promising and reliable AD detection technology that also exhibits good selectivity in the presence of interfering substances such as folic acid and ibuprofen. In practical applications, this material can help realize real‐time AD detection to determine whether athletes use doping and other illegal drugs before competitions and to perform synchronous detection.

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A nanoplatform-based aptasensor to electrochemically detect epinephrine produced by living cells

2023

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Functionalized multiwall carbon nanotube-molybdenum disulphide nanocomposite based electrochemical ultrasensitive detection of neurotransmitter epinephrine

Cited by 17 publications

References 86 publications

Green dodecylamine-capped hafnium oxide nanosystem: evaluating the toxicity profile and electrochemical hydrogen sulfide sensing efficiency

Green dodecylamine-capped hafnium oxide nanosystem: evaluating the toxicity profile and electrochemical hydrogen sulfide sensing efficiency

A novel Au nanoparticles/ionic liquids/N‐ and P‐co‐doped carbon nanotubes‐modified carbon cloth sensor for the sensitive detection of adrenaline

A nanoplatform-based aptasensor to electrochemically detect epinephrine produced by living cells

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