Determination of serotonin using gold nanorod-terminated carbonaceous electrode by differential pulse voltammetry

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https://doi.org/10.1007/s11696-023-03016-7
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Keywords

Carbonaceous materials, Coal tar pitch, Differential pulse voltammetry, Gold nanorods, Serotonin

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Determination of serotonin using gold nanorod-terminated carbonaceous electrode by differential pulse voltammetry. / Üstündağ, İlknur; Şahin, Samet.
In: Chemical Papers, Vol. 77, No. 12, 31.12.2023, p. 7447-7455.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{367875c69f364fb0bd13e8ff55b49ae5,

title = "Determination of serotonin using gold nanorod-terminated carbonaceous electrode by differential pulse voltammetry",

abstract = "Waste coal tar pitch is a carcinogenic substance but it can be turned into an environmentally safe and high-value electrode material when it is pyrolyzed at high temperatures. In this study, carbonized coal tar pitch (CTP)-based electrode material was first prepared using an eco-friendly green chemistry approach. Gold nanorods (AuNRds) were then attached to CTP with 4-aminothiophenol junctions by self-assembled monolayers. AuNRds-terminated carbonaceous material was characterized with microscopy and spectroscopy techniques. The nanocomposite material was modified on a glassy carbon electrode by drop coating under an infrared lamp. An analytical method for the determination of 5-HT was developed on the new carbonaceous electrode using differential pulse voltammetry. The prepared sensor exhibited a limit of detection of 0.03 μM (S/N = 3) with a linear range from 0.5 to 10 μM and shows good reproducibility and stability. Finally, real sample tests have been successfully applied to measure 5-HT in human serum to demonstrate the feasibility of the proposed sensing platform.",

keywords = "Carbonaceous materials, Coal tar pitch, Differential pulse voltammetry, Gold nanorods, Serotonin",

author = "İlknur {\"U}st{\"u}ndağ and Samet {\c S}ahin",

year = "2023",

month = dec,

day = "31",

doi = "10.1007/s11696-023-03016-7",

language = "English",

volume = "77",

pages = "7447--7455",

journal = "Chemical Papers",

issn = "0366-6352",

publisher = "Springer International Publishing AG",

number = "12",

}

RIS

TY - JOUR

T1 - Determination of serotonin using gold nanorod-terminated carbonaceous electrode by differential pulse voltammetry

AU - Üstündağ, İlknur

AU - Şahin, Samet

PY - 2023/12/31

Y1 - 2023/12/31

N2 - Waste coal tar pitch is a carcinogenic substance but it can be turned into an environmentally safe and high-value electrode material when it is pyrolyzed at high temperatures. In this study, carbonized coal tar pitch (CTP)-based electrode material was first prepared using an eco-friendly green chemistry approach. Gold nanorods (AuNRds) were then attached to CTP with 4-aminothiophenol junctions by self-assembled monolayers. AuNRds-terminated carbonaceous material was characterized with microscopy and spectroscopy techniques. The nanocomposite material was modified on a glassy carbon electrode by drop coating under an infrared lamp. An analytical method for the determination of 5-HT was developed on the new carbonaceous electrode using differential pulse voltammetry. The prepared sensor exhibited a limit of detection of 0.03 μM (S/N = 3) with a linear range from 0.5 to 10 μM and shows good reproducibility and stability. Finally, real sample tests have been successfully applied to measure 5-HT in human serum to demonstrate the feasibility of the proposed sensing platform.

AB - Waste coal tar pitch is a carcinogenic substance but it can be turned into an environmentally safe and high-value electrode material when it is pyrolyzed at high temperatures. In this study, carbonized coal tar pitch (CTP)-based electrode material was first prepared using an eco-friendly green chemistry approach. Gold nanorods (AuNRds) were then attached to CTP with 4-aminothiophenol junctions by self-assembled monolayers. AuNRds-terminated carbonaceous material was characterized with microscopy and spectroscopy techniques. The nanocomposite material was modified on a glassy carbon electrode by drop coating under an infrared lamp. An analytical method for the determination of 5-HT was developed on the new carbonaceous electrode using differential pulse voltammetry. The prepared sensor exhibited a limit of detection of 0.03 μM (S/N = 3) with a linear range from 0.5 to 10 μM and shows good reproducibility and stability. Finally, real sample tests have been successfully applied to measure 5-HT in human serum to demonstrate the feasibility of the proposed sensing platform.

KW - Carbonaceous materials

KW - Coal tar pitch

KW - Differential pulse voltammetry

KW - Gold nanorods

KW - Serotonin

U2 - 10.1007/s11696-023-03016-7

DO - 10.1007/s11696-023-03016-7

M3 - Journal article

AN - SCOPUS:85168164135

VL - 77

SP - 7447

EP - 7455

JO - Chemical Papers

JF - Chemical Papers

SN - 0366-6352

IS - 12

ER -

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