Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource An electrochemical sensor for nanomolar detection of caffeine based on nicotinic acid hydrazide anchored on graphene oxide (NAHGO) Description An account of the resource A simple modified sensor was developed with nicotinic acid hydrazide anchored on graphene oxide (NAHGO), by ultrasonic-assisted chemical route, using hydroxy benzotriazole as a mediator. Structural and morphologies of NAHGO samples were investigated in detail by Fourier-Transform Infrared spectroscopy (FT-IR), Powder X-ray diffraction (P-XRD), Raman spectroscopy, Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Thermogravimetric analysis (TGA). The detailed morphological examination and electrochemical studies revealed the delaminated sheet with the tube-like structure of NAHGO provided the route for more electroactive surface which influenced the electrooxidation of caffeine with increased current. The electrochemical behaviour of NAHGO on a glassy carbon electrode (GCE) for caffeine detection was demonstrated by employing voltammetric techniques. The influence of scan rate, pH, and concentration on caffeine's peak current was also studied. The NAHGO sensor was employed for the determination of caffeine in imol plus and energy drinks. The detection limit determined was 8.7 109M, and the best value was reported so far. The results show that NAHGO modified electrodes are one of the best preferences to establish new, efficient, and reliable analytical tools for the detection of caffeine. 2021, The Author(s). Creator An entity primarily responsible for making the resource Jose J.; Subramanian V.; Shaji S.; Sreeja P.B. Source A related resource from which the described resource is derived Scientific Reports, Vol-11, No. 1 Publisher An entity responsible for making the resource available Nature Research Date A point or period of time associated with an event in the lifecycle of the resource 2021-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1038/s41598-021-89427-6" target="_blank" rel="noreferrer noopener">https://doi.org/10.1038/s41598-021-89427-6</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107161210&amp;doi=10.1038%2Fs41598-021-89427-6&amp;partnerID=40&amp;md5=480549b853a30ee1eaf603897c4afc13" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107161210&amp;doi=10.1038%2fs41598-021-89427-6&amp;partnerID=40&amp;md5=480549b853a30ee1eaf603897c4afc13</a> Rights Information about rights held in and over the resource All Open Access; Gold Open Access; Green Open Access Relation A related resource ISSN: 20452322; PubMed ID: 34083560 Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Jose J., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India; Subramanian V., Department of Industrial Chemistry, Alagappa University, Karaikudi, 630003, Tamil Nadu, India; Shaji S., Facultad de Ingenier Mecica y Eltrica, Universidad Automa de Nuevo Le, San Nicol de los Garza, 66455, Nuevo Le, Mexico; Sreeja P.B., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, Karnataka, India