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 Electrochemical sensing of vitamin B12 deficiency marker methylmalonic acid using PdAu-PPy tailored carbon fiber paper electrode Subject The topic of the resource Electrochemical; Human blood serum; Methylmalonic acid (MMA); PdAu nanoparticles; Polypyrrole Description An account of the resource Vitamin B12 is very important for human metabolism and its deficiency can cause anemia and the production of large red blood cells. An increased concentration of methylmalonic acid (MMA) is detected much before the transformation of blood cells, which thereby is an early indicator for mild or serious Vitamin B12 deficiency. A simple electrochemical sensor based on PalladiumGold (PdAu) was developed by electrodeposition of PdAu nanoparticles on Polypyrrole (PPy) modified carbon fiber paper (CFP) electrode. The modified electrodes were characterized by High resolution transmission electron microscopy (HRTEM), Field emission scanning electron microscopy (FESEM) with energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and electroanalytical techniques. Differential Pulse Voltammetric (DPV) studies have established that under optimum conditions, the developed sensor exhibits a broad linear dynamic range (4.01 pM - 52.5 nM) with a very low detection limit (1.32 pM). The proposed method was effectively applied in the non-enzymatic determination of MMA at an ultralow level in human blood serum and urine samples. The method displayed high selectivity toward MMA in the presence of other interfering substances. 2020 Elsevier B.V. Creator An entity primarily responsible for making the resource Akshaya K.B.; Anitha V.; Nidhin M.; Sudhakar Y.N.; Louis G. Source A related resource from which the described resource is derived Talanta, Vol-217 Publisher An entity responsible for making the resource available Elsevier B.V. Date A point or period of time associated with an event in the lifecycle of the resource 2020-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1016/j.talanta.2020.121028" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.talanta.2020.121028</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083165140&amp;doi=10.1016%2Fj.talanta.2020.121028&amp;partnerID=40&amp;md5=9b994b6a37fc634a3b4ba2a66a5f7280" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083165140&amp;doi=10.1016%2fj.talanta.2020.121028&amp;partnerID=40&amp;md5=9b994b6a37fc634a3b4ba2a66a5f7280</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 399140; PubMed ID: 32498897; CODEN: TLNTA 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 Akshaya K.B., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India; Anitha V., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India; Nidhin M., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India; Sudhakar Y.N., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India; Louis G., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India