{"product_id":"cfebspcnte","title":"Screen-Printed Carbon Nanotube Electrodes (CNT-SPEs) as Flexible Electrochemical Biosensors, CFEBSPCNTE","description":"\u003cp\u003eScreen-Printed Carbon Nanotube Electrodes (SPCNTE) incorporate single-walled (SWCNTs) or multi-walled carbon nanotubes (MWCNTs) into thick-film planar strips. By introducing a 3D percolating network of high-aspect-ratio carbon, they address the principal limitation of standard screen-printed carbon electrodes (SPCEs): sluggish electron transfer kinetics caused by insulating polymer binder coverage.\u003c\/p\u003e\n\u003cp\u003eThe Primary Sensor Implementations: (1) \u003cstrong\u003eDehydrogenase-Based Enzymatic Biosensors\u003c\/strong\u003e: Oxidizing enzymatically generated NADH at low voltages (+0.2 V) enables amperometric detection of ethanol (alcohol dehydrogenase), lactate (lactate dehydrogenase), and malate without electrode fouling. (2) \u003cstrong\u003eNeurotransmitter Resolving Platforms\u003c\/strong\u003e: The negative surface charge of carboxylated CNTs separates the overlapping oxidation potentials of Ascorbic Acid (AA), Dopamine (DA), and Uric Acid (UA) into discrete, well-resolved differential pulse voltammetric (DPV) peaks separated by \u0026gt;150 mV}. (3) \u003cstrong\u003eHigh-Capacity Immunosensing Matrices\u003c\/strong\u003e: Acid-treated MWCNTs display dense surface carboxyl groups (-COOH). Standard carbodiimide chemistry (EDC\/NHS) covalently anchors capture antibodies or DNA aptamers with significantly higher surface density than planar graphite. (4) \u003cstrong\u003eTrace Stripping Analysis of Heavy Metals\u003c\/strong\u003e: Combined with bismuth (Bi) or gold (Au) nanoparticles, the 3D CNT scaffold enhances stripping peak resolution and limits of detection for trace Pb^{2+}, Cd^{2+}, and As^{3+}.\u003c\/p\u003e\n\u003ctable border=\"1\" style=\"width: 100.071%; height: 386.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 47.6px;\"\u003e\n\u003ctd style=\"width: 24.8016%; height: 47.6px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 74.9846%; height: 47.6px;\"\u003e\n\u003cul\u003e\n\u003cli\u003eCFEBSPCNTE (C-FEB-SPCNTE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 291.6px;\"\u003e\n\u003ctd style=\"width: 24.8016%; height: 291.6px;\"\u003eCritical Features\u003c\/td\u003e\n\u003ctd style=\"width: 74.9846%; height: 291.6px;\"\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: PET (thickness=0.28 mm)\u003c\/li\u003e\n\u003cli\u003eWorking Electrode (WE): Carbon Nanotubes (Φ 5mm)\u003c\/li\u003e\n\u003cli\u003eCounter Electrode (CE): Carbon Nanotubes\u003c\/li\u003e\n\u003cli\u003eReference Electrode (RE): Ag\/AgCl\u003c\/li\u003e\n\u003cli\u003eElectrical Wire: Ag\u003c\/li\u003e\n\u003cli\u003eDimension Details:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e           \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CFEBSPCNTE_02_100x100.jpg?v=1788675772\" alt=\"\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTesting Performance: In 5 mM K3[Fe(CN)6] + 0.1 M KCl solution, the oxidation and reduction potential gap is only ~240 mV and the total peak current is up to 605 uA in CV testing. Moreover, the CV testing reproducibility is high (different samples) due to uniform morphology of carbon layer, good conductivity, and excellent adsorption ability.  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e           \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CFEBSPCNTE_03_100x100.jpg?v=1788677710\" alt=\"\" style=\"float: none;\"\u003e  \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIn EIS testing, the charge transfer resistance (Rct) is quite low \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e          \u003c\/span\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CFEBSPCNTE_05_100x100.jpg?v=1788678094\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAn adapter is included for operation. \u003c\/li\u003e\n\u003cli\u003eStorage Conditions: RT, avoid light illumination, Al bags sealing, ~50%RH \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 47.6px;\"\u003e\n\u003ctd style=\"width: 24.8016%; height: 47.6px;\"\u003ePackage Grade\u003c\/td\u003e\n\u003ctd style=\"width: 74.9846%; height: 47.6px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e25 pcs\/pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pubs.rsc.org\/ay\/article-abstract\/12\/12\/1547\/632819\/Applications-of-electrochemical-sensors-and\"\u003eH. Beitollahi, et al., Applications of electrochemical sensors and biosensors based on modified screen-printed electrodes: a review, Anal. Methods (2020) 12 (12): 1547–1560.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.mdpi.com\/1424-8220\/16\/10\/1761\"\u003eKeiichiro Yamanaka, et al. Printable Electrochemical Biosensors: A Focus on Screen-Printed Electrodes and Their Application, Analytical and Bioanalytical Chemistry, 2005, 382, 884–886.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"HYKJ","offers":[{"title":"Default Title","offer_id":48291097772262,"sku":"CFEBSPCNTE","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CFEBSPCNTE_main.jpg?v=1788675677","url":"https:\/\/echemsupplies.com\/products\/cfebspcnte","provider":"EChem Supplies","version":"1.0","type":"link"}