Platinum nanoparticles (PtNPs) on multi-wall carbon nanotubes (MWCNT) were functionalized with 4-mercaptophenylboronic acid (4MPB) for electrochemical detection of fructose. The composite nanomaterial was characterized by physicochemical techniques such as TGA and TEM, and electrochemically using the [Fe(CN)(6)](3-/4-) as channel ion. Experimental values indicate that this sensor presents high sensitivity and selectivity for electrochemical detection of fructose with the sensitivity of 2.794 x 10(-5) A mM(-1) in a range of 2.5 to 10 mM using cyclic voltammetry and sensitivity 8.65 Omega mM(-1) in range of 0.5 to 10 mM using electrochemical impedance spectroscopy. (C) 2017 The Electrochemical Society. All rights reserved.