It is the ultimate goal to accurately place molecules and spaces while building electronic devices using individual molecules. In this paper, we attempt to form a metal-insulator-metal (MIM) junction on micrometer-sized plastic beads that can be placed where desired. Electron tunneling in an MIM junction formed from a two-dimensional network consisting of repeated gold nanoparticle (AuNP)-alkyl chain-AuNP sequences is evaluated by directly measuring the electrical resistivity of the microbead. A plot of the logarithm of the resistivity versus the number of carbon atoms in the alkyl chain (n(c) = 3-8) in each junction yields identical tunneling coefficients, beta, of 8.59 +/- 0.09 nm(-1). The MIM junction on a microbead can be moved and arranged in any location, which enables the rapid development of miniaturized compact electronic devices. (C) 2013 The Electrochemical Society. All rights reserved.