Figure 16.7 — Microassembly of reconfigurable microenvironments Figure 16.7 — Microassembly of reconfigurable microenvironments. Optical assembly of two-photon polymerised microblock components that can be used as reconfigurable microenvironments. (a) A cluster of four traps is selected to rotate a microblock in two dimensions. (b) Three-dimensional optical manipulation of dumb-bell microstructures with a pair of traps fitting a spherical lobe of a dumb-bell to a hole of a complementary microblock. (c) Successful assembly of all the microcomponents. (d) Grouping of all traps to collectively manipulate the entire assembly.Reprinted from Rodrigo et al., Opt. Express 17, 6578–83. Copyright (2009) The Optical Society.