====== Ivan Kamenkov ====== contest participant at the 7th week of 2012 {{::tioxidebig.jpeg?200|}} {{::tioxidesmall.jpeg?200|}} **Tinanium oxide particles** //The images have been recorded by means of SPM FemtoScan FSM0307, working in contact mode. The cantilever is FPC01.// 16.02.2012. Scan sizes are 2*2 μm2 и 0.5*0.5 μm2.