Abstract
In this work single walled carbon nanotube (SWNT)-peptide nucleic acid (PNA) conjugates are synthesized and their electrical properties are characterized. Metal contacts to SWNT-PNA-SWNT conjugates, used for current–voltage (I–V ) measurements, are fabricated by two different methods: direct placement on pre-patterned gold electrodes and metal deposition using focused ion beam (FIB). Back-gated I–V measurements are used to determine the electronic properties of these conjugates. Additionally, conductive atomic force microscopy (C-AFM) is used to characterize the intrinsic charge transport characteristics of individual PNA clusters.
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