Figure 4 | Scientific Reports

Figure 4

From: High-Performance Conducting Polymer Nanotube-based Liquid-Ion Gated Field-Effect Transistor Aptasensor for Dopamine Exocytosis

Figure 4

SEM images of CPNTs on IME arrays: (a) CPNT1 (ca. 200 nm in diameter) and (b) CPNT2 (ca. 120 nm in diameter). The insets show transmission electron microscopy (TEM) images of CPNT1 and CPNT2. (c) FT-IR spectroscopy of CPNTs and aptamer-CPNTs. (d) XPS analysis of P2p (ca.133 eV) of the aptamer-conjugated CPNT1 and CPNT2. (e) Fluorescent images of aptamer-CPNTs (right) and FITC-aptamer-CPNTs (left). The image of FITC was observed along the IME arrays.

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