Electrochemical, AFM and QCM studies on ferritin immobilized onto a self-assembled monolayer-modified gold electrode

Electrochemically controlled reconstitution of immobilized ferritins for bioelectronic applications

“…with the CV results (see Fig. 3b) showing reduced cathodic current density depending on cycles, indicating that the reduced Fe(II) is released into the solution as had been reported previously [29]. During the forward scan, the slight decrease of frequency is due to proton insertion and precipitation of FePO 4 made by combining reduced Fe(II) and phosphate ions on the electrode surface.…”

“…These methods include physical adsorption [23], Langmuir-Blodgett deposition [24][25][26], mechanical scratching [27], protein crystallization [28], and electrostatic interaction between ferritin and the terminal functional groups of the self assembled monolayers [29].…”

Gravimetric Viral Diagnostics: QCM Based Biosensors for Early Detection of Viruses

“…This requires the modification of Au-electrodes by functional thiols which can bind to the electrode surface forming a self-assembled monolayer at thiol-end [101,102], while the next-end functionality, e.g., a carboxylic acid, can bind to the receptor DNA and aptamers.…”

Magnetic Langmuir–Blodgett films of ferritin with different iron loadings

“…Monolayers of ferritin have been organized at the air-water interface by adsorption onto Langmuir films of amphiphilic molecules and then transferred onto solid substrates by using the horizontal touching method [6][7][8]. Self-assembled monolayer (SAM)-modified gold electrodes showing an electrochemically regulated uptake and release of Fe atoms have been prepared [9]. Here we show that multilayered thin films of ferritin can be built by using the Langmuir-Blodgett (LB) technique.…”