Analysis of Charge Versus the Surface Fermi Level Position at Silicon Surface

Structural insights into the effects of charge-reversal substitutions at the surface of horseradish peroxidase

Horseradish peroxidase (HRP), has gained significant interests in biotechnology, especially in biosensor field and diagnostic test kits. Hence, its solvent-exposed lysine residues 174, 232, and 241 have been frequently modified with the aim of improving its stability and catalytic efficiency. In this computational study, we investigated the effects of Lys-to-Glu substitutions on HRP structure t...

Surface recombination, surface states and Fermi level pinning

2014 Surface and interface recombination processes, which are becoming more and more important with the appearance of small-size optoelectronic devices, are still not well understood because reliable data are very scarce. We report here the first simultaneous in situ measurements of the density and position of surface states, of the position of the Fermi level at the surface, and of the surface...

The Effect of Bubble Surface Charge on Phonophoresis

It is over several decades that ultrasound is used to enhance the transdermal drug delivery (phonphoresis). The mechanism of the enhancement is not fully understood and the ability of ultrasound on the enhancement for some drugs is unclear. The effect of continuous wave 870 KHz ultrasound at intensity of 1 W/cm 2 for 15 minutes on transdermal absorption of piroxicam from solution and gel formu...

Surface Fermi-level position and gap state distribution of InGaP surface grown by metalorganic vapor-phase epitaxy

Observation of surface charge screening and Fermi level pinning on a synthetic, boron-doped diamond

Spectroscopic current-voltage (1-v) curves taken with a scanning tunneling microscope on a synthetic, boron-doped diamond single crystal indicate that the diamond, boiled in acid and baked to 500 “C in vacuum, does not exhibit ideal Schottky characteristics. These 1-V curves taken in ultrahigh vacuum do not fit the traditional theory of thermionic emission; however, the deviation from ideal can...