Characterization of metal decorated protein templates by scanning electron/scanning force microscopy and microanalysis

2004 ◽  
Vol 36 (8) ◽  
pp. 720-723 ◽  
Author(s):  
Wilhelm Habicht ◽  
Silke Behrens ◽  
Jin Wu ◽  
Eberhard Unger ◽  
Eckhard Dinjus
Keyword(s):  
Scanning Force Microscopy ◽  
Force Microscopy ◽  
Scanning Force ◽  
Scanning Electron

Photoelectric Response of Self Assembled Films of Bacterio-Rhodopsin Purple Membrane Integrated on Silicon

2003 ◽  
Vol 774 ◽  
Author(s):  
D. Ricceri ◽  
G. Scicolone ◽  
O. Di Marco ◽  
S. Conoci ◽  
B. Pignataro ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Light Exposure ◽  
Scanning Force Microscopy ◽  
Purple Membrane ◽  
Morphological Properties ◽  
Force Microscopy ◽  
Scanning Force ◽  
Scanning Electron ◽  
Tungsten Lamp

AbstractBacterio-rhodopsin purple membrane (PM) thin films have been prepared by selfassembling (SA) technique. Morphological properties of the layers were inspected by Scanning Electron Microscopy (SEM) and Scanning Force Microscopy (SFM) highlighting the presence of densely packed PM films. Reflectance Uv-vis spectra on these films revealed the typical bR absorption at 570 nm. By using a tungsten lamp illuminations (250-350 mW) chopped at 0.5Hz, photoelectric responses were detected. Differential (light-on and light-off) photocurrent signals of up to 1 μA/cm2 were obtained upon light exposure.

scholarly journals The memory effect of nanoscale memristors investigated by conducting scanning probe microscopy methods

2012 ◽  
Vol 3 ◽  
pp. 722-730 ◽  
Author(s):  
César Moreno ◽  
Carmen Munuera ◽  
Xavier Obradors ◽  
Carmen Ocal
Keyword(s):  
Memory Effect ◽  
Scanning Probe Microscopy ◽  
Electrical Characterization ◽  
Scanning Force Microscopy ◽  
Scanning Probe ◽  
Force Microscopy ◽  
Versatile Tool ◽  
Scanning Force ◽  
Memristor Device

We report on the use of scanning force microscopy as a versatile tool for the electrical characterization of nanoscale memristors fabricated on ultrathin La0.7Sr0.3MnO3 (LSMO) films. Combining conventional conductive imaging and nanoscale lithography, reversible switching between low-resistive (ON) and high-resistive (OFF) states was locally achieved by applying voltages within the range of a few volts. Retention times of several months were tested for both ON and OFF states. Spectroscopy modes were used to investigate the I–V characteristics of the different resistive states. This permitted the correlation of device rectification (reset) with the voltage employed to induce each particular state. Analytical simulations by using a nonlinear dopant drift within a memristor device explain the experimental I–V bipolar cycles.

Scanning Force Microscopy Characterization of Langmuir-Blodgett Films of Sulfur-Bearing Lipids on Mica and Gold

1995 ◽  
Vol 99 (3) ◽  
pp. 1038-1045 ◽  
Author(s):  
Lars Santesson ◽  
Tim M. H. Wong ◽  
Mauro Taborelli ◽  
Pierre Descouts ◽  
Martha Liley ◽  
...  
Keyword(s):  
Scanning Force Microscopy ◽  
Force Microscopy ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Scanning Force ◽  
Microscopy Characterization

Unconventional nanotubes self-assembled in alumina channels: morphology and surface potential of isolated nanostructures at surfaces

2007 ◽  
Vol 365 (1855) ◽  
pp. 1577-1588 ◽  
Author(s):  
Vincenzo Palermo ◽  
Andrea Liscio ◽  
Anna Maria Talarico ◽  
Linjie Zhi ◽  
Klaus Müllen ◽  
...  
Keyword(s):  
Surface Potential ◽  
Scanning Force Microscopy ◽  
Kelvin Probe ◽  
Alumina Membrane ◽  
Flat Surfaces ◽  
Force Microscopy ◽  
Scanning Force ◽  
Self Assembled ◽  
Microscopy Characterization

Synthetic nanographenes have been self-assembled from solution on the surface of nanometric channels of an alumina membrane template. By controlling the interplay between intermolecular and interfacial interactions, the molecules have been adsorbed either ‘face-on’ or ‘edge-on’ on the pore's surfaces, leading to the formation of columnar stacks in the latter case. Upon thermal treatment at high temperature, the molecular cross-linking of the columns has been triggered, transforming the delicate supramolecular arrangement into robust carbon nanotubes, with the graphitic planes at predetermined orientations with respect to the tube axis. Scanning force microscopy characterization of single nanotubes deposited from suspensions on mica showed that the nanotubes can self-assemble on flat surfaces adopting preferential alignments which reflect the threefold symmetry of the mica substrate. Kelvin probe force microscopy studies revealed that the nanotubes possess a surface potential much smaller than the work function of both graphite and conventional vacuum-processed nanotubes, providing evidence for their more confined electronic structure.

Scanning force microscopy characterization of thin lipid films on a substrate

1996 ◽  
Vol 273 (1-2) ◽  
pp. 289-296 ◽  
Author(s):  
J. Masai ◽  
T. Shibata-Seki ◽  
K. Sasaki ◽  
H. Murayama ◽  
K. Sano
Keyword(s):  
Scanning Force Microscopy ◽  
Force Microscopy ◽  
Lipid Films ◽  
Scanning Force ◽  
Microscopy Characterization

Characterization of self-assembling isolated ferroelectric domains by scanning force microscopy

2004 ◽  
Vol 100 (3-4) ◽  
pp. 339-346 ◽  
Author(s):  
Bongki Lee ◽  
Changdeuck Bae ◽  
Seung-Hyun Kim ◽  
Hyunjung Shin
Keyword(s):  
Scanning Force Microscopy ◽  
Force Microscopy ◽  
Self Assembling ◽  
Ferroelectric Domains ◽  
Scanning Force
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