Recherche

Afficher tous les résultats pour

Accueil

Personne

Giovanni Dietler

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (156)

Temperature-Controlled Assembly of High Ordered/Disordered Dodecylamine Layers on HOPG: Consequences for DNA Patterning

Giovanni Dietler, Susana del Carmen Tobenas Borron, Dmitry Klinov

It is shown that temperature-control led ordered layers of dodecylamine,self-assembled on highly oriented pyrolytic graphite (HOPG), are an appropriate substrate for aligning individual DNA molecules. High resolution atomic force microscopy (AFM) permits v ...

2009

Complex studies of interactions between flaviviruses and laminin binding protein

Giovanni Dietler, Mélanie Favre, Serguei Sekatski

2009

Registration of long-range surface plasmon resonance by angle-scanning feedback and its implementation for optical hydrogen sensing

Giovanni Dietler, Serguei Sekatski

An optical technique devised for the detection of the ultrasharp angular resonance of long-range surface plasmons (LRSPs) is described. The LRSPs propagate along an 8 nm-thick palladium (Pd) film deposited on a one- dimensional photonic crystal structure a ...

Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft2009

Persistence length and scaling properties of single-stranded DNA adsorbed on modiﬁed graphite

Giovanni Dietler, Guillaume Witz, Kristian Rechendorff

We have characterized the polymer physics of single-stranded DNA (ssDNA) using atomic force microscopy. The persistence length l(p) of circular ssDNA adsorbed on a modified graphite surface was determined independently of secondary structure. At a very low ...

2009

The promotion of secondary structures in single-stranded DNA by drugs that bind to duplex DNA: an atomic force microscopy study

Giovanni Dietler, Guillaume Witz, Kristian Rechendorff

We study the behavior of single-stranded DNA (ssDNA) in the presence of well-known drugs with either an intercalating binding mode, such as daunorubicin, actinomycin D, and chloroquine, or a minor groove binding mode, such as netropsin and berenil, by atom ...

2008

Immunochernical and single molecule force spectroscopy studies of specific interaction between the laminin binding protein and the West Nile virus surface glycoprotein E domain II

Giovanni Dietler, Mélanie Favre, Serguei Sekatski

ELISA and Western blot immunochemical data attest an effective and highly specific interaction of the surface glycoprotein E domain II (DII) of the tick born encephalitis and Dengue viruses with the laminin binding protein (LBP). Based on a highly conserva ...

2008

Elastic membrane heterogeneity of living cells revealed by stiff nanoscale membrane domains

Charles Roduit, Giovanni Dietler, Paolo De Los Rios, Sandor Kasas, Pascal Steiner, Alexandre Yersin, Françoise Gisou van der Goot Grunberg

Many approaches have been developed to characterize the heterogeneity of membranes in living cells. In this study, the elastic properties of specific membrane domains in living cells are characterized by atomic force microscopy. Our data reveal the existen ...

Elsevier2008

Single molecule fluorescence resonance energy transfer scanning near-field optical microscopy

Giovanni Dietler, Serguei Sekatski

The first single molecule fluorescence resonant energy transfer scanning near-field optical microscope (FRET SNOM) images of CdSe nanocrystal (donor) deposited onto the glass slide surface are presented. Images were obtained using the earlier proposed FRET ...

Elsevier2008

Single-molecule avidin-biotin association reaction studied by force-clamp spectroscopy

Giovanni Dietler, Mélanie Favre, Serguei Sekatski

Using single-molecule force-clamp spectroscopy, where the distance between the AFM tip and the sample surface is fixed and a few parallel avidin-biotin complexes are kept stretched by a certain force, we were able to observe the formation of single avidin- ...

2008

Probing nanomechanical properties from biomolecules to living cells

Giovanni Dietler, Sandor Kasas

Atomic force microscopy is being increasingly used to explore the physical properties of biological structures. This technique involves the application of a force to the sample and a monitoring of the ensuing deformation process. The available experimental ...

Springer-Verlag2008

Conformation of Circular DNA in Two Dimensions

Giovanni Dietler, Guillaume Witz, Kristian Rechendorff

The conformation of circular DNA molecules of various lengths adsorbed in a 2D conformation on a mica surface is studied. The results confirm the conjecture that the critical exponent ν is topologically invariant and equal to the self-avoiding walk value ( ...

American Physical Society2008

Scanning near-field optical microscope based on a double resonant fibre probe montage and equipped with time-gated photon detection

Giovanni Dietler, Serguei Sekatski, Kanat Dukenbayev

We discuss scanning near-field optical microscope based on original double resonant montage of a fibre probe onto the tuning fork and proprietary electronics capable of fast and precise measurements of the resonant frequency and the quality factor of senso ...

2008

Single-molecule force spectroscopy of a protein globule covalently bound to a calcite surface

Giovanni Dietler, Serguei Sekatski

Two methods of covalent grafting of a protein onto a calcite surface were developed. Single-molecule force spectroscopy was used to examine the characteristics of individual albumin-albumin polyclonal body complexes. The practical applicability of the prop ...

2008

Force spectroscopy of the fibrin(ogen) - Fibrinogen interaction

Giovanni Dietler

Fibrin aggregation is of vital importance in many physiological and pathological processes, such as blood coagulation, wound healing, and thrombosis. In the present study, we investigated the forces involved in the initial steps of the fibrinogen fibrin ag ...

2008

Fractal dimension and localization of DNA knots

Giovanni Dietler, Paolo De Los Rios, Guillaume Witz, Erika Ercolini

The scaling properties of DNA knots of different complexities were studied by atomic force microscope. Following two different protocols DNA knots are adsorbed onto a mica surface in regimes of (i) strong binding, that induces a kinetic trapping of the thr ...

American Physical Society2007

Characterization of MAP1B heavy chain interaction with actin

Giovanni Dietler, Sandor Kasas

2007

Subwavelength-size local fluorescent sources based on color centers in LiF for scanning near-field optical microscopy

Giovanni Dietler, Serguei Sekatski

2007

Techniques for measuring microtubule stiffness

Giovanni Dietler, Sandor Kasas

2007

Scanning near-field optical microscope based on double-resonant fiber probe montage and its operation in liquids - art. no. 67282D

Giovanni Dietler, Serguei Sekatski, Kanat Dukenbayev

The operation of the scanning near-field optical microscope based on the double-resonant montage of a fiber probe onto the tuning fork (working frequency of the latter, that is 32 kHz, coincides with the second resonance frequency of the bending oscillatio ...

SPIE2007

Study of DNA in "glasslike state" by atomic force microscopy: Importance of substrates

Giovanni Dietler, Aleksandra Radenovic, Susana del Carmen Tobenas Borron

2006

Page 7 sur 8