Publications de Dimitrios Stamou

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Regioselectivity addressable functionalised templates (RAFT) represent topological cyclic peptides containing orthogonally protected attachment sites pointing to opposite faces of the template backbone. Functionalisation of the template with coordinating groups and alkane chains result in metal-binding and self-association properties CI solution without major disruption of the preferred template conformation as inferred by NMR, CD and surface plasmon resonance, (SPR) spectroscopy studies. This suggested tha

High-aspect-ratio, monocryst. Cd chloride nanowires doped with fluorescent CdS nanoparticles were synthesized using planar lipid membranes as templates. Cd2+ ions bound to the lipid bilayers (a) are released at low pH to the nanometer-sized, interlamellar ...

A simple method has been developed for the prodn. of Au surfaces which are uniformly flat over large areas. Si wafers serve as substrates for the evapn. of thin Au layers. A glass slide glued onto the Au film allows successful sepn. of the Au layer from the Si oxide surface. The process leaves a flat Au surface suitable for chem. modification. The surfaces were characterized using scanning force microscopy. An av. roughness of 2.5 .ANG. over areas up to 1000 mm2 was found. Scanning force microscopy images o

We performed lateral force microscopy on thiolipid Langmuir-Blodgett (LB) films physisorbed on mica substrates with a silicon tip of an at. force microscope. The structure of condensed domains, reflecting their sym. morphol., was obsd. The lateral (friction) forces were measured as a function of (normal) applied load, of sliding velocity and of the mol. orientation of these films. At a fixed velocity, lateral force increases with applied load in a linear fashion. Within the velocity range 0.01 to .apprx. 50

We present a method that allows the on-demand release and mixing of zepto- to femtoliter vols. of solns. in the interior of vesicular nanoreactors. The reactors comprise a nested system of lipid vesicles, part of which release their cargo in the interior of the others during a thermotropic phase transition. The performance of individual reactors immobilized on glass is characterized using confocal microscopy and a fluorescent dye that reports diln. during the release. The results confirm the predicted temp.

CdSe quantum dots (QDs) with a high fluorescence quantum yield of 25% and a narrow size distribution were synthesized in a single step in H2O using glutathione as a stabilizing mol. The exceptional optical properties enabled for the 1st time the detection of in-H2O-prepd. single quantum dots at room temp. For application as fluorescent bioanal. probes, the QDs were coated with streptavidin. These QDs self-assemble with high contrast on micropatterned biotin while preserving their optical properties and thei

High-d. microarrays of attoliter vol. elements can be created within minutes in a parallel and effortless manner by using self-assembly of nanometer-size components based on biol. recognition. These ultrasmall vols. allow localization of single mols., screening for (bio)chem. properties, and assessing the performance of confined chem. reactions. [on SciFinder (R)]

Dimitrios Stamou

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Functionalisation of gold surfaces via topological templates

Synthesis of nanoscopic optical fibers using lipid membranes as templates

Uniformly Flat Gold Surfaces: Imaging the Domain Structure of Organic Monolayers Using Scanning Force Microscopy

The dependence of friction anisotropies on the molecular organization of LB films as observed by at. force microscopy

Integrated Nanoreactor Systems: Triggering the Release and Mixing of Compounds Inside Single Vesicles

Highly Fluorescent Streptavidin-Coated CdSe Nanoparticles: Preparation in Water, Characterization, and Micropatterning

Self-assembled microarrays of attoliter molecular vessels

Organic monolayers : characterization by AFM and their use for the patterned immobilization of vesicles

An Integrated Self‐Assembled Nanofluidic System for Controlled Biological Chemistries