Jan. 23, 2012

Principal Component Analysis in Dynamic Force Spectroscopy

A simple method to direct identify nanometer sized textures in composite materials by means of AFM Spectroscopy, aiming at recognizing nanometer structures embedded in a sample. It consists in acquiring a set of dynamic data organized in spectroscopy maps and subsequently extracting most valuable information by means of the Principal Component Analysis (PCA) method [1]. In this work we explain the main features of the method and show its application on a nanocomposite sample.
Force Spectroscopy by AFM moreJan. 11, 2012

Park Systems NX10: Research-Grade True Non-Contact Atomic Force Microscope

Schaefer Technology has introduced the Park Systems NX10, a very accurate Atomic Force Microscope (AFM) which brings high imaging accuracy, scan speeds, and tip life to the next generation of researchers, all at an affordable price. moreDec. 13, 2011

Transient Absorption: Label-free Imaging of Nanotubes in Cells

Researchers have demonstrated a new imaging tool for tracking structures called carbon nanotubes in living cells and the bloodstream, which could aid efforts to perfect their use in biomedical research and clinical medicine.
moreNov. 14, 2011

Ni-Nanostructures Within Porous Silicon

A semiconducting/ferromagnetic nanocomposite, consisting of a porosified silicon wafer and deposited Ni-nanostructures, is presented. Porous silicon matrices achieved by anodization of a highly n doped wafer offer oriented pores with an average pore-diameter of 80 nm. Within these pores Ni-nanostructures are deposited resulting in a ferromagnetic system with specific magnetic properties. SEM and TEM investigations are performed to get a correlation between morphology and magnetic behavior.

Introduction
moreOct. 28, 2011

Imaging of Nanoparticles

Raman spectroscopy is a powerful technique for analyzing atomic structure based on the inelastic scatter of light from molecules, with diverse applications including medical imaging and chemical sensing.
moreOct. 19, 2011

Daniel Guntli as New COO at NanoWorld

Daniel Guntli, formerly the Assistant General Management, has joined NanoWorld's management team as the new Chief Operating Officer.

"Dr Guntli is ideally positioned to take over the responsibility for our operations. He joined NanoWorld over three years ago and gained in-depth knowledge of NanoWorld's global operational processes and has a track record of successful project management and leadership," said NanoWorld CEO Manfred Detterbeck.
moreOct. 13, 2011

NanoArt 2011: Carbon Nanotubes Formed into a Tower

When Empa researchers receive prizes, it is usually to honour their scientific work. However, the photographs from the scanning electron microscope, taken by Siddhartha Pathak during his postdoctoral time at Empa in Thun, Switzerland have already been recognised several times for their aesthetic value. This was the case again recently, this time at "NanoArt 2011", where he was awarded first prize. moreOct. 06, 2011

JPK Instruments Launch the NanoWizard 3 NanoOptics AFM System

JPK Instruments, a  manufacturer of nanoanalytic instrumentation for research in life sciences and soft matter, continue to expand its family of  research systems with the availability of the NanoWizard 3 NanoOptics AFM system. The NanoWizard NanoOptics head comes with  physical and optical access to the sample from top and bottom as well as from front and side, even when the head and condenser are in place. Additionally, it has an integrated port for fiber SNOM applications. moreSep. 26, 2011

A New Twist to Quantum Dot Tracking - New Nanoparticle Changes Color Continuously

There are three issues, all of which are related to blinking, in quantum dot-based particle/molecule tracking. The recently reported "non-blinking quantum dots" address only one of the three issues. Here we report a new class of quantum dot-based composite nanoparticles that emit fluorescence with continuous intensity and alternating color, effectively addressing all three blinking-related issues, as well as providing greatly enhanced brightness compared with single quantum dots. moreSep. 06, 2011

3D Nanoparticle Tracking with Conventional Inverted Optical Microscope

Nanoparticles are becoming ubiquitous in many areas of biology and chemistry where they are finding a myriad of uses, including in arrays as chemosensing and biosensing platforms, as building blocks for more complicated structures, and individually as alternatives to fluorescent molecules and quantum dots as labels in bioanalysis. In colloidal systems, interactions of particles of the order of 100nm to 1mm control the behavioral characteristics, for instance the interaction of fat particles and proteins determine whether milk coagulates into cheese or yoghurt. more