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online seminar

       

Environmental effects of oxide nanomaterials

Stanislaus Wong presents on the role of chemical composition, morphology, structure, size, and shape in the toxicity of nanomaterials

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Buyer’s Guide

Scanning probe microscopy

Sponsored by Bruker Nano Surfaces

Bruker’s Inspire™ delivers, for the first time, highest-resolution nanoscale chemical and property mapping combined with radical productivity advances and uncompromised AFM performance. The integrated, self-optimizing system acquires nanoscale infrared absorption and reflection maps at regular AFM imaging speeds, without the limitations of indirect mechanical approaches or added complexity for the user.

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Lab talk

Nanotechnology research highlights: find out what the authors have to say

Rediscovered trapping mechanism favours smaller particles

Under the right conditions AC electrophoresis effects can dominate and lead to more efficient trapping especially for smaller particles or molecules

Single-molecule switching on an insulating surface

Room-temperature manipulation using non-contact AFM could ultimately benefit molecular electronics applications

Planar structure extends lifetime of memristor

Embedded bottom electrode improves endurance of non-volatile memory candidate by permitting kink-free switching layer and top electrode

HV-SSRM profiles carriers in nanowire-based transistors

Imec group maps quantitatively the distribution of active dopants in confined 3D-volumes

Simple EBID process delivers robust nanoneedle AFM probe

Shock-absorbing properties of free-standing carbon pillar suit imaging of challenging samples including biological material

Commercial upright microscope integrated with AFM for TERS study

Optical mask and "tip at the end of the cantilever" accommodate non-transparent samples

Force scanning: quick maps and measurements of living cells

Versatile AFM technique gives high-resolution, spatial modulus maps at micro- and nanoscales

Tip measures nanochannel kinetics in thin water films

AFM inscribes gratings on ice-like islands on a mica substrate at room temperature

Hydro-tweezers build nanodevices

Flow scheme aligns individual nanowires ready for assembly

Bimodal imaging reveals 5 nm superparamagnetic proteins in liquid

Force microscope exploits nanomechanical coupling regime to detect and image core-shell particles in liquid

Digging up metallic nanoparticles with an electron beam

Fast growth of superparamagnetic iron nanoclusters by ion implantation and electron beam annealing could benefit magnetic field sensing and data storage

Near-field thermal transport in laser-irradiated nanotips

Poynting vector analysis by Iowa State University team reveals strong effect of taper angle on thermal transport

Finding a needle in a chemical haystack

Tip-enhanced Raman scattering differentiates between various SWCNTs and amorphous carbon contamination in a prepared mixture

Frequency-modulated SPM quantifies energy dissipation

Method compensates for frequency dispersion of piezo actuators to pinpoint dissipation detail

Real-time monitoring of angstrom-scale surface roughness

Scattering technique speeds up analysis of near-field etching

Vibrating edge cuts nanopatterns from viscoelastic block

Tunable, large-area technique fabricates wavy structures as small as 36 nm and suits slightly curved surfaces

Nanoparticles disrupt human cell line

Model cell line (Caco-2) used to evaluate exposure effects of manufactured nanomaterials

Tiny whiskers of carbon probed for 3D electronics role

SEM equipped with electrical probe stage and custom-built mechanical deformation instrument used to characterize miniature materials

High frequency pulsed MW-linear antenna plasmas configured for NCD

Routes towards large area and low temperature nanocrystalline diamond (NCD) growth

Taking MRI to the nanoscale by force

Force detection techniques can improve MRI sensitivity, resulting in spatial resolutions better than 10 nm