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Riccardo Sapienza: Using biomaterials for photonics

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Scanning probe microscopy

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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

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

Gold atoms assemble nanoislands on molybdenum surface

Polish team examines factors responsible for island-like growth and reveals modifications in deposited magnetic layer

Tiny magnets revealed under the microscope

Applying a bias to MFM probes excludes unwanted electrostatic interactions

Small-amplitude dynamic force microscope captures fine detail

Quartz cantilever and interferometric deflection sensor combination offers high-resolution imaging even when using a blunt tip

High-speed atomic force microscope achieves large scan sizes

Sample stage area of 6.5 mm × 6.5 mm allows convenient handling of larger specimens

Fabricating silicon nanowire circuits

AFM oxidation nanolithography used to produce chemical-sensing layout

Silver catalyst triggers growth of 2nm ultrathin single-crystal ZnO nanobelts

Simple silver-catalysed vapour transport method delivers uniform version of popular nanomaterial

Anomalous n-type transport observed in Pd-contacted CNTFET

Study offers new insight into electronics based on small diameter carbon nanotubes