NanoFocus
October 17, 2011

Shedding Nanoparticles
Materials Science: Chemists observe metal objects sloughing off ions to form nanoparticles.
October 17, 2011

Rules For Design
Materials Science: Guidelines predict structures formed by nanoparticles and DNA linkers.
October 17, 2011

Linker-Free Molecular Wires
Electronics: Metal-carbon bonds increase electrical conductance.
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October, 2011
October 17, 2011
Shedding Nanoparticles
Materials Science: Chemists observe metal objects sloughing off ions to form nanoparticles.
Rules For Design
Materials Science: Guidelines predict structures formed by nanoparticles and DNA linkers
Linker-Free Molecular Wires
Electronics: Metal-carbon bonds increase electrical conductance
October 14, 2011
Pushing Raman To The Nanoscale
Materials Analysis: Imaging method reveals nanometer-sized defects and contaminants on graphene.
September, 2011
September 28, 2011
Designing Lithium-Ion Batteries To Last
Cathode Materials: Encasing sulfur in nanofibers could help high-energy batteries survive repeated recharging.
September 12, 2011
Nanomedicines Stick To Cellulose
Nanoparticle Safety: Excreted nanoparticles containing drugs could pose a threat in the environment.
September 1, 2011
Method Separates Hybrid Nanoparticles
ACS Meeting News: Chromatographic method purifies complex magnetic nanostructures.
August, 2011
August 31, 2011
Making Greener Flame Retardants
ACS Meeting News: Environmentally friendly films protect cotton and foam from flames and heat.
August 24, 2011
Gold Nanoparticles Help Scientists Detect Growth-Promoting Drugs
Food Safety: New assay could detect illegal β agonists in livestock.
August 8, 2011
Method Could Resolve Nanosilver's Cloudy Toxicity Picture
Nanomaterials: Cloud point extraction could help distinguish between silver nanoparticles and silver ions.
Solar-Cell Layer Comes Into View
Microscopy method reveals the location and morphology of electron donor, acceptor, and blended regions in photoactive layers.
August 5, 2011
Graphene From Garbage
Materials: Low-value, impure carbon sources yield high-quality graphene.
June, 2011
June 27, 2011
Nanoparticles Working Together
Cancer Therapy: Tiny materials 'talk' to one another to locate, treat tumors in mice
Toward Nanotech Regulation
EPA, FDA release proposals for obtaining information about nanotechnology products
June 13, 2011
Building Small
Nanotechnology makes inroads in the construction industry.
Sticky Tape Sorts Nanotubes
Nanoscientists unveil sticky polymer films that selectively separate metallic and semiconducting SWNTs
June 9, 2011
A Simple Test Spots Bacteria
Biosensors: A strip of filter paper changes color when exposed to bacteria.
June 6, 2011
Nanoparticles: Research Firm Tries Its Hand At Making Self-Healing Paint
May, 2011
May 30, 2011
Organic Layer Smooths Dielectric Films
Insulating layer in nanoelectronic devices benefits from an organic undercoat
Peptide-Nanotube Assemblies Create Superstructures
Specially designed biomolecules coil around nanotubes and guide supramolecular ordering
Using The Force On Cancer
Researchers probe the mechanics of tumor cells with atomic force microscopy and explore the technique as a diagnostic tool
Molecules Vanish In Nanotubes
Molecular dipoles induce mirror-image nanotube dipole that screen molecules from IR light
Nanotubes Improve OLED Performance
Low-voltage transistors incorporating carbon nanotubes could make large OLED display screens a practical possibility
May 18, 2011
Fruit Flies Shake Off Silver Nanoparticles
Nanomaterials: Scientists investigate the chronic toxicity of nanoparticles in the insects
Wiring A Single-Molecule Circuit
Electronics: Researchers link polymer nanowires to single molecules
Deep-Sea Vents Dispense Nutritious Pyrite Nanoparticles
Iron from pyrite (FeS2) particles delivered over long distances helps feed oceanic bacteria and plankton
Inorganic Caps Give Nanocrystals A Boost
Replacing organic ligands with inorganic ones selectively boosts electron transport
Microrockets Take Off
Diagnostics: Tiny motors capture cancer cells and DNA from biological fluids
New Route To Graphene Devices
Nanoelectronics: Procedure draws on industry-compatible methods and materials
Probing Nanotube Photochemical Properties
ACS Meeting News: Study calls into questions key assumptions about using nanotubes in solar cells
Nanoparticles Impact Pregnancy In Mice
Study provides more detailed information about the size and chemistry of nanoparticles that can lead to problems
Single-Molecule Potentiometers
ACS Meeting News: As electrode moves along molecular wire, conductance of single-molecule device changes
April, 2011
April 18, 2011
Heterogeneous Tandem Catalysis
Catalysis: Nanostructured layered material performs multistep reaction.
April 11, 2011
New Route To Graphene Devices
Nanoelectronics: Procedure draws on industry-compatible methods and materials.
Nanoparticles Impact Pregnancy In Mice
Study provides more detailed information about the size and chemistry of nanoparticles that can lead to problems.
March, 2011
March 31, 2011
Nanoparticles Shorten Roundworms' Lives
Nanomaterials: Even at low concentrations, cerium oxide nanoparticles harm C. elegans.
March 29, 2011
Probing Nanotube Photochemical Properties
ACS Meeting News: Study calls into questions key assumptions about using nanotubes in solar cells.
March 28, 2011
Porphysomes Do It All
Biophotonics: Lipid-porphyrin nanovesicles offer both cancer diagnosis and treatment.
Stressing Strengthens Nanocomposites
Polymer-nanotube composites exhibit a property characteristic of bone and biomechanical tissues.
Press-And-Go Fingerprinting
Polyurethane-fluorescein nanofiber mats lift and quickly image latent fingerprints from different types of surfaces.
A Salty Energy Source
A newly devised battery can store the entropic energy dissipated as freshwater and saltwater mix.
March 21, 2011
Finding Phosphoproteins
Protein Analysis: Nanopolymer helps scientists detect and quantify an important protein modification.
March 17, 2011
Nanotube-Based Filter Cleans Drinking Water
Water Treatment: New filtration system removes bacteria and viruses
March 14, 2011
Nanodiamonds Fight Cancer
Chemotherapy: Faceted nanomaterials deliver drugs to tumor cells.
Poised To React
Nanoscience: Tethering molecules to gold surface forces reaction.
March 9, 2011
Confinement In Nanotubes Boosts Catalyst Performance
Chiral Catalysis: Nanoscale proximity of reactants enhances asymmetric hydrogenation
March 7, 2011
'Shaving' Graphene
Nanoscience: Zinc treatment chemically peels off layers of graphene
February, 2011
February 28, 2011
A Simple Test For Botulism Toxin
Homeland Security: A new fluorescence-based assay could find use as a field test
February 21, 2011
Connecting Bacteria
Microbiology: Nanotube links between cells foster exchange of genes and proteins
February 16, 2011
Paper Versus Pathogen
Water Treatment: Filter paper containing silver nanoparticles could cleanse bacteria-laden water
February 14, 2011
Platinum Nanocrystals Show Their Best Face
A novel strontium titanate support material guides crystals to grow with nonstandard geometry.
Gold Sulfide's Diverse Geometry
A computational study has determined that S–Au–S building blocks are key to unique cluster structures
February 7, 2011
Peeling Away Nanosheets
Materials Science: Liquid exfoliation enhances materials' properties.
Characterizing Inhaled Nanoparticles
January, 2011
January 31, 2011
Parallel Printing At The Nanoscale
Lithography: Simplified patterning method reproducibly yields thousands of copies.
January 24, 2011
Bringing Disorder To Titanium Dioxide
Change allows the photocatalyst to absorb beyond the ultraviolet range, into visible and infrared spectrum.
January 17, 2011
3-D Nanoscale Chemical Maps Of Teeth
Tomography analysis reveals compositional differences in microscopic tooth structures.
Interfacial Properties Boost Lasing by Quantum Dots
Two-monolayer-thin alloy layer in core-shell nanocrystals aids optics applications.
January 10, 2011
Nanorings Synthesized Simply
Templating: Small templates and building blocks combine to make extra-large structures.
Patterned Polymer Nanowire Arrays
Polymer nanowires can be fabricated on a large scale via a combination of laser patterning and plasma etching.
New Method For Monitoring Heparin
Tracking heparin-protamine nanoparticle formation could improve control of anticoagulation drugs during surgery.
December, 2010
December 6, 2010
New Rubber Beats Heat And Cold
Materials: Nanotube rubber maintains its viscoelasticity in extreme temperatures.
November, 2010
November 22, 2010
Ice Repellent
Nanotechnology: Small structures keep water off supercooled surfaces.
November 2, 2010
Spinning Both Ways
Nanotechnology: Researchers develop molecular motor that whirls in two directions.
October, 2010
October 25, 2010
Nanodiamond Catalyst Drives Reaction
Industrial Chemistry: Hybrid material mediates steam-free dehydrogenation.
October 11, 2010
Nobel Prize In Physics
Awards: Andre Geim and Konstantin Novoselov land prize for discovering graphene.
Tracking mRNA Particles
3-D optical imaging is used to follow mRNA particles inside yeast cells with nanometer-scale precision.
September, 2010
September 21, 2010
The Fate of Silver Nanoparticle Waste
Water Quality: Silver in our cosmetics and clothes can end up as silver sulfide nanoparticles in sewer sludge.
September 20, 2010
Enabling Nanoscale Spectroscopy
Start-up firm Anasys hopes to open new vistas in material and life sciences at the nanoscale level.
September 2, 2010
Nanopore-Based Screening
DNA Analysis: Method detects single molecules passing through holes in graphene.
August, 2010
August 30, 2010
Making Edible Nanostructures
ACS Meeting News: Food-grade starting materials yield new metal-organic framework compounds.
August 25, 2010
A New Route To Germ-Killing Photons
ACS Meeting News: Lanthanide nanomaterials convert visible light into disinfecting ultraviolet light.
August 24, 2010
SERS Hot Spots Probed
ACS Meeting News: Imaging shows larger-than-expected SERS-analyzable spots on nanoparticles.
August 23, 2010
Nanofiber Scaffolds As Brain Bandages
<Aligned nanofibers are an improved substrate for making dura mater grafts to aid healing after neurosurgery.
Crystallite Seeds Shape Up Micelles
ACS Meeting News: Templated self-assembly process produces highly uniform cylindrical nanomaterials.
August 16, 2010
A Wire For Spying On Cells
Nanotechnology: Tiny bioprobe features a field-effect transistor built from a kinked silicon nanowire.
Shining A Light On Nanotoxicity
Nanomaterials: One class of carbon nanotubes produces reactive oxygen species under sunlight.
August 9, 2010
Quantum Dot Mystery Resolved
A secondary phosphine in the starting material seems to be key to forming PbSe nanomaterials.
August 2, 2010
Power From Motion
Nanogenerators exploit mechanical processes inside and outside the body to power electronic devices.
July, 2010
No stories in July
June, 2010
June 28, 2010
Nanostructure Dynamics
Imaging: Time-resolved electron tomography provides 3-D views on ultrafast timescale.
June 21, 2010
Fiber Bundles Line Up
Materials Science: Gel-like 'noodle' material could act as cell scaffolds.
The Butterfly Effect
Nanoscience: Gyroid nanostructures give butterflies their glimmer.
June 14, 2010
Catalyst Goes Viral
Nanotechnology: Material grown on a virus template performs better than catalysts grown conventionally.
Nanoreduction Of Graphene Oxide
Materials: Scanning probe method patterns insulator with conducting features.
May, 2010
May 24, 2010
Dendrimersomes Debut
Supramolecular Chemistry: Self-assembled dendrimer-based structures could deliver drugs, other substances.
May 17, 2010
Rise Of The DNA Robots
Nanotechnology: Molecular machines stroll autonomously, transport cargo.
May 10, 2010
Plastic Antibodies Target Peptide
Nanotechnology: Molecularly imprinted nanoparticles remove bee toxin from blood.
April, 2010
April 19, 2010
Enabling Chemistry Experiments In Space
Dispersing Nanotubes Renders Them Nontoxic
Mouse study indicates that nanotube aggregates, not individual tubes, lead to pulmonary toxicity.
Thick-And-Thin Nanowire Segments
A new electrochemical method yields nanowires with alternating dense and porous sections.
April 12, 2010
Nanotechnology Investment
U.S. Focuses on commercialization and strengthening environmental, health, and safety research.
Data Storage Goes Organic
Materials Science: Device relies on changes in azo conductivity.
Salty Coronene Sorts Carbon Nanotubes
Scientists take advantage of organic salt's π interactions to separate metallic and semiconducting nanotubes.
April 5, 2010
Bright Lights For Imaging
Fluorinated dyes take a laser licking but keep on ticking.
March, 2010
March 29, 2010
Probing Nanotoxicity
Analytical methods provide insight into hazards of nanomaterials.
March 22, 2010
Gold Dust Extends Raman's Reach
Spectroscopy: Nanoparticles open scattering technique to new applications.
March 1, 2010
Nanotube Thermocell Harvests Waste Heat
Device could capture energy lost as low grade heat in industrial waste streams.
February, 2010
February 15, 2010
Very Cool Chemistry
Fundamentals: Reactions at nano-Kelvin temperatures illustrate the role of quantum mechanics in reactivity.
A Big Picture Look At The Small Scale
Book's lush illustrations, engaging text bring micro- and nanoscale science to a broad audience.
February 8, 2010
Lax About Nanomaterial Handling
Exposure: many protective measures are not being utilized, survey shows.
Paul Alivisatos
LBNL's new director focuses on renewable energy, climate.
February 1, 2010
Medication On Demand
Drug Delivery: Electric field spurs nanoscale device to release cargo.
Tiny Features Keep Termite Wings Dry
Star-shaped microstructures and tiny hairs with nanoscale ridges wick away water to keep the insects flying.
January, 2010
January 25, 2010
Nanowire Arrays Map Neural Circuits
High resolution method reveals electrical connections in the brain .
January 18, 2010
Finding Green In Gold
Materials: Precious metal in nanostructured form mediates oxidations selectively.
Graphene Nanogaps For DNA
A narrow gap in a graphene sheet attached to gold electrodes has been proposed as a means to sequence DNA .
January 11, 2010
Gilded Graphene
Materials: Gold coat and microscopy methods offer new way to see and analyze atoms-thick carbon sheets.
Clay-Polymer Nanolayers Improve Gas-Barrier Films
A composite composed of alternating nanolayers could better protect electronics, food, and pharmaceuticals.
January 4, 2010
Titania's Prowess
Catalysis: Gold's surprising reactivity may be partly due to oxide support.
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