Foresight Nanotech Institute Logo
Image of nano

Archive for the 'Nanoscale Bulk Technologies' Category

Circuits of graphitic nanoribbons grown from aligned DNA templates

Posted by Jim Lewis on September 17th, 2013

How complex could circuits be made using precisely positioned DNA nanostructures as templates to grow graphene nanoribbons?

Precise mechanical manipulation of individual long DNA molecules

Posted by Jim Lewis on September 12th, 2013

“Molecular threading”, a nanotechnology developed by Halcyon Molecular and now owned by Aeon Biowares, enables precise placement of individual long molecules of DNA, either for sequencing or for nanofabrication of novel DNA nanostructures.

Next Foresight Conference on Nanotechnology in February 2014

Posted by Jim Lewis on August 28th, 2013

The Conference to be held February 7-9, 2014 in Palo Alto, California will emphasize the integration of nano-engineered devices and materials into larger, more complex systems.

Nanocrystal-in-glass composite controlled by voltage

Posted by Jim Lewis on August 23rd, 2013

Covalent bonding of nanocrystals into a glass makes the glass ‘smart’ enough to transmit heat, light, both, or neither as desired.

Improved molecular targeting via cellular automata

Posted by Stephanie C on August 12th, 2013

In simplest terms, cellular automata can be thought of as groups of ‘cells’ in which the state of an individual cell will flip depending on the states of its neighbors. A ‘cell’ can be a pixel, a molecule, etc. The mathematical rules associated with cellular automation are complex and have been applied to fields as [...]

Nanoscale box aids single-molecule optical detection

Posted by Stephanie C on July 29th, 2013

Good old fashioned boxes are here to stay, even in the context of nanoscale devices. Across a broad range of technologies and size regimes, boxes serve as containers for components, barriers against contaminants and/or radiation, and, as in the case of cell membranes, can be permeable to allow selected interactions between the interior and exterior. [...]

DNA nanotechnology positions components to optimize single-molecule fluorescence

Posted by Jim Lewis on July 19th, 2013

A pillar constructed and positioned using DNA nanotechnology holds two gold nanoparticles and a dye molecule to enhance fluorescence over a hundred fold.

Nanotechnology, optical lithography, and petabyte data storage media

Posted by Jim Lewis on July 16th, 2013

Two current-day nanotechnologies using two-different optical techniques and two different media will soon make possible petabyte data storage media, in one case with 100,000 times the storage lifetime of current optical disks.

Quantum dot conduction impacted by stoichiometry, not dangling bonds

Posted by Stephanie C on May 29th, 2013

Quantum dots are semiconducting, nanoscale clusters that show electronic characteristics distinct from both bulk-scale materials and single molecules. Their special characteristics make quantum dots attractive for a broad range of potential applications, including photovoltaics and nanoscale transistors. The size and shape of quantum dots impact electrical properties and can therefore be used to tune the [...]

Germanane: germanium's answer to graphane

Posted by Stephanie C on May 15th, 2013

Soon after graphene sheets were being produced on a laboratory scale routinely, researchers began producing the hydrogenated version graphane (with a hydrogen atom on each carbon). This step is one of many approaches aimed at harnessing graphene’s powerful conductivity and is also being explored for hydrogen storage and other potential applications (more info in this [...]

Silicene: silicon's answer to graphene

Posted by Stephanie C on May 1st, 2013

On the list of potential post-silicon materials for electronics and chips is none other than silicon. More specifically, silicene — 2D sheets of hexagonally arranged silicon atoms, structurally analogous to graphene and experimentally characterized by physicist Guy Le Lay of Aix-Marseille University in France (2012 abstract here). While graphene possesses exceptional performance qualities, it can’t [...]

Superparamagnetism-explicated-for us

Posted by Stephanie C on April 17th, 2013

Even though the sound of it is something quite atrocious, superparamagnetism may become a familiar term in the context of nanoscale electronics and devices. Loosely speaking, superparamagnetism is a size-based phenomenon in which materials that are ferromagnetic on the macroscale — meaning predisposed toward strong magnetization at room temperature, such as iron and nickel — [...]

New advancement in 3D imaging of nanoparticles at atomic resolution

Posted by Stephanie C on March 28th, 2013

Researchers from UCLA’s California NanoSystems Institute and Northwestern University have combined multiple imaging techniques to produce high quality 3D images of platinum nanoparticles, allowing advanced visualization of atomic-scale structural defects (an important advancement over X-ray crystallography). The original 2012 work, published in Nature and posted by Jim Lewis here, used electron tomography to study 10-nm [...]

Computationally designed peptide sneaks nanoparticles past immune system

Posted by Jim Lewis on March 15th, 2013

Nanoparticles decorated to avoid immune system recognition were tested in mice and shown to survive longer and deliver more imaging dye and drug to tumor cells.

Proposed Brain Activity Map may also advance nanotechnology

Posted by Jim Lewis on March 1st, 2013

A proposed large project to produce a dynamic map of the functional connectome of the human brain will require a convergence of neuroscience, biotechnology, nanotechnology, and computation, and may therefore spur the development of advanced nanotechnology leading to molecular manufacturing.

Studying environmental impacts of nanoparticles using mesocosms

Posted by Stephanie C on February 28th, 2013

The advent of new technologies is typically followed by new government regulation, and in the absence of data, fear-based reactionism can have far too much influence on policy. Quality research studies on real risks and impacts of nanoscale technologies can help lead to legitimate scientific consensus and appropriate regulation. Engineered nanoparticles draw particular attention, because [...]

Nanotechnology delivers potent anti-cancer agent where it needs to go

Posted by Jim Lewis on February 22nd, 2013

Core-shell nanocapsules deliver a potent protein complex to the nucleus of cancer cells where it induces them to commit suicide, while the complex degrades harmlessly in the cytoplasm of normal cells.

Christine Peterson interviewed on nanotechnology

Posted by Jim Lewis on February 12th, 2013

An interview with Foresight Co-Founder and Past President Christine Peterson covering both the current state and the future prospects of nanotechnology is available on Youtube.

Two types of artificial muscle from nanotechnology

Posted by Jim Lewis on December 13th, 2012

One research group working with rotaxanes and another group working with carbon nanotubes have provided two very different solutions to the problem of producing motion via artificial muscles at different scales from the nano to the macro.

New strides in understanding mechanochemical reactions

Posted by Stephanie C on December 2nd, 2012

New time-resolved, high-energy Xray studies of mechanochemical (ball milling) reactions take another step toward reducing the gap between current and future machine-phase chemistry.