Nano News & Events

New nanocoating for space tech applications

InterNano Industry News - June 22, 2017 - 3:45am
Experimental physicists have developed a thin nanomaterial with superconducting properties. Below about -200 C these materials conduct electricity without loss, levitate magnets and can screen magnetic fields.
Categories: Nanotechnology News

Printed transistors consisting entirely of 2-D nanomaterials

InterNano Industry News - June 22, 2017 - 3:45am
Leading innovation could transform everyday products (like your milk carton) into intelligent smart devices.
Categories: Nanotechnology News

Researchers Use Flash Light Interactions to Improve Silver Nanowires for Flexible Transparent Conducting Electrodes

InterNano Industry News - June 10, 2017 - 3:45am
Flexible transparent conducting electrodes (FTCEs) are an essential element of flexible optoelectronics for next-generation wearable displays, augmented reality (AR), and the Internet of Things...
Categories: Nanotechnology News

Engineers develop novel lens for super-resolution imaging

InterNano Industry News - June 10, 2017 - 3:45am
Discovery breaks resolution limitations in microscopy; Potential applications in high precision failure inspection and biological research.
Categories: Nanotechnology News

Carbon nanotubes self-assemble into tiny transistors

InterNano Industry News - June 10, 2017 - 3:45am
Researchers have developed a method to select semiconducting nanotubes from a solution and make them self-assemble on a circuit of gold electrodes.
Categories: Nanotechnology News

A better understanding of nanomaterials

InterNano Industry News - June 10, 2017 - 3:45am
In the past six years, the project 'Opportunities and Risks of Nanomaterials' intensively studied the development, use, behaviour and degradation of engineered nanomaterials, including their impact on humans and on the environment.
Categories: Nanotechnology News

Flash Nano: No compromise – hexagonal boron nitride production scales up

InterNano Industry News - June 10, 2017 - 3:45am
Large quantities of high-quality 2D hexagonal boron nitride can be produced by diffusion and segregation of chemical vapour deposits.
Categories: Nanotechnology News

New Layered Material Could Help Develop Reduced Graphene Oxide-Based Transistors

InterNano Industry News - June 10, 2017 - 3:45am
A research team at North Carolina State University (NC State) has developed a new method for changing positively charged (p-type) reduced graphene oxide (rGO) into negatively charged (n-type) rGO....
Categories: Nanotechnology News

New ultrafast flexible and transparent memory devices could herald new era of electronics

InterNano Industry News - June 10, 2017 - 3:45am
An innovative new technique to produce the quickest, smallest, highest-capacity memories for flexible and transparent applications could pave the way for a future golden age of electronics.
Categories: Nanotechnology News

Next generation perovskite solar cells with new world-record performance

InterNano Industry News - June 8, 2017 - 3:45am
A recent study has presented a new cost-efficient way to produce inorganic-organic hybrid perovskite solar cells which sets a new world-record efficiency performance, in particular photostability.
Categories: Nanotechnology News

Graphene lid revitalizes imaging technique

InterNano Industry News - June 8, 2017 - 3:45am
By capping liquids with graphene, an ultrathin sheet of pure carbon, researchers have revitalized and extended a powerful technique to image surfaces.
Categories: Nanotechnology News

Fast and simple way to make highly ordered porous films

InterNano Industry News - June 8, 2017 - 3:45am
Researchers have developed a new method to create films of porous metal-organic frameworks fully aligned on inorganic substrates. The method is simple, requiring only that the substrate and an organic linker are mixed under mild conditions, and fast, producing perfectly aligned films within minutes.
Categories: Nanotechnology News

New Projects Create a Foundation for Next-Gen Flexible Electronics

InterNano Industry News - June 8, 2017 - 3:45am
NewsFlexible electronics are circuits and systems that can be bent, folded, stretched or conformed without losing their functionality.Contributed Author: Georgia Institute of TechnologyTopics: Engineering
Categories: Nanotechnology News

A big leap toward tinier lines

InterNano Industry News - June 8, 2017 - 3:45am
Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns.
Categories: Nanotechnology News

Ink-jet printable and biocompatible layered electronics

InterNano Industry News - June 8, 2017 - 3:45am
Researchers have developed biocompatible, water-based inks containing graphene and related layered materials as building blocks for ink-jet printable electronic devices.
Categories: Nanotechnology News

CRS Report on Science and Technology Issues in the 115th Congress Includes Nanotechnology and the NNI

InterNano Industry News - June 8, 2017 - 3:45am
The Congressional Research Service (CRS) prepared a March 14, 2017, report entitled Science and Technology Issues in the 115th Congress.  The report outlines science and technology policy issues that may come before the 115th Congress.  The report notes that, given the rapid pace of science and technology advancement and its importance in many diverse public policy issues, issues not discussed in this report may come before Congress.  The selected issues are grouped into nine categories.  The category Physical and Material Sciences includes the subcategory “Nanotechnology and the National Nanotechnology Initiative (NNI).”  The report states that development of this field has been fostered by “significant and sustained” public investments in nanotechnology research and development (R&D).  In 2001, President Clinton launched the NNI to accelerate and focus nanotechnology R&D to achieve scientific breakthroughs and to enable the development of new materials, tools, and products.  According to the report, more than 60 nations subsequently established programs similar to the NNI.  Through fiscal year (FY) 2016, Congress appropriated approximately $21.8 billion for nanotechnology R&D; the President requested $1.4 billion in FY 2017 funding.  In 2003, Congress enacted the 21st Century Nanotechnology Research and Development Act (P.L. 108-153), providing a legislative foundation for some of the activities of the NNI, establishing programs, assigning agency responsibilities, and setting authorization levels through FY 2008.  The report notes that although legislation has been introduced in successive Congresses to amend and reauthorize the Act, none has been enacted into law.  According to the report, Congress “has directed its attention primarily to three topics that may affect the realization of nanotechnology’s hoped-for potential:  R&D funding; U.S. competitiveness; and environmental, health, and safety (EHS) concerns.”
Categories: Nanotechnology News

SCCS Issues Final Opinion on Additional Coatings for Titanium Dioxide (Nano Form) as UV-Filter in Dermally Applied Cosmetic Products

InterNano Industry News - May 31, 2017 - 3:45am
On March 7, 2017, the Scientific Committee on Consumer Safety (SCCS) issued a final opinion on additional coatings for titanium dioxide (nano form) coated with cetyl phosphate, manganese dioxide, or triethoxycaprylylsilane as an ultraviolet (UV)-filter in dermally applied cosmetics.  The conclusion states that given a general lack of dermal absorption and low general toxicity of nano-forms of titanium dioxide, SCCS considers that the use of the three titanium dioxide nanomaterials, coated with either cetyl phosphate, manganese dioxide, or triethoxycaprylylsilane, can be considered safe for use in cosmetic products intended for application on healthy, intact, or sunburned skin.  SCCS notes that the ingredients used in some types of products (e.g., in lipsticks) may be incidentally ingested.  The potential harmful effects of manganese dioxide should therefore be taken into account if the manganese dioxide-coated nanomaterials are to be used for applications that could lead to oral ingestion.  The opinion does not apply to applications that might lead to exposure of the consumer’s lungs to the titanium dioxide nanoparticles through the inhalation route (such as powders or sprayable products).  SCCS states that if any new evidence emerges in the future to show that the titanium dioxide nanoparticles used in a sunscreen formulation can penetrate skin to reach viable cells, then it may consider revising this assessment.  SCCS notes that the opinion does not consider the potential ecotoxicological impacts of nano titanium dioxide when released into the environment.  As reported in our March 14, 2017, blog item, SCCS has begun a public consultation on its opinion on titanium dioxide (nano form) as UV-filter in sprays.  The public consultation will end May 14, 2017.
Categories: Nanotechnology News

Freestanding hierarchical porous carbon film derived from hybrid nanocellulose for high-power supercapacitors

InterNano Industry News - May 31, 2017 - 3:45am
Abstract Nanocellulose is a sustainable and eco-friendly nanomaterial derived from renewable biomass. In this study, we utilized the structural advantages of two types of nanocellulose and fabricated freestanding carbonized hybrid nanocellulose films as electrode materials for supercapacitors. The long cellulose nanofibrils (CNFs) formed a macroporous framework, and the short cellulose nanocrystals were assembled around the CNF framework and generated micro/mesopores. This two-level hierarchical porous structure was successfully preserved during carbonization because of a thin atomic layer deposited (ALD) Al2O3 conformal coating, which effectively prevented the aggregation of nanocellulose. These carbonized, partially graphitized nanocellulose fibers were interconnected, forming an integrated and highly conductive network with a large specific surface area of 1,244 m2·g–1. The two-level hierarchical porous structure facilitated fast ion transport in the film. When tested as an electrode material with a high mass loading of 4 mg·cm–2 for supercapacitors, the hierarchical porous carbon film derived from hybrid nanocellulose exhibited a specific capacitance of 170 F·g–1 and extraordinary performance at high current densities. Even at a very high current of 50 A·g–1, it retained 65% of its original specific capacitance, which makes it a promising electrode material for high-power applications.
Categories: Nanotechnology News

Rapid growth of angle-confined large-domain graphene bicrystals

InterNano Industry News - May 31, 2017 - 3:45am
Abstract In the chemical vapor deposition growth of large-area graphene polycrystalline thin films, the coalescence of randomly oriented graphene domains results in a high density of uncertain grain boundaries (GBs). The structures and properties of various GBs are highly dependent on the misorientation angles between the graphene domains, which can significantly affect the performance of the graphene films and impede their industrial applications. Graphene bicrystals with a specific type of GB can be synthesized via the controllable growth of graphene domains with a predefined lattice orientation. Although the bicrystal has been widely investigated for traditional bulk materials, no successful synthesis strategy has been presented for growing two-dimensional graphene bicrystals. In this study, we demonstrate a simple approach for growing well-aligned large-domain graphene bicrystals with a confined tilt angle of 30° on a facilely recrystallized single-crystal Cu (100) substrate. Control of the density of the GBs with a misorientation angle of 30° was realized via the controllable rapid growth of subcentimeter graphene domains with the assistance of a cooperative catalytic surface-passivation treatment. The large-area production of graphene bicrystals consisting of the sole specific GBs with a tunable density provides a new material platform for fundamental studies and practical applications.
Categories: Nanotechnology News