Scientists develop the world's thinnest balloon

Aug 11, 2008
Scientists have developed the world's thinnest balloon that is impermeable to even the smallest gas molecules. Above is a multi-layer graphene membrane that could be used in various applications, including filters and sensors. Image: Jonathan Alden

(PhysOrg.com) -- Researchers in New York are reporting development of the world's thinnest balloon, made of a single layer of graphite just one atom thick. This so-called graphene sealed microchamber is impermeable to even the tiniest airborne molecules, including helium.

It has a range of applications in sensors, filters, and imaging of materials at the atomic level, they say in a study scheduled for the August 13 issue of ACS' Nano Letters.

Paul L. McEuen and colleagues note that membranes are fundamental components of a wide variety of physical, chemical and biological systems, found in everything from cellular compartments to mechanical pressure sensing.

Graphene, a single layer of graphite, is the upper limit: A chemically stable and electrically conducting membrane just one atom thick. The researchers wanted to answer whether such an atomic membrane would be impermeable to gas molecules and easily incorporated into other devices.

Their data showed that graphene membranes were impermeable to even the smallest gas molecules. These results show that single atomic sheets can be integrated with microfabricated structures to create a new class of atomic scale membrane-based devices. We envision many applications for these graphene sealed microchambers, says McEuen. These range from hyper-sensitive pressure, light and chemical sensors to filters able to produce ultrapure solutions.

Article: dx.doi.org/10.1021/nl801457b

Provided by American Chemical Society

Explore further: A new way to convert light to electrical energy

add to favorites email to friend print save as pdf

Related Stories

Fighting the global water scarcity issue

13 hours ago

According to the World Water Management Institute, over one-third of the human population is affected by water scarcity. If nothing is done to prevent it, an estimated 1.8 billion people will be living in ...

Graphene paints a corrosion-free future

Sep 11, 2014

The surface of graphene, a one atom thick sheet of carbon, can be randomly decorated with oxygen to create graphene oxide; a form of graphene that could have a significant impact on the chemical, pharmaceutical ...

Graphene's love affair with water

Feb 13, 2014

Graphene has proven itself as a wonder material with a vast range of unique properties. Among the least-known marvels of graphene is its strange love affair with water.

Recommended for you

A quantum leap in nanoparticle efficiency

1 hour ago

(Phys.org) —New research has unlocked the secrets of efficiency in nanomaterials, that is, materials with very tiny particles, which will improve the future development of chemical sensors used in chemical ...

Gold nanoparticle chains confine light to the nanoscale

Oct 29, 2014

A multidisciplinary team at the Centre d'Elaboration de Matériaux et d'Etudes Structurales (CEMES, CNRS), working in collaboration with physicists in Singapore and chemists in Bristol (UK), have shown that ...

User comments : 6

Adjust slider to filter visible comments by rank

Display comments: newest first

ShadowRam
5 / 5 (1) Aug 11, 2008
impermeable to even the smallest gas molecules??

Including Hydrogen?.. interesting...
Egnite
5 / 5 (1) Aug 11, 2008
This so-called graphene sealed microchamber is impermeable to even the tiniest airborne molecules, including helium


Lol there is mention of helium but not of Hydrogen. I guess better balloons for helium is more important than any breakthrough in Hydrogen storage.
Alleg
5 / 5 (1) Aug 11, 2008
impermeable to even the smallest gas molecules??

Including Hydrogen?.. interesting...
Hydrogen is not a gas molecule, it is an element. H2 is though and I suspect the statement in the article still hold true to that.
g86
not rated yet Aug 11, 2008
I found a cool article about helium balloons at http://graycarbon.com
bredmond
4.5 / 5 (2) Aug 11, 2008
Would this material do well against tearing? Can the thickness be increased? Would this material harm the skin? It is obviously impermeable to sperm, HIV and other STDs. What I mean is, can it be used for condoms? Seriously.
Graeme
4 / 5 (1) Aug 12, 2008
It should be as harmless to the skin as graphite. That is messy but harmless.
The picture looks more like a blister than a balloon.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.