Top ten journals in nanoscience and nanotechnology

According to this blog post, the top 10 journals in nanoscience and nanotechnology – based on 2008 impact factors – are :

1. Nature Nanotechnology, Impact Factor = 20.571
2. Nano Letters, Impact Factor = 10.371
3. Nano Today, Impact Factor = 8.795
4. Small, Impact Factor = 6.525
5. Lab on a Chip, Impact Factor = 6.478
6. Nanomedicine, Impact Factor = 6.093
7. ACS Nano, Impact Factor = 5.472
8. Biosensors & Bioelectronics, Impact Factor = 5.143
9. Nanotoxicology, Impact Factor = 3.720
10. Plasmonics, Impact Factor = 3.488

Carbon nanotubes can dramatically accelerate the germination and growth of plants

In the frame of a new study entitled Carbon Nanotubes Are Able To Penetrate Plant Seed Coat and Dramatically Affect Seed Germination and Plant Growth recently published in the online edition of ACS Nano, researchers have demonstrated that carbon nanotubes can penetrate thick seed coat and support water uptake inside tomato seeds. According to some of the authors : “The fact that nanomaterials have a strong influence on the growth kinetics of the plants is a clear indication of the bio-activity of these nanomaterials (…) The activated process of water uptake could be responsible for the significantly faster germination rates and higher biomass production for the seeds and seedlings that were exposed to carbon nanotubes [CNT], although the exact molecular mechanisms of CNT-induced water uptake inside plants seeds are not clear yet and require further investigation (…)” (see Nanowerk article and original publication for further details)

[[[ Additional link suggested by Nanocolors :

# Carbon nanotubes in sci-tech publications since 2000 ]]]

Differential toxicity of carbon nanomaterials in fruit flies

According to a new study carried out on Drosophila melanogaster fruit flies and published in Environmental Science & Technology :

– Larval fruit flies showed no physical or reproductive effects from consuming carbon nanoparticles (fullerene C60, carbon black, or single-walled or multiwalled nanotubes) in their food, “despite evidence that the nanomaterials are taken up and become sequestered in tissue

– Carbon black and single-walled nanotubes in dry form “adhered extensively to fly surfaces, overwhelmed natural grooming mechanisms, and led to impaired locomotor function and mortality” of exposed adult flies within a few hours

– Fullerene and multi-walled nanotubes in dry form “adhered weakly, could be removed by grooming, and did not reduce locomotor function or survivorship” of adult flies.

The authors conclude “that these differences are primarily due to differences in nanomaterial superstructure, or aggregation state, and that the combination of adhesion and grooming can lead to active fly borne nanoparticle transport.”

[[[ Additional links suggested by Nanocolors :

# Carbon nanoparticles toxic to adult fruit flies but benign to young

# Nanoparticles & ecotoxicity in biomedical publications since 2000 ]]]

Focus on nanotechnology publications

Ten nanotech journals / magazines and their websites are now referenced on Nanocolors :

Nature Nanotechnology  (impact factor : 14,917)

Nano Letters (impact factor : 10,317)

Nanomedicine (impact factor : 6,1)

Nano Today (impact factor : 5,929)

Nanotechnology (impact factor : 3,310)

International Journal of Nanomedicine (impact factor : 1,642)

Journal of Biomedical Nanotechnology (impact factor : 0,989)

Nano Magazine (n.a.)

Nanomedicine : Nanotechnology, Biology and Medicine (n.a.)

Nanoscale (n.a.)

(Find out about what impact factor indicates here). 

<<< Latest post update : 27/12/2009 >>>

Nanosensors and nanoprobes in sci-tech publications : volumetry since 2000

This chart was built by searching Scitation for publications mentionning the prefixes “nanosens” or “nanoprob” in their title or abstract. It is interesting to see that the rythm of development of nanosensing / nanoprobing  techniques varies a lot from year to year, with for example relatively high “bursts” of publications in 2004 and 2007.  Maybe we could sum it up like so : “Innovation is not a steady process. Creativity comes in bursts.”  Nevertheless, when examining other topics and nanotech trends, the evolution is often much more steady. Any comments on that ?


Scientific American nanotechnology feed

A nanotechnology RSS feed is available on the Scientific American website. The feed is usually updated only once or twice a month but the articles are pretty interesting and, although scientific, easier to read and understand than in other publications.  

Nanotech risks : volumetry in biomedical publications since 2000

This chart was built by searching PubMed for publications mentionning “nanotechnologies” and “risks” in their title or abstract.  The comparison with this chart hints at how much research about nanotech risks is still only a small part of research in the general nanotech field.