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Gates Foundation funds innovative global health projects including sweat-triggered vaccine delivery using nanoparticles

The Bill & Melinda Gates Foundation announced a few days ago 78 grants of US$100,000 each for new innovative global health projects. Among those aiming at more effective vaccines, one involves nanoparticles : “Sweat-triggered vaccine delivery: Carlos Alberto Guzman of the Helmholtz Centre for Infection Research in Germany with Claus-Michael Lehr and Steffi Hansen of the Helmholtz-Institute for Pharmaceutical Research will develop nanoparticles that penetrate the skin through hair follicles and burst upon contact with human sweat to release vaccines.” (press release)

[[[ Additional link suggested by Nanocolors :

# Nano & vaccines in patents since 2000 ]]]


The nanotech gamble, by Andrew Schneider

Andrew Schneider, Senior Public Health Correspondent for AOL News, recently authored a series of articles entitled “The nanotech gamble – Bold science. Big money.Growing risks“. The key findings are summarized in this article.

[[[ Additional link suggested by Nanocolors :

# Nanotech risks in biomedical publications since 2000 ]]]

Dresden and Grenoble nanotechnology clusters strengthen their cooperation

In order to better face competition – especially from Asia – the two most important European nanoelectronics & nanotechnology clusters (Dresden in Germany and Grenoble in France) will strengthen their cooperation in the coming months.  They will set up common expert committees regarding education, R&D, industrial coordination, SMEs and environment ; the first common projects are expected to be launched by the end of 2010 (article).

Modified phytoglycogen nanoparticles to protect oil in foods from oxidation

A researcher from Purdue University sucessfully modified the surface of phytoglycogen nanoparticles to make them behave “like an emulsifier, creating phytoglycogen octenyl succinate, or PG-OS. PG-OS is thicker and denser than commonly used emulsifiers, creating a better defense from oxygen, free radical and metal ions, which cause lipid oxidation“. His work also showed that ε-polylysine, a polypeptide much smaller than the PG-OS nanoparticles, can be added to the oil droplets to aid in the protection from oxidation : “PG-OS nanoparticles with ε-polylysine significantly increased the amount of time it took for oxidation to ruin the oil droplets, in some cases doubling the shelf life of the model product“. The main applications of these findings would be in systems  in which the oxidation of lipids is a concern, especially in the food, cosmetics, or nutritional supplement industries (article).

Polymer nanoparticles to increase oil extraction yields

Russian Rusnano and British BP will use nanotechnologies to increase oil production efficiency in Russia. They will implement a project called “Brightwater” which involves the use of polymer nanoparticles to increase pressure in oil layers and thereby increase extraction yields (see Rianovosti article here).  

ANEC/BEUC inventory of products claiming to contain nanoparticles available on the EU market

ANEC (European Association for the Co-ordination of Consumer Representation in Standardisation) and BEUC (Bureau européen des unions de consommateurs) released this month on their websites an inventory of consumer products claiming to contain nanoparticles available on the EU market. This inventory shows for now examples of 151 products ; ANEC and BEUC intend to update it regularly. Here is how the products distribute by categories :

appliances : 5 kitchen appliances and 2 laundry/clothing care products

automotive : 24 maintenance products and accessories

cross cutting : 11 coatings and 20 other products

electronics and computers : 4 products

– food and drink : 9 supplements and 1 other product

– products for children : 2 products

health and fitness : 7 clothing products, 32 personal care products and 3 sporting goods

home and garden : 14 cleaning products, 10 construction materials and 7 other products.

Videos and presentations from the French nanotech debate

Here are two useful sources of information for getting a feeling of the ongoing French nanotech debate :

– videos related to the debate, including video summaries of some of the public meetings are available here ;

– slideshare versions of presentations delivered at the meetings are available here ; although very short (too short to my mind), some provide interesting elements.

[[[ Additional link suggested by Nanocolors :

# Program of the French nanotech debate ]]]