Archive for February, 2008


Thursday, February 28th, 2008
(Italian only)

An eco-compatible ink derived from food has been created by Lesepidado’s research. It has expressly conceived for throw-away printing; it saves forests and it is not harmful for foods (then atoxic). It has been developed starting from food coloring, used for cakes in bakeries, and adapting it to office inkjet printers; and it is cheaper than the traditional one.


eatable print

Thursday, February 28th, 2008
Vivyjet are food inks for inkjet printing, compatible with inkjet, thermal and piezoelectric printing technology. They can be used for printing images on edible sheets, to be applied on cakes, allowing the highest personalization. The food inks can also be used for sugar colouring.

self-powered button

Sunday, February 24th, 2008


A compact, wireless, batteryless pushbutton controller can transmit a 12-bit digital ID code to the vicinity when it is pressed. The device produces on the order of a milliJoule at 3 Volts when pushed, enabling several cycles of the ID code to be transmitted. Our device uses a reactively-matched transformer to drop the impedance of the piezo source, enabling one push to easily power low-voltage circuitry that can produce and transmit the code. This device has myriad applications: in places where a control interface is desired, but where physical wiring is impractical or too expensive, or where an embedded battery is undesireable.


see also:

TechnologyReview: Fingertip power; April 2002

changing IT

Sunday, February 24th, 2008


Computers used to be self-contained devices. If you wanted to do something with your PC, you had to buy a piece of software and install it on your hard drive. That began to change when the World Wide Web arrived in the 1990s. Suddenly, if you had a network connection and a browser, you could tap into millions of web pages that were stored not on your PC but on other people’s computers. The PC began to turn inside out—what was important wasn’t what was inside its case but what was outside it. But that was just the start.


protein memories

Thursday, February 14th, 2008

ACS publications: la703354c.html

ACS publications: la703354c.pdf

Researchers in Japan report progress toward developing a new protein-based memory device that could provide an alternative to conventional magnetic and optical storage systems. Tetsuro Majima and colleagues used a special fluorescent protein to etch or “record” a specific information pattern on a glass slide. Using a novel combination of light and chemicals, the researchers demonstrated that they could “read” the pattern and subsequently erase it at will.
see also: Recordable proteins as next-generation memory storage materials; February 12th, 2008


Tetsuro Majima, Ph.D.
The Institute of Scientific and Industrial Research
Osaka University
Osaka, Japan
Phone: 81-6-6879-8495
Fax: 81-6-6879-8499
Email: majima (at)


Wednesday, February 13th, 2008
This Directive establishes a framework for the setting of Community ecodesign requirements for energy-using products with the aim of ensuring the free movement of those products within the internal market. It contributes to sustainable development by increasing energy efficiency and the level of protection of the environment, while at the same time increasing the security of the energy supply. This Directive and the implementing measures adopted pursuant to it shall be without prejudice to Community waste management legislation and Community chemicals legislation, including Community legislation on fluorinated greenhouse gases.
see also:

sugar batteries

Wednesday, February 13th, 2008

Juicing up your cell phone or iPod may take on a whole new meaning in the future. Researchers at Saint Louis University have developed a fuel cell battery that runs on virtually any sugar source (from soft drinks to tree sap) and has the potential to operate three to four times longer on a single charge than conventional lithium ion batteries.