Tag Archives: technology

Photochemical Tissue Bonding: a light touch for battlefield injuries

File under “new theoretical tech that might end up looking vaguely like something out of Star Trek”: though they don’t provide much detail or any links to such, Gizmag reports briefly on Photochemical Tissue Bonding, which…

… can replace conventional sutures, staples and glues in repairing skin wounds, reconnecting severed peripheral nerves, blood vessels, tendons and incisions in the cornea.

And how does it work?

When treating an injury, a medic applies a dye to the wound, then briefly exposes it to green light. The dye absorbs the light, which helps it to molecularly bond proteins on the tissue surfaces. The result is what the researchers call a nanosuture, and it appears to be superior to conventional methods. “No glues, proteins or other materials are used that might stimulate an inflammatory response,” said Kochevar. “An immediate, water-tight seal is formed between the tissue surfaces leading to reduced inflammation in the near term and better scar formation in the long term.”

Find wound, smear gunge on it, beam light at it. Neat trick… though I expect that superglue and adhesive dressings will remain the cheaper option for some time to come. And neither of them need batteries, either.

I wonder what would happen if you used this on tissue that wasn’t injured, though. The body-mod crowd could do some really weird stuff with this technology once it becomes street-cheap.

Solar cells printed on paper

Chalk up another point for MIT, bounteous font of great boffinry – their latest offering to the world is a solar cell you can print out onto paper. However, I wouldn’t get too excited about it:

… the new solar cells are created by coating paper with organic semiconductor material using a process similar to an inkjet printer.

The MIT researchers used carbon-based dyes to “print” the cells, which are about 1.5 to 2 percent efficient at converting sunlight to electricity. That falls well short of the more than 40 percent efficiency record for a multi-junction solar cell, or even the recent 19 percent efficiency record for silicon ink-based solar cells. But Vladimir Bulovic, director of the Eni-MIT Solar Frontiers Research Center, told CNET any material could be used to print onto the paper solar cells if it was deposited at room temperature.

It will still be some time before solar cells can be installed with a staple gun, however, as the paper variety are still in the research phase and are years from being commercialized.

Drill, baby, drill?

Snow Crash ‘dentata’ is a (harsh) reality in South Africa

(Trigger warning: discussion of rape and aftermath)

Chalk another one up on the list of sf-nal gadgets that have graduated from printed page to reality… but at the same time deplore the need for it, because the gadget in question is something like the dentata anti-rape device featured in Neal Stephenson’s cyberpunk classic Snow Crash. The bluntly-named Rape-aXe is…

… a latex sheath, which contains razor-sharp barbs. The device is worn in her vagina like a tampon. When the attacker attempts vaginal penetration the barbs attach themselves to the penis, causing great discomfort. The device must be surgically removed, which will result in the positive identification of the attacker and subsequent arrest.

South Africa has the highest incidence of reported cases of rape in the world (according to the US Dept. of State), and the Rape-aXe’s inventor would like to see the device distributed widely around the country before the World Cup kicks off [via grinding.be]… but, as is inevitable with technologies related to such a controversial and destructive crime, opinions differ wildly as to its worth.

First remote-controlled robot heart surgery successful

A reminder (if such were needed) that technology is a double-edged sword: while remote-controlled tech can be used to kill, it can also be used to save lives, as demonstrated by the first successful remote-controlled robot heart surgery procedure, performed earlier this week in London [via SlashDot].

Granted, the surgeon was only on the other side of a wall from the patient, but proof-of-concept is proof-of-concept.

Davis asks Lethem about Dick

H+ Magazine puts out some interesting content, even if you don’t consider yourself a transhumanist: here’s Erik “Techgnosis” Davis interviewing Jonathan Lethem about science fiction legend Philip K Dick:

For people familiar with Dick‘s personal experiences, his biography and his temperament, the ironies in that are deep and bitter and complicated. You inevitably think: if he‘d been alive, he would‘ve screwed this up. He would‘ve found some way to make it impossible that he could be treated with such simple reverence, because he was so distrustful of any form of institutional authority. He had a particularly deep, bitter and twisted suspiciousness about traditional literary authority and about academia. And frankly, to some extent, it‘s academia that‘s driven his acceptance in a canon.

When I was a kid and I discovered Philip K. Dick, I felt that I‘d made this kind of soul mate contact with his work. It‘s a defining experience, and it feels like it‘s innate. For me, that experience was absolutely bound up in finding these books that were out of print. The books almost seemed like fictional artifacts. I couldn‘t believe there was such a writer. I still remember thinking his name seemed weird or that his titles seemed preposterous to me. It was like a secret reality unfolding in my life.

Of course, H+ is as H+ does, and the Singularity gets a little look-in. However, Lethem isn’t convinced that our technologies are changing us as much as we think they are:

My best guess about such matters is that each technological transformation, up to and perhaps including the Singularity, is going to work itself out vis-à-vis “the human” according to the deep principles of all media. Defined in its largest sense, as including things like cinema, theory, drugs, computing, moving type, music, etcetera, media is utterly consciousness-transforming in ways we can no longer competently examine, given how deeply they‘ve pervaded and altered the collective and individual consciousness that would be the only possible method for making that judgment. And yet -— we still feel so utterly human to ourselves, and the proof is in the anthropomorphic homeliness that pervades the ostensibly exalted “media” in return. We humanize them, shame them, colonize and debunk them with our persistent modes of sex and neurosis and community and commerce. We turn them into advertisements for ourselves, rather than opportunities for shedding ourselves. At least so far.

Well worth a read.