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Fluorescent Carbon Nanoparticles Derived from Candle Soot

Y’all know: one of these days it had to happen. When we created this blog, we almost called it something like “soot world”, indicating that what many chemists consider to be dirt, goo and soot in effect are interesting molecules, polymers or oligomers. Whatever. Cool stuff you can put in an nmr tube (anyone remember that famous NMR of ear wax?).

As I was browsing Angewandte Chemie the other day I found it: a paper called “Fluorescent Carbon Nanoparticles Derived from Candle Soot” DOI = 10.1002/ange.200701271 by Haipeng Liu, Tao Ye, and Chengde Mao. The latter being professor at Purdue University in Indiana.

This reall is the thing we were thinking of when starting this blog. Take basic carbon black, dirt, or in this case candle soot, do some magic — and boom. You get colorful stuff, even better fluorescent stuff!.

What is even more cool for the old biochemist in my brain: they separated the colorful carbon nanoparticles via electrophoresis (PAGE).

Separated fluorescent carbon nanotubes

Separated fluorescent carbon nanotubes

And since these nanoparticles are functionalized with carboxylic acids you can even attach stuff like proteins to their surface. Talking about cool, eh?

Go read the paper and be amazed ;)

Laws of Thermodynamics

Sometimes it helps to actually read a blog via its web page… found at the bottom (is it my browser or is this the easter egg?) of Carbon based curiosities:

  1. You cannot win.
  2. You cannot break even.
  3. You cannot stop playing the game.

Written by whom? I know there are other interpretations/variants that are equally funny, any of our readers care to share?

Dress styles

I know, this is not really a post belonging onto the scientific blogosphere, or is it?

You may be familiar with certain dress styles across disciplines — looking back at my times at university we always used to joke about the “law” types or the “economics” students — always dressed to kill, or rather with collar shirt, not necessarily tie and suit, but always neat, stylish, serious.

Well then there were the engineers, where you would have many shirt guys as well, but also the more “outdoor,” practical types. Women in engineering? Not at my uni.

And then the natural scientists. Starting with physics: only computer science and math majors would come close in disregard of clothing styles, not? How about biologists? Better, much more diverse, and women. Chemists? Usually, due to certain lab restrictions, nothing too fancy, acid stains in jeans and T-shirts. Well, lab coats in some cases, anything goes. Biochemists are, in my experience, more dressy than chemists, usually a bit more “focused” as well in their minds, but maybe that is just because during my times we still had the old diploma chemists, who didn’t have that clear guideline in their studies so anything was OK, whereas the biochem majors all were in a bachelor/master program where pretty much everything was set — including the visits to certain brain washing programs… elite this, elite that and such. But this seems to be the case everywhere in Germany these days?

Good to know a letter to nature just recently questioned the training of chemists for academia only… missing many soft skills and broader abilities which were necessary for industry work. But that’s a post for another day.

And back to chemists dressing up: ever walked into a big player in industrial chemistry? Ever seen chemists walk around in a lab coat with shirt/tie underneath? Drastic changes for anyone, especially those of us “anything goes” chemists. But not to despair, this seems to hit anyone in big business, not?

Clothes make people.

Do they?

Good science presentations?

As many of you out there may have noticed, apple has just published a new version of its PowerPoint-killer called “Keynote.”

Apple Keynote: beautiful presentations

And even if you don’t like to use a Mac, you probably still have to admit that it does produce beautiful presentations, not? Kutti over at jungfreudlich will probably agree the loudest (and still owes us an upload of his latest presentation), but is this kind of eye-candy necessary for scientific presentations? Do we need eye-candy, or clear presentations? Do we need numbers and facts reduced to upper-management-level-key-performance-indicators? Simplicity versus complexity? Aesthetics versus crude “getting the job done”? buy viagra buy propecia food nutrition free pets weight loss buy viagra

There is enough talk on the web and the blogosphere about “death by powerpoint”, but many hints for doing “good presentations” strive for reducing complexity — something scientists doing presentations don’t really like. Or try to hide by creating animations or skipping slides… you probably all have seen those species out there.

Others are trying completely new things, like mindmap-based slides for presentations. Any experiences with that?

What are your favorite tools? What is your “philosophy”?

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