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DIY BioPrinter

DIY BioPrinter
We started out by messing around with an old inkjet printer that we literally saved from a sidewalk somewhere. There's already plenty of interesting things you can do with an low-end off-the-shelf inkjet printer, but they do have some limitations, which we'll get into in the next Step (or skip straight to Step 3 for how we built our own bioprinter from scratch, that you can see in the first picture above). Undressing the Printer We disassembled an abandoned HP 5150 inkjet printer for use as a bioprinter. There's a little momentary switch that senses whether the cover is open. There's also a momentary switch inside the paper handling mechanism that senses whether paper has been loaded. Once you've got your printer all undressed, and figured out how to activate the cover-closed switch - print something! Cartridges Prep Next task is prying open an ink cartridges, so you can fill them with something more interesting. Alternatively, you can cut off the lid using your favorite power tool. Related:  bioplastic, mycelium, komboechaSVT - Sciences de la vie et de la TerreBIO

Korstmos Korstmossen (of lichenen) zijn symbiosevormen van twee of meer verschillende "symbionten" of levensvormen. Één partner is altijd een schimmel, de zogenaamde "mycobiont". Die leeft samen met een "fycobiont", een blauwwier (Cyanobacterie) of een groenwier, of een combinatie van beide. Deze symbionten zijn soms zo sterk verbonden, dat de partners niet zonder elkaar kunnen overleven. Symbiose[bewerken] De schimmel, die de grove vorm van het korstmos bepaalt, omgeeft de algen. De algen hebben ook voordeel van de schimmel: De schimmel houdt water vast, dat afkomstig is uit de lucht (regen en mist), zodat de algen het kunnen gebruiken voor de fotosynthese.De schimmel scheidt zuren uit, dat helpt bij het opnemen van mineralen voor de algen.De schimmel ligt over de algen heen en biedt daarom bescherming tegen intensief zonlicht. Leefwijze[bewerken] Over de geslachtelijke voortplanting van korstmossen is weinig bekend, hoewel de meeste tot de Ascomycota behorende soorten apothecia kunnen vormen.

Microbial cellulose - Wikipedia Microbial cellulose, sometimes called bacterial cellulose, is a form of cellulose that is produced by bacteria. It is widely used in the traditional Filipino dessert Nata de coco. The earliest articles describing microbial cellulose was from 1931,[1] it was subsequently identified as cellulose in 1934.[2] Production[edit] G. xylinus extrudes glycan chains from pores into the growth medium. Differences with plant cellulose[edit] Some advantages of microbial cellulose over plant cellulose include: Finer and more intricate structureNo hemicellulose or lignin to be removedLonger fiber length: much stronger and widerCan be grown to virtually any shape and thicknessCan be produced on a variety of substratesThe formula of the media used and the strain of Acetobacter xylinum will determine the quality of the pellicleMore absorbent per unit volume Disadvantages for commercial use[edit] Some issues that have prevented large-scale commercialization so far include: Functions[edit] Uses[edit] Medical[edit]

DNA 'perfect for digital storage' 23 January 2013Last updated at 13:03 ET By Jonathan Amos Science correspondent, BBC News Nick Goldman says DNA is a robust and fantastically dense storage medium Scientists have given another eloquent demonstration of how DNA could be used to archive digital data. The UK team encoded a scholarly paper, a photo, Shakespeare's sonnets and a portion of Martin Luther King's I Have A Dream speech in artificially produced segments of the "life molecule". The information was then read back out with 100% accuracy. It is possible to store huge volumes of data in DNA for thousands of years, the researchers write in Nature magazine. They acknowledge that the costs involved in synthesizing the molecule in the lab make this type of information storage "breathtakingly expensive" at the moment, but argue that newer, faster technologies will soon make it much more affordable, especially for long-term archiving. "If you keep it cold, dry and dark - DNA lasts for a very long time.

Eastern Geek: Iron Man Inspired Repulsor Beam Blaster V1.0 Homebrew repulsor beam blaster that’s designed to produce extremely intense burst of light that can be used to repulse your archnemesis, girlfriend /wife and pet cat. WARNING: The build involves high voltage and intense light so please take the necessary precautions. And please be warned that , walking around with one of this strapped to your hand may seriously jeopardize your chances with the opposite sex. Assembly The repulsor is essentially two circuits that are switched ON/OFF using a DPST switch. The source of the DC Step-up Charging Module is the good old analog cameras. The function of this circuit is to gradually step up the 3V source up until 330V, and releasing the stored charges very rapidly when triggered. Do not short the lead of a charged capacitor, it will pop in your face, literally. The purpose of the discharge switch in the schematic is to short and safely discharge the capacitor when it’s no longer in use. Assembling The Lamp The lamp reflector is a bit tricky to source.

Wednes-DIY: Making Natural Dyes Pin It I have been wanting to experiment with natural dyes for a while now, and with all the great new fall colors that have been popping up on our website (and featured in our monochromatic trend) I decided that it was time. This is such a fun, environmentally friendly project that takes a little time, but very little cash. For today’s DIY I’ll tell you about what natural ingredients you can use to make natural dyes, and what shades of color they will yield. What I got: red cabbage, lemons, oranges, beets, yellow onions, blackberries, blueberries, spinach. For bluish/purple dyes: Blackberries and red cabbage can be used to make bluish/purple dyes. For pinkish/red dyes: Beets and blueberries can make a really lovely dusty rose color. For copper/orange dyes: I never realized what a beautiful color yellow onions can have! For yellow dyes: Orange and lemon peels can be used to make a soft pale yellow dye. For green dyes: Finally, spinach can be used to make a beautiful shade of green. Now what?

sciences de la vie et de la Terre - Symbiose chez les vertébrés : une salamandre chlorophyllienne ? Contexte officiel et objectifs : . Cette ressource s'intègre dans la partie 1-A2 du programme de Terminale S : " Diversification génétique et diversification des êtres vivants " et plus précisément : "Une diversification des êtres vivants est aussi possible sans modification des génomes : associations (dont symbioses) par exemple."Au travers cette approche documentaire illustrée, les objectifs sont : - de mettre en contact les élèves avec des sujets et des supports de recherche récents et actuels, - de porter la reflexion sur la diversification des êtres vivants en dehors des processus génétiques et en particulier grâce aux associations symbiotiques. - d'appréhender le phénomène de la symbiose au travers de son fonctionnement et de sa transmission. Les documents présentés pourront être utilisés dans le cadre d'une tâche complexe ou faire l'objet de QCM. Préalables : Quels sont les différents niveaux de cette association ? Quels sont les avantages mutuels de cette association ?

Researchers Demonstrate Reliable DNA Data Storage in Work Published in Nature DNA could someday store more than just the blueprints for life—it could also house vast collections of documents, music, or video in an impossibly compact format that lasts for thousands of years. Researchers at the European Bioinformatics Institute in Hinxton, U.K., have demonstrated a new method for reliably encoding several common computer file formats this way. As the price of sequencing and synthesizing DNA continues to drop, the researchers estimate, this biological storage medium will be competitive within the next few decades. The information storage density of DNA is at least a thousand times greater than that of existing media, but until recently the cost of DNA synthesis was too high for the technology to be anything more than a curiosity. DNA, in contrast, remains stable over time—and it’s one format that’s always likely to be useful. Others have demonstrated DNA data storage before. The encoding software also ensures some redundancy.

How to build your own USB Keylogger Cause I've searched a lot for a project like this, and I haven't find anything around the Web, I would share my experience of my personal USB Keylogger. It's not really a pure "USB" Keylogger (cause USB HID protocol is much more difficult than PS/2 protocol), but it adapt an USB Keyboard to PS/2 port, while (of course) recording the keys pressed. In this way, even if it's discovered by anybody, it should be confused with a normal PS/2 Adapter. That's the final result: It need just a few component (SOIC PIC and EEPROM can be freely ordered as a sample from ): -PIC 12F1822 (SOIC Version) -EEPROM 24XX1025 (Any 1Mb version will be ok) (SOIC Version) -2 * 4k7 Resistor 1/8 W (Or any resistor of the same value as small as you can solder in the adaptor) -Pickit 2 / 3 (For programming the pic and reading the eeprom) -An USB to PS/2 Adapter that can be opened. And, very important: -A GOOD solder and VERY GOOD soldering abilities. Let's Start. Regards, Jamby

research - ingridnijhoff Day 01 @ De Waag Open Wetlab Amsterdam with Pieter van Bohemen & Maria Boto Ordonez Maria introduced me to the pigmented bacteria Pieter and Maria already made in the Open Wetlab. Then we started to re-plate the bacteria and brewing some new liquid nutrition. Fullscreen We are testing the following strains: Micrococcus luteus (ML DSMZ) from DSMZ color: yellow Rhodococcus coprophilus (RC) from DSMZ color: pink Janthinobacterium lividum (JL) from DSMZ color: blue Xanthomonas campestris (XC) from DSMZ color: yellow Rhizobium etli (RE) from DSMZ color: brown Vogesella indoferra (VI) from Dr. Simon Park color: dark blue Arthrobacter agilis (Aag) from Dr. Simon Park color: pink Chromobacterium violaceum (CV) from Dr. The results after one day : Maria and i are searching for a way to extract the pigment from the plates and for a growing method in liquid nutrition. 23.09.14 GETTING THE CERTIFICATE !!! 26.09.14 MAKING THE INK Finding a way to make the pigments liquid. Test 2: WHAT A NIGHT!

Une vache modifiée pour produire du lait humain Des chercheurs argentins ont greffé deux gènes de femme à une vache pour que l'animal produise des enzymes spécifiques au lait maternel humain. Une avancée prometteuse qui suscite toutefois quelques réserves. Sur les photos, Rosita ISA ressemble à une jolie génisse, dotée du pelage fauve caractéristique de sa race, les «Jersey». Dans les faits, elle est une prouesse scientifique. Pour la première fois, des scientifiques ont réussi à modifier le génome d'une vache pour lui ajouter deux gènes humains contrôlant la production d'enzymes dans le lait. Cette innovation a été réalisée en Argentine, par des chercheurs de l'Institut national de technologie agricole et de l'université de San Martin. La lactoferrine existe chez tous les mammifères et permet d'améliorer l'absorption de fer pour la fabrication des globules rouges. Nicolas Mucci affirme que le lait ainsi produit changera la donne pour les bébés en les «protégeant contre des maladies et en améliorant l'absorption de fer».