Materials researchers at the University of Illinois, Urbana-Champaign have developed a highly conductive silver ink. In this video, Analisa Russo, a graduate student in the research group of Professor Jennifer Lewis shows exactly how to make this amazing ink, which could be used for a wide variety of hobby projects and in advanced electronics hardware.
Views: 216719 CEN Online
Jacques Dubochet, Joachim Frank, and Richard Henderson have claimed the 2017 Nobel Prize in Chemistry for their development of cryo-electron microscopy. ↓↓More info and references below↓↓ This year’s winners surprised many people and stirred up the perennial “is this really chemistry?” debate. But the Nobel committee (and the president of the American Chemical Society, Allison Campbell) believes that cryo-EM’s development is firmly entrenched in the central science. Check out our explainer behind the work that’s enabling researchers to image large biomolecules with atomic precision, ushering in a new era of biochemistry. And there was at least one person whom this pick did not surprise. Shout out to Gurunath Ramanathan, a viewer of C&EN’s Nobel Prediction Webinar who submitted this guess: “Cryoelectron microscopy is changing the way in biology. My bet is on analytical chemistry.” Watch the full webinar here: https://www.youtube.com/watch?v=GSGms9DQn7w And be sure to check out these references for more on cryo-EM. Cryo-electron microscopy innovators win 2017 Nobel Prize in Chemistry | C&EN https://cen.acs.org/articles/95/web/2017/10/Cryo-electron-microscopy-innovators-win-2017-Nobel-Prize-in-Chemistry.html The first herpes capsid at atomic resolution | C&EN https://cen.acs.org/articles/95/i27/first-herpes-capsid-atomic-resolution.html Uncovering The Spliceosome’s Secrets | C&EN https://cen.acs.org/articles/93/i39/Uncovering-Spliceosomes-Secrets.html New close-up views of the nuclear pore complex | C&EN https://cen.acs.org/articles/94/i16/New-closeviews-nuclear-pore-complex.html Cryo-electron tomography provides first view of a cell’s nucleus in its natural, undisturbed environment | C&EN https://cen.acs.org/articles/94/i9/Cryo-electron-tomography-provides-first.html Bold, Probably Incorrect Predictions of the Future of X-ray Diffraction | C&EN http://cen.xraycrystals.org/essay-on-the-future-of-crystallography.html The Nobel Prize in Chemistry 2017 | Nobelprize.org https://www.nobelprize.org/nobel_prizes/chemistry/laureates/2017/ Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly news magazine of the American Chemical Society. Contact us at [email protected]!
Views: 55997 CEN Online
The latest nanomaterials are coming from a seemingly unlikely source--the forest. C&EN Senior Correspondent Mitch Jacoby takes you inside a nanocellulose plant in Madison, Wis., where scientists are extracting these materials from wood pulp. Like C&EN? Want more chemistry video goodness? Subscribe to our YouTube channel: https://www.youtube.com/user/CENonline Subscribe to C&EN to watch science videos with a focus on chemistry, and to hear from the researchers behind it all. -- Looking for C&EN elsewhere on the internet? Homepage: http://cen.acs.org Facebook: http://www.facebook.com/CENews Twitter: http://www.twitter.com/cenmag Tumblr: http://cenwatchglass.tumblr.com Tumblr: http://cenchempics.tumblr.com
Views: 12350 CEN Online
Take a crack at our truffle trivia challenge: http://cen.acs.org/articles/93/i36/Makes-Truffles-Enticing-Foodies-Unwittingly.html#truffle-trivia ↓↓Full description and references below↓↓ Although you probably haven’t dropped a cool $60 grand for a truffle, you may have wondered why some people are willing to do so. In this episode, Sarah Everts shows how chemistry fuels the fuss over the fungus…and reveals the shady side of truffle oil. If this episode leaves you wanting more, check out these great resources. What Makes Truffles So Enticing? http://cen.acs.org/articles/93/i36/Makes-Truffles-Enticing-Foodies-Unwittingly.html Truffles: The Most Expensive Food In the World | CBS News http://www.cbsnews.com/news/truffles-the-most-expensive-food-in-the-world/ The Dark Side of the Truffle Trade | The Atlantic http://www.theatlantic.com/international/archive/2014/01/the-dark-side-of-the-truffle-trade/283073/ Want even more Speaking of Chemistry? Like us on facebook: https://www.facebook.com/SpeakingOfChem Or drop us a line at [email protected] Speaking of Chemistry is brought to you by Chemical & Engineering News, the news magazine of the American Chemical Society.
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More at http://cenm.ag/postd. Ph.D. chemists who do more than one postdoctoral stint after finishing their degree--whether for personal reasons or because of the economy-- often face harsh realities in trying to find permanent positions. C&EN Senior Editor Linda Wang spoke to postdocs and experts about this issue at the American Chemical Society National Meeting in New Orleans.
Views: 10704 CEN Online
Frances Arnold, George Smith, and Gregory Winter won the 2018 Nobel Prize in Chemistry. Watch our latest episode to learn why. ↓↓More information below↓↓ This trio took home chemistry’s top honor for developing techniques, directed evolution and phage display, that identify useful new enzymes, antibodies, and more. We know a lot of chemistry fans were rooting for lithium-ion-battery guru John Goodenough to be tapped for the 2018 prize, but stay with us: We are excited about the impactful chemistry involved this year, and we’re about to break it down for you. Let us know what you think about the award going to directed evolution and phage display in the comments. Correction: At about 2:30 in the video, we incorrectly refer to Nobel Laureate Gregory Winter as George Winter. Sources: Celia Arnaud’s stunning news story on the prize for C&EN: Frances H. Arnold, George P. Smith, and Gregory P. Winter share 2018 Nobel Prize in Chemistry | C&EN https://cen.acs.org/biological-chemistry/Frances-H-Arnold-George-P-Smith-and-Gregory-P-Winter-share-2018-Nobel-Prize-in-Chemistry/96/web/2018/10 Frances Arnold’s work: Tuning the activity of an enzyme for unusual environments: sequential random mutagenesis of subtilisin E for catalysis in dimethylformamide | Proc. Natl. Acad. Sci. USA http://doi.org/10.1073/pnas.90.12.5618 George P. Smith’s work: Filamentous fusion phage: novel expression vectors that display cloned antigens on the virion surface | Science http://doi.org/10.1126/science.4001944 Greg Winter’s work: Phage antibodies: filamentous phage displaying antibody variable domains | Nature http://doi.org/10.1038/348552a0 Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society. Contact us at [email protected]!
Views: 10186 CEN Online
Kidney stones can be excruciatingly painful, and half a million people in the U.S. end up in the emergency room because of them. In this episode of Speaking of Chemistry, guest host Linda Wang explores how kidney stones form and shares some of the most recent research in this area. She even offers tips on how to prevent them. Subscribe! http://bit.ly/CENOnline Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly magazine of the American Chemical Society. Contact us at [email protected]! Sources: Zinc May Help Drive Kidney Stone Formation Issue Date: June 8, 2015 http://cen.acs.org/articles/93/i23/Zinc-Help-Drive-Kidney-Stone.html?type=paidArticleContent
Views: 20582 CEN Online
Charli Dvoracek, a graduate student in Peter Searson's lab at the Johns Hopkins Institute for NanoBioTechnology (INBT) shows us how to make Cadmium Selenide semiconductor nanocrystals, which are better known as quantum dots. These nanoparticles could be used in a wide range of products from cancer tests to solar cells.
Views: 63725 CEN Online
It’s a major bummer when bugs destroy your cannabis plants, especially if your business is growing legal marijuana. https://cen.acs.org/business/agriculture/Nurturing-cannabis/96/i21 ↓↓More info and references below↓↓ Eddie Funtanellas and his team at Phantom Farms in Oregon use natural methods to keep pests away from their valuable crop. Cleaning up cannabis | C&EN https://cen.acs.org/articles/95/i45/Cleaning-cannabis.html Making Legal Marijuana Safe | C&EN https://cen.acs.org/articles/93/i16/Making-Legal-Marijuana-Safe.html
Views: 4603 CEN Online
Your toothpaste and face scrub probably get their scrubbing power from tiny plastic beads contained within. In Episode 10 of Speaking of Chemistry, Lauren K. Wolf talks about these polyethylene “microbeads” and why environmental scientists and dentists alike are nervous about them getting into lakes, rivers, and your gums. Like C&EN? Want more chemistry video goodness? Subscribe! Subscribe to C&EN to watch science videos with a focus on chemistry, and to hear from the researchers behind it all. Looking for C&EN elsewhere on the internet? Homepage: http://cen.acs.org Facebook: http://www.facebook.com/CENews Twitter: http://www.twitter.com/cenmag Tumblr: http://cenwatchglass.tumblr.com
Views: 7341 CEN Online
How can you turn bright-red tomato juice into a rainbow of color? It just takes one extra ingredient -- and some chemistry chops. Just remember, don’t drink the rainbow. For more of the science, check out the throwback Journal of Chemical Education paper here: http://pubs.acs.org/doi/abs/10.1021/ed063p1092 Chem-lapsed is a series of chemistry-themed time-lapses created by Dorea Reeser for C&EN.
Views: 7671 CEN Online
C&EN's Jeff Huber and Sophia Cai visited chemistry professor Matt Hartings at American University to learn about--and taste--powdered alcohol. To learn more, go to http://cenm.ag/palco. Like C&EN? Want more chemistry video goodness? Subscribe to our YouTube channel: https://www.youtube.com/user/CENonline Subscribe to C&EN to watch science videos with a focus on chemistry, and to hear from the researchers behind it all. -- Looking for C&EN elsewhere on the internet? Homepage: http://cen.acs.org Facebook: http://www.facebook.com/CENews Twitter: http://www.twitter.com/cenmag Tumblr: http://cenwatchglass.tumblr.com Tumblr: http://cenchempics.tumblr.com
Views: 20013 CEN Online
Find out how yeast and brewers work together to beef up a beer's alcohol content. To learn more about Avery and Renegade, visit their websites: http://averybrewing.com/age-verification/?referrer=/ http://renegadebrewing.com/ Photo credits Yeast micrograph: J. Cell. Biol. 192: 615-629 http://www.cellimagelibrary.org/images/13901 Mash tun interior: Erik Charlton https://www.flickr.com/photos/erikcharlton/2812431871/in/photolist-5hws1F-4ZJgce
Views: 6739 CEN Online
Summertime means slathering on sunscreen, but are all the new sky-high SPF labels that much better at protecting you? Chemical & Engineering News Senior Editor Carmen Drahl and Associate Editor Sophia Cai explain the chemistry behind SPF, so you don't get burned. More reading: J. Chem. Educ., 1998, 75 (6), p 757 DOI: 10.1021/ed075p757 http://pubs.acs.org/doi/abs/10.1021/ed075p757?journalCode=jceda8 Sunscreen-The Burning Facts-EPA http://www.epa.gov/sunwise/doc/sunscreen.pdf What's That Stuff? Sunscreens http://pubs.acs.org/cen/whatstuff/stuff/8025sunscreens.html Sunscreen Delays ($) http://cen.acs.org/articles/92/i19/Sunscreen-Delays.html Lawmakers Want FDA To Act On Sunscreens ($) http://cen.acs.org/articles/92/i22/Lawmakers-Want-FDA-Act-Sunscreens.html Want more chemistry video goodness? Subscribe! http://bit.ly/CENOnline Looking for C&EN elsewhere on the internet? Homepage: http://cen.acs.org Facebook: http://www.facebook.com/CENews Twitter: http://www.twitter.com/cenmag Tumblr: http://cenwatchglass.tumblr.com Tumblr: http://cenchempics.tumblr.com
Views: 35381 CEN Online
Last fall, MIT researchers debuted two scientific cocktail toppers - a cocktail boat and floral pipette - that they developed in collaboration with celebrity chef José Andrés. To find out how close these two garnishes are to a bar or restaurant near you, C&EN went inside Andrés's headquarters, ThinkFoodGroup. The garnishes both rely on a special property of liquids, surface tension, to work. The edible prototypes in this video are made with silicone molds fashioned with help from a 3D printer. The garnishes are not available to the public yet, but stay tuned. For more details, see http://cenm.ag/wow and the paper "Biomimicry and the Culinary Arts" by Burton, et al. 2013 at: http://iopscience.iop.org/1748-3190/8/4/044003/article
Views: 19728 CEN Online
It’s common practice to recycle paper, glass, and many plastics—in fact, about 35% of the trash produced in the U.S. is recycled or composted. So why can’t we recycle what’s commonly referred to as Styrofoam? (It’s actually expanded polystyrene, or EPS—a bit different!) In episode 19 of Speaking of Chemistry, host Sophia Cai explains that EPS actually can be recycled, but the prohibitive costs have prompted cities to ban the pesky product instead. If this episode leaves you wanting to know more about recycling EPS, read the sources below. Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly magazine of the American Chemical Society. Contact us at [email protected]! Subscribe to C&EN’s YouTube channel! Fuming Over Foam http://cen.acs.org/articles/93/i12/Fuming-Over-Foam.html Volume 93 Issue 12 | pp. 23-25 Issue Date: March 23, 2015 New York City Bans Expanded Polystyrene Food Containers, Opens Market To Alternatives http://cen.acs.org/articles/93/web/2015/01/New-York-City-Bans-Expanded.html C&EN Latest News Web Date: January 12, 2015
Views: 23124 CEN Online
C&EN invites viewers on a virtual tour of the New Orleans Pharmacy Museum, located in the heart of the French Quarter. This 19th century apothecary shop is filled from floor to ceiling with bottles and jars containing crude drugs, herbal medicines, and voodoo potions. Tour guide Matthew Chandelier explains a few of the things chemists will find in this treasure chest of ancient medicine.
Views: 7137 CEN Online
On what would be Robert Burns Woodward's 100th birthday, C&EN looks back at his legacy using footage of the man himself. To read more, visit http://cenm.ag/woodward100. Watch the original video clips here: http://bit.ly/RBWoodward Speical thanks to the Hoye Group & Addison Ault for conserving and sharing this footage.
Views: 7726 CEN Online
Subscribe! http://bit.ly/CENOnline Insects may not be the most charismatic creatures on the planet, but what they lack in cuddliness, they make up for with chemical ingenuity. In Episode 20 of Speaking of Chemistry, Matt Davenport looks at three of the craziest six-legged chemists out there. If this episode leaves you wanting more, check out the sources below. Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly magazine of the American Chemical Society. Contact us at [email protected]! For more of C&EN’s critter chemistry videos, visit https://www.youtube.com/playlist?list=PLM2CTqSTy7cRaqZg4_UJ7fXXIFyPaZipQ Sources: Beetle’s Explosive Spray Mechanism Revealed By X-Ray Imaging Volume 93 Issue 18 | p. 7 Issue Date: May 4, 2015 http://cen.acs.org/articles/93/i18/Beetles-Explosive-Spray-Mechanism-Revealed.html. To Outwit Plant Defenses, Hungry Caterpillars Turn Chemists Volume 92 Issue 40 | p. 10 Issue Date: October 6, 2014 http://cen.acs.org/articles/92/i40/Outwit-Plant-Defenses-Hungry-Caterpillars.html An Ant’s Acid Antidote Volume 92 Issue 9 | pp. 44-45 Issue Date: March 3, 2014 http://cen.acs.org/articles/92/i9/Ants-Acid-Antidote.html Ant Battle Yields Ionic Liquid Volume 92 Issue 30 | p. 32 Issue Date: July 28, 2014 http://cen.acs.org/articles/92/i30/Ant-Battle-Yields-Ionic-Liquid.html For more critter chemistry stories, visit: http://cen.acs.org/collections/critchem.html Beetle footage courtesy of Melanie Gonick/MIT: https://www.youtube.com/watch?v=TgqF-ND2XcY Ant footage from Edward G. LeBrun, Nathan T. Jones, Lawrence E. Gilbert, Science 2014, DOI: 10.1126/science.1245833 http://www.sciencemag.org/content/343/6174/1014/suppl/DC1 If you’re wondering where that 10 quintillion insect estimate came from, visit the Entomological Society of America: http://www.entsoc.org/resources/faq Lastly, Prince did not name the Rasberry crazy ants. They’re named for Tom Rasberry, the exterminator who identified the invasive pests and the threat they pose. Check out this video to learn more about Tom and the crazy ants: https://www.youtube.com/watch?v=NgpCXGsC6PU Craving even more juicy bug coverage? Here are the scientific publications behind C&EN’s original stories. Bombardier Beetle Spray: Eric M. Arndt, Wendy Moore, Wah-Keat Lee, Christine Ortiz, Science 2015, DOI: 10.1126/science.1261166 http://www.sciencemag.org/content/348/6234/563 Fall Armyworm Stereochemistry: Felipe C.Wouters et al., Angew. Chem. Int. Ed. 2014 DOI: 10.1002/anie.201406643 http://onlinelibrary.wiley.com/doi/10.1002/anie.201406643/abstract Tawny Crazy Ant-idote: Edward G. LeBrun, Nathan T. Jones, Lawrence E. Gilbert, Science 2014, DOI: 10.1126/science.1245833 http://www.sciencemag.org/content/343/6174/1014/suppl/DC1 Li Chen et al., Angew. Chem. Int. Ed. 2014, DOI: 10.1002/anie.201404402 http://onlinelibrary.wiley.com/doi/10.1002/anie.201404402/abstract
Views: 13406 CEN Online
Revolutionary: Lawrence Principe, professor of organic chemistry and the history of science at Johns Hopkins University, studies late-medieval and early-modern alchemy to answer questions about how modern-day chemistry developed. Filmed and edited by Kirk Zamieroski for C&EN
Views: 8390 CEN Online
Strawberries are sweet, juicy, and delightful. Unfortunately, they’re also attractive bait for a litany of pests and diseases. In 2016, an expiring federal pesticide exemption could mean the end of strawberries as we know them. In this Speaking of Chemistry video, Sophia Cai explains the problem and some possible solutions. Subscribe! http://bit.ly/CENOnline If this episode leaves you itching for more, check out the sources below. Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly magazine of the American Chemical Society. Contact us at [email protected]! Sources: Strawberries In Peril Because Of Fumigant Phaseout Volume 93 Issue 23 | pp. 18-19 Issue Date: June 8, 2015 http://cen.acs.org/articles/93/i23/Strawberries-Peril-Fumigant-Phaseout.html Alternatives to Methyl Bromide: A Florida Perspective APS 2005, DOI: 10.1094/APSnetFeature/2005-0605 http://www.apsnet.org/publications/apsnetfeatures/Pages/MethylAlternatives.aspx A Pest Management Strategic Plan for Strawberry Production in California The California Strawberry Commission (CSC) & The California Minor Crops Council (CMCC) http://www.ipmcenters.org/pmsp/pdf/CASTRAWBERRY.PDF University of California Plant Breeding Center http://plantbreeding.ucdavis.edu/ Tomato Diseases On The Rise In Absence Of Methyl Bromide Posted By: Paul Rusnak, Growing Produce | February 1, 2014 http://www.growingproduce.com/vegetables/tomato-diseases-on-the-rise-in-absence-of-methyl-bromide/ Soil Fumigants Website Chloropicrin Manufacturers' Task Force, Methyl Bromide Industry Panel, and Metam Task Force http://www.fumeinfo.org/
Views: 4101 CEN Online
This solar-cell device mimics the ability of a leaf to convert sunlight into usable energy. It's the brainchild of a team led by MIT's Daniel G. Nocera, working in conjunction with researchers at SunCatalytix, a company Nocera founded. The device is based on two water-splitting photocatalysts developed by Nocera's group. Simply dropping the solar cell in water and exposing it to light, O2 bubbles begin streaming off the side coated with a cobalt borate catalyst, and H2 bubbles begin streaming off the other side coated by a nickel-molybdenum-zinc alloy catalyst. If placed in a vessel with a barrier, the H2 and O2 could be collected separately and stored, and then later be used to power a fuel cell. Nocera envisions this type of simple, low-cost solar cell, once optimized, could be useful to power individual homes in developing regions around the world. More information here http://cenm.ag/electro
Views: 29124 CEN Online
Subscribe! http://bit.ly/CENOnline If you’re looking for a new ‘do, you might be considering bleaching your flowing locks. But adding hydrogen peroxide to your head can actually do a lot of damage. C&EN Associate Editor Matt Davenport breaks down why going platinum blonde could be bad for your "head suit." Looking for more information on hair chemistry? Check out these articles. Surface Chemistry Of Becoming A Blonde http://cen.acs.org/articles/92/i38/Surface-Chemistry-Becoming-Blonde.html Color Challenge http://cen.acs.org/articles/86/i6/Color-Challenge.html Hair Care Ingredients Makers Get Creative http://cen.acs.org/articles/91/i19/Hair-Care-Ingredient-Makers-Creative.html L’Oréal Hair Science http://www.hair-science.com/_int/_en/index.aspx Colour To Dye For http://mosaicscience.com/story/hair-dye Melanin micrograph courtesy of Int. J. Trichology: http://openi.nlm.nih.gov/detailedresult.php?img=2938584_IJT-1-83-g002&req=4 Hair lipid schematic adapted from Langmuir: http://pubs.acs.org/doi/abs/10.1021/la500461y?source=cen ----- Subscribe to C&EN to watch science videos with a focus on chemistry, and to hear from the researchers behind it all. Looking for C&EN elsewhere on the internet? Homepage: http://cen.acs.org Facebook: http://www.facebook.com/CENews Twitter: http://www.twitter.com/cenmag
Views: 7320 CEN Online
Researchers at the University of Maryland and the Army Research Lab are building lithium-ion batteries that won’t explode when damaged. ↓↓More info and references below↓↓ The lithium-ion batteries in our electronic devices use organic electrolytes to store charge. The problem is that these electrolytes are flammable. Li-ion batteries that replace those electrolytes with water-based versions remove the risk of explosions but don’t perform as well. In this video University of Maryland postdoc Chongyin Yang demonstrates how his team uses an anode with a special coating to make aqueous batteries that can reach 4.0 V—the voltage level of today’s commercial Li-ion batteries. Charged up about batteries? Check out these great resources: Periodic graphics: Why Li-ion batteries catch fire | C&EN https://cen.acs.org/articles/94/i45/Periodic-graphics-Li-ion-batteries.html Flexible batteries get safe aqueous electrolytes | C&EN https://cen.acs.org/articles/95/web/2017/08/Flexible-batteries-safe-aqueous-electrolytes.html “Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries | Science http://science.sciencemag.org/content/350/6263/938/F5 Aqueous Li-Ion Batteries | Joule http://www.cell.com/joule/abstract/S2542-4351(17)30034-X
Views: 5031 CEN Online
How is the shiny tinsel that decorates many Christmas trees made? Today it's mostly made of plastic. But did you know tinsel used to contain chemical elements like lead, aluminum, or copper? Find out all about tinsel's chemistry history in this very special holiday episode of Speaking of Chemistry. Special thanks to the following for photos: Materialscientist/Wikimedia commons http://en.wikipedia.org/wiki/Aluminium#mediaviewer/File:Aluminium-4.jpg http://en.wikipedia.org/wiki/Copper#mediaviewer/File:NatCopper.jpg AlchemistHP/Wikimedia commons http://en.wikipedia.org/wiki/Lead#mediaviewer/File:Lead_electrolytic_and_1cm3_cube.jpg Brite Star Manufacturing Co. (tinsel product photos) Darron Fick/Flickr https://www.flickr.com/photos/thunderpants/173076522/ Jüppsche/Wikimedia commons http://commons.wikimedia.org/wiki/File:Lametta_-_Christmas_decorations.jpg Rene Schwietzke/Flickr https://www.flickr.com/photos/rene-germany/2126809489/ simpleinsomnia/Flickr https://www.flickr.com/photos/simpleinsomnia/9698410745 https://www.flickr.com/photos/simpleinsomnia/15240693388 snapshotsofthepast/Flickr https://www.flickr.com/photos/oldeyankee/8128048724 https://www.flickr.com/photos/oldeyankee/8128022305/ Carmen Drahl Susan Waggoner Like C&EN? Want more chemistry video goodness? Subscribe to our YouTube channel: https://www.youtube.com/user/CENonline Subscribe to C&EN to watch science videos with a focus on chemistry, and to hear from the researchers behind it all. -- Looking for C&EN elsewhere on the internet? Homepage: http://cen.acs.org Facebook: http://www.facebook.com/CENews Twitter: http://www.twitter.com/cenmag
Views: 8608 CEN Online
Metal Organic Frameworks, or MOFs, are crystalline materials with extremely high surface areas. They can be used to store hydrogen and methane for fuel cell cars, or they could be used to sequester the carbon dioxide output of factories and power plants. In this video, Caitlin Stevens gives a tour of the Yaghi lab at UCLA. She explains how MOFs are made and tested.
Views: 5872 CEN Online
It’s a simple claim made on thousands of personal care products for adults and kids: hypoallergenic. But what does that actually mean? Turns out, it can mean whatever manufacturers want it to mean, and that can leave you feeling itchy. Speaking of Chemistry is back this week with Sophia Cai explaining why “hypoallergenic” isn’t really a thing. References: Medical Professionals Call For Regulation Of Claims That Cosmetics Are Hypoallergenic http://cen.acs.org/articles/92/i50/Medical-Professional-Call-Regulation-Claims.html Looking for C&EN elsewhere on the internet? Homepage: http://cen.acs.org Facebook: http://www.facebook.com/CENews Twitter: http://www.twitter.com/cenmag
Views: 5645 CEN Online
What’s the difference between fluorescence and bioluminescence? We illuminate the biochemical distinctions. ↓↓More info and references below↓↓ Special thanks to everyone who shared their amazing glowing animal footage with us. Be sure to check out Jelly Club’s YouTube page for more stunning jelly videos: https://www.youtube.com/user/JellyClubAdmin To learn more about Marc Zimmer’s research at Connecticut College and to find more great info and images involving GFP, visit his website: http://www.conncoll.edu/ccacad/zimmer/MZ-8/ To see more luminescent creatures photographed by NOAA, visit their Ocean Explorer webpage: http://oceanexplorer.noaa.gov/explorations/09bioluminescence/welcome.html And don’t forget to watch the Wellcome Trust’s video to learn all about those wild blue nematode worms: https://www.youtube.com/watch?v=pAw5rjgHWc0 Even more brilliant references: First naturally-fluorescing frog found in Argentina | C&EN http://cen.acs.org/articles/95/i12/First-naturally-fluorescing-frog-found.html Glowing mushroom’s mechanism unmasked | C&EN http://cen.acs.org/articles/95/i18/Glowing-mushroomsmechanism-unmasked.html Novel roles for GFP | C&EN http://cen.acs.org/articles/87/i18/Novel-Roles-GFP.html Spider Seduction Requires UV Light | C&EN http://cen.acs.org/articles/85/i5/Spider-Seduction-Requires-UV-Light.html Naturally occurring fluorescence in frogs | Proc. Natl. Acad. Sci. USA http://www.pnas.org/content/114/14/3672 Mechanism and color modulation of fungal bioluminescence | Sci. Adv. http://advances.sciencemag.org/content/3/4/e1602847 Live cell imaging of PC3 prostate cancer cells | Figshare https://figshare.com/articles/PC3_GFPEN2_sample2_cell_fusion_mp4/4057197 Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly news magazine of the American Chemical Society. Connect with us at www.facebook.com/SpeakingOfChem and/or at [email protected]!
Views: 4848 CEN Online
Researchers have developed a hydrogel support matrix that enables 3-D printers to create structures from materials including polymers and living cells like never before. Watch this video to see it in action. Check out the UF team's paper in Science Advances: http://advances.sciencemag.org/content/1/8/e1500655
Views: 5213 CEN Online
Sravanti Kusuma, a graduate student in Bioengineering at Johns Hopkins University, shows some induced pluripotent stem cells and talks about handling them. Kusuma works for Professor Sharon Gerecht, Chemical and Biomolecular Engineering, Whiting School of Engineering, and affiliated with Johns Hopkins Institute for NanoBioTechnology. The Gerecht lab studies stem cells with the long-term goal of making blood vessels from stem cells, potentially for nourishing transplanted organs. Filmed and edited by Kirk Zamieroski
Views: 6364 CEN Online
Watch this guided tour of a new type of focused ion beam built for nanoscale imaging and machining. Learn more at http://cenm.ag/liscope Jabez McClelland and his team developed the instrument at the Center for Nanoscale Science & Technology at NIST. You can read more about it in their paper in the journal, Ultramicroscopy: http://www.sciencedirect.com/science/article/pii/S0304399114000679 Want to learn more about how Brookhaven National Lab created that 3-D image of a battery anode? Check out this paper from Jun Wang's group in Angewandte Chemie: http://onlinelibrary.wiley.com/doi/10.1002/anie.201310402/abstract
Views: 2435 CEN Online
Every beer brewer is locked into a high-maintenance relationship with yeast: those finicky, alcohol-creating microorganisms. In Episode 17 of Speaking of Chemistry, brewmaster Max Filter from Renegade Brewing Company fills us in on how he keeps his fermenting fungi happy. If this episode leaves you wanting more, read the sources below. Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly magazine of the American Chemical Society. Contact us at [email protected]! Subscribe to C&EN’s YouTube channel! Tapping Yeast’s Genome http://cenm.ag/brewing Volume 93 Issue 16 | pp. 8-13 Issue Date: April 20, 2015 Strange Brews: The Genes of Craft Beers http://www.nytimes.com/2014/05/27/science/craft-beer-at-the-genetic-level.html?_r=0 New York Times Web Date: May 26, 2014 What’s That Stuff: Beer http://cen.acs.org/articles/84/i14/Beer.html Volume 84 Issue 14 | p. 39 Issue Date: April 3, 2006
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For more information, go to http://cenm.ag/membrane. Even though oil and water don't mix, when they do come together, as in oil spills, they're difficult to separate. Researchers at the University of Michigan and the Air Force Lab have now developed a membrane that separates the substances with ease, via gravity filtration. In this clip, watch the membrane in action and learn about the materials it's made from.
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To learn more about this material, go to http://cenm.ag/hydrogels. Nature can do a lot of spectacular things. But some researchers are designing materials that go beyond what Mother Earth is capable of. These substances are called metamaterials. Now, scientists from Cornell University have designed a new metamaterial called a DNA hydrogel that can collapse into a puddlelike state but then retake its original shape when submerged in water. Like the robot assassin T-1000 in "Terminator 2," the researchers think their new gel might one day flow through a narrow opening and take shape again on the other side. In the meantime, however, they're eyeing the material for use in drug delivery and electrical circuits.
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A growing band of scientists and tech giants are turning to quantum computers to solve some of chemistry’s currently intractable problems. ↓↓More info and references below↓↓ In this episode of Speaking of Chemistry, we look at how chemists and physicists want to use quantum computers, a new kind of machine that they hope can simulate and even predict molecules valuable for catalysis, materials science, and drug discovery. Read more: Chemistry is quantum computing’s killer app | C&EN https://cen.acs.org/articles/95/i43/Chemistry-quantum-computings-killer-app.html Quantum computing goes beyond hydrogen and helium | C&EN https://cen.acs.org/articles/95/i37/Quantum-computing-goes-beyond-hydrogen-and-helium.html Digitalization comes to the materials industry | C&EN https://cen.acs.org/articles/95/i39/Digitalization-comes-materials-industry.html Hardware-efficient variational quantum eigensolver for small molecules and quantum magnets | Nature https://www.nature.com/articles/nature23879 Speaking of Chemistry is a production of Chemical & Engineering News (C&EN), the weekly news magazine of the American Chemical Society. Contact us at [email protected]!
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More at http://cenm.ag/unemployed. New unemployment numbers for chemists released by the American Chemical Society in March 2012 are the worst in 40 years, with new graduates and postdocs hit hardest. At the ACS National Meeting in San Diego, young chemists respond to the news.
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For more on kitchen chemistry classes, go to http://cenm.ag/cook. You're a chemist any time you step foot into the kitchen, says Matthew Hartings, a professor at American University, in Washington, D.C. In this clip, Hartings makes macaroni and cheese and talks about his class, "The Chemistry of Cooking," which is meant for undergraduates not majoring in science. He teaches the course with the goal of making chemistry more relevant and interesting to non-science majors.
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C&EN caught up with University of Michigan’s Anish Tuteja at #ACSDC to learn how his team turned hundreds of polymers icephobic. ↓↓More info and references below↓↓ The secret to the Tuteja team’s ice-shedding materials isn’t as chemical as you might think. The researchers found that by focusing on mechanical properties they were able to design a library of icephobic polymers. Of course, the mechanical properties of these polymers are inextricably linked to their underlying chemistry. Read all of C&EN’s #ACSDC coverage here: http://acsmeetings.cenmag.org/ Love surfaces that aren’t clingy? Read about the approach mastered by Harvard University’s Joanna Aizenberg in our recent feature story. How to create materials that mimic Mother Nature | C&EN http://cen.acs.org/articles/95/i33/How-to-create-materials-that-mimic-Mother-Nature.html Special thanks to Gabriel Cherry, Robert Coelius, and the University of Michigan press office for sharing footage of Tuteja’s lab and materials. Check out their video about the icephobic materials here: https://www.youtube.com/watch?v=461jMzge3hU References: Designing durable icephobic surfaces | Sci. Adv. http://advances.sciencemag.org/content/2/3/e1501496 Frost formation and ice adhesion on superhydrophobic surfaces | Appl. Phys. Lett. http://aip.scitation.org/doi/abs/10.1063/1.3524513?journalCode=apl
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For more about this new material, go to http://cenm.ag/vapor. Harnessing heat, light, wind, and other natural stimuli to generate electrical power is a major goal in science. Now, researchers at MIT have developed a material that can generate power from an ever-present substance in the environment: water vapor. In this clip, watch sheets of the team's polymer composite tumble around a moist surface and learn how the new material's continuous motion might someday charge small devices without help from an electrical plug.
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Celebrate Thanksgiving with ACS Chemoji for FREE, now availbable for your iPhone or Android device: http://swyftmedia.com/apps/app.php?app=chemoji ↓↓ Full description and references below ↓↓ Every Thanksgiving, we stop to reflect on the things in our lives that we are grateful for. This year, we’re giving it up for chemistry. We share some of our favorite chemical morsels in this episode and want to hear yours. Drop them in the comments below for a chance to win some bodacious Chemoji swag. Want more Speaking of Chemistry? Like us on Facebook! https://www.facebook.com/SpeakingOfChem/ And feel free to contact us at [email protected]! Want to stuff your face with more chemistry goodness? Check out these resources: Thanksgiving Dinner Chemistry & Seasoned Ammunition http://cen.acs.org/articles/84/i47/Newscripts.html From Sugarcane to Jet Fuel http://cen.acs.org/articles/93/i24/Sugarcane-Jet-Fuel.html Smart Phones, Smart Chemistry from ChemMatters http://www.acs.org/content/dam/acsorg/education/resources/highschool/chemmatters/archive/chemmatters-april2015-smartphones.pdf Top Pharmaceuticals: A Look at Drugs That Changed Our World http://www.pubs.acs.org/cen/coverstory/83/8325/index.html The Elements of a Smartphone from Compound Interest http://www.compoundchem.com/wp-content/uploads/2014/02/The-Chemical-Elements-of-a-Smartphone-v2.png Rethinking Our Risky Reliance on Rare Earth Metals from TIME http://science.time.com/2013/12/20/rare-earths-are-too-rare/ Speaking of Chemistry is brought to you by Chemical & Engineering News, the news magazine of the American Chemical Society.
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