Global Educational Outreach for Science Engineering and Technology

Showing Lectures 1 through 25 of 94       Page: 1 2 3 4 Next

TitleTopic / SubtopicLevelPresenterDate RecordedDuration (Min)Feedback
A nano-sized gas sensor 1 - from Vega.org.ukSynopsis:
A short Introduction to the Nano2Hybrid European Research Project. A video profiling a nanotechnology research project supported by a European Materials Research grant aims to produce a tiny gas sensor using nanotubes that have been developed to be sensitive to different gases.		Chemistry / NanotechnologyUndergraduate - ages 18 - 22Various, PresentersMar 21, 200711Feedback
A nano-sized gas sensor 2 - Plasma treating nanotubes - from Vega.org.ukSynopsis:
The Namur group are heading up the nano2hybrids project. They are the specialists in plasma treatment of the carbon nanotubes to activate their surfaces, followed by putting down metal nanoparticles under vacuum. These are then sent to Spain to be made into test gas sensors.		Chemistry / NanotechnologyUndergraduate - ages 18 - 22Various, PresentersMar 21, 200711Feedback
A nano-sized gas sensor 3 - from Vega.org/ukSynopsis:
The Louvain-la-Neuve group are specialised in theoretical modelling at the atomic scale of the metal nanoparticles on the carbon nanotube surfaces, and in particular how electronic charge passes through the tubes in this case.		Chemistry / NanotechnologyUndergraduate - ages 18 - 22Various, PresentersMar 21, 200710Feedback
A nano-sized gas sensor 4 - from Vega.org/ukSynopsis:
The ULB partner in the project are specialised in plasma surface treatment under air, rather than vacuum - it`s the next step up in scaling up the plasma treatment of the nanotubes after the Namur group. In the earlier stages of the project they are starting to work with graphite, as this is a structurally simpler material to work with than nanotubes but nonetheless behaves in a similar way for the metal nanoparticles.		Chemistry / NanotechnologyUndergraduate - ages 18 - 22Various, PresentersMar 21, 20077Feedback
A nano-sized gas sensor 5 - from Vega.org/ukSynopsis:
The CRPGL group is a newly formed lab in Luxembourg. Within the project their role is to start looking at `scale up`, plasma treatment at larger scales than is possible in the other labs, coupled with a battery of different sample testing techniques.		Chemistry / NanotechnologyHigh - ages 14-19Lippmann, GabrielMar 21, 20072Feedback
A nano-sized gas sensor 5 - from Vega.org/ukSynopsis:
Institut des Materiaux, Nantes, France. The IMN group are specialists in computer modelling - in this case, of atomic defects and damage in the surface of the carbon nanotubes caused by the plasma treatment. What is the plasma doing to the nanotube surface, and do the metal nanoparticles stick to the damaged sections of tube? It`s up to the IMN guys to find out...		Chemistry / NanotechnologyUndergraduate - ages 18 - 22Rouxel, JeanMar 21, 200714Feedback
A nano-sized gas sensor 5 - from Vega.org/ukSynopsis:
The Tarragona Group at University Rovira i Virgili are the experts in producing new prototype gas sensors. All the new metal particle treated nanotube samples from Belgium and Luxembourg make their way down to this beautiful corner of Spain, where they are tested to see whether they can detect gases such as Benzene or not.		Chemistry / NanotechnologyUndergraduate - ages 18 - 22Various, PresentersMar 21, 20077Feedback
A nano-sized gas sensor 6 - from Vega.org/ukSynopsis:
Sensotran are the industrial partner in the nano2hybrids project. A small family firm based just outside Barcelona in Spain, they are experts in commercial production of gas sensors for a range of industries, notably for detecting dangerous gases produced in the petrochemical industry, and detectable in low concentrations at petrol stations. It is the goal of the project to produce a new nanotube-based sensor that will allow ultra-sensitive and rapid detection of gases in these environments - and preferably a cheap sensor too!		Chemistry / NanotechnologyUndergraduate - ages 18 - 22Delgado, MarcMar 21, 20077Feedback
A Revolution in Solar Energy ProductionSynopsis:
Dan gives a brief introduction into his group's discovery of a new and efficient catalyst which could be of vital importance in our search for better ways of capturing solar energy.		Chemistry / PhysicalGeneral interest - all agesNocera, DanJul 31, 20082Feedback
ACS Richard Smalley EulogySynopsis:
A moving address by Harry to the ACS meeting in San Francisco about his colleague and fellow Nobel Prize winner, Richard Smalley.		Chemistry / PhysicalGeneral interest - all agesKroto, HarrySep 10, 200629Feedback
ACS streamed presentationSynopsis:
Address via mediasite to the American Chemical Society, San Francisco in October 2006. A plea for the promotion of science in modern society and how politicians deride science.		Chemistry / PhysicalUndergraduate - ages 18 - 22Kroto, HarrySep 10, 200622Feedback
Advancements and improvements to etherification and olefination reactionsSynopsis:
Etherification and olefination reactions play an important role in synthetic organic chemistry on a daily basis. As organic chemists we apply these methods to tackle synthetic targets of ever increasing complexity. As a graduate student in the Dudley lab at Florida State University since June of 2006, I have had the opportunity to work on 2 different projects that have dealt with advancing and improving on the methodology of etherification and olefination reactions. The more current of the two projects, recently published in the Beilstein Journal of Organic Chemistry (Lopez, S.S.; Dudley, G.B.; Beilstein J. Org. Chem. 2008, 4, No. 44. doi:10.3762/bjoc.4.44), describes an efficient and convenient protocol for the in situ formation of benzyl ethers and esters using 2-benzyloxyprydine. The latter portion of the talk focuses on the advancements and improvements we have made to the Lewis acid catalyzed Meyer-Schuster rearrangement (Engel, D.A.; Lopez, S.S.; Dudley, G.B. Tetrahedron. 2008, 64, 6988 invited contribution/ Lopez, S.S; Engel, D.A.; Dudley, G.B. Synlett., 2007, 64, 949) which we have efficiently used to olefinate hindered ketones as well as aldehydes.		Chemistry / OrganicGraduate - ages 21 - 25Lopez, SusanaNov 11, 20084Feedback
Anti-Body Coated Magnetic NanoparticlesSynopsis:
Philip Shlenoff, recent high school graduate, gives a presentation of his work and opportunity at the Florida State University Dept. of Chemistry. Under the supervision of Zaki Estephan, Philip has actively participated in research that targets cancer cells and provides treatment in a dynamic environment. Philip also explains a bit about a technique he has designed to simulate biological processes so that experimentation on live animals is not neccessary for this type of research.		Chemistry / BiochemistryUndergraduate ages 18-22Schlenoff, PhilipJun 17, 20105Feedback
Architects of the Microcosmos - from Vega.org.ukSynopsis:
In thistalk Harry Kroto explains that molecules have structures that are every bit as real in the mind of the chemists who create them, as are the edifices of brick, steel and concrete designed by architects and built by engineers.		Chemistry / PhysicalHigh - ages 14-19Kroto, Harry58Feedback
Architecture in NanospaceSynopsis:
A brief history of carbon-60 and its developments into useful materials. How can chemistry help move us towards a more sustainable existence.		Chemistry / NanotechnologyHigh - ages 14-19Kroto, HarryJan 29, 200727Feedback
Atmospheric Chemistry - from Vega.org.ukSynopsis:
In this interview Sherwood Rowland talks about Ozone depletion and the effect of CFCs on Ozone and Global Warming (Greenhouse Warming where infrared radiation is trapped). He explains the chemistry of Ozone depletion and the history of what led to the banning of CFCs starting in 1974 with his joint first publication on the subject with Mario Molina which advocated banning CFCs. This led in 1995 to a ban on CFCs being used in aerosol sprays (limited to the State of Oregon) and a year later a total ban of the use of CFCs in aerosol sprays. He says that the ban was brought about by public coverage of the damage to the Ozone i.e. Newspaper coverage (over 400 newspapers in the US alone covered the story).		Chemistry / InorganicHigh - ages 14-19Rowland, SherwoodMar 20, 200642Feedback
Battery Technology - from Volta to the 21st Century.Synopsis:
Mitchell Herring presents on battery technology from Volta to the 21st century.\n		Chemistry / EnergyHigh - ages 14-19Herring, MitchellApr 22, 20096Feedback
Bio-fuels and solar energySynopsis:
A comparison of bio-fuels and solar energy. Examples include algae-based oil and solar panels.		Chemistry / EnergyHigh - ages 14-19Nielsen, AlexisNov 12, 200911Feedback
Biofuel TechnologySynopsis:
Miles Bradshaw presents on the present and future of biofuel technology.\n		Chemistry / EnergyHigh - ages 14-19Bradshaw, MilesApr 25, 200912Feedback
Bioscience and Nanotechnology - peptide assemblies - from Vega.org.ukSynopsis:
Toyo University Bio-Nanotechnology Symposium Lectures; Dr Woolfson talks on the self-assembly of peptides.		Chemistry / BiochemistryUndergraduate - ages 18 - 22Woolfson, Dek52Feedback
Bridges with Organic ChemistrySynopsis:
The development of reliable molecular scale building blocks for the construction of nanoscale devices is one of the greatest challenges for the development of numerous applications of these exciting materials. This research describes our efforts in the development of cascade reactions, utilizing the rich potential of triple bonds and the unique capabilities afforded by radical intermediates to achieve the efficient one-pot synthesis of complex polycyclic compounds related to carbon nanowires and nanotubes.		Chemistry / OrganicGraduate - ages 21 - 25Gilmore, KerryNov 11, 20088Feedback
Bucky Balls - from Vega.org.ukSynopsis:
The Buckyball, or C60 molecule was discovered by accident (in the lab) while trying to understand the chemistry between the stars in the Interstellar Medium ISM. The discovery led to the Nobel Prize in chemistry in 1996. Here we look at the structure of C60 and make a molecular model.		Chemistry / OrganicHigh - ages 14-19Hare, JonathanMar 21, 20078Feedback
Bugs that Digest Sulphur to Help Plants GrowSynopsis:
The role of sulphonate mineralising rhizobacteria in sulphate-limited soils.		Chemistry / InorganicUndergraduate - ages 18 - 22Schmalenberger, AchimJan 02, 20086Feedback
C60, the Celestial Sphere that Fell to Earth - from Vega.org.ukSynopsis:
In 1985 an experiment, designed to unravel the carbon chemistry in Red Giant Stars, revealed the existence of C60 Buckminsterfullerene (the third allotropic form of carbon). The story of the discovery and the way its symmetry relates to the natural and physical world are described. This elegant cage molecule which has the same shape as a football heralds a new era of novel 21st Century Materials.		Chemistry / PhysicalHigh - ages 14-19Kroto, HarryMar 20, 199554Feedback
Carbon SequestrationSynopsis:
Why is carbon sequestration so important?		Chemistry / InorganicHigh - ages 14-19Serniak, KyleNov 13, 200912Feedback

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