248 results found for chemistry

Until recently, most of the 24 d-block transition metals had been used primarily as useful materials for (i) construction and also as tools and containers, etc., (Ti, Zr, Fe and their alloys with V, Cr, Mn, Co, Ni, etc.), (ii) precious and ornamental....

In an evangelical spirit, three vignettes will be presented that have the character of molecular parables: stories with lessons that transcend the specific details.(1) How knowledge of the orientation of a methyl group with respect to a neighboring d....

Catalysis by solid surfaces is, among others, of importance for the chemical industry (e.g. the Haber-Bosch process) as well as for environmental chemistry (car exhaust catalyst).  Surface physical techniques enable investigation of the underlying e....

The palladium-catalyzed cross-coupling reaction between different types of organoboron compounds and various organic halides in the presence of base provides a powerful and general methodology for the formation of carbon-carbon bonds.  The (sp3)C-B ....

G protein coupled receptors (GPCRs) conduct the majority of cellular responses to hormones and neurotransmitters, and are therefore the largest group of pharmaceutical targets for a broad spectrum of diseases.  Identification of genes for GPCRs, ini....

Olefin metathesis is an irresistible way to make C=C bonds catalytically in organic molecules and polymers, both as a consequence of its very nature, i.e. the synthesis of C=C bonds from C=C bonds, and because of the control that can be exercised thr....

Much of the chemical industry is based on processes that were developed decades ago.  The change in the cost of petroleum carbon and energy sources and the need to control emissions of carbon dioxide and other pollutants will change the rules of the....

Supramolecular chemistry lies beyond molecular chemistry.  It aims at implementing highly complex chemical systems from molecular components held together by non-covalent intermolecular forces and effecting molecular recognition, catalysis and trans....

We consider two fields of single molecule studies of intermittently fluorescing systems.  In both fields the intermittency is assumed to involve diffusion controlled electron transfer.  One of these studies involves the initial steps in dye-sensiti....

Some observers might think that fierce scientific competition borders on a rat race.  According to Wikipedia: "A rat race is an endless, self-defeating, or pointless pursuit.  It conjures up the image of the futile efforts of a lab rat trying to es....

Jonathan Christian discusses what it means to be a material/physical chemist. He shows how a physical chemist characterizes materials using his research into Chromium 3+ polyoxometalates.

Florida State graduate student Brian Gold discusses his research into click chemistry, that is building complex molecules using simple reactions that always work. Brian's project focuses on increasing ring strain of organic molecules without reducing....

BC3 is a honeycomb lattice which has some novel electronic properties.

Kristen Pace presenting her research at the FSU Research Remix

A laboratory demonstration of Carbon Dioxide's effect of global warming.

Some intimate details of this novel new material.

Jonathan describes a smaller 'buckyball' with its inherent differences from C60.

How the structures of fullerene molecules obey the rules of mathematics discovered long ago by Euler.

Some of the subtleties of the structures found in carbon nanotubes.

Jonathan Hare describes the novel chemistry of the C60 molecule.

Jonathan describes the construction of a model of the C60 molecule.

The differences in the structures and properties of the various allotropes of carbon are clearly explained.

How the production of new polymers has made long- and skate-boarding possible.

In October 2010 the Nobel Prize for Physics was won by Andre Geim and Konstantin Novoselov at Manchester University for their work on graphene but if you are left wondering just what graphene is then watch this video. Jonathan explains all.

Jonathan explains what graphene is and how it fits into the revolution in carbon science.

Jonathan shows how a sheet of graphite (hexagons) can be modified to make closed cages and tubes.  In real life the smallest of these tubes are only 1/100,000,000 meter in diameter - a nanometer (nm) - hence they are called nanotubes.  Depending on....

Duke University

Brahatheeswaran describes how tissue scaffolds can be made in novel ways.  This lecture is his PhD thesis defence.

During his PhD thesis defence, Ankur looks at the ways in which various techniques are used for the creation of the desired structural characteristics of carbon nanotubes  

Peter Agre shared the 2003 Nobel Prize in Chemistry with Roderick MacKinnon “for discoveries concerning channels in cell membranes.” Here he gives a lecture in Russia as part of the Nobel Prize Inspiration Initiative

Jess gives a lively account of her work which involves the study of how uranium organ-metallics can catalyse unusual and useful reactions.  She is a PhD student at the University of Sussex, UK.

In the seventeenth and eighteenth centuries, fireworks offered some intriguing possibilities for scientific research among the experimental philosophers of the Royal Society. What was the nature of fire? How did combustion work? Why did gunpowder exp....

With the aid of Prof. Sir Harry Kroto, Dr Peter Wothers demonstrates that both Diamond and Graphite are indeed made of Carbon.

The science of carbon nanotubes and related materials. How can we use them to make novel hybrid structures?

Over the past few years some of the first examples of synthetic molecular level machines and motors Ñ all be they primitive by biological standards Ñhave been developed. These molecules respond to light, chemical and electrical stimuli, inducing mo....

Start at 15:00 minutes.  Dr Jeremy Spencer examines the role of flavonoid-rich foods which have been shown to promote a healthy heart and improve our mind and mood.

Basic research in science has greatly increased our understanding of nature, expanded frontiers of inquiry, shown us how little we know, triggered creative waves of invention and innovation, and prompted technological breakthroughs that were inconcei....

The world faces the fundamental problems of increasing waste and decreasing resources as it tries to cope with the increasing consumption of a growing population.  It is clear that these challenges can only be met through a fundamentally different a....

Sustainability is not just about carbon or carbon dioxide, it is also about the sustainable use of the planet's finite mineral and material resources. The availability, affordability and sustainable of supply of a number of important chemical element....

Professor Nick Terrill, principal beamline scientist at Diamond Light Source, explains how intense light produced at the UK's national synchrotron science facility in Oxfordshire is being used to examine colour changing polymers and research the next....

Dr Derek Craston, the UK Government Chemist, reveals how Captain Scott's preparations for his 1901 Discovery Expedition to the Antarctic included a personal request to the Government Chemist to analyse his planned food supplies. Tellingly, the resea....

Phil Souter, scientist at Procter & Gamble, discusses the challenges faced in making potential water sources (such as lakes, ponds, wells, flood water) drinkable using chemical technology. During the lecture he will touch upon the impact of unsaf....

Start at 35 minutes.  Professor AbuBakr Bahaj, Professor of Sustainable Energy at the University of Southampton, talks about the importance of planning cities and the potential of reducing their impact on the environment and resources.

Dr Richard Miller, Head of Sustainability at the UK's Technology Strategy Board, speaks about the problems we are facing in our cities and current ways in which these are being addressed.  He gives examples of how chemists and small-medium sized ent....

This talk shows how scientists use structural and modelling techniques to help understand the fascinating properties of crystalline materials.

The discoverer of these really useful reactions talks about their discovery and development.

Professor Monique Simmonds talks about the use of plants and fungi as sources of sustainably harvested medicines

A panel of experts discussed the powerful effects that fragrances have on enhancing lives, rehabilitation and triggering reactions and memories.

Alan Marshall describes how the ultra-high resolution, obtainable with very large magnetic fields, of Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) enables rapid and accurate analysis of very complex mixtures.

Chemistry is central to everything you do in your life. So much so, that we take it for granted and often forget about it. This talk, through a series of short demonstrations aims to convey the major themes that underpin the wonder of chemistry.

Eighteenth-century chemists could gain useful income and patronage as advisors to industry – and some of the wealthiest and most influential industrialists were brewers. Making chemical knowledge credible to this audience, however, was not always e....

When science meets fashion exciting things happen. Unlikely collaborators designer Helen Storey MBE and scientist Tony Ryan OBE have teamed up for Catalytic Clothing - a radical project that endeavours to clean the air we breathe through the clothes ....

The use of computer simulation continues to advance bringing scientists and engineers the insight of graphical simulations at the molecular level

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 canc....

Early rare earth metals (La, Ce, Pr, Nd) combined with late first row transition metals (Fe, Co, Ni) can produce low melting eutectic mixtures. For instance, a 75:25 mole percent mixture of La and Ni forms a eutectic that melts at 532 õC. We are inv....

Microwave chemistry is a field that is growing in popularity. Microwave radiation offers a more efficient means of heating compared to traditional thermal processes. The added efficiency comes from the idea of selective heating. It is important to un....

Alan G. Marshall, Florida State University's 2006-2007 Lawton Professor, will speak on 'Reading Chemical 'Fine Print': The Key to Unlocking Nature's Isotopic Zoo' as he delivers the Tenth Annual Robert O. Lawton Distinguished Professor Lecture.'Natur....

The chemical reactions that cause 'red tide', as well as the effect of the chemical processes.

A look at the interesting history of nitrous oxide

Explaining the chemistry behind gasoline. Also given is an explanation of ethanol, an alternative fuel.

A general overview and a brief history of the green movement.

Why is carbon sequestration so important?

Green chemistry

Chemiluminescence and bioluminescence. General chemistry explained and examples such as fireflies, Wintergreen mints, etc. are introduced

An examination of the usefulness of fuel cells

A comparison of bio-fuels and solar energy. Examples include algae-based oil and solar panels.

Five years ago this summer (in 1999), the Royal Society and the Royal Academy of Engineering issued a report on Nanoscience and nanotechnologies: opportunities and uncertainties. The report had been commissioned by the Government, and has been widely....

In 1959, Richard Feynman proposed a variety of new nano-tools including the concept of atom by atom' fabrication. In the intervening decades, many of these predictions have become reality. Andrew de Mello assesses the current impact of lab-on-a-chip ....

Sir Harry Kroto won the Nobel Prize for discovering the soccer-ball-shaped fullerenes, strangely-structured carbon molecules also known as buckyballs. These molecules led to the development of carbon nanotubes and the burgeoning field of nanoscience.....

Young scientists like Maartje Bastings are set to revolutionise the way we deliver drugs. Her work will aid the development of 'smart drugs' which target specific proteins in the membranes of particular cells, proteins like the aquaporins discovered ....

The 2008 Nobel Prize in chemistry was awarded to Roger Tsien and colleagues for work on the green fluorescent protein (GFP). This protein, originally found in jellyfish, enables scientists to track the activity of individual proteins within living ce....

Catalysts facilitate almost every reaction in the human body. They also enable us to make all kinds of molecules in the lab, and few people have contributed more to this field than Richard Schrock. Can he help Norweigan student Christer pstad to cata....

A wonderful set of videos about all the elements, available interactively from the opening page.

Miles Bradshaw presents on the current status and future of biofuel technology.

Dmitry Shemetov presents on the development and future of quantum computing.

Mitchell Herring presents on battery technology from Volta to the 21st century.

Darryl Ventura presents his research into developing functional carbon nanotube based materials.

Solar power technology and recent research

Brian Gold presents on the geometry, mathematics, and applications of group theory in chemical fingerprinting.

We see smaller and smaller objects through naked eye and microscopes, from hair to atoms.

Toyo University Bio-Nanotechnology Symposium Lectures; Dr Woolfson talks on the self-assembly of peptides.

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 s....

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 ma....

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.

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 ....

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.

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 s....

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 th....