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.