Photoactivated release of membrane impermeant sulfonates inside cells.

Photouncaging delivers compounds with high spatial and temporal control to induce or inhibit biological processes but the released compounds may diffuse out. We here demonstrate that sulfonate anions can be photocaged so that a membrane impermeable compound can enter cells, be uncaged by photoirradiation and trapped within the cell

On the measurement of laser-induced plasma breakdown thresholds

The breakdown threshold of a gas exposed to intense laser-radiation is a function of gas and laser properties. Breakdown thresholds reported in the literature often vary greatly and these differences can partially be traced back to the method that is typically used to determine breakdown thresholds. This paper discusses the traditional method used to determine breakdown thresholds and the potential errors that can arise using this approach, and presents an alternative method which can yield more accurate data especially when determining breakdown thresholds as functions of gas pressure

Adaptation of BODIPY dyes to investigate drug delivery and develop 'self-reporting' activity-based probes

Abstract not currently available

Information and communication technology for Edexcel applied AS level single award

Esta escrito para apoyar las nueva especificación Edexcel AS en las tecnologías de la información y la comunicación (ICT). Su contenido se estructura en tres unidades: la edad de la información; la economía digital; y el trabajador del conocimiento.SCBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel. +34917748000; [email protected]

Tunable Diode Laser Absorption Spectroscopy as a Flow Diagnostic Tool: A Review

Optical diagnostic techniques are routinely being used in high speed flow facilities to measure flow properties such as concentration, temperature and velocity, and thus, to study the flow physics. One such technique, tunable diode laser absorption spectroscopy (TDLAS), has proved to be particularly suitable for hostile environments such as shock tunnels and flight tests. The fundamentals, operating principle, applications and scope of the technique in high speed flow research is discussed in this review, with references to some relevant examples