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Science  30 May 2008:
Vol. 320, Issue 5880, pp. 1230
DOI: 10.1126/science.320.5880.1230

Stem Cell Culture

HyStem hydrogel is a synthetic matrix that can be used in a xeno-free cultivation system for the expansion of human embryonic stem cells, CD34+ stem cells, and hepatic stem/progenitor cells. HyStem is suitable for in vitro and in vivo research and is transparent, enabling live cell imaging at any point during culture. Once mixed, the hydrogel forms in less than 20 minutes at physiological pH and temperature, with rigidity dependent on cross-linker quantity.

Glycosan BioSystems

For information 801-583-8212

Terahertz Spectrometer

The Spectra 3000 is a terahertz spectrometer capable of performing both transmission and attenuated total reflection (ATR) measurements. The proprietary platform makes use of the terahertz region of the spectrum between light and radio waves and offers the advantage of being noninvasive and nondestructive. It provides rapid and accurate chemical and structural identification of materials normally invisible via conventional techniques. Terahertz radiation interrogates the fundamental vibrations between molecules, providing intermolecular information previously difficult to obtain. Applications of the new spectrometer include providing information on crystalline structure, investigating and identifying polymorphs, explosives fingerprinting, airborne agent and gas-phase detection, and investigation of pharmaceutical tablet constituents.

Tera View

For information +44 (0) 1223 435380

Cytotoxicity Assay The CytoTox-Glo Cytotoxicity Assay provides a sensitive, simple, luminescent method for detecting small changes in cell viability. The assay measures a distinct “dead-cell” protease biomarker released from cells that have lost membrane activity, a key indicator of cytotoxicity. The assay makes use of a peptide substrate that releases luciferin after cleavage by the “dead-cell” protease. The luciferase/luciferin reaction produces light of intensity that correlates with dead-cell number.


For information 608-274-4330

Fast Spectrometer The USB2000+ Miniature Fiber Optics Spectrometer offers the ability to monitor high-speed chemical and biochemical reactions. It features a charge-coupled device (CCD) array detector with a high-speed USB 2.0 port interface that can capture and store a full spectrum into memory at 1,000 scans per second. The spectrometer measures optical properties within a wavelength band of 200–1,100 nm. It can be equipped with a fixed grating that disperses the light to the 2,048-element CCD array detector, producing results at a resolution of 0.35-nm with full-width-at-half-maximum sharpness. The USB2000+ can be custom configured with a choice of 14 gratings, six slits, and hundreds of fiber optic accessories for specific applications.

Ocean Optics

For information 727-733-2447

Unstable DNA Cloning

Copy Cutter EPI400 E. coli cells can significantly improve cloning results for unstable or toxic DNA sequences in many commonly used vectors. The CopyCutter EPI400 cell line reduces the copy number of plasmids with difficult-to-clone inserts to less than five per cell, thus improving the likelihood of successful cloning and stable clone maintenance. The cells are available in electrocompetent or chemically competent forms.

Epicentre Biotechnologies

For information 800-284-8474

DNA and RNA from Plant Material

The Agencourt Chloropure System is an extraction kit for DNA and RNA isolation and purification from plant material that delivers high recovery. The Agencourt Chloropure chemistry is automated on the Beckman Coulter Biomek NXP and FXP Laboratory Automation Workstations to process three 96-well plates in just 80 minutes. This patented, paramagnetic bead-based nucleic acid purification technology does not require organic solvents, vacuum filtration, or centrifugation steps.

Agencourt Bioscience

For information 978-867-2962

Bunsen Burner Alternative

The Fireboy is a safe and mobile alternative to the traditional Bunsen burner. Operating from a gas cartridge and powered from a rechargeable battery, the Fireboy can be used wherever needed. Advanced temperature protection, flame monitor, and alarm display features protect the operator and the operating environment. The gas ignition is rapid and safe, requiring no outside flame.

Integra Biosciences

For information +41 81 286 9530

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