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Analysis and identification of XPS spectra of organic polymer materials Product Literature

What is the basic structure of a Qdot nanocrystal? Product FAQ

Answer

A Qdot nanocrystal is comprises four basic layers. Listed from inner core to outer shell, these are:

1) Core nanocrystal (CdSe or CdSeTe): Determines the color of the Qdot nanocrystal
2) Inorganic shell (ZnS): Improves brightness and stability of the Qdot nanocrystal
3) Organic/polymer coating: Provides water solubility and/or functional groups for conjugation
4) Biomolecule: Covalently attached to the polymer shell and can include antibodies, streptavidin, receptor ligands, or oligonucleotides.

Answer Id:: E12217

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Organic-matter degradative potential of Halomonas glaciei isolated from frazil ice in the Ross Sea (Antarctica) Citations & References

  • Authors: Celussi, M; Balestra, C; Fabbro, C; Crevatin, E; Cataletto, B; Umani, SF; Del Negro, P
  • Journal: FEMS MICROBIOLOGY ECOLOGY 2008 3:504-512

Application Note: Analysis of a Dry Film Photo-Resist Product Literature

Application Index: Environmental Contaminant Analysis Compendium: From Sample to Compliance: a Comprehensive Collection of Methods Product Literature

Application Note: Accelerated Solvent Extraction of Plasticizers from Polyvinyl Chloride Polymer Product Literature

How do Phasemaker Tubes work? Product FAQ

Answer

Phasemaker Tubes work on the principle of density gradient centrifugation. Phasemaker Tubes contain a thick liquid polymer that is heavier than the aqueous phase of the TRIzol Reagent mix, but lighter than the organic phase, so after centrifugation, the polymer positions itself between these two layers and forms an exclusive physical barrier. It separates and completely isolates the upper aqueous phase from the organic phase underneath, making it very easy to aspirate the upper phase containing the RNA.

Answer Id:: E15197

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Are Dynabeads magnetic beads compatible with fluorescence activated cell sorting (FACS)? Product FAQ

Answer

All Dynabeads magnetic beads show some degree of autofluorescence. The polymer core matrix, the organic chemistry used on the surface, and the magnetic oxides contribute to the autofluorescence. When excited at 488 nm using an argon laser, the beads emit both green and red fluorescence that overlaps the fluorescence from FITC and PE, respectively. This will make the interpretation of fluorescence histograms difficult or, in some cases, impossible.

Answer Id:: E6203

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Application note: Multi-technique analysis for surface hydrogen quantification Product Literature

Brochure: Meet your separation needs - Standard UHPLC and HPLC columns Product Literature

Technical Note: Chromatographic Characterization of Stationary Phases for Hydrophilic Interaction Liquid Chromatography Product Literature

Apreo 2 SEM Brochure Product Literature

Orion product and application guide to winemaker’s chemistry analysis Product Literature

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