Microplate Readers and Reader Accessories
Microplate readers are a type of spectrophotometer designed specifically for analyzing multiple samples in multi-well plates.
The readers detect light signals that result from biological, chemical, biochemical, or physical reactions. The signals are produced by, converted by, or transmitted through the samples and are measured by a detector. The detectors are usually photomultiplier tubes (PMT), which convert the released photons into electricity. The current is quantified by the reader’s software to produce the numerical result.
In some cases, samples are first excited by exposure to light of specific wavelengths. Filters or monochromators are used to select or restrict the wavelengths needed for emission or detection.
Single-mode microplate readers commonly measure absorbance, fluorescence, or luminescence. Multi-mode plate readers may measure absorbance, fluorescence, and luminescence with options for fluorescence polarization (FP). They may also include lasers for time-resolved fluorescence (TRF), TR-FRET, Amplified Luminescent Proximity Homogeneous Assays (ALPHA), and cell imaging.
Features may include:
- Monochromator- or filter-based wavelength selection
- Visible only or UV/Vis spectrum, fluorescence, and luminescence
- Multiple photomultiplier tubes (PMTs) for simultaneous assays
- Temperature and CO2/O2controls
- Modular design for adding functionality
Microplate readers are used for high-throughput screening (HTS), biomarker assays, nucleic acid and protein quantification, kinetics, ELISA assays, homogeneous time resolved fluorescence (HTRF) for measuring cytokines, bioluminescence resonance energy transfer (BRET), and other techniques.
Promocell GmbH PromoCell 3D Tumorsphere Medium XF prf 250 ml, with C-39870 attached to flask
The PromoCell 3D Tumorsphere Medium XF is a culture system developed for the standardized serial culture of cancer cell lines as tumorspheres/mammospheres. The formulation supports sustained cell proliferation allowing for serial passage of the 3D culture. Its serum-free and xeno-free formulation provides a culture environment devoid of all stimuli originating from non-defined materials.Components:The PromoCell 3D Tumorsphere Medium XF consists of a bottle of Basal Medium and one vial of SupplementMix. Adding the SupplementMix to the Basal Medium results in the complete medium.Key features:Establish 3D tumorsphere cultures directly from 2D cancer cell lines Suitable for long-term routine culture of tumorspheres Compatible with most commonly used cancer cell lines Xeno-free and serum-free formulation
Electron Microscopy Sciences Counting Chamber Cover Glass, 27x37x0.5mm
For use with counting chambers.
Size: 27 x 37 x 0.5 mm
Revvity Health Sciences Inc HTRF CHO HCP Detection Kit, 500 Assay Points
HTRF CHO HCP Detection Kit, 500 Assay Points
Electron Microscopy Sciences Nagoette Double Counting Cell 0.5 mm
Counting cells are used to create precise volumes of liquid to enable counting of particles in a specified volume of liquid. A thick slide (glass or plastic) has an area cut into its surface that will hold precise volumes of bathing fluid. The shallow well, facilitating easy counting of contained particles. In use, a single drop of liquid is placed on the slide and a coverglass is placed on the platform providing equal and accurate subdivisions of the fluid each of which can be observed for particle counting. All complete with case and 1 pair of cover glasses. The depth of the Nageotte counting is 0.5 mm. For Liquids in Poor content.
Electron Microscopy Sciences USAF Test Chart R75N Negative Image
USAF resolution charts are recognized the world over as a universal standard for testing the vertical and horizontal resolution of imaging systems. Each element on the chart comprises three vertical bars and three horizontal bars, and the detail on these slides is as fine as 0.78microns (644 line-pairs per mm). The resolution of the imaging system is normally specified as the Group and Element of the finest bars that can be clearly defined. Sub Micron smallest feature size - bar width 0.00078mm [0.78 um].
Type: Negative Image
Use: Groups 0/1 to 9/3