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.

Search Within Results

406 – 420 of 1,135 results

406

Molecular Devices Fluorescence Polarization Filter, 595 nm, 35 nm, Horizontal

This fluorescence polarization filter is specified for fluorescence polarization assays on compatible microplate readers. It has a 595 nm center wavelength with a 35 nm bandwidth and a polarized horizontal orientation, and is supplied with a holder for mounting in standard filter slides or modules.

Center wavelength 595 nm.
Bandwidth 35 nm.
Polarization: horizontal.
Includes holder for filter slide or module mounting.
Intended for fluorescence polarization assays on compatible multi-mode microplate readers.

Pricing & Availability

407

Perkin Elmer US LLC Micro ATR Objective for the Multiscope Systems

This accessory offers transmission, reflectance, and visible viewing modes all in one device; no realignment or extra equipment required.

Pricing & Availability

408

Alkali Scientific ASI™ Black Confocal Dish 35 x10mm, Easy-Grip, Adhesion Type, Sterile, Non-Treated (Non-Charged/ Hydrophobic), 100/Cs, 22 x 22 x 0.13mm, Hole 1.33mm, PS/Glass

ASI™ confocal products allow researchers to acquire high resolution microscopic images of cells in 35 mm culture dishes or 6 well plates. Low auto-fluorescence glass and FLux were used, ideal for uses of these products are confocal microscopy, phase contrast microscopy, live cell imaging and micro-manipulations. Surface materials for confocal products:Glass: naturally charged, good growth surface for adherent cellsFLux: surface modified plastic film (188 μm thick), optimal for confocal microscopy Bottom materials: Glass/FLux (no surface treatment for glass bottom) Coverslip: #1.5 Dish color: Clear/Black Dish size: 35 Ø Hole size: 13 Ø / 20 Ø / 25Ø Non – pyrogenic Non – cytotoxic DNase / RNase – free Human DNA – free

Pricing & Availability

409

Meso Scale Discovery MSD SECTOR IMAGER KIT

MSD SECTOR IMAGER KIT ..

Pricing & Availability

410

Molecular Devices SpectraDrop Cover Slides, 4 μL, 1.0 mm Path

Molecular Devices SpectraDrop Micro-Volume cover slide refills provide replacement cover slides for low-volume absorbance and fluorescence measurements. Each pack contains three 4 μL cover slides with a 1.0 mm path length, designed to restore and extend micro-volume workflows while minimizing sample consumption.

Pack contains three 4 μL cover slides.
Path length 1.0 mm.
Enables measurements with sample volumes as low as 2 μL.
Designed for micro-volume absorbance and fluorescence measurements.
Helps reduce sample consumption and increase throughput.

Pricing & Availability

411

Molecular Devices Absorbance Filter, 420 nm, 8 nm bandwidth, FilterMax

Molecular Devices FilterMax absorbance filter designed for fixed-wavelength absorbance assays. The filter provides narrowband transmission centered at 420 nm with approximately 8 nm full width at half maximum and is supplied as an accessory for FilterMax microplate readers.

Provides narrowband transmission centered at 420 nm.
Approximately 8 nm full width at half maximum for high wavelength specificity.
Optimized for absorbance assays on compatible multimode readers.
Supplied as a replaceable accessory for FilterMax F3 and F5 series readers.

Pricing & Availability

412

Molecular Devices Fluorescence Polarization Filter, 485 nm, 20 nm, Vertical

The Molecular Devices fluorescence polarization filter (MPN 6590-0094) is a vertical polarization filter engineered for fluorescence polarization assays with a 485 nm center wavelength and a 20 nm optical bandwidth. It is intended as a replacement or accessory filter for compatible multi-mode microplate readers.

Optimized for fluorescence polarization assays at a 485 nm center wavelength.
20 nm bandwidth provides narrow spectral selection and reduced crosstalk.
Vertical polarization orientation for polarization-based measurements.
Designed for installation in filter-slide assemblies of compatible microplate readers.
Replacement filter for restoring or modifying detection channels.