New products are constantly being developed. Please visit our web site often or contact us for the availability of unlisted products. The following products are available now:

Minute particles, Infinite possibilities
- Polystyrene Nanospheres
- Functionalized Polystyrene Nanospheres
- Fluorescent Nanospheres
- Nanoparamagnetic particles
- Coated Polystyrene Nanobeads

Sphero Gold Nanoparticles

High Efficiency for Maximum Sensitivity
- Suitable for clinical and point-of-care applications
- Excellent for gold particle aggregation due to high monodispersity, consistency and purity
- Reactive groups on uniform nanoparticles provide consistent and repeatable coating and binding
- Scale-up capability: Liter size batches available upon request
- Citrate Gold Nanoparticles, Streptavidin Coated Gold Nanopartciles, Biotin Coated Gold Nanoparticles, Custom Gold Nanoparticles & T25 DNA Coated Gold Nanoparticles available

Spherotech has different types of silica microparticles for high yields of DNA/RNA isolation.  Super magnetic amine-functionalized silica particles are good for isolating DNA/RNA from complex mixtures, using simple steps. Employing EDAC chemistry, these particles can be used for the immobilization of DNA/RNA/PNA on polystyrene and silica surfaces to capture the target from the mixture for detection.
Spherotech particles can be used in different types of DNA/ RNA based assays, using different types of reporter molecules, such as molecular beacons and fluorescently labeled probes. These particles are suitable for attaching DNA/RNA/PNA or modified oligonucleotides easily on the surface, as capture probes. Our recent development of polystyrene-NHS particles (Cat. No. NHSP-200-5) will allow the attachment of any amine-linked biomolecule to the polystyrene surface, within 30 minutes. These particles are then ready for use in the assay development. Spherotech has developed low and high intensity fluorescent particles, and these can be used in DNA and immunoassays as probe substrates for target detection.has different types of silica microparticles for high yields of DNA/RNA isolation.  Super magnetic amine-functionalized silica particles are good for isolating DNA/RNA from complex mixtures, using simple steps. Employing EDAC chemistry, these particles can be used for the immobilization of DNA/RNA/PNA on polystyrene and silica surfaces to capture the target from the mixture for detection.
Spherotech polystyrene and magnetic particles are a good source for developing DNA assays, and for isolating DNA from various complex mixtures. Streptavidin-coated polystyrene particles can be used for immobilizing biotin-linked oligonucleotides and biotin-linked primary antibodies, for genomic and immunoassay developments. Spherotech particles can be used for assay development, as they have high binding capacity and low auto fluorescence. We offer different types of functional groups like amine, carboxyl, hydroxy and sulfonate, for different types of attachment of molecules to the polystyrene and silica surfaces.

Drop Delay Calibration Particles (DDCP-70-2)
Fine tune your sorter with the appropriate attachment and Spherotech Drop Delay Particles. The Drop Delay Calibration Particles are used to determine the drop delay value. As a result, the accuracy and productivity can be improved while sorting. The Spherotech Cat. No. DDCP-70-2 is 2mL at 1x10⁸ particles/mL of a single population of fluorescent particles. In addition, these particles contain a mixture of fluorophores which allow detection in several channels of flow cytometers.

A single population of Rainbow Fluorescent Particles with enhanced UV and Far Red fluorescence intensity, 1x10⁷/ml, and 1X2 mL. The particle sizes available are ~3.0, ~3.8, and ~10.0 µm) Similar to our Rainbow Calibration Particles. However, an improved feature of the UltraRainbow Calibration Particles is its enhanced UV and Far Red fluorescence intensity, 1x10⁷/ml, ~3.8 µm. and ~5.1 µm. The Magnetic Blue PAKs (Particle Array Kits) are designed to simplify multiplex assay development using most Flow-cytometers. The CPAK consists of Carboxyl Fluorescent Magnetic Blue Particles with different intensities in PE-Cy5 channel and minimal fluorescence in FITC and PE channels with 488 nm excitation. Either or both FITC or PE can be used for detection. Spherotech offers two sets of the Magnetic Particle Array Kits. Sets can be used independently or mixed together ( 4.2 and 5.5 µm sizes available) We also offer Streptavidin Particle Array Kits for your convenience. SVPAK's are prepared by coating Streptavidin (covalently) onto Carboxyl Fluorescent Particles. Contact our Customer Representative today for more information! The COMPtrol Particles are coated with Goat anti-Mouse Ig (H&L). They bind to fluorochrome-conjugated monoclonal mouse antibodies used during cell staining. These particles provide a method for the quality control of these conjugates. They can also be used to aid in setting proper compensation to reduce the cross-talk between the channels of multicolor flow cytometers. COMPtrol Particle Kits are available in two sizes. A 3.0-3.4 µm. COMPtrol Particle Kit has Negitive and High Binding populations, each at a concentration of 1x10⁷/mL, in a 5mL volume. In addition, a 5.0-5.5 µm. COMPtrol Particle Kit has Negitive, Low and High Binding populations, each at a concentration of 2.5x10⁶/mL, in a 5mL volume. We have a new size to add to our carboxyl magnetic particle family. Spherotech now has the following catalog numbers: CM-025-10 (0.1 - 0.39µm), CM-05-10 (0.4 - 0.69µm), CM-100-10 (10.0 - 12.9µm), CM-150-10 (13.0 - 17.9µm), and CM-200-10 (18.0 - 24.0µm). We now have larger Donkey anti-Goat IgG (H&L) (Cross adsorbed with CK, GP, Hms, Hrs, Hu, Ms, Rb, Rat Sr Protein) coated polystyrene particles and magnetic particles available.
Cat. No. GMXA-40-10 : Donkey anti-Goat IgG (H&L) Magnetic Particles, 4.0-4.5 µm., 1 x 10 mL, 0.5% w/v
Cat. No. GPXA-60-5 : Donkey anti-Goat IgG (H&L) Polystyrene Particles, 6.0-8.0 µm., 1 x 5 mL, 0.5% w/v

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