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Product Name: EviTag Water-stable Quantum Dots
Product Description
EviTags are an exciting new water-stable semiconductor quantum dot
technology, developed by Evident Technologies, that is ideal for biotech
researchers and reagent developers. Biologically inert and conjugation-ready,
these nano-scale particles offer unique optical and chemical characteristics and
can be used to develop color multiplexing and single excitation assays.
Available with carboxyl or amine terminal groups for conjugation, EviTags range
in size between 30-50 nm with multiple reactive functional groups per particle.
Features
- Common Chemistry Coupling -- Proprietary coating is easily conjugated to
oligonucleotides, antibodies and proteins, using well-known, simple
chemistries
- High Stability -- Composed of inert, inorganic compounds coated with a
proprietary water-stable coating; resistant to photochemical damage
- Wide Color Range -- Approximate organic fluor emissions in standard
visible wavelengths; colors in the 490-600 nm range can be custom engineered.
Additionally, customized colors, unattainable by organic dyes, can be designed
- Photostability -- Long fluorescence lifetime; easily distinguished from
other sources of intrinsic fluorescence in long-period assays
- Broad Excitation Spectrum -- Excited with broadband excitation sources at
any wavelength shorter than EviTag's emission peak; facilitates simultaneous
detection and quantification
About EviTags
EviTags are manufactured using EviDot semiconductor nanocrystal technology.
EviDots are quantum dots that can be constructed to emit at wavelengths from
350-2500 nm, depending upon the physical size of the nanocrystal. A proprietary
coating is applied to these nanocrystals to create water-stable EviTag quantum
dots.
EviTag Applications
Attaching ligands to water-stable EviTag nanocrystals yields a highly stable
semiconductor material that can be bound to nucleic acids, antibodies and
proteins, and enable new forms of assays and detectors for numerous
applications.
- High-throughput screening in micro-fluidic systems
- Biological activity analysis
- Cell imaging
- Molecular biology
- ELISA assays
- Pathogen detection
- Genetic disease detection
Ocean Optics Systems for Use with EviTags
Ocean Optics makes available numerous light sources and filters that can be used
to excite EviTag nanocrystals. For instance, the LS-450 LED Excitation source
can be used with an LED-380 bulb to produce light at 380 nm and excite the full
range of EviTags. For broadband light sources that produce energy above the
EviTag's peak emission wavelength, an Ocean Optics Linear Variable Filter (LVF)
is suggested. An LVF effectively blocks or passes light between 300-700 nm.
To assemble a complete fluorescence spectrophotometric system for use with
EviTags, Ocean Optics recommends its USB2000-FLG Spectrometer and a USB-LS-450
Pulsed LED excitation source.
EviTags -- Single Vials
|
QD-T2-MP-1V |
Single vial of cadmium selenide nanocrystal compound
with a zinc sulfide shell (CdSe/ZnS) and a proprietary coating containing
carboxyl terminal groups; 6 nanomoles of EviTags per 0.5 milliliters
of deionized water; specify 490, 520, 540, 560, 580,
600 or 620 nm |
$399 |
|
QD-T2-MP-A-1V |
Single vial of cadmium selenide nanocrystal compound
with a zinc sulfide shell (CdSe/ZnS) and a proprietary coating containing
amine terminal groups; 6 nanomoles of EviTags per 0.5 milliliters of
deionized water; specify 490, 520, 540, 560, 580, 600
or 620 nm |
$399 |
Specifications
| Color: |
Lake Placid Blue |
Adirondack Green |
Catskill Green |
|
Emision peak (nm): |
490 +/-10 |
520 +/-10 |
540 +/-10 |
|
Typical FWHM (nm): |
<40 |
<30 |
<30 |
|
Excitation wavelength (nm): |
<450 |
|
1st Excitation peak (nm - nominal): |
~470 |
~505 |
~526 |
|
Concentration: |
0.25 mg/mL |
| Color: |
Hops Yellow |
Birch Yellow |
Fort Orange |
|
Emision peak (nm): |
560 +/-10 |
580 +/-10 |
600 +/-10 |
|
Typical FWHM (nm): |
<30 |
<30 |
<30 |
|
Excitation wavelength (nm): |
<450 |
|
1st Excitation peak (nm - nominal): |
~555 |
~566 |
~586 |
|
Concentration: |
0.25 mg/mL |
Company Details
Ocean Optics is a leading supplier of solutions for optical sensing – fundamental methods of measuring and interpreting the interaction of light with matter. We enable diverse applications in medical and biological research, environmental... more
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| Suitable For: |
light - spectrometer - spectrometers - Ocean Optics - sampling accessories - collimating lens - cuvette holder - cuvette - sampling systems for fluid analysis - fluorescence sampling tools - light collection tools - light measurement - flow cells - fluorovette - positive displacement pump - optical post mounts - reflection measurement tools - metrology - filter holder - mapping table - integrating sphere - reflectance standard - nanopositiioner - specular reflectance - absorbance standard - NIST - Raman standard - probe - cosine correction - radiometric standard -
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