FluoSpheres™ Carboxylate-Modified Microspheres
FluoSpheres™ Carboxylate-Modified Microspheres
Citas y referencias (18)
Invitrogen™

FluoSpheres™ Carboxylate-Modified Microspheres

Consiga la fluorescencia más brillante gracias a las microesferas FluoSphere modificadas con carboxilos, disponibles en diferentes colores y tamaños de partículas.
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Número de catálogoDiámetro (métrico)ColorExcitación/emisiónCantidad
F88231,0 μmAmarillo-verde505/515 nm10 mL
F88030,1 μmAmarillo-verde505/515 nm10 mL
F88161,0 μmCarmesí625/645 nm2 mL
F88010,1 μmRojo580/605 nm10 mL
F88110,2 μmAmarillo-verde505/515 nm10 mL
F88070,2 μmRojo oscuro660/680 nm2 mL
F107200,04 μmAmarillo-verde, Naranja, Rojo, Rojo oscuro505/515, 540/560, 580/605, 660/680 nm1 ml (cada uno)
F208810,2 μmNaranja365/610 nm2 mL
F8783
también denominado F-8783
0,02 μmRojo oscuro660/680 nm2 mL
F87860,02 μmRojo580/605 nm10 mL
F8795
también denominado F-8795
0,04 μmAmarillo-Verde505/515 nm1 mL
F88130,5 μmAmarillo-verde505/515 nm10 mL
F88201,0 μmNaranja540/560 nm10 mL
F88252,0 μmRojo Nilo535/575 nm2 mL
F88272,0 μmAmarillo-verde505/515 nm2 mL
F8781
también denominado F-8781
0,02 μmAzul365/415 nm10 mL
F8782
también denominado F-8782
0,02 μmCarmesí625/645 nm2 mL
F87840,02 μmRojo Nilo535/575 nm10 mL
F87870,02 μmAmarillo-verde505/515 nm10 mL
F8789
también denominado F-8789
0,04 μmRojo oscuro660/680 nm1 mL
F8792
también denominado F-8792
0,04 μmNaranja540/560 nm1 mL
F87930,04 μmRojo580/605 nm1 mL
F87940,04 μmRojo-naranja565/580 nm1 mL
F87970,1 μmAzul350/440 nm10 mL
F87990,1 μmInfrarrojo715/755 nm1 mL
F8800
también denominado F-8800
0,1 μmNaranja540/560 nm10 mL
F88050,2 μmAzul365/415 nm10 mL
F88060,2 μmCarmesí625/645 nm2 mL
F88090,2 μmNaranja540/560 nm10 mL
F88100,2 μmRojo580/605 nm10 mL
F88120,5 μmRojo580/605 nm10 mL
F88141,0 μmAzul365/415 nm10 mL
F88151,0 μmAzul350/440 nm10 mL
F88191,0 μmRojo Nilo535/575 nm10 mL
F88211,0 μmRojo580/605 nm10 mL
F8824
también denominado F-8824
2,0 μmAzul365/415 nm2 mL
F88262,0 μmRojo580/605 nm2 mL
Número de catálogo F8823
Precio (MXN)
-
Diámetro (métrico):
1,0 μm
Color:
Amarillo-verde
Excitación/emisión:
505/515 nm
Cantidad:
10 mL

Utilice nuestra amplia selección de microesferas modificadas con carboxilatos FluoSpheres para realizar fácilmente citometría de flujo, microscopía, HTS, HCS, inmunoensayo, así como otras aplicaciones de laboratorio. Los gránulos FluoSphere se pueden utilizar en adsorción pasiva o activa, acoplamiento covalente de proteínas, ácidos nucleicos y biomoléculas para aplicaciones de captura de partículas. Las microesferas FluoSphere están cargadas de colorantes fluorescentes exclusivos, lo que las convierte en las microesferas más brillantes disponibles.

Visualice la fluorescencia más brillante para aplicaciones de laboratorio, como microscopía de fluorescencia, citometría de flujo, HTS, HCS y rastreo celular, gracias a nuestras microesferas FluoSphere modificadas con carboxilatos, fabricadas con microesferas de poliestireno y cargadas con diferentes colorantes patentados. Gracias al uso de métodos de coloración especializados, permite que todas las moléculas de colorante fluorescente estén contenidas dentro de cada microesfera de poliestireno, en lugar de en la superficie. Este entorno de protección dentro del gránulo protege el tinte de efectos medioambientales perjudiciales, como la decoloración fotográfica. Nuestras microesferas modificadas con carboxilato están recubiertas con un polímero hidrofílico que contiene múltiples ácidos carboxílicos para la fijación covalente de los ligandos. Existen diversos tamaños de partículas disponibles para diferentes usos y experimentos de investigación.
For Research Use Only. Not for use in diagnostic procedures.
Especificaciones
Excitación/emisión505/515 nm
Línea de productosFLUOSPHERES
Cantidad10 mL
Modificación de la superficieCarboxilato
ColorAmarillo-verde
Diámetro (métrico)1,0 μm
Para utilizar con (aplicación)Microscopía de fluorescencia
MaterialPoliestireno
Tipo de productoMicroesfera modificada con carboxilatos
Unit SizeEach
Contenido y almacenamiento
Almacenar en el refrigerador (2–8 °C) y proteger de la luz.

Preguntas frecuentes

I read that carboxylate-modified latex (CML) beads have a "fluffy coat" of carboxyl groups on their surface. What is meant by this?

The CML beads have a high density of carboxyl groups at the surface. The surface layer is quite hydrophilic and at the appropriate pH (pH>5), are charged; due to electrostatic repulsion, this type of surface is 3-dimensional and may be considered analogous to the fuzz on a tennis ball.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

I have some FluoSpheres polystyrene microspheres, with 20 nm diameter. They are aggregating a lot. What can I do about it?

The smaller the microspheres, the greater the propensity to aggregate. But the aggregation is not irreversible. Sonicate in a bath sonicator or vortex to disperse, just prior to use. You can also add a small concentration of Tween-20 or Triton X-100 (unless you are using them in a live-cell system).

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

I sonicated my 2.0 µm carboxylate-modified microspheres, as recommended, but saw foaming (bubbles) on top of the solution. Should I be concerned?

Use of a bath sonicator is recommended to help break up any aggregated microspheres. The foaming is from Tween-20, which is in the stock solution to help prevent aggregation. It is normal and expected to see bubbles from this. Do not use a probe sonicator, which would cause damage to the microspheres (as well as much more bubbling).

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

When does the warranty guarantee expire for FluoSpheres Carboxylated-Modified Microspheres?

FluoSpheres Carboxylate-Modified Microspheres (Cat. Nos. F8783, F8786, F8801, F8807, F8811, F8803, F8816, F8823, F20881, F10720) have a 1-year warranty guarantee, unless otherwise indicated on the Certificate of Analysis (COA).

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

What is the warranty for FluoSpheres microspheres?

The warranty period for FluoSpheres microspheres is 1-year from the date of shipment.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

View all FluoSpheres™ Carboxylate-Modified Microspheres FAQs

Citations & References (18)

Citations & References
Abstract
Transport in lymphatic capillaries. II. Microscopic velocity measurement with fluorescence photobleaching.
Authors:Berk DA, Swartz MA, Leu AJ, Jain RK
Journal:Am J Physiol
PubMed ID:8769769
'Despite its relevance to the physiology of lymph formation and propulsion, the instantaneous flow velocity in single lymphatic capillaries has not been measured to date. The method of fluorescence recovery after photobleaching (FRAP) was adapted for this purpose and used to characterize flow in the lymphatic capillaries in tail skin ... More
Quantitating intracellular transport of polyplexes by spatio-temporal image correlation spectroscopy.
Authors:Kulkarni RP, Wu DD, Davis ME, Fraser SE
Journal:Proc Natl Acad Sci U S A
PubMed ID:15897455
'Quantitatively understanding how nonviral gene delivery vectors (polyplexes) are transported inside cells is essential before they can be optimized for gene therapy and medical applications. In this study, we used spatio-temporal image correlation spectroscopy (ICS) to follow polymer-nucleic acid particles (polyplexes) of various sizes and analyze their diffusive-like and flow ... More
Fractal nature of regional ventilation distribution.
Authors:Altemeier WA, McKinney S, Glenny RW
Journal:J Appl Physiol
PubMed ID:10797111
'High-resolution measurements of pulmonary perfusion reveal substantial spatial heterogeneity that is fractally distributed. This observation led to the hypothesis that the vascular tree is the principal determinant of regional blood flow. Recent studies using aerosol deposition show similar ventilation heterogeneity that is closely correlated with perfusion. We hypothesize that ventilation ... More
Why molecules move along a temperature gradient.
Authors:Duhr S, Braun D
Journal:Proc Natl Acad Sci U S A
PubMed ID:17164337
'Molecules drift along temperature gradients, an effect called thermophoresis, the Soret effect, or thermodiffusion. In liquids, its theoretical foundation is the subject of a long-standing debate. By using an all-optical microfluidic fluorescence method, we present experimental results for DNA and polystyrene beads over a large range of particle sizes, salt ... More
Central nervous system microglial cell activation and proliferation follows direct interaction with tissue-infiltrating T cell blasts.
Authors:Sedgwick JD, Ford AL, Foulcher E, Airriess R
Journal:J Immunol
PubMed ID:9605131
'Central nervous system (CNS)-resident macrophages (microglia) normally express negligible or low level MHC class II, but this is up-regulated in graft-vs-host disease (GvHD), in which a sparse CNS T cell infiltrate is observed. Relative to microglia from the normal CNS, those from the GvHD-affected CNS exhibited a 5-fold up-regulation of ... More
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