Carboxyl modified blue fluorescent polystyrene microspheres
SKU: 92833970288

Carboxyl modified blue fluorescent polystyrene microspheres

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Description

Carboxyl modified blue fluorescent polystyrene microspheresProduct Name NameCarboxyl modified blue Monodisperse polystyrene microspheres Product Overview Blue fluorescent monodisperse polystyrene microspheres are prepared by adding a blue fluorescent dye that excites around 350 and emits around 420,and then modifying them with carboxyl groups during the preparation of polystyrene microspheres. Customizable size range of 20nm 5 m. These microspheres have a uniform particle size distribution, which enables them

Product Name

Name:Carboxyl modified blue Monodisperse polystyrene microspheres

Product Overview

Blue fluorescent monodisperse polystyrene microspheres are prepared by adding a blue fluorescent dye that excites around 350 and emits around 420,and then modifying them with carboxyl groups during the preparation of polystyrene microspheres. Customizable size range of 20nm-5 μ m. These microspheres have a uniform particle size distribution, which enables them to exhibit consistent performance in various applications. Fluorescent dyes are embedded inside the microspheres, effectively preventing fluorescence quenching and reducing the influence of environmental factors on fluorescence intensity.

Technical Parameter

Solvent: Water

Solid content: 1%

Product Features

Monodispersibility: The uniform particle size distribution of microspheres helps ensure consistency and reproducibility of experimental results.

Fluorescence characteristics: Contains highly fluorescent dyes that are embedded inside the microspheres, effectively preventing fluorescence quenching.

Adjustable particle size: By controlling the synthesis conditions, microspheres with different particle sizes can be prepared to meet different application requirements.

High stability: Microspheres have good chemical and physical stability and are suitable for use in various environments.

Optical performance: The fluorescence emission of fluorescent microspheres is stable and not affected by changes in external environmental media.

Application Fields

Biomedical research: Fluorescent polystyrene microspheres can be used for cell labeling, imaging, and as carriers for drug delivery systems in fields such as cell biology, molecular biology, and biochemistry.

Standard measurement: As an instrument calibration particle, used to calibrate analytical instruments and ensure measurement accuracy.

High throughput drug screening: As a signal carrier, it helps to quickly screen a large number of compounds and search for potential drug candidates.

Medical diagnosis: In areas such as immune analysis and detection, the surface of microspheres retains their original functional groups, which will not affect immune analysis and detection.

Tracer research: In fields such as phagocytosis research and pore size determination, fluorescent microspheres can be used as tracers to monitor cellular endocytosis processes.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 92833970288

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4.6 ★★★★★
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ProudPapa
Boise, US
★★★★★ 5
Sixty Bucks? Yep. And I'd buy another one.
Color: silver
OK, I had my doubts. Yes, the iLevel2 is highly-reviewed. And yes, it's really (really) important to have your laptop screen at eye level (get it? iLevel?) But spending 60 dollars on an adjustable laptop stand? Couldn't I just pile up a couple of old books for free? Well, as a contractor once told me when I made a really dumb suggestion, "You COULD do it that way..." The iLevel2's main virtue is that the angle/height adjustment knob is rock-solid, as is the platform. It's just an extremely well-made, solid product. And the adjustment knob, which is on a left-right track on the front of the product, allows you to dial in your laptop's screen height to the millimeter. Result: a totally-custom, ergonomically-friendly setup. Love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2024
R
Verified Purchase
Russ
Cuba, US
★★★★★ 3
Underwhelming
Color: silver
Too much hype. It just holds the laptop. Buy something cheaper. The slide adjuster isn’t useful to me at all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
B
Verified Purchase
beth
Lexington, US
★★★★★ 5
Useful but not perfect
Color: silver
Useful, but typing with laptop perched on it is unsteady. I use a separate keyboard.
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Reviewed in the United States on April 2, 2026
V
Verified Purchase
vics
Houston, US
★★★★★ 5
Why are people trying to type on a laptop stand?
Color: silver
So the overwhelmingly negative reviews you'll notice for this product specifically surround the "bounciness" of this stand when someone is typing on it—however what is confusing to me is how people are purchasing a laptop stand in theory to optimize their ergonomics, yet also stretching their arms out and elevating them to type on said laptop once it's raised. the point of a laptop riser/stand is to elevate the screen so that you can maintain a more natural posture. One would assume you have an external keyboard to use in conjunction with your laptop once you place it on a RISER, because the idea is to elevate your laptop as a SCREEN and then have a level/flat surface to type on, thereby alleviating any awkward hunching or neck strain looking down or anywhere not naturally eye-level. as it is, it's a perfectly functional and elegant laptop riser. I don't find myself wanting to adjust the height often if ever, but in the one or two instances I experimented with it, found no mechanical issues. It looks nice with Apple hardware and allows me to have my laptop's screen flush with the bottom edge of my additional external monitor, so it serves my purposes well. for people complaining about how it bounces when they type on it ... STOP typing on your laptop's keyboard when you have it elevated on a riser! this defeats the purpose and probably also makes your arms tired—buy an external keyboard!
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Reviewed in the United States on December 2, 2020
J
Verified Purchase
Jack Leitner
Waukegan, US
★★★★★ 5
Nice Valet tray with Qi standard charger USB-C
Color: Best Dad-brown
I like this valet tray. I'm not fond of the message in the main compartment of the valet tray. It means they expect someone to buy it for their dad. I bought it for myself. What I like is the Qi standard compatibility of the wireless charger. It has many advantages over the wireless chargers that are sold. Most are round circles, so your phone teeters on the odd design. Some want to attach to my phone with some magnetic gimmickry. This valet tray takes a different approach. It has a built-in Qi standard wireless charger that's in a rectangular compartment. The USB-C wire that is USB-C at both ends is faster; that's the advantage of USB-C. It carries more power and higher data speed. But the Qi standard disables charging when the phone is at 100%. This avoids overcharging. It's an excellent design. The charging port is built-in to the side of the valet tray. Just the placement of the indicator light is under the phone. A fully charged phone doesn't trigger charging. It avoids overcharging. There is drawback the shallow USB port doesn't allow proper seating of USB C plugs this puts a lot of weight on a barely plugged wire.
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Reviewed in the United States on September 19, 2025

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