SKU: 44804378962

Human CD28 (T-cell-specific Surface Glycoprotein Cd28) ELISA Kit

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Description

Human CD28 (T-cell-specific Surface Glycoprotein Cd28) ELISA KitThe Human (CD28) T cell specific Surface Glycoprotein Cd28 ELISA Kit measures T Cell Specific Surface Glycoprotein Cd28 in samples. The plate has been pre coated with Human CD28 antibody. CD28 present in the sample is added and binds to antibodies coated on the wells. And then biotinylated Human CD28 Antibody is added and binds to CD28 in the sample. Then Streptavidin HRP is added and binds to the Biotinylated CD28 antibody. After incubation unbound

The Human (CD28) T-cell-specific Surface Glycoprotein Cd28 ELISA Kit measures T-Cell-Specific Surface Glycoprotein Cd28 in samples. The plate has been pre-coated with Human CD28 antibody. CD28 present in the sample is added and binds to antibodies coated on the wells. And then biotinylated Human CD28 Antibody is added and binds to CD28 in the sample. Then Streptavidin-HRP is added and binds to the Biotinylated CD28 antibody. After incubation unbound Streptavidin-HRP is washed away during a washing step. Substrate solution is then added and color develops in proportion to the amount of Human CD28. The reaction is terminated by addition of acidic stop solution and absorbance is measured at 450 nm.

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SKU: 44804378962

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4.6 ★★★★★
Based on 10 reviews
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Verified Purchase
Brandie Luvlee
Pawtucket, US
★★★★★ 5
Unique bouncing
Color: Green, Size: Medium (2-1/2 in (Pack of 2))
Outside of many my kids🐶 balls this one his best favorite for than the others as the bounce is high and unpredictable that makes it more intellectual and exciting for him
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
S
Verified Purchase
SH18750
Chelsea, US
★★★★★ 5
Pups Love
Color: Green, Size: Medium (2-1/2 in, (Pack of 1)), Color: Green, Size: Medium (2-1/2 in, (Pack of 1))
As you can see from the photo, my pup absolutely loves it! It’s the perfect size for him and for reference he’s 25 pounds. It’s got a nice weight to it, but it’s soft enough to be able to throw and not worry about damaging the walls. We just started playing with it today, but it seems very durable.
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Reviewed in the United States on March 27, 2026
R
Verified Purchase
Randy Brock
Lake Worth, US
★★★★★ 3
Fun for the first day, but just get the round balls.
Color: Green, Size: Medium (2-1/2 in (Pack of 2))
These balls do work, but they bouncy pretty much like a regular chuck it ball. They do NOT fit in the chuck it handheld ball launcher, which makes them a pain to throw. The green color also makes them somewhat challenging to find when the grass is long. That said, they do work as intended, and the dogs like them the same as all the other chuck it balls we own. As the person who had to throw them, my advice would be to just get the round balls that fit in the ball launcher. Durability: 9/10 they hood together better than the traditional balls without the hole (that crack down the seam over time). These have yet to crack despite the same wear and tear. Pros: durable, dogs like them, they do sink in water Cons: green color, hard to fit in handheld ball launcher
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Reviewed in the United States on June 3, 2023
S
Verified Purchase
Shopaholic
Natrona Heights, US
★★★★★ 5
Winner!
Color: Green, Size: Medium (2-1/2 in (Pack of 2))
I recently got the BOUNCY DOG BALL TOY for my fur baby, and I'm thrilled to say that it's a total winner! The best feature of this interactive dog toy is its erratic bounce, which keeps my pup on their toes and makes every playtime session full of surprises. The squared corners of the ball cause it to bounce every which way when thrown, making it an exciting challenge for my dog to catch. And because it's compatible with the Chuckit! Ball Launchers, we can play fetch for hours on end without ever getting bored. One thing I love about this fetch toy is its durability. It's made of tough rubber that can withstand even the most aggressive chewers, and it's super easy to clean after a long day of play. Plus, with two balls included, we always have a backup when one inevitably gets lost.
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Reviewed in the United States on February 24, 2023
D
Verified Purchase
Donna M.
Massapequa, US
★★★★★ 5
Great toy
Color: Blue
Great toy, too bad my Shih Tzu is afraid of it. I love the way the movement is subtle and random.
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Reviewed in the United States on May 21, 2026

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