Porcine NRG-4 (Neuregulin 4) ELISA Kit
SKU: 57175784497

Porcine NRG-4 (Neuregulin 4) ELISA Kit

Sale price$202.50 Regular price$225.00
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Porcine NRG-4 (Neuregulin 4) ELISA KitThe Porcine NRG 4 (Neuregulin 4) ELISA immunoassay kit uses the Sandwich ELISA principle. The micro ELISA plate provided in this kit has been pre coated with an antibody specific to Porcine NRG 4. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Porcine NRG 4 and Avidin Horseradish Peroxidase (HRP) conjugate are added successively to each micro

The Porcine NRG-4 (Neuregulin 4) ELISA immunoassay kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Porcine NRG-4. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Porcine NRG-4 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Porcine NRG-4, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Porcine NRG-4. You can calculate the concentration of Porcine NRG-4 in the samples by comparing the OD of the samples to the standard curve.

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SKU: 57175784497

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Gisela
Port Orchard, US
★★★★★ 5
Pelotitas de juguete
Muy bonita y mi perrita le encanto
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Reviewed in the United States on May 18, 2026
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carol
San Leandro, US
★★★★★ 5
They KNOW that latex smell and they are hard when you first get them!
My dogs love these! I just noticed I bought them 18 TIMES! 😧 I know it's the laytex smell and they try so hard to get that squeaker out! I'd yell "new toys" and throw 3 in different directions! I know they are expensive but my dogs and I have SO much fun 😊🐾🐾
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Reviewed in the United States on March 24, 2026
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Andreia
Alexandria, US
★★★★★ 5
My dog love it!
My dog's favorite toy, durable even with my dog trying to destroy it. not too noisy.
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Reviewed in the United States on October 6, 2025
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Mitch
Birmingham, US
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025
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Casey B
Waukegan, US
★★★★★ 5
Great for smaller dogs
Size: Small
These two balls are perfect for the smaller mouthed dog that loves to play fetch. These balls are not only super durable (lots of teeth biting), but float in the baby pool we use for our miniature dachshunds. The value here is much better than you’d find anywhere else. The noise, if bitten hard enough, was “low” at best. Easy to spot/find if overthrown. Will definitely buy again once these are in bad repair; so far, so good-love these for my fur babies!
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Reviewed in the United States on October 8, 2024

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