Streptavidin is a protein made by the bacterium Streptomyces avidinii. It binds strongly to biotin and is known for lower nonspecific binding compared to avidin. This makes it useful in many lab tests and assays. It should be stored at 4°C to keep its stability and function.
Streptavidin is a protein that comes from a bacterium called Streptomyces avidinii. It is a white powder used in labs. It sticks tightly to biotin. This makes it useful in many tests and medical kits. Doctors and lab staff trust it because it is pure and stable. This gives clear results. It works well in ELISA, Western Blot, and other tests. Streptavidin from AARMEDICA is known for strong biotin hold and clean results.
Streptavidin is made to hold biotin. It does not mix with other parts. So, it keeps the test results neat. This is why labs choose it. It is not mixed with glycoproteins. That means it works in most types of tests. It does not lose strength. Even after heating or mixing with other liquids, it stays strong.
Streptavidin sticks to biotin-linked parts. This helps labs spot or measure what they need. Let us say a blood test needs to find a virus. The kit may use biotin and Streptavidin. One holds the other. This makes it easier to catch the virus marker. That is how many test kits use it.
Streptavidin can also help in DNA work. It holds DNA linked with biotin. So labs can read the sample better. It is very helpful in science studies.
Labs trust Streptavidin from AARMEDICA. Here’s why:
Our powder is made in a top-quality unit. It is safe and comes sealed in a vial. Each vial has full test data and batch info.
The powder is mixed with water before use. This makes a clear solution. It is then added to lab plates. When biotin is added, it sticks. Then a color change may happen. This tells the lab what is found. Use the right dose. Keep it in a cool dry place. If mixed, use soon. Do not keep the mix for long.
In short, Streptavidin is used to hold on to biotin and help labs test better.
Below is data showing how Streptavidin performs in lab work:
| Feature | Value / Result |
| Biotin binding rate | 4 per molecule |
| Biotin bond strength (Kd) | 10⁻¹⁴ mol/L |
| pH range | 5 to 10 |
| Heat stability | Up to 70°C |
| Glycoprotein content | None |
| Use in ELISA | Excellent |
| Storage condition | 2°C to 8°C (dry) |
This table shows Streptavidin is pure, stable, and ready to use in most test kits.
Source Ref: NCBI Protein Data
Streptavidin is made for lab use only. Do not take it by mouth or touch with bare hands. Wear gloves and lab coat. If it touches the eyes, rinse with water. Keep it away from food or open flames. It is not for home use. After opening the vial, seal it tight if not used fully. Do not reuse a mixed batch after 24 hours.
Store the powder in a cool, dry shelf. Do not freeze or keep near heat. Use a sealed box to block air.
If mixed with water, use within one day. Label the mix bottle with date and time. Check the color and clarity before use.
Never mix old and new batches. Always clean lab tools before and after using the product.
AAR Medica ensures Streptavidin is checked under:
Every batch comes with a report. This gives the lab team full details. All vials are sealed in clean rooms.
You can order different vial sizes. Common packs are:
| Pack Size | Uses |
| 1 mg vial | Small lab test |
| 5 mg vial | Routine ELISA work |
| 10 mg vial | Large batch or DNA work |
| Custom bulk | Research labs or industry use |
Vials are sealed, dry, and come with test data sheet.
Here is why labs pick us over others:
We make sure each pack is fresh and sealed. The box has full info. You can check purity and lot data.
Visit aarmedica.com to place an order. Choose size, fill the form, and we ship fast.
You can also contact us for bulk packs. Our team will guide you. You get proper papers with each batch. Streptavidin is a must in today’s lab kits. It holds biotin tight. It helps labs get clear test results. From ELISA to DNA kits, it works well.
If you need pure Streptavidin for your lab, AARMEDICA is your trusted source.
Order today at aarmedica.com or contact our team for a custom quote.
It is used to bind biotin in tests like ELISA and DNA kits.
Yes, it is safe if you use gloves and follow lab rules.
Keep it dry at 2°C to 8°C. Do not freeze it.
Yes, you can use PBS or water, but use it soon.
Yes, it is best for ELISA. It holds biotin very well.
You can order 1 mg, 5 mg, 10 mg, or a bulk pack.
It is made at an ISO-approved unit by AARMEDICA.
Yes, visit aarmedica.com and contact our support team.
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