A surface has a finite number of binding sites. A dilute solution gives them up a fixed amount of protein; what remains in solution is the difference. The fraction lost therefore rises as concentration falls. Polystyrene is strongly adsorptive; polypropylene less so; glass binds basic proteins through its negative surface. Low-binding plasticware reduces but does not eliminate the effect.
This is standard surface chemistry and applies to every protein, more or less.
Published methods for growth factors in culture typically specify a carrier protein in the diluent — bovine or human serum albumin at a fraction of a per cent — so that the surfaces are coated with the carrier and the growth factor stays in solution. Media manufacturers formulate accordingly. Where a defined, protein-free medium is required, recombinant albumin or other blocking agents are used.
These are descriptions of published practice, not instructions.
Because a 1 mg vial becomes very dilute solutions in use, and adsorption is one of the reasons two laboratories can report different results from the same lot. It is a property of the molecule and of surfaces, stated as such.
IGF-1 LR3 is supplied by REVIVE LAB UAE for laboratory research use only, with identity and purity documented for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.
| Format | Strength | Price | Availability |
|---|---|---|---|
| IGF-1 LR3 Pack | 1 mg | AED 650 | In stock |
Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.
A surface has a finite number of binding sites. A dilute solution gives them up a fixed amount of protein; what remains in solution is the difference. The fraction lost therefore rises as concentration falls. Polystyrene is strongly adsorptive; polypropylene less so; glass binds basic proteins through its negative surface. Low-binding plasticware reduces but does not eliminate the effect.
No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.
Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.
Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.