Product S9059 was manufactured using passive conjugation of the STP with 10 nm gold colloid. It does not involve covalent or linker chemistry. The protein binds to the gold colloid through amino acid residues, including charge attraction (lysine), hydrophobic attraction (tryptophan), and sulfur bonding (cysteine).
S9059
Streptavidin−Gold from Streptomyces avidinii
~10 nm nominal (colloidal gold), buffered aqueous glycerol solution
About This Item
Recommended Products
conjugate
gold conjugate
Quality Level
form
buffered aqueous glycerol solution
concentration
~2.5 A520 units/mL
nominal
~10 nm (colloidal gold)
mean particle size
8-12 nm (monodisperse)
storage temp.
2-8°C
target post-translational modification
unmodified
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General description
Application
Physical form
Disclaimer
Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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Customers Also Viewed
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Can you provide details on how streptavidin is conjugated to gold nanoparticles? Specifically, I'd like to know if there is any covalent binding involved or if it's a passive binding process.
1 answer-
Helpful?
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I want to know the streptavidin concentration in this stock. (e.g. 0.5 mg/mL)
1 answer-
This information is reported as the protein concentration in the lot-specific Certificate of Analysis. A review of lots available in the last 7 years reveal a range of 11 - 11.6 ug/mL. Please see the link below to review a sample or lot-specific Certificate of Analysis:
https://www.sigmaaldrich.com/US/en/product/sigma/s9059#product-documentationHelpful?
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