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Documenti fondamentali

P3543

Sigma-Aldrich

Poly-L-lysine–FITC Labeled

mol wt 15,000-30,000

Sinonimo/i:

Fluorescein Labeled Poly-L-Lysine

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About This Item

Numero MDL:
MFCD00165427
Codice UNSPSC:
12352209
NACRES:
NA.26
Prezzi e disponibilità al momento non sono disponibili

Stato

powder

PM

precursor poly-L-lysine • HBr 15,000-30,000
 15,000-30,000

Grado di funzionalizzazione

0.003-0.01 mol FITC per mol lysine monomer

Colore

yellow to orange

Temperatura di conservazione

−20°C

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Altre note

For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number
0000334520
0000334507
0000321146
0000301871
0000258513

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Pitkanen L, Ruponen M, et al.
Pharmacological Research, 20, 576-583 (2003)
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The AAPS journal, 6(3), e25-e25 (2005-03-12)
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Retinal pigment epithelium (RPE) maintains the function of photoreceptors and eyesight and is an important target for gene delivery. Since in some diseases RPE cells proliferate uncontrollably, we investigated the role of cell cycle in non-viral gene delivery into a

Articoli

Poly(Amino Acid) Block Copolymers for Drug Delivery and other Biomedical Applications

Humankind has utilized protein materials throughout its existence, starting with the use of materials such as wool and silk for warmth and protection from the elements and continuing with the use of recombinant DNA techniques to synthesize proteins with unique and useful properties.

Questions

1–2 of 2 Questions  

  1. ow do you determine the peptide concentration of a small scoop in solution? I am reading the absorbance at 495nm to read the fluorophore but I don't know how to convert that Absorbance value to a meaningful mg/mL or molarity concentration without an e.c.

    1 answer

    1. The viscosity average molecular weight (Mv) is determined for each lot of this product. However, there is a distribution of molecular weights around that Mv. As a result, the molar concentration is not applicable. The typical degree of polymerization (DP) for this material is approximately 100 and the typical degree of substitution (moles of FITC per mole of lysine) is approximately 0.007 or 7 per 1000; essentially 7 of 10 Poly-L-Lysine molecules contain one FITC label. The concentration of the solution may be most accurately determined by precisely weighing the sample and precisely determining the volume, so that the sample may be reported as mg/mL. The degree of substitution and degree of polymerization are lot specific and reported in the product Certificate of Analysis. Please see the link below to review a sample of lot specific Certificate:
      https://www.sigmaaldrich.com/product/sigma/p3543#product-documentation

      Helpful?

  2. How much FITC quantity or weight percentage is present per mg of the mixture? If 10 mg of the product is weighed out, what portion of the weight corresponds to the PLL?

    1 answer

    1. The FITC quantity present per mg of the mixture is 0.016 mg, which corresponds to approximately 1.6% of the weight. If 10 mg of the product is weighed out, the portion of the weight corresponding to the PLL is approximately 9.84 mg.

      Helpful?

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