Table 1.

Summary of molecular probes used in this study.

Molecule	Source	Abbreviation	MW [Da]	rs (Å)	Concentration in PBS [M]
Fluorescein	Sigma-Aldrich	Fluorescein	332	5.02a	10−4
Insulin-FITC labeled human	Sigma-Aldrich	Insulin	5,807	10.5b	4.3 × 10−5
Albumin from Bovine Serum (BSA), Alexa Fluor™ 488 conjugate	Molecular Probes	BSA	66,000	34.8c	3.8 × 10−6
Dextran, Fluorescein, 3000 MW	Molecular Probes	D3K	3,000	14d	1.7 × 10−4
Dextran, Fluorescein, 70000 MW	Molecular Probes	D70K	70,000	60d	1.8 × 10−5

^a[49];

^b[50];

^c[51];

^d[52]