Volume 88, Issue 1, Pages (January 2005)

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Volume 88, Issue 1, Pages 535-547 (January 2005) Structural Characterization of Cationic Liposomes Loaded with Sugar-Based Carboranes Sandra Ristori, Julian Oberdisse, Isabelle Grillo, Alessandro Donati, Olivier Spalla Biophysical Journal Volume 88, Issue 1, Pages 535-547 (January 2005) DOI: 10.1529/biophysj.104.049080 Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 1 Neutron absorption coefficient versus theoretical (i.e., starting) content of glucosyl-carborane (a) and orthocarborane (b) in loaded liposomes. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 2 SAXS profile for DOTAP/DOPE pure liposome. Total lipid concentration: 4.2 10−1 mol/dm3. The best-fit parameters are reported in Table 1. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 3 SANS profile for DOTAP/DOPE pure liposome. Total lipid concentration: 4.2 10−1 mol/dm3. The best-fit parameters are reported in Table 1. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 4 SANS spectra of plain and OCB-loaded liposomes. Total lipid concentration was 4.2 10−1 mol/dm3 for all samples. The q2I(q) versus q-representation is able to evidence the different behavior of the curves in the low q-region. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 5 SAXS profiles for plain and carborane-loaded liposomes. The fitting of the pure liposome curve is also shown for comparison. Lipid content was 4.2 10−1 mol/dm3 for all samples. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 6 SAXS curves for liposomes loaded with different amounts of glucosyl-carborane and corresponding best fits. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 7 Experimental SAXS diagrams of liposomes containing LCOB, added before extrusion, at molar fractions ranging from 0 (pure liposomes) to 0.5. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Figure 8 SAXS spectra, with corresponding simulations, of co-vesicled and non-co-vesicled XLCOB=0.25 samples. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Scheme 1 Structure of the carborane cage (C2B10H12) in the ball-andstick representation. Hydrogen atoms have been omitted for clarity. Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions

Scheme 2 Sketch of a liposome global structure and length scattering density profile for x-ray scattering (left side) and neutron scattering (right side). Biophysical Journal 2005 88, 535-547DOI: (10.1529/biophysj.104.049080) Copyright © 2005 The Biophysical Society Terms and Conditions