Science Advances
Supplementary Materials
This PDF file includes:
- fig. S1. Phase diagram of NaPSS/SiO2/H2O mixtures.
- fig. S2. Kinetics of composite capsule formation at initial CNaPSS, 1% (w/v).
- fig. S3. Deformation and area change of capsule obtained from 5% (w/v) NaPSS
+ 12% (w/v) silica droplet.
- fig. S4. Kinetics of composite capsule formation at initial CSiO2 , 12% (w/v).
- fig. S5. Corresponding minor axis Rminor data for Fig. 2C (main text).
- fig. S6. Evolution of droplet radius and deformation parameter with time during
extraction for various NaPSS/silica compositions.
- fig. S7. SEM showing the morphology of anisotropic composite NaPSS/silica capsule.
- fig. S8. SEM images showing the morphology and internal microstructure of polymer-nanoparticle
capsules as a function of NaPSS and SiO2 content.
- fig. S9. High-magnification SEM images showing the internal morphology of neat
polymer and composite polymer-nanoparticle capsules as a function of NaPSS and
SiO2 content.
- fig. S10. Wide-view SEM images showing neat polymer and composite polymernanoparticle
capsules as a function of NaPSS and SiO2 content.
- fig. S11. EDS analysis of neat and composite NaPSS/silica capsules.
- fig. S12. Dissolution of 3% (w/v) NaPSS and 3% (w/v) NaPSS + 10% (w/v) SiO2 capsules.
- fig. S13. Pulsatile release of nanoparticle clusters from selected active sites of
a capsule obtained from 1% (w/v) NaPSS + 10% (w/v) SiO2 initial droplet composition.
- fig. S14. Pulsatile release of nanoparticle clusters from specific sectors of
capsules obtained from 1% (w/v) NaPSS + 10% (w/v) SiO2 and 1% (w/v) NaPSS + 15% (w/v) SiO2 initial droplet composition.
- fig. S15. Analysis of release of nanoparticle clusters from a capsule obtained from
1% (w/v) NaPSS + 10% (w/v) SiO2 initial droplet composition.
- fig. S16. Analysis of release of nanoparticle clusters from a capsule obtained from
1% (w/v) NaPSS + 15% (w/v) SiO2 initial droplet composition.
- fig. S17. Formation and SEM images of internal microstructure of composite
NaPSS/SWCNT and NaPSS/Au capsules.
- fig. S18. Release of SWCNT and Au nanoparticles from composite NaPSS/SWCNT
and NaPSS/Au capsules.
- table S1. Viscosity measurements of NaPSS/SiO2/H2O mixtures.
- note S1. Microfluidic device fabrication.
- note S2. Phase diagram of NaPSS/SiO2/H2O mixtures.
- note S3. Estimation of Péclet number.
- note S4. Additional analysis for data shown in the main text.
- note S5. Additional SEM images of capsules.
- note S6. EDS of neat and composite NaPSS/silica capsules.
- note S7. Analysis of dissolution of neat and composite NaPSS/silica capsules
immersed in deionized water (pH 5 to 6).
- note S8. Spatiotemporal analysis of pulse release of nanoparticle clusters from
bicontinuous capsules immersed in deionized water (pH 5 to 6).
- note S9. Impact of payload type on composite capsule morphology and release profile.
Other Supplementary Material for this manuscript includes the following:
- movie S1 (.mp4 format). Video depicting the mechanism and kinetics of solvent extraction of 1% (w/v) NaPSS + 10% (w/v) SiO2 aqueous droplet of 250 μm radius in neat ethyl acetate over a period of 360 s (video 10 times faster).
- movie S2 (.avi format). Video showing the immersion of bicontinuous capsule above in deionized
water (pH 5 to 6), depicting the pulsed release of nanoparticle clusters, over
a time scale of 10,000 s (video 300 times faster).
- movie S3 (.avi format). As above, following immersion in deionized water with pH 9.35
over a time scale of 7000 s (video 200 times faster; air bubbles result from the
immersion of the dried capsule in water and are not a result of dissolution).
- movie S4 (.mp4 format). Video depicting the mechanism and kinetics of solvent extraction
of 1% (w/v) NaPSS + 0.3% (w/v) SWCNT aqueous droplet of ≃250 μm radius in neat ethyl
acetate over a period of 250 s (video 25 times faster).
- movie S5 (.mp4 format). Video depicting the mechanism and kinetics of solvent extraction of 1% (w/v) NaPSS + 0.025% (w/v) Au nanoparticle aqueous droplet of ≃250 μm radius in neat ethyl acetate over a period of 250 s (video 10 times faster).
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