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BZ and Gels

BZ and Gels. Y e Zhang B ing Xu’s Group. Videos of Self-oscillating Gels. Self-Walking Gel. Make Gel Oscillate in BZ. BZ components :. Oxidant. Catalyst. Acid. H 2 O. Malonic Acid (MA). BrO 3 -. Ru(bpy) 3. HNO 3 /H 2 SO 4. Build in. Self-Oscillating Gel. Gel. BZ.

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BZ and Gels

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  1. BZ and Gels Ye Zhang Bing Xu’s Group

  2. Videos of Self-oscillating Gels Self-Walking Gel

  3. Make Gel Oscillate in BZ BZ components : Oxidant Catalyst Acid H2O Malonic Acid (MA) BrO3- Ru(bpy)3 HNO3/H2SO4 Build in Self-Oscillating Gel Gel BZ oscillation

  4. Gel Types for Self-Oscillating Gel Crosslinked Thermo-sensitive Uncrosslinked Polymeric Hydrogel Nonthermo-sensitive Gel Supramolecular Hydrogel

  5. CrosslinkedThermosensitive Polymeric Self-oscillating Gels NIPAm-co-Ru(bpy)3 Equilibrium swelling ratio of (NIPAm-co-Ru(bpy)3) gel under different conditions of reduced Ru(II) state (in Ce(III) solution) and oxidized Ru(III) state (in Ce(IV) solution).

  6. Development of Self-oscillating Gels

  7. UncrosslinkedThermosensitive Polymeric Gels Acid Free Oxidant Free poly(NIPAm-co-Ru(bpy)y-co-MAPTAC) poly(NIPAm-co-Ru(bpy)y-co-AMPS) Acid and Oxidant Free poly(NIPAm-co-Ru(bpy)y-co-AMPS-co-MAPTAC)

  8. CrosslinkedNonthermosensitive Polymeric Gels 0.5Hz 50 oC <0.2% volume change 0.03Hz 20 oC <0.5%volume change 0.003Hz 20 oC 10-20% volume change Poly(VP-co-Ru(bpy)3) NIPAm-co-Ru(bpy)3 poly-vinylpyrrolidone (PVP)

  9. Control of Oscillation Behavior • Size-chemical waves Vs. volume change • Concentration of MA-switch on/off oscillation • Temperature-Oscillation frequency • Light illumination-Oscillation frequency • Molecular structure of catalyst

  10. Thermo-Sensitive Polymer Based Self-Oscillatory Materials

  11. Post Self-Assembly Crosslinkingof SupramolecularNanofbers 1 2

  12. SupramolecularHydrogel Condition Hydrogelator 4 mg Water 450 μL pH 7-8 Ru complex 0.5 mg 60X

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