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Colloid and Polymer Science

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25.04.2018 | Original Contribution

pH-responsive magnetic Pickering Janus emulsions

verfasst von: Rajarshi Roy Raju, Ferenc Liebig, Bastian Klemke, Joachim Koetz

Erschienen in: Colloid and Polymer Science | Ausgabe 6/2018

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Abstract

We report ultrasonically generated pH-responsive Pickering Janus emulsions of olive oil and silicone oil with controllable droplet size and engulfment. Chitosan was used as a pH-responsive emulsifier. The increase of pH from 2 to 6 leads to a transition from completely engulfed double emulsion droplets to dumbbell-shaped Janus droplets accompanied by a significant decrease of droplet diameter and a more homogeneous size distribution. The results can be elucidated by the conformational change of chitosan from a more extended form at pH 2 to a more flexible form at pH 4–5.

Magnetic responsiveness to the emulsion was attributed by dispersing superparamagnetic nanoparticles (Fe₃O₄ with diameter of 13 ± 2 nm) in the olive oil phase before preparing the Janus emulsion. Incorporation of magnetic nanoparticles leads to superior emulsion stability, drastically reduced droplet diameters, and opened the way to control movement and orientation of the Janus droplets according to an external magnetic field.

Vorheriger Artikel The tuning of the plasmon resonance of the metal nanoparticles in terms of the SERS effect

Nächster Artikel Influence of length and structure of aryl boronic acid crosslinkers on organogels with partially hydrolyzed poly(vinyl acetate)

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Hasinovic H, Friberg SE, Rong G (2011) A one-step process to a Janus emulsion. J Colloid Interface Sci 354:424–426. https://doi.org/10.1016/j.jcis.2010.10.004 CrossRef

Zhang Q, Savagatrup S, Kaplonek P, Seeberger PH, Swager TM (2017) Janus emulsions for the detection of bacteria. ACS Cent Sci 3:309–313. https://doi.org/10.1021/acscentsci.7b00021 CrossRef

Kovach I, Rumschöttel J, Friberg SE, Koetz J (2016) Janus emulsion mediated porous scaffold bio-fabrication. Colloids Surf B Biointerfaces 145:347–352. https://doi.org/10.1016/j.colsurfb.2016.05.018 CrossRef

Nagelberg S, Zarzar LD, Nicolas N, Subramanian K, Kalow JA, Sresht V, Blankschtein D, Barbastathis G, Kreysing M, Swager TM, Kolle M (2017) Reconfigurable and responsive droplet-based compound micro-lenses. Nat Commun 8:14673. https://doi.org/10.1038/ncomms14673 CrossRef

Ge L, Lu S, Han J, Guo R (2015) Anisotropic particles templated by Janus emulsion. Chem Commun 51:7432–7434. https://doi.org/10.1039/C5CC00935A CrossRef

Wei D, Ge L, Lu S, Li J, Guo R (2017) Janus particles templated by Janus emulsions and application as a Pickering emulsifier. Langmuir 33:5819–5828. https://doi.org/10.1021/acs.langmuir.7b00939 CrossRef

Kano M, Yanagisawa N, Takahashi Y, Kondo Y (2017) Fabrication of hollow polymer particles using emulsions of hydrocarbon oil/fluorocarbon oil/aqueous surfactant solution. J Fluor Chem 197:34–41. https://doi.org/10.1016/j.jfluchem.2017.02.008 CrossRef

Guzowski J, Korczyk PM, Jakiela S, Garstecki P (2012) The structure and stability of multiple micro-droplets. Soft Matter 8:7269. https://doi.org/10.1039/c2sm25838b CrossRef

Kovach I, Friberg SE, Koetz J (2017) A “perfect Janus emulsion”: thermodynamic factors. J Dispers Sci Technol 38:594–597. https://doi.org/10.1080/01932691.2016.1183502 CrossRef

10.

Friberg SE, Kovach I, Koetz J (2013) Equilibrium topology and partial inversion of Janus drops: a numerical analysis. ChemPhysChem 14:3772–3776. https://doi.org/10.1002/cphc.201300635 CrossRef

11.

Zarzar LD, Sresht V, Sletten EM, Kalow JA, Blankschtein D, Swager TM (2015) Dynamically reconfigurable complex emulsions via tunable interfacial tensions. Nature 518:520–524. https://doi.org/10.1038/nature14168 CrossRef

12.

Kovach I, Koetz J, Friberg SE (2014) Janus emulsions stabilized by phospholipids. Colloids Surf A Physiochem Eng Asp 441:66–71. https://doi.org/10.1016/j.colsurfa.2013.08.065 CrossRef

13.

Raju RR, Kosmella S, Friberg SE, Koetz J (2017) Pickering Janus emulsions and polyelectrolyte complex-stabilized Janus gels. Colloids Surf A Physicochem Eng Asp 533:241–248. https://doi.org/10.1016/j.colsurfa.2017.08.022 CrossRef

14.

Alison L, Rühs PA, Tervoort E, Teleki A, Zanini M, Isa L, Studart AR (2016) Pickering and network stabilization of biocompatible emulsions using chitosan-modified silica nanoparticles. Langmuir 32:13446–13457. https://doi.org/10.1021/acs.langmuir.6b03439 CrossRef

15.

Tang J, Quinlan PJ, Tam KC (2015) Stimuli-responsive Pickering emulsions: recent advances and potential applications. Soft Matter 11:3512–3529. https://doi.org/10.1039/C5SM00247H CrossRef

16.

Wu J, Ma G-H (2016) Recent studies of Pickering emulsions: particles make the difference. Small 12:4633–4648. https://doi.org/10.1002/smll.201600877 CrossRef

17.

Montagne F, Mondain-Monval O, Pichot C, Mozzanega H, Elaı̈ssari A (2002) Preparation and characterization of narrow sized (o/w) magnetic emulsion. J Magn Magn Mater 250:302–312. https://doi.org/10.1016/S0304-8853(02)00412-2 CrossRef

18.

Kaiser A, Liu T, Richtering W, Schmidt AM (2009) Magnetic capsules and Pickering emulsions stabilized by core—shell particles. Langmuir 25:7335–7341. https://doi.org/10.1021/la900401f CrossRef

19.

Zhou J, Qiao X, Binks BP, Sun K, Bai M, Li Y, Liu Y (2011) Magnetic Pickering emulsions stabilized by Fe 3 O 4 nanoparticles. Langmuir 27:3308–3316. https://doi.org/10.1021/la1036844 CrossRef

20.

Hamman JH (2010) Chitosan based polyelectrolyte complexes as potential carrier materials in drug delivery systems. Mar Drugs 8:1305–1322CrossRef

21.

Payet L, Terentjev EM (2008) Emulsification and stabilization mechanisms of O/W emulsions in the presence of chitosan. Langmuir 24:12247–12252. https://doi.org/10.1021/la8019217 CrossRef

22.

Liu H, Wang C, Zou S, Wei Z, Tong Z (2012) Simple, reversible emulsion system switched by pH on the basis of chitosan without any hydrophobic modification. Langmuir 28:11017–11024. https://doi.org/10.1021/la3021113 CrossRef

23.

Wang XY, Heuzey MC (2016) Chitosan-based conventional and Pickering emulsions with long-term stability. Langmuir 32:929–936. https://doi.org/10.1021/acs.langmuir.5b03556 CrossRef

24.

Liu X, Ma Z, Xing J, Liu H (2004) Preparation and characterization of amino–silane modified superparamagnetic silica nanospheres. J Magn Magn Mater 270:1–6. https://doi.org/10.1016/j.jmmm.2003.07.006 CrossRef

25.

Cao H, He J, Deng L, Gao X (2009) Fabrication of cyclodextrin-functionalized superparamagnetic Fe3O4/amino-silane core–shell nanoparticles via layer-by-layer method. Appl Surf Sci 255:7974–7980. https://doi.org/10.1016/j.apsusc.2009.04.199 CrossRef

26.

Hasinovic H, Boggs C, Friberg SE, Kovach I, Koetz J (2014) Janus emulsions from a one-step process; optical microscopy images. J Dispers Sci Technol 35:613–618. https://doi.org/10.1080/01932691.2013.801019 CrossRef

27.

Raymond L, Morin FG, Marchessault RH (1993) Degree of deacetylation of chitosan using conductometric titration and solid-state NMR. Carbohydr Res 246:331–336. https://doi.org/10.1016/0008-6215(93)84044-7 CrossRef

28.

Jiang X, Chen L, Zhong W (2003) A new linear potentiometric titration method for the determination of deacetylation degree of chitosan. Carbohydr Polym 54:457–463. https://doi.org/10.1016/j.carbpol.2003.05.004 CrossRef

29.

Tsaih ML, Chen RH (1999) Effects of ionic strength and pH on the diffusion coefficients and conformation of chitosans. J App Polym Sci 73:2041–2050. https://doi.org/10.1002/(SICI)1097-4628(19990906)73:10<2041::AID-APP22>3.0.CO;2-T CrossRef

30.

Frison R, Cernuto G, Cervellino A et al (2013) Magnetite-maghemite nanoparticles in the 5-15 nm range: correlating the core-shell composition and the surface structure to magnetic properties. A total scattering study. Chem Mater 25:4820–4827. https://doi.org/10.1021/cm403360f CrossRef

31.

Kim I, Worthen AJ, Johnston KP, DiCarlo DA, Huh C (2016) Size-dependent properties of silica nanoparticles for Pickering stabilization of emulsions and foams. J Nanopart Res 18:82. https://doi.org/10.1007/s11051-016-3395-0 CrossRef

32.

Binks BP, Lumsdon SO (2001) Pickering emulsions stabilized by monodisperse latex particles: effects of particle size. Langmuir 17:4540–4547. https://doi.org/10.1021/la0103822 CrossRef

Titel: pH-responsive magnetic Pickering Janus emulsions
verfasst von: Rajarshi Roy Raju
Ferenc Liebig
Bastian Klemke
Joachim Koetz
Publikationsdatum: 25.04.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: Colloid and Polymer Science / Ausgabe 6/2018
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI: https://doi.org/10.1007/s00396-018-4321-z

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