1
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Alqubelat RS, Menzorova YA, Mironov MA. Cage-like microstructures via sequential Ugi reactions in aqueous emulsions. Beilstein J Org Chem 2024; 20:2078-2083. [PMID: 39189004 PMCID: PMC11346303 DOI: 10.3762/bjoc.20.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 08/06/2024] [Indexed: 08/28/2024] Open
Abstract
Cage-like microstructures were obtained in two steps by sequential Ugi reactions. At the first stage, submicron colloidal particles based on carboxymethylcellulose and chitosan with a domain structure were obtained in an aqueous suspension. In the second stage, the Ugi reaction was carried out on the surface of the Pickering emulsions with toluene. Removal of toluene and redissolution in water resulted in colloidosomes with large holes on the surface. Varying the cross-link density during the Ugi reaction made it possible to obtain structures with different hole sizes.
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Affiliation(s)
- Rita S Alqubelat
- Department of Technology for Organic Synthesis, Ural Federal University, Mira St. 19, Ekaterinburg, 620002, Russian Federation
| | - Yaroslava A Menzorova
- Department of Technology for Organic Synthesis, Ural Federal University, Mira St. 19, Ekaterinburg, 620002, Russian Federation
| | - Maxim A Mironov
- Department of Technology for Organic Synthesis, Ural Federal University, Mira St. 19, Ekaterinburg, 620002, Russian Federation
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2
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Yetkin M, Wani YM, Kritika K, Howard MP, Kappl M, Butt HJ, Nikoubashman A. Structure Formation in Supraparticles Composed of Spherical and Elongated Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1096-1108. [PMID: 38153401 DOI: 10.1021/acs.langmuir.3c03410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
We studied the evaporation-induced formation of supraparticles from dispersions of elongated colloidal particles using experiments and computer simulations. Aqueous droplets containing a dispersion of ellipsoidal and spherical polystyrene particles were dried on superamphiphobic surfaces at different humidity values that led to varying evaporation rates. Supraparticles made from only ellipsoidal particles showed short-range lateral ordering at the supraparticle surface and random orientations in the interior regardless of the evaporation rate. Particle-based simulations corroborated the experimental observations in the evaporation-limited regime and showed an increase in the local nematic ordering as the diffusion-limited regime was reached. A thin shell of ellipsoids was observed at the surface when supraparticles were made from binary mixtures of ellipsoids and spheres. Image analysis revealed that the supraparticle porosity increased with an increasing aspect ratio of the ellipsoids.
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Affiliation(s)
- Melis Yetkin
- Department of Physics at Interfaces, Max-Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Yashraj M Wani
- Institute of Physics, Johannes Gutenberg University of Mainz, Staudingerweg 7, Mainz 55128, Germany
| | - Kritika Kritika
- Institute of Physics, Johannes Gutenberg University of Mainz, Staudingerweg 7, Mainz 55128, Germany
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
- Institut für Theoretische Physik, Technische Universität Dresden, Dresden 01069, Germany
| | - Michael P Howard
- Department of Chemical Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Michael Kappl
- Department of Physics at Interfaces, Max-Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Hans-Jürgen Butt
- Department of Physics at Interfaces, Max-Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Arash Nikoubashman
- Institute of Physics, Johannes Gutenberg University of Mainz, Staudingerweg 7, Mainz 55128, Germany
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
- Institut für Theoretische Physik, Technische Universität Dresden, Dresden 01069, Germany
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3
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Wang B, Yin B, Yu H, Zhang Z, Wang G, Shi S, Gu X, Yang W, Tang BZ, Russell TP. Interfacial Assembly and Jamming of Soft Nanoparticle Surfactants into Colloidosomes and Structured Liquids. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54287-54292. [PMID: 36440677 DOI: 10.1021/acsami.2c13414] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nanoparticle surfactant (NPS) offers a powerful strategy to generate all-liquid constructs that integrate the inherent properties of the NPs into 3D architectures. Here, using the co-assembly of fluorescent polymeric nanoparticles and amine-functionalized polyhedral oligomeric silsesquioxane, the assembly and jamming behavior of a new type of NPS at the oil-water interface is uncovered. Unlike "solid" inorganic nanoparticles, "soft" polymeric nanoparticles can reorganize when jammed, leading to a relaxation and deformation of the interfacial assemblies, for example, the 3D printed sugar-coated haw stick-like liquid tubules. With NPS serving as emulsifiers, stable Pickering emulsions are prepared that can be converted into robust colloidosomes with pH responsiveness, showing numerous potential applications for encapsulation and controlled release.
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Affiliation(s)
- Beibei Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bangqi Yin
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hao Yu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhao Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guan Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shaowei Shi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinggui Gu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Wantai Yang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Thomas P Russell
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
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4
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Jiang X, Martens HJ, Shekarforoush E, Muhammed MK, Whitehead KA, Arneborg N, Risbo J. Multi-species colloidosomes by surface-modified lactic acid bacteria with enhanced aggregation properties. J Colloid Interface Sci 2022; 622:503-514. [DOI: 10.1016/j.jcis.2022.04.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/11/2022] [Accepted: 04/23/2022] [Indexed: 10/18/2022]
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5
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Owoseni O, Su Y, Raghavan S, Bose A, John VT. Hydrophobically modified chitosan biopolymer connects halloysite nanotubes at the oil-water interface as complementary pair for stabilizing oil droplets. J Colloid Interface Sci 2022; 620:135-143. [PMID: 35421750 DOI: 10.1016/j.jcis.2022.03.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/21/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
The integration of cationic and hydrophobic functionalities into hydrophobically modified chitosan (HMC) biopolymer facilitates complementary emulsion stabilization with negatively charged halloysite clay nanotubes (HNT). Oil-in-water emulsions with smaller droplet sizes and significantly improved interfacial resistance to droplet coalescence are obtained on complementary emulsion stabilization by HNT and HMC compared to the individual emulsifiers alone. Contact angle measurements shows that the adsorption of the cationic HMC onto the negatively charged HNT modifies the surface wettability of the nanotubes, facilitating the attachment of the nanotubes to the oil-water interface. High resolution cryo-SEM imaging reveals that free HMC chains locks the nanotubes together at the oil-water interface, creating a high barrier to droplet coalescence. The emulsion stability is an order of magnitude higher for conditions in which the aqueous HNT dispersion is stabilized by the HMC compared to conditions where the negatively charged HNT is strongly flocculated by the cationic HMC. The hydrophobic interaction between HMC chains, insertion of HMC hydrophobes into the oil phase and electrostatic interactions between HMC and HNT are proposed as key mechanisms driving the increased emulsion stability. For potential application as a dispersant system for crude oil spill treatment, the nanotubular morphology of HNT was further exploited for the encapsulation of the water-insoluble surfactant, sorbitan monooleate (Span 80). The HMC and HNT sterically strengthens the oil-water interfacial layer while release of the Span 80 surfactant from the HNT lumen lowers the oil-water interfacial tension. The concepts advanced here are relevant in the development of environmentally-benign dispersants for oil spill remediation.
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Affiliation(s)
- Olasehinde Owoseni
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, United States
| | - Yang Su
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, United States
| | - Srinivasa Raghavan
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, United States
| | - Arijit Bose
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881, United States
| | - Vijay T John
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, United States.
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6
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Biocatalytic self-assembled synthetic vesicles and coacervates: From single compartment to artificial cells. Adv Colloid Interface Sci 2022; 299:102566. [PMID: 34864354 DOI: 10.1016/j.cis.2021.102566] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 12/18/2022]
Abstract
Compartmentalization is an intrinsic feature of living cells that allows spatiotemporal control over the biochemical pathways expressed in them. Over the years, a library of compartmentalized systems has been generated, which includes nano to micrometer sized biomimetic vesicles derived from lipids, amphiphilic block copolymers, peptides, and nanoparticles. Biocatalytic vesicles have been developed using a simple bag containing enzyme design of liposomes to multienzymes immobilized multi-vesicular compartments for artificial cell generation. Additionally, enzymes were also entrapped in membrane-less coacervate droplets to mimic the cytoplasmic macromolecular crowding mechanisms. Here, we have discussed different types of single and multicompartment systems, emphasizing their recent developments as biocatalytic self-assembled structures using recent examples. Importantly, we have summarized the strategies in the development of the self-assembled structure to improvise their adaptivity and flexibility for enzyme immobilization. Finally, we have presented the use of biocatalytic assemblies in mimicking different aspects of living cells, which further carves the path for the engineering of a minimal cell.
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7
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He T, Jokerst JV. Structured micro/nano materials synthesized via electrospray: a review. Biomater Sci 2020; 8:5555-5573. [PMID: 32985632 DOI: 10.1039/d0bm01313g] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The development of synthetic methods for micro/nano materials with precisely controlled structures, morphologies, and local compositions is of great importance for the advancement of modern nanotechnology. The electrospray method is a "platform" approach for the preparation of a broad range of micro-/nanostructures; electrospray is simple and scalable. This review summarizes recent research on the micro-/nanostructures prepared via the electrospray route. These include spherical structures (e.g. simple, porous, Janus, and core-shell particles), non-spherical structures (e.g. red blood cell-like and spindle-like particles, multi-compartment microrods, 2D holey nanosheets, and nanopyramids), and assembled structures. The experimental details, underlying physical/chemical principles, and key benefits of these structures are comprehensively discussed. The effects and importance of nozzle design, properties of feeding solutions (e.g. concentration of solute, polymer additives, solvent/nonsolvent combinations), working environment (e.g. temperature and humidity), and types of collection media are highlighted.
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Affiliation(s)
- Tengyu He
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093, USA.
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8
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Singh N, Ahmed S, Fakim A, Qutub S, Alahmed O, El Tall O, Shekhah O, Eddaoudi M, Khashab NM. In situ assembled ZIF superstructures via an emulsion-free soft-templating approach. Chem Sci 2020; 11:11280-11284. [PMID: 34094369 PMCID: PMC8162773 DOI: 10.1039/d0sc04513f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 09/16/2020] [Indexed: 12/24/2022] Open
Abstract
Assembling well-defined MOF superstructures remains challenging as it requires easily removable hard templates or readily available immiscible solutions for an emulsion-based soft-template approach. In this work, a single-step emulsion-free soft templating approach is reported to spontaneously prepare hollow ZIF-8 and ZIF-67 colloidosomes with no further purification. These superstructures can load different enzymes regardless of the size and charge with a high encapsulation efficiency of 99%. We envisage that this work will expand the repertoires of MOF superstructures by the judicious selection of precursors and the reaction medium.
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Affiliation(s)
- Namita Singh
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Sana Ahmed
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Aliyah Fakim
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Somayah Qutub
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Othman Alahmed
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Omar El Tall
- KAUST Core Labs, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Osama Shekhah
- Prof. Mohamed Eddaoudi Functional Materials Design, Discovery & Development Research Group (FMD3) Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Mohamed Eddaoudi
- Prof. Mohamed Eddaoudi Functional Materials Design, Discovery & Development Research Group (FMD3) Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Niveen M Khashab
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
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9
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Stasse M, Laurichesse E, Ribaut T, Anthony O, Héroguez V, Schmitt V. Formulation of concentrated oil-in-water-in-oil double emulsions for fragrance encapsulation. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124564] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Bielas R, Surdeko D, Kaczmarek K, Józefczak A. The potential of magnetic heating for fabricating Pickering-emulsion-based capsules. Colloids Surf B Biointerfaces 2020; 192:111070. [PMID: 32361373 DOI: 10.1016/j.colsurfb.2020.111070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 11/22/2022]
Abstract
Pickering emulsions (particle-stabilized emulsions) have been widely explored due to their potential applications, one of which is using them as precursors for the formation of colloidal capsules that could be utilized in, among others, the pharmacy and food industries. Here, we present a novel approach to fabricating such colloidal capsules by using heating in the alternating magnetic field. When exposed to the alternating magnetic field, magnetic particles, owing to the hysteresis and/or relaxation losses, become sources of nano- and micro-heating that can significantly increase the temperature of the colloidal system. This temperature rise was evaluated in oil-in-oil Pickering emulsions stabilized by both magnetite and polystyrene particles. When a sample reached high enough temperature, particle fusion caused by glass transition of polystyrene was observed on surfaces of colloidal droplets. Oil droplets covered with shells of fused polystyrene particles were proved to be less susceptible to external stress, which can be evidence of the successful formation of capsules from Pickering emulsion droplets as templates.
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Affiliation(s)
- Rafał Bielas
- Department of Acoustics, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Dawid Surdeko
- Department of Acoustics, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland; Faculty of Science and Technology, University of Twente, P.O. BOX 217, 7500 AE Enschede, The Netherlands
| | - Katarzyna Kaczmarek
- Department of Acoustics, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Arkadiusz Józefczak
- Department of Acoustics, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland.
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11
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Kubiak T, Banaszak J, Józefczak A, Rozynek Z. Direction-Specific Release from Capsules with Homogeneous or Janus Shells Using an Ultrasound Approach. ACS APPLIED MATERIALS & INTERFACES 2020; 12:15810-15822. [PMID: 32186360 DOI: 10.1021/acsami.9b21484] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A variety of approaches have been developed to release contents from capsules, including techniques that use electric or magnetic fields, light, or ultrasound as a stimulus. However, in the majority of the known approaches, capsules are disintegrated in violent way and the liberation of the encapsulated material is often in a random direction. Thus, the controllable and direction-specific release from microcapsules in a simple and effective way is still a great challenge. This greatly limits the use of microcapsules in applications where targeted and directional release is desirable. Here, we present a convenient ultrasonic method for controllable and unidirectional release of an encapsulated substance. The release is achieved by using MHz-frequency ultrasound that enables the inner liquid stretching, which imposes mechanical stress on the capsule's shell. This leads to the puncturing of the shell and enables smooth liberation of the liquid payload in one direction. We demonstrate that 1-4.3 MHz acoustic waves with the intensity of a few W/cm2 are capable of puncturing of particle capsules with diameters ranging from around 300 μm to 5 mm and the release of the encapsulated liquid in a controlled manner. Various aspects of our route, including the role of the capsule size, ultrasound wavelength, and intensity in the performance of the method, are studied in detail. We also show that the additional control of the release can be achieved by using capsules having patchy shells. The presented method can be used to facilitate chemical reactions in micro- and nanolitre droplets and various small-scale laboratory operations carried in bulk liquids in microenvironment. Our results may also serve as an entry point for testing other uses of the method and formulation of theoretical modeling of the presented ultrasound mechanism.
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Affiliation(s)
- Tomasz Kubiak
- Institute of Acoustics, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
- Hipolit Cegielski State University of Applied Sciences, Stefana Wyszyńskiego 38, 62-200 Gniezno, Poland
| | - Joanna Banaszak
- Institute of Acoustics, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Arkadiusz Józefczak
- Institute of Acoustics, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Zbigniew Rozynek
- Institute of Acoustics, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
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12
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Comparision of heteroaggregation, layer-by-layer and directly mixing techniques on the physical properties and in vitro digestion of emulsions. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.04.034] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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13
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14
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Lošdorfer Božič A, Čopar S. Spherical structure factor and classification of hyperuniformity on the sphere. Phys Rev E 2019; 99:032601. [PMID: 30999521 DOI: 10.1103/physreve.99.032601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Indexed: 06/09/2023]
Abstract
Understanding how particles are arranged on the surface of a sphere is not only central to numerous physical, biological, soft matter, and materials systems but also finds applications in computational problems, approximation theory, and analysis of geophysical and meteorological measurements. Objects that lie on a sphere experience constraints that are not present in Euclidean (flat) space and that influence both how the particles can be arranged as well as their statistical properties. These constraints, coupled with the curved geometry, require a careful extension of quantities used for the analysis of particle distributions in Euclidean space to distributions confined to the surface of a sphere. Here, we introduce a framework designed to analyze and classify structural order and disorder in particle distributions constrained to the sphere. The classification is based on the concept of hyperuniformity, which was first introduced 15 years ago and since then studied extensively in Euclidean space, yet has only very recently been considered also for spherical surfaces. We employ a generalization of the structure factor on the sphere, related to the power spectrum of the corresponding multipole expansion of particle density distribution. The spherical structure factor is then shown to couple with cap number variance, a measure of density variations at different scales, allowing us to analytically derive different forms of the variance pertaining to different types of distributions. Based on these forms, we construct a classification of hyperuniformity for scale-free particle distributions on the sphere and show how it can be extended to include other distribution types as well. We demonstrate that hyperuniformity on the sphere can be defined either through a vanishing spherical structure factor at low multipole numbers or through a scaling of the cap number variance-in both cases extending the Euclidean definition, while at the same time pointing out crucial differences. Our work thus provides a comprehensive tool for detecting global, long-range order on spheres and for the analysis of spherical computational meshes, biological and synthetic spherical assemblies, and ordering phase transitions in spherically distributed particles.
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Affiliation(s)
- Anže Lošdorfer Božič
- Department of Theoretical Physics, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - Simon Čopar
- Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia
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15
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Eskhan A, Banat F, Abu Haija M, Al-Asheh S. Synthesis of Mesoporous/Macroporous Microparticles Using Three-Dimensional Assembly of Chitosan-Functionalized Halloysite Nanotubes and Their Performance in the Adsorptive Removal of Oil Droplets from Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:2343-2357. [PMID: 30626190 DOI: 10.1021/acs.langmuir.8b04167] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Halloysite nanotubes (HNTs) were assembled into mesoporous/macroporous microparticles (c-g-HNTs MPs) using Pickering template-assisted approach. To unravel the stabilization mechanism in Pickering emulsion form, several emulsions and microparticles were prepared at various conditions and visualized using confocal laser scanning microscopy. The prepared c-g-HNTs MPs were used to treat emulsified oil solutions resulting in a maximum removal efficiency of 94.47%. The kinetics data of oil adsorption onto c-g-HNTs MPs was best fitted by the pseudo-second-order kinetic model ( R2 = 0.9983). The maximum monolayer adsorption capacity of oil onto c-g-HNTs MPs as predicted by the multilayer Brunauer-Emmett-Teller model was found to be 788 mg/g. Compared with pristine HNTs, c-g-HNTs MPs exhibited higher self-settleability rates in aqueous solutions as well as in emulsified oil solutions, demonstrating their candidacy for practical water treatment applications. The c-g-HNTs MPs were repeatedly used for five adsorption-desorption cycles with minimal losses noticed in their performance.
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Affiliation(s)
- Asma Eskhan
- Department of Chemical Engineering , Khalifa University of Science and Technology, SAN Campus , P.O. Box 2533, Abu Dhabi , United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering , Khalifa University of Science and Technology, SAN Campus , P.O. Box 2533, Abu Dhabi , United Arab Emirates
| | - Mohammad Abu Haija
- Department of Chemistry , Khalifa University of Science and Technology, SAN Campus , P.O. Box 2533, Abu Dhabi , United Arab Emirates
| | - Sameer Al-Asheh
- Department of Chemical Engineering , American University of Sharjah , P.O. Box 26666, Sharjah , United Arab Emirates
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16
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Han X, Zhang H, Zheng J. Ultrasensitive Electrochemical Immunoassay Based on Cargo Release from Nanosized PbS Colloidosomes. Anal Chem 2019; 91:2224-2230. [DOI: 10.1021/acs.analchem.8b04807] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiujuan Han
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Hongfang Zhang
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Jianbin Zheng
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
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17
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Xia C, Luo Y. The tough microcapsules of acrylic acid-styrene-isoprene-styrene quadrablock copolymer shell via Pickering emulsion technique. J Appl Polym Sci 2018. [DOI: 10.1002/app.46700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chunmiao Xia
- The State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Yingwu Luo
- The State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
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18
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Hong CS, Park JH, Lee S, Rhoo KY, Lee JT, Paik SR. Fabrication of Protease-Sensitive and Light-Responsive Microcapsules Encompassed with Single Layer of Gold Nanoparticles by Using Self-Assembly Protein of α-Synuclein. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26628-26640. [PMID: 30052414 DOI: 10.1021/acsami.8b07661] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A bioapplicable cargo delivery system requires the following characteristics of biocompatibility, in vivo stability, and selective cargo release at target sites. We introduce herein the microcapsules enclosed with a single-layered shell of gold nanoparticles (AuNPs) mutually connected by an amyloidogenic protein of α-synuclein (αS). The microcapsules were fabricated by producing oil(chloroform)-in-water Pickering emulsions of the αS-encapsulated AuNPs and subsequent molecular engagement of the outlying αS molecules, leading to formidable β-sheet formation in the presence of chloroform. The wrinkled skin of microcapsules obtained after evaporation of the internal chloroform also reflects robustness of the protein-protein interaction, which was experimentally confirmed by their rheological stability. For the emulsions loaded with rhodamine 6G, their dye release was demonstrated to be controlled by proteases. Along with their photothermal activity, the AuNP-containing microcapsules and their proteolyzed fragments were therefore suggested to be capable of eliminating aberrant cells in the protease-activated pathologically affected areas. Orthogonal cargo loading was also achieved by encapsulating both hydrophobic and hydrophilic substances either directly dissolved in chloroform or prepackaged in inverted micelles, respectively. Microcapsule's functionality was further expanded by localizing quantum dots, magnetic nanoparticles, and antibodies inside or on the surface of the microcapsules. Taken together, these multimodal AuNP microcapsules are suggested to be an ideal cargo carrier system, which could be employed in not only biomedical theranostic applications as they exhibit structural robustness, specific targeting, triggered release, and photothermal activity but also sensor development in general.
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Affiliation(s)
- Chul-Suk Hong
- School of Chemical and Biological Engineering, Institute of Chemical Processes, College of Engineering , Seoul National University , Seoul 08826 , Korea
| | - Jae Hyung Park
- School of Chemical and Biological Engineering, Institute of Chemical Processes, College of Engineering , Seoul National University , Seoul 08826 , Korea
| | - Soonkoo Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, College of Engineering , Seoul National University , Seoul 08826 , Korea
| | - Kun Yil Rhoo
- School of Chemical and Biological Engineering, Institute of Chemical Processes, College of Engineering , Seoul National University , Seoul 08826 , Korea
| | - Jong Tak Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, College of Engineering , Seoul National University , Seoul 08826 , Korea
| | - Seung R Paik
- School of Chemical and Biological Engineering, Institute of Chemical Processes, College of Engineering , Seoul National University , Seoul 08826 , Korea
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19
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Sun Q, Du Y, Hall EAH, Luo D, Sukhorukov GB, Routh AF. A fabrication method of gold coated colloidosomes and their application as targeted drug carriers. SOFT MATTER 2018; 14:2594-2603. [PMID: 29464257 DOI: 10.1039/c7sm02485a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Colloidosomes have attracted considerable attention in recent years because of their potential applications in a range of industries, such as food, bioreactors and medicine. However, traditional polymer shell colloidosomes leak low molecular weight encapsulated materials due to their intrinsic shell permeability. Here, we report aqueous core colloidosomes coated with a gold shell, which make the capsules impermeable. The shells can be ruptured using ultrasound. The gold coated colloidosomes are prepared by making an aqueous core capsule with a polymer shell and then adding HAuCl4, surfactant and l-ascorbic acid to form a second shell. We propose to use the capsules as drug carriers. The gold coated colloidosomes demonstrate a low cytotoxicity and after triggering, both encapsulated doxorubicin and broken gold fragments kill cancer cells. In addition, we set up a targeting model by modifying the gold shell colloidosomes using 4,4'-dithiodibutyric acid and crosslinking them with proteins-rabbit immunoglobulin G (IgG). Label-free surface plasmon resonance was used to test the specific targeting of the functional gold shells with rabbit antigen. The results demonstrate that a new type of functional gold coated colloidosome with non-permeability, ultrasound sensitivity and immunoassay targeting could be applied to many medical applications.
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Affiliation(s)
- Qian Sun
- Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, CB3 0AS, Cambridge, UK.
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20
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Zhang X, Ren S, Han T, Hua M, He S. New organic–inorganic hybrid polymers as Pickering emulsion stabilizers. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.01.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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22
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Sun Q, Gao H, Sukhorukov GB, Routh AF. Silver-Coated Colloidosomes as Carriers for an Anticancer Drug. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32599-32606. [PMID: 28880528 DOI: 10.1021/acsami.7b11128] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Small drug molecules are widely developed and used in the pharmaceutical industry. In the past few years, loading and delivering such molecules using polymer-shell colloidosomes has attracted interest. Traditional polymer capsules fail to encapsulate low-molecular-weight materials for long times, since they are inherently porous and permeable for small molecules. In this paper, we report a method for encapsulating an anticancer drug with small molecule weight, for cell viability tests. The silver-coated colloidosomes are prepared by making an aqueous core capsule with a polymer shell and then adding AgNO3, surfactant, and l-ascorbic acid to form a second shell. The capsules are impermeable and can be triggered using ultrasound. We propose to use the capsules as drug carriers. The silver demonstrates a low cytotoxicity for up to 10 capsules per cell. After the silver shells are triggered by ultrasound, the released doxorubicin, the broken silver fragments, and the doxorubicin loading on the capsule surface all kill cells. The results demonstrate a nonpermeable silver-shell microcapsule with ultrasound sensitivity for potential medical applications.
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Affiliation(s)
- Qian Sun
- Department of Chemical Engineering and Biotechnology, University of Cambridge , West Cambridge Site, Philippa Fawcett Drive, CB3 0AS Cambridge, United Kingdom
| | - Hui Gao
- School of Engineering and Materials Science, Queen Mary University of London , Mile End Road, E1 4NS London, United Kingdom
| | - Gleb B Sukhorukov
- School of Engineering and Materials Science, Queen Mary University of London , Mile End Road, E1 4NS London, United Kingdom
| | - Alexander F Routh
- Department of Chemical Engineering and Biotechnology, University of Cambridge , West Cambridge Site, Philippa Fawcett Drive, CB3 0AS Cambridge, United Kingdom
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23
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Koroleva MY, Tokarev AM, Yurtov EV. Simulations of emulsion stabilization by silica nanoparticles. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.09.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Wang W, Milani AH, Cui Z, Zhu M, Saunders BR. Pickering Emulsions Stabilized by pH-Responsive Microgels and Their Scalable Transformation to Robust Submicrometer Colloidoisomes with Selective Permeability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8192-8200. [PMID: 28749692 DOI: 10.1021/acs.langmuir.7b01618] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Colloidosomes are micrometer-sized hollow particles that have shells consisting of coagulated or fused colloid particles. While many large colloidosomes with sizes well above 1.0 μm have been prepared, there are fewer examples of submicrometer colloidosomes. Here, we establish a simple emulsion templating-based method for the preparation of robust submicrometer pH-responsive microgel colloidosomes. The colloidosomes are constructed from microgel particles based on ethyl acrylate and methacrylic acid with peripheral vinyl groups. The pH-responsive microgels acted as both a Pickering emulsion stabilizer and macro-cross-linker. The emulsion formation studies showed that the minimum droplet diameter was reached when the microgel particles were partially swollen. Microgel colloidosomes were prepared by covalently interlinking the microgels adsorbed at the oil-water interface using thermal free-radical coupling. The colloidosomes were prepared using a standard high-shear mixer with two different rotor sizes that corresponded to high shear (HS) and very high shear (VHS) mixing conditions. The latter enabled the construction of submicrometer pH-responsive microgel-colloidosomes on the gram scale. The colloidosomes swelled strongly when the pH increased to above 6.0. The colloidosomes were robust and showed no evidence of colloidosome breakup at high pH. The effect of solute size on shell permeation was studied using a range of FITC-dextran polymers, and size-selective permeation occurred. The average pore size of the VHS microgel-colloidosomes was estimated to be between 6.6 and 9.0 nm at pH 6.2. The microgel-colloidosome properties suggest that they have the potential for future applications in cosmetics, photonics, and delivery.
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Affiliation(s)
- Wenkai Wang
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Amir H Milani
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Zhengxing Cui
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Mingning Zhu
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
| | - Brian R Saunders
- Polymers and Composites Group, School of Materials, The University of Manchester , MSS Tower, Manchester M13 9PL, U.K
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25
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Dargahi-Zaboli M, Sahraei E, Pourabbas B, Korgel BA. A simplified synthesis of silica Colloids with tunable hydrophobicity. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4079-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Zhang R, Huo JH, Peng ZG, Luo WJ, Feng Q, Wang JX, Zhang J. Study on the interaction of CaCO 3 nanoparticles and surfactant in emulsion phase transition and its molecular dynamics simulation. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.09.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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Sadowska M, Adamczyk Z, Oćwieja M, Nattich-Rak M. Monolayers of silver nanoparticles on positively charged polymer microspheres. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.03.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Mwangi WW, Ho KW, Ooi CW, Tey BT, Chan ES. Facile method for forming ionically cross-linked chitosan microcapsules from Pickering emulsion templates. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.10.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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29
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Kwok MH, Ngai T. Responsive Particle-Stabilized Emulsions: Formation and Applications. SMART MATERIALS FOR ADVANCED ENVIRONMENTAL APPLICATIONS 2016. [DOI: 10.1039/9781782622192-00091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Responsive Pickering emulsions have attracted increasing attention over the last decade. These ‘surfactant-free’ emulsions are stabilized by particulate stabilizers and their properties and stability can be controlled by applying stimuli to the system. The excellent stability of Pickering emulsions makes them even more beneficial when they are compared to conventional emulsions which are stabilized by low molecular weight surfactants or amphiphilic polymers. Different responsive Pickering emulsions systems have been developed and reported by researchers. For example, they include pH responsiveness, magnetic responsiveness, thermo-responsiveness, ion-specific systems and photo-responsiveness. In this chapter, the formation and stabilization of such emulsions are discussed, with examples of different categories of particulate stabilizers, including inorganic, biological and polymeric particles. The discussion then moves on to the applications of such responsive emulsions in the pharmaceutical industry, petroleum processing, extraction and Pickering emulsion polymerization.
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Affiliation(s)
- Man-hin Kwok
- Department of Chemistry, The Chinese University of Hong Kong Shatin, N. T. Hong Kong China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong Shatin, N. T. Hong Kong China
- The Chinese University of Hong Kong Shenzhen Research Institute Shenzhen 518057 PR China
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30
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Morse AJ, Giakoumatos EC, Tan SY, Webber GB, Armes SP, Ata S, Wanless EJ. Giant pH-responsive microgel colloidosomes: preparation, interaction dynamics and stability. SOFT MATTER 2016; 12:1477-1486. [PMID: 26648408 DOI: 10.1039/c5sm02450a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The interactions of two oil droplets grown in the presence of swollen, lightly cross-linked cationic poly(tert-butylamino)ethyl methacrylate (PTBAEMA) microgels was monitored using a high-speed video camera. Three oils (n-dodecane, isopropyl myristate and sunflower oil) were investigated, each in the absence and presence of an oil-soluble cross-linker [tolylene 2,4-diisocyanate-terminated poly(propylene glycol), PPG-TDI]. Adsorption of the swollen microgel particles was confirmed by interfacial tension, interfacial elasticity and dilational viscosity measurements on single pendant oil droplets, and assessment of the oscillatory dynamics for coalescing droplet pairs. Like the analogous bulk emulsions, particle adsorption alone did not prevent coalescence of pairs of giant Pickering emulsion droplets. However, prior addition of surface-active PPG-TDI cross-linker to the oil phase results in the formation of highly stable microgel colloidosomes via reaction with the secondary amine groups on the PTBAEMA chains. Colloidosome stability depended on the age of the oil-water interface. This reflects a balance between the adsorption kinetics of the PPG-TDI cross-linker and the microgel particles, each of which must be present at the interface to form a stable colloidosome. Colloidosome formation was virtually instantaneous in n-dodecane, but took up to 120 s in the case of isopropyl myristate. The impact of an acid-induced latex-to-microgel transition on the interaction of giant colloidosomes (originally prepared at pH 10 using isopropyl myristate) was also studied. This acid challenge did not result in coalescence, which is consistent with a closely-related study (A. J. Morse et al., Langmuir, 2014, 30(42), 12509-12519). No evidence was observed for inter-colloidosome cross-linking, which was attributed to retention of an aqueous film between the adjacent pair of colloidosomes.
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Affiliation(s)
- Andrew J Morse
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, UK
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31
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Salminen H, Helgason T, Kristinsson B, Kristbergsson K, Weiss J. Formation of nanostructured colloidosomes using electrostatic deposition of solid lipid nanoparticles onto an oil droplet interface. Food Res Int 2016. [DOI: 10.1016/j.foodres.2015.11.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Shang L, Fu F, Cheng Y, Wang H, Liu Y, Zhao Y, Gu Z. Photonic Crystal Microbubbles as Suspension Barcodes. J Am Chem Soc 2015; 137:15533-9. [DOI: 10.1021/jacs.5b10612] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Luoran Shang
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, China
| | - Fanfan Fu
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yao Cheng
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, China
| | - Huan Wang
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yuxiao Liu
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yuanjin Zhao
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, China
- Laboratory
of Environment and Biosafety, Research Institute of Southeast University in Suzhou, Suzhou 215123, China
| | - Zhongze Gu
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, China
- Laboratory
of Environment and Biosafety, Research Institute of Southeast University in Suzhou, Suzhou 215123, China
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33
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Owoseni O, Nyankson E, Zhang Y, Adams DJ, He J, Spinu L, McPherson GL, Bose A, Gupta RB, John VT. Interfacial adsorption and surfactant release characteristics of magnetically functionalized halloysite nanotubes for responsive emulsions. J Colloid Interface Sci 2015; 463:288-98. [PMID: 26555959 DOI: 10.1016/j.jcis.2015.10.064] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 10/25/2015] [Accepted: 10/27/2015] [Indexed: 01/04/2023]
Abstract
Magnetically responsive oil-in-water emulsions are effectively stabilized by a halloysite nanotube supported superparamagnetic iron oxide nanoparticle system. The attachment of the magnetically functionalized halloysite nanotubes at the oil-water interface imparts magnetic responsiveness to the emulsion and provides a steric barrier to droplet coalescence leading to emulsions that are stabilized for extended periods. Interfacial structure characterization by cryogenic scanning electron microscopy reveals that the nanotubes attach at the oil-water interface in a side on-orientation. The tubular structure of the nanotubes is exploited for the encapsulation and release of surfactant species that are typical of oil spill dispersants such as dioctyl sulfosuccinate sodium salt and polyoxyethylene (20) sorbitan monooleate. The magnetically responsive halloysite nanotubes anchor to the oil-water interface stabilizing the interface and releasing the surfactants resulting in reduction in the oil-water interfacial tension. The synergistic adsorption of the nanotubes and the released surfactants at the oil-water interface results in oil emulsification into very small droplets (less than 20μm). The synergy of the unique nanotubular morphology and interfacial activity of halloysite with the magnetic properties of iron oxide nanoparticles has potential applications in oil spill dispersion, magnetic mobilization and detection using magnetic fields.
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Affiliation(s)
- Olasehinde Owoseni
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Emmanuel Nyankson
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Yueheng Zhang
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Daniel J Adams
- Advanced Materials Research Institute, University of New Orleans, USA
| | - Jibao He
- Coordinated Instrumentation Facility, Tulane University, New Orleans, LA 70118, USA
| | - Leonard Spinu
- Advanced Materials Research Institute, University of New Orleans, USA
| | - Gary L McPherson
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Arijit Bose
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881, USA
| | - Ram B Gupta
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Vijay T John
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA.
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34
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Leong JY, Tey BT, Tan CP, Chan ES. Nozzleless Fabrication of Oil-Core Biopolymeric Microcapsules by the Interfacial Gelation of Pickering Emulsion Templates. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16169-16176. [PMID: 26148344 DOI: 10.1021/acsami.5b04486] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Ionotropic gelation has been an attractive method for the fabrication of biopolymeric oil-core microcapsules due to its safe and mild processing conditions. However, the mandatory use of a nozzle system to form the microcapsules restricts the process scalability and the production of small microcapsules (<100 μm). We report, for the first time, a nozzleless and surfactant-free approach to fabricate oil-core biopolymeric microcapsules through ionotropic gelation at the interface of an O/W Pickering emulsion. This approach involves the self-assembly of calcium carbonate (CaCO3) nanoparticles at the interface of O/W emulsion droplets followed by the addition of a polyanionic biopolymer into the aqueous phase. Subsequently, CaCO3 nanoparticles are dissolved by pH reduction, thus liberating Ca(2+) ions to cross-link the surrounding polyanionic biopolymer to form a shell that encapsulates the oil droplet. We demonstrate the versatility of this method by fabricating microcapsules from different types of polyanionic biopolymers (i.e., alginate, pectin, and gellan gum) and water-immiscible liquid cores (i.e., palm olein, cyclohexane, dichloromethane, and toluene). In addition, small microcapsules with a mean size smaller than 100 μm can be produced by selecting the appropriate conventional emulsification methods available to prepare the Pickering emulsion. The simplicity and versatility of this method allows biopolymeric microcapsules to be fabricated with ease by ionotropic gelation for numerous applications.
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Affiliation(s)
| | | | - Chin-Ping Tan
- §Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
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35
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Emulsion phase inversion from oil-in-water (1) to water-in-oil to oil-in-water (2) induced by in situ surface activation of CaCO3 nanoparticles via adsorption of sodium stearate. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.03.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Merkel T, Gräf V, Walz E, Schuchmann HP. Production of Particle-Stabilized Nonspherical Emulsion Drops in Simple Shear Flow. Chem Eng Technol 2015. [DOI: 10.1002/ceat.201500068] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Colloidosomes: Synthesis, properties and applications. J Colloid Interface Sci 2015; 447:217-28. [DOI: 10.1016/j.jcis.2014.11.058] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/21/2014] [Accepted: 11/21/2014] [Indexed: 11/21/2022]
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38
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Duncan B, Landis RF, Jerri HA, Normand V, Benczédi D, Ouali L, Rotello VM. Hybrid organic-inorganic colloidal composite 'sponges' via internal crosslinking. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:1302-1309. [PMID: 25381874 DOI: 10.1002/smll.201401753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 09/19/2014] [Indexed: 06/04/2023]
Abstract
An effective method for the generation of hybrid organic-inorganic nanocomposite microparticles featuring controlled size and high structural stability is presented. In this process, an oil-in-water Pickering emulsion is formed using hydrophilic amine-functionalized silica nanoparticles. Covalent modification using a hydrophobic maleic anhydride copolymer then alters nanoparticle wettability during crosslinking, causing a core-shell to nanocomposite structural reorganization of the assemblies. The resulting porous nanocomposites maintain discrete microparticle structures and retain payloads in their oil phase even when incubated in competitive solvents such as ethanol.
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Affiliation(s)
- Bradley Duncan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts, 01003, USA
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39
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Zandi M, Mohebbei M. Investigation of encapsulated diacetyl colloidosome release profile as a function of sintering process and release media properties. FLAVOUR FRAG J 2014. [DOI: 10.1002/ffj.3214] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mohsen Zandi
- Food Science and Technology department, agricultural faculty; Urmia university; West Azerbaijan Iran
| | - Mohebbat Mohebbei
- Ferdowsi University of Mashhad (FUM); Food Science and Technology; Mashhad 9177948974 Iran
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40
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Morse AJ, Tan SY, Giakoumatos EC, Webber GB, Armes SP, Ata S, Wanless EJ. Arrested coalescence behaviour of giant Pickering droplets and colloidosomes stabilised by poly(tert-butylaminoethyl methacrylate) latexes. SOFT MATTER 2014; 10:5669-5681. [PMID: 24919402 DOI: 10.1039/c4sm00801d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The coalescence of two oil droplets grown at pH 10 in the presence of lightly cross-linked 260 nm diameter charge-stabilised poly(tert-butylamino)ethyl methacrylate (PTBAEMA) latexes was monitored using a high-speed video camera. Three model oils (n-dodecane, isopropyl myristate and sunflower oil) were investigated, each in the absence and presence of an oil-soluble cross-linker [tolylene 2,4-diisocyanate-terminated poly(propylene glycol), PPG-TDI]. In the absence of PPG-TDI, rapid coalescence was observed for giant PTBAEMA-stabilised Pickering oil droplets, which exhibited faster coalescence times compared to bare oil droplets. However, an increase in the damping coefficients for coalescing Pickering droplets (compared to those of bare oil droplets) indicated PTBAEMA latex particle adsorption. Addition of PPG-TDI cross-linker to oil droplets in the absence of latex particles led to a reduction in the interfacial tension confirming its surface-active nature. The oil-soluble PPG-TDI reacts with the secondary amine groups on the PTBAEMA latex, producing giant colloidosomes that remain stable to coalescence when brought into contact. This stability to coalescence was not observed for bare oil droplets in the presence of PPG-TDI, confirming that the cross-linked latex particles at the interface provide the additional stability. Finally, interactions between asymmetric n-dodecane droplets were examined. Adding oil-soluble cross-linker to only one droplet resulted in "arrested coalescence" behaviour in the presence of PTBAEMA latex particles. In this context, the droplet ageing time was found to be critical and is attributed to the relatively slow particle adsorption kinetics. Ageing times of less than 60 s led to catastrophic droplet coalescence, whereas ageing times longer than 60 s indicated cross-linker diffusion from one droplet to the other, which produced inter-cross-linked colloidosomes. Arrested coalescence was only observed for ageing times of approximately 60 s.
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Affiliation(s)
- Andrew J Morse
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, UK
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Rozynek Z, Mikkelsen A, Dommersnes P, Fossum JO. Electroformation of Janus and patchy capsules. Nat Commun 2014; 5:3945. [PMID: 24853057 PMCID: PMC4050235 DOI: 10.1038/ncomms4945] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 04/24/2014] [Indexed: 11/08/2022] Open
Abstract
Janus and patchy particles have designed heterogeneous surfaces that consist of two or several patches with different materials properties. These particles are emerging as building blocks for a new class of soft matter and functional materials. Here we introduce a route for forming heterogeneous capsules by producing highly ordered jammed colloidal shells of various shapes with domains of controlled size and composition. These structures combine the functionalities offered by Janus or patchy particles, and those given by permeable shells such as colloidosomes. The simple assembly route involves the synergetic action of electro-hydrodynamic flow and electro-coalescence. We demonstrate that the method is robust and straightforwardly extendable to production of multi-patchy capsules. This forms a starting point for producing patchy colloidosomes with domains of anisotropic chemical surface properties, permeability or mixed liquid-solid phase domains, which could be exploited to produce functional emulsions, light and hollow supra-colloidosome structures, or scaffolds.
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Affiliation(s)
- Zbigniew Rozynek
- Department of Physics, Norwegian University of Science and Technology, Hoegskoleringen 5, N-7491 Trondheim, Norway
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Alexander Mikkelsen
- Department of Physics, Norwegian University of Science and Technology, Hoegskoleringen 5, N-7491 Trondheim, Norway
| | - Paul Dommersnes
- Matière et Systèmes Complexes, Université Paris 7 Diderot, 10, rue Alice Domon et Léonie Duquet, F-75205 Paris, France
- Centre for Advanced Study, Norwegian Academy of Science and Letters, Drammensvegen 78, N-0271 Oslo, Norway
| | - Jon Otto Fossum
- Department of Physics, Norwegian University of Science and Technology, Hoegskoleringen 5, N-7491 Trondheim, Norway
- Centre for Advanced Study, Norwegian Academy of Science and Letters, Drammensvegen 78, N-0271 Oslo, Norway
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42
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Sturzenegger P, Gonzenbach U, Koltzenburg S, Martynczuk J, Gauckler L. Particle-stabilized gel-core microcapsules: Synthesis and properties. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.01.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Cheng C, Teasdale I, Brüggemann O. Stimuli-Responsive Capsules Prepared from Regenerated Silk Fibroin Microspheres. Macromol Biosci 2014; 14:807-16. [DOI: 10.1002/mabi.201300497] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 12/13/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng Cheng
- Institute of Polymer Chemistry (ICP); Johannes Kepler University Linz; Welser Straße 42 4060 Leonding Austria
| | - Ian Teasdale
- Institute of Polymer Chemistry (ICP); Johannes Kepler University Linz; Welser Straße 42 4060 Leonding Austria
| | - Oliver Brüggemann
- Institute of Polymer Chemistry (ICP); Johannes Kepler University Linz; Welser Straße 42 4060 Leonding Austria
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44
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van Wijk J, van Deventer N, Harmzen E, Meuldijk J, Klumperman B. Formation of hybrid poly(styrene-co-maleic anhydride)–silica microcapsules. J Mater Chem B 2014; 2:4826-4835. [DOI: 10.1039/c4tb00473f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A technique for the micro-encapsulation of a contamination-free aqueous droplet is presented.
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Affiliation(s)
- Judith van Wijk
- Eindhoven University of Technology
- Department of Chemical Engineering and Chemistry
- 5600 MB Eindhoven, The Netherlands
| | - Nedine van Deventer
- Stellenbosch University
- Dept Chemistry and Polymer Science
- Matieland 7602, South Africa
| | - Elrika Harmzen
- Stellenbosch University
- Dept Chemistry and Polymer Science
- Matieland 7602, South Africa
| | - Jan Meuldijk
- Eindhoven University of Technology
- Department of Chemical Engineering and Chemistry
- 5600 MB Eindhoven, The Netherlands
| | - Bert Klumperman
- Stellenbosch University
- Dept Chemistry and Polymer Science
- Matieland 7602, South Africa
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45
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Stephenson G, Parker RM, Lan Y, Yu Z, Scherman OA, Abell C. Supramolecular colloidosomes: fabrication, characterisation and triggered release of cargo. Chem Commun (Camb) 2014; 50:7048-51. [DOI: 10.1039/c4cc01479k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular colloidosomes are self-assembled at the interface of microfluidic droplets via a cucurbit[8]uril host–guest complex, allowing for triggered release of aqueous cargo.
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Affiliation(s)
| | | | - Yang Lan
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW, UK
- Melville Laboratory for Polymer Synthesis
- Department of Chemistry
| | - Ziyi Yu
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW, UK
| | - Oren A. Scherman
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW, UK
- Melville Laboratory for Polymer Synthesis
- Department of Chemistry
| | - Chris Abell
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW, UK
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46
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Sander JS, Studart AR. Nanoparticle-filled complex colloidosomes for tunable cargo release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15168-15173. [PMID: 24266601 DOI: 10.1021/la402901c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Capsules with a shell made out of nanoparticles, so-called colloidosomes, are very interesting for controlled encapsulation and release because of their selectively permeable shell, their mechanical stability, and the possibility to make them from many materials. Here, we report the creation of complex colloidosomes that can release encapsulated cargo on-demand in single or multiple release events. Unprecedented on-demand, multiple release is achieved by incorporating functional nanoparticles within the colloidosome hollow core. The entrapped nanoparticles enable pH-triggered release by either swelling to rupture the capsule shell in one single event or desorbing on-demand cargo molecules initially adsorbed on their surface. Implementation of such mechanisms in capsules with magnetically responsive shells enabled the creation of colloidosomes exhibiting unique spatiotemporal control of cargo release.
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Affiliation(s)
- Jonathan S Sander
- Complex Materials, Department of Materials, ETH Zurich , 8093 Zurich, Switzerland
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47
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Pang M, Cairns AJ, Liu Y, Belmabkhout Y, Zeng HC, Eddaoudi M. Synthesis and Integration of Fe-soc-MOF Cubes into Colloidosomes via a Single-Step Emulsion-Based Approach. J Am Chem Soc 2013; 135:10234-7. [DOI: 10.1021/ja403994u] [Citation(s) in RCA: 231] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Maolin Pang
- Functional Materials Design, Discovery & Development Research Group (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Department of Chemical
and Biomolecular
Engineering and KAUST-NUS GCR Program, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore
| | - Amy J. Cairns
- Functional Materials Design, Discovery & Development Research Group (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Yunling Liu
- Functional Materials Design, Discovery & Development Research Group (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Youssef Belmabkhout
- Functional Materials Design, Discovery & Development Research Group (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Hua Chun Zeng
- Department of Chemical
and Biomolecular
Engineering and KAUST-NUS GCR Program, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent,
Singapore
| | - Mohamed Eddaoudi
- Functional Materials Design, Discovery & Development Research Group (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
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48
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Electrostatically gated membrane permeability in inorganic protocells. Nat Chem 2013; 5:529-36. [DOI: 10.1038/nchem.1644] [Citation(s) in RCA: 207] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 03/20/2013] [Indexed: 11/08/2022]
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49
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Lone S, Sampatrao Ghodake G, Sung Lee D, Cheong IW. Facile preparation of highly monodisperse poly(NIPAAm)–AuNP composite hollow microcapsules by simple tubular microfluidics. NEW J CHEM 2013. [DOI: 10.1039/c3nj41133h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Tian J, Liu G, Guan C, Zhao H. Amphiphilic gold nanoparticles formed at a liquid–liquid interface and fabrication of hybrid nanocapsules based on interfacial UV photodimerization. Polym Chem 2013. [DOI: 10.1039/c2py20967e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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