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Lanz C, Krysiak Y, Liu X, Hohgardt M, Walla PJ, Polarz S. Non-Classical Self-Assembly of Anisotropic Magneto-Organosilica Janus Particles Possessing Surfactant Properties and the Field-Triggered Breakdown of Surface Activity and Amphiphilic Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304380. [PMID: 37649193 DOI: 10.1002/smll.202304380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/26/2023] [Indexed: 09/01/2023]
Abstract
Using colloidal particles as models to understand processes on a smaller scale is a precious approach. Compared to molecules, particles are less defined, but their architecture can be more complex and so is their long-range interaction. One can observe phenomena that are unknown or much more difficult to realize on the molecular level. The current paper focuses on particle-based surfactants and reports on numerous unexpected properties. The main goal is creating an amphiphilic system with responsiveness in surface activity and associated self-organization phenomena depending on applying an external trigger, preferably a physical field. A key step is the creation of a Janus-type particle characterized by two types of dipoles (electric and magnetic) which geometrically stand orthogonal to each other. In a field, one can control which contribution and direction dominate the interparticle interactions. As a result, one can drastically change the system's properties. The features of ferrite-core organosilica-shell particles with grain-like morphology modified by click chemistry are studied in response to spatially isotropic and anisotropic triggers. A highly unusual aggregation-dissolution-reaggregation sequence w as discovered. Using a magnetic field, one can even switch off the amphiphilic properties and use this for the field-triggered breaking of multiphase systems such as emulsions.
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Affiliation(s)
- Cornelia Lanz
- Institute of Inorganic Chemistry, Leibniz Universität Hannover, Callinstrasse 9, D-30167, Hannover, Germany
| | - Yaşar Krysiak
- Institute of Inorganic Chemistry, Leibniz Universität Hannover, Callinstrasse 9, D-30167, Hannover, Germany
| | - Xu Liu
- Institute of Physical and Theoretical Chemistry, Technische Universität Braunschweig, Hagenring 30, D-38106, Braunschweig, Germany
| | - Manuel Hohgardt
- Institute of Physical and Theoretical Chemistry, Technische Universität Braunschweig, Hagenring 30, D-38106, Braunschweig, Germany
| | - Peter Jomo Walla
- Institute of Physical and Theoretical Chemistry, Technische Universität Braunschweig, Hagenring 30, D-38106, Braunschweig, Germany
| | - Sebastian Polarz
- Institute of Inorganic Chemistry, Leibniz Universität Hannover, Callinstrasse 9, D-30167, Hannover, Germany
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2
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Pradhan SS, Saha S. Advances in design and applications of polymer brush modified anisotropic particles. Adv Colloid Interface Sci 2022; 300:102580. [PMID: 34922246 DOI: 10.1016/j.cis.2021.102580] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 12/17/2022]
Abstract
Current advancements in the creation of anisotropy in particles and their surface modification with polymer brushes have established a new class of hybrid materials termed polymer brush modified anisotropic particles (PBMAP). PBMAPs display unique property combinations, e.g., multi-functionality in multiple directions along with smart behavior, which is not easily achievable in traditional hybrid materials. Typically, anisotropic particles can be categorized based on three different factors, such as shape anisotropy (geometry driven), compositional anisotropy (functionality driven), and surface anisotropy (spatio-selective surface modification driven). In this review, we have particularly focused on the synthetic strategies to construct the various type of PBMAPs based on inorganic or organic core which may or may not be isotropic in nature, and their applications in various fields ranging from drug delivery to catalysis. In addition, superior performances and fascinating properties of PBMAPs over their isotropic analogues are also highlighted. A brief overview of their future developments and associated challenges have been discussed at the end.
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Affiliation(s)
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India.
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3
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Lee J, Moon S, Han YB, Yang SJ, Lahann J, Lee KJ. Facile Fabrication of Anisotropic Multicompartmental Microfibers Using Charge Reversal Electrohydrodynamic Co-Jetting. Macromol Rapid Commun 2021; 43:e2100560. [PMID: 34643980 DOI: 10.1002/marc.202100560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/08/2021] [Indexed: 12/13/2022]
Abstract
Anisotropic microstructures are utilized in various fields owing to their unique properties, such as reversible shape transitions or on-demand and sequential release of drug combinations. In this study, anisotropic multicompartmental microfibers composed of different polymers are prepared via charge reversal electrohydrodynamic (EHD) co-jetting. The combination of various polymers, such as thermoplastic polyurethane, poly(D,L-lactide-co-glycolide), poly(vinyl cinnamate), and poly(methyl methacrylate), results in microfibers with distinct compositional boundaries. Charge reversal during EHD co-jetting enables facile fabrication of multicompartmental microfibers with the desired composition and tunable inner architecture, broadening their spectrum of potential applications, such as functional microfibers and cell scaffolds with multiple physical and chemical properties.
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Affiliation(s)
- Jaeyu Lee
- Department of Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, 99 Daehak-ro (st), Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Seongjun Moon
- Information and Electronics Research Institute, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro (st), Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yong Bin Han
- Advanced Nanohybrids Laboratory, Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon, 22212, Republic of Korea
| | - Seung Jae Yang
- Advanced Nanohybrids Laboratory, Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon, 22212, Republic of Korea
| | - Joerg Lahann
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Kyung Jin Lee
- Department of Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, 99 Daehak-ro (st), Yuseong-gu, Daejeon, 34134, Republic of Korea
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Mirza I, Saha S. Biocompatible Anisotropic Polymeric Particles: Synthesis, Characterization, and Biomedical Applications. ACS APPLIED BIO MATERIALS 2020; 3:8241-8270. [DOI: 10.1021/acsabm.0c01075] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ifra Mirza
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
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Brown TD, Habibi N, Wu D, Lahann J, Mitragotri S. Effect of Nanoparticle Composition, Size, Shape, and Stiffness on Penetration Across the Blood–Brain Barrier. ACS Biomater Sci Eng 2020; 6:4916-4928. [DOI: 10.1021/acsbiomaterials.0c00743] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Tyler D. Brown
- School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02318, United States
- Wyss Institute of Biologically Inspired Engineering, Harvard University, 3 Blackfan Circle, Boston, Massachusetts 02115, United States
| | - Nahal Habibi
- Biointerfaces Institute and Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Debra Wu
- School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02318, United States
- Wyss Institute of Biologically Inspired Engineering, Harvard University, 3 Blackfan Circle, Boston, Massachusetts 02115, United States
| | - Joerg Lahann
- Biointerfaces Institute and Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Samir Mitragotri
- School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02318, United States
- Wyss Institute of Biologically Inspired Engineering, Harvard University, 3 Blackfan Circle, Boston, Massachusetts 02115, United States
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Lanz C, Schlötter M, Klinkenberg N, Besirske P, Polarz S. Stimuli-Responsive Particle-Based Amphiphiles as Active Colloids Prepared by Anisotropic Click Chemistry. Angew Chem Int Ed Engl 2020; 59:8902-8906. [PMID: 32157801 PMCID: PMC7318572 DOI: 10.1002/anie.202001423] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/05/2020] [Indexed: 12/16/2022]
Abstract
Amphiphiles alter the energy of surfaces, but the extent of this feature is typically constant. Smart systems with amphiphilicity as a function of an external, physical trigger are desirable. As a trigger, the exposure to a magnetic field, in particular, is attractive because it is not shielded in water. Amphiphiles like surfactants are well known, but the magnetic response of molecules is typically weak. Vice-versa, magnetic particles with strong response to magnetic triggers are fully established in nanoscience, but they are not amphiphilic. In this work colloids with Janus architecture and ultra-small dimensions (25 nm) have been prepared by spatial control over the thiol-yne click modification of organosilica-magnetite core-shell nanoparticles. The amphiphilic properties of these anisotropically modified particles are proven. Finally, a pronounced and reversible change in interfacial stabilization results from the application of a weak (<1 T) magnetic field.
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Affiliation(s)
- Cornelia Lanz
- Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany.,Institute of Inorganic Chemistry, Leibniz-University Hannover, Callinstrasse 9, 30167, Hannover, Germany
| | - Moritz Schlötter
- Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Nele Klinkenberg
- Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Patricia Besirske
- Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Sebastian Polarz
- Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany.,Institute of Inorganic Chemistry, Leibniz-University Hannover, Callinstrasse 9, 30167, Hannover, Germany
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7
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Lanz C, Schlötter M, Klinkenberg N, Besirske P, Polarz S. Stimuli‐Responsive Particle‐Based Amphiphiles as Active Colloids Prepared by Anisotropic Click Chemistry. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Cornelia Lanz
- Department of Chemistry University of Konstanz Universitätsstrasse 10 78457 Konstanz Germany
- Institute of Inorganic Chemistry Leibniz-University Hannover Callinstrasse 9 30167 Hannover Germany
| | - Moritz Schlötter
- Department of Chemistry University of Konstanz Universitätsstrasse 10 78457 Konstanz Germany
| | - Nele Klinkenberg
- Department of Chemistry University of Konstanz Universitätsstrasse 10 78457 Konstanz Germany
| | - Patricia Besirske
- Department of Chemistry University of Konstanz Universitätsstrasse 10 78457 Konstanz Germany
| | - Sebastian Polarz
- Department of Chemistry University of Konstanz Universitätsstrasse 10 78457 Konstanz Germany
- Institute of Inorganic Chemistry Leibniz-University Hannover Callinstrasse 9 30167 Hannover Germany
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8
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Kirillova A, Marschelke C, Synytska A. Hybrid Janus Particles: Challenges and Opportunities for the Design of Active Functional Interfaces and Surfaces. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9643-9671. [PMID: 30715834 DOI: 10.1021/acsami.8b17709] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Janus particles are a unique class of multifunctional patchy particles combining two dissimilar chemical or physical functionalities at their opposite sides. The asymmetry characteristic for Janus particles allows them to self-assemble into sophisticated structures and materials not attainable by their homogeneous counterparts. Significant breakthroughs have recently been made in the synthesis of Janus particles and the understanding of their assembly. Nevertheless, the advancement of their applications is still a challenging field. In this Review, we highlight recent developments in the use of Janus particles as building blocks for functional materials. We provide a brief introduction into the synthetic strategies for the fabrication of JPs and their properties and assembly, outlining the existing challenges. The focus of this Review is placed on the applications of Janus particles for active interfaces and surfaces. Active functional interfaces are created owing to the stabilization efficiency of Janus particles combined with their capability for interface structuring and functionalizing. Moreover, Janus particles can be employed as building blocks to fabricate active functional surfaces with controlled chemical and topographical heterogeneity. Ultimately, we will provide implications for the rational design of multifunctional materials based on Janus particles.
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Affiliation(s)
- Alina Kirillova
- Department of Mechanical Engineering and Materials Science, Edmund T. Pratt Jr. School of Engineering , Duke University , Durham , North Carolina 27708 , United States
| | - Claudia Marschelke
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6 , 01069 Dresden , Germany
- Fakultät Mathematik und Naturwissenschaften , Technische Universität Dresden , 01062 Dresden , Germany
| | - Alla Synytska
- Leibniz-Institut für Polymerforschung Dresden e.V. , Hohe Strasse 6 , 01069 Dresden , Germany
- Fakultät Mathematik und Naturwissenschaften , Technische Universität Dresden , 01062 Dresden , Germany
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9
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Rutkowski S, Mu L, Si T, Gai M, Sun M, Frueh J, He Q. Magnetically-propelled hydrogel particle motors produced by ultrasound assisted hydrodynamic electrospray ionization jetting. Colloids Surf B Biointerfaces 2019; 175:44-55. [DOI: 10.1016/j.colsurfb.2018.11.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/22/2018] [Accepted: 11/27/2018] [Indexed: 12/12/2022]
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10
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Chen C, Liu W, Jiang P, Hong T. Coaxial Electrohydrodynamic Atomization for the Production of Drug-Loaded Micro/Nanoparticles. MICROMACHINES 2019; 10:E125. [PMID: 30769856 PMCID: PMC6412865 DOI: 10.3390/mi10020125] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/10/2019] [Accepted: 02/12/2019] [Indexed: 12/26/2022]
Abstract
Coaxial electrohydrodynamic atomization (CEHDA) presents a promising technology for preparing drug-loaded micro/nanoparticles with core-shell structures. Recently, CEHDA has attracted tremendous attention based on its specific advantages, including precise control over particle size and size distribution, reduced initial burst release and mild preparation conditions. Moreover, with different needles, CEHDA can produce a variety of drug-loaded micro/nanoparticles for drug delivery systems. In this review, we summarize recent advances in using double-layer structure, multilayer structure and multicomponent encapsulation strategies for developing micro/nanoparticles. The merits of applying multiplexed electrospray sources for high-throughput production are also highlighted.
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Affiliation(s)
- Chuanpin Chen
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China.
| | - Wenfang Liu
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China.
| | - Ping Jiang
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China.
| | - Tingting Hong
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China.
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11
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Rutkowski S, Si T, Gai M, Sun M, Frueh J, He Q. Magnetically-guided hydrogel capsule motors produced via ultrasound assisted hydrodynamic electrospray ionization jetting. J Colloid Interface Sci 2019; 541:407-417. [PMID: 30710823 DOI: 10.1016/j.jcis.2019.01.103] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 12/19/2022]
Abstract
Hydrogel capsules are a potential candidate for drug delivery and an interesting alternative to polyelectrolyte multilayer capsules which are under investigation since 20 years. Recently introduced polyelectrolyte complex capsules produced by spraying are non-biodegradable and not biocompatible, which limits their practical application, while biodegradable alginate capsules require complex coaxial electrospray ionization jetting. In this work, biodegradable alginate capsules cross-linked by calcium are successfully produced by hydrodynamic electrospray ionization jetting with the assistance of low frequency ultrasound. The size and shape of most capsules show significant differences with respect to different spraying distance, spraying mode, electrode shape and spraying concentration. Capsules in the shape of vase, mushrooms and spheres were successfully produced. Average capsule size can be adjusted from 10 μm to 2 mm. These capsules are used to encapsulate a model drug. Encapsulated paramagnetic particles enable defined directional motion under the propulsion of a rotating magnetic field, while model drugs can be released by ultrasound.
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Affiliation(s)
- Sven Rutkowski
- Key Lab of Microsystems and Microstructures Manufacturing, Yikuang Street 2 B1, Harbin Institute of Technology, Harbin 150080, PR China
| | - Tieyan Si
- Physics Department, Yikuang Street 2 2H, School of Science, Harbin Institute of Technology, Harbin 150080, PR China.
| | - Meiyu Gai
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany; National Research Tomsk Polytechnic University, 634050 Tomsk, Russian Federation
| | - Mengmeng Sun
- Key Lab of Microsystems and Microstructures Manufacturing, Yikuang Street 2 B1, Harbin Institute of Technology, Harbin 150080, PR China
| | - Johannes Frueh
- Key Lab of Microsystems and Microstructures Manufacturing, Yikuang Street 2 B1, Harbin Institute of Technology, Harbin 150080, PR China; National Research Tomsk Polytechnic University, 634050 Tomsk, Russian Federation; Institute of Environmental Engineering, ETH Eidgenössische Technische Hochschule Zürich, 8093 Zürich, Switzerland.
| | - Qiang He
- Key Lab of Microsystems and Microstructures Manufacturing, Yikuang Street 2 B1, Harbin Institute of Technology, Harbin 150080, PR China.
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Lo YC, Tseng HF, Chiu YJ, Wu BH, Li JW, Chen JT. Solvent-Induced Shape Recovery of Anisotropic Polymer Particles Prepared by a Modified Thermal Stretching Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8326-8332. [PMID: 29924616 DOI: 10.1021/acs.langmuir.8b01479] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Anisotropic polymer particles have attracted great attention because of their unique properties and potential applications in various areas, such as microelectronics, drug delivery, and medical imaging. The fabrication and morphology control, especially the shape recovery, of anisotropic polymer particles, however, remains a challenging task. In this work, we develop a novel strategy to fabricate anisotropic polymer particles by thermally stretching poly(vinyl alcohol) (PVA) films embedding polystyrene (PS) microspheres using a weight. Depending on the preannealing condition, anisotropic PS particles with two different shapes, sharp-headed and blunt-headed PS particles, can be obtained. The PVA films can be selectively removed by isopropanol/water, releasing the anisotropic PS particles. By adding tetrahydrofuran (THF), a good solvent for PS, into the PS particle-containing solutions, the anisotropic particles gradually transform back to spheres to reduce the total interfacial energies. The shape recovery rates of the polymer particles can be controlled by the amount of the added THF. This work not only provides a simple and feasible route to fabricate anisotropic polymer particles but also contributes to a deeper understanding in the solvent-induced shape recovery process from anisotropic polymer particles to polymer spheres.
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Affiliation(s)
- Yu-Ching Lo
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Hsiao-Fan Tseng
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Yu-Jing Chiu
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu 30010 , Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program , Academia Sinica and National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Bo-Hao Wu
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Jia-Wei Li
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu 30010 , Taiwan
- Center for Emergent Functional Matter Science, National Chiao Tung University , Hsinchu 30010 , Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program , Academia Sinica and National Chiao Tung University , Hsinchu 30010 , Taiwan
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Rutkowski S, Si T, Gai M, Frueh J, He Q. Hydrodynamic electrospray ionization jetting of calcium alginate particles: effect of spray-mode, spraying distance and concentration. RSC Adv 2018; 8:24243-24249. [PMID: 35539165 PMCID: PMC9082322 DOI: 10.1039/c8ra03490g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 06/27/2018] [Indexed: 01/15/2023] Open
Abstract
Hydrodynamic electrospray ionization jetting was applied for generating and characterizing calcium cross-linked alginate microparticles. These microparticles show different diameters and aspect ratios for three electrospray modes (dripping, conejet and multijet modes), four spraying distances (5, 10, 15 and 20 cm), and six spraying concentrations. Comparing the three different electrospray modes, we found that the conejet mode results in the smallest particle diameters, lowest aspect ratio and smallest variations over the parameter space mentioned above. For all spraying modes, the resultant particle diameters become independent of the spraying distance at a sprayed solute concentration ≥ 2.5%. The aspect ratio of microparticles varies significantly for different spraying modes and distances. An increasing aspect ratio of all spray modes was determined for sodium alginate spraying concentrations ≤ 1.5% and spraying distances of 20 cm; this phenomenon can be explained with the chain ejection effect. This systematic investigation offers a basic database for industrial applications of hydrodynamic electrospray ionization. Hydrodynamic electrospray ionization jetting was applied for generating and characterizing calcium cross-linked alginate microparticles.![]()
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Affiliation(s)
- Sven Rutkowski
- Key Lab of Microsystems and Microstructures Manufacturing
- Micro/Nanotechnology Research Center
- Harbin Institute of Technology
- Harbin 150080
- P. R. China
| | - Tieyan Si
- Key Lab of Microsystems and Microstructures Manufacturing
- Micro/Nanotechnology Research Center
- Harbin Institute of Technology
- Harbin 150080
- P. R. China
| | - Meiyu Gai
- School of Engineering and Materials Science
- Queen Mary University of London
- London E1 4NS
- UK
- National Research Tomsk Polytechnic University
| | - Johannes Frueh
- Key Lab of Microsystems and Microstructures Manufacturing
- Micro/Nanotechnology Research Center
- Harbin Institute of Technology
- Harbin 150080
- P. R. China
| | - Qiang He
- Key Lab of Microsystems and Microstructures Manufacturing
- Micro/Nanotechnology Research Center
- Harbin Institute of Technology
- Harbin 150080
- P. R. China
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Lo YC, Chiu YJ, Tseng HF, Chen JT. Thermal-Annealing-Induced Self-Stretching: Fabrication of Anisotropic Polymer Particles on Polymer Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12300-12305. [PMID: 28984460 DOI: 10.1021/acs.langmuir.7b02771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Designing anisotropic particles of various shapes draws great attention to scientists nowadays. We develop a facile and simple method to fabricate anisotropic polymer particles from spherical polymer particles. Poly(vinyl alcohol) (PVA) films spin-coated with polystyrene (PS) microspheres are confined on both sides using binder clips and are heated above the glass-transition temperatures of the polymers. During the thermal annealing process, the PS particles sink into the PVA films and transform to anisotropic particles. Depending on the distances to the bound regions, oblate spheroid PS particles or prolate spheroid particles with different aspect ratios can be obtained. The transformation of the particles is mainly driven by the stretching forces and the squeezing forces. The main advantage of this method is that anisotropic particles with different shapes can be fabricated simultaneously on a single film. We expect that this novel method can be helpful to various fields including colloids science, suspension rheology, and drug delivery.
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Affiliation(s)
- Yu-Ching Lo
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu, Taiwan 30010
| | - Yu-Jing Chiu
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu, Taiwan 30010
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica and National Chiao Tung University , Hsinchu, Taiwan 30010
| | - Hsiao-Fan Tseng
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu, Taiwan 30010
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Chiao Tung University , Hsinchu, Taiwan 30010
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica and National Chiao Tung University , Hsinchu, Taiwan 30010
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Hsu C, Du Y, Wang X. Janus and Strawberry-like Particles from Azo Molecular Glass and Polydimethylsiloxane Oligomer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10645-10654. [PMID: 28926714 DOI: 10.1021/acs.langmuir.7b02815] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study investigated Janus and strawberry-like particles composed of azo molecular glass and polydimethylsiloxane (PDMS) oligomer, focusing on controllable fabrication and formation mechanism of these unique structures and morphologies. Two materials, the azo molecular glass (IA-Chol) and PDMS oligomer (H2pdca-PDMS), were prepared for this purpose. The Janus and strawberry-like particles were obtained from the droplets of a dichloromethane (DCM) solution containing both IA-Chol and H2pdca-PDMS, dispersed in water and stabilized by poly(vinyl alcohol). Results show that the structured particles are formed through segregation between the two components induced by gradual evaporation of DCM from the droplets, which is controlled by adding ethylene glycol (EG) into the above dispersion. Without the addition of EG, Janus particles are formed through the full segregation of the two components in the droplets. On the other hand, with the existence of EG in the dispersion, strawberry-like particles instead of Janus particles are formed in the phase separation process. The diffusion of EG molecules from the dispersion medium into the droplets causes the PDMS phase deswelling in the interfacial area due to the poor solvent effect. Caused by the surface coagulation, the coalescence of the isolated IA-Chol domains is jammed in the shell region, which results in the formation of the strawberry-like particles. For the particles separated from the dispersion and dried, the PDMS oligomer phase of the Janus particles can adhere and spread on the substrate to form unique "particle-on-pad" morphology due to its low surface energy and swelling ability, while the strawberry-like particles exist as "standstill" objects on the substrates. Upon irradiation with a linearly polarized laser beam at 488 nm, the azo molecular glass parts in the particles are significantly deformed along the light polarization direction, which show unique and distinct morphologies for these two types of the particles.
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Affiliation(s)
- Chungen Hsu
- Department of Chemical Engineering, Laboratory of Advanced Materials (MOE), Tsinghua University , Beijing, P. R. China 100084
| | - Yi Du
- Department of Chemical Engineering, Laboratory of Advanced Materials (MOE), Tsinghua University , Beijing, P. R. China 100084
| | - Xiaogong Wang
- Department of Chemical Engineering, Laboratory of Advanced Materials (MOE), Tsinghua University , Beijing, P. R. China 100084
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Cheng J, Jun Y, Qin J, Lee SH. Electrospinning versus microfluidic spinning of functional fibers for biomedical applications. Biomaterials 2017; 114:121-143. [DOI: 10.1016/j.biomaterials.2016.10.040] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/29/2016] [Accepted: 10/27/2016] [Indexed: 12/31/2022]
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Rahmani S, Villa CH, Dishman AF, Grabowski ME, Pan DC, Durmaz H, Misra AC, Colón-Meléndez L, Solomon MJ, Muzykantov VR, Lahann J. Long-circulating Janus nanoparticles made by electrohydrodynamic co-jetting for systemic drug delivery applications. J Drug Target 2016; 23:750-8. [PMID: 26453170 DOI: 10.3109/1061186x.2015.1076428] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Nanoparticles with controlled physical properties have been widely used for controlled release applications. In addition to shape, the anisotropic nature of the particles can be an important design criterion to ensure selective surface modification or independent release of combinations of drugs. PURPOSE Electrohydrodynamic (EHD) co-jetting is used for the fabrication of uniform anisotropic nanoparticles with individual compartments and initial physicochemical and biological characterization is reported. METHODS EHD co-jetting is used to create nanoparticles, which are characterized at each stage with scanning electron microscopy (SEM), structured illumination microscopy (SIM), dynamic light scattering (DLS) and nanoparticle tracking analysis (NTA). Surface immobilization techniques are used to incorporate polyethylene glycol (PEG) and I(125) radiolabels into the nanoparticles. Particles are injected in mice and the particle distribution after 1, 4 and 24 hours is assessed. RESULTS AND DISCUSSION Nanoparticles with an average diameter of 105.7 nm are prepared by EHD co-jetting. The particles contain functional chemical groups for further surface modification and radiolabeling. The density of PEG molecules attached to the surface of nanoparticles is determined to range between 0.02 and 6.04 ligands per square nanometer. A significant fraction of the nanoparticles (1.2% injected dose per mass of organ) circulates in the blood after 24 h. CONCLUSION EHD co-jetting is a versatile method for the fabrication of nanoparticles for drug delivery. Circulation of the nanoparticles for 24 h is a pre-requisite for subsequent studies to explore defined targeting of the nanoparticles to a specific anatomic site.
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Affiliation(s)
- Sahar Rahmani
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA .,b Biomedical Engineering, University of Michigan , Ann Arbor , MI , USA .,c Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT) , Germany
| | - Carlos H Villa
- d Department of Pharmacology , University of Pennsylvania , Philadelphia , PA , USA , and
| | - Acacia F Dishman
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA
| | - Marika E Grabowski
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA .,b Biomedical Engineering, University of Michigan , Ann Arbor , MI , USA
| | - Daniel C Pan
- d Department of Pharmacology , University of Pennsylvania , Philadelphia , PA , USA , and
| | - Hakan Durmaz
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA .,e Department of Chemical Engineering , University of Michigan , Ann Arbor , MI , USA
| | - Asish C Misra
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA .,b Biomedical Engineering, University of Michigan , Ann Arbor , MI , USA
| | - Laura Colón-Meléndez
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA .,e Department of Chemical Engineering , University of Michigan , Ann Arbor , MI , USA
| | - Michael J Solomon
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA .,e Department of Chemical Engineering , University of Michigan , Ann Arbor , MI , USA
| | - Vladimir R Muzykantov
- d Department of Pharmacology , University of Pennsylvania , Philadelphia , PA , USA , and
| | - Joerg Lahann
- a Biointerfaces Institute, University of Michigan , Ann Arbor , MI , USA .,b Biomedical Engineering, University of Michigan , Ann Arbor , MI , USA .,c Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT) , Germany .,e Department of Chemical Engineering , University of Michigan , Ann Arbor , MI , USA
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Zhou X, Du Y, Wang X. Azo Polymer Janus Particles Possessing Photodeformable and Magnetic-Field-Responsive Dual Functions. Chem Asian J 2016; 11:2130-4. [DOI: 10.1002/asia.201600796] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Xinran Zhou
- Department of Chemical Engineering; Key Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 People's Republic of China
| | - Yi Du
- Department of Chemical Engineering; Key Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 People's Republic of China
| | - Xiaogong Wang
- Department of Chemical Engineering; Key Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 People's Republic of China
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Li P, Li K, Niu X, Fan Y. Electrospraying magnetic-fluorescent bifunctional Janus PLGA microspheres with dual rare earth ions fluorescent-labeling drugs. RSC Adv 2016. [DOI: 10.1039/c6ra15401h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Magnetic-fluorescent Janus PLGA microspheres [PLGA/EuLa3(Bim)12]//[PLGA/Fe3O4] with dual rare earth ions fluorescent-labeling drug could provide accuracy and efficiency for fluorescent tracing.
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Affiliation(s)
- Ping Li
- Key Laboratory for Biomechanics and Mechanobiology
- Ministry of Education
- Beihang University
- 100191 Beijing
- China
| | - Kun Li
- Key Laboratory for Biomechanics and Mechanobiology
- Ministry of Education
- Beihang University
- 100191 Beijing
- China
| | - Xufeng Niu
- Key Laboratory for Biomechanics and Mechanobiology
- Ministry of Education
- Beihang University
- 100191 Beijing
- China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology
- Ministry of Education
- Beihang University
- 100191 Beijing
- China
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Xie J, Jiang J, Davoodi P, Srinivasan MP, Wang CH. Electrohydrodynamic atomization: A two-decade effort to produce and process micro-/nanoparticulate materials. Chem Eng Sci 2015; 125:32-57. [PMID: 25684778 PMCID: PMC4322784 DOI: 10.1016/j.ces.2014.08.061] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Electrohydrodynamic atomization (EHDA), also called electrospray technique, has been studied for more than one century. However, since 1990s it has begun to be used to produce and process micro-/nanostructured materials. Owing to the simplicity and flexibility in EHDA experimental setup, it has been successfully employed to generate particulate materials with controllable compositions, structures, sizes, morphologies, and shapes. EHDA has also been used to deposit micro- and nanoparticulate materials on surfaces in a well-controlled manner. All these attributes make EHDA a fascinating tool for preparing and assembling a wide range of micro- and nanostructured materials which have been exploited for use in pharmaceutics, food, and healthcare to name a few. Our goal is to review this field, which allows scientists and engineers to learn about the EHDA technique and how it might be used to create, process, and assemble micro-/nanoparticulate materials with unique and intriguing properties. We begin with a brief introduction to the mechanism and setup of EHDA technique. We then discuss issues critical to successful application of EHDA technique, including control of composition, size, shape, morphology, structure of particulate materials and their assembly. We also illustrate a few of the many potential applications of particulate materials, especially in the area of drug delivery and regenerative medicine. Next, we review the simulation and modeling of Taylor cone-jet formation for a single and co-axial nozzle. The mathematical modeling of particle transport and deposition is presented to provide a deeper understanding of the effective parameters in the preparation, collection and pattering processes. We conclude this article with a discussion on perspectives and future possibilities in this field.
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Affiliation(s)
- Jingwei Xie
- Department of Pharmaceutical Sciences and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Jiang Jiang
- Department of Pharmaceutical Sciences and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Pooya Davoodi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585
| | - M. P. Srinivasan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585
| | - Chi-Hwa Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585
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Park TH, Lee KJ, Hwang S, Yoon J, Woell C, Lahann J. Spatioselective growth of metal-organic framework nanocrystals on compositionally anisotropic polymer particles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:2883-2888. [PMID: 24677551 DOI: 10.1002/adma.201305461] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 12/04/2013] [Indexed: 06/03/2023]
Abstract
Selective growth of metal organic framework materials on the surface of compartmentalized polymer microparticles is achieved by electro-hydrodynamic co-jetting, selective surface modification, and anisotropic crystal growth.
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Affiliation(s)
- Tae-Hong Park
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
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Rahmani S, Saha S, Durmaz H, Donini A, Misra AC, Yoon J, Lahann J. Chemically orthogonal three-patch microparticles. Angew Chem Int Ed Engl 2014; 53:2332-8. [PMID: 24574030 PMCID: PMC5550901 DOI: 10.1002/anie.201310727] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Indexed: 12/24/2022]
Abstract
Compared to two-dimensional substrates, only a few methodologies exist for the spatially controlled decoration of three-dimensional objects, such as microparticles. Combining electrohydrodynamic co-jetting with synthetic polymer chemistry, we were able to create two- and three-patch microparticles displaying chemically orthogonal anchor groups on three distinct surface patches of the same particle. This approach takes advantage of a combination of novel chemically orthogonal polylactide-based polymers and their processing by electrohydrodynamic co-jetting to yield unprecedented multifunctional microparticles. Several micropatterned particles were fabricated displaying orthogonal click functionalities. Specifically, we demonstrate novel two- and three-patch particles. Multi-patch particles are highly sought after for their potential to present multiple distinct ligands in a directional manner. This work clearly establishes a viable route towards orthogonal reaction strategies on multivalent micropatterned particles.
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Affiliation(s)
- Sahar Rahmani
- Department of Biomedical Engineering, Chemical Engineering, Macromolecular Science and Engineering, Material Science and Engineering, University of Michigan, Ann Arbor, 48109 (USA) http://www.umich.edu/∼lahannj/index.htm; Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany)
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Rahmani S, Saha S, Durmaz H, Donini A, Misra AC, Yoon J, Lahann J. Chemically Orthogonal Three-Patch Microparticles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310727] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Rahmani S, Park TH, Dishman AF, Lahann J. Multimodal delivery of irinotecan from microparticles with two distinct compartments. J Control Release 2013; 172:239-245. [PMID: 23973814 DOI: 10.1016/j.jconrel.2013.08.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 08/12/2013] [Accepted: 08/13/2013] [Indexed: 12/13/2022]
Abstract
In the last several decades, research in the field of drug delivery has been challenged with the fabrication of carrier systems engineered to deliver therapeutics to the target site with sustained and controlled release kinetics. Herein, we report the fabrication of microparticles composed of two distinct compartments: i) one compartment containing a pH responsive polymer, acetal-modified dextran, and PLGA (polylactide-co-glycolide), and ii) one compartment composed entirely of PLGA. We demonstrate the complete release of dextran from the microparticles during a 10-hour period in an acidic pH environment and the complete degradation of one compartment in less than 24h. This is in congruence with the stability of the same microparticles in neutral pH over the 24-hour period. Such microparticles can be used as pH responsive carrier systems for drug delivery applications where their cargo will only be released when the optimum pH window is reached. The feasibility of the microparticle system for such an application was confirmed by encapsulating a cancer therapeutic, irinotecan, in the compartment containing the acetal-modified dextran polymer and the pH dependent release over a 5-day period was studied. It was found that upon pH change to an acidic environment, over 50% of the drug was first released at a rapid rate for 10h, similar to that observed for the dextran release, before continuing at a more controlled rate for 4 days. As such, these microparticles can play an important role in the fabrication of novel drug delivery systems due to the selective, controlled, and pH responsive release of their encapsulated therapeutics.
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Affiliation(s)
- Sahar Rahmani
- Department of Biomedical Engineering, University of Michigan, Ann Arbor 48109, USA; Biointerfaces Institute, University of Michigan, Ann Arbor 48109, USA
| | - Tae-Hong Park
- Department of Chemical Engineering, University of Michigan, Ann Arbor 48109, USA
| | - Acacia Frances Dishman
- Department of Biophysics, University of Michigan, Ann Arbor 48109, USA; Biointerfaces Institute, University of Michigan, Ann Arbor 48109, USA
| | - Joerg Lahann
- Department of Biomedical Engineering, University of Michigan, Ann Arbor 48109, USA; Department of Chemical Engineering, University of Michigan, Ann Arbor 48109, USA; Biointerfaces Institute, University of Michigan, Ann Arbor 48109, USA.
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Walther A, Müller AHE. Janus Particles: Synthesis, Self-Assembly, Physical Properties, and Applications. Chem Rev 2013; 113:5194-261. [DOI: 10.1021/cr300089t] [Citation(s) in RCA: 1328] [Impact Index Per Article: 120.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andreas Walther
- DWI at RWTH Aachen University − Institute for Interactive Materials Research, D-52056 Aachen, Germany
| | - Axel H. E. Müller
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz,
Germany
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Park TH, Lahann* J. Janus Particles with Distinct Compartments via Electrohydrodynamic Co-jetting. JANUS PARTICLE SYNTHESIS, SELF-ASSEMBLY AND APPLICATIONS 2012. [DOI: 10.1039/9781849735100-00054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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28
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Such GK, Johnston AP, Liang K, Caruso F. Synthesis and functionalization of nanoengineered materials using click chemistry. Prog Polym Sci 2012. [DOI: 10.1016/j.progpolymsci.2011.12.002] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Hwang S, Lahann J. Differentially degradable janus particles for controlled release applications. Macromol Rapid Commun 2012; 33:1178-83. [PMID: 22605558 DOI: 10.1002/marc.201200054] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 03/03/2012] [Indexed: 11/07/2022]
Abstract
Janus particles with differentially degradable compartments were prepared by electrohydrodynamic (EHD) co-jetting and subsequent controlled crosslinking. These bicompartmental particles are composed of an interpenetrating polymer network of poly(ethylene oxide) and poly(acrylamide-co-acrylic acid) in one hemisphere and a crosslinked copolymer of dextran and poly(acrylamide-co-acrylic acid) segments in the second compartment. The compositional anisotropy caused differential hydrolytic susceptibility: Although both compartments were stable at pH 3.0, selective degradation of the PEO-containing compartment pH 7.4 was observed within 5 days. Janus particles with differentially degradable polymer compartments may be of interest for a range of oral drug delivery applications because of their propensity for decoupled release profiles.
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Affiliation(s)
- Sangyeul Hwang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, 48109, USA
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Saha S, Copic D, Bhaskar S, Clay N, Donini A, Hart AJ, Lahann J. Chemically Controlled Bending of Compositionally Anisotropic Microcylinders. Angew Chem Int Ed Engl 2011; 51:660-5. [DOI: 10.1002/anie.201105387] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Revised: 10/12/2011] [Indexed: 11/11/2022]
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Saha S, Copic D, Bhaskar S, Clay N, Donini A, Hart AJ, Lahann J. Chemically Controlled Bending of Compositionally Anisotropic Microcylinders. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Lahann J. Recent progress in nano-biotechnology: compartmentalized micro- and nanoparticles via electrohydrodynamic co-jetting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:1149-56. [PMID: 21480519 DOI: 10.1002/smll.201002002] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 01/14/2011] [Indexed: 05/23/2023]
Abstract
Compartmentalized particles enable co-presentation of dissimilar sets of properties, thereby offering a broad design space for multifunctional particles. Electrohydrodynamic co-jetting is a simple, yet versatile fabrication technique that can be used to prepare such multicompartmental particles and fibers. Processing conditions are summarized for co-jetting of aqueous and organic polymer solutions as well as nanoparticle suspensions. Because particles can comprise distinct polymers in different compartments, selective surface modification becomes possible. The latter can result in unidirectional interactions with cells or may pave new routes towards targeted drug delivery.
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Affiliation(s)
- Joerg Lahann
- Department of Chemical Engineering, University of Michigan, Ann Arbor 48109, USA.
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Bhaskar S, Gibson CT, Yoshida M, Nandivada H, Deng X, Voelcker NH, Lahann J. Engineering, characterization and directional self-assembly of anisotropically modified nanocolloids. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:812-819. [PMID: 21302355 DOI: 10.1002/smll.201001695] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2010] [Indexed: 05/30/2023]
Abstract
Along with traditional attributes such as the size, shape, and chemical structure of polymeric micro-objects, control over material distribution, or selective compartmentalization, appears to be increasingly important for maximizing the functionality and efficacy of biomaterials. The fabrication of tri- and tetracompartmental colloids made from biodegradable poly(lactide-co-glycolide) polymers via electrohydrodynamic co-jetting is demonstrated. The presence of three compartments is confirmed via flow cytometry. Additional chemical functionality is introduced via the incorporation of acetylene-functionalized polymers into individual compartments of the particles. Direct visualization of the spatioselective distribution of acetylene groups is demonstrated by confocal Raman microscopy as well as by reaction of the acetylene groups with azide-biotin via 'click chemistry'. Biotin-streptavidin binding is then utilized for the controlled assembly and orientation of bicompartmental particles onto functionalized, micropatterned substrates prepared via chemical vapor deposition polymerization.
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Affiliation(s)
- Srijanani Bhaskar
- Macromolecular Science and Engineering, University of Michigan, Ann Arbor 48109, USA
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Yoon J, Lee KJ, Lahann J. Multifunctional polymer particles with distinct compartments. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10673b] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Lee KJ, Hwang S, Yoon J, Bhaskar S, Park TH, Lahann J. Compartmentalized Photoreactions within Compositionally Anisotropic Janus Microstructures. Macromol Rapid Commun 2010; 32:431-7. [DOI: 10.1002/marc.201000558] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2010] [Revised: 10/04/2010] [Indexed: 11/11/2022]
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Bhaskar S, Pollock KM, Yoshida M, Lahann J. Towards designer microparticles: simultaneous control of anisotropy, shape, and size. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:404-11. [PMID: 19937608 DOI: 10.1002/smll.200901306] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Biodegradable, compositionally anisotropic microparticles with two distinct compartments that exhibit controlled shapes and sizes are fabricated. These multifunctional particles are prepared by electrohydrodynamic co-jetting of poly(lactide-co-glycolide) polymer solutions. By varying different solution and process parameters, namely, concentration and flow rate, a variety of non-equilibrium bicompartmental shapes, such as discoid and rod-shaped microparticles are produced in high yields. Optimization of jetting parameters, combined with filtration, results in near-perfect, bicompartmental spherical particles in the size range of 3-5 microm. Simultaneous control over anisotropy, size, shape, and surface structure provides an opportunity to create truly multifunctional microparticles for a variety of biological applications, such as drug delivery, diagnostic assays, and theranostics.
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Affiliation(s)
- Srijanani Bhaskar
- Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, USA
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Pawar AB, Kretzschmar I. Fabrication, Assembly, and Application of Patchy Particles. Macromol Rapid Commun 2010; 31:150-68. [DOI: 10.1002/marc.200900614] [Citation(s) in RCA: 250] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 11/11/2009] [Indexed: 11/06/2022]
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Yoshida M, Roh KH, Mandal S, Bhaskar S, Lim D, Nandivada H, Deng X, Lahann J. Structurally Controlled Bio-hybrid Materials Based on Unidirectional Association of Anisotropic Microparticles with Human Endothelial Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2009; 21:4920-4925. [PMID: 25377943 DOI: 10.1002/adma.200901971] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2009] [Indexed: 05/21/2023]
Abstract
Biocompatible anisotropic polymer particles with bipolar affinity towards human endothelial cells are a novel type of building blocks for microstructured bio-hybrid materials. Functional polarity due to two biologically distinct hemispheres has been achieved by synthesis of anisotropic particles via electro-hydrodynamic co-jetting of two different polymer solutions and subsequent selective surface modification.
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Affiliation(s)
- Mutsumi Yoshida
- Department of Chemical Engineering The University of Michigan 3414 GGBL, 2300 Hayward Ann Arbor, MI 4809
| | - Kyung-Ho Roh
- Macromolecular Science and Engineering The University of Michigan Ann Arbor, MI 4809
| | - Suparna Mandal
- Department of Chemical Engineering The University of Michigan 3414 GGBL, 2300 Hayward Ann Arbor, MI 4809
| | - Srijanani Bhaskar
- Macromolecular Science and Engineering The University of Michigan Ann Arbor, MI 4809
| | - Dongwoo Lim
- Department of Chemical Engineering The University of Michigan 3414 GGBL, 2300 Hayward Ann Arbor, MI 4809
| | - Himabindu Nandivada
- Department of Chemical Engineering The University of Michigan 3414 GGBL, 2300 Hayward Ann Arbor, MI 4809
| | - Xiaopei Deng
- Macromolecular Science and Engineering The University of Michigan Ann Arbor, MI 4809
| | - Joerg Lahann
- Department of Chemical Engineering The University of Michigan 3414 GGBL, 2300 Hayward Ann Arbor, MI 4809
- Macromolecular Science and Engineering The University of Michigan Ann Arbor, MI 4809
- Department of Materials Science and Engineering The University of Michigan Ann Arbor, MI 4809
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Abstract
Biomaterials form the basis of current and future biomedical technologies. They are routinely used to design therapeutic carriers, such as nanoparticles, for applications in drug delivery. Current strategies for synthesizing drug delivery carriers are based either on discovery of materials or development of fabrication methods. While synthetic carriers have brought upon numerous advances in drug delivery, they fail to match the sophistication exhibited by innate biological entities. In particular, red blood cells (RBCs), the most ubiquitous cell type in the human blood, constitute highly specialized entities with unique shape, size, mechanical flexibility, and material composition, all of which are optimized for extraordinary biological performance. Inspired by this natural example, we synthesized particles that mimic the key structural and functional features of RBCs. Similar to their natural counterparts, RBC-mimicking particles described here possess the ability to carry oxygen and flow through capillaries smaller than their own diameter. Further, they can also encapsulate drugs and imaging agents. These particles provide a paradigm for the design of drug delivery and imaging carriers, because they combine the functionality of natural RBCs with the broad applicability and versatility of synthetic drug delivery particles.
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Lim DW, Hwang S, Uzun O, Stellacci F, Lahann J. Compartmentalization of Gold Nanocrystals in Polymer Microparticles using Electrohydrodynamic Co-Jetting. Macromol Rapid Commun 2009; 31:176-82. [DOI: 10.1002/marc.200900597] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Revised: 09/22/2009] [Indexed: 11/07/2022]
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Mandal S, Bhaskar S, Lahann J. Micropatterned Fiber Scaffolds for Spatially Controlled Cell Adhesion. Macromol Rapid Commun 2009; 30:1638-44. [DOI: 10.1002/marc.200900340] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2009] [Accepted: 05/19/2009] [Indexed: 11/11/2022]
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