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Fluksman A, Lafuente A, Braunstein R, Steinberg E, Friedman N, Yekhin Z, Roca AG, Nogues J, Hazan R, Sepulveda B, Benny O. Modular Drug-Loaded Nanocapsules with Metal Dome Layers as a Platform for Obtaining Synergistic Therapeutic Biological Activities. ACS APPLIED MATERIALS & INTERFACES 2023; 15:50330-50343. [PMID: 37861446 PMCID: PMC10623511 DOI: 10.1021/acsami.3c07188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 09/29/2023] [Indexed: 10/21/2023]
Abstract
Multifunctional drug-loaded polymer-metal nanocapsules have attracted increasing attention in drug delivery due to their multifunctional potential endowed by drug activity and response to physicochemical stimuli. Current chemical synthesis methods of polymer/metal capsules require specific optimization of the different components to produce particles with precise properties, being particularly complex for Janus structures combining polymers and ferromagnetic and highly reactive metals. With the aim to generate tunable synergistic nanotherapeutic actuation with enhanced drug effects, here we demonstrate a versatile hybrid chemical/physical fabrication strategy to incorporate different functional metals with tailored magnetic, optical, or chemical properties on solid drug-loaded polymer nanoparticles. As archetypical examples, we present poly(lactic-co-glycolic acid) (PLGA) nanoparticles (diameters 100-150 nm) loaded with paclitaxel, indocyanine green, or erythromycin that are half-capped by either Fe, Au, or Cu layers, respectively, with application in three biomedical models. The Fe coating on paclitaxel-loaded nanocapsules permitted efficient magnetic enhancement of the cancer spheroid assembly, with 40% reduction of the cross-section area after 24 h, as well as a higher paclitaxel effect. In addition, the Fe-PLGA nanocapsules enabled external contactless manipulation of multicellular cancer spheroids with a speed of 150 μm/s. The Au-coated and indocyanine green-loaded nanocapsules demonstrated theranostic potential and enhanced anticancer activity in vitro and in vivo due to noninvasive fluorescence imaging with long penetration near-infrared (NIR) light and simultaneous photothermal-photodynamic actuation, showing a 3.5-fold reduction in the tumor volume growth with only 5 min of NIR illumination. Finally, the Cu-coated erythromycin-loaded nanocapsules exhibited enhanced antibacterial activity with a 2.5-fold reduction in the MIC50 concentration with respect to the free or encapsulated drug. Altogether, this technology can extend a nearly unlimited combination of metals, polymers, and drugs, thus enabling the integration of magnetic, optical, and electrochemical properties in drug-loaded nanoparticles to externally control and improve a wide range of biomedical applications.
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Affiliation(s)
- Arnon Fluksman
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Aritz Lafuente
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Universitat
Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Ron Braunstein
- Institute
of Biomedical and Oral Research (IBOR), Faculty of Dental Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Eliana Steinberg
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Nethanel Friedman
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Zhanna Yekhin
- Department
of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah
Medical Center, The Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Alejandro G. Roca
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Josep Nogues
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Ronen Hazan
- Institute
of Biomedical and Oral Research (IBOR), Faculty of Dental Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Borja Sepulveda
- Instituto
de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Ofra Benny
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
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2
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Larrea A, Arruebo M, Serra CA, Sebastián V. Trojan pH-Sensitive Polymer Particles Produced in a Continuous-Flow Capillary Microfluidic Device Using Water-in-Oil-in-Water Double-Emulsion Droplets. MICROMACHINES 2022; 13:mi13060878. [PMID: 35744492 PMCID: PMC9230220 DOI: 10.3390/mi13060878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 12/04/2022]
Abstract
A facile and robust microfluidic method to produce nanoparticle-in-microparticle systems (Trojan systems) is reported as a delivery vector for the oral administration of active pharmaceutical ingredients. The microfluidic system is based on two coaxial capillaries that produce monodisperse water-in-oil-in-water (W/O/W) double emulsions in a highly controlled fashion with precise control over the resulting particle structure, including the core and shell dimensions. The influence of the three phase flow rates, pH and drying process on the formation and overall size is evaluated. These droplets are then used as templates for the production of pH-sensitive Trojan microparticles after solvent evaporation. The shell of Trojan microparticles is made of Eudragit®, a methacrylic acid-ethyl acrylate copolymer that would enable the Trojan microparticle payload to first pass through the stomach without being degraded and then dissolve in the intestinal fluid, releasing the inner payload. The synthesis of the pH-sensitive Trojan microparticles was also compared with a conventional batch production method. The payloads considered in this work were different in nature: (1) fluorescein, to validate the feasibility of the polymeric shell to protect the payload under gastric pH; (2) poly(D,L-lactic acid/glycolic acid)-PLGA nanoparticles loaded with the antibiotic rifampicin. These PLGA nanoparticles were produced also using a microfluidic continuous process and (3) PLGA nanoparticles loaded with Au nanoparticles to trace the PLGA formulation under different environments (gastric and intestinal), and to assess whether active pharmaceutical ingredient (API) encapsulation in PLGA is due efficiently. We further showed that Trojan microparticles released the embedded PLGA nanoparticles in contact with suitable media, as confirmed by electron microscopy. Finally, the results show the possibility of developing Trojan microparticles in a continuous manner with the ability to deliver therapeutic nanoparticles in the gastrointestinal tract.
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Affiliation(s)
- Ane Larrea
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; (A.L.); (M.A.)
| | - Manuel Arruebo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; (A.L.); (M.A.)
- Department of Chemical Engineering, Campus Río Ebro-Edificio I+D, University of Zaragoza, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
| | - Christophe A. Serra
- Université de Strasbourg, CNRS, ICS UPR 22, F-67000 Strasbourg, France
- Correspondence: (C.A.S.); (V.S.)
| | - Victor Sebastián
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; (A.L.); (M.A.)
- Department of Chemical Engineering, Campus Río Ebro-Edificio I+D, University of Zaragoza, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
- Laboratorio de Microscopías Avanzadas, Universidad de Zaragoza, 50018 Zaragoza, Spain
- Correspondence: (C.A.S.); (V.S.)
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3
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Synthesis of non-spherical polymer particles using the activated swelling method. J Colloid Interface Sci 2021; 611:377-389. [PMID: 34971960 DOI: 10.1016/j.jcis.2021.11.082] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/09/2021] [Accepted: 11/15/2021] [Indexed: 12/17/2022]
Abstract
The preparation of particles with non-spherical shapes is a challenging endeavor, often requiring a significant ingenuity, complex experimental procedures and difficulties to obtain reproducible results. In this work we prove that monodisperse non-spherical polymer particles possessing asymmetric Janus structure can be easily produced by using an activated swelling method in combination with a control of the rate of free radical polymerization through the addition of the inhibitors 4-methoxyphenol (MEHQ) and O2. Monodisperse non cross-linked polystyrene particles, used as seeds, are activated by the addition of an initiator, which promotes their swelling ability, and then swollen with a monomers mixture (methyl methacrylate, glycidyl methacrylate and ethylene glycol dimethacrylate), before being polymerized in presence of both MEHQ and O2. Our results show that only when both MEHQ and O2 are present during the course of the polymerization, the particles shape can be controlled, from spherical to asymmetrical. A variety of particles shapes can be obtained, ranging from dimpled spheres, flattened spheres and Janus particles by varying the swelling ratio, always with excellent monodispersity and reproducibility. Finally, to provide even more complex functionalities to these non-spherical polymer particles, iron oxide nanocrystals were grown within the polymer matrix resulting in superparamagnetic particles.
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4
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Forigua A, Kirsch RL, Willerth SM, Elvira KS. Recent advances in the design of microfluidic technologies for the manufacture of drug releasing particles. J Control Release 2021; 333:258-268. [PMID: 33766691 DOI: 10.1016/j.jconrel.2021.03.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/26/2022]
Abstract
Drug releasing particles are valued for their ability to deliver therapeutics to targeted locations and for their controllable release patterns. The development of microfluidic technologies, which are designed specifically to manipulate small amounts of fluids, to manufacture particles for drug delivery applications reflects a recent trend due to the advantages they confer in terms of control over particle size and material composition. This review takes a comprehensive look at the different types of microfluidic devices used to fabricate such particles from different types of biomaterials, and at how the on-chip features enable the production of particles with different types of properties. The review concludes by suggesting avenues for future work that will enable these technologies to fulfill their potential and be used in industrial settings for the manufacture of drug releasing particles with unique capabilities.
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Affiliation(s)
- Alejandro Forigua
- Department of Chemistry, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Rebecca L Kirsch
- Department of Chemistry, University of Victoria, Victoria, BC V8W 2Y2, Canada; Department of Mechanical Engineering, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Stephanie M Willerth
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8W 2Y2, Canada; Division of Medical Sciences, University of Victoria, Victoria, BC V8W 2Y2, Canada.
| | - Katherine S Elvira
- Department of Chemistry, University of Victoria, Victoria, BC V8W 2Y2, Canada.
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5
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Preparation of TiO2 Nanoparticle Aggregates and Capsules by the ‘Two-Emulsion Method’. COLLOIDS AND INTERFACES 2020. [DOI: 10.3390/colloids4040057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
TiO2-based materials are of great practical interest in several technological areas. Both the size and the morphology of the TiO2 particles are of critical importance for their applications. The current study explores the effect of several factors on the outcome of the TiO2 particle synthesis via the so-called ‘two-emulsion method’. In this technique, two water-in-oil emulsions—each of them containing different reactant in the dispersed water drops—are mixed under well controlled conditions. Upon such mixing, partial coalescence of the water drops from the two emulsions leads to mixing of the drop content, with chemical reaction occurring within the drops, and to synthesis of Ti(OH)4 particles. Afterwards, the latter are transformed by emulsion heating into TiO2 particles and aggregates of predominantly anatase structure. Our results show that—depending on the precursor and surfactant concentrations, oil viscosity, emulsification time, and mixing speed—the obtained nanoparticles could aggregate either on the drop surface, forming capsules with a very smooth surface, or inside the water droplets, thus leading to hierarchically structured aggregates of micrometer size. The spherical smooth capsules are constructed of very small monodisperse TiO2 nanoparticles with size below 5 nm. The hierarchical bulk aggregates, on the other hand, are formed from bigger primary particles of sub-micrometer size. The obtained results show that one can obtain various TiO2 structures by controlling the conditions during the emulsion preparation and mixing
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6
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Ortiz de Solorzano I, Mendoza G, Arruebo M, Sebastian V. Customized hybrid and NIR-light triggered thermoresponsive drug delivery microparticles synthetized by photopolymerization in a one-step flow focusing continuous microreactor. Colloids Surf B Biointerfaces 2020; 190:110904. [DOI: 10.1016/j.colsurfb.2020.110904] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/10/2020] [Accepted: 02/24/2020] [Indexed: 12/28/2022]
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7
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Zhang C, Yang L, Wan F, Bera H, Cun D, Rantanen J, Yang M. Quality by design thinking in the development of long-acting injectable PLGA/PLA-based microspheres for peptide and protein drug delivery. Int J Pharm 2020; 585:119441. [PMID: 32442645 DOI: 10.1016/j.ijpharm.2020.119441] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 12/20/2022]
Abstract
Adopting the Quality by Design (QbD) approach in the drug development process has transformed from "nice-to-do" into a crucial and required part of the development, ensuring the quality of pharmaceutical products throughout their whole life cycles. This review is discussing the implementation of the QbD thinking into the production of long-acting injectable (LAI) PLGA/PLA-based microspheres for the therapeutic peptide and protein drug delivery. Various key elements of the QbD approaches are initially elaborated using Bydureon®, a commercial product of LAI PLGA/PLA-based microspheres, as a classical example. Subsequently, the factors influencing the release patterns and the stability of the peptide and protein drugs are discussed. This is followed by a summary of the state-of-the-art of manufacturing LAI PLGA/PLA-based microspheres and the related critical process parameters (CPPs). Finally, a landscape of generic product development of LAI PLGA/PLA-based microspheres is reviewed including some major challenges in the field.
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Affiliation(s)
- Chengqian Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road 103, 110016 Shenyang, China
| | - Liang Yang
- CSPC ZhongQi Pharmaceutical Technology (Shijiazhuang) Company, Ltd, Huanghe Road 226, 050035 Shijiazhuang, China
| | - Feng Wan
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Hriday Bera
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road 103, 110016 Shenyang, China
| | - Dongmei Cun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road 103, 110016 Shenyang, China
| | - Jukka Rantanen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Mingshi Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road 103, 110016 Shenyang, China; Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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8
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Nguyen DHK, Bazaka O, Bazaka K, Crawford RJ, Ivanova EP. Three-Dimensional Hierarchical Wrinkles on Polymer Films: From Chaotic to Ordered Antimicrobial Topographies. Trends Biotechnol 2020; 38:558-571. [PMID: 32302580 DOI: 10.1016/j.tibtech.2019.12.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/22/2019] [Accepted: 12/06/2019] [Indexed: 12/11/2022]
Abstract
Microbial contamination of polymer surfaces has become a significant challenge in domestic, industrial, and biomedical applications. Recent progress in our understanding of how topographical features of different length scales can be used to effectively and selectively control the attachment and proliferation of different cell types has provided an alternative strategy for imparting antibacterial activity to these surfaces. Among the well-recognized engineered models of antibacterial surface topographies, self-organized wrinkles have shown particular promise with respect to their antimicrobial characteristics. Here, we critically review the mechanisms by which wrinkles form on the surface of different types of polymer material and how they interact with various biomolecules and cell types. We also discuss the feasibility of using this antimicrobial strategy in real-life biomedical applications.
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Affiliation(s)
- Duy H K Nguyen
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne 3000, VIC, Australia
| | - Olha Bazaka
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne 3000, VIC, Australia
| | - Kateryna Bazaka
- Research School of Electrical Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra ACT 2600, Australia
| | - Russell J Crawford
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne 3000, VIC, Australia
| | - Elena P Ivanova
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne 3000, VIC, Australia.
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9
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Yang H, Lu X, Xin Z. Facile Fabrication of Lilium Pollen-like Organosilica Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:571-575. [PMID: 31916762 DOI: 10.1021/acs.langmuir.9b02627] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Organosilica particles with a novel lilium pollen-like morphology were synthesized by a one-step sol-gel method. The hydrolysis and co-condensation of vinyltrimethoxysilane (VTMS) and tetraethoxysilane (TEOS) took place in an aqueous medium with ammonia as the catalyst. The growth process of the organosilica particles was tracked by scanning electron microscopy (SEM). The bulk and surface composition of the lilium pollen-like organosilica particles were characterized by solid-state 29Si nuclear magnetic resonance (NMR) spectroscopy and X-ray photoelectron spectroscopy (XPS), respectively. In addition, bowl-like, golf ball-like, and walnut kernel-like organosilica particles could also be obtained by changing the concentration of ammonia, the amount of silane precursors, or the reaction medium. This study provides a facile method to prepare nonspherical organosilica particles with controllable morphologies.
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Affiliation(s)
- Huayu Yang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, School of Chemical Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Xin Lu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, School of Chemical Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Zhong Xin
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, School of Chemical Engineering , East China University of Science and Technology , Shanghai 200237 , China
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10
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Wang J, Le-The H, Wang Z, Li H, Jin M, van den Berg A, Zhou G, Segerink LI, Shui L, Eijkel JCT. Microfluidics Assisted Fabrication of Three-Tier Hierarchical Microparticles for Constructing Bioinspired Surfaces. ACS NANO 2019; 13:3638-3648. [PMID: 30856322 DOI: 10.1021/acsnano.9b00245] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Construction of textured bioinspired surfaces with refined structures that exhibit superior wetting properties is of great importance for many applications ranging from self-cleaning, antibiofouling, anti-icing, oil/water separation, smart membrane, and microfluidic devices. Previously, the preparation of artificial surfaces generally relies on the combination of different approaches together, which is a lack of flexibility to control over the individual architecture unit, the surface topology, as well as the complex procedure needed. In this work, we report a method for rapid fabrication of three-tier hierarchical microunits (structures consisting of multiple levels) using a facile droplet microfluidics approach. These units include the first-tier microspheres consisting of the second-tier close-packed polystyrene (PS) nanoparticles decorated with the third-tier elegant polymer nanowrinkles. These nanowrinkles on the PS nanoparticles are formed according to the interfacial instability induced by gradient photopolymerization of N-isopropylacrylamide (NIPAM) monomers. The formation process and topologies of nanowrinkles can be regulated by the photopolymerization process and the fraction of carboxylic groups on the PS nanoparticle surface. Such a hierarchical microsphere mimics individual units of bioinspired surfaces. Therefore, the surfaces from self-assembly of these fabricated two-tier and three-tier hierarchical microunits collectively exhibit "gecko" and "rose petal" wetting states, with the micro- and nanoscale structures amplifying the initial hydrophobicity but still being highly adhesive to water. This approach offers promising advantages of high-yield fabrication, precise control over the size and component of the microspheres, and integration of microfluidic droplet generation, colloidal nanoparticle self-assembly, and interfacial polymerization-induced nanowrinkles in a straightforward manner.
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Affiliation(s)
- Juan Wang
- National Center for International Research on Green Optoelectronics and South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , China
- BIOS Lab-on-a-Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre and Max Planck Center for Complex Fluid Dynamics , University of Twente , Enschede 7522NB , The Netherlands
| | - Hai Le-The
- BIOS Lab-on-a-Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre and Max Planck Center for Complex Fluid Dynamics , University of Twente , Enschede 7522NB , The Netherlands
| | - Zuankai Wang
- Department of Mechanical and Biomedical Engineering , City University of Hong Kong , Hong Kong 999077 , China
| | - Hao Li
- National Center for International Research on Green Optoelectronics and South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , China
| | - Mingliang Jin
- National Center for International Research on Green Optoelectronics and South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , China
| | - Albert van den Berg
- BIOS Lab-on-a-Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre and Max Planck Center for Complex Fluid Dynamics , University of Twente , Enschede 7522NB , The Netherlands
| | - Guofu Zhou
- National Center for International Research on Green Optoelectronics and South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , China
| | - Loes I Segerink
- BIOS Lab-on-a-Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre and Max Planck Center for Complex Fluid Dynamics , University of Twente , Enschede 7522NB , The Netherlands
| | - Lingling Shui
- National Center for International Research on Green Optoelectronics and South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , China
- School of Information and Optoelectronic Science and Engineering , South China Normal University , Guangzhou 510006 , China
| | - Jan C T Eijkel
- BIOS Lab-on-a-Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre and Max Planck Center for Complex Fluid Dynamics , University of Twente , Enschede 7522NB , The Netherlands
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11
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Yang H, Lu X, Xin Z. One-Step Synthesis of Nonspherical Organosilica Particles with Tunable Morphology. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11723-11728. [PMID: 30226046 DOI: 10.1021/acs.langmuir.8b01446] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A one-step sol-gel method was developed to synthesize nonspherical organosilica particles with tunable morphology. The morphology of organosilica particles can be tuned from spherical to golf ball-like or bowl-like through varying the molar ratio of tetraethoxysilane (TEOS) to vinyltrimethoxysilane (VTMS) in the precursors. The morphology and interior structure of the organosilica particles were observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively. The effect of ammonia concentration on the morphology of organosilica particles was investigated. The growth process of golf ball-like and bowl-like particles was tracked by SEM in detail, and the formation mechanism of nonspherical organosilica particles was also proposed.
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Affiliation(s)
- Huayu Yang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, School of Chemical Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Xin Lu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, School of Chemical Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Zhong Xin
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, School of Chemical Engineering , East China University of Science and Technology , Shanghai 200237 , China
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12
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Liu Z, Li G, Zheng Z, Li Y, Han Y, Kaplan DL, Wang X. Silk fibroin-based woven endovascular prosthesis with heparin surface modification. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:46. [PMID: 29651619 DOI: 10.1007/s10856-018-6055-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
A novel seamless silk fibroin-based endovascular prosthesis (SFEPs) with bifurcated woven structure and anticoagulant function for the improvement of patency is described. The SFEPs were prepared from silk fibroin (SF) and polyester filaments using an installed weaving machine. The production processing parameters were optimized using orthogonal design methods. The inner surface of SFEPs was modified with polyethylenimine (PEI) and EDC/NHS-activated low-molecular-weight heparin (LMWH) to enhance anticoagulant function. The surface morphology and mechanical properties of the SFEPs were evaluated according to standard protocols. The thickness of modified SFEPs was lower than 0.085 ± 0.004 mm and water permeability was lower than 5.19 ± 0.30 mL/(cm2 × min). The results of mechanical properties showed that the diametral tensile strength and burst strength reached 61.6 ± 1.8 and 23.7 ± 2.2 MPa, respectively. Automatic coagulometer and energy-dispersive X-ray (EDX) confirmed LMWH immobilization on the surface of the SFEPs and the blood compatibility was improved with the heparin modification with PEI polymerization. In conclusion, the new prosthesis has potential applications in the blood vessel repairs where minimal thickness but superior mechanical strength and biocompatibility are important.
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Affiliation(s)
- Zekun Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China.
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China
| | - Yuling Li
- College of Textiles, Donghua University, 201620, Shanghai, China
| | - Yifan Han
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - David L Kaplan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA, 02155, USA
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China.
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA, 02155, USA.
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13
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Abstract
Droplet microfluidics generates and manipulates discrete droplets through immiscible multiphase flows inside microchannels. Due to its remarkable advantages, droplet microfluidics bears significant value in an extremely wide range of area. In this review, we provide a comprehensive and in-depth insight into droplet microfluidics, covering fundamental research from microfluidic chip fabrication and droplet generation to the applications of droplets in bio(chemical) analysis and materials generation. The purpose of this review is to convey the fundamentals of droplet microfluidics, a critical analysis on its current status and challenges, and opinions on its future development. We believe this review will promote communications among biology, chemistry, physics, and materials science.
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Affiliation(s)
- Luoran Shang
- 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
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
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14
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Yang F, Chen D, Guo ZF, Zhang YM, Liu Y, Askin S, Craig DQM, Zhao M. The application of novel nano-thermal and imaging techniques for monitoring drug microstructure and distribution within PLGA microspheres. Int J Pharm 2017; 522:34-49. [PMID: 28235626 DOI: 10.1016/j.ijpharm.2017.02.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 02/18/2017] [Accepted: 02/20/2017] [Indexed: 12/18/2022]
Abstract
Poly (d,l-lactic-co-glycolic) acid (PLGA) based microspheres have been extensively used as controlled drug release systems. However, the burst effect has been a persistent issue associated with such systems, especially for those prepared by the double emulsion technique. An effective approach to preventing the burst effect and achieving a more ideal drug release profile is to improve the drug distribution within the polymeric matrix. Therefore, it is of great importance to establish a rapid and robust tool for screening and optimizing the drug distribution during pre-formulation. Transition Temperature Microscopy (TTM), a novel nano-thermal and imaging technique, is an extension of nano-thermal analysis (nano-TA) whereby a transition temperature is detected at a localized region of a sample and then designated a color based on a particular temperature/color palette, finally resulting in a coded map based on transition temperatures detected by carrying out a series of nanoTA measurements across the surface of the sample. In this study, we investigate the feasibility of applying the aforementioned technique combined with other thermal, imaging and structural techniques for monitoring the drug microstructure and spatial distribution within bovine serum albumin (BSA) loaded and nimodipine loaded PLGA microspheres, with a view to better predicting the in vitro drug release performance.
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Affiliation(s)
- Fan Yang
- Department of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - De Chen
- Department of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Zhe-Fei Guo
- Department of Pharmacy, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510000, China
| | - Yong-Ming Zhang
- Department of Pharmacy, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510000, China
| | - Yi Liu
- Department of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Sean Askin
- UCL School of Pharmacy,29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Duncan Q M Craig
- UCL School of Pharmacy,29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Min Zhao
- UCL School of Pharmacy,29-39 Brunswick Square, London, WC1N 1AX, UK; Queen's University Belfast School of Pharmacy,97 Lisburn Road, Belfast, BT9 7BL, UK.
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15
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Oliveira AF, Pessoa ACSN, Bastos RG, de la Torre LG. Microfluidic tools toward industrial biotechnology. Biotechnol Prog 2016; 32:1372-1389. [DOI: 10.1002/btpr.2350] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/15/2016] [Indexed: 01/29/2023]
Affiliation(s)
- Aline F. Oliveira
- Department of Bioprocesses and Materials Engineering, School of Chemical Engineering, University of Campinas; 500 Albert Einstein avenue Campinas P.O. Box 6066
| | - Amanda C. S. N. Pessoa
- Department of Bioprocesses and Materials Engineering, School of Chemical Engineering, University of Campinas; 500 Albert Einstein avenue Campinas P.O. Box 6066
| | - Reinaldo G. Bastos
- Department of Agroindustrial Technology and Rural Socioeconomy, Center of Agricultural Sciences, Federal University of São Carlos; Km 174 Anhanguera Highway Araras P.O. Box 153
| | - Lucimara G. de la Torre
- Department of Bioprocesses and Materials Engineering, School of Chemical Engineering, University of Campinas; 500 Albert Einstein avenue Campinas P.O. Box 6066
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16
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Uskoković V, Ghosh S. Carriers for the tunable release of therapeutics: etymological classification and examples. Expert Opin Drug Deliv 2016; 13:1729-1741. [PMID: 27322661 DOI: 10.1080/17425247.2016.1200558] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Introduction Physiological processes at the molecular level take place at precise spatiotemporal scales, which vary from tissue to tissue and from one patient to another, implying the need for carriers that enable tunable release of therapeutics. Areas covered Classification of all drug release to intrinsic and extrinsic is proposed, followed by the etymological clarification of the term 'tunable' and its distinction from the term 'tailorable'. Tunability is defined as analogous to tuning a guitar string or a radio receiver to the right frequency using a single knob. It implies changing a structural parameter along a continuous quantitative scale and correlating it numerically with the release kinetics. Examples of tunable, tailorable and environmentally responsive carriers are given, along with the parameters used to achieve these levels of control. Expert opinion Interdependence of multiple variables defining the carrier microstructure obstructs the attempts to elucidate parameters that allow for the independent tuning of release kinetics. Learning from the tunability of nanostructured materials and superstructured metamaterials can be a fruitful source of inspiration in the quest for the new generation of tunable release carriers. The greater intersection of traditional materials sciences and pharmacokinetic perspectives could foster the development of more sophisticated mechanisms for tunable release.
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Affiliation(s)
- Vuk Uskoković
- a Department of Bioengineering , University of Illinois , Chicago , IL , USA.,b Department of Biomedical and Pharmaceutical Sciences , Chapman University , Irvine , CA , USA
| | - Shreya Ghosh
- a Department of Bioengineering , University of Illinois , Chicago , IL , USA
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