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Babkin IA, Bammens S, Schiettecatte P, Van Avermaet H, Hens Z, Mooter GVD, Clasen C. Encapsulation of Cadmium-Free InP-based Quantum Dots in Cross-Linked Core-Shell Microparticles via Coaxial Electrospraying. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401219. [PMID: 38764319 DOI: 10.1002/smll.202401219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Indexed: 05/21/2024]
Abstract
Quantum dots (QDs) are inorganic semiconductor nanocrystals capable of emitting light. The current major challenge lies in the use of heavy metals, which are known to be highly toxic to humans and pose significant environmental risks. Researchers have turned to indium (In) as a promising option for more environmentally benign QDs, specifically indium phosphide (InP). A significant obstacle remains in sustaining the long-term photostability of InP-based QDs when exposed to the environment. To tackle this, electrospraying is used in this work to protect indium phosphide/zinc selenide/zinc sulfide (InP/ZnSe/ZnS) QDs by embedding them within polymer core-shell microparticles of poly[(lauryl methacrylate)-co-(ethylene glycol dimethacrylate)]/poly(methyl methacrylate) (poly(LMA-co-EGDMA)/PMMA). During the flight of droplets, the liquid monomer core of LMA and EGDMA with QDs is encapsulated by the solid shell of PMMA formed due to solvent evaporation, resulting in a liquid-core/solid-shell particle structure. After that, the captured core of monomers is polymerized into a cross-linked polymer with the embedded QDs via a thermal initiation. They demonstrate how a successful core-shell particle formation is achieved to produce structures for initially liquid monomer systems via coaxial electrospraying that are used for cross-linked polymers, which are of major interest for the encapsulation of InP-based QDs for generally improved photostability over pristine QDs.
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Affiliation(s)
- Iurii Alekseevich Babkin
- Department of Chemical Engineering, Soft Matter, Rheology and Technology (SMaRT), KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Simon Bammens
- Department of Chemical Engineering, Soft Matter, Rheology and Technology (SMaRT), KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Pieter Schiettecatte
- Physics and Chemistry of Nanostructures (PCN), University of Ghent, Krijgslaan 281-S3, Gent, 9000, Belgium
| | - Hannes Van Avermaet
- Physics and Chemistry of Nanostructures (PCN), University of Ghent, Krijgslaan 281-S3, Gent, 9000, Belgium
| | - Zeger Hens
- Physics and Chemistry of Nanostructures (PCN), University of Ghent, Krijgslaan 281-S3, Gent, 9000, Belgium
| | - Guy Van den Mooter
- Department of Pharmaceutical and Pharmacological Sciences, Drug Delivery and Disposition, KU Leuven, Campus Gasthuisberg ON2, Herestraat 49 b921, Leuven, 3000, Belgium
| | - Christian Clasen
- Department of Chemical Engineering, Soft Matter, Rheology and Technology (SMaRT), KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
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Lee KH, Noesges BA, McPherson C, Khan F, Brillson LJ, Winter JO. Oxidation of quantum dots encapsulated in block copolymer micelles as a function of polymer terminal charge. NANOSCALE 2022; 14:11779-11789. [PMID: 35920737 DOI: 10.1039/d2nr00778a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Most high-quality quantum dots (QDs) are synthesized in the organic phase, and are often coated with polymers for use in aqueous biological environments. QDs can exhibit fluorescence losses during phase transfer, but evaluating underlying mechanisms (e.g., oxidation, surface etching, loss of colloidal stability) can be challenging because of variation in synthesis methods. Here, fluorescence stability of QDs encapsulated in block co-polymer (BCP) micelles was investigated as a function of BCP terminal functionalization (i.e., -OH, -COOH, and -NH2 groups) and synthesis method (i.e., electrohydrodynamic emulsification-mediated selfassembly (EE-SA), sonication, and manual shaking). Fluorescence losses, fluorescence intensity, energy spectra, and surface composition were assessed using spectrofluorometry and cathodoluminescence spectroscopy (CL) with integrated X-ray photoemission spectroscopy (XPS). QDs passivated using charged BCPs exhibited 50-80% lower fluorescence intensity than those displaying neutral groups (e.g., -OH), which CL/XPS revealed to result from oxidation of surface Cd to CdO. Fluorescence losses were higher for processes with slow formation speed, but minimized in the presence of poly(vinyl alcohol) (PVA) surfactant. These data suggest slower BCP aggregation kinetics rather than electrostatic chain repulsion facilitated QD oxidation. Thus, polymer coating method and BCP structure influence QD oxidation during phase transfer and should be selected to maximize fast aggregation kinetics.
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Affiliation(s)
- Kil Ho Lee
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
| | - Brenton A Noesges
- Department of Physics, The Ohio State University, 191 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Chris McPherson
- Department of Physics, The Ohio State University, 191 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Faiz Khan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
| | - Leonard J Brillson
- Department of Physics, The Ohio State University, 191 W. Woodruff Ave., Columbus, OH 43210, USA
- Department of Electrical and Computer Engineering, The Ohio State University, 205 Dreese Lab, 2015 Neil Ave, Columbus, OH 43210, USA
| | - Jessica O Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
- Department of Biomedical Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA
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Zhang X, Qu Q, Zhou A, Wang Y, Zhang J, Xiong R, Lenders V, Manshian BB, Hua D, Soenen SJ, Huang C. Core-shell microparticles: From rational engineering to diverse applications. Adv Colloid Interface Sci 2022; 299:102568. [PMID: 34896747 DOI: 10.1016/j.cis.2021.102568] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/16/2021] [Accepted: 11/20/2021] [Indexed: 12/24/2022]
Abstract
Core-shell microparticles, composed of solid, liquid, or gas bubbles surrounded by a protective shell, are gaining considerable attention as intelligent and versatile carriers that show great potential in biomedical fields. In this review, an overview is given of recent developments in design and applications of biodegradable core-shell systems. Several emerging methodologies including self-assembly, gas-shearing, and coaxial electrospray are discussed and microfluidics technology is emphasized in detail. Furthermore, the characteristics of core-shell microparticles in artificial cells, drug release and cell culture applications are discussed and the superiority of these advanced multi-core microparticles for the generation of artificial cells is highlighted. Finally, the respective developing orientations and limitations inherent to these systems are addressed. It is hoped that this review can inspire researchers to propel the development of this field with new ideas.
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Lee KH, Khan FN, Cosby L, Yang G, Winter JO. Polymer Concentration Maximizes Encapsulation Efficiency in Electrohydrodynamic Mixing Nanoprecipitation. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.719710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Encapsulation in self-assembled block copolymer (BCP) based nanoparticles (NPs) is a common approach to enhance hydrophobic drug solubility, and nanoprecipitation processes in particular can yield high encapsulation efficiency (EE). However, guiding principles for optimizing polymer, drug, and solvent selection are critically needed to facilitate rapid design of drug nanocarriers. Here, we evaluated the relationship between drug-polymer compatibility and concentration ratios on EE and nanocarrier size. Our studies employed a panel of four drugs with differing molecular structures (i.e., coumarin 6, dexamethasone, vorinostat/SAHA, and lutein) and two BCPs [poly(caprolactone)-b-poly(ethylene oxide) (PCL-b-PEO) and poly(styrene)-b-poly(ethylene oxide) (PS-b-PEO)] synthesized using three nanoprecipitation processes [i.e., batch sonication, continuous flow flash nanoprecipitation (FNP), and electrohydrodynamic mixing-mediated nanoprecipitation (EM-NP)]. Continuous FNP and EM-NP processes demonstrated up to 50% higher EE than batch sonication methods, particularly for aliphatic compounds. Drug-polymer compatibilities were assessed using Hansen solubility parameters, Hansen interaction spheres, and Flory Huggins interaction parameters, but few correlations were EE observed. Although some Hansen solubility (i.e., hydrogen bonding and total) and Flory Huggins interaction parameters were predictive of drug-polymer preferences, no parameter was predictive of EE trends among drugs. Next, the relationship between polymer: drug molar ratio and EE was assessed using coumarin 6 as a model drug. As polymer:drug ratio increased from <1 to 3–6, EE approached a maximum (i.e., ∼51% for PCL BCPs vs. ∼44% PS BCPs) with Langmuir adsorption behavior. Langmuir behavior likely reflects a formation mechanism in which drug aggregate growth is controlled by BCP adsorption. These data suggest polymer:drug ratio is a better predictor of EE than solubility parameters and should serve as a first point of optimization.
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Albetawi S, Abdalhafez A, Abu-Zaid A, Matrouk A, Alhourani N. Recent solubility and dissolution enhancement techniques for repaglinide a BCS class II drug: a review. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e66586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Repaglinide is an oral blood-glucose-lowering drug used to manage type-2 diabetes mellitus by lowering post-prandial glucose by stimulating insulin secretion from pancreatic beta cells.
According to the biopharmaceutical classification system, repaglinide falls under the class II category. For such drugs, limited solubility and poor dissolution rate are the major hurdles to overcome by formulation scientists, as they hinder drug absorption and lead to inadequate therapeutic effects.
Therefore, this review aims to discuss in depth the various approaches investigated in the past five years to improve the solubility and dissolution of orally administered repaglinide: namely, solid dispersion, co-amorphous technology, cyclodextrin complexation, phospholipid complexes and polymeric micelles, nanocrystals, nanosuspensions and nanofibers.
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Ho Lee K, Ireland M, Miller BL, Wyslouzil BE, Winter JO. Synthesis of polymer nanoparticles via electrohydrodynamic emulsification-mediated self-assembly. J Colloid Interface Sci 2021; 586:445-456. [PMID: 33162039 DOI: 10.1016/j.jcis.2020.10.108] [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: 08/03/2020] [Revised: 10/05/2020] [Accepted: 10/25/2020] [Indexed: 11/24/2022]
Abstract
HYPOTHESIS Electrospray can rapidly produce fine, organic solvent-in-water emulsions in the absence of surfactant via electrohydrodynamic emulsification (EE), a reverse configuration of traditional electrospray. This paper investigates whether EE can produce high-quality nanocomposites comprised of block co-polymers and organic nanoparticles (NPs) via the interfacial instability (IS) self-assembly method. Surfactant-free approaches may increase encapsulation efficiency and product uniformity, process speed, and ease of downstream product purification. EXPERIMENTS All particles were produced using EE-mediated self-assembly (SA) (EE-SA). Particles were produced using poly(lactic-co-glycolic acid) (PLGA) polymers as proof of concept. Then, block copolymer (BCP) micelles were synthesized from polystyrene-block-poly(ethylene oxide) (PS-b-PEO) (PS 9.5 kDa:PEO 18.0 kDa) in the presence and absence of superparamagnetic iron oxide nanoparticles (SPIONs) or quantum dots (QDs). Encapsulant concentration was varied, and the effect of encapsulant NP ligands on final particle size was investigated. FINDINGS EE-SA generated both pure polymer NPs and nanocomposites containing SPIONs and QDs. PLGA particles spanned from sub- to super-micron sizes. PS-b-PEO NPs and nanocomposites were highly monodisperse, and more highly loaded than those made via a conventional, surfactant-rich IS process. Free ligands decreased the size of pure BCP particles. Increasing encapsulant levels led to a morphological transition from spherical to worm-like to densely loaded structures.
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Affiliation(s)
- Kil Ho Lee
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Megan Ireland
- Department of Biomedical Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Brandon L Miller
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Barbara E Wyslouzil
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA; Department of Chemistry and Biochemistry, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
| | - Jessica O Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA; Department of Biomedical Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
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Lu H, Tang SY, Yun G, Li H, Zhang Y, Qiao R, Li W. Modular and Integrated Systems for Nanoparticle and Microparticle Synthesis-A Review. BIOSENSORS 2020; 10:E165. [PMID: 33153122 PMCID: PMC7693962 DOI: 10.3390/bios10110165] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 01/22/2023]
Abstract
Nanoparticles (NPs) and microparticles (MPs) have been widely used in different areas of research such as materials science, energy, and biotechnology. On-demand synthesis of NPs and MPs with desired chemical and physical properties is essential for different applications. However, most of the conventional methods for producing NPs/MPs require bulky and expensive equipment, which occupies large space and generally need complex operation with dedicated expertise and labour. These limitations hinder inexperienced researchers to harness the advantages of NPs and MPs in their fields of research. When problems individual researchers accumulate, the overall interdisciplinary innovations for unleashing a wider range of directions are undermined. In recent years, modular and integrated systems are developed for resolving the ongoing dilemma. In this review, we focus on the development of modular and integrated systems that assist the production of NPs and MPs. We categorise these systems into two major groups: systems for the synthesis of (1) NPs and (2) MPs; systems for producing NPs are further divided into two sections based on top-down and bottom-up approaches. The mechanisms of each synthesis method are explained, and the properties of produced NPs/MPs are compared. Finally, we discuss existing challenges and outline the potentials for the development of modular and integrated systems.
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Affiliation(s)
- Hongda Lu
- School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia; (H.L.); (G.Y.)
| | - Shi-Yang Tang
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Guolin Yun
- School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia; (H.L.); (G.Y.)
| | - Haiyue Li
- Department of Chemistry and Biochemistry, University of California, San Diego, CA 92093, USA;
| | - Yuxin Zhang
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Ruirui Qiao
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Weihua Li
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
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Cosby LE, Lee KH, Knobloch TJ, Weghorst CM, Winter JO. Comparative Encapsulation Efficiency of Lutein in Micelles Synthesized via Batch and High Throughput Methods. Int J Nanomedicine 2020; 15:8217-8230. [PMID: 33122907 PMCID: PMC7591007 DOI: 10.2147/ijn.s259202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 09/24/2020] [Indexed: 12/04/2022] Open
Abstract
PURPOSE Black raspberries (BRBs) and their anthocyanin-rich hydrophilic fractions (BRB-H) have exhibited significant chemopreventative activity across aerodigestive cancers. Lutein, the primary component of the BRB lipophilic fraction (BRB-L), also demonstrates bioactivity potential, but is less well characterized, in part because of its poor, innate bioavailability. For these lipophilic compounds to be accurately evaluated for anticancer efficacy, it is necessary to increase their functional bioavailability using delivery vehicles. Lutein has been delivered in commercial settings in emulsion form. However, emulsions are unstable, particularly in the gastrointestinal tract, which limit their use as an oral nutraceutical. Here, we evaluated lutein encapsulation and cellular uptake for nanoparticle (NP) delivery vehicles composed of three different materials synthesized via two different approaches. METHODS Specifically, NPs were synthesized via smaller scale batch interfacial instability (II) sonication and semi-continuous high throughput electrohydrodynamic-mediated mixing nanoprecipitation (EM-NP) methods using polystyrene-polyethylene oxide (PSPEO) or polycaprolactone-polyethylene glycol (PCLPEG) block copolymers and PHOSPHOLIPON 90G® (P90G, Lipoid GmbH) lipids. Size distribution, lutein encapsulation efficiency (EE), and cellular uptake and delivery were evaluated for each NP formulation. RESULTS NPs produced via high throughput EM-NP had higher EEs than NPs produced via batch II sonication, and P90G had the greatest EE (55%) and elicited faster cellular uptake in premalignant oral epithelial cells (SCC83) compared to other delivery systems. CONCLUSION These qualities suggest P90G could be a beneficial candidate for future lutein in vitro delivery research and clinical translation for oral cancer prevention.
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Affiliation(s)
- Lauren E Cosby
- Biomedical Engineering, The Ohio State University, Columbus, OH43210, USA
| | - Kil Ho Lee
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH43210, USA
| | - Thomas J Knobloch
- College of Public Health, Division of Environmental Health Sciences, The Ohio State University, Columbus, OH43210, USA
| | - Christopher M Weghorst
- College of Public Health, Division of Environmental Health Sciences, The Ohio State University, Columbus, OH43210, USA
| | - Jessica O Winter
- Biomedical Engineering, The Ohio State University, Columbus, OH43210, USA
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH43210, USA
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Ma Z, Song W, He Y, Li H. Multilayer Injectable Hydrogel System Sequentially Delivers Bioactive Substances for Each Wound Healing Stage. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29787-29806. [PMID: 32515577 DOI: 10.1021/acsami.0c06360] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Wound healing is a dynamic and complex process that contains several sequential phases. However, most of the current drug delivery systems were designed to treat only one certain phase of wound repair, ignoring the fact that every stage plays critical roles in the wound healing process and those critical stages coordinately work to ensure optimal tissue regeneration. Therefore, a delivery system that can precisely meet the requirements of each wound healing stage is desired to enhance tissue regeneration. In this study, an injectable sodium alginate/bioglass (SA/BG) composite hydrogel was used to carry SA microparticles containing a conditioned medium (CM) of cells (SACM). Inside the SACM microparticles, poly(lactic-co-glycolic acid) (PLGA) microspheres containing pirfenidone (PFD) were encapsulated (PLGAPFD). This multilayer injectable hydrogel system (SA/BG-SACM-PLGAPFD) was designed to sequentially deliver bioactive molecules for meeting the bioactivity requirement and timeline of each wound healing stage. First, SA/BG hydrogels could rapidly release BG ionic products in the first 1-3 days to regulate the inflammatory response of the host and initiate the subsequent tissue regeneration. Then, SACM hydrogel microparticles could release CM of RAW 264.7 cells stimulated with BG ionic products in 2-7 days to facilitate the formation of the vascularized granulation tissue. Finally, PLGAPFD microspheres released PFD in 8-20 days to prevent the fibrosis and scar formation in the regenerated skin. Thus, this SA/BG-SACM-PLGAPFD delivery system could restrain host inflammation, accelerate wound healing, and inhibit the fibrosis formation in a diabetic mouse skin damage model, enhancing skin regeneration. As the bioactive components in each layer of the system can be adjusted according to the requirements of different tissue regeneration, this three-layered injectable biomaterial system has a wide application potential in the regenerative medicine field.
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Affiliation(s)
- Zhijie Ma
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
| | - Wei Song
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
- Department of Orthopedics, Shanghai Sixth People's Hospital, Jinshan Branch, 147 Jiankang Road, Shanghai 201599, China
| | - Yaohua He
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
- Department of Orthopedics, Shanghai Sixth People's Hospital, Jinshan Branch, 147 Jiankang Road, Shanghai 201599, China
| | - Haiyan Li
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
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Yan K, Kong H, Cui Z, Fu P, Liu M, Qiao X, Pang X. A Versatile Strategy for Unimolecular Micelle-Derived Hollow Polymer Nanoparticles as General Nanoreactors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6690-6697. [PMID: 32493013 DOI: 10.1021/acs.langmuir.0c00673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We reported the synthesis of a well-defined hollow polymer nanoparticle derived from star-shaped unimolecular micelles. β-Cyclodextrin was first applied as an efficient macroinitiator to prepare a star-shaped PCL via ring-opening polymerization (ROP). Then, the star-shaped PCL was modified to be a macro-RAFT agent for photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization of S-Cl monomers. The prepared unimolecular micelles can be photocross-linked under UV irradiation after a simple nucleophilic substitution reaction, which made -Cl groups to be -N3 groups. After the selective removal of the PCL core, hollow polymer nanoparticles were achieved and exhibited to be a general nanoreactor strategy for the fabrication of nanocrystals with well-controlled architectures. Compared with unimolecular micelle templates, the nanocrystals prepared by hollow templates are absolutely pure as no polymer chains are embedded in the inorganic nanocrystals. In addition, by changing the concentration of the precursor, the structure of the nanocrystal can be changed from a normal spherical structure to a hollow structure.
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Affiliation(s)
- Kailong Yan
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Huimin Kong
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zhe Cui
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Fu
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Minying Liu
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoguang Qiao
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xinchang Pang
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
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Levit SL, Yang H, Tang C. Rapid Self-Assembly of Polymer Nanoparticles for Synergistic Codelivery of Paclitaxel and Lapatinib via Flash NanoPrecipitation. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E561. [PMID: 32244904 PMCID: PMC7153395 DOI: 10.3390/nano10030561] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/11/2020] [Accepted: 03/18/2020] [Indexed: 12/12/2022]
Abstract
Taxol, a formulation of paclitaxel (PTX), is one of the most widely used anticancer drugs, particularly for treating recurring ovarian carcinomas following surgery. Clinically, PTX is used in combination with other drugs such as lapatinib (LAP) to increase treatment efficacy. Delivering drug combinations with nanoparticles has the potential to improve chemotherapy outcomes. In this study, we use Flash NanoPrecipitation, a rapid, scalable process to encapsulate weakly hydrophobic drugs (logP < 6) PTX and LAP into polymer nanoparticles with a coordination complex of tannic acid and iron formed during the mixing process. We determine the formulation parameters required to achieve uniform nanoparticles and evaluate the drug release in vitro. The size of the resulting nanoparticles was stable at pH 7.4, facilitating sustained drug release via first-order Fickian diffusion. Encapsulating either PTX or LAP into nanoparticles increases drug potency (as indicated by the decrease in IC-50 concentration); we observe a 1500-fold increase in PTX potency and a six-fold increase in LAP potency. When PTX and LAP are co-loaded in the same nanoparticle, they have a synergistic effect that is greater than treating with two single-drug-loaded nanoparticles as the combination index is 0.23 compared to 0.40, respectively.
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Affiliation(s)
- Shani L. Levit
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284, USA; (S.L.L.); (H.Y.)
| | - Hu Yang
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284, USA; (S.L.L.); (H.Y.)
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Christina Tang
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284, USA; (S.L.L.); (H.Y.)
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Morais AÍS, Vieira EG, Afewerki S, Sousa RB, Honorio LMC, Cambrussi ANCO, Santos JA, Bezerra RDS, Furtini JAO, Silva-Filho EC, Webster TJ, Lobo AO. Fabrication of Polymeric Microparticles by Electrospray: The Impact of Experimental Parameters. J Funct Biomater 2020; 11:jfb11010004. [PMID: 31952157 PMCID: PMC7151563 DOI: 10.3390/jfb11010004] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/10/2020] [Accepted: 01/10/2020] [Indexed: 02/06/2023] Open
Abstract
Microparticles (MPs) with controlled morphologies and sizes have been investigated by several researchers due to their importance in pharmaceutical, ceramic, cosmetic, and food industries to just name a few. In particular, the electrospray (ES) technique has been shown to be a viable alternative for the development of single particles with different dimensions, multiple layers, and varied morphologies. In order to adjust these properties, it is necessary to optimize different experimental parameters, such as polymer solvent, voltage, flow rate (FR), type of collectors, and distance between the collector and needle tip, which will all be highlighted in this review. Moreover, the influence and contributions of each of these parameters on the design and fabrication of polymeric MPs are described. In addition, the most common configurations of ES systems for this purpose are discussed, for instance, the main configuration of an ES system with monoaxial, coaxial, triaxial, and multi-capillary delivery. Finally, the main types of collectors employed, types of synthesized MPs and their applications specifically in the pharmaceutical and biomedical fields will be emphasized. To date, ES is a promising and versatile technology with numerous excellent applications in the pharmaceutical and biomaterials field and such MPs generated should be employed for the improved treatment of cancer, healing of bone, and other persistent medical problems.
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Affiliation(s)
- Alan Í. S. Morais
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
| | - Ewerton G. Vieira
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
| | - Samson Afewerki
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham & Women’s Hospital, Cambridge, MA 02139, USA;
- Harvard-MIT Division of Health Science and Technology, Massachusetts Institute of Technology, MIT, Cambridge, MA 02139, USA
| | - Ricardo B. Sousa
- Federal Institute of Education, Science and Technology of Tocantins, Dianápolis Campus, IFTO, Dianápolis 77300-000, Tocantins, Brazil;
| | - Luzia M. C. Honorio
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
| | - Anallyne N. C. O. Cambrussi
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
| | - Jailson A. Santos
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
| | - Roosevelt D. S. Bezerra
- Federal Institute of Education, Science and Technology of Piauí, Teresina-Central Campus, IFPI, Teresina 64000-040, Brazil;
| | - Josy A. O. Furtini
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
| | - Edson C. Silva-Filho
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
| | - Thomas J. Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA;
| | - Anderson O. Lobo
- LIMAV—Interdisciplinary Advanced Materials Laboratory, PPGCM—Materials Science and Engineering Graduate Program, UFPI—Federal University of Piaui, Teresina 64049-550, Brazil; (A.Í.S.M.); (E.G.V.); (L.M.C.H.); (A.N.C.O.C.); (J.A.S.); (J.A.O.F.); (E.C.S.-F.)
- Correspondence: ; Tel.: +55-86-3237-1057
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13
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Mahajan KD, Ruan G, Vieira G, Porter T, Chalmers JJ, Sooryakumar R, Winter JO. Biomolecular detection, tracking, and manipulation using a magnetic nanoparticle-quantum dot platform. J Mater Chem B 2020; 8:3534-3541. [DOI: 10.1039/c9tb02481f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Fluorescent and magnetic materials play a significant role in biosensor technology, enabling sensitive quantification and separations with applications in diagnostics, purification, quality control, and therapeutics.
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Affiliation(s)
- Kalpesh D. Mahajan
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Gang Ruan
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
- Department of Biomedical Engineering
| | - Greg Vieira
- Department of Physics
- The Ohio State University
- Columbus
- USA
- Department of Physics
| | - Thomas Porter
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Jeffrey J. Chalmers
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - R. Sooryakumar
- Department of Physics
- The Ohio State University
- Columbus
- USA
| | - Jessica O. Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
- Department of Biomedical Engineering
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14
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Yong X, Chen Y, Yu X, Ruan G. Producing protein-nanoparticle co-assembly supraparticles by the interfacial instability process. SOFT MATTER 2019; 15:7420-7428. [PMID: 31468036 DOI: 10.1039/c9sm01277j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Originally discovered in fundamental research of nanomaterial-biomolecule interactions, protein-nanoparticle co-assembly supraparticles (PNCAS) have become an emerging class of nanomaterials with various biological applications. We apply the interfacial instability process, which was originally reported for forming nanoparticles-encapsulated polymeric micelles, to produce PNCAS. By doing so hydrophobic nanoparticles, which are often the product formed from the upstream nanoparticle synthesis step, can be directly used as the raw materials of the production process of PNCAS. On the other hand, we take advantage of the structural features of protein molecules, in comparison with amphiphilic block copolymers, to mitigate two common problems encountered in the original interfacial instability-mediated nanoparticle encapsulation process, namely (1) poor encapsulation number control and (2) inconvenience and high cost to vary the assembly size. Additionally, we achieve semi-continuous and scalable production of PNCAS by combining the electrospray process and the interfacial instability process. We also conduct proof-of-concept studies of biological applications of the PNCAS products.
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Affiliation(s)
- Xueqing Yong
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, China.
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15
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Electrospray for generation of drug delivery and vaccine particles applied in vitro and in vivo. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110070. [PMID: 31546372 PMCID: PMC10366704 DOI: 10.1016/j.msec.2019.110070] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/17/2019] [Accepted: 08/09/2019] [Indexed: 12/16/2022]
Abstract
Also known as electrospray, electrohydrodynamic atomization has been used extensively in the last 15 years to develop polymer-based particles for drug delivery in cell and animal models. More recently, novel core-shell, multi-axial, and other electrospray particles have been developed from an array of polymers for a variety of biomedical applications. This review focuses on electrospray as a novel method of particle fabrication for drug delivery, specifically highlighting the applications of these particle systems in cell culture and animal models while also discussing polymers used for particle fabrication. Applications of electrospray particles to treat glioma, ovarian cancer, and breast cancer are reviewed. Additionally, delivery of antibiotics, gene therapy, and bacterial cells formulated in electrospray particles is discussed. Finally, vaccines as well as drug eluting particles for differentiation of stem cells and tissue engineering are highlighted. The article concludes with a discussion of where the future of electrospray technology can go to strengthen its foothold in the biomedical field.
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16
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Zhang R, Zhang N, Mohri M, Wu L, Eckert T, Krylov VB, Antosova A, Ponikova S, Bednarikova Z, Markart P, Günther A, Norden B, Billeter M, Schauer R, Scheidig AJ, Ratha BN, Bhunia A, Hesse K, Enani MA, Steinmeyer J, Petridis AK, Kozar T, Gazova Z, Nifantiev NE, Siebert HC. Nanomedical Relevance of the Intermolecular Interaction Dynamics-Examples from Lysozymes and Insulins. ACS OMEGA 2019; 4:4206-4220. [PMID: 30847433 PMCID: PMC6398350 DOI: 10.1021/acsomega.8b02471] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 11/28/2018] [Indexed: 06/01/2023]
Abstract
Insulin and lysozyme share the common features of being prone to aggregate and having biomedical importance. Encapsulating lysozyme and insulin in micellar nanoparticles probably would prevent aggregation and facilitate oral drug delivery. Despite the vivid structural knowledge of lysozyme and insulin, the environment-dependent oligomerization (dimer, trimer, and multimer) and associated structural dynamics remain elusive. The knowledge of the intra- and intermolecular interaction profiles has cardinal importance for the design of encapsulation protocols. We have employed various biophysical methods such as NMR spectroscopy, X-ray crystallography, Thioflavin T fluorescence, and atomic force microscopy in conjugation with molecular modeling to improve the understanding of interaction dynamics during homo-oligomerization of lysozyme (human and hen egg) and insulin (porcine, human, and glargine). The results obtained depict the atomistic intra- and intermolecular interaction details of the homo-oligomerization and confirm the propensity to form fibrils. Taken together, the data accumulated and knowledge gained will further facilitate nanoparticle design and production with insulin or lysozyme-related protein encapsulation.
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Affiliation(s)
- Ruiyan Zhang
- Institute
of Biopharmaceutical Research, Liaocheng
University, Liaocheng 252059, P. R. China
- RI-B-NT
Research Institute of Bioinformatics and Nanotechnology, Franziusallee 177, 24148 Kiel, Germany
- Institute
of Zoology, Department of Structural Biology, Christian-Albrechts-University, Am Botanischen Garten 1-9, 24118 Kiel, Germany
| | - Ning Zhang
- Institute
of Biopharmaceutical Research, Liaocheng
University, Liaocheng 252059, P. R. China
| | - Marzieh Mohri
- RI-B-NT
Research Institute of Bioinformatics and Nanotechnology, Franziusallee 177, 24148 Kiel, Germany
| | - Lisha Wu
- Department
of Chemical and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Thomas Eckert
- Department
of Chemistry and Biology, University of
Applied Sciences Fresenius, Limburger Str. 2, 65510 Idstein, Germany
- Institut
für Veterinärphysiolgie und Biochemie, Fachbereich Veterinärmedizin, Justus-Liebig-Universität Gießen, Frankfurter Str. 100, 35392 Gießen, Germany
| | - Vadim B. Krylov
- Laboratory
of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991 Moscow, Russian Federation
| | - Andrea Antosova
- Department
of Biophysics Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04001 Kosice, Slovakia
| | - Slavomira Ponikova
- Department
of Biophysics Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04001 Kosice, Slovakia
| | - Zuzana Bednarikova
- Department
of Biophysics Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04001 Kosice, Slovakia
| | - Philipp Markart
- Medical
Clinic II, Justus-Liebig-University, Klinikstraße 33, 35392 Giessen, Germany
- Pneumology,
Heart-Thorax-Center Fulda, Pacelliallee 4, 36043 Fulda, Germany
| | - Andreas Günther
- Medical
Clinic II, Justus-Liebig-University, Klinikstraße 33, 35392 Giessen, Germany
| | - Bengt Norden
- Department
of Chemical and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Martin Billeter
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, 40530 Gothenburg, Sweden
| | - Roland Schauer
- Institute
of Biochemistry, Christian-Albrechts-University, Olshausenstrasse 40, 24098 Kiel, Germany
| | - Axel J. Scheidig
- Institute
of Zoology, Department of Structural Biology, Christian-Albrechts-University, Am Botanischen Garten 1-9, 24118 Kiel, Germany
| | - Bhisma N. Ratha
- Biomolecular
NMR and Drug Design Laboratory, Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), 700054 Kolkata, India
| | - Anirban Bhunia
- Biomolecular
NMR and Drug Design Laboratory, Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), 700054 Kolkata, India
| | - Karsten Hesse
- Tierarztpraxis
Dr. Karsten Hesse, Rathausstraße
16, 35460 Stauffenberg, Germany
| | - Mushira Abdelaziz Enani
- Infectious
Diseases Division, Department of Medicine, King Fahad Medical City, P.O. Box 59046, 11525 Riyadh, Kingdom of Saudi
Arabia
| | - Jürgen Steinmeyer
- Laboratory
for Experimental Orthopaedics, Department of Orthopaedics, Justus-Liebig-University, Paul-Meimberg-Str. 3, D-35392 Giessen, Germany
| | - Athanasios K. Petridis
- Neurochirurgische
Klinik, Universität Düsseldorf, Geb. 11.54, Moorenstraße 5, 40255 Düsseldorf, Germany
| | - Tibor Kozar
- Center
for Interdisciplinary Biosciences, TIP-UPJS, Jesenna 5, 04001 Kosice, Slovakia
| | - Zuzana Gazova
- Department
of Biophysics Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04001 Kosice, Slovakia
| | - Nikolay E. Nifantiev
- Laboratory
of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991 Moscow, Russian Federation
| | - Hans-Christian Siebert
- RI-B-NT
Research Institute of Bioinformatics and Nanotechnology, Franziusallee 177, 24148 Kiel, Germany
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17
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Translational Nanodiagnostics for In Vivo Cancer Detection. Bioanalysis 2019. [DOI: 10.1007/978-3-030-01775-0_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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18
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Lee H, An S, Kim S, Jeon B, Kim M, Kim IS. Readily Functionalizable and Stabilizable Polymeric Particles with Controlled Size and Morphology by Electrospray. Sci Rep 2018; 8:15725. [PMID: 30356115 PMCID: PMC6200772 DOI: 10.1038/s41598-018-34124-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 10/10/2018] [Indexed: 11/09/2022] Open
Abstract
Electrospraying is an effective and facile technique for the production of micro- or nanoparticles with tailored sizes, shapes, morphologies, and microstructures. We synthesized functionalizable poly(styrene-random-glycidyl methacrylate) copolymers and used them to fabricate microparticles via the electrospray technique. The sizes and morphologies of the electrosprayed particles are controlled by altering the process parameters (feed rate and applied voltage), and the composition and thermodynamic properties of the polymer (i.e., compatibility of the polymer with the solvent). We further investigated modifying the surfaces of the electrosprayed particles with 3-mercaptopropionic acid by a simple and efficient thiol-epoxy "click" reaction as a proof-of-concept demonstration that desired functionality can be introduced onto the surfaces of these particles; the outcome was confirmed by various spectroscopic techniques. In addition, the epoxides within the particles easily undergo crosslinking reactions, enabling further effective particle stabilization. The results reveal that the structure and properties of the polymer can be used to fine-tune the structural parameters of the electrosprayed particles, such as their sizes and morphologies, which opens up the possibility of imparting a variety of desired chemical functionalities into the structures of stable organic materials via post-electrospray modification processes.
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Affiliation(s)
- Hoik Lee
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano, 386-8567, Japan
| | - Sol An
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Korea
| | - Sukjoo Kim
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano, 386-8567, Japan
| | - Bokyoung Jeon
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Korea
| | - Myungwoong Kim
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Korea.
| | - Ick Soo Kim
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano, 386-8567, Japan.
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19
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Nabar GM, Winter JO, Wyslouzil BE. Nanoparticle packing within block copolymer micelles prepared by the interfacial instability method. SOFT MATTER 2018; 14:3324-3335. [PMID: 29652417 DOI: 10.1039/c8sm00425k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The interfacial instability method has emerged as a viable approach for encapsulating high concentrations of nanoparticles (NPs) within morphologically diverse micelles. In this method, transient interfacial instabilities at the surface of an emulsion droplet guide self-assembly of block co-polymers and NP encapsulants. Although used by many groups, there are no systematic investigations exploring the relationship between NP properties and micelle morphology. Here, the effect of quantum dot (QD) and superparamagnetic iron oxide NP (SPION) concentration on the shape, size, and surface deformation of initially spherical poly(styrene-b-ethylene oxide) (PS-b-PEO) micelles was examined. Multi-NP encapsulation and uniform dispersion within micelles was obtained even at low NP concentrations. Increasing NP concentration initially resulted in larger numbers of elongated micelles and cylinders with tightly-controlled diameters smaller than those of spherical micelles. Beyond a critical NP concentration, micelle formation was suppressed; the dominant morphology became densely-loaded NP structures that were coated with polymer and exhibited increased polydispersity. Transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS) revealed that NPs in densely-loaded structures can be well-ordered, with packing volume fractions of up to 24%. These effects were enhanced in magnetic composites, possibly by dipole interactions. Mechanisms governing phase transitions triggered by NP loading in the interfacial instability process were proposed. The current study helps establish and elucidate the active role played by NPs in directing block copolymer assembly in the interfacial instability process, and provides important guiding principles for the use of this approach in generating NP-loaded block copolymer composites.
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Affiliation(s)
- Gauri M Nabar
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
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20
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Ehlerding EB, Grodzinski P, Cai W, Liu CH. Big Potential from Small Agents: Nanoparticles for Imaging-Based Companion Diagnostics. ACS NANO 2018; 12:2106-2121. [PMID: 29462554 PMCID: PMC5878691 DOI: 10.1021/acsnano.7b07252] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The importance of medical imaging in the diagnosis and monitoring of cancer cannot be overstated. As personalized cancer treatments are gaining popularity, a need for more advanced imaging techniques has grown significantly. Nanoparticles are uniquely suited to fill this void, not only as imaging contrast agents but also as companion diagnostics. This review provides an overview of many ways nanoparticle imaging agents have contributed to cancer imaging, both preclinically and in the clinic, as well as charting future directions in companion diagnostics. We conclude that, while nanoparticle-based imaging agents are not without considerable scientific and developmental challenges, they enable enhanced imaging in nearly every modality, hold potential as in vivo companion diagnostics, and offer precise cancer treatment and maximize intervention efficacy.
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Affiliation(s)
- Emily B. Ehlerding
- Office of Cancer Nanotechnology Research, National Cancer Institute, National Institutes of Health, Rockville, Maryland 20850, United States
- Department of Medical Physics, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Piotr Grodzinski
- Office of Cancer Nanotechnology Research, National Cancer Institute, National Institutes of Health, Rockville, Maryland 20850, United States
| | - Weibo Cai
- Department of Medical Physics, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
- Department of Radiology, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
- Carbone Cancer Center, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Christina H. Liu
- Office of Cancer Nanotechnology Research, National Cancer Institute, National Institutes of Health, Rockville, Maryland 20850, United States
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21
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Pugliese E, Coentro JQ, Zeugolis DI. Advancements and Challenges in Multidomain Multicargo Delivery Vehicles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704324. [PMID: 29446161 DOI: 10.1002/adma.201704324] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 11/05/2017] [Indexed: 06/08/2023]
Abstract
Reparative and regenerative processes are well-orchestrated temporal and spatial events that are governed by multiple cells, molecules, signaling pathways, and interactions thereof. Yet again, currently available implantable devices fail largely to recapitulate nature's complexity and sophistication in this regard. Herein, success stories and challenges in the field of layer-by-layer, composite, self-assembly, and core-shell technologies are discussed for the development of multidomain/multicargo delivery vehicles.
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Affiliation(s)
- Eugenia Pugliese
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Ireland
- Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Ireland
| | - João Q Coentro
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Ireland
- Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Ireland
| | - Dimitrios I Zeugolis
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Ireland
- Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Ireland
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22
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Ding S, Attia MF, Wallyn J, Taddei C, Serra CA, Anton N, Kassem M, Schmutz M, Er-Rafik M, Messaddeq N, Collard A, Yu W, Giordano M, Vandamme TF. Microfluidic-Assisted Production of Size-Controlled Superparamagnetic Iron Oxide Nanoparticles-Loaded Poly(methyl methacrylate) Nanohybrids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1981-1991. [PMID: 29334739 DOI: 10.1021/acs.langmuir.7b01928] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this paper, superparamagnetic iron oxide nanoparticles (SPIONs, around 6 nm) encapsulated in poly(methyl methacrylate) nanoparticles (PMMA NPs) with controlled sizes ranging from 100 to 200 nm have been successfully produced. The hybrid polymeric NPs were prepared following two different methods: (1) nanoprecipitation and (2) nanoemulsification-evaporation. These two methods were implemented in two different microprocesses based on the use of an impact jet micromixer and an elongational-flow microemulsifier. SPIONs-loaded PMMA NPs synthesized by the two methods presented completely different physicochemical properties. The polymeric NPs prepared with the micromixer-assisted nanoprecipitation method showed a heterogeneous dispersion of SPIONs inside the polymer matrix, an encapsulation efficiency close to 100 wt %, and an irregular shape. In contrast, the polymeric NPs prepared with the microfluidic-assisted nanoemulsification-evaporation method showed a homogeneous dispersion, an almost complete encapsulation, and a spherical shape. The properties of the polymeric NPs have been characterized by dynamic light scattering, thermogravimetric analysis, and transmission electron microscope. In vitro cytotoxicity assays were also performed on the nanohybrids and pure PMMA NPs.
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Affiliation(s)
- Shukai Ding
- Université de Strasbourg, CNRS, ICS UPR 22 , F-67000 Strasbourg, France
- Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology , CN-710021 Xi'an, Shaanxi, China
| | - Mohamed F Attia
- Université de Strasbourg, CNRS, CAMB UMR 7199 , F-67000 Strasbourg, France
- National Research Centre , 12622 Cairo, Egypt
- Department of Bioengineering, Clemson University , Clemson, South Carolina 29634, United States
| | - Justine Wallyn
- Université de Strasbourg, CNRS, CAMB UMR 7199 , F-67000 Strasbourg, France
| | - Chiara Taddei
- Université de Strasbourg, CNRS, ICS UPR 22 , F-67000 Strasbourg, France
- Institute for Polymers, Composites and Biomaterials (IPCB), CNR , Portici 80055, Italy
| | | | - Nicolas Anton
- Université de Strasbourg, CNRS, CAMB UMR 7199 , F-67000 Strasbourg, France
| | - Mohamad Kassem
- Vascular and Tissue Stress in Transplantation: Microparticles and Environment EA7293, Université de Strasbourg , F-67000 Strasbourg, France
| | - Marc Schmutz
- Université de Strasbourg, CNRS, ICS UPR 22 , F-67000 Strasbourg, France
| | - Meriem Er-Rafik
- Université de Strasbourg, CNRS, ICS UPR 22 , F-67000 Strasbourg, France
| | - Nadia Messaddeq
- Université de Strasbourg CNRS, INSERM, Collège de France, IGBMC UMR 7104/UMR_S 964 , F-67000 Strasbourg, France
| | - Alexandre Collard
- Université de Strasbourg, CNRS, ICS UPR 22 , F-67000 Strasbourg, France
| | - Wei Yu
- Université de Strasbourg, CNRS, ICS UPR 22 , F-67000 Strasbourg, France
| | - Michele Giordano
- Institute for Polymers, Composites and Biomaterials (IPCB), CNR , Portici 80055, Italy
| | - Thierry F Vandamme
- Université de Strasbourg, CNRS, CAMB UMR 7199 , F-67000 Strasbourg, France
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Morphology of block copolymer micelles formed via electrospray enabled interfacial instability. J Colloid Interface Sci 2018; 512:411-418. [DOI: 10.1016/j.jcis.2017.10.087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/21/2017] [Accepted: 10/23/2017] [Indexed: 11/23/2022]
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Nabar GM, Mahajan KD, Calhoun MA, Duong AD, Souva MS, Xu J, Czeisler C, Puduvalli VK, Otero JJ, Wyslouzil BE, Winter JO. Micelle-templated, poly(lactic- co-glycolic acid) nanoparticles for hydrophobic drug delivery. Int J Nanomedicine 2018; 13:351-366. [PMID: 29391794 PMCID: PMC5768187 DOI: 10.2147/ijn.s142079] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
PURPOSE Poly(lactic-co-glycolic acid) (PLGA) is widely used for drug delivery because of its biocompatibility, ability to solubilize a wide variety of drugs, and tunable degradation. However, achieving sub-100 nm nanoparticles (NPs), as might be desired for delivery via the enhanced permeability and retention effect, is extremely difficult via typical top-down emulsion approaches. METHODS Here, we present a bottom-up synthesis method yielding PLGA/block copolymer hybrids (ie, "PolyDots"), consisting of hydrophobic PLGA chains entrapped within self-assembling poly(styrene-b-ethylene oxide) (PS-b-PEO) micelles. RESULTS PolyDots exhibit average diameters <50 nm and lower polydispersity than conventional PLGA NPs. Drug encapsulation efficiencies of PolyDots match conventional PLGA NPs (ie, ~30%) and are greater than those obtained from PS-b-PEO micelles (ie, ~7%). Increasing the PLGA:PS-b-PEO weight ratio alters the drug release mechanism from chain relaxation to erosion controlled. PolyDots are taken up by model glioma cells via endocytotic mechanisms within 24 hours, providing a potential means for delivery to cytoplasm. PolyDots can be lyophilized with minimal change in morphology and encapsulant functionality, and can be produced at scale using electrospray. CONCLUSION Encapsulation of PLGA within micelles provides a bottom-up route for the synthesis of sub-100 nm PLGA-based nanocarriers with enhanced stability and drug-loading capacity, and tunable drug release, suitable for potential clinical applications.
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Affiliation(s)
- Gauri M Nabar
- William G Lowrie Department of Chemical and Biomolecular Engineering
| | - Kalpesh D Mahajan
- William G Lowrie Department of Chemical and Biomolecular Engineering
| | | | - Anthony D Duong
- William G Lowrie Department of Chemical and Biomolecular Engineering
| | - Matthew S Souva
- William G Lowrie Department of Chemical and Biomolecular Engineering
| | - Jihong Xu
- Division of Neuro-oncology, College of Medicine, The Ohio State University Comprehensive Cancer Center
- Dardinger Laboratory for Neuro-oncology and Neurosciences, Department of Neurosurgery, College of Medicine, The Ohio State University Comprehensive Cancer Center
| | - Catherine Czeisler
- Department of Pathology and the Neurological Research Institute, College of Medicine
| | - Vinay K Puduvalli
- Division of Neuro-oncology, College of Medicine, The Ohio State University Comprehensive Cancer Center
- Dardinger Laboratory for Neuro-oncology and Neurosciences, Department of Neurosurgery, College of Medicine, The Ohio State University Comprehensive Cancer Center
| | - José Javier Otero
- Department of Pathology and the Neurological Research Institute, College of Medicine
| | - Barbara E Wyslouzil
- William G Lowrie Department of Chemical and Biomolecular Engineering
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Jessica O Winter
- William G Lowrie Department of Chemical and Biomolecular Engineering
- Department of Biomedical Engineering
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Sun Y, Mei L, Han N, Ding X, Yu C, Yang W, Ruan G. Examining the Roles of Emulsion Droplet Size and Surfactant in the Interfacial Instability-Based Fabrication Process of Micellar Nanocrystals. NANOSCALE RESEARCH LETTERS 2017; 12:434. [PMID: 28709375 PMCID: PMC5509569 DOI: 10.1186/s11671-017-2202-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/16/2017] [Indexed: 06/07/2023]
Abstract
The interfacial instability process is an emerging general method to fabricate nanocrystal-encapsulated micelles (also called micellar nanocrystals) for biological detection, imaging, and therapy. The present work utilized fluorescent semiconductor nanocrystals (quantum dots or QDs) as the model nanocrystals to investigate the interfacial instability-based fabrication process of nanocrystal-encapsulated micelles. Our experimental results suggest intricate and intertwined roles of the emulsion droplet size and the surfactant poly (vinyl alcohol) (PVA) used in the fabrication process of QD-encapsulated poly (styrene-b-ethylene glycol) (PS-PEG) micelles. When no PVA is used, no emulsion droplet and thus no micelle is successfully formed; Emulsion droplets with large sizes (~25 μm) result in two types of QD-encapsulated micelles, one of which is colloidally stable QD-encapsulated PS-PEG micelles while the other of which is colloidally unstable QD-encapsulated PVA micelles; In contrast, emulsion droplets with small sizes (~3 μm or smaller) result in only colloidally stable QD-encapsulated PS-PEG micelles. The results obtained in this work not only help to optimize the quality of nanocrystal-encapsulated micelles prepared by the interfacial instability method for biological applications but also offer helpful new knowledge on the interfacial instability process in particular and self-assembly in general.
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Affiliation(s)
- Yuxiang Sun
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
- Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, China
| | - Ling Mei
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
- Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, China
| | - Ning Han
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
- Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, China
| | - Xinyi Ding
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
- Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, China
| | - Caihao Yu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
- Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, China
| | - Wenjuan Yang
- Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, China
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
| | - Gang Ruan
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China.
- Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, China.
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Mahajan KD, Cui Y, Dorcéna CJ, Bouxsien NF, Bachand GD, Chalmers JJ, Winter JO. Magnetic Quantum Dots Steer and Detach Microtubules From Kinesin-Coated Surfaces. Biotechnol J 2017; 13. [PMID: 28941258 DOI: 10.1002/biot.201700402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 09/03/2017] [Indexed: 11/07/2022]
Abstract
The microtubule (MT)-kinesin system has been extensively studied because of its role in cellular processes, as well as its potential use for controllably transporting objects at the nanoscale. Thus, there is substantial interest in methods to evaluate MT properties, including bending radius and the binding energy of kinesin motor proteins to MT tracks. Current methods to identify these properties include optical tweezers, microfluidic devices, and magnetic fields. Here, the use of magnetic quantum dots (i.e., MagDots) is evaluated as a method to study MT-kinesin interactions via applied magnetic forces. Magnetic fields are generated using a magnetic needle whose field gradient is quantified by finite element modeling (FEM). Magnetic force is applied to MagDot-labeled MTs and demonstrated sufficient to steer and detach MTs from kinesin-coated surfaces. Taking advantage of the dual-functionality of MagDots, the magnetic force experienced by a single MagDot and the number of MagDots on MTs are determined. The total force exerted on MTs by MagDots is estimated to be ≈0.94-2.47 pN. This approach could potentially be used to interrogate MT properties and MT-kinesin interactions, enhancing our biological understanding of this system and enabling further development of MT shuttles for nanotransport.
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Affiliation(s)
- Kalpesh D Mahajan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Yixiao Cui
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | - C Jenny Dorcéna
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Nathan F Bouxsien
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM, USA
| | - George D Bachand
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM, USA
| | - Jeffrey J Chalmers
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Jessica O Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA.,Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
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27
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Ding X, Han N, Wang J, Sun Y, Ruan G. Effects of organic solvents on the structures of micellar nanocrystals. RSC Adv 2017. [DOI: 10.1039/c6ra28741g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Solvent is used to control the structure of micellar nanocrystals prepared by combining electrospray and self-assembly.
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Affiliation(s)
- Xinyi Ding
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing University
- China
- Collaborative Innovation Center of Chemistry for Life Sciences
| | - Ning Han
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing University
- China
- Collaborative Innovation Center of Chemistry for Life Sciences
| | - Jun Wang
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing University
- China
- Collaborative Innovation Center of Chemistry for Life Sciences
| | - Yuxiang Sun
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing University
- China
- Collaborative Innovation Center of Chemistry for Life Sciences
| | - Gang Ruan
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing University
- China
- Collaborative Innovation Center of Chemistry for Life Sciences
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28
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Altobelli R, Guarino V, Ambrosio L. Micro- and nanocarriers by electrofludodynamic technologies for cell and molecular therapies. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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29
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Gallovic MD, Schully KL, Bell MG, Elberson MA, Palmer JR, Darko CA, Bachelder EM, Wyslouzil BE, Keane-Myers AM, Ainslie KM. Acetalated Dextran Microparticulate Vaccine Formulated via Coaxial Electrospray Preserves Toxin Neutralization and Enhances Murine Survival Following Inhalational Bacillus Anthracis Exposure. Adv Healthc Mater 2016; 5:2617-2627. [PMID: 27594343 DOI: 10.1002/adhm.201600642] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/20/2016] [Indexed: 12/30/2022]
Abstract
Subunit formulations are regarded as the safest type of vaccine, but they often contain a protein-based antigen that can result in significant challenges, such as preserving antigenicity during formulation and administration. Many studies have demonstrated that encapsulation of protein antigens in polymeric microparticles (MPs) via emulsion techniques results in total IgG antibody titers comparable to alum formulations, however, the antibodies themselves are non-neutralizing. To address this issue, a coaxial electrohydrodynamic spraying (electrospray) technique is used to formulate a microparticulate-based subunit anthrax vaccine under conditions that minimize recombinant protective antigen (rPA) exposure to harsh solvents and high shear stress. rPA and the adjuvant resiquimod are encapsulated either in separate or the same acetalated dextran MPs. Using a murine model, the electrospray formulations lead to higher IgG2a subtype titers as well as comparable total IgG antibody titers and toxin neutralization relative to the FDA-approved vaccine (BioThrax). BioThrax provides no protection against a lethal inhalational challenge of the highly virulent Ames Bacillus anthracis anthrax strain, whereas 50% of the mice vaccinated with separately encapsulated electrospray MPs survive. Overall, this study demonstrates the potential use of electrospray for encapsulating protein antigens in polymeric MPs.
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Affiliation(s)
- Matthew D. Gallovic
- Department of Chemical and Biomolecular Engineering; College of Engineering; The Ohio State University; Columbus OH 43210 USA
- Division of Molecular Pharmaceutics; Eshelman School of Pharmacy; University of North Carolina; Chapel Hill NC 27599 USA
| | - Kevin L. Schully
- Vaccine and Medical Countermeasures Department; Biological Defense Research Directorate; Naval Medical Research Center; Fort Detrick MD 20910 USA
| | - Matthew G. Bell
- Vaccine and Medical Countermeasures Department; Biological Defense Research Directorate; Naval Medical Research Center; Fort Detrick MD 20910 USA
| | - Margaret A. Elberson
- Vaccine and Medical Countermeasures Department; Biological Defense Research Directorate; Naval Medical Research Center; Fort Detrick MD 20910 USA
| | - John R. Palmer
- Vaccine and Medical Countermeasures Department; Biological Defense Research Directorate; Naval Medical Research Center; Fort Detrick MD 20910 USA
| | - Christian A. Darko
- Vaccine and Medical Countermeasures Department; Biological Defense Research Directorate; Naval Medical Research Center; Fort Detrick MD 20910 USA
| | - Eric M. Bachelder
- Division of Molecular Pharmaceutics; Eshelman School of Pharmacy; University of North Carolina; Chapel Hill NC 27599 USA
| | - Barbara E. Wyslouzil
- Department of Chemical and Biomolecular Engineering; College of Engineering; The Ohio State University; Columbus OH 43210 USA
- Department of Chemistry and Biochemistry; College of Arts and Sciences; The Ohio State University; Columbus OH 43210 USA
| | - Andrea M. Keane-Myers
- Vaccine and Medical Countermeasures Department; Biological Defense Research Directorate; Naval Medical Research Center; Fort Detrick MD 20910 USA
| | - Kristy M. Ainslie
- Division of Molecular Pharmaceutics; Eshelman School of Pharmacy; University of North Carolina; Chapel Hill NC 27599 USA
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30
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Mahajan KD, Ruan G, Dorcéna CJ, Vieira G, Nabar G, Bouxsein NF, Chalmers JJ, Bachand GD, Sooryakumar R, Winter JO. Steering microtubule shuttle transport with dynamically controlled magnetic fields. NANOSCALE 2016; 8:8641-8649. [PMID: 27049749 DOI: 10.1039/c5nr08529b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nanoscale control of matter is critical to the design of integrated nanosystems. Here, we describe a method to dynamically control directionality of microtubule (MT) motion using programmable magnetic fields. MTs are combined with magnetic quantum dots (i.e., MagDots) that are manipulated by external magnetic fields provided by magnetic nanowires. MT shuttles thus undergo both ATP-driven and externally-directed motion with a fluorescence component that permits simultaneous visualization of shuttle motion. This technology is used to alter the trajectory of MTs in motion and to pin MT motion. Such an approach could be used to evaluate the MT-kinesin transport system and could serve as the basis for improved lab-on-a-chip technologies based on MT transport.
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Affiliation(s)
- K D Mahajan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, 151 West Woodruff Avenue and The Ohio State University, Columbus, OH 43210, USA
| | - G Ruan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, 151 West Woodruff Avenue and The Ohio State University, Columbus, OH 43210, USA and Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 200697, China
| | - C J Dorcéna
- William G. Lowrie Department of Chemical and Biomolecular Engineering, 151 West Woodruff Avenue and The Ohio State University, Columbus, OH 43210, USA
| | - G Vieira
- Department of Physics, The Ohio State University, Columbus, OH 43210, USA
| | - G Nabar
- William G. Lowrie Department of Chemical and Biomolecular Engineering, 151 West Woodruff Avenue and The Ohio State University, Columbus, OH 43210, USA
| | - N F Bouxsein
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - J J Chalmers
- William G. Lowrie Department of Chemical and Biomolecular Engineering, 151 West Woodruff Avenue and The Ohio State University, Columbus, OH 43210, USA
| | - G D Bachand
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - R Sooryakumar
- Department of Physics, The Ohio State University, Columbus, OH 43210, USA
| | - J O Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering, 151 West Woodruff Avenue and The Ohio State University, Columbus, OH 43210, USA and Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA.
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Structural modifications in polymeric micelles to impart multifunctionality for improved drug delivery. Ther Deliv 2016; 7:73-87. [PMID: 26769002 DOI: 10.4155/tde.15.90] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Polymeric micelles are macromolecular nanoconstructs which are formed by self-assembly of synthetic amphiphilic block copolymers. These copolymers could be chemically modified to expand their functionality and hence obtain a multifunctional micelle which could serve several functions simultaneously, for example, long circulation time along with active targeting, smart polymeric micelles providing on-demand drug release for example, pH responsive micelles, redox- and light-sensitive micelles, charge-conversion micelles and core/shell cross-linked micelles. Additionally, micelles could be tailored to carry a contrast agent or siRNA/miRNA along with the drug for greater clinical benefit. The focus of the current commentary would be to highlight such chemical modifications which impart multifunctionality to a single carrier and discuss challenges involved in clinical translation of these multifunctional micelles.
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32
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Micellar carriers for the delivery of multiple therapeutic agents. Colloids Surf B Biointerfaces 2015; 135:291-308. [PMID: 26263217 DOI: 10.1016/j.colsurfb.2015.07.046] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 07/16/2015] [Accepted: 07/19/2015] [Indexed: 12/27/2022]
Abstract
Multi-drug therapy is described as a simultaneous or sequential administration of two or more drugs with similar or different mechanisms of action and is recognized as a more efficient solution to combat successfully, various ailments. Polymeric micelles (PMs) are self-assemblies of block copolymers providing numerous opportunities for drug delivery. To date various micellar formulations were studied for delivery of drugs, nutraceuticals and genes; a few of them are in clinical trials. It was observed that there is an immense need for the development of PMs embedding multiple therapeutic agents to combat various ailments, including cancers, HIV/AIDS, malaria, multiple sclerosis, hypertension, infectious diseases, cardiovascular and metabolic diseases, immune disorders and many psychiatric disorders. Several combinations of drug-drug, drug-nutraceutical, drug-gene and drug-siRNA explored to date are detailed in this review, with a special emphasis on their potential and future perspectives. A summary of various preparation methods, characterization techniques and applications of PMs are also provided. This review presents a holistic approach on multi-drug delivery using micellar carriers and emphasizes on the development of therapeutic hybrids embedding novel combinations for safer and effective therapy.
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33
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Coaxial electrohydrodynamic atomization: Microparticles for drug delivery applications. J Control Release 2015; 205:70-82. [DOI: 10.1016/j.jconrel.2014.12.004] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 12/01/2014] [Accepted: 12/03/2014] [Indexed: 12/20/2022]
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34
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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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Nandi S, Kolusheva S, Malishev R, Trachtenberg A, Vinod TP, Jelinek R. Unilamellar Vesicles from Amphiphilic Graphene Quantum Dots. Chemistry 2015; 21:7755-9. [DOI: 10.1002/chem.201406170] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Indexed: 11/07/2022]
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36
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Cholkar K, Hariharan S, Gunda S, Mitra AK. Optimization of dexamethasone mixed nanomicellar formulation. AAPS PharmSciTech 2014; 15:1454-67. [PMID: 24980081 DOI: 10.1208/s12249-014-0159-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 05/22/2014] [Indexed: 12/11/2022] Open
Abstract
The purpose of this study was to develop a clear aqueous mixed nanomicellar formulation (MNF) of dexamethasone utilizing both D-α-tocopherol polyethylene glycol-1000 succinate (Vit E TPGS) and octoxynol-40 (Oc-40). In this study, Vit E TPGS and Oc-40 are independent variables. Formulations were prepared following solvent evaporation method. A three level full-factorial design was applied to optimize the formulation based on entrapment efficiency, size, and polydispersity index (PDI). A specific blend of Vit E TPGS and Oc-40 at a particular wt% ratio (4.5:2.0) produced excellent drug entrapment, loading, small mixed nanomicellar size and narrow PDI. Solubility of DEX in MNF is improved by ~6.3-fold relative to normal aqueous solubility. Critical micellar concentration (CMC) for blend of polymers (4.5:2.0) was found to be lower (0.012 wt%) than the individual polymers (Vit E TPGS (0.025 wt%) and Oc-40 (0.107 wt%)). No significant effect on mixed nanomicellar size and PDI with one-factor or multi-factor interactions was observed. Qualitative (1)H NMR studies confirmed absence of free drug in the outer aqueous MNF medium. MNF appeared to be highly stable. Cytotoxicity studies on rabbit primary corneal epithelial cells did not indicate any toxicity suggesting MNF of dexamethasone is safe and suitable for human topical ocular drops after further in vivo evaluations.
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