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Doan-Nguyen TP, Mantala K, Atithep T, Crespy D. Osmotic Pressure as Driving Force for Reducing the Size of Nanoparticles in Emulsions. ACS NANO 2022; 17:940-954. [PMID: 36472438 DOI: 10.1021/acsnano.2c05565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
We describe here a method to decrease particle size of nanoparticles synthesized by miniemulsion polymerization. Small nanoparticles or nanocapsules were obtained by generating an osmotic pressure to induce the diffusion of monomer molecules from the dispersed phase of a miniemulsion before polymerization to an upper oil layer. The size reduction is dependent on the difference in concentration of monomer in the dispersed phase and in the upper oil layer and on the solubility of the monomer in water. By labeling the emulsion droplets with a copolymer of stearyl methacrylate and a polymerizable dye, we demonstrated that the migration of the monomer to the upper hexadecane layer relied on molecular diffusion rather than diffusion of monomer droplets to the oil layer. Moreover, surface tension measurements confirmed that the emulsions were still in the miniemulsion regime and not in the microemulsion regime. The particle size can be tuned by controlling the duration during which the miniemulsion stayed in contact with the hexadecane layer, the interfacial area between the miniemulsion and the hexadecane layer and by the concentration of surfactant. Our method was applied to reduce the size of polystyrene and poly(methyl methacrylate) nanoparticles, nanocapsules of a copolymer of styrene and methyl methacrylic acid, and silica nanocapsules. This work demonstrated that a successful reduction of nanoparticle size in the miniemulsion process can be achieved without using excess amounts of surfactant. The method relies on building osmotic pressure in oil droplets dispersed in water which acts as semipermeable membrane.
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Affiliation(s)
- Thao P Doan-Nguyen
- Max Planck-VISTEC Partner Laboratory for Sustainable Materials, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Kanyarat Mantala
- Max Planck-VISTEC Partner Laboratory for Sustainable Materials, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Thassanant Atithep
- Max Planck-VISTEC Partner Laboratory for Sustainable Materials, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Daniel Crespy
- Max Planck-VISTEC Partner Laboratory for Sustainable Materials, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
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Kupikowska-Stobba B, Kasprzak M. Fabrication of nanoparticles for bone regeneration: new insight into applications of nanoemulsion technology. J Mater Chem B 2021; 9:5221-5244. [PMID: 34142690 DOI: 10.1039/d1tb00559f] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Introducing synthetic bone substitutes into the clinic was a major breakthrough in the regenerative medicine of bone. Despite many advantages of currently available bone implant materials such as biocompatiblity and osteoconductivity, they still suffer from relatively poor bioactivity, osteoinductivity and osteointegration. These properties can be effectively enhanced by functionalization of implant materials with nanoparticles such as osteoinductive hydroxyapatite nanocrystals, resembling inorganic part of the bone, or bioactive polymer nanoparticles providing sustained delivery of pro-osteogenic agents directly at implantation site. One of the most widespread techniques for fabrication of nanoparticles for bone regeneration applications is nanoemulsification. It allows manufacturing of nanoscale particles (<100 nm) that are injectable, 3D-printable, offer high surface-area-to-volume-ratio and minimal mass transport limitations. Nanoparticles obtained by this technique are of particular interest for biomedical engineering due to fabrication procedures requiring low surfactant concentrations, which translates into reduced risk of surfactant-related in vivo adverse effects and improved biocompatibility of the product. This review discusses nanoemulsion technology and its current uses in manufacturing of nanoparticles for bone regeneration applications. In the first section, we introduce basic concepts of nanoemulsification including nanoemulsion formation, properties and preparation methods. In the next sections, we focus on applications of nanoemulsions in fabrication of nanoparticles used for delivery of drugs/biomolecules facilitating osteogenesis and functionalization of bone implants with special emphasis on biomimetic hydroxyapatite nanoparticles, synthetic polymer nanoparticles loaded with bioactive compounds and bone-targeting nanoparticles. We also highlight key challenges in formulation of nanoparticles via nanoemulsification and outline potential further improvements in this field.
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Affiliation(s)
- Barbara Kupikowska-Stobba
- ŁUKASIEWICZ Research Network - Institute of Ceramics and Building Materials, Ceramic and Concrete Division in Warsaw, Department of Biomaterials, Postępu 9, 02-677, Warsaw, Poland.
| | - Mirosław Kasprzak
- ŁUKASIEWICZ Research Network - Institute of Ceramics and Building Materials, Ceramic and Concrete Division in Warsaw, Department of Biomaterials, Postępu 9, 02-677, Warsaw, Poland.
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Polymeric Nanoparticles in Gene Therapy: New Avenues of Design and Optimization for Delivery Applications. Polymers (Basel) 2019; 11:polym11040745. [PMID: 31027272 PMCID: PMC6523186 DOI: 10.3390/polym11040745] [Citation(s) in RCA: 157] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/08/2019] [Accepted: 04/18/2019] [Indexed: 01/19/2023] Open
Abstract
The field of polymeric nanoparticles is quickly expanding and playing a pivotal role in a wide spectrum of areas ranging from electronics, photonics, conducting materials, and sensors to medicine, pollution control, and environmental technology. Among the applications of polymers in medicine, gene therapy has emerged as one of the most advanced, with the capability to tackle disorders from the modern era. However, there are several barriers associated with the delivery of genes in the living system that need to be mitigated by polymer engineering. One of the most crucial challenges is the effectiveness of the delivery vehicle or vector. In last few decades, non-viral delivery systems have gained attention because of their low toxicity, potential for targeted delivery, long-term stability, lack of immunogenicity, and relatively low production cost. In 1987, Felgner et al. used the cationic lipid based non-viral gene delivery system for the very first time. This breakthrough opened the opportunity for other non-viral vectors, such as polymers. Cationic polymers have emerged as promising candidates for non-viral gene delivery systems because of their facile synthesis and flexible properties. These polymers can be conjugated with genetic material via electrostatic attraction at physiological pH, thereby facilitating gene delivery. Many factors influence the gene transfection efficiency of cationic polymers, including their structure, molecular weight, and surface charge. Outstanding representatives of polymers that have emerged over the last decade to be used in gene therapy are synthetic polymers such as poly(l-lysine), poly(l-ornithine), linear and branched polyethyleneimine, diethylaminoethyl-dextran, poly(amidoamine) dendrimers, and poly(dimethylaminoethyl methacrylate). Natural polymers, such as chitosan, dextran, gelatin, pullulan, and synthetic analogs, with sophisticated features like guanidinylated bio-reducible polymers were also explored. This review outlines the introduction of polymers in medicine, discusses the methods of polymer synthesis, addressing top down and bottom up techniques. Evaluation of functionalization strategies for therapeutic and formulation stability are also highlighted. The overview of the properties, challenges, and functionalization approaches and, finally, the applications of the polymeric delivery systems in gene therapy marks this review as a unique one-stop summary of developments in this field.
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4
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Mahvi DA, Liu R, Grinstaff MW, Colson YL, Raut CP. Local Cancer Recurrence: The Realities, Challenges, and Opportunities for New Therapies. CA Cancer J Clin 2018; 68:488-505. [PMID: 30328620 PMCID: PMC6239861 DOI: 10.3322/caac.21498] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/20/2018] [Accepted: 08/27/2018] [Indexed: 12/20/2022] Open
Abstract
Locoregional recurrence negatively impacts both long-term survival and quality of life for several malignancies. For appropriate-risk patients with an isolated, resectable, local recurrence, surgery represents the only potentially curative therapy. However, oncologic outcomes remain inferior for patients with locally recurrent disease even after macroscopically complete resection. Unfortunately, these operations are often extensive, with significant perioperative morbidity and mortality. This review highlights selected malignancies (mesothelioma, sarcoma, lung cancer, breast cancer, rectal cancer, and peritoneal surface malignancies) in which surgical resection is a key treatment modality and local recurrence plays a significant role in overall oncologic outcome with regard to survival and quality of life. For each type of cancer, the current, state-of-the-art treatment strategies and their outcomes are assessed. The need for additional therapeutic options is presented given the limitations of the current standard therapies. New and emerging treatment modalities, including polymer films and nanoparticles, are highlighted as potential future solutions for both prevention and treatment of locally recurrent cancers. Finally, the authors identify additional clinical and research opportunities and propose future research strategies based on the various patterns of local recurrence among the different cancers.
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Affiliation(s)
- David A Mahvi
- Postdoctoral Research Fellow, Division of Surgical Oncology, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Rong Liu
- Instructor in Surgery, Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Mark W Grinstaff
- Professor of Translational Research, Biomedical Engineering, Chemistry, Materials Science and Engineering, and Medicine, Department of Chemistry, Boston University, Boston, MA
| | - Yolonda L Colson
- Michael A. Bell Family Distinguished Chair in Healthcare Innovation and Professor of Surgery, Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Chandrajit P Raut
- Associate Professor of Surgery, Division of Surgical Oncology, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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Teixeira E, Lima JC, Parola AJ, Branco PS. Incorporation of Coumarin-Based Fluorescent Monomers into Co-Oligomeric Molecules. Polymers (Basel) 2018; 10:polym10040396. [PMID: 30966431 PMCID: PMC6415208 DOI: 10.3390/polym10040396] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 03/24/2018] [Accepted: 04/01/2018] [Indexed: 12/23/2022] Open
Abstract
With the purpose of modifying organic fluorescent dyes based on the coumarin scaffold, and developing and evaluating a route to its incorporation into a polymeric backbone, a study was conducted on the co-polymerization of 3-vinylcoumarins with styrene and methyl acrylate using 2,2-azobis(isobutyronitrile) (AIBN) as the radical initiator. The structural and photophysical characterization proved the incorporation of the coumarin monomers into the polymeric chain and further showed a decrease in the fluorescence quantum yields in the co-oligomers.
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Affiliation(s)
- Edgar Teixeira
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - João C Lima
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - A Jorge Parola
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - Paula S Branco
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
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Li Z, Yang Y, Zeng Y, Wang J, Liu H, Guo L, Li L. Novel imidazole fluorescent poly(ionic liquid) nanoparticles for selective and sensitive determination of pyrogallol. Talanta 2017; 174:198-205. [PMID: 28738568 DOI: 10.1016/j.talanta.2017.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/21/2017] [Accepted: 06/02/2017] [Indexed: 02/07/2023]
Abstract
This paper reports novel imidazole fluorescent poly(ionic liquid) nanoparticles (FPILNs) of poly(1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide (poly([MVI]Br) for selective and sensitive determination of pyrogallol. An imidazole ionic liquid of 1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide ([MVI]Br) was synthesized and used as the only monomer to obtain poly([MVI]Br) possessing phenyl fluorophores using a radical polymerization technique. The obtained poly([MVI]Br) can form nanoparticles in water. Scanning electron microscopy and dynamic light scattering results revealed majority of poly([MVI]Br) FPILNs with diameters ranging from 40 to 400nm. Although [MVI]Br showed weak fluorescence intensity, poly([MVI]Br) FPILNs exhibited strong fluorescence intensity with a quantum yield of 0.192, which is attributed to the presence of significant number of phenyl fluorophores and rigid construction. The selective and sensitive determination of pyrogallol was achieved through fluorescence quenching of poly([MVI]Br) FPILNs, and the quenching was attributed to the oxidation of poly([MVI]Br) FPILNs by O2˙¯ produced by pyrogallol autoxidation. The poly([MVI]Br) FPILNs-based sensor demonstrated a good linear relationship between the extent of fluorescence quenching and the concentration of pyrogallol in a range of 0.05 - 10.0μM, achieving a detection limit of 0.01μM. Furthermore, the poly([MVI]Br) FPILNs-based assay detected pyrogallol in environmental water samples, suggesting its potential to be applied for practical purposes.
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Affiliation(s)
- Zhouyang Li
- School of Petrochemical Engineering, Changzhou University, Changzhou 213016, PR China; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Yiwen Yang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Yanbo Zeng
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China.
| | - Jianbo Wang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Haiqing Liu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Longhua Guo
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Lei Li
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, PR China.
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Li H, Chang J, Hou T, Li F. Aggregation induced emission amphiphile with an ultra low critical micelle concentration: fabrication, self assembling, and cell imaging. J Mater Chem B 2015; 4:198-201. [PMID: 32263360 DOI: 10.1039/c5tb02462e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A novel aggregation induced emission amphiphile is constructed, containing a tetraphenylethene hydrophobic moiety connected to a hydrophilic quarternary ammonium salt. Owing to an ultra low critical micelle concentration in water, the amphiphile tends to self assemble into well-defined organic nanoaggregates that exhibit intense fluorescence, stable dispersibility in dilute solutions, and excellent biocompatibility for cell imaging.
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Affiliation(s)
- Haiyin Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China.
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Hickey JW, Santos JL, Williford JM, Mao HQ. Control of polymeric nanoparticle size to improve therapeutic delivery. J Control Release 2015; 219:536-547. [PMID: 26450667 DOI: 10.1016/j.jconrel.2015.10.006] [Citation(s) in RCA: 207] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 10/02/2015] [Accepted: 10/02/2015] [Indexed: 12/13/2022]
Abstract
As nanoparticle (NP)-mediated drug delivery research continues to expand, understanding parameters that govern NP interactions with the biological environment becomes paramount. The principles identified from the study of these parameters can be used to engineer new NPs, impart unique functionalities, identify novel utilities, and improve the clinical translation of NP formulations. One key design parameter is NP size. New methods have been developed to produce NPs with increased control of NP size between 10 and 200nm, a size range most relevant to physical and biochemical targeting through both intravascular and site-specific deliveries. Three notable techniques best suited for generating polymeric NPs with narrow size distributions are highlighted in this review: self-assembly, microfluidics-based preparation, and flash nanoprecipitation. Furthermore, the effect of NP size on the biological fate and transport properties at the molecular scale (protein-NP interactions) and the tissue and systemic scale (convective and diffusive transport of NPs) are analyzed here. These analyses underscore the importance of NP size control in considering clinical translation and assessment of therapeutic outcomes of NP delivery vehicles.
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Affiliation(s)
- John W Hickey
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, United States; Institute for Cell Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States; Translational Tissue Engineering Center, Johns Hopkins School of Medicine, Baltimore, MD 21287, United States
| | - Jose Luis Santos
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, United States; Translational Tissue Engineering Center, Johns Hopkins School of Medicine, Baltimore, MD 21287, United States; Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
| | - John-Michael Williford
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, United States; Translational Tissue Engineering Center, Johns Hopkins School of Medicine, Baltimore, MD 21287, United States
| | - Hai-Quan Mao
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, United States; Translational Tissue Engineering Center, Johns Hopkins School of Medicine, Baltimore, MD 21287, United States; Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, United States; Whitaker Biomedical Engineering Institute, Johns Hopkins University, Baltimore, MD 21218, United States.
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9
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Li H, Zhang X, Zhang X, Wang K, Liu H, Wei Y. Facile preparation of biocompatible and robust fluorescent polymeric nanoparticles via PEGylation and cross-linking. ACS APPLIED MATERIALS & INTERFACES 2015; 7:4241-4246. [PMID: 25658490 DOI: 10.1021/am5085308] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Novel cross-linked copolymers of PEG-IM-PhNH2 are successfully synthesized through PEGylation via radical polymerization of 2-isocyanatoethyl methacrylate and poly(ethylene glycol) monomethyl ether methacylate and subsequent cross-linking with an amino-terminated aggregation-induced emission fluorogen. Such obtained amphiphilic copolymers can self-assemble to form uniform fluorescent polymeric nanoparticles (FPNs) and be utilized for cell imaging. These cross-linked FPNs are demonstrated good water dispersibility with ultralow critical micelle concentration (∼ 0.002 mg mL(-1)), uniform morphology (98 ± 2 nm), high red fluorescence quantum yield, and excellent biocompatibility. More importantly, this novel strategy of fabricating cross-linked FPNs paves the way to the future development of more robust and biocompatible fluorescent bioprobes.
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Affiliation(s)
- Haiyin Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agriculture University , Qingdao, 266109, P. R. China
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10
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Li H, Zhang X, Zhang X, Wang K, Zhang Q, Wei Y. Fluorescent polymeric nanoparticles with ultra-low CMC for cell imaging. J Mater Chem B 2015; 3:1193-1197. [DOI: 10.1039/c4tb02098g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Fluorescent polymeric nanoparticles (FPNs) with ultra-low critical micelle concentration were facilely fabricated through radical polymerization and ring-opening crosslinking, and utilized for cell imaging.
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Affiliation(s)
- Haiyin Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agriculture University
- Qingdao
- P. R. China
| | - Xiqi Zhang
- Department of Chemistry
- The Tsinghua Center for Frontier Polymer Research
- Tsinghua University
- Beijing
- P. R. China
| | - Xiaoyong Zhang
- Department of Chemistry
- The Tsinghua Center for Frontier Polymer Research
- Tsinghua University
- Beijing
- P. R. China
| | - Ke Wang
- Department of Chemistry
- The Tsinghua Center for Frontier Polymer Research
- Tsinghua University
- Beijing
- P. R. China
| | - Qingdong Zhang
- Department of Chemistry
- The Tsinghua Center for Frontier Polymer Research
- Tsinghua University
- Beijing
- P. R. China
| | - Yen Wei
- Department of Chemistry
- The Tsinghua Center for Frontier Polymer Research
- Tsinghua University
- Beijing
- P. R. China
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11
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Chen CY, Chen CT. Reaction-based and single fluorescent emitter decorated ratiometric nanoprobe to detect hydrogen peroxide. Chemistry 2013; 19:16050-7. [PMID: 24123627 DOI: 10.1002/chem.201302342] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Indexed: 01/28/2023]
Abstract
A novel reaction-based cross-linked polymeric nanoprobe with a self-calibrating ratiometric fluorescence readout to selectively detect H2O2 is reported. The polymeric nanoprobe is fabricated by using hydrophobic H2O2-reactive boronic ester groups, crosslinker units, and environmentally sensitive 3-hydroxyflavone fluorophores through a miniemulsion polymerization. On treatment with H2O2, the boronic esters in the polymer are cleaved to form hydrophilic alcohols and subsequently lead to a hydrophobic-hydrophilic transition. Covalently linked 3-hydroxyflavones manifest the change in polarity as a ratiometric transition from green to blue, accompanied by a 500-fold increase in volume. Furthermore, this nanoprobe has been used for ratiometric sensing of glucose by monitoring the H2O2 generated during the oxidation of glucose by glucose oxidase, and thus successfully distinguished between normal and pathological levels of glucose.
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Affiliation(s)
- Chun-Yen Chen
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 Taiwan (R.O.C.), Fax: (+886) 2-23636359
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Zubris KAV, Liu R, Colby A, Schulz MD, Colson YL, Grinstaff MW. In vitro activity of Paclitaxel-loaded polymeric expansile nanoparticles in breast cancer cells. Biomacromolecules 2013; 14:2074-82. [PMID: 23617223 PMCID: PMC3915286 DOI: 10.1021/bm400434h] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Through a series of in vitro studies, the essential steps for intracellular drug delivery of paclitaxel using a pH-responsive nanoparticle system have been investigated in breast cancer cells. We successfully encapsulated paclitaxel within polymeric expansile nanoparticles (Pax-eNPs) at 5% loading via a miniemulsion polymerization procedure. Fluorescently tagged eNPs were readily taken up by MDA-MB-231 breast cancer cells grown in culture as confirmed by confocal microscopy and flow cytometry. The ability of the encapsulated paclitaxel to reach the cytoplasm was also observed using confocal microscopy and fluorescently labeled paclitaxel. Pax-eNPs were shown to be efficacious against three in vitro human breast adenocarcinoma cell lines (MDA-MB-231, MCF-7, and SK-BR-3) as well as cells isolated from the pleural effusions of two different breast cancer patients. Lastly, macropinocytosis was identified as the major cellular pathway responsible for eNP uptake, as confirmed using temperature-sensitive metabolic reduction, pharmacologic inhibitors, and fluid-phase marker colocalization.
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Affiliation(s)
- Kimberly Ann V. Zubris
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA 02215
| | - Rong Liu
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women’s Hospital, Boston, MA 02115
| | - Aaron Colby
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA 02215
| | - Morgan D. Schulz
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women’s Hospital, Boston, MA 02115
| | - Yolonda L. Colson
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women’s Hospital, Boston, MA 02115
| | - Mark W. Grinstaff
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA 02215
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13
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Breul AM, Hager MD, Schubert US. Fluorescent monomers as building blocks for dye labeled polymers: synthesis and application in energy conversion, biolabeling and sensors. Chem Soc Rev 2013; 42:5366-407. [DOI: 10.1039/c3cs35478d] [Citation(s) in RCA: 190] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Colson YL, Grinstaff MW. Biologically responsive polymeric nanoparticles for drug delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:3878-86. [PMID: 22988558 DOI: 10.1002/adma.201200420] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Responsive nanoparticles that release their drug cargo in accordance with a change in pH or oxidative stress are of significant clinical interest as this approach offers the opportunity to link drug delivery to a specific location or disease state. This research news article reviews the current state of this field by examining a series of published articles that highlight the novelty and benefits of using responsive polymeric particles to achieve functionally-targeted drug delivery.
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Affiliation(s)
- Yolonda L Colson
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston MA 02215, USA.
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15
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Bagby TR, Cai S, Duan S, Thati S, Aires DJ, Forrest L. Impact of molecular weight on lymphatic drainage of a biopolymer-based imaging agent. Pharmaceutics 2012; 4:276-95. [PMID: 24300232 PMCID: PMC3834911 DOI: 10.3390/pharmaceutics4020276] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 04/23/2012] [Accepted: 05/08/2012] [Indexed: 12/19/2022] Open
Abstract
New lymphatic imaging technologies are needed to better assess immune function and cancer progression and treatment. Lymphatic uptake depends mainly on particle size (10–100 nm) and charge. The size of carriers for imaging and drug delivery can be optimized to maximize lymphatic uptake, localize chemotherapy to lymphatic metastases, and enable visualization of treatment deposition. Toward this end, female BALB/c mice were injected subcutaneously in the hind footpad or forearm with a series of six different molecular weight hyaluronan (HA) near-infrared dye (HA-IR820) conjugates (ca. 5–200 nm). Mice were imaged using whole body fluorescent imaging over two weeks. HA-IR820 fluorescence was clearly visualized in the draining lymphatic capillaries, and in the popliteal and iliac or axillary lymph nodes. The 74-kDa HA-IR820 had the largest lymph node area-under-the-curve. In contrast to prior reports, mice bearing limb tumors exhibited three-fold longer retention of 74-kDa HA-IR820 in the popliteal node compared to mice without tumors. HA conjugate kinetics and disposition can be specifically tailored by altering their molecular weight. The specific lymphatic uptake and increased nodal retention of HA conjugates indicate significant potential for development as a natural biopolymer for intralymphatic drug delivery and imaging.
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Affiliation(s)
- Taryn R. Bagby
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Ave, Lawrence, KS 66047, USA; (T.R.B.); (S.C.); (S.D.); (S.T.)
| | - Shuang Cai
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Ave, Lawrence, KS 66047, USA; (T.R.B.); (S.C.); (S.D.); (S.T.)
| | - Shaofeng Duan
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Ave, Lawrence, KS 66047, USA; (T.R.B.); (S.C.); (S.D.); (S.T.)
| | - Sharadvi Thati
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Ave, Lawrence, KS 66047, USA; (T.R.B.); (S.C.); (S.D.); (S.T.)
| | - Daniel J. Aires
- Division of Dermatology, Department of Internal Medicine, University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA;
| | - Laird Forrest
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Ave, Lawrence, KS 66047, USA; (T.R.B.); (S.C.); (S.D.); (S.T.)
- Author to whom correspondence should be addressed; ; Tel.: +1-785-864-4338; Fax: +1-785-864-5736
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16
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Khullar OV, Griset AP, Gibbs-Strauss SL, Chirieac LR, Zubris KAV, Frangioni JV, Grinstaff MW, Colson YL. Nanoparticle migration and delivery of Paclitaxel to regional lymph nodes in a large animal model. J Am Coll Surg 2012; 214:328-37. [PMID: 22225645 PMCID: PMC3288886 DOI: 10.1016/j.jamcollsurg.2011.11.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/03/2011] [Accepted: 11/14/2011] [Indexed: 02/05/2023]
Abstract
BACKGROUND The aim of this study was to demonstrate feasibility of migration and in situ chemotherapy delivery to regional lymph nodes (LN) in a large animal model using an expansile polymer nanoparticle (eNP) delivery system. STUDY DESIGN Dual-labeled 50-nm and 100-nm eNP were prepared by encapsulating an IR-813 near-infrared (NIR) fluorescent dye within coumarin-conjugated expansile polymer nanoparticles (NIR-C-eNP). NIR imaging and fluorescent microscopy were used to identify intralymphatic migration of NIR-nanoparticles to draining inguinal or mesenteric LN after injection in swine hind legs or intestine. Nanoparticle-mediated intranodal delivery of chemotherapy was subsequently assessed with Oregon Green paclitaxel-loaded NIR-eNP (NIR-OGpax-eNP). RESULTS NIR imaging demonstrated direct lymphatic migration of 50-nm, but not 100-nm, NIR-C-eNP and NIR-OGpax-eNP to the draining regional LNs after intradermal injection in the hind leg or subserosal injection in intestine. Fluorescent microscopy demonstrated that IR-813 used for NIR real-time trafficking colocalized with both the coumarin-labeled polymer and paclitaxel chemotherapy and was identified within the subcapsular spaces of the draining LNs. These studies verify nodal migration of both nanoparticle and encapsulated payload, and confirm the feasibility of focusing chemotherapy delivery directly to regional nodes. CONCLUSIONS Regionally-targeted intranodal chemotherapy can be delivered to draining LNs for both skin and solid organs using 50-nm paclitaxel-loaded eNP.
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Affiliation(s)
- Onkar V Khullar
- Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, MA 02115, USA
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Pellach M, Goldshtein J, Ziv-Polat O, Margel S. Functionalised, photostable, fluorescent polystyrene nanoparticles of narrow size-distribution. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Local drug delivery strategies for cancer treatment: gels, nanoparticles, polymeric films, rods, and wafers. J Control Release 2011; 159:14-26. [PMID: 22154931 DOI: 10.1016/j.jconrel.2011.11.031] [Citation(s) in RCA: 581] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 11/23/2011] [Indexed: 12/27/2022]
Abstract
Polymer-based drug delivery depots have been investigated over the last several decades as a means to improve upon the lack of tumor targeting and severe systemic morbidities associated with intravenous chemotherapy treatments. These localized therapies exist in a variety of form factors designed to facilitate the delivery of drug directly to the site of disease in a controlled manner, sparing off-target tissue toxicities. Many of these depots are biodegradable and designed to maintain therapeutic concentrations of drug at the tumor site for a prolonged period of time. Thus a single implantation procedure is required, sometimes coincident with tumor excision surgery, and thereby biodegrading following complete release of the loaded active agent. Even though localized polymer depot delivery systems have been investigated, a surprisingly small subset of these technologies has demonstrated potentially curative preclinical results for cancer applications, and fewer have progressed toward commercialization. The aims of this article are to review the most well-studied and efficacious local polymer delivery systems from the last two decades, to examine the rationale for utilizing drug-eluting polymer implants in cancer patients, and to identify the patient cohorts that could most benefit from localized therapy. Finally, a discussion of the physiological barriers to localized therapy (i.e. drug penetration, transport), technical hurdles, and future outlook of the field is presented.
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Schulz MD, Zubris KAV, Wade JE, Padera RF, Xu X, Grinstaff MW, Colson YL. Paclitaxel-Loaded Expansile Nanoparticles in a Multimodal Treatment Model of Malignant Mesothelioma. Ann Thorac Surg 2011; 92:2007-13; discussion 2013-4. [DOI: 10.1016/j.athoracsur.2011.04.106] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Revised: 04/04/2011] [Accepted: 04/07/2011] [Indexed: 02/07/2023]
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20
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Liu R, Khullar OV, Griset AP, Wade JE, Zubris KAV, Grinstaff MW, Colson YL. Paclitaxel-loaded expansile nanoparticles delay local recurrence in a heterotopic murine non-small cell lung cancer model. Ann Thorac Surg 2011; 91:1077-83; discussion 1083-4. [PMID: 21440127 DOI: 10.1016/j.athoracsur.2010.12.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 12/20/2010] [Accepted: 12/23/2010] [Indexed: 02/07/2023]
Abstract
BACKGROUND Surgical resection remains the most effective treatment option for patients with early stage non-small cell lung cancer; however, comorbidities and poor pulmonary reserve often limit the extent of resection. Limited resections are associated with a twofold to threefold increase in locoregional recurrence, suggesting that microscopic disease remains near the resection margin. We hypothesized that local delivery of paclitaxel through 100-nm expansile polymer nanoparticles (pax-eNP) immediately after tumor resection could prevent local recurrence. METHODS Primary tumors, initiated on the dorsum of C57BL/6J mice through subcutaneous injection of 750,000 Lewis lung carcinoma cells, were excised when tumor volume reached 300 mm(3). After resection, animals were randomized to receive 300 μg paclitaxel intravenously or as pax-eNP locally at the tumor resection site versus unloaded eNP or saline controls. RESULTS In all mice receiving saline, unloaded eNP, or paclitaxel intravenously, visible local tumor recurrence developed at a median of 6 days. In contrast, tumor recurrence after pax-eNP was delayed to 10 days (pax-eNP versus all other groups, Kaplan-Meier, p < 0.05). Delay in local recurrence was associated with increased survival in the pax-eNP group (16 days) versus all other groups (11 and 12 days, p < 0.05). CONCLUSIONS The pax-eNP placed at the time of surgical resection delayed local tumor recurrence and modestly prolonged survival in a murine Lewis lung carcinoma recurrence model.
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Affiliation(s)
- Rong Liu
- Division of Thoracic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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