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Lorenzana-Vázquez G, Pavel I, Meléndez E. Gold Nanoparticles Functionalized with 2-Thiouracil for Antiproliferative and Photothermal Therapies in Breast Cancer Cells. Molecules 2023; 28:molecules28114453. [PMID: 37298929 DOI: 10.3390/molecules28114453] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Nanoparticles have been used to transport drugs to various body parts to treat cancer. Our interest is in gold nanoparticles (AuNPs) since they have the capacity to absorb light and convert it to heat, inducing cellular damage. This property is known as photothermal therapy (PTT) and has been studied in cancer treatment. In the present study, biocompatible citrate-reduced AuNPs were functionalized with a biologically active compound, 2-thiouracil (2-TU), of potential anticancer activity. Both the unfunctionalized (AuNPs) and functionalized (2-TU-AuNPs) were purified and characterized by UV-Vis absorption spectrophotometry, Zeta potential, and Transmission Electron Microscopy. Results showed monodispersed, spherical AuNPs with a mean core diameter of 20 ± 2 nm, a surface charge of -38 ± 5 mV, and a localized surface plasmon resonance peak at 520 nm. As a result of functionalization, the mean core diameter of 2-TU-AuNPs increased to 24 ± 4 nm, and the surface charge increased to -14 ± 1 mV. The functionalization of AuNPs and the load efficiency were further established through Raman spectroscopy and UV-Vis absorption spectrophotometry. The antiproliferative activities of AuNPs, 2-TU and 2-TU-AuNPs were examined by a 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay in the MDA-MB-231 breast cancer cell line. It was established that AuNPs significantly enhanced the antiproliferative activity of 2-TU. Furthermore, the irradiation of the samples with visible light at 520 nm decreased the half-maximal inhibitory concentration by a factor of 2. Thus, the 2-TU drug concentration and its side effect during treatments could be significantly reduced by synergistically exploiting the antiproliferative activity of 2-TU loaded onto AuNPs and the PTT effect of AuNPs.
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Affiliation(s)
| | - Ioana Pavel
- Department of Physical and Environmental Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, USA
| | - Enrique Meléndez
- Department of Chemistry, University of Puerto Rico, Mayaguez Campus, Mayaguez, PR 00681, USA
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2
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Dziedzic DSM, Mogharbel BF, Irioda AC, Stricker PEF, Woiski TD, Machado TN, Bezerra Jr AG, Athayde Teixeira de Carvalho K. Laser Ablated Albumin Functionalized Spherical Gold Nanoparticles Indicated for Stem Cell Tracking. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1034. [PMID: 36770041 PMCID: PMC9919444 DOI: 10.3390/ma16031034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/27/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Cell tracking in cell-based therapy applications helps distinguish cell participation among paracrine effect, neovascularization, and matrix deposition. This preliminary study examined the cellular uptake of gold nanoparticles (AuNPs), observing cytotoxicity and uptake of different sizes and AuNPs concentrations in Adipose-derived stromal cells (ASCs). ASCs were incubated for 24 h with Laser ablated Albumin functionalized spherical AuNPs (LA-AuNPs), with average sizes of 2 nm and 53 nm in diameter, in four concentrations, 127 µM, 84 µM, 42 µM, and 23 µM. Cytotoxicity was examined by Live/Dead assay, and erythrocyte hemolysis, and the effect on the cytoskeleton was investigated by immunocytochemistry for β-actin. The LA-AuNPs were internalized by the ASCs in a size and concentration-dependent manner. Clusters were observed as dispersed small ones in the cytosol, and as a sizeable perinuclear cluster, without significant harmful effects on the cells for up to 2 weeks. The Live/Dead and hemolysis percentage results complemented the observations that the larger 53 nm LA-AuNPs in the highest concentrated solution significantly lowered cell viability. The demonstrated safety, cellular uptake, and labelling persistency with LA-AuNPs, synthesized without the combination of chemical solutions, support their use for cell tracking in tissue engineering applications.
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Affiliation(s)
- Dilcele Silva Moreira Dziedzic
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, The Pelé Pequeno Príncipe Research Institute, Child and Adolescent Health Research & Pequeno Príncipe Faculties, Curitiba 80230-901, PR, Brazil
| | - Bassam Felipe Mogharbel
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, The Pelé Pequeno Príncipe Research Institute, Child and Adolescent Health Research & Pequeno Príncipe Faculties, Curitiba 80230-901, PR, Brazil
| | - Ana Carolina Irioda
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, The Pelé Pequeno Príncipe Research Institute, Child and Adolescent Health Research & Pequeno Príncipe Faculties, Curitiba 80230-901, PR, Brazil
| | - Priscila Elias Ferreira Stricker
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, The Pelé Pequeno Príncipe Research Institute, Child and Adolescent Health Research & Pequeno Príncipe Faculties, Curitiba 80230-901, PR, Brazil
| | - Thiago Demetrius Woiski
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, The Pelé Pequeno Príncipe Research Institute, Child and Adolescent Health Research & Pequeno Príncipe Faculties, Curitiba 80230-901, PR, Brazil
| | - Thiago Neves Machado
- Physics Department, Federal University of Technology, Curitiba 80230-901, PR, Brazil
| | | | - Katherine Athayde Teixeira de Carvalho
- Advanced Therapy and Cellular Biotechnology in Regenerative Medicine Department, The Pelé Pequeno Príncipe Research Institute, Child and Adolescent Health Research & Pequeno Príncipe Faculties, Curitiba 80230-901, PR, Brazil
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Kunrath MF, Shah FA, Dahlin C. Bench-to-bedside: Feasibility of nano-engineered and drug-delivery biomaterials for bone-anchored implants and periodontal applications. Mater Today Bio 2022; 18:100540. [PMID: 36632628 PMCID: PMC9826856 DOI: 10.1016/j.mtbio.2022.100540] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/03/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022] Open
Abstract
Nanotechnology and drug-release biomaterials have been thoroughly explored in the last few years aiming to develop specialized clinical treatments. However, it is rare to find biomaterials associated with drug delivery properties in the current dental market for application in oral bone- and periodontal-related procedures. The gap between basic scientific evidence and translation to a commercial product remains wide. Several challenges have been reported regarding the clinical translation of biomaterials with drug-delivery systems (BDDS) and nanofeatures. Therefore, processes for BDDS development, application in preclinical models, drug delivery doses, sterilization processes, storage protocols and approval requirements were explored in this review, associated with tentative solutions for these issues. The diversity of techniques and compounds/molecules applied to develop BDDS demands a case-by-case approach to manufacturing and validating a commercial biomaterial. Promising outcomes such as accelerated tissue healing and higher antibacterial response have been shown through basic and preclinical studies using BDDS and nano-engineered biomaterials; however, the adequate process for sterilization, storage, cost-effectiveness and possible cytotoxic effects remains unclear for multifunctional biomaterials incorporated with different chemical compounds; then BDDSs are rarely translated into products. The future benefits of BDDS and nano-engineered biomaterials have been reported suggesting personalized clinical treatment and a promising reduction in the use of systemic antibiotics. Finally, the launch of these specialized biomaterials with solid data and controlled traceability onto the market will generate strong specificity for healthcare treatments.
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Affiliation(s)
- Marcel F. Kunrath
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, P.O. Box 412, SE 405 30, Göteborg, Sweden,Department of Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Do Sul (PUCRS), Porto Alegre, Brazil,Corresponding author. Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, P.O. Box 412, SE 405 30, Göteborg, Sweden.
| | - Furqan A. Shah
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, P.O. Box 412, SE 405 30, Göteborg, Sweden
| | - Christer Dahlin
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, P.O. Box 412, SE 405 30, Göteborg, Sweden
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Johny J, van Halteren CER, Zwiehoff S, Behrends C, Bäumer C, Timmermann B, Rehbock C, Barcikowski S. Impact of Sterilization on the Colloidal Stability of Ligand-Free Gold Nanoparticles for Biomedical Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13030-13047. [PMID: 36260482 DOI: 10.1021/acs.langmuir.2c01557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sterilization is a major prerequisite for the utilization of nanoparticle colloids in biomedicine, a process well examined for particles derived from chemical synthesis although highly underexplored for electrostatically stabilized ligand-free gold nanoparticles (AuNPs). Hence, in this work, we comprehensively examined and compared the physicochemical characteristics of laser-generated ligand-free colloidal AuNPs exposed to steam sterilization and sterile filtration as a function of particle size and mass concentration and obtained physicochemical insight into particle growth processes. These particles exhibit long-term colloidal stability (up to 3 months) derived from electrostatic stabilization without using any ligands or surfactants. We show that particle growth attributed to cluster-based ripening occurs in smaller AuNPs (∼5 nm) following autoclaving, while larger particles (∼10 and ∼30 nm) remain stable. Sterile filtration, as an alternative effective sterilizing approach, has no substantial impact on the colloidal stability of AuNPs, regardless of particle size, although a mass loss of 5-10% is observed. Finally, we evaluated the impact of the sterilization procedures on potential particle functionality in proton therapy, using the formation of reactive oxygen species (ROS) as a readout. In particular, 5 nm AuNPs exhibit a significant loss in activity upon autoclaving, probably dedicated to specific surface area reduction and surface restructuring during particle growth. The filtered analog enhanced the ROS release by up to a factor of ∼2.0, at 30 ppm gold concentration. Our findings highlight the need for carefully adapting the sterilization procedure of ligand-free NPs to the desired biomedical application with special emphasis on particle size and concentration.
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Affiliation(s)
- Jacob Johny
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Charlotte E R van Halteren
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Sandra Zwiehoff
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Carina Behrends
- West German Cancer Centre (WTZ), University Hospital Essen, 45147 Essen, Germany
- Department of Physics, TU Dortmund University, 44227 Dortmund, Germany
- West German Proton Therapy Centre Essen (WPE), 45147 Essen, Germany
| | - Christian Bäumer
- West German Cancer Centre (WTZ), University Hospital Essen, 45147 Essen, Germany
- Department of Physics, TU Dortmund University, 44227 Dortmund, Germany
- West German Proton Therapy Centre Essen (WPE), 45147 Essen, Germany
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Beate Timmermann
- West German Cancer Centre (WTZ), University Hospital Essen, 45147 Essen, Germany
- West German Proton Therapy Centre Essen (WPE), 45147 Essen, Germany
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
- Department of Particle Therapy, University Hospital Essen, 45147 Essen, Germany
- Faculty of Medicine, University Hospital Essen, 45147 Essen, Germany
| | - Christoph Rehbock
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Stephan Barcikowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
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Sainaga Jyothi VGS, Bulusu R, Venkata Krishna Rao B, Pranothi M, Banda S, Kumar Bolla P, Kommineni N. Stability characterization for pharmaceutical liposome product development with focus on regulatory considerations: An update. Int J Pharm 2022; 624:122022. [PMID: 35843364 DOI: 10.1016/j.ijpharm.2022.122022] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/04/2022] [Accepted: 07/11/2022] [Indexed: 12/25/2022]
Abstract
Liposomes have several advantages, such as the ability to be employed as a carrier/vehicle for a variety of drug molecules and at the same time they are safe and biodegradable. In the recent times, compared to other delivery systems, liposomes have been one of the most well-established and commercializing drug products of new drug delivery methods for majority of therapeutic applications. On the other hand, it has several limitations, particularly in terms of stability, which impedes product development and performance. In this review, we reviewed all the potential instabilities (physical, chemical, and biological) that a formulation development scientist confronts throughout the development of liposomal formulations as along with the ways to overcome these challenges. We have also discussed the effect of microbiological contamination on liposomal formulations with a focus on the use of sterilization methods used to improve the stability. Finally, we have reviewed quality control techniques and regulatory considerations recommended by the agencies (USFDA and MHLW) for liposome drug product development.
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Affiliation(s)
- Vaskuri G S Sainaga Jyothi
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana 500037, India
| | - Raviteja Bulusu
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA
| | - Balaga Venkata Krishna Rao
- Department of Pharmaceutical Sciences & Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Mulinti Pranothi
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo 58105, ND, USA
| | - Srikanth Banda
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA
| | - Pradeep Kumar Bolla
- Department of Biomedical Engineering, College of Engineering, The University of Texas at El Paso, 500 W. University Ave, El Paso, TX 79968, USA.
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6
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Mitri N, Rahme K, Fracasso G, Ghanem E. Human blood biocompatibility and immunogenicity of scFvD2B PEGylated gold nanoparticles. NANOTECHNOLOGY 2022; 33:315101. [PMID: 35417900 DOI: 10.1088/1361-6528/ac66ef] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Single chain variable D2B antibody fragments (scFvD2Bs) exhibit high affinity binding to prostate specific membrane antigens overexpressed in metastatic prostate cancer (PC). Conjugation of scFvD2B to gold nanoparticles (AuNPs) would enhance its stability and plasma half-life circulation to shuttle theranostic agents in PC. In this study, we synthesized PEGylated scFvD2B-AuNPs (AuNPs-scFvD2B-PEG) and tested their integrity, biocompatibility, and immunogenicity in freshly withdrawn human blood. Prior to blood incubation, Zeta potential measurements, UV-Vis spectroscopy, and dynamic light scattering (DLS) were used to assess the physicochemical properties of our nano-complexes in the presence or absence of PEGylation. A surface plasmon resonance band shift of 2 and 4 nm confirmed the successful coating for AuNPs-scFvD2B and AuNPs-scFvD2B-PEG, respectively. Likewise, DLS revealed a size increase of ∼3 nm for AuNPs-scFvD2B and ∼19 nm for AuNPs-scFvD2B-PEG. Zeta potential increased from -34 to -19 mV for AuNPs-scFvD2B and reached -3 mV upon PEGylation. Similar assessment measures were applied post-incubation in human blood with additional immunogenicity tests, such as hemolysis assay, neutrophil function test, and pyridine formazan extraction. Interestingly, grafting PEG chains on AuNPs-scFvD2B precluded the binding of blood plasma proteins and reduced neutrophil activation level compared with naked AuNPs-citrate counterparts. Most likely, a hydrated negative PEG cloud shielded the NPs rendering blood compatiblility with less than 10% hemolysis. In conclusion, the biocompatible AuNPs-scFvD2B-PEG presents promising characteristics for PC targeted therapy, with minimal protein adsorption affinity, low immunorecognition, and reduced hemolytic activity.
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Affiliation(s)
- Nadim Mitri
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh, PO Box: 72, Lebanon
| | - Kamil Rahme
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh, PO Box: 72, Lebanon
| | | | - Esther Ghanem
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh, PO Box: 72, Lebanon
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Ferrari E, Barbero F, Busquets-Fité M, Franz-Wachtel M, Köhler HR, Puntes V, Kemmerling B. Growth-Promoting Gold Nanoparticles Decrease Stress Responses in Arabidopsis Seedlings. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3161. [PMID: 34947510 PMCID: PMC8707008 DOI: 10.3390/nano11123161] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/27/2022]
Abstract
The global economic success of man-made nanoscale materials has led to a higher production rate and diversification of emission sources in the environment. For these reasons, novel nanosafety approaches to assess the environmental impact of engineered nanomaterials are required. While studying the potential toxicity of metal nanoparticles (NPs), we realized that gold nanoparticles (AuNPs) have a growth-promoting rather than a stress-inducing effect. In this study we established stable short- and long-term exposition systems for testing plant responses to NPs. Exposure of plants to moderate concentrations of AuNPs resulted in enhanced growth of the plants with longer primary roots, more and longer lateral roots and increased rosette diameter, and reduced oxidative stress responses elicited by the immune-stimulatory PAMP flg22. Our data did not reveal any detrimental effects of AuNPs on plants but clearly showed positive effects on growth, presumably by their protective influence on oxidative stress responses. Differential transcriptomics and proteomics analyses revealed that oxidative stress responses are downregulated whereas growth-promoting genes/proteins are upregulated. These omics datasets after AuNP exposure can now be exploited to study the underlying molecular mechanisms of AuNP-induced growth-promotion.
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Affiliation(s)
| | - Francesco Barbero
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; (F.B.); (V.P.)
- Universitat Autònoma de Barcelona (UAB), Bellaterra, 08193 Barcelona, Spain
| | | | | | - Heinz-R. Köhler
- Animal Physiological Ecology, University of Tübingen, 72076 Tübingen, Germany;
| | - Victor Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; (F.B.); (V.P.)
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), 08032 Barcelona, Spain
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Jesmer AH, Huynh V, Marple AST, Ding X, Moran-Mirabal JM, Wylie RG. Graft-Then-Shrink: Simultaneous Generation of Antifouling Polymeric Interfaces and Localized Surface Plasmon Resonance Biosensors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52362-52373. [PMID: 34704743 DOI: 10.1021/acsami.1c14930] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Antifouling polymer coatings that are simple to manufacture are crucial for the performance of medical devices such as biosensors. "Grafting-to", a simple technique where presynthesized polymers are immobilized onto surfaces, is commonly employed but suffers from nonideal polymer packing leading to increased biofouling. Herein, we present a material prepared via the grafting-to method with improved antifouling surface properties and intrinsic localized surface plasmon resonance (LSPR) sensor capabilities. A new substrate shrinking fabrication method, Graft-then-Shrink, improved the antifouling properties of polymer-coated Au surfaces by altering graft-to polymer packing while simultaneously generating wrinkled Au structures for LSPR biosensing. Thiol-terminated, antifouling, hydrophilic polymers were grafted to Au-coated prestressed polystyrene (PS) followed by shrinking upon heating above the PS glass transition temperature. Interestingly, the polymer molecular weight and hydration influenced Au wrinkling patterns. Compared to Shrink-then-Graft controls, where polymers are immobilized post shrinking, Graft-then-Shrink increased the polymer content by 76% in defined footprints and improved the antifouling properties as demonstrated by 84 and 72% reduction in macrophage adhesion and protein adsorption, respectively. Wrinkled Au LSPR sensors had sensitivities of ∼200-1000 Δλ/ΔRIU, comparing favorably to commercial LSPR sensors, and detected biotin-avidin and desthiobiotin-avidin complexation in a concentration-dependent manner using a standard plate reader and a 96-well format.
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Affiliation(s)
- Alexander H Jesmer
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Vincent Huynh
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - April S T Marple
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Xiuping Ding
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Jose M Moran-Mirabal
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Ryan G Wylie
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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Insights into Terminal Sterilization Processes of Nanoparticles for Biomedical Applications. Molecules 2021; 26:molecules26072068. [PMID: 33916823 PMCID: PMC8038324 DOI: 10.3390/molecules26072068] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 12/28/2022] Open
Abstract
Nanoparticles possess a huge potential to be employed in numerous biomedical purposes; their applications may include drug delivery systems, gene therapy, and tissue engineering. However, the in vivo use in biomedical applications requires that nanoparticles exhibit sterility. Thus, diverse sterilization techniques have been developed to remove or destroy microbial contamination. The main sterilization methods include sterile filtration, autoclaving, ionizing radiation, and nonionizing radiation. Nonetheless, the sterilization processes can alter the stability, zeta potential, average particle size, and polydispersity index of diverse types of nanoparticles, depending on their composition. Thus, these methods may produce unwanted effects on the nanoparticles' characteristics, affecting their safety and efficacy. Moreover, each sterilization method possesses advantages and drawbacks; thus, the suitable method's choice depends on diverse factors such as the formulation's characteristics, batch volume, available methods, and desired application. In this article, we describe the current sterilization methods of nanoparticles. Moreover, we discuss the advantages and drawbacks of these methods, pointing out the changes in nanoparticles' biological and physicochemical characteristics after sterilization. Our main objective was to offer a comprehensive overview of terminal sterilization processes of nanoparticles for biomedical applications.
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Pradhan D, Biswasroy P, Goyal A, Ghosh G, Rath G. Recent Advancement in Nanotechnology-Based Drug Delivery System Against Viral Infections. AAPS PharmSciTech 2021; 22:47. [PMID: 33447909 PMCID: PMC7808403 DOI: 10.1208/s12249-020-01908-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/18/2020] [Indexed: 12/13/2022] Open
Abstract
In the last few decades, the exponential rise in the incidence of viral infections sets a global health emergency across the world. The biomimetic architecture, the ability to hijack host immune responses, continuous antigen shifting, and drafting are the major critical factors that are responsible for the unavailability of a concrete therapeutic regimen against viral infections. Further, inappropriate pharmacodynamic physicochemical and biological parameters such as low aqueous solubility, poor permeability, high affinity for plasm proteins, short biological half-lives, and fast elimination from the systemic circulation are the major critical factors that govern the suboptimal drug concentration at the target site that leads to the development of drug resistance. To address this issue, nanotechnology-based drug delivery approach is emerged as an altering method to attain the optimal drug concentration at the target site for a prolonged period by integrating the nanoengineering tools in the synthesis of nanoparticles. Nanodimensional configuration with enhanced permeability and retention effect, increased surface-area-to-volume ratio, provision for surface functionalization, etc., are the privileged aspects that make it an effective drug delivery system for dispensing the antiviral therapeutics. However, size, shape, charge, and surface topology of nanoparticles are the greater influential factors that determine target-specific drug delivery, optimum cellular uptake, degree of opsonization by the host immune cells, drug retention time, transcytosis, the extension of biological half-life, in vivo stability, and cytotoxicity. The review will enlighten the elaborative role of nanotechnology-based drug delivery and the major challenging aspect of clinical safety and efficacy.
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11
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Antimicrobial nanoparticle coatings for medical implants: Design challenges and prospects. Biointerphases 2020; 15:060801. [DOI: 10.1116/6.0000625] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zielińska A, Soles BB, Lopes AR, Vaz BF, Rodrigues CM, Alves TFR, Klensporf-Pawlik D, Durazzo A, Lucarini M, Severino P, Santini A, Chaud MV, Souto EB. Nanopharmaceuticals for Eye Administration: Sterilization, Depyrogenation and Clinical Applications. BIOLOGY 2020; 9:biology9100336. [PMID: 33066555 PMCID: PMC7602230 DOI: 10.3390/biology9100336] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/23/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022]
Abstract
Simple Summary Nanopharmaceuticals have revolutionized the way ophthalmic drugs are administered to overcome ocular delivery barriers and improve drug bioavailability. The design and production of an efficient ocular drug delivery system still remain a challenge. In this review, we discuss the sterilization and depyrogenation methods, commonly used for ophthalmic nanopharmaceuticals, and their clinical applications. Abstract As an immune-privileged target organ, the eyes have important superficial and internal barriers, protecting them from physical and chemical damage from exogenous and/or endogenous origins that would cause injury to visual acuity or even vision loss. These anatomic, physiological and histologic barriers are thus a challenge for drug access and entry into the eye. Novel therapeutic concepts are highly desirable for eye treatment. The design of an efficient ocular drug delivery system still remains a challenge. Although nanotechnology may offer the ability to detect and treat eye diseases, successful treatment approaches are still in demand. The growing interest in nanopharmaceuticals offers the opportunity to improve ophthalmic treatments. Besides their size, which needs to be critically monitored, nanopharmaceuticals for ophthalmic applications have to be produced under sterilized conditions. In this work, we have revised the different sterilization and depyrogenation methods for ophthalmic nanopharmaceuticals with their merits and drawbacks. The paper also describes clinical sterilization of drugs and the outcomes of inappropriate practices, while recent applications of nanopharmaceuticals for ocular drug delivery are also addressed.
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Affiliation(s)
- Aleksandra Zielińska
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (A.Z.); (B.B.S.); (A.R.L.); (B.F.V.); (C.M.R.)
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland
| | - Beatriz B. Soles
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (A.Z.); (B.B.S.); (A.R.L.); (B.F.V.); (C.M.R.)
| | - Ana R. Lopes
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (A.Z.); (B.B.S.); (A.R.L.); (B.F.V.); (C.M.R.)
| | - Beatriz F. Vaz
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (A.Z.); (B.B.S.); (A.R.L.); (B.F.V.); (C.M.R.)
| | - Camila M. Rodrigues
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (A.Z.); (B.B.S.); (A.R.L.); (B.F.V.); (C.M.R.)
| | - Thais F. R. Alves
- Laboratory of Biomaterial and Nanotechnology (LaBNUS). University of Sorocaba, Raposo Tavares 92.5, Sorocaba, 18078-005 São Paulo, Brazil;
| | - Dorota Klensporf-Pawlik
- Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61-875 Poznań, Poland;
| | - Alessandra Durazzo
- CREA-Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy; (A.D.); (M.L.)
| | - Massimo Lucarini
- CREA-Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy; (A.D.); (M.L.)
| | - Patricia Severino
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women& Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA 02139, USA;
- Biotechnological Postgraduate Program, University of Tiradentes (Unit), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil
- Institute of Technology and Research (ITP), Nanomedicine and Nanotechnology Laboratory (LNMed), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil
- Tiradentes Institute, 150 Mt Vernon St, Dorchester, MA 02125, USA
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, 80131 Napoli, Italy
- Correspondence: (A.S.); (M.V.C.); (E.B.S.); Tel.: +39-81-253-9317 (A.S.); +55-15-98172-4431 (M.V.C.); +351-239-488-400 (E.B.S.)
| | - Marco V. Chaud
- Laboratory of Biomaterial and Nanotechnology (LaBNUS). University of Sorocaba, Raposo Tavares 92.5, Sorocaba, 18078-005 São Paulo, Brazil;
- Correspondence: (A.S.); (M.V.C.); (E.B.S.); Tel.: +39-81-253-9317 (A.S.); +55-15-98172-4431 (M.V.C.); +351-239-488-400 (E.B.S.)
| | - Eliana B. Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (A.Z.); (B.B.S.); (A.R.L.); (B.F.V.); (C.M.R.)
- CEB—Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Correspondence: (A.S.); (M.V.C.); (E.B.S.); Tel.: +39-81-253-9317 (A.S.); +55-15-98172-4431 (M.V.C.); +351-239-488-400 (E.B.S.)
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A new way to prepare gold nanoparticles by sputtering - Sterilization, stability and other properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111087. [PMID: 32600693 DOI: 10.1016/j.msec.2020.111087] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 04/29/2020] [Accepted: 05/08/2020] [Indexed: 11/21/2022]
Abstract
We have developed a novel simple method for effective preparing gold nanoparticles (AuNPs) intended for utilization in biomedicine. The method is based on gold sputtering into liquid poly(ethylene glycol) (PEG). The PEG was used as a basic biocompatible stabilizer of the AuNP colloid. In addition, two naturally occurring polysaccharides - Chitosan (Ch) and Methylcellulose (MC) - were separately diluted into the PEG base with the aims to enhance the yield of the sputtering without changing the sputtering parameters, and to further improve the stability and the biocompatibility of the colloid. The colloids were sterilized by steam, and their stability was measured before and after the sterilization process by dynamic light scattering and UV-Vis spectrophotometry. The results indicated a higher sputtering yield in the colloids containing the polysaccharides. The colloids were also characterized by atomic absorption spectroscopy (AAS) to reveal the composition of the prepared nanoparticles by transmission electron microscopy (TEM) to visualize the nanoparticles and to evaluate their size and clustering, and by rheometry to estimate the viscosity of the colloids. The zeta-potential of the AuNPs was also determined as an important parameter indicating the stability and the biocompatibility of the colloid. In addition, in vitro tests of antimicrobial activity and cytotoxicity were carried out to estimate the biological activity and the biocompatibility of the colloids. Antimicrobial tests were performed by a drip test on two bacterial strains - Gram-positive Staphylococcus epidermidis and Gram-negative Escherichia coli. AuNP with chitosan proved to possess the highest antibacterial activity, especially towards the Gram-positive S. epidermidis. In vitro tests on eukaryotic cells, i.e. human osteoblastic cell line SAOS-2 and primary normal human dermal fibroblasts (NHDF), were performed after a 7-day cultivation to determine the effect and the toxic dose of the colloids on human cells. The studied colloid concentrations were in the range from 0.6 μg/ml to 6 μg/ml. Toxicity of the colloids started to reappear at a concentration of 4.5 μg/ml, especially with chitosan in the colloid, where the colloid with a concentration of 6 μg/ml proved to be the most toxic, especially towards the SAOS-2 cell line. However, the PEG and PEG-MC containing colloids proved to be relatively non-toxic, even at the highest concentration, but with a slowly decreasing tendency of the cell metabolic activity.
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Almeida TCS, Martins-Júnior PA, Joviano-Santos JV, Andrade VB, Ladeira LCD, Vieira MAR, Corrêa Junior A, Caliari MV, Ladeira LO, Ferreira AJ. Carbon nanotubes functionalized with sodium hyaluronate: Sterilization, osteogenic capacity and renal function analysis. Life Sci 2020; 248:117460. [PMID: 32092331 DOI: 10.1016/j.lfs.2020.117460] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 02/04/2020] [Accepted: 02/20/2020] [Indexed: 10/25/2022]
Abstract
AIM This study determined the optimum gamma irradiation dosage to sterilize sodium hyaluronate (HY), single-walled carbon nanotubes (SWCNT), multi-walled carbon nanotubes (MWCNT) and CNT functionalized with HY (HY-SWCNT and HY-MWCNT), evaluated the structural integrity of the materials and assessed whether sterilized materials kept biological properties without affecting renal function. MAIN METHODS Materials were submitted to dosages of 100 gγ to 30 Kgγ and plated onto agar mediums for colony forming units (CFUs) counting. Sterilized samples were inoculated with 107Bacillus clausii, submitted again to gamma irradiation, and plated in agar mediums for CFUs counting. Scanning electron microscope was used for structural evaluation of sterilized materials. Tooth sockets of rats were treated with sterilized materials for bone formation assessment and renal function of the animals was analyzed. KEY FINDINGS The optimum gamma dosage for sterilization was 250 gγ for HY and 2.5 Kgγ for the other materials without meaningful structural changes. Sterilized materials significantly increased bone formation (p < 0.05) and they did not compromise renal function and structure. SIGNIFICANCE Gamma irradiation efficiently sterilized HY, SWCNT, MWCNT, HY-SWCNT and HY-MWCNT without affecting structural aspects while maintaining their desirable biological properties.
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Affiliation(s)
- Tatiane Cristina Silva Almeida
- Department of Morphology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil; Nuclear Technology Development Center (CDTN), Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Paulo Antônio Martins-Júnior
- Department of Child and Adolescent Oral Health, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Julliane Vasconcellos Joviano-Santos
- Department of Morphology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Vanessa Barbosa Andrade
- Department of Morphology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | | | - Maria Aparecida Ribeiro Vieira
- Department of Physiology and Biophysics, Biological Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Ary Corrêa Junior
- Department of Microbiology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Marcelo Vidigal Caliari
- Department of General Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Luiz Orlando Ladeira
- Department of Physics, Institute of Exact Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Anderson José Ferreira
- Department of Morphology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil.
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15
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Borse V, Konwar AN. Synthesis and characterization of gold nanoparticles as a sensing tool for the lateral flow immunoassay development. SENSORS INTERNATIONAL 2020. [DOI: 10.1016/j.sintl.2020.100051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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16
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Spirou SV, Costa Lima SA, Bouziotis P, Vranješ-Djurić S, Efthimiadou EΚ, Laurenzana A, Barbosa AI, Garcia-Alonso I, Jones C, Jankovic D, Gobbo OL. Recommendations for In Vitro and In Vivo Testing of Magnetic Nanoparticle Hyperthermia Combined with Radiation Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E306. [PMID: 29734795 PMCID: PMC5977320 DOI: 10.3390/nano8050306] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/22/2018] [Accepted: 04/29/2018] [Indexed: 12/23/2022]
Abstract
Magnetic nanoparticle (MNP)-mediated hyperthermia (MH) coupled with radiation therapy (RT) is a novel approach that has the potential to overcome various practical difficulties encountered in cancer treatment. In this work, we present recommendations for the in vitro and in vivo testing and application of the two treatment techniques. These recommendations were developed by the members of Working Group 3 of COST Action TD 1402: Multifunctional Nanoparticles for Magnetic Hyperthermia and Indirect Radiation Therapy ("Radiomag"). The purpose of the recommendations is not to provide definitive answers and directions but, rather, to outline those tests and considerations that a researcher must address in order to perform in vitro and in vivo studies. The recommendations are divided into 5 parts: (a) in vitro evaluation of MNPs; (b) in vitro evaluation of MNP-cell interactions; (c) in vivo evaluation of the MNPs; (d) MH combined with RT; and (e) pharmacokinetic studies of MNPs. Synthesis and characterization of the MNPs, as well as RT protocols, are beyond the scope of this work.
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Affiliation(s)
- Spiridon V Spirou
- Department of Radiology, Sismanoglio General Hospital of Attica, Sismanogliou 1, Marousi 15126, Athens, Greece.
| | - Sofia A Costa Lima
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto 4050-313, Portugal.
| | - Penelope Bouziotis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", Aghia Paraskevi, Athens 15310, Greece.
| | - Sanja Vranješ-Djurić
- "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade 11351, Serbia.
| | - Eleni Κ Efthimiadou
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 15784, Greece.
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Agia Paraskevi Attikis, Athens 15310, Greece.
| | - Anna Laurenzana
- Department of Biomedical and Clinical Science "Mario Serio", University of Florence, 50134 Firenze, Italy.
| | - Ana Isabel Barbosa
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto 4050-313, Portugal.
| | - Ignacio Garcia-Alonso
- Department of Surgery, Radiology & Ph.M. University of the Basque Country, Bilbao E48940, Spain.
| | - Carlton Jones
- NanoTherics Ltd., Studio 3, Unit 3, Silverdale Enterprise Centre Kents Lane, Newcastle under Lyme ST5 6SR, UK.
| | - Drina Jankovic
- "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade 11351, Serbia.
| | - Oliviero L Gobbo
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, D02PN40 Dublin, Ireland.
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17
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Parhiz H, Khoshnejad M, Myerson JW, Hood E, Patel PN, Brenner JS, Muzykantov VR. Unintended effects of drug carriers: Big issues of small particles. Adv Drug Deliv Rev 2018; 130:90-112. [PMID: 30149885 PMCID: PMC6588191 DOI: 10.1016/j.addr.2018.06.023] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/11/2018] [Accepted: 06/26/2018] [Indexed: 02/06/2023]
Abstract
Humoral and cellular host defense mechanisms including diverse phagocytes, leukocytes, and immune cells have evolved over millions of years to protect the body from microbes and other external and internal threats. These policing forces recognize engineered sub-micron drug delivery systems (DDS) as such a threat, and react accordingly. This leads to impediment of the therapeutic action, extensively studied and discussed in the literature. Here, we focus on side effects of DDS interactions with host defenses. We argue that for nanomedicine to reach its clinical potential, the field must redouble its efforts in understanding the interaction between drug delivery systems and the host defenses, so that we can engineer safer interventions with the greatest potential for clinical success.
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Affiliation(s)
- Hamideh Parhiz
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Makan Khoshnejad
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jacob W Myerson
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Elizabeth Hood
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Priyal N Patel
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jacob S Brenner
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Vladimir R Muzykantov
- Department of Pharmacology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Center for Targeted Therapeutics and Translational Nanomedicine (CT3N), University of Pennsylvania, Philadelphia, PA, USA.
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18
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Graham-Gurysh E, Kelkar S, McCabe-Lankford E, Kuthirummal N, Brown T, Kock ND, Mohs AM, Levi-Polyachenko N. Hybrid Donor-Acceptor Polymer Particles with Amplified Energy Transfer for Detection and On-Demand Treatment of Breast Cancer. ACS APPLIED MATERIALS & INTERFACES 2018; 10:7697-7703. [PMID: 29457709 PMCID: PMC9270721 DOI: 10.1021/acsami.7b19503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Judicious combination of semiconducting polymers with alternating electron donor (D) and acceptor (A) segments created hybrid nanoparticles with amplified energy transfer and red-shifted emission, while simultaneously providing photothermal capabilities. Hybrid D-A polymer particles (H-DAPPs) passively localized within orthotopic breast tumors, serving as bright fluorescent beacons. Laser stimulation induced heat generation on par with gold nanorods, resulting in selective destruction of the tumor. H-DAPPs can also undergo multiple thermal treatments, with no loss of fluorescence intensity or photothermal potential. These results indicate that H-DAPPs provide new avenues for the synthesis of hybrid nanoparticles useful in localized detection and treatment of disease.
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Affiliation(s)
- Elizabeth Graham-Gurysh
- Department of Plastic and Reconstructive Surgery, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157, United Statesand
| | - Sneha Kelkar
- Department of Plastic and Reconstructive Surgery, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157, United Statesand
| | - Eleanor McCabe-Lankford
- Department of Plastic and Reconstructive Surgery, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157, United Statesand
| | - Narayanan Kuthirummal
- Department of Physics and Astronomy, College of Charleston, 66 George Street, Charleston, South Carolina 29424, United States
| | - Theodore Brown
- Department of Plastic and Reconstructive Surgery, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157, United Statesand
| | - Nancy D. Kock
- Department of Pathology, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157, United States
| | - Aaron M. Mohs
- Department of Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, and the Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, Nebraska 68198-6805, United States
| | - Nicole Levi-Polyachenko
- Department of Plastic and Reconstructive Surgery, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157, United Statesand
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19
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Galante R, Pinto TJA, Colaço R, Serro AP. Sterilization of hydrogels for biomedical applications: A review. J Biomed Mater Res B Appl Biomater 2017; 106:2472-2492. [PMID: 29247599 DOI: 10.1002/jbm.b.34048] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 11/04/2017] [Accepted: 11/12/2017] [Indexed: 12/19/2022]
Abstract
Despite the beneficial properties and outstanding potential of hydrogels for biomedical applications, several unmet challenges must be overcome, especially regarding to their known sensitivity to conventional sterilization methods. It is crucial for any biomaterial to withstand an efficient sterilization to obtain approval from regulatory organizations and to safely proceed to clinical trials. Sterility assurance minimizes the incidence of medical device-related infections, which still constitute a major concern in health care. In this review, we provide a detailed and comprehensive description of the published work from the past decade regarding the effects of sterilization on different types of hydrogels for biomedical applications. Advances in hydrogel production methods with simultaneous sterilization are also reported. Terminal sterilization methods can induce negative or positive effects on several material properties (e.g., aspect, size, color, chemical structure, mechanical integrity, and biocompatibility). Due to the complexity of factors involved (e.g., material properties, drug stability, sterilization conditions, and parameters), it is important to note the virtual impossibility of predicting the outcome of sterilization methods to determine a set of universal rules. Each system requires case-by-case testing to select the most suitable, effective method that allows for the main properties to remain unaltered. The impact of sterilization methods on the intrinsic properties of these systems is understudied, and further research is needed. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2472-2492, 2018.
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Affiliation(s)
- Raquel Galante
- Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Butantã, São Paulo, Brazil.,Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Terezinha J A Pinto
- Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Butantã, São Paulo, Brazil
| | - Rogério Colaço
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Engenharia Mecânica and IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Ana Paula Serro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.,Centro de Investigação Interdisciplinar Egas Moniz, Instituto Superior de Ciências da Saúde Egas Moniz, Quinta da Granja, Monte de Caparica, Caparica, Portugal
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20
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Liu X, Sui B, Sun J. Size- and shape-dependent effects of titanium dioxide nanoparticles on the permeabilization of the blood-brain barrier. J Mater Chem B 2017; 5:9558-9570. [PMID: 32264570 DOI: 10.1039/c7tb01314k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Titanium dioxide nanoparticles (TiO2-NPs) have been found to translocate into the brain by penetrating the blood-brain barrier (BBB), but it remains largely unknown how their physicochemical characteristics may impact BBB permeabilization. By testing TiO2 particles of different shapes and various sizes, we found that: (1) small, spherical TiO2-NPs permeabilized a BBB-like human brain microvasculature endothelial cell monolayer better than rod-like or large particles; (2) TiO2-NPs stimulated F-actin stress fiber formation, and induced paracellular gaps and ROCK II activation. The TiO2-NP-mediated BBB permeabilization was associated with intracellular uptake and cytoskeletal re-organization; and (3) in rats, spherical, small TiO2-NPs significantly increased the BBB permeability and entered the brain. The TiO2-NPs were accumulated in the brain, but no obvious pathological anomaly was observed in the cerebral cortex and hippocampus. Our study investigated the neurotoxicity of TiO2-NPs, thereby providing scientific evaluation for the potential biomedical applications of TiO2-NPs.
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Affiliation(s)
- Xin Liu
- Shanghai Biomaterials Research & Testing Center, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, No. 427, Ju-men Road, Shanghai 200023, P. R. China.
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21
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Talamini L, Violatto MB, Cai Q, Monopoli MP, Kantner K, Krpetić Ž, Perez-Potti A, Cookman J, Garry D, P Silveira C, Boselli L, Pelaz B, Serchi T, Cambier S, Gutleb AC, Feliu N, Yan Y, Salmona M, Parak WJ, Dawson KA, Bigini P. Influence of Size and Shape on the Anatomical Distribution of Endotoxin-Free Gold Nanoparticles. ACS NANO 2017; 11:5519-5529. [PMID: 28558193 DOI: 10.1021/acsnano.7b00497] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The transport and the delivery of drugs through nanocarriers is a great challenge of pharmacology. Since the production of liposomes to reduce the toxicity of doxorubicin in patients, a plethora of nanomaterials have been produced and characterized. Although it is widely known that elementary properties of nanomaterials influence their in vivo kinetics, such interaction is often poorly investigated in many preclinical studies. The present study aims to evaluate the actual effect of size and shape on the biodistribution of a set of gold nanoparticles (GNPs) after intravenous administration in mice. To this goal, quantitative data achieved by inductively coupled plasma mass spectrometry and observational results emerging from histochemistry (autometallography and enhanced dark-field hyperspectral microscopy) were combined. Since the immune system plays a role in bionano-interaction we used healthy immune-competent mice. To keep the immune surveillance on the physiological levels we synthesized endotoxin-free GNPs to be tested in specific pathogen-free animals. Our study mainly reveals that (a) the size and the shape greatly influence the kinetics of accumulation and excretion of GNPs in filter organs; (b) spherical and star-like GNPs showed the same percentage of accumulation, but a different localization in liver; (c) only star-like GNPs are able to accumulate in lung; (d) changes in the geometry did not improve the passage of the blood brain barrier. Overall, this study can be considered as a reliable starting point to drive the synthesis and the functionalization of potential candidates for theranostic purposes in many fields of research.
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Affiliation(s)
- Laura Talamini
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
| | - Martina B Violatto
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
| | - Qi Cai
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Marco P Monopoli
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
- RCSI Pharmaceutical and Medical Chemistry, Royal College of Surgeons in Ireland , St. Stephen's Green, Dublin, Dublin 2, Ireland
| | - Karsten Kantner
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
| | - Željka Krpetić
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
- School of Environment and Life Sciences, University of Salford Manchester , Salford, M5 4WT, United Kingdom
| | - André Perez-Potti
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Jennifer Cookman
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - David Garry
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Camila P Silveira
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Luca Boselli
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Beatriz Pelaz
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
| | - Tommaso Serchi
- Environmental Health group, Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) , L-4362, Luxembourg
| | - Sébastien Cambier
- Environmental Health group, Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) , L-4362, Luxembourg
| | - Arno C Gutleb
- Environmental Health group, Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) , L-4362, Luxembourg
| | - Neus Feliu
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
- Department of Laboratory Medicine (LABMED), Karolinska Institutet , Stockholm, 171 77, Sweden
- Medcom Advance S.A., Barcelona, 08840, Spain
| | - Yan Yan
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Mario Salmona
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
| | - Wolfgang J Parak
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
| | - Kenneth A Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Paolo Bigini
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
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Li Y, Fujita M, Boraschi D. Endotoxin Contamination in Nanomaterials Leads to the Misinterpretation of Immunosafety Results. Front Immunol 2017; 8:472. [PMID: 28533772 PMCID: PMC5420554 DOI: 10.3389/fimmu.2017.00472] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/05/2017] [Indexed: 12/16/2022] Open
Abstract
Given the presence of engineered nanomaterials in consumers' products and their application in nanomedicine, nanosafety assessment is becoming increasingly important. In particular, immunosafety aspects are being actively investigated. In nanomaterial immunosafety testing strategies, it is important to consider that nanomaterials and nanoparticles are very easy to become contaminated with endotoxin, which is a widespread contaminant coming from the Gram-negative bacterial cell membrane. Because of the potent inflammatory activity of endotoxin, contaminated nanomaterials can show inflammatory/toxic effects due to endotoxin, which may mask or misidentify the real biological effects (or lack thereof) of nanomaterials. Therefore, before running immunosafety assays, either in vitro or in vivo, the presence of endotoxin in nanomaterials must be evaluated. This calls for using appropriate assays with proper controls, because many nanomaterials interfere at various levels with the commercially available endotoxin detection methods. This also underlines the need to develop robust and bespoke strategies for endotoxin evaluation in nanomaterials.
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Affiliation(s)
- Yang Li
- Department of Dermatology, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Mayumi Fujita
- Department of Dermatology, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Diana Boraschi
- Institute of Protein Biochemistry, National Research Council (CNR), Napoli, Italy
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23
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Blood-brain barrier dysfunction induced by silica NPs in vitro and in vivo : Involvement of oxidative stress and Rho-kinase/JNK signaling pathways. Biomaterials 2017; 121:64-82. [DOI: 10.1016/j.biomaterials.2017.01.006] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 01/03/2017] [Accepted: 01/03/2017] [Indexed: 01/03/2023]
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24
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Henriksen-Lacey M, Carregal-Romero S, Liz-Marzán LM. Current Challenges toward In Vitro Cellular Validation of Inorganic Nanoparticles. Bioconjug Chem 2017; 28:212-221. [PMID: 27709892 PMCID: PMC5247775 DOI: 10.1021/acs.bioconjchem.6b00514] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/06/2016] [Indexed: 01/09/2023]
Abstract
An impressive development has been achieved toward the production of well-defined "smart" inorganic nanoparticles, in which the physicochemical properties can be controlled and predicted to a high degree of accuracy. Nanoparticle design is indeed highly advanced, multimodal and multitargeting being the norm, yet we do not fully understand the obstacles that nanoparticles face when used in vivo. Increased cooperation between chemists and biochemists, immunologists and physicists, has allowed us to think outside the box, and we are slowly starting to understand the interactions that nanoparticles undergo under more realistic situations. Importantly, such an understanding involves awareness about the limitations when assessing the influence of such inorganic nanoparticles on biological entities and vice versa, as well as the development of new validation strategies.
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Affiliation(s)
- Malou Henriksen-Lacey
- CIC biomaGUNE, Paseo
de Miramón 182, 20014 Donostia − San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina
(CIBER-BBN), 2014 Donostia − San Sebastián, Spain
| | | | - Luis M. Liz-Marzán
- CIC biomaGUNE, Paseo
de Miramón 182, 20014 Donostia − San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina
(CIBER-BBN), 2014 Donostia − San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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25
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About the Sterilization of Chitosan Hydrogel Nanoparticles. PLoS One 2016; 11:e0168862. [PMID: 28002493 PMCID: PMC5176313 DOI: 10.1371/journal.pone.0168862] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 12/07/2016] [Indexed: 01/12/2023] Open
Abstract
In the last years, nanostructured biomaterials have raised a great interest as platforms for delivery of drugs, genes, imaging agents and for tissue engineering applications. In particular, hydrogel nanoparticles (HNP) associate the distinctive features of hydrogels (high water uptake capacity, biocompatibility) with the advantages of being possible to tailor its physicochemical properties at nano-scale to increase solubility, immunocompatibility and cellular uptake. In order to be safe, HNP for biomedical applications, such as injectable or ophthalmic formulations, must be sterile. Literature is very scarce with respect to sterilization effects on nanostructured systems, and even more in what concerns HNP. This work aims to evaluate the effect and effectiveness of different sterilization methods on chitosan (CS) hydrogel nanoparticles. In addition to conventional methods (steam autoclave and gamma irradiation), a recent ozone-based method of sterilization was also tested. A model chitosan-tripolyphosphate (TPP) hydrogel nanoparticles (CS-HNP), with a broad spectrum of possible applications was produced and sterilized in the absence and in the presence of protective sugars (glucose and mannitol). Properties like size, zeta potential, absorbance, morphology, chemical structure and cytotoxicity were evaluated. It was found that the CS-HNP degrade by autoclaving and that sugars have no protective effect. Concerning gamma irradiation, the formation of agglomerates was observed, compromising the suspension stability. However, the nanoparticles resistance increases considerably in the presence of the sugars. Ozone sterilization did not lead to significant physical adverse effects, however, slight toxicity signs were observed, contrarily to gamma irradiation where no detectable changes on cells were found. Ozonation in the presence of sugars avoided cytotoxicity. Nevertheless, some chemical alterations were observed in the nanoparticles.
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26
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Freag MS, Elnaggar YS, Abdelmonsif DA, Abdallah OY. Stealth, biocompatible monoolein-based lyotropic liquid crystalline nanoparticles for enhanced aloe-emodin delivery to breast cancer cells: in vitro and in vivo studies. Int J Nanomedicine 2016; 11:4799-4818. [PMID: 27703348 PMCID: PMC5036603 DOI: 10.2147/ijn.s111736] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Recently, research has progressively highlighted on clues from conventional use of herbal medicines to introduce new anticancer drugs. Aloe-emodin (AE) is a herbal drug with promising anticancer activity. Nevertheless, its clinical utility is handicapped by its low solubility. For the first time, this study aims to the fabrication of surface-functionalized polyethylene glycol liquid crystalline nanoparticles (PEG-LCNPs) of AE to enhance its water solubility and enable its anticancer use. Developed AE-PEG-LCNPs were optimized via particle size and zeta potential measurements. Phase behavior, solid state characteristics, hemocompatibility, and serum stability of LCNPs were assessed. Sterile formulations were developed using various sterilization technologies. Furthermore, the potential of the formulations was investigated using cell culture, pharmacokinetics, biodistribution, and toxicity studies. AE-PEG-LCNPs showed particle size of 190 nm and zeta potential of −49.9, and PEGylation approach reduced the monoolein hemolytic tendency to 3% and increased the serum stability of the nanoparticles. Sterilization of liquid and lyophilized AE-PEG-LCNPs via autoclaving and γ-radiations, respectively, insignificantly affected the physicochemical properties of the nanoparticles. Half maximal inhibitory concentration of AE-PEG-LCNPs was 3.6-fold lower than free AE after 48 hours and their cellular uptake was threefold higher than free AE after 24-hour incubation. AE-PEG-LCNPs presented 5.4-fold increase in t1/2 compared with free AE. Biodistribution and toxicity studies showed reduced AE-PEG-LCNP uptake by reticuloendothelial system organs and good safety profile. PEGylated LCNPs could serve as a promising nanocarrier for efficient delivery of AE to cancerous cells.
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Affiliation(s)
- May S Freag
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University
| | - Yosra Sr Elnaggar
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University; Department of Pharmaceutics, Faculty of Pharmacy and Drug Manufacturing, Pharos University in Alexandria
| | - Doaa A Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Ossama Y Abdallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University
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27
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Li Y, Boraschi D. Endotoxin contamination: a key element in the interpretation of nanosafety studies. Nanomedicine (Lond) 2016; 11:269-87. [DOI: 10.2217/nnm.15.196] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The study of toxicity and potential risks of engineered nanoparticles is of particular importance in nanomedicine. Endotoxin, a common contaminant of bacterial origin, has biological effects that can mask the true biological effects of nanoparticles, if its presence is overlooked. In this review, we report the features of nanoparticle contamination by endotoxin, and the different biological effects of endotoxin-contaminated nanoparticles. We will describe different methods for endotoxin detection applied to nanoparticles, and discuss their pros and cons. Eventually, we describe various methods for eliminating endotoxin contamination in nanoparticles. Although there is no universal technique for efficiently removing endotoxin from nanoparticles, specific solutions can be found case by case, which can allow us to perform nanosafety studies in biologically relevant conditions.
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Affiliation(s)
- Yang Li
- Laboratory of Innate Immunity & Cytokines, Institute of Protein Biochemistry, National Research Council, 80131 Naples, Italy
| | - Diana Boraschi
- Laboratory of Innate Immunity & Cytokines, Institute of Protein Biochemistry, National Research Council, 80131 Naples, Italy
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28
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Gabas IM, Stepien G, Moros M, Mitchell SG, de la Fuente JM. In vitro cell cytotoxicity profile and morphological response to polyoxometalate-stabilised gold nanoparticles. NEW J CHEM 2016. [DOI: 10.1039/c5nj02775f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyoxometalate-stabilised gold nanoparticles internalise in vast quantities into kidney epithelial and skin melanoma cell lines causing antiproliferative action on tumoural cells.
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Affiliation(s)
| | - Grazyna Stepien
- Instituto de Nanociencia de Aragón (INA)
- Universidad de Zaragoza
- Spain
| | - María Moros
- Istituto di Scienze Applicate e Sistemi Intelligenti-CNR
- Pozzuoli
- Italy
| | - Scott G. Mitchell
- Instituto de Ciencia de Materiales de Aragón-CSIC/Universidad de Zaragoza
- Spain
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29
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Miao ZH, Wang H, Yang H, Li ZL, Zhen L, Xu CY. Intrinsically Mn2+-Chelated Polydopamine Nanoparticles for Simultaneous Magnetic Resonance Imaging and Photothermal Ablation of Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16946-16952. [PMID: 26196160 DOI: 10.1021/acsami.5b06265] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Theranostic agents for magnetic resonance imaging (MRI) guided photothermal therapy have attracted intensive interest in cancer diagnosis and treatment. However, the development of biocompatible theranostic agents with high photothermal conversion efficiency and good MRI contrast effect remains a challenge. Herein, PEGylated Mn2+-chelated polydopamine (PMPDA) nanoparticles were successfully developed as novel theranostic agents for simultaneous MRI signal enhancement and photothermal ablation of cancer cells, based on intrinsic manganese-chelating properties and strong near-infrared absorption of polydopamine nanomaterials. The obtained PMPDA nanoparticles showed significant MRI signal enhancement for both in vitro and in vivo imaging. Highly effective photothermal ablation of HeLa cells exposed to PMPDA nanoparticles was then achieved upon laser irradiation for 10 min. Furthermore, the excellent biocompatibility of PMPDA nanoparticles, because of the use of Mn2+ ions as diagnostic agents and biocompatible polydopamine as photothermal agents, was confirmed by a standard MTT assay. Therefore, the developed PMPDA nanoparticles could be used as a promising theranostic agent for MRI-guided photothermal therapy of cancer cells.
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Affiliation(s)
- Zhao-Hua Miao
- †School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
- ‡MOE Key Laboratory of Micro-System and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Hui Wang
- §School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Huanjie Yang
- §School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Zheng-Lin Li
- ∥Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology, Harbin 150000, People's Republic of China
| | - Liang Zhen
- †School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
- ‡MOE Key Laboratory of Micro-System and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Cheng-Yan Xu
- †School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
- ‡MOE Key Laboratory of Micro-System and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin 150080, People's Republic of China
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30
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Sousa-Herves A, Sánchez Espinel C, Fahmi A, González-Fernández Á, Fernandez-Megia E. In situ nanofabrication of hybrid PEG-dendritic-inorganic nanoparticles and preliminary evaluation of their biocompatibility. NANOSCALE 2015; 7:3933-3940. [PMID: 25530028 DOI: 10.1039/c4nr06155a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An in situ template fabrication of inorganic nanoparticles using carboxylated PEG-dendritic block copolymers of the GATG family is described as a function of the dendritic block generation, the metal (Au, CdSe) and metal molar ratio. The biocompatibility of the generated nanoparticles analysed in terms of their aggregation in physiological media, cytotoxicity and uptake by macrophages relates to the PEG density of the surface of the hybrids.
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Affiliation(s)
- Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782, Santiago de Compostela, Spain.
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31
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Soenen SJ, Parak WJ, Rejman J, Manshian B. (Intra)cellular stability of inorganic nanoparticles: effects on cytotoxicity, particle functionality, and biomedical applications. Chem Rev 2015; 115:2109-35. [PMID: 25757742 DOI: 10.1021/cr400714j] [Citation(s) in RCA: 292] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Stefaan J Soenen
- Biomedical MRI Unit/MoSAIC, Department of Medicine, KULeuven , B3000 Leuven, Belgium
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32
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Cole LE, Vargo-Gogola T, Roeder RK. Contrast-enhanced X-ray detection of breast microcalcifications in a murine model using targeted gold nanoparticles. ACS NANO 2014; 8:7486-7496. [PMID: 24992365 DOI: 10.1021/nn5027802] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Microcalcifications are deposits of hydroxyapatite (HA) mineral within breast tissue and the most common abnormality detected by mammography when screening for breast cancer due to exhibiting greater X-ray attenuation than the surrounding tissue. However, the detection of microcalcifications is limited by the sensitivity and specificity of mammography. Therefore, the objective of this study was to investigate in vivo targeted delivery of bisphosphonate-functionalized gold nanoparticles (BP-Au NPs) for contrast-enhanced detection of microcalcifications using computed tomography (CT). A murine model was developed for precise, a priori control over the level of microcalcification burden by injecting varying concentrations of HA crystals in a Matrigel carrier into mammary glands. The measured X-ray attenuation of microcalcifications containing varying HA concentrations demonstrated that the model was reproducible and able to recapitulate varying levels of microcalcification burden, including levels undetectable by CT in the absence of contrast enhancement. After intramammary delivery, BP-Au NPs provided enhanced contrast for the detection of microcalcifications that were otherwise below the CT detection limit. BP-Au NPs targeted microcalcifications due to specific binding to HA crystal surfaces, resulting in contrast between the HA microcalcification site and surrounding tissue which was visibly apparent (∼30-135 HU) within 2 days after delivery. Therefore, targeted BP-Au NPs enabled improved sensitivity and specificity for the detection of microcalcifications.
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Affiliation(s)
- Lisa E Cole
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program and ‡Harper Cancer Research Institute, University of Notre Dame , Notre Dame, Indiana 46556, United States
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33
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Vetten MA, Yah CS, Singh T, Gulumian M. Challenges facing sterilization and depyrogenation of nanoparticles: effects on structural stability and biomedical applications. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1391-9. [PMID: 24709329 DOI: 10.1016/j.nano.2014.03.017] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 03/01/2014] [Accepted: 03/29/2014] [Indexed: 12/17/2022]
Abstract
This review outlines and compares techniques that are currently available for the sterilization of nanoparticles and addresses the topic of endotoxin contamination. Several techniques are available for the removal of microbial contamination from nanoparticles developed for use in nanomedicine applications. These techniques include filtration, autoclaving and irradiation, as well as formaldehyde, ethylene oxide and gas plasma treatments. Of these sterilization methodologies, filtration may potentially remove microbial contamination without altering the physicochemical properties of the carrier nanoparticles, nor affecting their toxicity and functionality. However, no single process may be applied to all nanoparticle preparations and, therefore, it is recommended that each nanoparticle-drug system be validated on a case-by-case basis. From the clinical editor: This comprehensive review covers the currently available methods for removal of microbial contaminations from nanoparticles for nanomedicine applications. The review highlights the pros and cons of each available method. Authors conclude that there is no single best method and recommend a customized approach for each nanoparticle system.
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Affiliation(s)
- Melissa A Vetten
- Toxicology and Biochemistry Section, National Institute for Occupational Health, National Health Laboratory Services, Johannesburg, South Africa; Department of Molecular Medicine and Haematology, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
| | - Clarence S Yah
- Human Sciences Research Council, Newton Park, South Africa; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Tanusha Singh
- Immunology and Microbiology Section, National Institute for Occupational Health, National Health Laboratory Services, Johannesburg, South Africa; Department of Immunology, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Mary Gulumian
- Toxicology and Biochemistry Section, National Institute for Occupational Health, National Health Laboratory Services, Johannesburg, South Africa; Department of Molecular Medicine and Haematology, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
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34
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de Oliveira R, Zhao P, Li N, de Santa Maria LC, Vergnaud J, Ruiz J, Astruc D, Barratt G. Synthesis and in vitro studies of gold nanoparticles loaded with docetaxel. Int J Pharm 2013; 454:703-11. [PMID: 23701998 DOI: 10.1016/j.ijpharm.2013.05.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 05/06/2013] [Accepted: 05/11/2013] [Indexed: 10/26/2022]
Abstract
The aim of these studies was to synthesize, characterize and evaluate the efficacy of pegylated gold nanoparticles (AuNPs) that differed in their PEG molecular weight, using PEG 550 and PEG 2000. The synthesis of the gold nanoparticles was carried out by modified Brust method with a diameter of 4-15 nm. The targeting agent folic acid was introduced by the covalent linkage. Finally, the anti-cancer drug docetaxel was encapsulated by the AuNPs by non covalent adsorption. The nanoparticles were characterized by transmission electron microscopy and used for in vitro studies against a hormone-responsive prostate cancer cell line, LnCaP. The loaded nanoparticles reduced the cell viability in more than 50% at concentrations of 6 nM and above after 144 h of treatment. Moreover, observation of prostate cancer cells by optical microscopy showed damage to the cells after exposure to drug-loaded AuNPs while unloaded AuNPs had much less effect.
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Rivera-Gil P, Jimenez De Aberasturi D, Wulf V, Pelaz B, Del Pino P, Zhao Y, De La Fuente JM, Ruiz De Larramendi I, Rojo T, Liang XJ, Parak WJ. The challenge to relate the physicochemical properties of colloidal nanoparticles to their cytotoxicity. Acc Chem Res 2013; 46:743-9. [PMID: 22786674 DOI: 10.1021/ar300039j] [Citation(s) in RCA: 239] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nanomaterials offer opportunities to construct novel compounds for many different fields. Applications include devices for energy, including solar cells, batteries, and fuel cells, and for health, including contrast agents and mediators for photodynamic therapy and hyperthermia. Despite these promising applications, any new class of materials also bears a potential risk for human health and the environment. The advantages and innovations of these materials must be thoroughly compared against risks to evaluate each new nanomaterial. Although nanomaterials are often used intentionally, they can also be released unintentionally either inside the human body, through wearing of a prosthesis or the inhalation of fumes, or into the environment, through mechanical wear or chemical powder waste. This possibility adds to the importance of understanding potential risks from these materials. Because of fundamental differences in nanomaterials, sound risk assessment currently requires that researchers perform toxicology studies on each new nanomaterial. However, if toxicity could be correlated to the basic physicochemical properties of nanomaterials, those relationships could allow researchers to predict potential risks and design nanomaterials with minimum toxicity. In this Account we describe the physicochemical properties of nanoparticles (NPs) and how they can be determined and discuss their general importance for cytotoxicity. For simplicity, we focus primarily on in vitro toxicology that examines the interaction of living cells with engineered colloidal NPs with an inorganic core. Serious risk assessment of NPs will require additional in vivo studies. Basic physicochemical properties of nanoparticulate materials include colloidal stability, purity, inertness, size, shape, charge, and their ability to adsorb environmental compounds such as proteins. Unfortunately, the correlation of these properties with toxicity is not straightforward. First, for NPs released either unintentionally or intentionally, it can be difficult to pinpoint these properties in the materials. Therefore, researchers typically use NP models with better defined properties, which don't include the full complexity of most industrially relevant materials. In addition, many of these properties are strongly mutually connected. Therefore, it can be difficult to vary individual properties in NP models while keeping the others constant.
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Affiliation(s)
- Pilar Rivera-Gil
- Fachbereich Physik and WZMW, Philipps Universität Marburg, Renthof 7, D-35037 Marburg, Germany
| | - Dorleta Jimenez De Aberasturi
- Fachbereich Physik and WZMW, Philipps Universität Marburg, Renthof 7, D-35037 Marburg, Germany
- Department of Inorganic Chemistry, UPV/EHU, Bilbao, Spain
| | - Verena Wulf
- Fachbereich Physik and WZMW, Philipps Universität Marburg, Renthof 7, D-35037 Marburg, Germany
| | - Beatriz Pelaz
- Instituto de Nanociencia de Aragon, Universidad de Zaragoza, Zaragoza, Spain
| | - Pablo Del Pino
- Instituto de Nanociencia de Aragon, Universidad de Zaragoza, Zaragoza, Spain
| | - Yuanyuan Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing, China
| | | | | | - Teófilo Rojo
- Department of Inorganic Chemistry, UPV/EHU, Bilbao, Spain
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing, China
| | - Wolfgang J. Parak
- Fachbereich Physik and WZMW, Philipps Universität Marburg, Renthof 7, D-35037 Marburg, Germany
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del Pino P, Mitchell SG, Pelaz B. Design and characterization of functional nanoparticles for enhanced bio-performance. Methods Mol Biol 2013; 1051:165-207. [PMID: 23934805 DOI: 10.1007/978-1-62703-550-7_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recent years have witnessed the rapid development of inorganic nanomaterials for medical applications. At present, nanomedicines-nanoparticles (NPs) destined for therapy or diagnosis purposes-can be found in a number of medical applications including therapeutics (either self-therapeutics or drug carriers) and diagnosis agents (e.g., contrast agents for imaging or transducers in biosensors). Pushing the limits of nanotechnology towards enhanced nanomedicines will surely help to reduce side effects of traditional treatments and to achieve earlier diagnosis. As for all medical approaches, the ultimate aim of nanomedicine is improving the well-being of patients. However, mixing nanomaterials with biological components such as fluids, living cells, and tissues does not always result as expected. The interplay between engineered nanomaterials and biological components is influenced by complex interactions which make predicting their biological fate and performance a nontrivial issue. Indeed, the structural integrity and the a priori function of nanomaterials can change dramatically due to unwanted nano-bio interactions. For medical applications in particular, any new nanomaterial has to be exhaustively studied when it comes in close contact with biological fluids and living cells or organisms. The motivation is clear: first, many unwanted effects can be turned on unexpectedly (e.g., leakage of toxic ions, ROS production, and sequestration by the phagocytic system) and second, their purpose as therapeutic or diagnostic agent can be lost as they are transferred to the desired working environment. This chapter aims to highlight key factors that should be taken into account when choosing and characterizing such functional materials for a given application, with a view to minimizing unwanted nano-bio interactions, rather than providing an exhaustive compilation of recent work. We hope that both early-stage and experienced researchers will find it valuable for designing nanoparticles for enhanced bio-performance.
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Affiliation(s)
- Pablo del Pino
- Nanotherapy and Nanodiagnostics Group (GN2), Campus Rio Ebro, Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Zaragoza, Spain
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Wu Q, Liu C, Fan L, Shi J, Liu Z, Li R, Sun L. Heparinized magnetic mesoporous silica nanoparticles as multifunctional growth factor delivery carriers. NANOTECHNOLOGY 2012; 23:485703. [PMID: 23128185 DOI: 10.1088/0957-4484/23/48/485703] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Well-defined magnetic mesoporous silica nanoparticles (MMSNs) with a core/shell structure were prepared via a one pot synthesis. Sphere-like magnetite aggregates were obtained as cores of the final nanoparticles by assembly in the presence of polyvinyl pyrrolidone and cetyltrimethylammonium bromide. The nanoparticles have the property of superparamagnetism with a saturation magnetization value of 20.3 emu g(-1). In addition, the combination of heparin and fluorescence-labeled MMSNs endows the resultant particles (denoted as MFMSNs-HP) with magnetism and fluorescence properties, excellent dispersity in the buffer solutions and cell culture media, anticoagulant activity in the blood stream, and the controlled release of basic fibroblast growth factor (bFGF). Furthermore, the bFGF cell viability assays indicate that MFMSNs-HP has nearly no toxicity to human umbilical vein endothelial cells (HUVEC) up to a concentration of 200 μg ml(-1), and the proliferation activity of bFGF incorporated into MFMSNs-HP could be retained for at least 6 days. All of these suggest that MFMSNs-HP may serve as a multifunctional carrier for the delivery of growth factors.
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Affiliation(s)
- Qiang Wu
- College of Pharmacy, Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Institute of Environmental Health, Henan University, Kaifeng, People's Republic of China.
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Matsusaki M, Matsumoto M, Waku T, Akashi M. Self-Assembled Structure of Peptide Nanospheres Induces High Stability against Hydrolysis and Sterilization. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1035-48. [PMID: 20566072 DOI: 10.1163/092050610x497890] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Michiya Matsusaki
- a Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi-shi 332-0012, Japan
| | - Masahiro Matsumoto
- b Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Tomonori Waku
- c Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Department of Bio-molecular Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo, Kyoto 606-8585, Japan
| | - Mitsuru Akashi
- d Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi-shi 332-0012, Japan.
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The improvement of anti-proliferation activity against breast cancer cell line of thioguanine by gold nanoparticles. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0030-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Nanocarriers as Nanomedicines. NANOBIOTECHNOLOGY - INORGANIC NANOPARTICLES VS ORGANIC NANOPARTICLES 2012. [DOI: 10.1016/b978-0-12-415769-9.00014-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Sapsford KE, Tyner KM, Dair BJ, Deschamps JR, Medintz IL. Analyzing nanomaterial bioconjugates: a review of current and emerging purification and characterization techniques. Anal Chem 2011; 83:4453-88. [PMID: 21545140 DOI: 10.1021/ac200853a] [Citation(s) in RCA: 278] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kim E Sapsford
- Division of Biology, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993, USA.
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Stark WJ. Nanoparticles in Biological Systems. Angew Chem Int Ed Engl 2011; 50:1242-58. [DOI: 10.1002/anie.200906684] [Citation(s) in RCA: 429] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 02/23/2010] [Indexed: 12/12/2022]
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Vauthier C, Bouchemal K. Processing and Scale-up of Polymeric Nanoparticles. INTRACELLULAR DELIVERY 2011. [DOI: 10.1007/978-94-007-1248-5_16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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