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Li G, Cao Z, Ho KKHY, Zuo YY. Quantitative Determination of the Hydrophobicity of Nanoparticles. Anal Chem 2022; 94:2078-2086. [PMID: 35029972 DOI: 10.1021/acs.analchem.1c04172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The hydrophobicity of nanoparticles (NPs) is one of the most important physicochemical properties that determines their agglomeration state under various environmental conditions. When studying nano-bio interactions, it is found that the hydrophobicity of NPs plays a predominant role in mediating the biological response and toxicity of the NPs. Although many methods have been developed to qualitatively or quantitatively determine hydrophobicity, there is not yet a scientific consensus on the standard of characterizing the hydrophobicity of NPs. We have developed a novel optical method, called the maximum particle dispersion (MPD), for quantitatively characterizing the hydrophobicity of NPs. The principle of measurement of the MPD method lies in the control of the aggregation state of the NPs via manipulating the van der Waals interactions between NPs across a dispersion liquid. We have scrutinized the mechanism of the MPD method using a combination of dynamic light scattering and atomic force microscopy and further verified the MPD method using a completely independent dye adsorption method. The MPD method demonstrated great promise to be developed into an easy-to-use and cost-effective method for quantitatively characterizing the hydrophobicity of NPs.
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Affiliation(s)
- Guangle Li
- Department of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
| | - Zhenle Cao
- Department of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
| | - Kacie K H Y Ho
- Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
| | - Yi Y Zuo
- Department of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States.,Department of Pediatrics, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii 96826, United States
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2
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Wang J, Xu Y, Meng X, Pu Y, Ragauskas A, Zhang J. Production of xylo-oligosaccharides from poplar by acetic acid pretreatment and its impact on inhibitory effect of poplar lignin. BIORESOURCE TECHNOLOGY 2021; 323:124593. [PMID: 33387707 DOI: 10.1016/j.biortech.2020.124593] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Recently, efficient production of xylo-oligosaccharides (XOS) from poplar by acetic acid (AA) pretreatment was developed; but the effect of residual lignin on subsequent cellulase hydrolysis was unclear. Herein, XOS was produced from poplar by AA pretreatment and the effect of AA pretreatment on lignin inhibition to cellulase hydrolysis was investigated. The results indicated that a high XOS yield of 55.8% was obtained, and the inhibition degree of lignin in poplar increased from 1.0% to 6.8% after AA pretreatment. Lignin was acetylated and its molecular weight decreased from 12,211 to 2871 g/mol after AA pretreatment. The increase of S/G ratio, phenolic hydroxyl, and condensed units of lignin after AA pretreatment might be reasons for this intensified inhibition. The results advanced our understanding of the structural and inhibitory properties of lignin after production of XOS from poplar with AA pretreatment, and provided references for efficient cellulase hydrolysis of poplar after AA pretreatment.
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Affiliation(s)
- Jinye Wang
- College of Forestry, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yong Xu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, China
| | - Xianzhi Meng
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA
| | - Yunqiao Pu
- Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA
| | - Arthur Ragauskas
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA; Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA
| | - Junhua Zhang
- College of Forestry, Northwest A&F University, Yangling 712100, Shaanxi, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, China.
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3
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Tan ZM, Lai GP, Pandey M, Srichana T, Pichika MR, Gorain B, Bhattamishra SK, Choudhury H. Novel Approaches for the Treatment of Pulmonary Tuberculosis. Pharmaceutics 2020; 12:pharmaceutics12121196. [PMID: 33321797 PMCID: PMC7763148 DOI: 10.3390/pharmaceutics12121196] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 12/12/2022] Open
Abstract
Tuberculosis (TB) is a contagious airborne disease caused by Mycobacterium tuberculosis, which primarily affects human lungs. The progression of drug-susceptible TB to drug-resistant strains, MDR-TB and XDR-TB, has become worldwide challenge in eliminating TB. The limitations of conventional TB treatment including frequent dosing and prolonged treatment, which results in patient’s noncompliance to the treatment because of treatment-related adverse effects. The non-invasive pulmonary drug administration provides the advantages of targeted-site delivery and avoids first-pass metabolism, which reduced the dose requirement and systemic adverse effects of the therapeutics. With the modification of the drugs with advanced carriers, the formulations may possess sustained released property, which helps in reducing the dosing frequency and enhanced patients’ compliances. The dry powder inhaler formulation is easy to handle and storage as it is relatively stable compared to liquids and suspension. This review mainly highlights the aerosolization properties of dry powder inhalable formulations with different anti-TB agents to understand and estimate the deposition manner of the drug in the lungs. Moreover, the safety profile of the novel dry powder inhaler formulations has been discussed. The results of the studies demonstrated that dry powder inhaler formulation has the potential in enhancing treatment efficacy.
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Affiliation(s)
- Zhi Ming Tan
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (Z.M.T.); (G.P.L.)
| | - Gui Ping Lai
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (Z.M.T.); (G.P.L.)
| | - Manisha Pandey
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Jalan Jalil Perkasa, Bukit Jalil, Kuala Lumpur 57000, Malaysia
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia;
- Correspondence: (M.P.); (H.C.)
| | - Teerapol Srichana
- Drug Delivery System Excellence Center, Prince of Songkla University, Songkhla 90110, Thailand;
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla 90110, Thailand
| | - Mallikarjuna Rao Pichika
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia;
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Bapi Gorain
- School of Pharmacy, Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya, Selangor 47500, Malaysia;
- Centre for Drug Delivery and Molecular Pharmacology, Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya, Selangor 47500, Malaysia
| | - Subrat Kumar Bhattamishra
- Department of Life Science, School of Pharmacy, International Medical University, Jalan Jalil Perkasa, Bukit Jalil, Kuala Lumpur 57000, Malaysia;
| | - Hira Choudhury
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Jalan Jalil Perkasa, Bukit Jalil, Kuala Lumpur 57000, Malaysia
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia;
- Correspondence: (M.P.); (H.C.)
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4
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Lundqvist M, Cedervall T. Three Decades of Research about the Corona Around Nanoparticles: Lessons Learned and Where to Go Now. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000892. [PMID: 33107223 DOI: 10.1002/smll.202000892] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 09/02/2020] [Indexed: 06/11/2023]
Abstract
The research about how a nanoparticle (NP) interacts with a complex biological solution has been conducted, according to the literature, for almost three decades. A significant amount of data has been generated, especially in the last one and a half decade. First, it became its own research field which was later divided into many subresearch fields. This outlook does not aim to be a comprehensive review of the field or any of its subresearch fields. There is too much data published to attempt that. Instead, here it has been tried to highlight what, in the opinion, is the main step taken during these three decades. Thereafter, the weaknesses and end are pointed out with what needs to be the main focus for the future to understand the protein corona formation in the bloodstream, which is a prerequisite for the developing of true target specific drug-delivering nanoparticles.
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5
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Gruber MM, Hirschmugl B, Berger N, Holter M, Radulović S, Leitinger G, Liesinger L, Berghold A, Roblegg E, Birner-Gruenberger R, Bjelic-Radisic V, Wadsack C. Plasma proteins facilitates placental transfer of polystyrene particles. J Nanobiotechnology 2020; 18:128. [PMID: 32907583 PMCID: PMC7487953 DOI: 10.1186/s12951-020-00676-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/13/2020] [Indexed: 12/15/2022] Open
Abstract
Background Nanoparticles, which are exposed to biological fluids are rapidly interacting with proteins and other biomolecules forming a corona. In addition to dimension, charge and material the distinct protein corona influences the interplay of nanoparticles with tissue barriers. In this study we were focused on the impact of in situ formed human plasma protein corona on the transfer of 80 nm polystyrene nanoparticles (PS-particles) across the human placenta. To study materno-to fetal PS transfer we used the human ex vivo placental perfusion approach, which represents an intact and physiological tissue barrier. To analyze the protein corona of PS particles we performed shotgun proteomics of isolated nanoparticles before and after tissue exposure. Results Human plasma incubated with PS-particles of 80 nm and subsequent formed protein corona enhanced the transfer across the human placenta compared to PS-corona formed by bovine serum albumin and dextran which served as a control. Quantitative and qualitative changes of plasma proteins determined the changes in PS transfer across the barrier. Based on the analysis of the PS-proteome two candidate proteins, namely human albumin and immunoglobulin G were tested if these proteins may account for the enhanced PS-transfer across the placenta. Interestingly, the protein corona formed by human albumin significantly induced the transfer of PS-particles across the tissue compared to the formed IgG-corona. Conclusion In total we demonstrate the PS corona dynamically and significantly evolves upon crossing the human placenta. Thus, the initial composition of PS particles in the maternal circulation is not predictive for their transfer characteristics and performance once beyond the barrier of the placenta. The precise mechanism of these effects remains to be elucidated but highlights the importance of using well designed biological models when testing nanoparticles for biomedical applications.![]()
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Affiliation(s)
- Michael M Gruber
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Birgit Hirschmugl
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria.,BioTechMed-Graz, Mozartgasse 12/II, 8010, Graz, Austria
| | - Natascha Berger
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Magdalena Holter
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Auenbruggerplatz 2, 8036, Graz, Austria
| | - Snježana Radulović
- Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/VI, 8010, Graz, Austria.,Research Unit Electron Microscopic Techniques, Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/II, 8010, Graz, Austria
| | - Gerd Leitinger
- Research Unit Electron Microscopic Techniques, Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/II, 8010, Graz, Austria
| | - Laura Liesinger
- Diagnostic and Research Institute of Pathology, Diagnostic and Research Center for Molecular BioMedicine, Medical University of Graz, Stiftingtalstrasse 6, 8010, Graz, Austria.,Omics Center Graz, BioTechMed-Graz, Stiftingtalstrasse 24, 8010, Graz, Austria
| | - Andrea Berghold
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Auenbruggerplatz 2, 8036, Graz, Austria
| | - Eva Roblegg
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Graz, Universitätsplatz 1/EG, 8010, Graz, Austria
| | - Ruth Birner-Gruenberger
- Diagnostic and Research Institute of Pathology, Diagnostic and Research Center for Molecular BioMedicine, Medical University of Graz, Stiftingtalstrasse 6, 8010, Graz, Austria.,Omics Center Graz, BioTechMed-Graz, Stiftingtalstrasse 24, 8010, Graz, Austria.,Institute of Chemical Technologies and Analytics, Faculty of Technical Chemistry, Vienna University of Technology-TU Wien, Getreidemarkt 9/164, 1060, Vienna, Austria
| | - Vesna Bjelic-Radisic
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria
| | - Christian Wadsack
- Department of Obstetrics and Gynecology, Medical University of Graz, Auenbruggerplatz 14, 8036, Graz, Austria. .,BioTechMed-Graz, Mozartgasse 12/II, 8010, Graz, Austria.
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6
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Song Y, Chandra RP, Zhang X, Saddler JN. Non-productive celluase binding onto deep eutectic solvent (DES) extracted lignin from willow and corn stover with inhibitory effects on enzymatic hydrolysis of cellulose. Carbohydr Polym 2020; 250:116956. [PMID: 33049860 DOI: 10.1016/j.carbpol.2020.116956] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/31/2020] [Accepted: 08/13/2020] [Indexed: 10/23/2022]
Abstract
In this work, deep eutectic solvent (DES) was prepared by mixing choline chloride (ChCl) with lactic acid (LA), and effects of cellulase non-productive binding onto DES-extracted lignin from willow and corn stover on enzymatic hydrolysis of cellulose was investigated. The correlation between hydrolysis yield of cellulose and chemical features of lignin was evaluated, and a potential inhibitory mechanism was proposed. Condensation of lignin was observed during DES treatment, and these condensed aromatic structures had an increased tendency to adsorb enzymes through hydrophobic interactions. As well as hydrophobic interactions mediated by lignin condensation, an increase in phenolic hydroxyl groups resulted in a greater amount of hydrogen bonds between cellulases and lignin that appeared to inhibit enzymatic hydrolysis yields of cellulose (39.96-42.86 % to 31.96-32.68 %). Although large amounts of COOHs were generated, the elevated electrostatic repulsion as a result of ionic groups was insufficient to decrease non-productive adsorption.
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Affiliation(s)
- Yanliang Song
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China; Forest Products Biotechnology/Bioenergy Group, Department of Wood Science, Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Richard P Chandra
- Forest Products Biotechnology/Bioenergy Group, Department of Wood Science, Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Xu Zhang
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Jack N Saddler
- Forest Products Biotechnology/Bioenergy Group, Department of Wood Science, Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
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7
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Rahmatika AM, Goi Y, Kitamura T, Morita Y, Iskandar F, Ogi T. Silica-supported carboxylated cellulose nanofibers for effective lysozyme adsorption: Effect of macropore size. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.05.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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8
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Qiao R, Fu C, Li Y, Qi X, Ni D, Nandakumar A, Siddiqui G, Wang H, Zhang Z, Wu T, Zhong J, Tang S, Pan S, Zhang C, Whittaker MR, Engle JW, Creek DJ, Caruso F, Ke PC, Cai W, Whittaker AK, Davis TP. Sulfoxide-Containing Polymer-Coated Nanoparticles Demonstrate Minimal Protein Fouling and Improved Blood Circulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000406. [PMID: 32670765 PMCID: PMC7341081 DOI: 10.1002/advs.202000406] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/19/2020] [Indexed: 05/15/2023]
Abstract
Minimizing the interaction of nanomedicines with the mononuclear phagocytic system (MPS) is a critical challenge for their clinical translation. Conjugating polyethylene glycol (PEG) to nanomedicines is regarded as an effective approach to reducing the sequestration of nanomedicines by the MPS. However, recent concerns about the immunogenicity of PEG highlight the demand of alternative low-fouling polymers as innovative coating materials for nanoparticles. Herein, a highly hydrophilic sulfoxide-containing polymer-poly(2-(methylsulfinyl)ethyl acrylate) (PMSEA)-is used for the surface coating of iron oxide nanoparticles (IONPs). It is found that the PMSEA polymer coated IONPs have a more hydrophilic surface than their PEGylated counterparts, and demonstrate remarkably reduced macrophage cellular uptake and much less association with human plasma proteins. In vivo study of biodistribution and pharmacokinetics further reveals a much-extended blood circulation (≈2.5 times longer in terms of elimination half-life t 1/2) and reduced accumulation (approximately two times less) in the organs such as the liver and spleen for IONPs coated by PMSEA than those by PEG. It is envisaged that the highly hydrophilic sulfoxide-containing polymers have huge potential to be employed as an advantageous alternative to PEG for the surface functionalization of a variety of nanoparticles for long circulation and improved delivery.
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Affiliation(s)
- Ruirui Qiao
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQLD4072Australia
- ARC Centre of Excellence in Convergent Bio‐Nano Science and TechnologyMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Changkui Fu
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQLD4072Australia
| | - Yuhuan Li
- ARC Centre of Excellence in Convergent Bio‐Nano Science and TechnologyMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Xiaole Qi
- Key Laboratory of Modern Chinese MedicinesChina Pharmaceutical UniversityNanjing210009China
| | - Dalong Ni
- Departments of Radiology and Medical PhysicsUniversity of Wisconsin – MadisonMadisonWI53705USA
| | - Aparna Nandakumar
- ARC Centre of Excellence in Convergent Bio‐Nano Science and TechnologyMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Ghizal Siddiqui
- Monash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Haiyan Wang
- Institute for HepatologyNational Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalGuangdong ProvinceShenzhen518112China
| | - Zheng Zhang
- Institute for HepatologyNational Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalGuangdong ProvinceShenzhen518112China
| | - Tingting Wu
- College of Food Science & TechnologyShanghai Ocean UniversityShanghai201306China
| | - Jian Zhong
- College of Food Science & TechnologyShanghai Ocean UniversityShanghai201306China
| | - Shi‐Yang Tang
- Department of ElectronicElectrical and Systems EngineeringSchool of EngineeringUniversity of BirminghamEdgbastonBirminghamB15 2TTUK
| | - Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technologyand the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Cheng Zhang
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQLD4072Australia
| | - Michael R. Whittaker
- ARC Centre of Excellence in Convergent Bio‐Nano Science and TechnologyMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Jonathan W. Engle
- Departments of Radiology and Medical PhysicsUniversity of Wisconsin – MadisonMadisonWI53705USA
| | - Darren J. Creek
- Monash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technologyand the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Pu Chun Ke
- ARC Centre of Excellence in Convergent Bio‐Nano Science and TechnologyMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Weibo Cai
- Departments of Radiology and Medical PhysicsUniversity of Wisconsin – MadisonMadisonWI53705USA
| | - Andrew K. Whittaker
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQLD4072Australia
| | - Thomas P. Davis
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQLD4072Australia
- ARC Centre of Excellence in Convergent Bio‐Nano Science and TechnologyMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
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Crandon LE, Boenisch KM, Harper BJ, Harper SL. Adaptive methodology to determine hydrophobicity of nanomaterials in situ. PLoS One 2020; 15:e0233844. [PMID: 32492068 PMCID: PMC7269256 DOI: 10.1371/journal.pone.0233844] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 05/13/2020] [Indexed: 12/13/2022] Open
Abstract
The hydrophobicity of nanoparticles (NPs) is a key property determining environmental fate, biological partitioning and toxicity. However, methods to characterize surface hydrophobicity are not uniformly applied to NPs and cannot quantify surface changes in complex environments. Existing methods designed to evaluate the hydrophobicity of bulk solids, chemicals, and proteins have significant limitations when applied to NPs. In this study, we modified and evaluated two methods to determine the hydrophobicity of NPs, hydrophobic interaction chromatography (HIC) and dye adsorption, and compared them to the standard octanol-water partitioning protocol for chemicals. Gold, copper oxide, silica, and amine-functionalized silica NPs were used to evaluate methods based on their applicability to NPs that agglomerate and have surface coatings. The octanol water partitioning and HIC methods both measured Au NPs as hydrophilic, but despite having a small size and stable suspension, NPs could not be fully recovered from the HIC column. For the dye adsorption method, hydrophobic (Rose Bengal) and hydrophilic (Nile Blue) dyes were adsorbed to the NP surface, and linear isotherm parameters were used as a metric for hydrophobicity. CuO was determined to be slightly hydrophilic, while SiO2 was hydrophilic and Ami-SiO2 was hydrophobic. The advantages and limitations of each method are discussed, and the dye adsorption method is recommended as the most suitable for application across broad classes of nanomaterials. The dye assay method was further used to measure changes in the surface hydrophobicity of TiO2 NPs after being suspended in natural water collected from the Alsea Rivers watershed in Oregon. TiO2 NPs adsorbed Rose Bengal when suspended in ultrapure water, but adsorbed Nile Blue after being incubated in natural water samples, demonstrating a shift from hydrophobic to hydrophilic properties on the outer surface. The dye adsorption method can be applied to characterize surface hydrophobicity of NPs and quantify environmental transformations, potentially improving environmental fate models.
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Affiliation(s)
- Lauren E Crandon
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon, United States of America
| | - Kylie M Boenisch
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon, United States of America
| | - Bryan J Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, United States of America
| | - Stacey L Harper
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon, United States of America.,Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, United States of America.,Oregon Nanoscience and Microtechnologies Institute, Corvallis, Oregon, United States of America
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10
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Maghrebi S, Jambhrunkar M, Joyce P, Prestidge CA. Engineering PLGA–Lipid Hybrid Microparticles for Enhanced Macrophage Uptake. ACS APPLIED BIO MATERIALS 2020; 3:4159-4167. [DOI: 10.1021/acsabm.0c00251] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Sajedeh Maghrebi
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Manasi Jambhrunkar
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Paul Joyce
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Clive A. Prestidge
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, South Australia 5000, Australia
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11
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Unveiling the pitfalls of the protein corona of polymeric drug nanocarriers. Drug Deliv Transl Res 2020; 10:730-750. [DOI: 10.1007/s13346-020-00745-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Cao Z, Tsai SN, Zuo YY. An Optical Method for Quantitatively Determining the Surface Free Energy of Micro- and Nanoparticles. Anal Chem 2019; 91:12819-12826. [PMID: 31518113 DOI: 10.1021/acs.analchem.9b02507] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Surface free energy (SFE) of micro- and nanoparticles plays a crucial role in determining the hydrophobicity and wettability of the particles. To date, however, there are no easy-to-use methods for determining the SFE of particles. Here, with the application of several inexpensive, easy-to-use, and commonly available lab procedures and facilities, including particle dispersion, settling/centrifugation, pipetting, and visible-light spectroscopy, we developed a novel technique called the maximum particle dispersion (MPD) method for quantitatively determining the SFE of micro- and nanoparticles. We demonstrated the versatility and robustness of the MPD method by studying nine representative particles of various chemistries, sizes, dimensions, and morphologies. These are triethoxycaprylylsilane-coated zinc oxide nanoparticles, multiwalled carbon nanotubes, graphene nanoplatelets, molybdenum(IV) sulfide flakes, neodymium(III) oxide nanoparticles, two sizes of zeolites, poly(vinylpolypyrrolidone), and polystyrene microparticles. The SFE of these micro- and nanoparticles was found to cover a range from 21 to 36 mJ/m2. These SFE values may find applications in a broad spectrum of scientific disciplines including the synthesis of these nanomaterials, such as in liquid-phase exfoliation. The MPD method has the potential to be developed into a standard, low-cost, and easy-to-use method for quantitatively characterizing the SFE and hydrophobicity of particles at the micro- and nanoscale.
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Affiliation(s)
- Zhenle Cao
- Department of Mechanical Engineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States
| | - Shannon Nicole Tsai
- Department of Mechanical Engineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States
| | - Yi Y Zuo
- Department of Mechanical Engineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States.,Department of Pediatrics, John A. Burns School of Medicine , University of Hawaii , Honolulu , Hawaii 96826 , United States
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13
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Haryadi BM, Hafner D, Amin I, Schubel R, Jordan R, Winter G, Engert J. Nonspherical Nanoparticle Shape Stability Is Affected by Complex Manufacturing Aspects: Its Implications for Drug Delivery and Targeting. Adv Healthc Mater 2019; 8:e1900352. [PMID: 31410996 DOI: 10.1002/adhm.201900352] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/05/2019] [Indexed: 02/04/2023]
Abstract
The shape of nanoparticles is known recently as an important design parameter influencing considerably the fate of nanoparticles with and in biological systems. Several manufacturing techniques to generate nonspherical nanoparticles as well as studies on in vitro and in vivo effects thereof have been described. However, nonspherical nanoparticle shape stability in physiological-related conditions and the impact of formulation parameters on nonspherical nanoparticle resistance still need to be investigated. To address these issues, different nanoparticle fabrication methods using biodegradable polymers are explored to produce nonspherical nanoparticles via the prevailing film-stretching method. In addition, systematic comparisons to other nanoparticle systems prepared by different manufacturing techniques and less biodegradable materials (but still commonly utilized for drug delivery and targeting) are conducted. The study evinces that the strong interplay from multiple nanoparticle properties (i.e., internal structure, Young's modulus, surface roughness, liquefaction temperature [glass transition (Tg ) or melting (Tm )], porosity, and surface hydrophobicity) is present. It is not possible to predict the nonsphericity longevity by merely one or two factor(s). The most influential features in preserving the nonsphericity of nanoparticles are existence of internal structure and low surface hydrophobicity (i.e., surface-free energy (SFE) > ≈55 mN m-1 , material-water interfacial tension <6 mN m-1 ), especially if the nanoparticles are soft (<1 GPa), rough (Rrms > 10 nm), porous (>1 m2 g-1 ), and in possession of low bulk liquefaction temperature (<100 °C). Interestingly, low surface hydrophobicity of nanoparticles can be obtained indirectly by the significant presence of residual stabilizers. Therefore, it is strongly suggested that nonsphericity of particle systems is highly dependent on surface chemistry but cannot be appraised separately from other factors. These results and reviews allot valuable guidelines for the design and manufacturing of nonspherical nanoparticles having adequate shape stability, thereby appropriate with their usage purposes. Furthermore, they can assist in understanding and explaining the possible mechanisms of nonspherical nanoparticles effectivity loss and distinctive material behavior at the nanoscale.
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Affiliation(s)
- Bernard Manuel Haryadi
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
| | - Daniel Hafner
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Ihsan Amin
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Rene Schubel
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Rainer Jordan
- Department of ChemistryDresden University of Technology Mommsenstraße 4 01069 Dresden Germany
| | - Gerhard Winter
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
| | - Julia Engert
- Pharmaceutical Technology and BiopharmaceuticsDepartment of PharmacyLudwig‐Maximilians‐Universität München Butenandtstraße 5 81377 Munich Germany
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14
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Takada M, Chandra RP, Saddler JN. The influence of lignin migration and relocation during steam pretreatment on the enzymatic hydrolysis of softwood and corn stover biomass substrates. Biotechnol Bioeng 2019; 116:2864-2873. [DOI: 10.1002/bit.27137] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/23/2019] [Accepted: 08/04/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Masatsugu Takada
- Forest Products Biotechnology/Bioenergy Group, Department of Wood Science, Faculty of ForestryUniversity of British Columbia Vancouver BC Canada
| | - Richard P. Chandra
- Forest Products Biotechnology/Bioenergy Group, Department of Wood Science, Faculty of ForestryUniversity of British Columbia Vancouver BC Canada
| | - John N. Saddler
- Forest Products Biotechnology/Bioenergy Group, Department of Wood Science, Faculty of ForestryUniversity of British Columbia Vancouver BC Canada
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15
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Urbaniak T, Machová D, Janoušková O, Musiał W. Microparticles of Lamivudine-Poly-ε-Caprolactone Conjugate for Drug Delivery via Internalization by Macrophages. Molecules 2019; 24:E723. [PMID: 30781578 PMCID: PMC6413034 DOI: 10.3390/molecules24040723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/12/2019] [Accepted: 02/13/2019] [Indexed: 11/16/2022] Open
Abstract
The past decade may be considered as revolutionary in the research field focused on the physiological function of macrophages. Unknown subtypes of these cells involved in pathological mechanisms were described recently, and they are considered as potential drug delivery targets. The innate ability to internalize foreign bodies exhibited by macrophages can be employed as a therapeutic strategy. The efficiency of this uptake depends on the size, shape and surface physiochemical properties of the phagocyted objects. Here, we propose a method of preparation and preliminary evaluation of drug-polymer conjugate-based microspheres for macrophage targeted drug delivery. The aim of the study was to identify crucial uptake-enhancing parameters for solid, surface modified particles. A model drug molecule-lamivudine-was conjugated with poly-ε-caprolactone via ring opening polymerization. The conjugate was utilized in a solvent evaporation method technique to form solid particles. Interactions between particles and a model rat alveolar cell line were evaluated by flow cytometry. The polymerization product was characterized by a molecular weight of 3.8 kDa. The surface of the obtained solid drug-loaded cores of a hydrodynamic diameter equal to 2.4 µm was modified with biocompatible polyelectrolytes via a layer-by-layer assembly method. Differences in the internalization efficiency of four particle batches by the model RAW 264.7 cell line suggest that particle diameter and surface hydrophobicity are the most influential parameters in terms of phagocytic uptake.
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Affiliation(s)
- Tomasz Urbaniak
- Department of Physical Chemistry, Pharmaceutical Faculty, Wroclaw Medical University, Borowska 211, Wroclaw 50-556, Poland.
| | - Daniela Machová
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Witold Musiał
- Department of Physical Chemistry, Pharmaceutical Faculty, Wroclaw Medical University, Borowska 211, Wroclaw 50-556, Poland.
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16
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Trindade IC, Pound-Lana G, Pereira DGS, de Oliveira LAM, Andrade MS, Vilela JMC, Postacchini BB, Mosqueira VCF. Mechanisms of interaction of biodegradable polyester nanocapsules with non-phagocytic cells. Eur J Pharm Sci 2018; 124:89-104. [DOI: 10.1016/j.ejps.2018.08.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/10/2018] [Accepted: 08/18/2018] [Indexed: 12/19/2022]
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17
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Mészáros T, Kozma GT, Shimizu T, Miyahara K, Turjeman K, Ishida T, Barenholz Y, Urbanics R, Szebeni J. Involvement of complement activation in the pulmonary vasoactivity of polystyrene nanoparticles in pigs: unique surface properties underlying alternative pathway activation and instant opsonization. Int J Nanomedicine 2018; 13:6345-6357. [PMID: 30349254 PMCID: PMC6187999 DOI: 10.2147/ijn.s161369] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background It has been proposed that many hypersensitivity reactions to nanopharmaceuticals represent complement (C)-activation-related pseudoallergy (CARPA), and that pigs provide a sensitive animal model to study the phenomenon. However, a recent study suggested that pulmonary hypertension, the pivotal symptom of porcine CARPA, is not mediated by C in cases of polystyrene nanoparticle (PS-NP)-induced reactions. Goals To characterize PS-NPs and reexamine the contribution of CARPA to their pulmonary reactivity in pigs. Study design C activation by 200, 500, and 750 nm (diameter) PS-NPs and their opsonization were measured in human and pig sera, respectively, and correlated with hemodynamic effects of the same NPs in pigs in vivo. Methods Physicochemical characterization of PS-NPs included size, ζ-potential, cryo-transmission electron microscopy, and hydrophobicity analyses. C activation in human serum was measured by ELISA and opsonization of PS-NPs in pig serum by Western blot and flow cytometry. Pulmonary vasoactivity of PS-NPs was quantified in the porcine CARPA model. Results PS-NPs are monodisperse, highly hydrophobic spheres with strong negative surface charge. In human serum, they caused size-dependent, significant rises in C3a, Bb, and sC5b-9, but not C4d. Exposure to pig serum led within minutes to deposition of C5b-9 and opsonic iC3b on the NPs, and opsonic iC3b fragments (C3dg, C3d) also appeared in serum. PS-NPs caused major hemodynamic changes in pigs, primarily pulmonary hypertension, on the same time scale (minutes) as iC3b fragmentation and opsonization proceeded. There was significant correlation between C activation by different PS-NPs in human serum and pulmonary hypertension in pigs. Conclusion PS-NPs have extreme surface properties with no relevance to clinically used nanomedicines. They can activate C via the alternative pathway, entailing instantaneous opsonization of NPs in pig serum. Therefore, rather than being solely C-independent reactivity, the mechanism of PS-NP-induced hypersensitivity in pigs may involve C activation. These data are consistent with the “double-hit” concept of nanoparticle-induced hypersensitivity reactions involving both CARPA and C-independent pseudoallergy.
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Affiliation(s)
- Tamás Mészáros
- Nanomedicine Research and Education Center, Department of Pathophysiology, Semmelweis University, Budapest, Hungary, .,SeroScience Ltd, Budapest, Hungary,
| | | | - Taro Shimizu
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Koga Miyahara
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Keren Turjeman
- Laboratory of Membrane and Liposome Research, Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Tatsuhiro Ishida
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Yechezkel Barenholz
- Laboratory of Membrane and Liposome Research, Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Rudolf Urbanics
- Nanomedicine Research and Education Center, Department of Pathophysiology, Semmelweis University, Budapest, Hungary, .,SeroScience Ltd, Budapest, Hungary,
| | - János Szebeni
- Nanomedicine Research and Education Center, Department of Pathophysiology, Semmelweis University, Budapest, Hungary, .,SeroScience Ltd, Budapest, Hungary, .,Department of Nanobiotechnology and Regenerative Medicine, Faculty of Health, Miskolc University, Miskolc, Hungary,
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18
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Yang Y, Xu L, Dekkers S, Zhang LG, Cassee FR, Zuo YY. Aggregation State of Metal-Based Nanomaterials at the Pulmonary Surfactant Film Determines Biophysical Inhibition. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:8920-8929. [PMID: 30011188 DOI: 10.1021/acs.est.8b02976] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Metal-based nanomaterials (MNMs) represent a large category of the engineered nanomaterials, and have been extensively used to enhance the electrical, optical, and magnetic properties of nanoenabled consumer products. Inhaled MNMs can penetrate deeply into the peripheral lung at which they first interact with the pulmonary surfactant (PS) lining of alveoli. Here we studied the biophysical inhibitory potential of representative MNMs on a modified natural PS, Infasurf, using a novel in vitro experimental methodology called the constrained drop surfactometry (CDS). It was found that the biophysical inhibitory potential of six MNMs on Infasurf ranks in the order CeO2 > ZnO > TiO2 > Ag > Fe3O4 > ZrO2-CeO2. This rank of in vitro biophysical inhibition is in general agreement with the in vitro and in vivo toxicity of these MNMs. Directly imaging the lateral structure and molecular conformation of the PS film using atomic force microscopy revealed that there exists a correlation between biophysical inhibition of the PS film by the MNMs and their aggregation state at the PS film. Taken together, our study suggests that the nano-bio interactions at the PS film are determined by multiple physicochemical properties of the MNMs, including not only well-studied properties such as their chemical composition and particle size, but also properties such as hydrophobicity, dissolution rate, and aggregation state at the PS film found here. Our study provides novel insight into the understanding of nanotoxicology and metallomics of MNMs.
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Affiliation(s)
- Yi Yang
- Department of Mechanical Engineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States
| | - Lu Xu
- Department of Mechanical Engineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States
| | - Susan Dekkers
- National Institute for Public Health and the Environment , 3720 BA , Bilthoven , The Netherlands
| | - Lijie Grace Zhang
- Departments of Mechanical and Aerospace Engineering, Biomedical Engineering, and Medicine , The George Washington University , Washington , D.C. 20052 , United States
| | - Flemming R Cassee
- National Institute for Public Health and the Environment , 3720 BA , Bilthoven , The Netherlands
- Institute of Risk Assessment Sciences , Utrecht University , 3508 TD , Utrecht , The Netherlands
| | - Yi Y Zuo
- Department of Mechanical Engineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States
- Department of Pediatrics, John A. Burns School of Medicine , University of Hawaii , Honolulu , Hawaii 96826 , United States
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19
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Konduru NV, Damiani F, Stoilova-McPhie S, Tresback JS, Pyrgiotakis G, Donaghey TC, Demokritou P, Brain JD, Molina RM. Nanoparticle Wettability Influences Nanoparticle-Phospholipid Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6454-6461. [PMID: 29754486 PMCID: PMC6507429 DOI: 10.1021/acs.langmuir.7b03741] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We explored the influence of nanoparticle (NP) surface charge and hydrophobicity on NP-biomolecule interactions by measuring the composition of adsorbed phospholipids on four NPs, namely, positively charged CeO2 and ZnO and negatively charged BaSO4 and silica-coated CeO2, after exposure to bronchoalveolar lavage fluid (BALf) obtained from rats, and to a mixture of neutral dipalmitoyl phosphatidylcholine (DPPC) and negatively charged dipalmitoyl phosphatidic acid (DPPA). The resulting NP-lipid interactions were examined by cryogenic transmission electron microscopy (cryo-TEM) and atomic force microscopy (AFM). Our data show that the amount of adsorbed lipids on NPs after incubation in BALf and the DPPC/DPPA mixture was higher in CeO2 than in the other NPs, qualitatively consistent with their relative hydrophobicity. The relative concentrations of specific adsorbed phospholipids on NP surfaces were different from their relative concentrations in the BALf. Sphingomyelin was not detected in the extracted lipids from the NPs despite its >20% concentration in the BALf. AFM showed that the more hydrophobic CeO2 NPs tended to be located inside lipid vesicles, whereas less hydrophobic BaSO4 NPs appeared to be outside. In addition, cryo-TEM analysis showed that CeO2 NPs were associated with the formation of multilamellar lipid bilayers, whereas BaSO4 NPs with unilamellar lipid bilayers. These data suggest that the NP surface hydrophobicity predominantly controls the amounts and types of lipids adsorbed, as well as the nature of their interaction with phospholipids.
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Affiliation(s)
- Nagarjun V. Konduru
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Flavia Damiani
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Svetla Stoilova-McPhie
- Center for Nanoscale Systems, Faculty of Art and Sciences, Harvard University, 11 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Jason S. Tresback
- Center for Nanoscale Systems, Faculty of Art and Sciences, Harvard University, 11 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Georgios Pyrgiotakis
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Thomas C. Donaghey
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Philip Demokritou
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Joseph D. Brain
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Ramon M. Molina
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, United States
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20
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Teruya K, Oguma A, Nishizawa K, Kamitakahara H, Doh-ura K. Pyrene conjugation and spectroscopic analysis of hydroxypropyl methylcellulose compounds successfully demonstrated a local dielectric difference associated with in vivo anti-prion activity. PLoS One 2017; 12:e0185357. [PMID: 28934337 PMCID: PMC5608368 DOI: 10.1371/journal.pone.0185357] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 09/11/2017] [Indexed: 11/18/2022] Open
Abstract
Our previous study on prion-infected rodents revealed that hydroxypropyl methylcellulose compounds (HPMCs) with different molecular weights but similar composition and degree of substitution have different levels of long-lasting anti-prion activity. In this study, we searched these HPMCs for a parameter specifically associated with in vivo anti-prion activity by analyzing in vitro chemical properties and in vivo tissue distributions. Infrared spectroscopic and thermal analyses revealed no differences among HPMCs, whereas pyrene conjugation and spectroscopic analysis revealed that the fluorescence intensity ratio of peak III/peak I correlated with anti-prion activity. This correlation was more clearly demonstrated in the anti-prion activity of the 1-year pre-infection treatment than that of the immediate post-infection treatment. In addition, the intensity ratio of peak III/peak I negatively correlated with the macrophage uptake level of HPMCs in our previous study. However, the in vivo distribution pattern was apparently not associated with anti-prion activity and was different in the representative tissues. These findings suggest that pyrene conjugation and spectroscopic analysis are powerful methods to successfully demonstrate local dielectric differences in HPMCs and provide a feasible parameter denoting the long-lasting anti-prion activity of HPMCs in vivo.
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Affiliation(s)
- Kenta Teruya
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ayumi Oguma
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Keiko Nishizawa
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiroshi Kamitakahara
- Division of Forest and Biomaterials Science, Kyoto University Graduate School of Agriculture, Kyoto, Kyoto, Japan
| | - Katsumi Doh-ura
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- * E-mail:
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21
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Huang Y, Sun S, Huang C, Yong Q, Elder T, Tu M. Stimulation and inhibition of enzymatic hydrolysis by organosolv lignins as determined by zeta potential and hydrophobicity. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:162. [PMID: 28652863 PMCID: PMC5483266 DOI: 10.1186/s13068-017-0853-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 06/16/2017] [Indexed: 05/24/2023]
Abstract
BACKGROUND Lignin typically inhibits enzymatic hydrolysis of cellulosic biomass, but certain organosolv lignins or lignosulfonates enhance enzymatic hydrolysis. The hydrophobic and electrostatic interactions between lignin and cellulases play critical roles in the enzymatic hydrolysis process. However, how to incorporate these two interactions into the consideration of lignin effects has not been investigated. RESULTS We examined the physicochemical properties and the structures of ethanol organosolv lignins (EOL) from hardwood and softwood and ascertained the association between lignin properties and their inhibitory and stimulatory effects on enzymatic hydrolysis. The zeta potential and hydrophobicity of EOL lignin samples, isolated from organosolv pretreatment of cottonwood (CW), black willow (BW), aspen (AS), eucalyptus (EH), and loblolly pine (LP), were determined and correlated with their effects on enzymatic hydrolysis of Avicel. EOLs from CW, BW, and AS improved the 72 h hydrolysis yield by 8-12%, while EOLs from EH and LP decreased the 72 h hydrolysis yield by 6 and 16%, respectively. The results showed a strong correlation between the 72 h hydrolysis yield with hydrophobicity and zeta potential. The correlation indicated that the hydrophobicity of EOL had a negative effect and the negative zeta potential of EOL had a positive effect. HSQC NMR spectra showed that β-O-4 linkages in lignin react with ethanol to form an α-ethoxylated β-O-4' substructure (A') during organosolv pretreatment. Considerable amounts of C2,6-H2,6 correlation in p-hydroxybenzoate (PB) units were observed for EOL-CW, EOL-BW, and EOL-AS, but not for EOL-EH and EOL-LP. CONCLUSIONS This study revealed that the effect of lignin on enzymatic hydrolysis is a function of both hydrophobic interactions and electrostatic repulsions. The lignin inhibition is controlled by lignin hydrophobicity and the lignin stimulation is governed by the negative zeta potential. The net effect of lignin depends on the combined influence of hydrophobicity and zeta potential. This study has potential implications in biomass pretreatment for the reduction of lignin inhibition by increasing lignin negative zeta potential and decreasing hydrophobicity.
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Affiliation(s)
- Yang Huang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 China
| | - Shaolong Sun
- Department of Biomedical, Chemical and Environmental Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221 USA
| | - Chen Huang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 China
| | - Qiang Yong
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 China
| | - Thomas Elder
- USDA-Forest Service, Southern Research Station, 521 Devall Drive, Auburn, AL 36849 USA
| | - Maobing Tu
- Department of Biomedical, Chemical and Environmental Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221 USA
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22
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Nguyen VH, Lee BJ. Synthetic optimization of gelatin-oleic conjugate and aqueous-based formation of self-assembled nanoparticles without cross-linkers. Macromol Res 2017. [DOI: 10.1007/s13233-017-5056-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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23
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Lu K, Dong S, Petersen EJ, Niu J, Chang X, Wang P, Lin S, Gao S, Mao L. Biological Uptake, Distribution, and Depuration of Radio-Labeled Graphene in Adult Zebrafish: Effects of Graphene Size and Natural Organic Matter. ACS NANO 2017; 11:2872-2885. [PMID: 28240869 PMCID: PMC5552169 DOI: 10.1021/acsnano.6b07982] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The exciting commercial application potential of graphene materials may inevitably lead to their increasing release into the environment where they may pose ecological risks. This study focused on using carbon-14-labeled few-layer graphene (FLG) to determine whether the size of graphene plays a role in its uptake, depuration, and biodistribution in adult zebrafish. After 48 h exposure to larger FLG (L-FLG) at 250 μg/L, the amount of graphene in the organism was close to 48 mg/kg fish dry mass, which was more than 170-fold greater than the body burden of those exposed to the same concentration of smaller FLG (S-FLG). The amount of uptake for both L-FLG and S-FLG increased by a factor of 2.5 and 16, respectively, when natural organic matter (NOM) was added in the exposure suspension. While the L-FLG mainly accumulated in the gut of adult zebrafish, the S-FLG was found in both the gut and liver after exposure with or without NOM. Strikingly, the S-FLG was able to pass through the intestinal wall and enter the intestinal epithelial cells and blood. The presence of NOM increased the quantity of S-FLG in these cells. Exposure to L-FLG or S-FLG also had a significantly different impact on the intestinal microbial community structure.
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Affiliation(s)
- Kun Lu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
| | - Shipeng Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
| | - Elijah J. Petersen
- Material Measurement Laboratory, Biosystems and Biomaterials Division, National Institute of Standards and Technology, 100 Bureau Drive, Stop 8311, Gaithersburg, MD 20899-0001, United States
| | - Junfeng Niu
- Beijing Normal University, School of Environment, State Key Lab Water Environmental Simulation, Beijing 100875, China
| | - Xiaofeng Chang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Peng Wang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Sijie Lin
- College Environmental Science & Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
| | - Liang Mao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
- Corresponding Author:
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Kalaycioglu GD, Aydogan N. Preparation and investigation of solid lipid nanoparticles for drug delivery. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.06.034] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mahaling B, Katti DS. Physicochemical properties of core-shell type nanoparticles govern their spatiotemporal biodistribution in the eye. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2016; 12:2149-2160. [PMID: 27288669 DOI: 10.1016/j.nano.2016.05.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 04/12/2016] [Accepted: 05/26/2016] [Indexed: 01/30/2023]
Abstract
Due to the inherent barrier properties of eye tissues, a major challenge in treating eye diseases is to provide a therapeutic agent to the desired tissue in quantities and durations that are favorable. This study aimed at understanding the influence of physicochemical properties of nanoparticles on their spatiotemporal biodistribution in mouse eye. For this, core-shell nanoparticles with different properties were designed by varying either core or shell and administered as eye-drops to mice. The results demonstrated that all nanoparticles irrespective of type of core or shell followed the conjunctival-scleral pathway. The bioavailability of cores followed the order polylactide-co-glycolide≥polylactide≥polycaprolactone for all tissues and time-points. The bioavailability for all shell types was greater in conjunctiva, sclera, choroid and retina when compared to other eye tissues. Therefore, modulating physicochemical properties of nanoparticles can be used as a design strategy to devise drug carriers that target specific tissues of the eye.
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Affiliation(s)
- Binapani Mahaling
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Dhirendra S Katti
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India.
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Parumasivam T, Leung SSY, Quan DH, Triccas JA, Britton WJ, Chan HK. Rifapentine-loaded PLGA microparticles for tuberculosis inhaled therapy: Preparation and in vitro aerosol characterization. Eur J Pharm Sci 2016; 88:1-11. [PMID: 27049049 DOI: 10.1016/j.ejps.2016.03.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/23/2016] [Accepted: 03/30/2016] [Indexed: 10/22/2022]
Abstract
Inhaled delivery of drugs incorporated into poly (lactic-co-glycolic acid) (PLGA) microparticles allows a sustained lung concentration and encourages phagocytosis by alveolar macrophages that harboring Mycobacterium tuberculosis. However, limited data are available on the effects of physicochemical properties of PLGA, including the monomer ratio (lactide:glycide) and molecular weight (MW) on the aerosol performance, macrophage uptake, and toxicity profile. The present study aims to address this knowledge gap, using PLGAs with monomer ratios of 50:50, 75:25 and 85:15, MW ranged 24 - 240kDa and an anti-tuberculosis (TB) drug, rifapentine. The PLGA-rifapentine powders were produced through a solution spray drying technique. The particles were spherical with a smooth surface and a volume median diameter around 2μm (span ~2). When the powders were dispersed using an Osmohaler(®) at 100L/min for 2.4s, the fine particle fraction (FPFtotal, wt.% particles in aerosol <5μm relative to the total recovered drug mass) was ranged between 52 and 57%, with no significant difference between the formulations. This result suggests that the monomer ratio and MW are not crucial parameters for the aerosol performance of PLGA. The phagocytosis analysis was performed using Thp-1 monocyte-derived macrophages. The highest rate of uptake was observed in PLGA 85:15 followed by 75:25 and 50:50 with about 90%, 80% and 70%, respectively phagocytosis over 4h of exposure. Furthermore, the cytotoxicity analysis on Thp-1 and human lung adenocarcinoma epithelial cells demonstrated that PLGA concentration up to 1.5mg/mL, regardless of the monomer composition and MW, were non-toxic. In conclusion, the monomer ratio and MW are not crucial in determining the aerosol performance and cytotoxicity profile of PLGA however, the particles with high lactide composition have a superior tendency for macrophage uptake.
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Affiliation(s)
- Thaigarajan Parumasivam
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, 2006 NSW, Australia
| | - Sharon S Y Leung
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, 2006 NSW, Australia
| | - Diana Huynh Quan
- Infectious Diseases and Immunology, Sydney Medical School, The University of Sydney, 2006 NSW, Australia
| | - Jamie A Triccas
- Infectious Diseases and Immunology, Sydney Medical School, The University of Sydney, 2006 NSW, Australia
| | - Warwick J Britton
- Infectious Diseases and Immunology, Sydney Medical School, The University of Sydney, 2006 NSW, Australia; Tuberculosis Research Program, Centenary Institute, Newtown 2042 NSW, Australia
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, Faculty of Pharmacy, The University of Sydney, 2006 NSW, Australia.
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Mortimer GM, Jack KS, Musumeci AW, Martin DJ, Minchin RF. Stable non-covalent labeling of layered silicate nanoparticles for biological imaging. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:674-80. [PMID: 26838896 DOI: 10.1016/j.msec.2015.12.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 11/07/2015] [Accepted: 12/15/2015] [Indexed: 12/26/2022]
Abstract
Layered silicate nanoparticles (LSN) are widely used in industrial applications and consumer products. They also have potential benefits in biomedical applications such as implantable devices and for drug delivery. To study how nanomaterials interact with cells and tissues, techniques to track and quantify their movement through different biological compartments are essential. While radiolabels can be very sensitive, particularly for in vivo studies, fluorescent labeling has been preferred in recent years because of the array of methods available to image and quantify fluorescent nanoparticles. However, labeling can be problematic, especially if it alters the physical properties of the nanomaterial. Herein is described a novel non-covalent labeling technique for LSN using readily available fluorescent dimeric cyanine dyes without the need to use excess amounts of dye to achieve labeling, or the need for removal of unbound dye. The approach utilizes the cationic binding properties of layered silicate clays and the multiple quaternary nitrogens associated with the dyes. Preparation of YOYO-1 labeled LSN with optimal dispersion in aqueous media is presented. The utilization of the labeled particles is then demonstrated in cell binding and uptake studies using flow cytometry and confocal microscopy. The labeled LSN are highly fluorescent, stable and exhibit identical physical properties with respect to the unlabeled nanoparticles. The general approach described here is applicable to other cyanine dyes and may be utilized more widely for labeling nanoparticles that comprise a crystalline plate structure with a high binding capacity.
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Affiliation(s)
- Gysell M Mortimer
- School of Biomedical Sciences, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Kevin S Jack
- Centre for Microscopy and Microanalysis, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Anthony W Musumeci
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Darren J Martin
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Rodney F Minchin
- School of Biomedical Sciences, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
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28
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Rietscher R, Czaplewska JA, Majdanski TC, Gottschaldt M, Schubert US, Schneider M, Lehr CM. Impact of PEG and PEG- b -PAGE modified PLGA on nanoparticle formation, protein loading and release. Int J Pharm 2016; 500:187-95. [DOI: 10.1016/j.ijpharm.2016.01.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 01/11/2016] [Accepted: 01/12/2016] [Indexed: 02/02/2023]
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Blin T, Kakinen A, Pilkington EH, Ivask A, Ding F, Quinn JF, Whittaker MR, Ke PC, Davis TP. Synthesis and in vitro properties of iron oxide nanoparticles grafted with brushed phosphorylcholine and polyethylene glycol. Polym Chem 2016. [DOI: 10.1039/c5py02024g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A new and facile strategy for grafting IONPs by phosphonic acic terminated PC brushes has been demonstrated and characterized in vitro.
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Affiliation(s)
- Thomas Blin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Aleksandr Kakinen
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Emily H. Pilkington
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Angela Ivask
- Future Industries Institute
- University of South Australia
- Mawson Lakes
- Australia
| | - Feng Ding
- Department of Physics and Astronomy
- Clemson University
- Clemson
- USA
| | - John F. Quinn
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Michael R. Whittaker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Pu Chun Ke
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Thomas P. Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
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30
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Abdelhamid HN, Wu HF. Proteomics analysis of the mode of antibacterial action of nanoparticles and their interactions with proteins. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.09.010] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Park J, Brust TF, Lee HJ, Lee SC, Watts VJ, Yeo Y. Polydopamine-based simple and versatile surface modification of polymeric nano drug carriers. ACS NANO 2014; 8:3347-56. [PMID: 24628245 PMCID: PMC4107448 DOI: 10.1021/nn405809c] [Citation(s) in RCA: 279] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The surface of a polymeric nanoparticle (NP) is often functionalized with cell-interactive ligands and/or additional polymeric layers to control NP interaction with cells and proteins. However, such modification is not always straightforward when the surface is not chemically reactive. For this reason, most NP functionalization processes employ reactive linkers or coupling agents or involve prefunctionalization of the polymer, which are complicated and inefficient. Moreover, prefunctionalized polymers can lose the ability to encapsulate and retain a drug if the added ligands change the chemical properties of the polymer. To overcome this challenge, we use dopamine polymerization as a way of functionalizing NP surfaces. This method includes brief incubation of the preformed NPs in a weak alkaline solution of dopamine, followed by secondary incubation with desired ligands. Using this method, we have functionalized poly(lactic-co-glycolic acid) (PLGA) NPs with three representative surface modifiers: a small molecule (folate), a peptide (Arg-Gly-Asp), and a polymer [poly(carboxybetaine methacrylate)]. We confirmed that the modified NPs showed the expected cellular interactions with no cytotoxicity or residual bioactivity of dopamine. The dopamine polymerization method is a simple and versatile surface modification method, applicable to a variety of NP drug carriers irrespective of their chemical reactivity and the types of ligands.
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Affiliation(s)
- Joonyoung Park
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Tarsis F. Brust
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Hong Jae Lee
- Department of Maxillofacial Biomedical Engineering & Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul 130-701, Korea
| | - Sang Cheon Lee
- Department of Maxillofacial Biomedical Engineering & Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul 130-701, Korea
| | - Val J. Watts
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Yoon Yeo
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, IN 47907, USA
- Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Korea
- Corresponding author: Yoon Yeo, Ph.D., Phone: 765.496.9608, Fax: 765.494.6545,
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32
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Goonewardena SN, Zong H, Leroueil PR, Baker JR. Bioorthogonal Chemical Handle for Tracking Multifunctional Nanoparticles. Chempluschem 2013. [DOI: 10.1002/cplu.201300007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Beloqui A, Solins MN, Gascn AR, del Pozo-Rodrguez A, des Rieux A, Prat V. Mechanism of transport of saquinavir-loaded nanostructured lipid carriers across the intestinal barrier. J Control Release 2013; 166:115-23. [DOI: 10.1016/j.jconrel.2012.12.021] [Citation(s) in RCA: 159] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 12/11/2012] [Accepted: 12/16/2012] [Indexed: 11/30/2022]
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34
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Protein Adsorption Patterns and Analysis on IV Nanoemulsions-The Key Factor Determining the Organ Distribution. Pharmaceutics 2012; 5:36-68. [PMID: 24300396 PMCID: PMC3834939 DOI: 10.3390/pharmaceutics5010036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 11/30/2012] [Accepted: 12/04/2012] [Indexed: 11/23/2022] Open
Abstract
Intravenous nanoemulsions have been on the market for parenteral nutrition since the 1950s; meanwhile, they have also been used successfully for IV drug delivery. To be well tolerable, the emulsions should avoid uptake by the MPS cells of the body; for drug delivery, they should be target-specific. The organ distribution is determined by the proteins adsorbing them after injection from the blood (protein adsorption pattern), typically analyzed by two-dimensional polyacrylamide gel electrophoresis, 2-D PAGE. The article reviews the 2-D PAGE method, the analytical problems to be faced and the knowledge available on how the composition of emulsions affects the protein adsorption patterns, e.g., the composition of the oil phase, stabilizer layer and drug incorporation into the interface or oil core. Data were re-evaluated and compared, and the implications for the in vivo distribution are discussed. Major results are that the interfacial composition of the stabilizer layer is the main determining factor and that this composition can be modulated by simple processes. Drug incorporation affects the pattern depending on the localization of the drug (oil core versus interface). The data situation regarding in vivo effects is very limited; mainly, it has to be referred to in the in vivo data of polymeric nanoparticles. As a conclusion, determination of the protein adsorption patterns can accelerate IV nanoemulsion formulation development regarding optimized organ distribution and related pharmacokinetics.
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35
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The interplay of lung surfactant proteins and lipids assimilates the macrophage clearance of nanoparticles. PLoS One 2012; 7:e40775. [PMID: 22802970 PMCID: PMC3393659 DOI: 10.1371/journal.pone.0040775] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 06/13/2012] [Indexed: 01/17/2023] Open
Abstract
The peripheral lungs are a potential entrance portal for nanoparticles into the human body due to their large surface area. The fact that nanoparticles can be deposited in the alveolar region of the lungs is of interest for pulmonary drug delivery strategies and is of equal importance for toxicological considerations. Therefore, a detailed understanding of nanoparticle interaction with the structures of this largest and most sensitive part of the lungs is important for both nanomedicine and nanotoxicology. Astonishingly, there is still little known about the bio-nano interactions that occur after nanoparticle deposition in the alveoli. In this study, we compared the effects of surfactant-associated protein A (SP-A) and D (SP-D) on the clearance of magnetite nanoparticles (mNP) with either more hydrophilic (starch) or hydrophobic (phosphatidylcholine) surface modification by an alveolar macrophage (AM) cell line (MH-S) using flow cytometry and confocal microscopy. Both proteins enhanced the AM uptake of mNP compared with pristine nanoparticles; for the hydrophilic ST-mNP, this effect was strongest with SP-D, whereas for the hydrophobic PL-mNP it was most pronounced with SP-A. Using gel electrophoretic and dynamic light scattering methods, we were able to demonstrate that the observed cellular effects were related to protein adsorption and to protein-mediated interference with the colloidal stability. Next, we investigated the influence of various surfactant lipids on nanoparticle uptake by AM because lipids are the major surfactant component. Synthetic surfactant lipid and isolated native surfactant preparations significantly modulated the effects exerted by SP-A and SP-D, respectively, resulting in comparable levels of macrophage interaction for both hydrophilic and hydrophobic nanoparticles. Our findings suggest that because of the interplay of both surfactant lipids and proteins, the AM clearance of nanoparticles is essentially the same, regardless of different intrinsic surface properties.
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36
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Sémiramoth N, Di Meo C, Zouhiri F, Saïd-Hassane F, Valetti S, Gorges R, Nicolas V, Poupaert JH, Chollet-Martin S, Desmaële D, Gref R, Couvreur P. Self-assembled squalenoylated penicillin bioconjugates: an original approach for the treatment of intracellular infections. ACS NANO 2012; 6:3820-3831. [PMID: 22482704 DOI: 10.1021/nn204928v] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We describe here new nanoparticles based on the bioconjugation of penicillin G to squalene in order to overcome severe intracellular infections by pathogen bacteria whose mechanism of resistance arises from the poor intracellular diffusion of several antibiotics. Two different squalene-penicillin G conjugates were synthesized (pH-sensitive and pH-insensitive), and their self-assembly as nanoparticles was investigated through morphology and stability studies. These nanoparticles had a size of 140 ± 10 nm (polydispersity index of 0.1) and a negative charge, and they did not display any supramolecular organization. Furthermore, they were found stable in water and in different culture medium. The cellular uptake and localization of these fluorescently labeled nanoparticles were explored on the macrophage cell line J774 by flow cytometry and confocal microscopy analysis. The squalenoylated nanoparticles were found to be cell internalized through clathrin-dependent and -independent endocytic pathways. Moreover, they induced an improved intracellular antibacterial activity on the facultative intracellular pathogen S. aureus, compared with free penicillin G, despite the absence of co-localization between the bacteria and the nanoparticles in the cells. This study suggests that the bioconjugation of an antibiotic to a squalene template could be a valuable approach for overcoming the antibiotic resistance due to intracellular bacterial infections.
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Affiliation(s)
- Nicolas Sémiramoth
- Faculty of Pharmacy, UMR CNRS 8612, University of Paris-Sud XI, 5 Rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
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37
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Xiao Y, Wiesner MR. Characterization of surface hydrophobicity of engineered nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2012; 215-216:146-51. [PMID: 22417396 DOI: 10.1016/j.jhazmat.2012.02.043] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Revised: 02/08/2012] [Accepted: 02/17/2012] [Indexed: 05/26/2023]
Abstract
The surface chemistry of nanoparticles, including their hydrophobicity, is a key determinant of their fate, transport and toxicity. Engineered NPs often have surface coatings that control the surface chemistry of NPs and may dominate the effects of the nanoparticle core. Suitable characterization methods for surface hydrophobicity at the nano-scale are needed. Three types of methods, surface adsorption, affinity coefficient and contact angle, were investigated in this study with seven carbon and metal based NPs with and without coatings. The adsorption of hydrophobic molecules, Rose Bengal dye and naphthalene, on NPs was used as one measure of hydrophobicity and was compared with the relative affinity of NPs for octanol or water phases, analogous to the determination of octanol-water partition coefficients for organic molecules. The sessile drop method was adapted for measuring contact angle of a thin film of NPs. Results for these three methods were qualitatively in agreement. Aqueous-nC(60) and tetrahydrofuran-nC(60) were observed to be more hydrophobic than nano-Ag coated with polyvinylpyrrolidone or gum arabic, followed by nano-Ag or nano-Au with citrate-functionalized surfaces. Fullerol was shown to be the least hydrophobic of seven NPs tested. The advantages and limitations of each method were also discussed.
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Affiliation(s)
- Yao Xiao
- Department of Civil and Environmental Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA
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38
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Walkey CD, Chan WCW. Understanding and controlling the interaction of nanomaterials with proteins in a physiological environment. Chem Soc Rev 2011; 41:2780-99. [PMID: 22086677 DOI: 10.1039/c1cs15233e] [Citation(s) in RCA: 1117] [Impact Index Per Article: 85.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Nanomaterials hold promise as multifunctional diagnostic and therapeutic agents. However, the effective application of nanomaterials is hampered by limited understanding and control over their interactions with complex biological systems. When a nanomaterial enters a physiological environment, it rapidly adsorbs proteins forming what is known as the protein 'corona'. The protein corona alters the size and interfacial composition of a nanomaterial, giving it a biological identity that is distinct from its synthetic identity. The biological identity determines the physiological response including signalling, kinetics, transport, accumulation, and toxicity. The structure and composition of the protein corona depends on the synthetic identity of the nanomaterial (size, shape, and composition), the nature of the physiological environment (blood, interstitial fluid, cell cytoplasm, etc.), and the duration of exposure. In this critical review, we discuss the formation of the protein corona, its structure and composition, and its influence on the physiological response. We also present an 'adsorbome' of 125 plasma proteins that are known to associate with nanomaterials. We further describe how the protein corona is related to the synthetic identity of a nanomaterial, and highlight efforts to control protein-nanomaterial interactions. We conclude by discussing gaps in the understanding of protein-nanomaterial interactions along with strategies to fill them (167 references).
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Affiliation(s)
- Carl D Walkey
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
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39
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Lundqvist M, Stigler J, Cedervall T, Berggård T, Flanagan MB, Lynch I, Elia G, Dawson K. The evolution of the protein corona around nanoparticles: a test study. ACS NANO 2011; 5:7503-9. [PMID: 21861491 DOI: 10.1021/nn202458g] [Citation(s) in RCA: 545] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The importance of the protein corona formed around nanoparticles upon entering a biological fluid has recently been highlighted. This corona is, when sufficiently long-lived, thought to govern the particles' biological fate. However, even this long-lived "hard" corona evolves and re-equilibrates as particles pass from one biological fluid to another, and may be an important feature for long-term fate. Here we show the evolution of the protein corona as a result of transfer of nanoparticles from one biological fluid (plasma) into another (cytosolic fluid), a simple illustrative model for the uptake of nanoparticles into cells. While no direct comparison can be made to what would happen in, for example, the uptake pathway, the results confirm that significant evolution of the corona occurs in the second biological solution, but that the final corona contains a "fingerprint" of its history. This could be evolved to map the transport pathways utilized by nanoparticles, and eventually to predict nanoparticle fate and behavior.
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Affiliation(s)
- Martin Lundqvist
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Dublin, Ireland.
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40
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Nicolete R, dos Santos DF, Faccioli LH. The uptake of PLGA micro or nanoparticles by macrophages provokes distinct in vitro inflammatory response. Int Immunopharmacol 2011; 11:1557-63. [PMID: 21621649 DOI: 10.1016/j.intimp.2011.05.014] [Citation(s) in RCA: 164] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 05/05/2011] [Accepted: 05/13/2011] [Indexed: 10/18/2022]
Abstract
Biodegradable micro/nanoparticles generated from PLGA have recently attracted attention due to their clinically proven biocompatibility, especially for immunization purposes. These polymeric particulate delivery systems are able to present antigens and activate both humoral and cellular responses. Many studies have discussed the ideal size of these particles in contributing to the generation of the different types of immune response. However, these studies do not demonstrate the effect of micro or nanoparticles, without any encapsulated bioactive, on phagocytic cells after the uptake process. In this context, the aim of this study was to analyze the in vitro inflammatory behavior of J774 murine macrophages after particles' uptake, since nano/microparticles per se can differently activate phagocytic cells, using or not appropriate receptors, inducing distinct inflammatory responses. An o/w emulsion solvent extraction-evaporation method was chosen to prepare the particles. We determined their diameters, zeta potential and morphology. Fluorescent particles' uptake by J774 murine "macrophage-like" cells was also analyzed. To evaluate the in vitro inflammatory profile of these cells after micro or nanoparticles' uptake, we conducted NF-κB translocation assay by confocal microscopy and also determined the pro-inflammatory cytokines production provoked by the particles.
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Affiliation(s)
- Roberto Nicolete
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, 14040-903, Ribeirão Preto, São Paulo, Brazil.
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41
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Gupta GK, Jain V, Mishra PR. Templated ultrathin polyelectrolyte microreservoir for delivery of bovine serum albumin: fabrication and performance evaluation. AAPS PharmSciTech 2011; 12:344-53. [PMID: 21286881 DOI: 10.1208/s12249-011-9593-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 01/19/2011] [Indexed: 11/30/2022] Open
Abstract
The aim of the study was to develop ultrathin polyelectrolyte microreservoir (UPM) using two combinations of synthetic/synthetic (S/s; poly(allylamine hydrochloride) (PAH)/sodium poly(styrenesulfonate)) and synthetic/natural (S/n; PAH/sodium alginate) polyelectrolytes over spherical porous CaCO(3) core particles (CP) followed by core removal and to evaluate its biocompatibility and integrity of loaded model protein bovine serum albumin (BSA). A novel process for synthesis of CP was developed to obtain maximum yield of monodisperse vaterite (spherical) polymorph. The prepared UPM was characterized for surface morphology, layer-by-layer growth, pay load efficiency, integrity of BSA, as well as viability and cell adhesion using murine J 774 macrophages (Φ). In vitro release profile revealed that both S/s and S/n UPM were able to provide sufficient diffusion barrier to release protein at physiological pH. It has been observed that S/n UPM are fully biocompatible due to obvious reason of using natural polymer. In a separate experiment, the S/s UPM surface was modified with pluronic F-68 to tune biocompatibility which provides evidences for safety and tolerability of the S/s UPM as well. In nutshell, the proposed system could successfully be used for the delivery of proteins, and moreover, the system can be tailored to impart desired properties at any stage of layering especially in terms of drug release and to retain the integrity of proteins.
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Kutscher HL, Chao P, Deshmukh M, Sundara Rajan S, Singh Y, Hu P, Joseph LB, Stein S, Laskin DL, Sinko PJ. Enhanced passive pulmonary targeting and retention of PEGylated rigid microparticles in rats. Int J Pharm 2010; 402:64-71. [PMID: 20883756 DOI: 10.1016/j.ijpharm.2010.09.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 09/18/2010] [Accepted: 09/22/2010] [Indexed: 10/19/2022]
Abstract
The current study examines the passive pulmonary targeting efficacy and retention of 6μm polystyrene (PS) microparticles (MPs) covalently modified with different surface groups [amine (A-), carboxyl (C-) and sulfate (S-)] or single (PEG(1)-) and double (PEG(2)-) layers of α,ω-diamino poly(ethylene glycol) attached to C-MPs. The ζ-potential of A-MPs (-44.0mV), C-MPs (-54.3mV) and S-MPs (-49.6mV) in deionized water were similar; however PEGylation increased the ζ-potential for both PEG(1)-MPs (-18.3mV) and PEG(2)-MPs (11.5mV). The biodistribution and retention of intravenously administered MPs to male Sprague-Dawley rats was determined in homogenized tissue by fluorescence spectrophotometry. PEG(1)-MPs and PEG(2)-MPs demonstrated enhanced pulmonary retention in rats at 48h after injection when compared to unmodified A-MPs (59.6%, 35.9% and 17.0% of the administered dose, respectively). While unmodified MPs did not significantly differ in lung retention, PEGylation of MPs unexpectedly improved passive lung targeting and retention by modifying surface properties including charge and hydrophobicity but not size.
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Affiliation(s)
- Hilliard L Kutscher
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
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Transferrin-conjugated nanoparticles of poly(lactide)-D-alpha-tocopheryl polyethylene glycol succinate diblock copolymer for targeted drug delivery across the blood-brain barrier. Biomaterials 2010; 31:7748-57. [PMID: 20673685 DOI: 10.1016/j.biomaterials.2010.06.053] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2010] [Accepted: 06/28/2010] [Indexed: 11/24/2022]
Abstract
We developed in this research a nanoparticle system for targeted drug delivery across the blood-brain barrier (BBB), which consists of the transferrin (Tf) conjugated nanoparticles of poly(lactide)-D-alpha-Tocopheryl polyethylene glycol succinate (PLA-TPGS) diblock copolymer. The NPs were prepared by the nanoprecipitation method and characterized for their various physicochemical and pharmaceutical properties. Cellular uptake and cytotoxicity of the Tf-conjugated PLA-TPGS NPs formulation of coumarin 6 as a model imaging agent or Docetaxel as a model drug were investigated in close comparison with those for the PLGA NPs formulation, the bare PLA-TPGS NPs formulation as well as with the clinical Taxotere. The Tf-conjugated PLA-TPGS NPs formulation demonstrated great advantages over the other two NPs formulations and the original imaging/therapeutic agents. IC50 data showed that the Tf-conjugated PLA-TPGS NPs formulation of Docetaxel could be 23.4%, 16.9% and 229% more efficient than the PLGA NPs, the PLA-TPGS NPs formulations and Taxotere after 24 h treatment, respectively. Moreover, our preliminary ex vivo biodistribution investigation demonstrated that although not as satisfactory, the Tf-conjugated PLA-TPGS NPs formulation could be able to deliver imaging/therapeutic agents across the BBB.
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Pulmonary targeting microparticulate camptothecin delivery system: anticancer evaluation in a rat orthotopic lung cancer model. Anticancer Drugs 2010; 21:65-76. [PMID: 19966540 DOI: 10.1097/cad.0b013e328332a322] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Large (>6 microm) rigid microparticles (MPs) become passively entrapped within the lungs after intravenous (i.v.) injection making them an attractive and highly efficient alternative to inhalation for pulmonary delivery. In this study, PEGylated 6 microm polystyrene MPs with multiple copies of the norvaline (Nva) alpha-amino acid prodrug of camptothecin (CPT) were prepared. Surface morphology was characterized using a scanning electron microscope. CPT was released from the CPT-Nva-MPs over 24 h in rat plasma at 37 degrees C. In-vivo CPT plasma concentrations were low (approximately 1 ng/ml or less) and constant over a period of 4 days after a single i.v. injection of CPT-Nva-MPs as compared with high but short-lived systemic exposures after an i.v. injection of free CPT. This suggests that sustained local CPT concentrations were achieved in the lung after administration of the MP delivery system. Anticancer efficacy was evaluated in an orthotopic lung cancer animal model and compared with a bolus injection of CPT. Animals receiving free CPT (2 mg/kg) and CPT-Nva-MPs (0.22 mg/kg CPT and 100 mg/kg MPs) were found to have statistically significant smaller areas of lung cancer (P<0.05 and 0.01, respectively) than untreated animals. In addition, 40% of the animals receiving CPT-Nva-MPs were found to be free of cancer. The CPT dose using targeted MPs was 10 times lower than after i.v. injection of free CPT, but was more effective in reducing the amount of cancerous areas. In conclusion, CPT-Nva-MPs were able to achieve effective local lung and low systemic CPT concentrations at a dose that was 10 times lower than systemically administered CPT resulting in a significant improvement in anticancer efficacy in an orthotopic rat model of lung cancer.
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Aggarwal P, Hall JB, McLeland CB, Dobrovolskaia MA, McNeil SE. Nanoparticle interaction with plasma proteins as it relates to particle biodistribution, biocompatibility and therapeutic efficacy. Adv Drug Deliv Rev 2009; 61:428-37. [PMID: 19376175 PMCID: PMC3683962 DOI: 10.1016/j.addr.2009.03.009] [Citation(s) in RCA: 1208] [Impact Index Per Article: 80.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2008] [Accepted: 03/30/2009] [Indexed: 11/28/2022]
Abstract
Proteins bind the surfaces of nanoparticles, and biological materials in general, immediately upon introduction of the materials into a physiological environment. The further biological response of the body is influenced by the nanoparticle-protein complex. The nanoparticle's composition and surface chemistry dictate the extent and specificity of protein binding. Protein binding is one of the key elements that affects biodistribution of the nanoparticles throughout the body. Here we review recent research on nanoparticle physicochemical properties important for protein binding, techniques for isolation and identification of nanoparticle-bound proteins, and how these proteins can influence particle biodistribution and biocompatibility. Understanding the nanoparticle-protein complex is necessary for control and manipulation of protein binding, and allows for improved engineering of nanoparticles with favorable bioavailability and biodistribution.
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Affiliation(s)
- Parag Aggarwal
- Nanotechnology Characterization Laboratory, Advanced Technology Program, SAIC-Frederick Inc., NCI-Frederick, Frederick, MD 21702, USA
| | - Jennifer B. Hall
- Nanotechnology Characterization Laboratory, Advanced Technology Program, SAIC-Frederick Inc., NCI-Frederick, Frederick, MD 21702, USA
| | - Christopher B. McLeland
- Nanotechnology Characterization Laboratory, Advanced Technology Program, SAIC-Frederick Inc., NCI-Frederick, Frederick, MD 21702, USA
| | - Marina A. Dobrovolskaia
- Nanotechnology Characterization Laboratory, Advanced Technology Program, SAIC-Frederick Inc., NCI-Frederick, Frederick, MD 21702, USA
| | - Scott E. McNeil
- Nanotechnology Characterization Laboratory, Advanced Technology Program, SAIC-Frederick Inc., NCI-Frederick, Frederick, MD 21702, USA
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Hellstrand E, Lynch I, Andersson A, Drakenberg T, Dahlbäck B, Dawson KA, Linse S, Cedervall T. Complete high-density lipoproteins in nanoparticle corona. FEBS J 2009; 276:3372-81. [PMID: 19438706 DOI: 10.1111/j.1742-4658.2009.07062.x] [Citation(s) in RCA: 193] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In a biological environment, nanoparticles immediately become covered by an evolving corona of biomolecules, which gives a biological identity to the nanoparticle and determines its biological impact and fate. Previous efforts at describing the corona have concerned only its protein content. Here, for the first time, we show, using size exclusion chromatography, NMR, and pull-down experiments, that copolymer nanoparticles bind cholesterol, triglycerides and phospholipids from human plasma, and that the binding reaches saturation. The lipid and protein binding patterns correspond closely with the composition of high-density lipoprotein (HDL). By using fractionated lipoproteins, we show that HDL binds to copolymer nanoparticles with much higher specificity than other lipoproteins, probably mediated by apolipoprotein A-I. Together with the previously identified protein binding patterns in the corona, our results imply that copolymer nanoparticles bind complete HDL complexes, and may be recognized by living systems as HDL complexes, opening up these transport pathways to nanoparticles. Apolipoproteins have been identified as binding to many other nanoparticles, suggesting that lipid and lipoprotein binding is a general feature of nanoparticles under physiological conditions.
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Hardesty JO, Cascão-Pereira L, Kellis JT, Robertson CR, Frank CW. Enzymatic proteolysis of a surface-bound alpha-helical polypeptide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:13944-13956. [PMID: 19360953 DOI: 10.1021/la8020386] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, we studied the interactions of enzymes with model substrate surfaces using label-free techniques. Our model system was based on serine proteases (a class of enzymes that digests proteins) and surface-bound polypeptide substrates. While previous studies have focused on bulk media factors such as pH, ionic strength, and surfactants, this study focuses on the role of the surface-bound substrate itself. In particular, we assess how the substrate density of a polypeptide with an alpha-helical secondary structure influences surface reactivity. An alpha-helical secondary structure was chosen based on literature indicating that stable alpha-helices can resist enzymatic digestion. To investigate the protease resistance of a surface-bound a-helix, we designed an a-helical polypeptide (SS-polypeptide, where SS = disulfide), used it to form films of varying surface coverage and then measured responses of the films to enzymatic exposure. Using quartz-crystal microbalance with dissipation (QCM-D), angle-resolved X-ray photoelectron spectroscopy (AR-XPS), grazing-angle infrared spectroscopy (GAIRS), and other techniques, we characterized the degradation of films to determine how the lateral packing density of the surface-bound SS-polypeptide substrate affected surface proteolysis. Characterization of pure SS-polypeptide films indicated dense packing of helices that maintained their helical structure and were generally oriented normal to the surface. We found that films of pure SS-polypeptide significantly resisted enzymatic digestion, while incorporation of very minor amounts of a diluent in such films resulted in rapid digestion. In part, this may be due to the need for the enzyme to bind several peptides along the peptide substrate within the cleft for digestion to occur. Only SS-polypeptide films that were densely packed and did not permit catalytic access to multiple peptides (e.g., terminal peptides only) were resistant to enzymatic proteolysis.
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Affiliation(s)
- Jasper O Hardesty
- Biochemistry Department, Genencor International, Palo Alto, California 94304, USA
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Nanoparticle size and surface properties determine the protein corona with possible implications for biological impacts. Proc Natl Acad Sci U S A 2008. [PMID: 18809927 DOI: 10.1073/pnas.0805135105)] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Nanoparticles in a biological fluid (plasma, or otherwise) associate with a range of biopolymers, especially proteins, organized into the "protein corona" that is associated with the nanoparticle and continuously exchanging with the proteins in the environment. Methodologies to determine the corona and to understand its dependence on nanomaterial properties are likely to become important in bionanoscience. Here, we study the long-lived ("hard") protein corona formed from human plasma for a range of nanoparticles that differ in surface properties and size. Six different polystyrene nanoparticles were studied: three different surface chemistries (plain PS, carboxyl-modified, and amine-modified) and two sizes of each (50 and 100 nm), enabling us to perform systematic studies of the effect of surface properties and size on the detailed protein coronas. Proteins in the corona that are conserved and unique across the nanoparticle types were identified and classified according to the protein functional properties. Remarkably, both size and surface properties were found to play a very significant role in determining the nanoparticle coronas on the different particles of identical materials. We comment on the future need for scientific understanding, characterization, and possibly some additional emphasis on standards for the surfaces of nanoparticles.
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Nanoparticle size and surface properties determine the protein corona with possible implications for biological impacts. Proc Natl Acad Sci U S A 2008; 105:14265-70. [PMID: 18809927 DOI: 10.1073/pnas.0805135105] [Citation(s) in RCA: 2055] [Impact Index Per Article: 128.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Nanoparticles in a biological fluid (plasma, or otherwise) associate with a range of biopolymers, especially proteins, organized into the "protein corona" that is associated with the nanoparticle and continuously exchanging with the proteins in the environment. Methodologies to determine the corona and to understand its dependence on nanomaterial properties are likely to become important in bionanoscience. Here, we study the long-lived ("hard") protein corona formed from human plasma for a range of nanoparticles that differ in surface properties and size. Six different polystyrene nanoparticles were studied: three different surface chemistries (plain PS, carboxyl-modified, and amine-modified) and two sizes of each (50 and 100 nm), enabling us to perform systematic studies of the effect of surface properties and size on the detailed protein coronas. Proteins in the corona that are conserved and unique across the nanoparticle types were identified and classified according to the protein functional properties. Remarkably, both size and surface properties were found to play a very significant role in determining the nanoparticle coronas on the different particles of identical materials. We comment on the future need for scientific understanding, characterization, and possibly some additional emphasis on standards for the surfaces of nanoparticles.
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Ostacolo L, Russo P, De Rosa G, La Rotonda MI, Maglio G, Nese G, Spagnuolo G, Rengo S, Oliva A, Quaglia F. Poly(ether ester amide) Microspheres for Protein Delivery: Influence of Copolymer Composition on Technological and Biological Properties. Macromol Biosci 2008; 8:682-9. [DOI: 10.1002/mabi.200700303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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