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Saha A, Mishra P, Biswas G, Bhakta S. Greening the pathways: a comprehensive review of sustainable synthesis strategies for silica nanoparticles and their diverse applications. RSC Adv 2024; 14:11197-11216. [PMID: 38590352 PMCID: PMC11000228 DOI: 10.1039/d4ra01047g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 03/22/2024] [Indexed: 04/10/2024] Open
Abstract
Silica nanoparticles (SiNPs) have emerged as a multipurpose solution with wide-ranging applications in various industries such as medicine, agriculture, construction, cosmetics, and food production. In 1961, Stöber introduced a ground-breaking sol-gel method for synthesizing SiNPs, which carried a new era of exploration both in academia and industry, uncovering numerous possibilities for these simple yet multifaceted particles. Inspite of numerous reported literature with wide applicability, the synthesis of these nanoparticles with the desired size and functionalities poses considerable challenges. Over time, researchers have strived to optimize the synthetic route, particularly by developing greener approaches that minimize environmental impact. By reducing hazardous chemicals, energy consumption, and waste generation, these greener synthesis methods have become an important focus in the field. This review aims to provide a comprehensive analysis of the various synthetic approaches available for different types of SiNPs. Starting from the Stöber' method, we analyze other methods as well to synthesis different types of SiNPs including mesoporous, core-shell and functionalized nanoparticles. With increasing concerns with the chemical methods associated for environmental issues, we aim to assist readers in identifying suitable greener synthesis methods tailored to their specific requirements. By highlighting the advancements in reaction time optimization, waste reduction, and environmentally friendly precursors, we offer insights into the latest techniques that contribute to greener and more sustainable SiNPs synthesis. Additionally, we briefly discuss the diverse applications of SiNPs, demonstrating their relevance and potential impact in fields such as medicine, agriculture, and cosmetics. By emphasizing the greener synthesis methods and economical aspects, this review aims to inspire researchers and industry professionals to adopt environmentally conscious practices while harnessing the immense capabilities of SiNPs.
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Affiliation(s)
- Arighna Saha
- Department of Chemistry, Cooch Behar Panchanan Barma University Cooch Behar 736101 West Bengal India
- Cooch Behar College Cooch Behar 736101 West Bengal India
| | - Prashant Mishra
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi New Delhi 110016 India
| | - Goutam Biswas
- Department of Chemistry, Cooch Behar Panchanan Barma University Cooch Behar 736101 West Bengal India
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2
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Vasicek TW, Guillermo S, Swofford DR, Durchman J, Jenkins SV. β-Glucosidase Immobilized on Magnetic Nanoparticles: Controlling Biomolecule Footprint and Particle Functional Group Density to Navigate the Activity-Stability Tradeoff. ACS APPLIED BIO MATERIALS 2022; 5:5347-5355. [PMID: 36331934 DOI: 10.1021/acsabm.2c00735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In the present work, the immobilized footprint of β-glucosidase (BGL) on silica-coated iron oxide was explored to produce reusable catalysts with flexible active sites for high activity and heightened storage stability. Synthesized iron oxide particles were coated with silica and functionalized with various densities of (3-aminopropyl)triethoxysilane (APTES) to obtain particles with amine densities ranging from 0 to 3 × 10-5 mol/g particle. The amine-modified particles were activated with glutaraldehyde, and subsequently, BGL was immobilized using either a 0.1 or 1 mg/mL enzyme solution to produce biomolecules with a large or small footprint on the particle surface. The initial activity, activity for subsequent hydrolysis cycles, activity after extended storage, and biomolecule footprint were studied as a function of APTES density and concentration of enzyme used for immobilization. At high immobilization amounts, the specific activity and footprint were reduced, but the immobilized biomolecules were stable during storage. However, at low enzyme immobilizations, the activity of the enzymes was retained, the immobilized enzymes adopted large footprints, and the storage stability increased with APTES density relative to the free enzyme. These results highlight how controlling both the protein load and functional group density can yield immobilized enzymes possessing high activity, which are stable during storage.
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Affiliation(s)
- Thaddeus W Vasicek
- Department of Chemistry, The Citadel, Charleston, South Carolina29409, United States
| | - Sylvester Guillermo
- Department of Chemistry, The Citadel, Charleston, South Carolina29409, United States
| | - Danny R Swofford
- Department of Chemistry, The Citadel, Charleston, South Carolina29409, United States
| | - Jeremy Durchman
- Department of Physical Science, University of Arkansas Fort Smith, Fort Smith, Arkansas72913, United States
| | - Samir V Jenkins
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, Arkansas72205, United States
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3
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Corsi P, De Filippo CA, Del Galdo S, Capone B. Unveiling adsorption generality in polymeric macromolecules. SOFT MATTER 2022; 18:6353-6359. [PMID: 35968896 DOI: 10.1039/d2sm00822j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Unveiling a general law for adsorption within macromolecules sets an important step forward in the design of nanomaterials with tunable and controllable properties. Reaching such a generalised control would have an important outcome in a plethora of possible fields, from biomedical applications up to materials science. In fact, the definition of classes regrouping adsorbing macromolecules with different geometrical or chemical properties would enormously simplify the design of controllable adsorbing materials, especially when geometrical or chemical constraints are set by the particular application. In this work we derive, through a combination of Scaling Theories and Molecular Dynamics Simulations, a general law for adsorption of spherical non-deformable colloidal nanoparticles within polymeric macromolecules of different geometries. Starting from the case of adsorption of a single colloid within macromolecular systems, we extend the results to the case in which finite adsorption takes place. We then derive simple predictions linking the adsorption potential to general properties of classes of macromolecules, and introduce a set of measurable quantities that can be exploited as an indirect measurement for loading.
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Affiliation(s)
- Pietro Corsi
- Science Department, University of Roma Tre, Via della Vasca Navale 84, 00146, Rome, Italy.
| | | | - Sara Del Galdo
- Science Department, University of Roma Tre, Via della Vasca Navale 84, 00146, Rome, Italy.
| | - Barbara Capone
- Science Department, University of Roma Tre, Via della Vasca Navale 84, 00146, Rome, Italy.
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4
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Massoumi H, Kumar R, Chug MK, Qian Y, Brisbois EJ. Nitric Oxide Release and Antibacterial Efficacy Analyses of S-Nitroso- N-Acetyl-Penicillamine Conjugated to Titanium Dioxide Nanoparticles. ACS APPLIED BIO MATERIALS 2022; 5:2285-2295. [PMID: 35443135 PMCID: PMC9721035 DOI: 10.1021/acsabm.2c00131] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Therapeutic agents can be linked to nanoparticles to fortify their selectivity and targeted delivery while impeding systemic toxicity and efficacy loss. Titanium dioxide nanoparticles (TiNPs) owe their rise in biomedical sciences to their versatile applicability, although the lack of inherent antibacterial properties limits its application and necessitates the addition of bactericidal agents along with TiNPs. Structural modifications can improve TiNP's antibacterial impact. The antibacterial efficacy of nitric oxide (NO) against a broad spectrum of bacterial strains is well established. For the first time, S-nitroso-N-acetylpenicillamine (SNAP), an NO donor molecule, was covalently immobilized on TiNPs to form the NO-releasing TiNP-SNAP nanoparticles. The TiNPs were silanized with 3-aminopropyl triethoxysilane, and N-acetyl-d-penicillamine was grafted to them via an amide bond. The nitrosation was carried out by t-butyl nitrite to conjugate the NO-rich SNAP moiety to the surface. The total NO immobilization was measured to be 127.55 ± 4.68 nmol mg-1 using the gold standard chemiluminescence NO analyzer. The NO payload can be released from the TiNP-SNAP under physiological conditions for up to 20 h. The TiNP-SNAP exhibited a concentration-dependent antimicrobial efficiency. At 5 mg mL-1, more than 99.99 and 99.70% reduction in viable Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria, respectively, were observed. No significant cytotoxicity was observed against 3T3 mouse fibroblast cells at all the test concentrations determined by the CCK-8 assay. TiNP-SNAP is a promising and versatile nanoparticle that can significantly impact the usage of TiNPs in a wide variety of applications, such as biomaterial coatings, tissue engineering scaffolds, or wound dressings.
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Affiliation(s)
- Hamed Massoumi
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Rajnish Kumar
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Manjyot Kaur Chug
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Yun Qian
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Elizabeth J Brisbois
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
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5
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Lee J, Kim J, Heo I, Kim SJ, Lee HY, Jang S, Jang KS, Yang CS, Lee Y, Yoo WC, Min SJ. One-Pot Bifunctionalization of Silica Nanoparticles Conjugated with Bioorthogonal Linkers: Application in Dual-modal Imaging. Biomater Sci 2022; 10:3540-3546. [DOI: 10.1039/d2bm00258b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covalent surface modification of silica nanoparticles (SNPs) offers great potential for the development of multimodal nanomaterials for biomedical applications. Herein, we report the synthesis of covalently conjugated bifunctional SNPs and...
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6
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Geißler D, Nirmalananthan-Budau N, Scholtz L, Tavernaro I, Resch-Genger U. Analyzing the surface of functional nanomaterials-how to quantify the total and derivatizable number of functional groups and ligands. Mikrochim Acta 2021; 188:321. [PMID: 34482449 PMCID: PMC8418596 DOI: 10.1007/s00604-021-04960-5] [Citation(s) in RCA: 3] [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: 06/23/2021] [Accepted: 08/08/2021] [Indexed: 12/04/2022]
Abstract
Functional nanomaterials (NM) of different size, shape, chemical composition, and surface chemistry are of increasing relevance for many key technologies of the twenty-first century. This includes polymer and silica or silica-coated nanoparticles (NP) with covalently bound surface groups, semiconductor quantum dots (QD), metal and metal oxide NP, and lanthanide-based NP with coordinatively or electrostatically bound ligands, as well as surface-coated nanostructures like micellar encapsulated NP. The surface chemistry can significantly affect the physicochemical properties of NM, their charge, their processability and performance, as well as their impact on human health and the environment. Thus, analytical methods for the characterization of NM surface chemistry regarding chemical identification, quantification, and accessibility of functional groups (FG) and surface ligands bearing such FG are of increasing importance for quality control of NM synthesis up to nanosafety. Here, we provide an overview of analytical methods for FG analysis and quantification with special emphasis on bioanalytically relevant FG broadly utilized for the covalent attachment of biomolecules like proteins, peptides, and oligonucleotides and address method- and material-related challenges and limitations. Analytical techniques reviewed include electrochemical titration methods, optical assays, nuclear magnetic resonance and vibrational spectroscopy, as well as X-ray based and thermal analysis methods, covering the last 5-10 years. Criteria for method classification and evaluation include the need for a signal-generating label, provision of either the total or derivatizable number of FG, need for expensive instrumentation, and suitability for process and production control during NM synthesis and functionalization.
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Affiliation(s)
- Daniel Geißler
- Bundesanstalt für Materialforschung und -prüfung (BAM), Division Biophotonics (BAM-1.2), Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - Nithiya Nirmalananthan-Budau
- Bundesanstalt für Materialforschung und -prüfung (BAM), Division Biophotonics (BAM-1.2), Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - Lena Scholtz
- Bundesanstalt für Materialforschung und -prüfung (BAM), Division Biophotonics (BAM-1.2), Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - Isabella Tavernaro
- Bundesanstalt für Materialforschung und -prüfung (BAM), Division Biophotonics (BAM-1.2), Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - Ute Resch-Genger
- Bundesanstalt für Materialforschung und -prüfung (BAM), Division Biophotonics (BAM-1.2), Richard-Willstätter-Str. 11, 12489, Berlin, Germany.
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7
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Cheng R, Wang S, Moslova K, Mäkilä E, Salonen J, Li J, Hirvonen J, Xia B, Santos HA. Quantitative Analysis of Porous Silicon Nanoparticles Functionalization by 1H NMR. ACS Biomater Sci Eng 2021; 8:4132-4139. [PMID: 34292713 PMCID: PMC9554871 DOI: 10.1021/acsbiomaterials.1c00440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
![]()
Porous silicon (PSi)
nanoparticles have been applied in various
fields, such as catalysis, imaging, and biomedical applications, because
of their large specific surface area, easily modifiable surface chemistry,
biocompatibility, and biodegradability. For biomedical applications,
it is important to precisely control the surface modification of PSi-based
materials and quantify the functionalization density, which determines
the nanoparticle’s behavior in the biological system. Therefore,
we propose here an optimized solution to quantify the functionalization
groups on PSi, based on the nuclear magnetic resonance (NMR) method
by combining the hydrolysis with standard 1H NMR experiments.
We optimized the hydrolysis conditions to degrade the PSi, providing
mobility to the molecules for NMR detection. The NMR parameters were
also optimized by relaxation delay and the number of scans to provide
reliable NMR spectra. With an internal standard, we quantitatively
analyzed the surficial amine groups and their sequential modification
of polyethylene glycol. Our investigation provides a reliable, fast,
and straightforward method in quantitative analysis of the surficial
modification characterization of PSi requiring a small amount of sample.
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Affiliation(s)
- Ruoyu Cheng
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Shiqi Wang
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Karina Moslova
- Department of Chemistry, Faculty of Science, University of Helsinki, Helsinki FI-00014, Finland
| | - Ermei Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, Turku FI-20014, Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, Turku FI-20014, Finland
| | - Jiachen Li
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland.,College of Science Key Laboratory of Forest Genetics & Biotechnology (Ministry of Education of China), Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Jouni Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Bing Xia
- College of Science Key Laboratory of Forest Genetics & Biotechnology (Ministry of Education of China), Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland.,Helsinki Insititute of Life Science, HiLIFE, University of Helsinki, Helsinki FI-00014, Finland
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8
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Artificial Protein Coronas Enable Controlled Interaction with Corneal Epithelial Cells: New Opportunities for Ocular Drug Delivery. Pharmaceutics 2021; 13:pharmaceutics13060867. [PMID: 34204664 PMCID: PMC8231102 DOI: 10.3390/pharmaceutics13060867] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
Topical administration is the most convenient route for ocular drug delivery, but only a minor fraction is retained in the precorneal pocket. To overcome this limitation, numerous drug delivery systems (DDS) have been developed. The protein corona (PC) is the layer of biomolecules (e.g., proteins, sugars, lipids, etc.) that forms around DDS in physiological environments by non-covalent interaction. The PC changes the DDS physical-chemical properties, providing them with a completely novel biological identity. The specific involvement of PC in ocular drug delivery has not been addressed so far. To fulfill this gap, here we explored the interaction between a library of four cationic liposome-DNA complexes (lipoplexes) and mucin (MUC), one of the main components of the tear film. We demonstrate that MUC binds to the lipoplex surface shifting both their size and surface charge and reducing their absorption by primary corneal epithelial cells. To surpass such restrictions, we coated lipoplexes with two different artificial PCs made of Fibronectin (FBN) and Val-Gly-Asp (VGA) tripeptide that are recognized by receptors expressed on the ocular surface. Both these functionalizations remarkedly boosted internalization in corneal epithelial cells with respect to pristine (i.e., uncoated) lipoplexes. This opens the gateway for the exploitation of artificial protein corona in targeted ocular delivery, which will significantly influence the development of novel nanomaterials.
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9
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Sousa Ribeiro IR, Galdino FE, Silveira CP, Cardoso MB. Precision medicine based on nanoparticles: the paradigm between targeting and colloidal stability. Nanomedicine (Lond) 2021; 16:1451-1456. [PMID: 34080440 DOI: 10.2217/nnm-2021-0112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Iris Renata Sousa Ribeiro
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy & Materials (CNPEM), Campinas, 13083 970, Brazil.,Institute of Chemistry (IQ), University of Campinas (UNICAMP), Post Office Box 6154, Campinas, SP, 13083 970, Brazil
| | - Flávia Elisa Galdino
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy & Materials (CNPEM), Campinas, 13083 970, Brazil.,Institute of Chemistry (IQ), University of Campinas (UNICAMP), Post Office Box 6154, Campinas, SP, 13083 970, Brazil
| | - Camila Pedroso Silveira
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy & Materials (CNPEM), Campinas, 13083 970, Brazil
| | - Mateus Borba Cardoso
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy & Materials (CNPEM), Campinas, 13083 970, Brazil.,Institute of Chemistry (IQ), University of Campinas (UNICAMP), Post Office Box 6154, Campinas, SP, 13083 970, Brazil
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10
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Smits J, Giri RP, Shen C, Mendonça D, Murphy B, Huber P, Rezwan K, Maas M. Synergistic and Competitive Adsorption of Hydrophilic Nanoparticles and Oil-Soluble Surfactants at the Oil-Water Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5659-5672. [PMID: 33905659 DOI: 10.1021/acs.langmuir.1c00559] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fundamental insights into the interplay and self-assembly of nanoparticles and surface-active agents at the liquid-liquid interface play a pivotal role in understanding the ubiquitous colloidal systems present in our natural surroundings, including foods and aquatic life, and in the industry for emulsion stabilization, drug delivery, or enhanced oil recovery. Moreover, well-controlled model systems for mixed interfacial adsorption of nanoparticles and surfactants allow unprecedented insights into nonideal or contaminated particle-stabilized emulsions. Here, we investigate such a model system composed of hydrophilic, negatively, and positively charged silica nanoparticles and the oil-soluble cationic lipid octadecyl amine with in situ synchrotron-based X-ray reflectometry, which is analyzed and discussed jointly with dynamic interfacial tensiometry. Our results indicate that negatively charged silica nanoparticles only adsorb if the oil-water interface is covered with the positively charged lipid, indicating synergistic adsorption. Conversely, the positively charged nanoparticles readily adsorb on their own, but compete with octadecyl amine and reversibly desorb with increasing concentrations of the lipid. These results further indicate that with competitive adsorption, an electrostatic exclusion zone exists around the adsorbed particles. This prevents the adsorption of lipid molecules in this area, leading to a decreased surface excess concentration of surfactants and unexpectedly high interfacial tension.
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Affiliation(s)
- Joeri Smits
- Advanced Ceramics, University of Bremen, Am Biologischen Garten 2, D-28359 Bremen, Germany
| | - Rajendra P Giri
- Institute of Experimental and Applied Physics, Kiel University, D-24098 Kiel, Germany
| | - Chen Shen
- DESY Photon Science, Notkestraße 85, D-22607 Hamburg, Germany
| | - Diogo Mendonça
- Advanced Ceramics, University of Bremen, Am Biologischen Garten 2, D-28359 Bremen, Germany
- Department of Mechanical Engineering, Federal University of Santa Catarina, 88040-900 Florianopolis, Brazil
| | - Bridget Murphy
- Institute of Experimental and Applied Physics, Kiel University, D-24098 Kiel, Germany
- Ruprecht-Haensel Laboratory, Kiel University, 24118 Kiel, Germany
| | - Patrick Huber
- DESY Photon Science, Notkestraße 85, D-22607 Hamburg, Germany
- Institute for Materials and X-Ray Physics, Hamburg University of Technology, Eißendorfer Straße 42, 21073 Hamburg, Germany
- Center for Hybrid Nanostructures ChyN, Hamburg University, Luruper Chaussee 149, 22607 Hamburg, Germany
| | - Kurosch Rezwan
- Advanced Ceramics, University of Bremen, Am Biologischen Garten 2, D-28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, Bibliothekstraße 1, D-28359 Bremen, Germany
| | - Michael Maas
- Advanced Ceramics, University of Bremen, Am Biologischen Garten 2, D-28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, Bibliothekstraße 1, D-28359 Bremen, Germany
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11
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Effect of surface decoration on properties and drug release ability of nanogels. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126164] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Hristov DR, Lopez H, Ortin Y, O'Sullivan K, Dawson KA, Brougham DF. Impact of dynamic sub-populations within grafted chains on the protein binding and colloidal stability of PEGylated nanoparticles. NANOSCALE 2021; 13:5344-5355. [PMID: 33660726 DOI: 10.1039/d0nr08294e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Polyethylene glycol grafting has played a central role in preparing the surfaces of nano-probes for biological interaction, to extend blood circulation times and to modulate protein recognition and cellular uptake. However, the role of PEG graft dynamics and conformation in determining surface recognition processes is poorly understood primarily due to the absence of a microscopic picture of the surface presentation of the polymer. Here a detailed NMR analysis reveals three types of dynamic ethylene glycol units on PEG-grafted SiO2 nanoparticles (NPs) of the type commonly evaluated as long-circulating theranostic nano-probes; a narrow fraction with fast dynamics associated with the chain ends; a broadened fraction spectrally overlapped with the former arising from those parts of the chain experiencing some dynamic restriction; and a fraction too broad to be observed in the spectrum arising from units closer to the surface/graft which undergo slow motion on the NMR timescale. We demonstrate that ethylene glycol units transition between fractions as a function of temperature, core size, PEG chain length and surface coverage and demonstrate how this distribution affects colloidal stability and protein uptake. The implications of the findings for biological application of grafted nanoparticles are discussed in the context of accepted models for surface ligand conformation.
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Affiliation(s)
- Delyan R Hristov
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Dublin, Republic of Ireland
| | - Hender Lopez
- School of Physics & Optometric & Clinical Sciences, Technological University Dublin, City Campus, Kevin Street, Dublin 8, Republic of Ireland
| | - Yannick Ortin
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Republic of Ireland.
| | - Kate O'Sullivan
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Republic of Ireland.
| | - Kenneth A Dawson
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Dublin, Republic of Ireland
| | - Dermot F Brougham
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Republic of Ireland.
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13
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Sun Y, Davis E. Nanoplatforms for Targeted Stimuli-Responsive Drug Delivery: A Review of Platform Materials and Stimuli-Responsive Release and Targeting Mechanisms. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:746. [PMID: 33809633 PMCID: PMC8000772 DOI: 10.3390/nano11030746] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 12/12/2022]
Abstract
To achieve the promise of stimuli-responsive drug delivery systems for the treatment of cancer, they should (1) avoid premature clearance; (2) accumulate in tumors and undergo endocytosis by cancer cells; and (3) exhibit appropriate stimuli-responsive release of the payload. It is challenging to address all of these requirements simultaneously. However, the numerous proof-of-concept studies addressing one or more of these requirements reported every year have dramatically expanded the toolbox available for the design of drug delivery systems. This review highlights recent advances in the targeting and stimuli-responsiveness of drug delivery systems. It begins with a discussion of nanocarrier types and an overview of the factors influencing nanocarrier biodistribution. On-demand release strategies and their application to each type of nanocarrier are reviewed, including both endogenous and exogenous stimuli. Recent developments in stimuli-responsive targeting strategies are also discussed. The remaining challenges and prospective solutions in the field are discussed throughout the review, which is intended to assist researchers in overcoming interdisciplinary knowledge barriers and increase the speed of development. This review presents a nanocarrier-based drug delivery systems toolbox that enables the application of techniques across platforms and inspires researchers with interdisciplinary information to boost the development of multifunctional therapeutic nanoplatforms for cancer therapy.
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Affiliation(s)
| | - Edward Davis
- Materials Engineering Program, Mechanical Engineering Department, Auburn University, 101 Wilmore Drive, Auburn, AL 36830, USA;
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14
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Hiebner DW, Barros C, Quinn L, Vitale S, Casey E. Surface functionalization-dependent localization and affinity of SiO 2 nanoparticles within the biofilm EPS matrix. Biofilm 2020; 2:100029. [PMID: 33447814 PMCID: PMC7798476 DOI: 10.1016/j.bioflm.2020.100029] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 05/21/2020] [Accepted: 05/28/2020] [Indexed: 11/30/2022] Open
Abstract
The contribution of the biofilm extracellular polymeric substance (EPS) matrix to reduced antimicrobial susceptibility in biofilms is widely recognised. As such, the direct targeting of the EPS matrix is a promising biofilm control strategy that allows for the disruption of the matrix, thereby allowing a subsequent increase in susceptibility to antimicrobial agents. To this end, surface-functionalized nanoparticles (NPs) have received considerable attention. However, the fundamental understanding of the interactions occurring between engineered NPs and the biofilm EPS matrix has not yet been fully elucidated. An insight into the underlying mechanisms involved when a NP interacts with the EPS matrix will aid in the design of more efficient NPs for biofilm control. Here we demonstrate the use of highly specific fluorescent probes in confocal laser scanning microscopy (CLSM) to illustrate the distribution of EPS macromolecules within the biofilm. Thereafter, a three-dimensional (3D) colocalization analysis was used to assess the affinity of differently functionalized silica NPs (SiNPs) and EPS macromolecules from Pseudomonas fluorescens biofilms. Results show that both the charge and surface functional groups of SiNPs dramatically affected the extent to which SiNPs interacted and localized with EPS macromolecules, including proteins, polysaccharides and DNA. Hypotheses are also presented about the possible physicochemical interactions which may be dominant in EPS matrix-NP interactions. This research not only develops an innovative CLSM-based methodology for elucidating biofilm-nanoparticle interactions but also provides a platform on which to build more efficient NP systems for biofilm control.
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Affiliation(s)
- Dishon Wayne Hiebner
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Caio Barros
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Laura Quinn
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Stefania Vitale
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Eoin Casey
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
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15
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Fulaz S, Devlin H, Vitale S, Quinn L, O'Gara JP, Casey E. Tailoring Nanoparticle-Biofilm Interactions to Increase the Efficacy of Antimicrobial Agents Against Staphylococcus aureus. Int J Nanomedicine 2020; 15:4779-4791. [PMID: 32753866 PMCID: PMC7354952 DOI: 10.2147/ijn.s256227] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 05/09/2020] [Indexed: 12/20/2022] Open
Abstract
Background Considering the timeline required for the development of novel antimicrobial drugs, increased attention should be given to repurposing old drugs and improving antimicrobial efficacy, particularly for chronic infections associated with biofilms. Methicillin-susceptible Staphylococcus aureus (MSSA) and methicillin-resistant S. aureus (MRSA) are common causes of biofilm-associated infections but produce different biofilm matrices. MSSA biofilm cells are typically embedded in an extracellular polysaccharide matrix, whereas MRSA biofilms comprise predominantly of surface proteins and extracellular DNA (eDNA). Nanoparticles (NPs) have the potential to enhance the delivery of antimicrobial agents into biofilms. However, the mechanisms which influence the interactions between NPs and the biofilm matrix are not yet fully understood. Methods To investigate the influence of NPs surface chemistry on vancomycin (VAN) encapsulation and NP entrapment in MRSA and MSSA biofilms, mesoporous silica nanoparticles (MSNs) with different surface functionalization (bare-B, amine-D, carboxyl-C, aromatic-A) were synthesised using an adapted Stöber method. The antibacterial efficacy of VAN-loaded MSNs was assessed against MRSA and MSSA biofilms. Results The two negatively charged MSNs (MSN-B and MSN-C) showed a higher VAN loading in comparison to the positively charged MSNs (MSN-D and MSN-A). Cellular binding with MSN suspensions (0.25 mg mL−1) correlated with the reduced viability of both MSSA and MRSA biofilm cells. This allowed the administration of low MSNs concentrations while maintaining a high local concentration of the antibiotic surrounding the bacterial cells. Conclusion Our data suggest that by tailoring the surface functionalization of MSNs, enhanced bacterial cell targeting can be achieved, leading to a novel treatment strategy for biofilm infections.
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Affiliation(s)
- Stephanie Fulaz
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Dublin, Ireland
| | - Henry Devlin
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Dublin, Ireland
| | - Stefania Vitale
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Dublin, Ireland
| | - Laura Quinn
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Dublin, Ireland
| | - James P O'Gara
- Department of Microbiology, School of Natural Sciences, National University of Ireland, Galway, Ireland
| | - Eoin Casey
- UCD School of Chemical and Bioprocess Engineering, University College Dublin, Dublin, Ireland
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16
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Devlin H, Hiebner D, Barros C, Fulaz S, Quinn L, Vitale S, Casey E. A high throughput method to investigate nanoparticle entrapment efficiencies in biofilms. Colloids Surf B Biointerfaces 2020; 193:111123. [PMID: 32450504 DOI: 10.1016/j.colsurfb.2020.111123] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/23/2020] [Accepted: 05/07/2020] [Indexed: 01/30/2023]
Abstract
The commercial use of nanoparticles has increased in recent years due to their unique characteristics, including high surface area, modifiable shape and surface charge and size-dependent properties. Consequently, a greater number of nanomaterials are now being released into the environment and inevitably interact with the natural ecosystem. Bacterial biofilms have the potential to capture and retain nanoparticles, however the factors determining the specific nanoparticle entrapment efficiencies of biofilms are not yet fully understood. Based on fluorescent intensity measurements we developed a simple and straightforward method that allowed the entrapment of different silica nanoparticles by two Pseudomonas strains to be quantified. It was determined that, regardless of nanoparticle size or surface functionalisation, Pseudomonas putida biofilms showed enhanced entrapment efficiencies compared to Pseudomonas fluorescens biofilms. It was also noted that both biofilms showed a higher entrapment capacity towards positively charged NPs. The method developed has the potential to be utilized for high throughput biofilm screening studies in order to develop a new understating of the relationship between nanoparticle characteristics and its uptake by bacterial biofilms.
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Affiliation(s)
- Henry Devlin
- School of Chemical and Bioprocess Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Dishon Hiebner
- School of Chemical and Bioprocess Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Caio Barros
- School of Chemical and Bioprocess Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Stephanie Fulaz
- School of Chemical and Bioprocess Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Laura Quinn
- School of Chemical and Bioprocess Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Stefania Vitale
- School of Chemical and Bioprocess Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Eoin Casey
- School of Chemical and Bioprocess Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland.
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17
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Barros CHN, Devlin H, Hiebner DW, Vitale S, Quinn L, Casey E. Enhancing curcumin's solubility and antibiofilm activity via silica surface modification. NANOSCALE ADVANCES 2020; 2:1694-1708. [PMID: 36132306 PMCID: PMC9418611 DOI: 10.1039/d0na00041h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/19/2020] [Indexed: 06/15/2023]
Abstract
Bacterial biofilms are microbial communities in which bacterial cells in sessile state are mechanically and chemically protected against foreign agents, thus enhancing antibiotic resistance. The delivery of active compounds to the inside of biofilms is often hindered due to the existence of the biofilm extracellular polymeric substances (EPS) and to the poor solubility of drugs and antibiotics. A possible strategy to overcome the EPS barrier is the incorporation of antimicrobial agents into a nanocarrier, able to penetrate the matrix and deliver the active substance to the cells. Here, we report the synthesis of antimicrobial curcumin-conjugated silica nanoparticles (curc-NPs) as a possibility for dealing with these issues. Curcumin is a known antimicrobial agent and to overcome its low solubility in water it was grafted onto the surface of silica nanoparticles, the latter functioning as nanocarrier for curcumin into the biofilm. Curc-NPs were able to impede the formation of model P. putida biofilms up to 50% and disrupt mature biofilms up to 54% at 2.5 mg mL-1. Cell viability of sessile cells in both cases was also considerably affected, which is not observed for curcumin delivered as a free compound at the same concentration. Furthermore, proteomics of extracted EPS matrix of biofilms grown in the presence of free curcumin and curc-NPs revealed differences in the expression of key proteins related to cell detoxification and energy production. Therefore, curc-NPs are presented here as an alternative for curcumin delivery that can be exploited not only to other bacterial strains but also to further biological applications.
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Affiliation(s)
- Caio H N Barros
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Henry Devlin
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Dishon W Hiebner
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Stefania Vitale
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Laura Quinn
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
| | - Eoin Casey
- School of Chemical and Bioprocess Engineering, University College Dublin Ireland
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18
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Kunc F, Kodra O, Brinkmann A, Lopinski GP, Johnston LJ. A Multi-Method Approach for Quantification of Surface Coatings on Commercial Zinc Oxide Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E678. [PMID: 32260261 PMCID: PMC7221730 DOI: 10.3390/nano10040678] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/25/2020] [Accepted: 03/29/2020] [Indexed: 01/24/2023]
Abstract
Surface functionalization is a key factor for determining the performance of nanomaterials in a range of applications and their fate when released to the environment. Nevertheless, it is still relatively rare that surface groups or coatings are quantified using methods that have been carefully optimized and validated with a multi-method approach. We have quantified the surface groups on a set of commercial ZnO nanoparticles modified with three different reagents ((3-aminopropyl)-triethoxysilane, caprylsilane and stearic acid). This study used thermogravimetric analysis (TGA) with Fourier transform infrared spectroscopy (FT-IR) of evolved gases and quantitative solution 1H nuclear magnetic resonance (NMR) for quantification purposes with 13C-solid state NMR and X-ray photoelectron spectroscopy to confirm assignments. Unmodified materials from the same suppliers were examined to assess possible impurities and corrections. The results demonstrate that there are significant mass losses from the unmodified samples which are attributed to surface carbonates or residual materials from the synthetic procedure used. The surface modified materials show a characteristic loss of functional group between 300-600 °C as confirmed by analysis of FT-IR spectra and comparison to NMR data obtained after quantitative release/extraction of the functional group from the surface. The agreement between NMR and TGA estimates for surface loading is reasonably good for cases where the functional group accounts for a relatively large fraction of the sample mass (e.g., large groups or high loading). In other cases TGA does not have sufficient sensitivity for quantitative analysis, particularly when contaminants contribute to the TGA mass loss. X-ray photoelectron spectroscopy and solid state NMR for selected samples provide support for the assignment of both the functional groups and some impurities. The level of surface group loading varies significantly with supplier and even for different batches or sizes of nanoparticles from the same supplier. These results highlight the importance of developing reliable methods to detect and quantify surface functional groups and the importance of a multi-method approach.
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Affiliation(s)
| | | | | | - Gregory P. Lopinski
- National Research Council Canada, Ottawa, ON K1A 0R6, Canada; (F.K.); (O.K.); (A.B.)
| | - Linda J. Johnston
- National Research Council Canada, Ottawa, ON K1A 0R6, Canada; (F.K.); (O.K.); (A.B.)
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19
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Gubala V, Giovannini G, Kunc F, Monopoli MP, Moore CJ. Dye-doped silica nanoparticles: synthesis, surface chemistry and bioapplications. Cancer Nanotechnol 2020. [DOI: 10.1186/s12645-019-0056-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Abstract
Background
Fluorescent silica nanoparticles have been extensively utilised in a broad range of biological applications and are facilitated by their predictable, well-understood, flexible chemistry and apparent biocompatibility. The ability to couple various siloxane precursors with fluorescent dyes and to be subsequently incorporated into silica nanoparticles has made it possible to engineer these fluorophores-doped nanomaterials to specific optical requirements in biological experimentation. Consequently, this class of nanomaterial has been used in applications across immunodiagnostics, drug delivery and human-trial bioimaging in cancer research.
Main body
This review summarises the state-of-the-art of the use of dye-doped silica nanoparticles in bioapplications and firstly accounts for the common nanoparticle synthesis methods, surface modification approaches and different bioconjugation strategies employed to generate biomolecule-coated nanoparticles. The use of dye-doped silica nanoparticles in immunoassays/biosensing, bioimaging and drug delivery is then provided and possible future directions in the field are highlighted. Other non-cancer-related applications involving silica nanoparticles are also briefly discussed. Importantly, the impact of how the protein corona has changed our understanding of NP interactions with biological systems is described, as well as demonstrations of its capacity to be favourably manipulated.
Conclusions
Dye-doped silica nanoparticles have found success in the immunodiagnostics domain and have also shown promise as bioimaging agents in human clinical trials. Their use in cancer delivery has been restricted to murine models, as has been the case for the vast majority of nanomaterials intended for cancer therapy. This is hampered by the need for more human-like disease models and the lack of standardisation towards assessing nanoparticle toxicity. However, developments in the manipulation of the protein corona have improved the understanding of fundamental bio–nano interactions, and will undoubtedly assist in the translation of silica nanoparticles for disease treatment to the clinic.
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20
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Naidu PSR, Denham E, Bartlett CA, McGonigle T, Taylor NL, Norret M, Smith NM, Dunlop SA, Iyer KS, Fitzgerald M. Protein corona formation moderates the release kinetics of ion channel antagonists from transferrin-functionalized polymeric nanoparticles. RSC Adv 2020; 10:2856-2869. [PMID: 35496130 PMCID: PMC9048831 DOI: 10.1039/c9ra09523c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 12/25/2019] [Indexed: 11/21/2022] Open
Abstract
Transferrin (Tf)-functionalized p(HEMA-ran-GMA) nanoparticles were designed to incorporate and release a water-soluble combination of three ion channel antagonists, namely zonampanel monohydrate (YM872), oxidized adenosine triphosphate (oxATP) and lomerizine hydrochloride (LOM) identified as a promising therapy for secondary degeneration that follows neurotrauma. Coupled with a mean hydrodynamic size of 285 nm and near-neutral surface charge of −5.98 mV, the hydrophilic nature of the functionalized polymeric nanoparticles was pivotal in effectively encapsulating the highly water soluble YM872 and oxATP, as well as lipophilic LOM dissolved in water-based medium, by a back-filling method. Maximum loading efficiencies of 11.8 ± 1.05% (w/w), 13.9 ± 1.50% (w/w) and 22.7 ± 4.00% (w/w) LOM, YM872 and oxATP respectively were reported. To obtain an estimate of drug exposure in vivo, drug release kinetics assessment by HPLC was conducted in representative physiological milieu containing 55% (v/v) human serum at 37 °C. In comparison to serum-free conditions, it was demonstrated that the inevitable adsorption of serum proteins on the Tf-functionalized nanoparticle surface as a protein corona impeded the rate of release of LOM and YM872 at both pH 5 and 7.4 over a period of 1 hour. While the release of oxATP from the nanoparticles was detectable for up to 30 minutes under serum-free conditions at pH 7.4, the presence of serum proteins and a slightly acidic environment impaired the detection of the drug, possibly due to its molecular instability. Nevertheless, under representative physiological conditions, all three drugs were released in combination from Tf-functionalized p(HEMA-ran-GMA) nanoparticles and detected for up to 20 minutes. Taken together, the study provided enhanced insight into potential physiological outcomes in the presence of serum proteins, and suggests that p(HEMA-ran-GMA)-based therapeutic nanoparticles may be promising drug delivery vehicles for CNS therapy. Transferrin (Tf)-functionalized p(HEMA-ran-GMA) nanoparticles were designed to incorporate and release a water-soluble combination of three ion channel antagonists, identified as a promising therapy for secondary degeneration following neurotrauma.![]()
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Affiliation(s)
- Priya S. R. Naidu
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Eleanor Denham
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
| | - Carole A. Bartlett
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
| | - Terry McGonigle
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
| | - Nicolas L. Taylor
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
- Australian Research Council Centre of Excellence in Plant Energy Biology
| | - Marck Norret
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Nicole. M. Smith
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Sarah A. Dunlop
- School of Biological Sciences
- The University of Western Australia
- Crawley
- Australia
| | - K. Swaminathan Iyer
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Melinda Fitzgerald
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
- School of Biological Sciences
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21
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Cagliani R, Gatto F, Cibecchini G, Marotta R, Catalano F, Sanchez-Moreno P, Pompa PP, Bardi G. CXCL5 Modified Nanoparticle Surface Improves CXCR2 + Cell Selective Internalization. Cells 2019; 9:cells9010056. [PMID: 31878341 PMCID: PMC7016632 DOI: 10.3390/cells9010056] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/17/2019] [Accepted: 12/24/2019] [Indexed: 12/15/2022] Open
Abstract
Driving nanomaterials to specific cell populations is still a major challenge for different biomedical applications. Several strategies to improve cell binding and uptake have been tried thus far by intrinsic material modifications or decoration with active molecules onto their surface. In the present work, we covalently bound the chemokine CXCL5 on fluorescently labeled amino-functionalized SiO2 nanoparticles to precisely targeting CXCR2+ immune cells. We synthesized and precisely characterized the physicochemical features of the modified particles. The presence of CXCL5 on the surface was detected by z-potential variation and CXCL5-specific electron microscopy immunogold labeling. CXCL5-amino SiO2 nanoparticle cell binding and internalization performances were analyzed in CXCR2+ THP-1 cells by flow cytometry and confocal microscopy. We showed improved internalization of the chemokine modified particles in the absence or the presence of serum. This internalization was reduced by cell pre-treatment with free CXCL5. Furthermore, we demonstrated CXCR2+ cell preferential targeting by comparing particle uptake in THP-1 vs. low-CXCR2 expressing HeLa cells. Our results provide the proof of principle that chemokine decorated nanomaterials enhance uptake and allow precise cell subset localization. The possibility to aim at selective chemokine receptor-expressing cells can be beneficial for the diverse pathological conditions involving immune reactions.
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Affiliation(s)
- Roberta Cagliani
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.C.); (F.G.); (G.C.); (P.S.-M.); (P.P.P.)
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Francesca Gatto
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.C.); (F.G.); (G.C.); (P.S.-M.); (P.P.P.)
| | - Giulia Cibecchini
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.C.); (F.G.); (G.C.); (P.S.-M.); (P.P.P.)
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Roberto Marotta
- Electron Microscopy Laboratory, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.M.); (F.C.)
| | - Federico Catalano
- Electron Microscopy Laboratory, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.M.); (F.C.)
| | - Paola Sanchez-Moreno
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.C.); (F.G.); (G.C.); (P.S.-M.); (P.P.P.)
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.C.); (F.G.); (G.C.); (P.S.-M.); (P.P.P.)
| | - Giuseppe Bardi
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (R.C.); (F.G.); (G.C.); (P.S.-M.); (P.P.P.)
- Correspondence: ; Tel.: +39-010-2896519
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22
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Kunc F, Balhara V, Sun Y, Daroszewska M, Jakubek ZJ, Hill M, Brinkmann A, Johnston LJ. Quantification of surface functional groups on silica nanoparticles: comparison of thermogravimetric analysis and quantitative NMR. Analyst 2019; 144:5589-5599. [PMID: 31418443 DOI: 10.1039/c9an01080g] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Thermogravimetric analysis (TGA) coupled with evolved gas analysis-FT-IR has been examined as a potential method to study the functional group content for surface modified silica nanoparticles. A comparison with a quantitative solution NMR method based on analysis of groups released after dissolution of the silica matrix is used to provide benchmark data for comparison and to assess the utility and limitations of TGA. This study focused primarily on commercially available silicas and tested whether it was possible to use a correction based on bare silica to account for the significant mass loss that occurs due to condensation of surface hydroxyl groups and loss of matrix-entrapped components at temperatures above ∼200 °C. Although this approach has been used successfully in the literature for in-house prepared samples, it was problematic for commercial silicas prepared by the Stöber method. For these materials the agreement between estimates from qNMR and TGA mass loss was poor in many cases. However much better agreement was observed for samples for which the mass loss above 200 °C is relatively low, such as non-porous silica, or samples for which the mass fraction of functional group is large (e.g., high molecule weight groups or multilayers). FT-IR was useful in identifying the likely structure of the components lost from the surface at various temperatures and in some cases provided evidence of contaminants in the sample. Nevertheless, in other cases correlation of thermograms and FT-IR with NMR data was necessary, particularly for samples where multi-step modification of the silica surface results in incomplete functionalization that gives a mixture of products. Overall the results indicate that TGA provides reliable results for silicas of low porosity or those for which the functional group accounts for a significant fraction of the total sample mass. It is also suitable as a supplementary or screening technique to indicate the presence of coatings or covalent surface modification, prior to applying other techniques or for routine analyses where sensitivity is not critical.
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Affiliation(s)
- Filip Kunc
- National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada.
| | - Vinod Balhara
- National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada.
| | - Ying Sun
- National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada.
| | | | | | - Myriam Hill
- New Substances Assessment & Control Bureau, Health Canada, Ottawa, Ontario K1A 0K9, Canada
| | | | - Linda J Johnston
- National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada.
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23
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Li J, Pylypchuk I, Johansson DP, Kessler VG, Seisenbaeva GA, Langton M. Self-assembly of plant protein fibrils interacting with superparamagnetic iron oxide nanoparticles. Sci Rep 2019; 9:8939. [PMID: 31222107 PMCID: PMC6586877 DOI: 10.1038/s41598-019-45437-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 06/05/2019] [Indexed: 11/09/2022] Open
Abstract
In situ fibrillation of plant proteins in presence of the superparamagnetic iron oxide nanoparticles (NP) promoted formation of a hybrid nanocomposite. The morphology of NP-fibril composite was revealed using ex-situ atomic force microscopy (AFM) in air. The NP-fibrils were associated into extended multi-fibril structures, indicating that the addition of NPs promoted protein association via β-sheet assembly. Real-time movement of NPs attached to fibrils under an external magnetic field was visualized using in-situ AFM in liquid, revealing that composite structures were stable at low pH, and displaying dipolar property of the NPs in the composite at high pH. Changes in magnetic properties of NPs when interacting with protein fibrils were quantitatively mapped using magnetic force microscopy (MFM). The magnetic moment of the NPs in composite was increased by co-existing with protein at low pH, while their dipolar nature was maintained at high pH. Self-assembly of the protein into fibrils is accelerated with increasing NP concentration within an optimal range, which is attributed to a fibrillation-competent conformation of the peptides. The latter was explained by the formation of favorable hydrogen bonds, electrostatic interactions, and efficient surface energy transfer between NPs and proteins.
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Affiliation(s)
- Jing Li
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden.
| | - Ievgen Pylypchuk
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden
| | - Daniel P Johansson
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden
| | - Vadim G Kessler
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden
| | - Gulaim A Seisenbaeva
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden.
| | - Maud Langton
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden.
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24
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Sun Y, Kunc F, Balhara V, Coleman B, Kodra O, Raza M, Chen M, Brinkmann A, Lopinski GP, Johnston LJ. Quantification of amine functional groups on silica nanoparticles: a multi-method approach. NANOSCALE ADVANCES 2019; 1:1598-1607. [PMID: 36132607 PMCID: PMC9417554 DOI: 10.1039/c9na00016j] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 02/21/2019] [Indexed: 05/08/2023]
Abstract
Surface chemistry is an important factor for quality control during production of nanomaterials and for controlling their behavior in applications and when released into the environment. Here we report a comparison of four methods for quantifying amine functional groups on silica nanoparticles (NPs). Two colorimetric assays are examined, ninhydrin and 4-nitrobenzaldehyde, which are convenient for routine analysis and report on reagent accessible amines. Results from the study of a range of commercial NPs with different sizes and surface loadings show that the assays account for 50-100% of the total amine content, as determined by dissolution of NPs under basic conditions and quantification by solution-state 1H NMR. To validate the surface quantification by the colorimetric assays, the NPs are modified with a trifluoromethylated benzaldehyde probe to enhance sensitivity for quantitative 19F solid state NMR and X-ray photoelectron spectroscopy (XPS). Good agreement between the assays and the determination from solid-state NMR is reinforced by elemental ratios from XPS, which indicate that in most cases the difference between total and accessible amine content reflects amines that are outside the depth probed by XPS. Overall the combined results serve to validate the relatively simple colorimetric assays and indicate that the reactions are efficient at quantifying surface amines, by contrast to some other covalent modifications that have been employed for functional group quantification.
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Affiliation(s)
- Ying Sun
- National Research Council Canada Ottawa ON Canada K1A 0R6
| | - Filip Kunc
- National Research Council Canada Ottawa ON Canada K1A 0R6
| | - Vinod Balhara
- National Research Council Canada Ottawa ON Canada K1A 0R6
| | - Brian Coleman
- National Research Council Canada Ottawa ON Canada K1A 0R6
| | - Oltion Kodra
- National Research Council Canada Ottawa ON Canada K1A 0R6
| | - Mohammad Raza
- National Research Council Canada Ottawa ON Canada K1A 0R6
| | - Maohui Chen
- National Research Council Canada Ottawa ON Canada K1A 0R6
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25
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Ligand density on nanoparticles: A parameter with critical impact on nanomedicine. Adv Drug Deliv Rev 2019; 143:22-36. [PMID: 31158406 DOI: 10.1016/j.addr.2019.05.010] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/25/2019] [Accepted: 05/29/2019] [Indexed: 12/19/2022]
Abstract
Nanoparticles modified with ligands for specific targeting towards receptors expressed on the surface of target cells are discussed in literature towards improved delivery strategies. In such concepts the ligand density on the surface of the nanoparticles plays an important role. How many ligands per nanoparticle are best for the most efficient delivery? Importantly, this number may be different for in vitro and in vivo scenarios. In this review first viruses as "biological" nanoparticles are analyzed towards their ligand density, which is then compared to the ligand density of engineered nanoparticles. Then, experiments are reviewed in which in vitro and in vivo nanoparticle delivery has been analyzed in terms of ligand density. These results help to understand which ligand densities should be attempted for better targeting. Finally synthetic methods for controlling the ligand density of nanoparticles are described.
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Yong KW, Yuen D, Chen MZ, Porter CJH, Johnston APR. Pointing in the Right Direction: Controlling the Orientation of Proteins on Nanoparticles Improves Targeting Efficiency. NANO LETTERS 2019; 19:1827-1831. [PMID: 30773887 DOI: 10.1021/acs.nanolett.8b04916] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Protein-conjugated nanoparticles have the potential to precisely deliver therapeutics to target sites in the body by specifically binding to cell surface receptors. To maximize targeting efficiency, the three-dimensional presentation of ligands toward these receptors is crucial. Herein, we demonstrate significantly enhanced targeting of nanoparticles to cancer cells by controlling the protein orientation on the nanoparticle surface. To engineer the point of attachment, we used amber codon reassignment to incorporate a synthetic amino acid, p-azidophenylalanine (azPhe), at specific locations within a single domain antibody (sdAb or nanobody) that recognizes the human epidermal growth factor receptor (EGFR). The azPhe modified sdAb can be tethered to the nanoparticle in a specific orientation using a bioorthogonal click reaction with a strained cyclooctyne. The crystal structure of the sdAb bound to EGFR was used to rationally select sites likely to optimally display the sdAb upon conjugation to a fluorescent nanocrystal (Qdot). Qdots with sdAb attached at the azPhe13 position showed 6 times greater binding affinity to EGFR expressing A549 cells, compared to Qdots with conventionally (succinimidyl ester) conjugated sdAb. As ligand-targeted delivery systems move toward clinical application, this work shows that nanoparticle targeting can be optimized by engineering the site of protein conjugation.
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Affiliation(s)
- Ken W Yong
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , Victoria 3052 , Australia
| | - Daniel Yuen
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , Victoria 3052 , Australia
| | - Moore Z Chen
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , Victoria 3052 , Australia
| | - Christopher J H Porter
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , Victoria 3052 , Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash University , Parkville , Victoria 3052 , Australia
| | - Angus P R Johnston
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , Victoria 3052 , Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash University , Parkville , Victoria 3052 , Australia
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Vedhanayagam M, Nair BU, Sreeram KJ. Effect of functionalized gold nanoparticle on collagen stabilization for tissue engineering application. Int J Biol Macromol 2019; 123:1211-1220. [DOI: 10.1016/j.ijbiomac.2018.11.179] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/25/2018] [Accepted: 11/18/2018] [Indexed: 02/07/2023]
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28
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Hristov DR, Rodriguez-Quijada C, Gomez-Marquez J, Hamad-Schifferli K. Designing Paper-Based Immunoassays for Biomedical Applications. SENSORS (BASEL, SWITZERLAND) 2019; 19:E554. [PMID: 30699964 PMCID: PMC6387326 DOI: 10.3390/s19030554] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/14/2019] [Accepted: 01/21/2019] [Indexed: 12/18/2022]
Abstract
Paper-based sensors and assays have been highly attractive for numerous biological applications, including rapid diagnostics and assays for disease detection, food safety, and clinical care. In particular, the paper immunoassay has helped drive many applications in global health due to its low cost and simplicity of operation. This review is aimed at examining the fundamentals of the technology, as well as different implementations of paper-based assays and discuss novel strategies for improving their sensitivity, performance, or enabling new capabilities. These innovations can be categorized into using unique nanoparticle materials and structures for detection via different techniques, novel biological species for recognizing biomarkers, or innovative device design and/or architecture.
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Affiliation(s)
- Delyan R Hristov
- Department of Engineering, University of Massachusetts, Boston, MA 02125, USA.
| | | | - Jose Gomez-Marquez
- Little Devices Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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Tallec K, Huvet A, Di Poi C, González-Fernández C, Lambert C, Petton B, Le Goïc N, Berchel M, Soudant P, Paul-Pont I. Nanoplastics impaired oyster free living stages, gametes and embryos. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:1226-1235. [PMID: 30118910 DOI: 10.1016/j.envpol.2018.08.020] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/05/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
In the marine environment, most bivalve species base their reproduction on external fertilization. Hence, gametes and young stages face many threats, including exposure to plastic wastes which represent more than 80% of the debris in the oceans. Recently, evidence has been produced on the presence of nanoplastics in oceans, thus motivating new studies of their impacts on marine life. Because no information is available about their environmental concentrations, we performed dose-response exposure experiments with polystyrene particles to assess the extent of micro/nanoplastic toxicity. Effects of polystyrene with different sizes and functionalizations (plain 2-μm, 500-nm and 50-nm; COOH-50 nm and NH2-50 nm) were assessed on three key reproductive steps (fertilization, embryogenesis and metamorphosis) of Pacific oysters (Crassostrea gigas). Nanoplastics induced a significant decrease in fertilization success and in embryo-larval development with numerous malformations up to total developmental arrest. The NH2-50 beads had the strongest toxicity to both gametes (EC50 = 4.9 μg/mL) and embryos (EC50 = 0.15 μg/mL), showing functionalization-dependent toxicity. No effects of plain microplastics were recorded. These results highlight that exposures to nanoplastics may have deleterious effects on planktonic stages of oysters, presumably interacting with biological membranes and causing cyto/genotoxicity with potentially drastic consequences for their reproductive success.
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Affiliation(s)
- Kevin Tallec
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 UBO/CNRS/IRD/Ifremer, CS 10070, 29280, Plouzané, France.
| | - Arnaud Huvet
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 UBO/CNRS/IRD/Ifremer, CS 10070, 29280, Plouzané, France
| | - Carole Di Poi
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 UBO/CNRS/IRD/Ifremer, CS 10070, 29280, Plouzané, France
| | - Carmen González-Fernández
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer - Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise - Rue Dumont d'Urville, 29280, Plouzané, France
| | - Christophe Lambert
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer - Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise - Rue Dumont d'Urville, 29280, Plouzané, France
| | - Bruno Petton
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 UBO/CNRS/IRD/Ifremer, CS 10070, 29280, Plouzané, France
| | - Nelly Le Goïc
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer - Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise - Rue Dumont d'Urville, 29280, Plouzané, France
| | - Mathieu Berchel
- Université de Brest, Université Européenne de Bretagne, CNRS UMR 6521, CEMCA, IFR 148 ScInBios, 6 Avenue Victor Le Gorgeu, 29238, Brest, France
| | - Philippe Soudant
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer - Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise - Rue Dumont d'Urville, 29280, Plouzané, France
| | - Ika Paul-Pont
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer - Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise - Rue Dumont d'Urville, 29280, Plouzané, France
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Lara S, Perez-Potti A. Applications of Nanomaterials for Immunosensing. BIOSENSORS-BASEL 2018; 8:bios8040104. [PMID: 30388865 PMCID: PMC6316038 DOI: 10.3390/bios8040104] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/24/2018] [Accepted: 10/29/2018] [Indexed: 12/28/2022]
Abstract
In biomedical science among several other growing fields, the detection of specific biological agents or biomolecular markers, from biological samples is crucial for early diagnosis and decision-making in terms of appropriate treatment, influencing survival rates. In this regard, immunosensors are based on specific antibody-antigen interactions, forming a stable immune complex. The antigen-specific detection antibodies (i.e., biomolecular recognition element) are generally immobilized on the nanomaterial surfaces and their interaction with the biomolecular markers or antigens produces a physico-chemical response that modulates the signal readout. Lowering the detection limits for particular biomolecules is one of the key parameters when designing immunosensors. Thus, their design by combining the specificity and versatility of antibodies with the intrinsic properties of nanomaterials offers a plethora of opportunities for clinical diagnosis. In this review, we show a comprehensive set of recent developments in the field of nanoimmunosensors and how they are progressing the detection and validation for a wide range of different biomarkers in multiple diseases and what are some drawbacks and considerations of the uses of such devices and their expansion.
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Affiliation(s)
- Sandra Lara
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, D04 V1W8 Dublin, Ireland.
| | - André Perez-Potti
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, D04 V1W8 Dublin, Ireland.
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Kunc F, Balhara V, Brinkmann A, Sun Y, Leek DM, Johnston LJ. Quantification and Stability Determination of Surface Amine Groups on Silica Nanoparticles Using Solution NMR. Anal Chem 2018; 90:13322-13330. [DOI: 10.1021/acs.analchem.8b02803] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Filip Kunc
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Vinod Balhara
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Andreas Brinkmann
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Ying Sun
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Donald M. Leek
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
| | - Linda J. Johnston
- National Research Council Canada, Metrology Research Centre, Ottawa, Ontario K1A 0R6, Canada
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Digiacomo L, Cardarelli F, Pozzi D, Palchetti S, Digman MA, Gratton E, Capriotti AL, Mahmoudi M, Caracciolo G. An apolipoprotein-enriched biomolecular corona switches the cellular uptake mechanism and trafficking pathway of lipid nanoparticles. NANOSCALE 2017; 9:17254-17262. [PMID: 29115333 PMCID: PMC5700750 DOI: 10.1039/c7nr06437c] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Following exposure to biological milieus (e.g. after systemic administration), nanoparticles (NPs) get covered by an outer biomolecular corona (BC) that defines many of their biological outcomes, such as the elicited immune response, biodistribution, and targeting abilities. In spite of this, the role of BC in regulating the cellular uptake and the subcellular trafficking properties of NPs has remained elusive. Here, we tackle this issue by employing multicomponent (MC) lipid NPs, human plasma (HP) and HeLa cells as models for nanoformulations, biological fluids, and target cells, respectively. By conducting confocal fluorescence microscopy experiments and image correlation analyses, we quantitatively demonstrate that the BC promotes a neat switch of the cell entry mechanism and subsequent intracellular trafficking, from macropinocytosis to clathrin-dependent endocytosis. Nano-liquid chromatography tandem mass spectrometry identifies apolipoproteins as the most abundant components of the BC tested here. Interestingly, this class of proteins target the LDL receptors, which are overexpressed in clathrin-enriched membrane domains. Our results highlight the crucial role of BC as an intrinsic trigger of specific NP-cell interactions and biological responses and set the basis for a rational exploitation of the BC for targeted delivery.
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Affiliation(s)
- L. Digiacomo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy
- Department of Bioscience and Biotechnology, University of Camerino, Via Gentile III da Varano, 62032 Camerino, (MC), Italy
| | - F. Cardarelli
- NEST, Istituto Nanoscienze, CNR and Scuola Normale Superiore, Piazza San Silvestro 12, Pisa, Italy
| | - D. Pozzi
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy
| | - S. Palchetti
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy
| | - M. A. Digman
- Laboratory for Fluorescence Dynamics, Biomedical Engineering Department, University of California Irvine, CA 92697, USA
| | - E. Gratton
- Laboratory for Fluorescence Dynamics, Biomedical Engineering Department, University of California Irvine, CA 92697, USA
| | - A. L. Capriotti
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - M. Mahmoudi
- Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 13169-43551, Iran
| | - G. Caracciolo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy
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Coty JB, Eleamen Oliveira E, Vauthier C. Tuning complement activation and pathway through controlled molecular architecture of dextran chains in nanoparticle corona. Int J Pharm 2017; 532:769-778. [DOI: 10.1016/j.ijpharm.2017.04.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 10/19/2022]
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Silvestri A, Di Silvio D, Llarena I, Murray RA, Marelli M, Lay L, Polito L, Moya SE. Influence of surface coating on the intracellular behaviour of gold nanoparticles: a fluorescence correlation spectroscopy study. NANOSCALE 2017; 9:14730-14739. [PMID: 28948261 DOI: 10.1039/c7nr04640e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In the biomedical applications of nanoparticles (NPs), the proper choice of surface chemistry is a crucial aspect in their design. The nature of the coating can heavily impact the interaction of NPs with biomolecules, affect the state of aggregation, and ultimately determine their biological fate. As such, protein corona formation and the aggregation behaviour of gold NPs (Au NPs) are studied here. Au NPs are prepared with four distinct surface functionalisations, namely mercaptosuccinic acid (MSA), N-4-thiobutyroil glucosamine, HS-PEG5000 and HS-alkyl-PEG600. Corona formation, aggregation, and the intracellular behaviour of the Au NPs are then investigated by means of Fluorescence Correlation Spectroscopy (FCS) in cell culture media and in live cells. To evaluate the state of aggregation and the formation of a protein corona, the Au NPs are incubated in cell media and the diffusion coefficient is determined via FCS. The in vitro behaviour is compared with the level of aggregation of the NPs in cells. Diffusion times of the NPs are estimated at different positions in the cell after a one hour incubation period. It is found that the majority of MSA and glucose-Au NPs are present inside the cell as slowly diffusing species with diffusion times (τD) greater than 6000 μs (hydrodynamic diameter >250 nm). PEGylated Au NPs adsorb a small amount of protein and manifest low agglomeration both in media and in living cells. In particular, the HS-alkyl-PEG600 coating shows an excellent correlation between lower protein adsorption, 4-fold lower compared to the MSA coated NPs, and limited intracellular aggregation. In the case of single HS-alkyl-PEG600 coated NPs, it is found that typical intracellular τD values range from 500 to 1500 μs, indicating that these particles display reduced aggregation in the intracellular environment.
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Affiliation(s)
- A Silvestri
- CNR - ISTM, Nanotechnology Lab., Via G. Fantoli 16/15, 20138, Milan, Italy.
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35
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Papi M, Caputo D, Palmieri V, Coppola R, Palchetti S, Bugli F, Martini C, Digiacomo L, Pozzi D, Caracciolo G. Clinically approved PEGylated nanoparticles are covered by a protein corona that boosts the uptake by cancer cells. NANOSCALE 2017; 9:10327-10334. [PMID: 28702661 DOI: 10.1039/c7nr03042h] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Today, liposomes are an advanced technology of drug carriers with a dozen drugs in clinical practice and many more in clinical trials. A bottleneck associated with the clinical translation of liposomes has long been 'opsonization', i.e. the adsorption of plasma proteins at the liposome surface resulting in their rapid clearance from circulation. For decades, the most popular way to avoid opsonization has been grafting polyethylene glycol (PEG) onto the liposome surface. Recent studies have clarified that grafting PEG onto the liposome surface reduces, but does not completely prevent protein binding. In this work, we employed dynamic light scattering, zeta-potential analysis, one-dimensional sodium dodecyl sulfate polyacrylamide gel electrophoresis (1D-SDS-PAGE), semi-quantitative densitometry and cell imaging to explore the bio-nano-interactions between human plasma (HP) and Onivyde, a PEGylated liposomal drug that has recently been approved by the Food and Drug Administration (FDA) for the treatment of metastatic pancreatic ductal adenocarcinoma (PDAC). To properly evaluate the role of PEGylation, an unPEGylated variant of Onivyde was used as a reference. Collectively, our findings suggest that: (i) although PEGylated, Onivyde is not "stealth" in HP; (ii) surface chemistry is more important than PEGylation in controlling the bio-nano-interactions between Onivyde and plasma components. Of note is that the PC was found to boost the cellular uptake of Onivyde in the pancreas ductal adenocarcinoma cell line (PANC-1) thus suggesting its prominent role in its indication for PDAC treatment. Relevant implications for drug delivery and drug design are discussed.
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Affiliation(s)
- M Papi
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - D Caputo
- University Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - V Palmieri
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - R Coppola
- University Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - S Palchetti
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy. and Istituti Fisioterapici Ospitalieri, Istituto Regina Elena, Via Elio Chianesi 53, 00144 Rome, Italy
| | - F Bugli
- Istituto di Microbiologia, Universitá Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - C Martini
- Istituto di Microbiologia, Universitá Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - L Digiacomo
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy. and Department of Bioscience and Biotechnology, University of Camerino, Via Gentile III da Varano, 62032 Camerino, MC, Italy
| | - D Pozzi
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy. and Istituti Fisioterapici Ospitalieri, Istituto Regina Elena, Via Elio Chianesi 53, 00144 Rome, Italy
| | - G Caracciolo
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy.
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Thomas SS, Coleman M, Carroll E, Polo E, Meder F, Dawson KA. Locating Reactive Groups on Nanomaterials with Gold Nanoclusters: Toward a Surface Reactive Site Map. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5086-5097. [PMID: 28463506 DOI: 10.1021/acs.langmuir.7b00952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanoparticles (NPs) are often functionalized with reactive groups such as amines and thiols for the subsequent conjugation of further molecules, e.g., stabilizing polymers, drugs, and proteins for targeting cells or specific diseases. In addition to the quantitative estimation of the reactive conjugation sites, their molecular positioning and nanoscale arrangement on single nanoparticles become more and more important for the tailored engineering and design of functional nanomaterials. Here, we use maleimide or sulfo-succinimidyl ester-modified 1.4 nm gold nanoclusters (AuNCs) to specifically label reactive thiol and amine groups with sub-2-nm precision on metal oxide and polymeric nanostructures. We confirm the binding of AuNCs by measuring and modeling sedimentation properties using analytical centrifugation, imaging their surface distribution and surface distances by transmission electron microscopy (TEM), and comparing the results to ensemble measurements of numbers of reactive surface groups obtained by common photometric assays. We map thiol and amine groups introduced on silica NPs (SiNPs), titania stars (Ti), silica inverse opals (SiOps), and polystyrene NPs (PS NPs). We show that the method is suitable for mapping local, clustered inhomogeneities of the reactive sites on single SiNPs introduced by masking certain areas during surface functionalization. Mapping precise positions of reactive surface groups is essential to the design and tailored ligation of multifunctional nanomaterials.
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Affiliation(s)
- Steffi S Thomas
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Belfield, Dublin 4, Ireland
| | - Matthew Coleman
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Belfield, Dublin 4, Ireland
| | - Emma Carroll
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Belfield, Dublin 4, Ireland
| | - Ester Polo
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Belfield, Dublin 4, Ireland
| | - Fabian Meder
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Belfield, Dublin 4, Ireland
| | - Kenneth A Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Belfield, Dublin 4, Ireland
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Hristov DR, Ye D, de Araújo JM, Ashcroft C, DiPaolo B, Hart R, Earhart C, Lopez H, Dawson KA. Using single nanoparticle tracking obtained by nanophotonic force microscopy to simultaneously characterize nanoparticle size distribution and nanoparticle-surface interactions. NANOSCALE 2017; 9:4524-4535. [PMID: 28317988 DOI: 10.1039/c6nr09331k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Comprehensive characterization of nanomaterials for medical applications is a challenging and complex task due to the multitude of parameters which need to be taken into consideration in a broad range of conditions. Routine methods such as dynamic light scattering or nanoparticle tracking analysis provide some insight into the physicochemical properties of particle dispersions. For nanomedicine applications the information they supply can be of limited use. For this reason, there is a need for new methodologies and instruments that can provide additional data on nanoparticle properties such as their interactions with surfaces. Nanophotonic force microscopy has been shown as a viable method for measuring the force between surfaces and individual particles in the nano-size range. Here we outline a further application of this technique to measure the size of single particles and based on these measurement build the distribution of a sample. We demonstrate its efficacy by comparing the size distribution obtained with nanophotonic force microscopy to established instruments, such as dynamic light scattering and differential centrifugal sedimentation. Our results were in good agreement to those observed with all other instruments. Furthermore, we demonstrate that the methodology developed in this work can be used to study complex particle mixtures and the surface alteration of materials. For all cases studied, we were able to obtain both the size and the interaction potential of the particles with a surface in a single measurement.
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Affiliation(s)
- Delyan R Hristov
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
| | - Dong Ye
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
| | - Joao Medeiros de Araújo
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland. and Departamento de Física, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
| | | | | | - Robert Hart
- Optofluidics, Inc., Philadelphia, PA 19104, USA
| | | | - Hender Lopez
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
| | - Kenneth A Dawson
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
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38
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Herda LM, Hristov DR, Lo Giudice MC, Polo E, Dawson KA. Mapping of Molecular Structure of the Nanoscale Surface in Bionanoparticles. J Am Chem Soc 2016; 139:111-114. [DOI: 10.1021/jacs.6b12297] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Luciana M. Herda
- Centre for BioNano Interactions,
School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Delyan R. Hristov
- Centre for BioNano Interactions,
School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Maria Cristina Lo Giudice
- Centre for BioNano Interactions,
School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Ester Polo
- Centre for BioNano Interactions,
School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kenneth A. Dawson
- Centre for BioNano Interactions,
School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
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Crucho CIC, Baleizão C, Farinha JPS. Functional Group Coverage and Conversion Quantification in Nanostructured Silica by 1H NMR. Anal Chem 2016; 89:681-687. [PMID: 28105822 DOI: 10.1021/acs.analchem.6b03117] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Silica nanostructured materials are important in many fields, including catalysis, imaging, and drug delivery, mainly due to the versatility of surface functionalization that can bestow a huge variety of chemical and physical properties. With most applications requiring precise control over this surface modification, characterization of surface composition and reactivity have become of extreme importance. We present a novel approach to track silica surface modification and quantify functional group coverage using only solution NMR. We test the method using different types of silica nanoparticles and surface modifications, to show that after dissolving the silica matrix, the 1H NMR spectra can be resolved for every single component of the mixture. By using an internal standard, we are able to quantify the density of ligands and follow their sequential modification. Our work presents a fast, accurate, and straightforward method for surface characterization of silica nanostructures, using widely available NMR spectroscopy and small amounts of sample.
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Affiliation(s)
- Carina I C Crucho
- CQFM, Centro de Química-Física Molecular, and IN, Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa , Lisboa, Portugal
| | - Carlos Baleizão
- CQFM, Centro de Química-Física Molecular, and IN, Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa , Lisboa, Portugal
| | - José Paulo S Farinha
- CQFM, Centro de Química-Física Molecular, and IN, Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, Universidade de Lisboa , Lisboa, Portugal
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Lo Giudice MC, Herda LM, Polo E, Dawson KA. In situ characterization of nanoparticle biomolecular interactions in complex biological media by flow cytometry. Nat Commun 2016; 7:13475. [PMID: 27845346 PMCID: PMC5116075 DOI: 10.1038/ncomms13475] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 10/06/2016] [Indexed: 12/13/2022] Open
Abstract
Nanoparticles interacting with, or derived from, living organisms are almost invariably coated in a variety of biomolecules presented in complex biological milieu, which produce a bio-interface or 'biomolecular corona' conferring a biological identity to the particle. Biomolecules at the surface of the nanoparticle-biomolecule complex present molecular fragments that may be recognized by receptors of cells or biological barriers, potentially engaging with different biological pathways. Here we demonstrate that using intense fluorescent reporter binders, in this case antibodies bound to quantum dots, we can map out the availability of such recognition fragments, allowing for a rapid and meaningful biological characterization. The application in microfluidic flow, in small detection volumes, with appropriate thresholding of the detection allows the study of even complex nanoparticles in realistic biological milieu, with the emerging prospect of making direct connection to conditions of cell level and in vivo experiments.
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Affiliation(s)
- Maria Cristina Lo Giudice
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Luciana M. Herda
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Ester Polo
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kenneth A. Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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Yu SM, Gonzalez-Moragas L, Milla M, Kolovou A, Santarella-Mellwig R, Schwab Y, Laromaine A, Roig A. Bio-identity and fate of albumin-coated SPIONs evaluated in cells and by the C. elegans model. Acta Biomater 2016; 43:348-357. [PMID: 27427227 DOI: 10.1016/j.actbio.2016.07.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/03/2016] [Accepted: 07/13/2016] [Indexed: 01/21/2023]
Abstract
UNLABELLED Nanoparticles which surface adsorb proteins in an uncontrolled and non-reproducible manner will have limited uses as nanomedicinal products. A promising approach to avoid nanoparticle non-specific interactions with proteins is to design bio-hybrids by purposely pre-forming a protein corona around the inorganic cores. Here, we investigate, in vitro and in vivo, the newly acquired bio-identity of superparamagnetic iron oxide nanoparticles (SPIONs) upon their functionalization with a pre-formed and well-defined bovine serum albumin (BSA) corona. Cellular uptake, intracellular particle distribution and cytotoxicity were studied in two cell lines: adherent and non-adherent cells. BSA decreases nanoparticle internalization in both cell lines and protects the iron core once they have been internalized. The physiological response to the nanoparticles is then in vivo evaluated by oral administration to Caenorhabditis elegans, which was selected as a model of a functional intestinal barrier. Nanoparticle biodistribution, at single particle resolution, is studied by transmission electron microscopy. The analysis reveals that the acidic intestinal environment partially digests uncoated SPIONs but does not affect BSA-coated ones. It also discloses that some particles could enter the nematode's enterocytes, likely by endocytosis which is a different pathway than the one described for the worm nutrients. STATEMENT OF SIGNIFICANCE Unravelling meaningful relationships between the physiological impact of engineered nanoparticles and their synthetic and biological identity is of vital importance when considering nanoparticles biomedical uses and when establishing their nanotoxicological profile. This study contributes to better comprehend the inorganic nanoparticles' behavior in real biological milieus. We synthesized a controlled pre-formed BSA protein corona on SPIONs to lower unspecific cell uptake and decrease nanoparticle fouling with other proteins. Such findings may be of relevance considering clinical translation and regulatory issues of inorganic nanoparticles. Moreover, we have advanced in the validation of C. elegans as a simple animal model for assessing biological responses of engineering nanomaterials. The physiological response of BSA coated SPIONs was evaluated in vivo after their oral administration to C. elegans. Analyzing ultra-thin cross-sections of the worms by TEM with single-particle precision, we could track NP biodistribution along the digestive tract and determine unambiguously their translocation through biological barriers and cell membranes.
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Das A, Adhikari C, Chakraborty A. Lipoplex-Mediated Deintercalation of Doxorubicin from Calf Thymus DNA-Doxorubicin Complex. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8889-8899. [PMID: 27465781 DOI: 10.1021/acs.langmuir.6b01860] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this paper, we report the lipoplex-mediated deintercalation of anticancer drug doxorubicin (DOX) from the DOX-DNA complex under controlled experimental conditions. We used three zwitterionic liposomes, namely, 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC), 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC), and 2-oleoyl-1-palmitoyl-sn-glycero-3-phosphocholine (POPC), which are widely different in their phase transition temperatures to form a lipoplex with calf thymus DNA in the presence of Ca(2+) ions. The study revealed that DPPC being in sol-gel phase was more effective in releasing the drug from the DOX-DNA complex compared with liposomes that remain in liquid crystalline phase (DMPC and POPC). The higher extent of drug release in the case of DPPC liposomes was attributed to the stronger lipoplex formation with DNA as compared with that of other liposomes. Owing to the relatively smaller head group area, the DPPC liposomes in their sol-gel phase can absorb a larger number of Ca(2+) ions and hence offer a strong electrostatic interaction with DNA. This interaction was confirmed by time-resolved anisotropy and circular dichroism spectroscopy. Apart from the electrostatic interaction, the possible hydrophobic interaction between the liposomes and DNA was also taken into account for the observed deintercalation. The successful uptake of drug molecules by liposomes from the drug-DNA complex in the post-release period was also confirmed using confocal laser scanning microscopy (CLSM).
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Affiliation(s)
- Anupam Das
- Discipline of Chemistry, Indian Institute of Technology Indore , Indore 453552, Madhya Pradesh, India
| | - Chandan Adhikari
- Discipline of Chemistry, Indian Institute of Technology Indore , Indore 453552, Madhya Pradesh, India
| | - Anjan Chakraborty
- Discipline of Chemistry, Indian Institute of Technology Indore , Indore 453552, Madhya Pradesh, India
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43
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Qie Y, Yuan H, von Roemeling CA, Chen Y, Liu X, Shih KD, Knight JA, Tun HW, Wharen RE, Jiang W, Kim BY. Surface modification of nanoparticles enables selective evasion of phagocytic clearance by distinct macrophage phenotypes. Sci Rep 2016; 6:26269. [PMID: 27197045 PMCID: PMC4872535 DOI: 10.1038/srep26269] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 04/27/2016] [Indexed: 12/21/2022] Open
Abstract
Nanomedicine is a burgeoning industry but an understanding of the interaction of nanomaterials with the immune system is critical for clinical translation. Macrophages play a fundamental role in the immune system by engulfing foreign particulates such as nanoparticles. When activated, macrophages form distinct phenotypic populations with unique immune functions, however the mechanism by which these polarized macrophages react to nanoparticles is unclear. Furthermore, strategies to selectively evade activated macrophage subpopulations are lacking. Here we demonstrate that stimulated macrophages possess higher phagocytic activities and that classically activated (M1) macrophages exhibit greater phagocytic capacity than alternatively activated (M2) macrophages. We show that modification of nanoparticles with polyethylene-glycol results in decreased clearance by all macrophage phenotypes, but importantly, coating nanoparticles with CD47 preferentially lowers phagocytic activity by the M1 phenotype. These results suggest that bio-inspired nanoparticle surface design may enable evasion of specific components of the immune system and provide a rational approach for developing immune tolerant nanomedicines.
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Affiliation(s)
- Yaqing Qie
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Hengfeng Yuan
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
- Department of Orthopedics, Zhongshan Hospital, Fudan University, 111 Yixueyuan Road, Xuhui, Shanghai, China
| | - Christina A. von Roemeling
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
- Mayo Graduate School, Mayo Clinic College of Medicine, 200 1st Street SW, Rochester, MN, 55902, USA
| | - Yuanxin Chen
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Xiujie Liu
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Kevin D. Shih
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Joshua A. Knight
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Han W. Tun
- Department of Hematology/Oncology, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
- Department of Cancer Biology, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Robert E. Wharen
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Wen Jiang
- Department of Hematology/Oncology, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
| | - Betty Y.S. Kim
- Department of Neurosurgery, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
- Department of Cancer Biology, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
- Department of Neuroscience, Mayo Clinic College of Medicine, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville FL, 32224, USA
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