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Bennett D, Chen X, Walker GJ, Stelzer-Braid S, Rawlinson WD, Hibbert DB, Tilley RD, Gooding JJ. Machine Learning Color Feature Analysis of a High Throughput Nanoparticle Conjugate Sensing Assay. Anal Chem 2023; 95:6550-6558. [PMID: 37036670 DOI: 10.1021/acs.analchem.2c05292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Plasmonic nanoparticles are finding applications within the single molecule sensing field in a "dimer" format, where interaction of the target with hairpin DNA causes a decrease in the interparticle distance, leading to a localized surface plasmon resonance shift. While this shift may be detected using spectroscopy, achieving statistical relevance requires the measurement of thousands of nanoparticle dimers and the timescales required for spectroscopic analysis are incompatible with point-of-care devices. However, using dark-field imaging of the dimer structures, simultaneous digital analysis of the plasmonic resonance shift after target interaction of thousands of dimer structures may be achieved in minutes. The main challenge of this digital analysis on the single-molecule scale was the occurrence of false signals caused by non-specifically bound clusters of nanoparticles. This effect may be reduced by digitally separating dimers from other nanoconjugate types. Variation in image intensity was observed to have a discernible impact on the color analysis of the nanoconjugate constructs and thus the accuracy of the digital separation. Color spaces wherein intensity may be uncoupled from the color information (hue, saturation, and value (HSV) and luminance, a* vector, and b* vector (LAB) were contrasted to a color space which cannot uncouple intensity (RGB) to train a classifier algorithm. Each classifier algorithm was validated to determine which color space produced the most accurate digital separation of the nanoconjugate types. The LAB-based learning classifier demonstrated the highest accuracy for digitally separating nanoparticles. Using this classifier, nanoparticle conjugates were monitored for their plasmonic color shift after interaction with a synthetic RNA target, resulting in a platform with a highly accurate yes/no response with a true positive rate of 88% and a true negative rate of 100%. The sensor response of tested single stranded RNA (ssRNA) samples was well above control responses for target concentrations in the range of 10 aM-1 pM.
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Affiliation(s)
- Danielle Bennett
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australian Centre for Nanomedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Xueqian Chen
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australian Centre for Nanomedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Gregory J Walker
- The Virology Research Laboratory, The University of New South Wales, The Prince of Wales Hospital, Sydney, New South Wales 2052, Australia
| | - Sacha Stelzer-Braid
- The Virology Research Laboratory, The University of New South Wales, The Prince of Wales Hospital, Sydney, New South Wales 2052, Australia
| | - William D Rawlinson
- The Virology Research Laboratory, The University of New South Wales, The Prince of Wales Hospital, Sydney, New South Wales 2052, Australia
| | - D Brynn Hibbert
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Richard D Tilley
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - J Justin Gooding
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australian Centre for Nanomedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
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2
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Son J, Kim GH, Lee Y, Lee C, Cha S, Nam JM. Toward Quantitative Surface-Enhanced Raman Scattering with Plasmonic Nanoparticles: Multiscale View on Heterogeneities in Particle Morphology, Surface Modification, Interface, and Analytical Protocols. J Am Chem Soc 2022; 144:22337-22351. [PMID: 36473154 DOI: 10.1021/jacs.2c05950] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Surface-enhanced Raman scattering (SERS) provides significantly enhanced Raman scattering signals from molecules adsorbed on plasmonic nanostructures, as well as the molecules' vibrational fingerprints. Plasmonic nanoparticle systems are particularly powerful for SERS substrates as they provide a wide range of structural features and plasmonic couplings to boost the enhancement, often up to >108-1010. Nevertheless, nanoparticle-based SERS is not widely utilized as a means for reliable quantitative measurement of molecules largely due to limited controllability, uniformity, and scalability of plasmonic nanoparticles, poor molecular modification chemistry, and a lack of widely used analytical protocols for SERS. Furthermore, multiscale issues with plasmonic nanoparticle systems that range from atomic and molecular scales to assembled nanostructure scale are difficult to simultaneously control, analyze, and address. In this perspective, we introduce and discuss the design principles and key issues in preparing SERS nanoparticle substrates and the recent studies on the uniform and controllable synthesis and newly emerging machine learning-based analysis of plasmonic nanoparticle systems for quantitative SERS. Specifically, the multiscale point of view with plasmonic nanoparticle systems toward quantitative SERS is provided throughout this perspective. Furthermore, issues with correctly estimating and comparing SERS enhancement factors are discussed, and newly emerging statistical and artificial intelligence approaches for analyzing complex SERS systems are introduced and scrutinized to address challenges that cannot be fully resolved through synthetic improvements.
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Affiliation(s)
- Jiwoong Son
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Gyeong-Hwan Kim
- The Research Institute of Basic Sciences, Seoul National University, Seoul 08826, South Korea
| | - Yeonhee Lee
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Chungyeon Lee
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Seungsang Cha
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Jwa-Min Nam
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
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3
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Jeevanandam J, Kiew SF, Boakye-Ansah S, Lau SY, Barhoum A, Danquah MK, Rodrigues J. Green approaches for the synthesis of metal and metal oxide nanoparticles using microbial and plant extracts. NANOSCALE 2022; 14:2534-2571. [PMID: 35133391 DOI: 10.1039/d1nr08144f] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Green synthesis approaches are gaining significance as promising routes for the sustainable preparation of nanoparticles, offering reduced toxicity towards living organisms and the environment. Nanomaterials produced by green synthesis approaches can offer additional benefits, including reduced energy inputs and lower production costs than traditional synthesis, which bodes well for commercial-scale production. The biomolecules and phytochemicals extracted from microbes and plants, respectively, are active compounds that function as reducing and stabilizing agents for the green synthesis of nanoparticles. Microorganisms, such as bacteria, yeasts, fungi, and algae, have been used in nanomaterials' biological synthesis for some time. Furthermore, the use of plants or plant extracts for metal and metal-based hybrid nanoparticle synthesis represents a novel green synthesis approach that has attracted significant research interest. This review discusses various biosynthesis approaches via microbes and plants for the green preparation of metal and metal oxide nanoparticles and provides insights into the molecular aspects of the synthesis mechanisms and biomedical applications. The use of agriculture waste as a potential bioresource for nanoparticle synthesis and biomedical applications of biosynthesized nanoparticles is also discussed.
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Affiliation(s)
- Jaison Jeevanandam
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
| | - Siaw Fui Kiew
- Curtin Malaysia Research Institute, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia
- Sarawak Biovalley Pilot Plant, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia
| | - Stephen Boakye-Ansah
- Rowan University, Henry M. Rowan College of Engineering, Department of Chemical Engineering, 201 Mullica Hill Rd, Glassboro, NJ 08028, USA
| | - Sie Yon Lau
- Department of Chemical Engineering, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia
| | - Ahmed Barhoum
- Nanostruc, Research Group, Chemistry Department, Faculty of Science, Helwan University, Helwan 11795, Egypt
- School of Chemical Sciences, Dublin City University, Dublin 9, D09 Y074 Dublin, Ireland
| | - Michael K Danquah
- Chemical Engineering Department, University of Tennessee, Chattanooga, 615 McCallie Ave, Chattanooga, TN 37403, USA
| | - João Rodrigues
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
- School of Materials Science and Engineering, Center for Nano Energy Materials, Northwestern Polytechnical University, Xi'an 710072, China
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4
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Jeevanandam J, Kiew SF, Boakye-Ansah S, Lau SY, Barhoum A, Danquah MK, Rodrigues J. Green approaches for the synthesis of metal and metal oxide nanoparticles using microbial and plant extracts. NANOSCALE 2022. [DOI: https://doi.org/10.1039/d1nr08144f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Green synthesis approaches are gaining significance as promising routes for the sustainable preparation of nanoparticles, offering reduced toxicity towards living organisms and the environment.
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Affiliation(s)
- Jaison Jeevanandam
- CQM – Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Siaw Fui Kiew
- Curtin Malaysia Research Institute, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia
- Sarawak Biovalley Pilot Plant, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia
| | - Stephen Boakye-Ansah
- Rowan University, Henry M. Rowan College of Engineering, Department of Chemical Engineering, 201 Mullica Hill Rd, Glassboro, NJ 08028, USA
| | - Sie Yon Lau
- Department of Chemical Engineering, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia
| | - Ahmed Barhoum
- Nanostruc, Research Group, Chemistry Department, Faculty of Science, Helwan University, Helwan 11795, Egypt
- School of Chemical Sciences, Dublin City University, Dublin 9, D09 Y074 Dublin, Ireland
| | - Michael K. Danquah
- Chemical Engineering Department, University of Tennessee, Chattanooga, 615 McCallie Ave, Chattanooga, TN 37403, USA
| | - João Rodrigues
- CQM – Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- School of Materials Science and Engineering, Center for Nano Energy Materials, Northwestern Polytechnical University, Xi'an 710072, China
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Huda MN, Nafiujjaman M, Deaguero IG, Okonkwo J, Hill ML, Kim T, Nurunnabi M. Potential Use of Exosomes as Diagnostic Biomarkers and in Targeted Drug Delivery: Progress in Clinical and Preclinical Applications. ACS Biomater Sci Eng 2021; 7:2106-2149. [PMID: 33988964 PMCID: PMC8147457 DOI: 10.1021/acsbiomaterials.1c00217] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/03/2021] [Indexed: 12/13/2022]
Abstract
Exosomes are cell-derived vesicles containing heterogeneous active biomolecules such as proteins, lipids, mRNAs, receptors, immune regulatory molecules, and nucleic acids. They typically range in size from 30 to 150 nm in diameter. An exosome's surfaces can be bioengineered with antibodies, fluorescent dye, peptides, and tailored for small molecule and large active biologics. Exosomes have enormous potential as a drug delivery vehicle due to enhanced biocompatibility, excellent payload capability, and reduced immunogenicity compared to alternative polymeric-based carriers. Because of active targeting and specificity, exosomes are capable of delivering their cargo to exosome-recipient cells. Additionally, exosomes can potentially act as early stage disease diagnostic tools as the exosome carries various protein biomarkers associated with a specific disease. In this review, we summarize recent progress on exosome composition, biological characterization, and isolation techniques. Finally, we outline the exosome's clinical applications and preclinical advancement to provide an outlook on the importance of exosomes for use in targeted drug delivery, biomarker study, and vaccine development.
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Affiliation(s)
- Md Nurul Huda
- Environmental Science & Engineering, University of Texas at El Paso, El Paso, TX 79968
| | - Md Nafiujjaman
- Department of Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824
| | - Isaac G Deaguero
- Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79968
| | - Jude Okonkwo
- John A Paulson School of Engineering, Harvard University, Cambridge, MA 02138
| | - Meghan L. Hill
- Department of Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824
| | - Taeho Kim
- Department of Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824
| | - Md Nurunnabi
- Environmental Science & Engineering, University of Texas at El Paso, El Paso, TX 79968
- Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79968
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX 79902
- Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX 79968
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6
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Winkler M, Gleiss M, Nirschl H. Soft Sensor Development for Real-Time Process Monitoring of Multidimensional Fractionation in Tubular Centrifuges. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1114. [PMID: 33923109 PMCID: PMC8145064 DOI: 10.3390/nano11051114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/20/2021] [Indexed: 01/20/2023]
Abstract
High centrifugal acceleration and throughput rates of tubular centrifuges enable the solid-liquid size separation and fractionation of nanoparticles on a bench scale. Nowadays, advantageous product properties are defined by precise specifications regarding particle size and material composition. Hence, there is a demand for innovative and efficient downstream processing of complex particle suspensions. With this type of centrifuge working in a semi-continuous mode, an online observation of the separation quality is needed for optimization purposes. To analyze the composition of fines downstream of the centrifuge, a UV/vis soft sensor is developed to monitor the sorting of polymer and metal oxide nanoparticles by their size and density. By spectroscopic multi-component analysis, a measured UV/vis signal is translated into a model based prediction of the relative solids volume fraction of the fines. High signal stability and an adaptive but mandatory calibration routine enable the presented setup to accurately predict the product's composition at variable operating conditions. It is outlined how this software-based UV/vis sensor can be utilized effectively for challenging real-time process analytics in multi-component suspension processing. The setup provides insight into the underlying process dynamics and assists in optimizing the outcome of separation tasks on the nanoscale.
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7
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Study of the Stability of Citrate Capped AgNPs in Several Environmental Water Matrices by Asymmetrical Flow Field Flow Fractionation. NANOMATERIALS 2021; 11:nano11040926. [PMID: 33916459 PMCID: PMC8066777 DOI: 10.3390/nano11040926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/16/2021] [Accepted: 04/01/2021] [Indexed: 12/25/2022]
Abstract
Asymmetrical flow field-flow fractionation (AF4) coupled to UV-Vis and dynamic light scattering (DLS) detectors in series, was tested for stability studies of dispersions of citrate-capped silver nanoparticles (AgNPs) in several water matrices. The main goal is to provide knowledge to understand their possible behavior in the environment for short times since mixturing (up to 180 min). Ultrapure (UPW), bottled (BW1, BW2), tap (TW), transitional (TrW) and sea water (SW) matrices were assayed. Observations were compatible with the aggregation of AgNPs, a change in the plasmon band and a size growth with time were done. Fractograms showed different evolution fingerprints in the function of the waters and batches. The aggregation rate order was BW2, SW, TrW, BW1 and TW, being BW2 the lowest and TW the highest. NP aggregation can be induced by increasing the salt concentration of the medium, however transitional and sea waters did not follow the rule. Both matrices presented a lower aggregation rate in comparison with other aqueous matrices with much lower ionic strength (BW1 and TW), which can be explained by the potential presence of dissolved organic matter and/or the high concentration of halides providing their stabilization and passivation, respectively. AF4 provides relevant information with respect to static DLS and UV-Vis Spectroscopy showing that at least two populations of aggregates with different sizes between them, depending on both, the mixture time for a given matrix and type of water matrix for the same time.
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8
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Long T, Wu H, Yu H, Thushara D, Bao B, Zhao S, Liu H. Thermodynamic Barrier for Nanoparticle Penetration into Nanotubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:15514-15522. [PMID: 33337163 DOI: 10.1021/acs.langmuir.0c02741] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
It is promising yet challenging to develop efficient methods to separate nanoparticles (NPs) with nanochannel devices. Herein, in order to guide and develop the separation method, the thermodynamic mechanism of NP penetration into solvent-filled nanotubes is investigated by using classical density functional theory. The potential of mean force (PMF) is calculated to evaluate the thermodynamic energy barrier for NP penetration into nanotubes. The accuracy of the theory is validated by comparing it with parallel molecular dynamics simulation. By examining the effects of nanotube size, solvent density, and substrate wettability on the PMF, we find that a large tube, a low bulk solvent density, and a solvophilic substrate can boost the NP penetration into nanotubes. In addition, it is found that an hourglass-shaped entrance can effectively improve the NP penetration efficiency compared with a square-shaped entrance. Furthermore, the minimum separation density of NPs in solution is identified, below which the NP penetration into nanotubes requires an additional driving force. Our findings provide fundamental insights into the thermodynamic barrier for NP penetration into nanotubes, which may provide theoretical guidance for separating two components using microfluidics.
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Affiliation(s)
- Ting Long
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongguan Wu
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongping Yu
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Dilantha Thushara
- Department of Chemical and Process Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
| | - Bo Bao
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shuangliang Zhao
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Honglai Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
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9
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Kagan CR, Bassett LC, Murray CB, Thompson SM. Colloidal Quantum Dots as Platforms for Quantum Information Science. Chem Rev 2020; 121:3186-3233. [DOI: 10.1021/acs.chemrev.0c00831] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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10
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Tayebi M, O'Rorke R, Wong HC, Low HY, Han J, Collins DJ, Ai Y. Massively Multiplexed Submicron Particle Patterning in Acoustically Driven Oscillating Nanocavities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000462. [PMID: 32196142 DOI: 10.1002/smll.202000462] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
Nanoacoustic fields are a promising method for particle actuation at the nanoscale, though THz frequencies are typically required to create nanoscale wavelengths. In this work, the generation of robust nanoscale force gradients is demonstrated using MHz driving frequencies via acoustic-structure interactions. A structured elastic layer at the interface between a microfluidic channel and a traveling surface acoustic wave (SAW) device results in submicron acoustic traps, each of which can trap individual submicron particles. The acoustically driven deformation of nanocavities gives rise to time-averaged acoustic fields which direct suspended particles toward, and trap them within, the nanocavities. The use of SAWs permits massively multiplexed particle manipulation with deterministic patterning at the single-particle level. In this work, 300 nm diameter particles are acoustically trapped in 500 nm diameter cavities using traveling SAWs with wavelengths in the range of 20-80 µm with one particle per cavity. On-demand generation of nanoscale acoustic force gradients has wide applications in nanoparticle manipulation, including bioparticle enrichment and enhanced catalytic reactions for industrial applications.
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Affiliation(s)
- Mahnoush Tayebi
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
| | - Richard O'Rorke
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
| | - Him Cheng Wong
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
| | - Hong Yee Low
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
| | - Jongyoon Han
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - David J Collins
- Department of Biomedical Engineering, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Ye Ai
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
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11
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Winkler M, Sonner H, Gleiss M, Nirschl H. Fractionation of ultrafine particles: Evaluation of separation efficiency by UV–vis spectroscopy. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Chen H, Ruckenstein E. Nanoseparation of Nanoparticle Mixtures with Similar Surface Structures through a Facile Two-Step Approach. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Houyang Chen
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, United States
| | - Eli Ruckenstein
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, United States
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13
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Chen Y, Zhang C, Zheng Q, Chen Y. Separation-cooperated assembly of liquid photonic crystals from polydisperse particles. Chem Commun (Camb) 2018; 54:13937-13940. [PMID: 30394456 DOI: 10.1039/c8cc06499g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Easy and cost-effective production of high-quality photonic crystals (PCs) remains challenging but attractive, not just because they are a type of gemstone but more for their scientific applications (e.g., serving as lossless waveguides, visual sensors, novel pigments and novel separation media). Herein presented is a separation-cooperated assembly (SCA) strategy able to organize cheap polydisperse particles into PCs. Its feasibility was validated through sink-induced SCA of poorly disperse (size variation up to 56%) particles into iridescent liquid PCs in 3 days or more. Strikingly, with a sharp photonic band gap down to 10 nm (ca. 1/7 of the reported 66 nm), the liquid PCs are able to cyclically recover their iridescent color in ca 20 s after agitation, and keep their structural order after dryness, making them practicable to write and paint directly. Also significant is that SCA yielded uniform particles with size variation down to 0.7%. It is thus an easy way to isolate homogeneous particles from disperse ones.
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Affiliation(s)
- Yun Chen
- A Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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14
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De Silva Indrasekara AS, Norton SJ, Geitner NK, Crawford BM, Wiesner MR, Vo-Dinh T. Tailoring the Core-Satellite Nanoassembly Architectures by Tuning Internanoparticle Electrostatic Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:14617-14623. [PMID: 30407828 DOI: 10.1021/acs.langmuir.8b02792] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The use of plasmonic nanoplatforms has received increasing interest in a wide variety of fields ranging from theranostics to environmental sensing to plant biology. In particular, the development of plasmonic nanoparticles into ordered nanoclusters has been of special interest due to the new chemical functionalities and optical responses that they can introduce. However, achieving predetermined nanocluster architectures from bottom-up approaches in the colloidal solution state still remains a great challenge. Herein, we report a one-pot assembly approach that provides flexibility in precise control of core-satellite nanocluster architectures in the colloidal solution state. We found that the pH of the assembly medium plays a vital role in the hierarchy of the nanoclusters. The architecture along with the size of the satellite gold nanoparticles determines the optical responses of nanoclusters. Using electron microscopy and optical spectroscopy, we introduce a set of design rules for the synthesis of distinct architectures of silica-core gold satellites nanoclusters in the colloidal solution state. Our findings provide insight into advancing the colloidal solution state nanoclusters formation with predictable architectures and optical properties.
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15
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Miniaturized liquid chromatography coupled on-line to in-tube solid-phase microextraction for characterization of metallic nanoparticles using plasmonic measurements. A tutorial. Anal Chim Acta 2018; 1045:23-41. [PMID: 30454572 DOI: 10.1016/j.aca.2018.07.073] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 07/26/2018] [Accepted: 07/31/2018] [Indexed: 02/08/2023]
Abstract
This tutorial aims at providing guidelines for analyzing metallic nanoparticles (NPs) and their dispersions by using methods based on miniaturized liquid chromatography with diode array detection (MinLC-DAD) and coupled on-line to in-tube solid-phase microextraction (IT-SPME). Some practical advice and considerations are given for obtaining reliable results. In addition, this work outlines the potential applications that set these methodologies apart from microscopy-related techniques, dynamic light scattering, single particle ICP-MS, capillary electrophoresis, field-flow fractionation and other chromatographic configurations, which are discussed and mainly seek to accomplish size estimation and NP separation, speciation analysis and quantification of mainly AgNPs and AuNPs. MinLC-DAD has the potential to estimate the NP concentration and from it the average size of unknown samples by calibrating with a single standard, as well as studying potentially non-spherical particles and stability-related properties of their dispersions. While keeping the signal dependency with concentration and increasing the method sensitivity, IT-SPME-MinLC-DAD goes further allowing for the assessment of the dispersant effect and ultimately changes in the nanoparticle surroundings that range from modifications of the hydrodynamic diameter to the exposure to different reagents and matrices. The methodology can still be improved by either exploring newer IT-SPME adsorbents or by assaying new system configurations. Taking into account that this technique gives complementary information in relation to other techniques discussed here, this tutorial serves as a guide for analyzing metallic NPs towards a better understanding of the particle behavior under different scenarios.
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16
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Li P, Kumar A, Ma J, Kuang Y, Luo L, Sun X. Density gradient ultracentrifugation for colloidal nanostructures separation and investigation. Sci Bull (Beijing) 2018; 63:645-662. [PMID: 36658885 DOI: 10.1016/j.scib.2018.04.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 01/21/2023]
Abstract
In this article, we review the advancement in nanoseparation and concomitant purification of nanoparticles (NPs) by using density gradient ultracentrifugation technique (DGUC) and demonstrated by taking several typical examples. Study emphasizes the conceptual advances in classification, mechanism of DGUC and synthesis-structure-property relationships of NPs to provide the significant clue for the further synthesis optimization. Separation, concentration, and purification of NPs by DGUC can be achieved at the same time by introducing the water/oil interfaces into the separation chamber. We can develop an efficient method "lab in a tube" by introducing a reaction zone or an assembly zone in the gradient to find the surface reaction and assembly mechanism of NPs since the reaction time can be precisely controlled and the chemical environment change can be extremely fast. Finally, to achieve the best separation parameters for the colloidal systems, we gave the mathematical descriptions and computational optimized models as a new direction for making practicable and predictable DGUC separation method. Thus, it can be helpful for an efficient separation as well as for the synthesis optimization, assembly and surface reactions as a potential cornerstone for the future development in the nanotechnology and this review can be served as a plethora of advanced notes on the DGUC separation method.
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Affiliation(s)
- Pengsong Li
- State Key Laboratory of Chemical Resource Engineering, College of Energy, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Anuj Kumar
- State Key Laboratory of Chemical Resource Engineering, College of Energy, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jun Ma
- State Key Laboratory of Chemical Resource Engineering, College of Energy, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yun Kuang
- State Key Laboratory of Chemical Resource Engineering, College of Energy, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liang Luo
- State Key Laboratory of Chemical Resource Engineering, College of Energy, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, College of Energy, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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17
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Shen Y, Gee MY, Greytak AB. Purification technologies for colloidal nanocrystals. Chem Commun (Camb) 2018; 53:827-841. [PMID: 27942615 DOI: 10.1039/c6cc07998a] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Almost all applications of colloidal nanocrystals require some type of purification or surface modification process following nanocrystal growth. Nanocrystal purification - the separation of nanocrystals from undesired solution components - can perturb the surface chemistry and thereby the physical properties of colloidal nanocrystals due to changes in solvent, solute concentrations, and exposure of the nanocrystal surface to oxidation or hydrolysis. For example, nanocrystal quantum dots frequently exhibit decreased photoluminescence brightness after precipitation from the growth solvent and subsequent redissolution. Consequently, purification is an integral part of the synthetic chemistry of colloidal nanocrystals, and the effect of purification methods must be considered in order to accurately compare and predict the behavior of otherwise similar nanocrystal samples. In this Feature Article we examine established and emerging approaches to the purification of colloidal nanoparticles from a nanocrystal surface chemistry viewpoint. Purification is generally achieved by exploiting differences in properties between the impurities and the nanoparticles. Three distinct properties are typically manipulated: polarity (relative solubility), electrophoretic mobility, and size. We discuss precipitation, extraction, electrophoretic methods, and size-based methods including ultracentrifugation, ultrafiltration, diafiltration, and size-exclusion chromatography. The susceptibility of quantum dots to changes in surface chemistry, with changes in photoluminescence decay associated with surface chemical changes, extends even into the case of core/shell structures. Accordingly, the goal of a more complete description of quantum dot surface chemistry has been a driver of innovation in colloidal nanocrystal purification methods. We specifically examine the effect of purification on surface chemistry and photoluminescence in quantum dots as an example of the challenges associated with nanocrystal purification and how improved understanding can result from increasingly precise techniques, and associated surface-sensitive analytical methods.
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Affiliation(s)
- Yi Shen
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA.
| | - Megan Y Gee
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA.
| | - A B Greytak
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA. and USC Nanocenter, University of South Carolina, Columbia, SC 29208, USA
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18
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Qu H, Wang J, Wu Y, Zheng J, Krishnaiah YS, Absar M, Choi S, Ashraf M, Cruz CN, Xu X. Asymmetric flow field flow fractionation for the characterization of globule size distribution in complex formulations: A cyclosporine ophthalmic emulsion case. Int J Pharm 2018; 538:215-222. [DOI: 10.1016/j.ijpharm.2018.01.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/02/2018] [Accepted: 01/03/2018] [Indexed: 10/18/2022]
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19
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Kim CS, Ingato D, Wilder-Smith P, Chen Z, Kwon YJ. Stimuli-disassembling gold nanoclusters for diagnosis of early stage oral cancer by optical coherence tomography. NANO CONVERGENCE 2018; 5:3. [PMID: 29399435 PMCID: PMC5785591 DOI: 10.1186/s40580-018-0134-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 01/11/2018] [Indexed: 05/26/2023]
Abstract
A key design consideration in developing contrast agents is obtaining distinct, multiple signal changes in diseased tissue. Plasmonic gold nanoparticles (Au NPs) have been developed as contrast agents due to their strong surface plasmon resonance (SPR). This study aims to demonstrate that stimuli-responsive plasmonic Au nanoclusters (Au NCs) can be used as a contrast agent for optical coherence tomography (OCT) in detecting early-stage cancer. Au NPs were clustered via acid-cleavable linkers to synthesize Au NCs that disassemble under mildly acidic conditions into individual Au NPs, simultaneously diminishing SPR effect (quantified by scattering intensity) and increasing Brownian motion (quantified by Doppler variance). The acid-triggered morphological and accompanying optico-physical property changes of the acid-disassembling Au NCs were confirmed by TEM, DLS, UV/Vis, and OCT. Stimuli-responsive Au NCs were applied in a hamster check pouch model carrying early-stage squamous carcinoma tissue. The tissue was visualized by OCT imaging, which showed reduced scattering intensity and increased Doppler variance in the dysplastic tissue. This study demonstrates the promise of diagnosing early-stage cancer using molecularly programmable, inorganic nanomaterial-based contrast agents that are capable of generating multiple, stimuli-triggered diagnostic signals in early-stage cancer.
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Affiliation(s)
- Chang Soo Kim
- Department of Chemical Engineering and Materials Science, University of California, Irvine, 916 Engineering Tower, Irvine, CA 92697-2575 USA
- University of California, Irvine, Beckman Laser Institute, 1002 Health Sciences Road East, Irvine, CA 92612 USA
| | - Dominique Ingato
- Department of Chemical Engineering and Materials Science, University of California, Irvine, 916 Engineering Tower, Irvine, CA 92697-2575 USA
| | - Petra Wilder-Smith
- University of California, Irvine, Beckman Laser Institute, 1002 Health Sciences Road East, Irvine, CA 92612 USA
| | - Zhongping Chen
- Department of Chemical Engineering and Materials Science, University of California, Irvine, 916 Engineering Tower, Irvine, CA 92697-2575 USA
- University of California, Irvine, Beckman Laser Institute, 1002 Health Sciences Road East, Irvine, CA 92612 USA
- Department of Biomedical Engineering, University of California, Irvine, 3120 Natural Sciences II, Irvine, CA 92697-2715 USA
- Department of Chemical Engineering and Materials Science, University of California, Irvine, 1002 Health Sciences Rd, Irvine, CA 92617 USA
| | - Young Jik Kwon
- Department of Chemical Engineering and Materials Science, University of California, Irvine, 916 Engineering Tower, Irvine, CA 92697-2575 USA
- Department of Biomedical Engineering, University of California, Irvine, 3120 Natural Sciences II, Irvine, CA 92697-2715 USA
- Department of Pharmaceutical Sciences, University of California, Irvine, 147 Bison Modular, Irvine, CA 92697 USA
- Department of Molecular Biology and Biochemistry, University of California, Irvine, 3205 McGaugh Hall, Irvine, CA 92697-3900 USA
- Department of Pharmaceutical Sciences, University of California, Irvine, 132 Sprague Hall, Irvine, CA 92697 USA
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20
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Donno R, Gennari A, Lallana E, De La Rosa JMR, d'Arcy R, Treacher K, Hill K, Ashford M, Tirelli N. Nanomanufacturing through microfluidic-assisted nanoprecipitation: Advanced analytics and structure-activity relationships. Int J Pharm 2017; 534:97-107. [PMID: 29017804 DOI: 10.1016/j.ijpharm.2017.10.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/28/2017] [Accepted: 10/01/2017] [Indexed: 01/08/2023]
Abstract
We have employed microfluidics (cross-shaped chip) for the preparation of drug-loaded poly(lactic acid-co-glycolic acid) (PLGA) nanoparticles. The polymer precipitates from an acetone solution upon its controlled laminar mixing (flow focusing) with an aqueous solution of a surfactant, allowing for an operator-independent, up-scalable and reproducible preparative process of nanoformulations. Firstly, using PEGylated surfactants we have compared batch and microfluidic processes, and showed the superior reproducibility of the latter and its strong dependency on the acetone/water ratio (flow rate ratio). We have then focused on the issue of purification from free surfactant, and employed advanced characterization techniques such as flow-through dynamic light scattering as the in-line quality control technique, and field flow fractionation (FFF) with dynamic and static light scattering detection, which allowed the detection of surfactant micelles in mixture with nanoparticles (hardly possible with stand-alone dynamic light scattering). Finally, we have shown that the choice of polymer and surfactant affects the release behaviour of a model drug (paclitaxel), with high molecular weight PLGA (RG756) and low molecular weight surfactant (tocopheryl poly(ethylene glycol) 1000 succinate, TPGS) apparently showing higher burst and accelerated release.
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Affiliation(s)
- Roberto Donno
- North West Centre of Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, Stopford Building, Manchester, M13 9PT, United Kingdom
| | - Arianna Gennari
- North West Centre of Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, Stopford Building, Manchester, M13 9PT, United Kingdom
| | - Enrique Lallana
- North West Centre of Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, Stopford Building, Manchester, M13 9PT, United Kingdom
| | - Julio M Rios De La Rosa
- North West Centre of Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, Stopford Building, Manchester, M13 9PT, United Kingdom
| | - Richard d'Arcy
- North West Centre of Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, Stopford Building, Manchester, M13 9PT, United Kingdom
| | - Kevin Treacher
- Pharmaceutical Technology & Development, AstraZeneca, Macclesfield, SK10 2NA, United Kingdom
| | - Kathryn Hill
- Pharmaceutical Sciences, Innovative Medicines and Early Development, AstraZeneca, Macclesfield, SK10 2NA, United Kingdom
| | - Marianne Ashford
- Pharmaceutical Sciences, Innovative Medicines and Early Development, AstraZeneca, Macclesfield, SK10 2NA, United Kingdom
| | - Nicola Tirelli
- North West Centre of Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, Stopford Building, Manchester, M13 9PT, United Kingdom; Laboratory of Polymers and Biomaterials, Fondazione Istituto Italiano di Tecnologia, 16163, Genova, Italy.
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21
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Chandra K, Kumar V, Werner SE, Odom TW. Separation of Stabilized MOPS Gold Nanostars by Density Gradient Centrifugation. ACS OMEGA 2017; 2:4878-4884. [PMID: 31457766 PMCID: PMC6641882 DOI: 10.1021/acsomega.7b00871] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/10/2017] [Indexed: 05/20/2023]
Abstract
This article describes the stabilization and postsynthetic separation of gold nanostars (AuNS) synthesized with a morpholine-based Good's buffer, 3-(N-morpholino)propanesulfonic acid. Resuspension of AuNS in ultrapure water improved the shape stability of the particles over 30 days. We demonstrated the sorting of nanostars via rate-zonal centrifugation through a linear sucrose gradient based on branch length and number. We determined that one round of centrifugation was sufficient for separation. Also, we improved the structural homogeneity and stability of the nanoparticles through the optimization of the storage conditions and established a robust method to sort AuNS based on size and shape.
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Affiliation(s)
- Kavita Chandra
- Department
of Materials Science and Engineering and Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Vished Kumar
- Department
of Materials Science and Engineering and Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Indian
Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Stephanie E. Werner
- Department
of Materials Science and Engineering and Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W. Odom
- Department
of Materials Science and Engineering and Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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22
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Liu X, Chen B, Cai Y, He M, Hu B. Size-Based Analysis of Au NPs by Online Monolithic Capillary Microextraction-ICPMS. Anal Chem 2016; 89:560-564. [DOI: 10.1021/acs.analchem.6b03532] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xiaolan Liu
- Key Laboratory of Analytical
Chemistry for Biology and Medicine (Ministry of Education), Department
of Chemistry, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Beibei Chen
- Key Laboratory of Analytical
Chemistry for Biology and Medicine (Ministry of Education), Department
of Chemistry, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Yabing Cai
- Key Laboratory of Analytical
Chemistry for Biology and Medicine (Ministry of Education), Department
of Chemistry, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Man He
- Key Laboratory of Analytical
Chemistry for Biology and Medicine (Ministry of Education), Department
of Chemistry, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Bin Hu
- Key Laboratory of Analytical
Chemistry for Biology and Medicine (Ministry of Education), Department
of Chemistry, Wuhan University, Wuhan 430072, People’s Republic of China
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23
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Johnson ME, Montoro Bustos AR, Winchester MR. Practical utilization of spICP-MS to study sucrose density gradient centrifugation for the separation of nanoparticles. Anal Bioanal Chem 2016; 408:7629-7640. [PMID: 27503544 PMCID: PMC5523804 DOI: 10.1007/s00216-016-9844-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/19/2016] [Accepted: 07/27/2016] [Indexed: 11/24/2022]
Abstract
Single particle inductively coupled plasma mass spectrometry (spICP-MS) is shown to be a practical technique to study the efficacy of rate-zonal sucrose density gradient centrifugation (SDGC) separations of mixtures of gold nanoparticles (AuNPs) in liquid suspension. spICP-MS enabled measurements of AuNP size distributions and particle number concentrations along the gradient, allowing unambiguous evaluations of the effectiveness of the separation. Importantly, these studies were conducted using AuNP concentrations that are directly relevant to environmental studies (sub ng mL-1). At such low concentrations, other techniques [e.g., dynamic light scattering (DLS), transmission and scanning electron microscopies (TEM and SEM), UV-vis spectroscopy, atomic force microscopy (AFM)] do not have adequate sensitivity, highlighting the inherent value of spICP-MS for this and similar applications. In terms of the SDGC separations, a mixture containing three populations of AuNPs, having mean diameters of 30, 80, and 150 nm, was fully separated, while separations of two other mixtures (30, 60, 100 nm; and 20, 50, 100 nm) were less successful. Finally, it is shown that the separation capacity of SDGC can be overwhelmed when particle number concentrations are excessive, an especially relevant finding in view of common methodologies taken in nanotechnology research. Graphical Abstract Characterization of the separation of a gold nanoparticle mixture by sucrose density gradient centrifugation by conventional and single particle ICP-MS analysis.
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Affiliation(s)
- Monique E Johnson
- Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899-8391, USA.
| | - Antonio R Montoro Bustos
- Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899-8391, USA.
| | - Michael R Winchester
- Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899-8391, USA
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24
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Li P, Huang J, Luo L, Kuang Y, Sun X. Universal Parameter Optimization of Density Gradient Ultracentrifugation Using CdSe Nanoparticles as Tracing Agents. Anal Chem 2016; 88:8495-501. [DOI: 10.1021/acs.analchem.6b01092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Pengsong Li
- State Key Lab of Chemical
Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jinyang Huang
- State Key Lab of Chemical
Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liang Luo
- State Key Lab of Chemical
Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yun Kuang
- State Key Lab of Chemical
Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoming Sun
- State Key Lab of Chemical
Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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25
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Nayak PS, Arakha M, Kumar A, Asthana S, Mallick BC, Jha S. An approach towards continuous production of silver nanoparticles using Bacillus thuringiensis. RSC Adv 2016. [DOI: 10.1039/c5ra21281b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Herein the principles of green chemistry were applied to optimize the method to produce and extract silver nanoparticles during the growth of bacteria.
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Affiliation(s)
- Parth Sarthi Nayak
- Department of Life Science
- National Institute of Technology Rourkela
- India
| | - Manoranjan Arakha
- Department of Life Science
- National Institute of Technology Rourkela
- India
| | - Ajeet Kumar
- Department of Life Science
- National Institute of Technology Rourkela
- India
| | - Shreyasi Asthana
- Department of Life Science
- National Institute of Technology Rourkela
- India
| | | | - Suman Jha
- Department of Life Science
- National Institute of Technology Rourkela
- India
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26
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Jeon S, Oberreit DR, Van Schooneveld G, Hogan CJ. Nanomaterial size distribution analysis via liquid nebulization coupled with ion mobility spectrometry (LN-IMS). Analyst 2016; 141:1363-75. [DOI: 10.1039/c5an02150b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ion mobility spectrometry is used for nanomaterial size distribution measurement without the need of electrospray based aerosolization.
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Affiliation(s)
- Seongho Jeon
- Department of Mechanical Engineering
- University of Minnesota
- Minneapolis
- USA
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27
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Pitkänen L, Striegel AM. Size-exclusion chromatography of metal nanoparticles and quantum dots. Trends Analyt Chem 2015; 80:311-320. [PMID: 27335508 DOI: 10.1016/j.trac.2015.06.013] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This review presents an overview of size-exclusion chromatographic separation and characterization of noble metal nanoparticles (NPs) and quantum dots (QDs) over the past 25 years. The properties of NPs and QDs that originate from quantum and surface effects are size dependent; to investigate these properties, a separation technique such as size-exclusion chromatography (SEC) is often needed to obtain narrow distribution NP populations that are also separated from the unreacted starting materials. Information on the size distributions and optical properties of NPs have been obtained by coupling SEC to detection methods such as ultraviolet-visible and/or fluorescence spectroscopy. Problems associated with the sorption of NPs and QDs onto various SEC stationary phases, employing both aqueous and organic eluents, are also discussed here.
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Affiliation(s)
- Leena Pitkänen
- National Institute of Standards and Technology, Chemical Sciences Division, 100 Bureau Drive, MS 8392, Gaithersburg, MD 20899, USA
| | - André M Striegel
- National Institute of Standards and Technology, Chemical Sciences Division, 100 Bureau Drive, MS 8392, Gaithersburg, MD 20899, USA
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28
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Zarei K, Moghaddary S. Sensitive spectrophotometric determination of ascorbic acid in drugs and foods using surface plasmon resonance band of silver nanoparticles. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/23312009.2015.1109172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Kobra Zarei
- School of Chemistry, Damghan University, Damghan, Iran
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29
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Single nanoparticle plasmonic sensors. SENSORS 2015; 15:25774-92. [PMID: 26473866 PMCID: PMC4634464 DOI: 10.3390/s151025774] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 09/30/2015] [Accepted: 10/08/2015] [Indexed: 12/25/2022]
Abstract
The adoption of plasmonic nanomaterials in optical sensors, coupled with the advances in detection techniques, has opened the way for biosensing with single plasmonic particles. Single nanoparticle sensors offer the potential to analyse biochemical interactions at a single-molecule level, thereby allowing us to capture even more information than ensemble measurements. We introduce the concepts behind single nanoparticle sensing and how the localised surface plasmon resonances of these nanoparticles are dependent upon their materials, shape and size. Then we outline the different synthetic approaches, like citrate reduction, seed-mediated and seedless growth, that enable the synthesis of gold and silver nanospheres, nanorods, nanostars, nanoprisms and other nanostructures with tunable sizes. Further, we go into the aspects related to purification and functionalisation of nanoparticles, prior to the fabrication of sensing surfaces. Finally, the recent developments in single nanoparticle detection, spectroscopy and sensing applications are discussed.
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30
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Boll B, Folzer E, Finkler C, Huwyler J, Mahler HC, Schmidt R, Koulov AV. Comparative Evaluation of Two Methods for Preparative Fractionation of Proteinaceous Subvisible Particles—Differential Centrifugation and FACS. Pharm Res 2015. [DOI: 10.1007/s11095-015-1755-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Allec N, Choi M, Yesupriya N, Szychowski B, White MR, Kann MG, Garcin ED, Daniel MC, Badano A. Small-angle X-ray scattering method to characterize molecular interactions: Proof of concept. Sci Rep 2015; 5:12085. [PMID: 26160052 PMCID: PMC4498188 DOI: 10.1038/srep12085] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 05/28/2015] [Indexed: 11/24/2022] Open
Abstract
Characterizing biomolecular interactions is crucial to the understanding of biological processes. Existing characterization methods have low spatial resolution, poor specificity, and some lack the capability for deep tissue imaging. We describe a novel technique that relies on small-angle X-ray scattering signatures from high-contrast molecular probes that correlate with the presence of biomolecular interactions. We describe a proof-of-concept study that uses a model system consisting of mixtures of monomer solutions of gold nanoparticles (GNPs) as the non-interacting species and solutions of GNP dimers linked with an organic molecule (dimethyl suberimidate) as the interacting species. We report estimates of the interaction fraction obtained with the proposed small-angle X-ray scattering characterization method exhibiting strong correlation with the known relative concentration of interacting and non-interacting species.
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Affiliation(s)
- Nicholas Allec
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Mina Choi
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Nikhil Yesupriya
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Brian Szychowski
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Maryland, USA
| | - Michael R. White
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Maryland, USA
| | - Maricel G. Kann
- Department of Biological Sciences, University of Maryland, Baltimore County, Maryland, USA
| | - Elsa D. Garcin
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Maryland, USA
| | - Marie-Christine Daniel
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Maryland, USA
| | - Aldo Badano
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
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32
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Yan N, Zhu Z, Jin L, Guo W, Gan Y, Hu S. Quantitative Characterization of Gold Nanoparticles by Coupling Thin Layer Chromatography with Laser Ablation Inductively Coupled Plasma Mass Spectrometry. Anal Chem 2015; 87:6079-87. [DOI: 10.1021/acs.analchem.5b00612] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Neng Yan
- State
Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, China, 430074
| | - Zhenli Zhu
- State
Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, China, 430074
| | - Lanlan Jin
- State
Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, China, 430074
| | - Wei Guo
- State
Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, China, 430074
| | - Yiqun Gan
- School
of Environmental Studies, China University of Geosciences, Wuhan, China, 430074
| | - Shenghong Hu
- State
Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, China, 430074
- Faculty
of Earth Sciences, China University of Geosciences, Wuhan, China, 430074
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33
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Separation of colloidal two dimensional materials by density gradient ultracentrifugation. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2014.09.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kodiha M, Wang YM, Hutter E, Maysinger D, Stochaj U. Off to the organelles - killing cancer cells with targeted gold nanoparticles. Am J Cancer Res 2015; 5:357-70. [PMID: 25699096 PMCID: PMC4329500 DOI: 10.7150/thno.10657] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 12/16/2014] [Indexed: 12/18/2022] Open
Abstract
Gold nanoparticles (AuNPs) are excellent tools for cancer cell imaging and basic research. However, they have yet to reach their full potential in the clinic. At present, we are only beginning to understand the molecular mechanisms that underlie the biological effects of AuNPs, including the structural and functional changes of cancer cells. This knowledge is critical for two aspects of nanomedicine. First, it will define the AuNP-induced events at the subcellular and molecular level, thereby possibly identifying new targets for cancer treatment. Second, it could provide new strategies to improve AuNP-dependent cancer diagnosis and treatment. Our review summarizes the impact of AuNPs on selected subcellular organelles that are relevant to cancer therapy. We focus on the nucleus, its subcompartments, and mitochondria, because they are intimately linked to cancer cell survival, growth, proliferation and death. While non-targeted AuNPs can damage tumor cells, concentrating AuNPs in particular subcellular locations will likely improve tumor cell killing. Thus, it will increase cancer cell damage by photothermal ablation, mechanical injury or localized drug delivery. This concept is promising, but AuNPs have to overcome multiple hurdles to perform these tasks. AuNP size, morphology and surface modification are critical parameters for their delivery to organelles. Recent strategies explored all of these variables, and surface functionalization has become crucial to concentrate AuNPs in subcellular compartments. Here, we highlight the use of AuNPs to damage cancer cells and their organelles. We discuss current limitations of AuNP-based cancer research and conclude with future directions for AuNP-dependent cancer treatment.
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35
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Ng CHB, Fan WY. Colloidal beading: sonication-induced stringing of selenium particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:7313-7318. [PMID: 24915835 DOI: 10.1021/la5012617] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report the preparation of monodispersed Se colloidal aggregates (dimers and trimers) via sonication-induced aggregation of spherical monomers. Control over the size and morphology of the products was achieved by changing the aging and sonication times, respectively. The possible mechanisms for the formation of colloidal aggregates were discussed. This method can provide a simple and versatile approach to the production of colloidal molecules of particles composed of different materials, which will be useful for fundamental studies related to colloidal systems.
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Affiliation(s)
- Choon Hwee Bernard Ng
- Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543
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36
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Sebastian V, Arruebo M, Santamaria J. Reaction engineering strategies for the production of inorganic nanomaterials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:835-53. [PMID: 24123934 DOI: 10.1002/smll.201301641] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Indexed: 05/18/2023]
Abstract
The rapid expansion of nanotechnology requires scaled-up production rates to cope with increased nanomaterials demand. However, in many cases, the final uses of nanomaterials impose strict requisites on their physical and chemical characteristics including size, shape, chemical composition and type of functional groups on their surface. Frequently, additional features such as a limited degree of agglomeration are also demanded. These requisites represent a serious challenge to present-day synthesis methods when nanomaterials must be produced in large amounts. Some of the possible solutions from the reaction engineering perspective are discussed in this work for both gas and liquid phase production processes. Special attention will be devoted to enabling technologies, which allow the production of engineered nanoparticles with limited aggregation and with a good control on their nano-scale characteristics.
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Affiliation(s)
- Victor Sebastian
- Aragon Institute of Nanoscience (INA) and Department of Chemical Engineering University of Zaragoza 50018 Zaragoza, Spain, Networking Research Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), E-50018, Zaragoza, Spain
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37
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Sucrose density gradient centrifugation separation of gold and silver nanoparticles synthesized using Magnolia kobus plant leaf extracts. BIOTECHNOL BIOPROC E 2014. [DOI: 10.1007/s12257-013-0561-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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López-Lorente ÁI, Valcárcel M. Determination of Gold Nanoparticles in Biological, Environmental, and Agrifood Samples. GOLD NANOPARTICLES IN ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/b978-0-444-63285-2.00010-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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39
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López-Lorente ÁI, Valcárcel M. Separation Techniques of Gold Nanoparticles. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/b978-0-444-63285-2.00009-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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40
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Abdallah BG, Chao TC, Kupitz C, Fromme P, Ros A. Dielectrophoretic sorting of membrane protein nanocrystals. ACS NANO 2013; 7:9129-37. [PMID: 24004002 PMCID: PMC3894612 DOI: 10.1021/nn403760q] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Structure elucidation of large membrane protein complexes is still a considerable challenge, yet is a key factor in drug development and disease combat. Femtosecond nanocrystallography is an emerging technique with which structural information of membrane proteins is obtained without the need to grow large crystals, thus overcoming the experimental riddle faced in traditional crystallography methods. Here, we demonstrate for the first time a microfluidic device capable of sorting membrane protein crystals based on size using dielectrophoresis. We demonstrate the excellent sorting power of this new approach with numerical simulations of selected submicrometer beads in excellent agreement with experimental observations. Crystals from batch crystallization broths of the huge membrane protein complex photosystem I were sorted without further treatment, resulting in a high degree of monodispersity and crystallinity in the ~100 nm size range. Microfluidic integration, continuous sorting, and nanometer-sized crystal fractions make this method ideal for direct coupling to femtosecond nanocrystallography.
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Affiliation(s)
| | - Tzu-Chiao Chao
- Department of Biology, University of Regina, Regina, SK, S4S0A2, Canada
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41
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González-Fuenzalida RA, Moliner-Martínez Y, González-Béjar M, Molins-Legua C, Verdú-Andres J, Pérez-Prieto J, Campins-Falcó P. In situ colorimetric quantification of silver cations in the presence of silver nanoparticles. Anal Chem 2013; 85:10013-6. [PMID: 24131247 DOI: 10.1021/ac402822d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Silver ions (Ag(+)) can be quantified in situ in the presence of AgNPs by using a colorimetric sensing probe (3,3',5,5'-tetramethylbenzidine). Interestingly, it also enables detection of the Ag(+) adsorbed on the AgNP surface. This is relevant to design new methods to make AgNPs while ensuring the total reduction of Ag(+).
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Affiliation(s)
- R A González-Fuenzalida
- Department of Analytical Chemistry, University of Valencia Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
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42
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Indrasekara ASDS, Paladini BJ, Naczynski DJ, Starovoytov V, Moghe PV, Fabris L. Dimeric gold nanoparticle assemblies as tags for SERS-based cancer detection. Adv Healthc Mater 2013; 2:1370-6. [PMID: 23495174 DOI: 10.1002/adhm.201200370] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 11/19/2012] [Indexed: 01/21/2023]
Abstract
Herein, a new class of multifunctional materials combining a clustered nanoparticle-based probe is presented for surface enhanced Raman scattering (SERS)-based microscopy and surface functionalization for tissue targeting. Controlled assembly of spherical gold nanoparticles into dimers (DNP-REP) is engineered using a small, rigid Raman-active dithiolated linking reporter (REP) to yield narrow internanoparticle gaps and to strategically generate the "hot spot" while concurrently placing the reporter within the region of highest SERS enhancement. Peptide functionalized DNP-REP materials are highly stable even upon incubation with living cells and show controlled levels of binding and intracellular endocytosis. To demonstrate the functionality of such probes for disease detection, differentially targeted DNP-REPs are incubated over various time points with cultured human glioblastoma cells. Using human glioblastoma cells, the SERS maps of targeted tumor cells show the markedly enhanced signals of the DNP-REP, compared to conventional confocal fluorescence based approaches, especially at low incubation times. Even with as few as 40 internalized DNP-REP, a relatively intense SERS signal is measured, demonstrating the high signal to noise ratio and inherent biocompatibility of the materials. Thus, these Raman reporter-based nanoparticle cluster probes present a promising and versatile optical imaging tool for fast, reliable, selective, and ultrasensitive tissue targeting and disease detection and screening.
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Affiliation(s)
- A Swarnapali D S Indrasekara
- Department of Materials Science and Engineering, Institute for Advanced Materials Devices and Nanotechnology, Rutgers University, 607 Taylor Road, Piscataway, New Jersey 08854, USA
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43
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Cuche A, Canaguier-Durand A, Devaux E, Hutchison JA, Genet C, Ebbesen TW. Sorting nanoparticles with intertwined plasmonic and thermo-hydrodynamical forces. NANO LETTERS 2013; 13:4230-5. [PMID: 23927628 DOI: 10.1021/nl401922p] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We exploit plasmonic and thermo-hydrodynamical forces to sort gold nanoparticles in a microfluidic environment. In the appropriate regime, the experimental data extracted from a Brownian statistical analysis of the kinetic motions are in good agreement with Mie-type theoretical evaluations of the optical forces acting on the nanoparticles in the plasmonic near field. This analysis enables us to demonstrate the importance of thermal and hydrodynamical effects in a sorting perspective.
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Affiliation(s)
- A Cuche
- ISIS & icFRC, University of Strasbourg and CNRS (UMR 7006) , 8 allée Gaspard Monge, 67000 Strasbourg, France
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44
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Tian A, Qi J, Liu Y, Wang F, Ito Y, Wei Y. Chiral magnetic microspheres purified by centrifugal field flow fractionation and microspheres magnetic chiral chromatography for benzoin racemate separation. J Chromatogr A 2013; 1305:333-7. [PMID: 23891368 PMCID: PMC3791516 DOI: 10.1016/j.chroma.2013.07.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 07/08/2013] [Accepted: 07/10/2013] [Indexed: 10/26/2022]
Abstract
Separation of enantiomers still remains a challenge due to their identical physical and chemical properties in a chiral environment, and the research on specific chiral selector along with separation techniques continues to be conducted to resolve individual enantiomers. In our laboratory the promising magnetic chiral microspheres Fe3O4@SiO2@cellulose-2, 3-bis (3,5-dimethylphenylcarbamate) have been developed to facilitate the resolution using both its magnetic property and chiral recognition ability. In our present studies this magnetic chiral selector was first purified by centrifuge field flow fractionation, and then used to separate benzoin racemate by a chromatographic method. Uniform-sized and masking-impurity-removed magnetic chiral selector was first obtained by field flow fractionation with ethanol through a spiral column mounted on the type-J planetary centrifuge, and using the purified magnetic chiral selector, the final chromatographic separation of benzoin racemate was successfully performed by eluting with ethanol through a coiled tube (wound around the cylindrical magnet to retain the magnetic chiral selector as a stationary phase) submerged in dry ice. In addition, an external magnetic field facilitates the recycling of the magnetic chiral selector.
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Affiliation(s)
- Ailin Tian
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, P. R. China
| | - Jing Qi
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, P. R. China
| | - Yating Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, P. R. China
| | - Fengkang Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, P. R. China
| | - Yoichiro Ito
- Laboratory of Bioseparation Technology, Biochemistry and Biophysics Center, NHLBI, National Institutes of Health, 10 Center Drive, Bldg. 10, Room 8N230, Bethesda, MD 20892, USA
| | - Yun Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, P. R. China
- Laboratory of Bioseparation Technology, Biochemistry and Biophysics Center, NHLBI, National Institutes of Health, 10 Center Drive, Bldg. 10, Room 8N230, Bethesda, MD 20892, USA
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45
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Khajeh M, Laurent S, Dastafkan K. Nanoadsorbents: Classification, Preparation, and Applications (with Emphasis on Aqueous Media). Chem Rev 2013; 113:7728-68. [DOI: 10.1021/cr400086v] [Citation(s) in RCA: 355] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Mostafa Khajeh
- Department of Chemistry, University of Zabol, Mofateh Street, Zabol, Sistan & Balouchestan 98615-538, Iran
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 20, Place du Parc, B-7000 Mons, Belgium
| | - Kamran Dastafkan
- Department of Chemistry, University of Zabol, Mofateh Street, Zabol, Sistan & Balouchestan 98615-538, Iran
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46
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Affiliation(s)
- Yunqing Wang
- Key Laboratory of Coastal Zone
Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Bing Yan
- School of Chemistry and Chemical
Engineering, Shandong University, Jinan
250100, China
| | - Lingxin Chen
- Key Laboratory of Coastal Zone
Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
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47
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Tamura M, Iida T. Fluctuation-mediated optical screening of nanoparticles. NANO LETTERS 2012; 12:5337-5341. [PMID: 22928781 DOI: 10.1021/nl302716c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Inspired by biological motors, we propose a guiding principle for selectively separating nanoparticles (NPs) by efficiently using the light-induced force (LIF) and thermal fluctuations. We demonstrate the possibility of transporting metallic NPs of different sizes with a size-selection accuracy of less than 10 nm even at room temperature by designing asymmetric spatiotemporal light fields. This technique will lead to unconventional nanoextraction processes based on light and fluctuations.
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Affiliation(s)
- Mamoru Tamura
- Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, 1-2, Gakuencho, Nakaku, Sakai, Osaka 599-8570, Japan
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48
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Pierre MCS, Haes AJ. Purification Implications on SERS Activity of Silica Coated Gold Nanospheres. Anal Chem 2012; 84:7906-11. [DOI: 10.1021/ac3016517] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Amanda J. Haes
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242 United States
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49
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Li L, Leopold K. Ligand-Assisted Extraction for Separation and Preconcentration of Gold Nanoparticles from Waters. Anal Chem 2012; 84:4340-9. [DOI: 10.1021/ac2034437] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lingxiangyu Li
- Department of Chemistry, Technische Universität München, 85747 Garching, Germany
| | - Kerstin Leopold
- Institute of Analytical and Bioanalytical
Chemistry, University of Ulm, 89069 Ulm,
Germany
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50
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Ploschner M, Čižmár T, Mazilu M, Di Falco A, Dholakia K. Bidirectional optical sorting of gold nanoparticles. NANO LETTERS 2012; 12:1923-1927. [PMID: 22448854 DOI: 10.1021/nl204378r] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present a generic technique allowing size-based all-optical sorting of gold nanoparticles. Optical forces acting on metallic nanoparticles are substantially enhanced when they are illuminated at a wavelength near the plasmon resonance, as determined by the particle's geometry. Exploiting these resonances, we realize sorting in a system of two counter-propagating evanescent waves, each at different wavelengths that selectively guide nanoparticles of different sizes in opposite directions. We validate this concept by demonstrating bidirectional sorting of gold nanoparticles of either 150 or 130 nm in diameter from those of 100 nm in diameter within a mixture.
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Affiliation(s)
- M Ploschner
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, United Kingdom.
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