1
|
Schmeltzer AJ, Peterson EM, Harris JM, Lathrop DK, German SR, White HS. Simultaneous Multipass Resistive-Pulse Sensing and Fluorescence Imaging of Liposomes. ACS NANO 2024; 18:7241-7252. [PMID: 38377597 DOI: 10.1021/acsnano.3c12627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Simultaneous multipass resistive-pulse sensing and fluorescence imaging have been used to correlate the size and fluorescence intensity of individual E. coli lipid liposomes composed of E. coli polar lipid extracts labeled with membrane-bound 3,3-dioctadecyloxacarbocyanine (DiO) fluorescent molecules. Here, a nanopipet serves as a waveguide to direct excitation light to the resistive-pulse sensing zone at the end of the nanopipet tip. Individual DiO-labeled liposomes (>50 nm radius) were multipassed back and forth through the orifices of glass nanopipets' 110-150 nm radius via potential switching to obtain subnanometer sizing precision, while recording the fluorescence intensity of the membrane-bound DiO molecules. Fluorescence was measured as a function of liposome radius and found to be approximately proportional to the total membrane surface area. The observed relationship between liposome size and fluorescence intensity suggests that multivesicle liposomes emit greater fluorescence compared to unilamellar liposomes, consistent with all lipid membranes of the multivesicle liposomes containing DiO. Fluorescent and nonfluorescent liposomes are readily distinguished from each other in the same solution using simultaneous multipass resistive-pulse sensing and fluorescence imaging. A fluorescence "dead zone" of ∼1 μm thickness just outside of the nanopipet orifice was observed during resistive-pulse sensing, resulting in "on/off" fluorescent behavior during liposome multipassing.
Collapse
Affiliation(s)
| | - Eric M Peterson
- Electronic BioSciences, Inc., 421 Wakara Way, Suite 328, Salt Lake City, Utah 84108, United States
| | - Joel M Harris
- Department of Chemistry, University of Utah; Salt Lake City, Utah 84112, United States
| | - Daniel K Lathrop
- Electronic BioSciences, Inc., 421 Wakara Way, Suite 328, Salt Lake City, Utah 84108, United States
| | - Sean R German
- Electronic BioSciences, Inc., 421 Wakara Way, Suite 328, Salt Lake City, Utah 84108, United States
| | - Henry S White
- Department of Chemistry, University of Utah; Salt Lake City, Utah 84112, United States
| |
Collapse
|
2
|
Ushkov A, Machnev A, Ginzburg P. Optically Controlled Dissolution Kinetics of Vaterite Microcapsules: Toward Novel Crystal Growth Strategies. CRYSTAL GROWTH & DESIGN 2023; 23:8009-8017. [PMID: 37937190 PMCID: PMC10626575 DOI: 10.1021/acs.cgd.3c00799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/13/2023] [Indexed: 11/09/2023]
Abstract
Controllable continuous release of functional materials from capsules is one of the unmet functions of theragnosis particles; on this way, understanding cargo-fluid interactions in vitro is an essential milestone. We develop a flexible platform to investigate single particle-fluid interactions utilizing a glass micropipette as a highly localized flow source around an optically trapped particle. In proof-of-concept experiments, this microparticle is sensitive to local microflow distribution, thus serving as a probe. The very same flows are capable of the particle rotating (i.e., vaterite drug cargo) at frequencies dependent on the mutual particle-pipette position. Platform flexibility comes from different interactions of a tweezer (optical forces) and a pipette (mechanical/hydrodynamical) with a microparticle, which makes this arrangement an ideal microtool. We studied the vaterite dissolution kinetics and demonstrated that it can be controlled on demand, providing a wide cargo release dynamic rate. Our results promote the use of inorganic mesoporous nanoparticles as a nanomedicine platform.
Collapse
Affiliation(s)
- Andrei Ushkov
- School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| | - Andrey Machnev
- School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| | - Pavel Ginzburg
- School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| |
Collapse
|
3
|
Wahab O, Kang M, Meloni GN, Daviddi E, Unwin PR. Nanoscale Visualization of Electrochemical Activity at Indium Tin Oxide Electrodes. Anal Chem 2022; 94:4729-4736. [PMID: 35255211 PMCID: PMC9007413 DOI: 10.1021/acs.analchem.1c05168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/11/2022] [Indexed: 01/08/2023]
Abstract
Indium tin oxide (ITO) is a popular electrode choice, with diverse applications in (photo)electrocatalysis, organic photovoltaics, spectroelectrochemistry and sensing, and as a support for cell biology studies. Although ITO surfaces exhibit heterogeneous local electrical conductivity, little is known as to how this translates to electrochemistry at the same scale. This work investigates nanoscale electrochemistry at ITO electrodes using high-resolution scanning electrochemical cell microscopy (SECCM). The nominally fast outer-sphere one-electron oxidation of 1,1'-ferrocenedimethanol (FcDM) is used as an electron transfer (ET) kinetic marker to reveal the charge transfer properties of the ITO/electrolyte interface. SECCM measures spatially resolved linear sweep voltammetry at an array of points across the ITO surface, with the topography measured synchronously. Presentation of SECCM data as current maps as a function of potential reveals that, while the entire surface of ITO is electroactive, the ET activity is highly spatially heterogeneous. Kinetic parameters (standard rate constant, k0, and transfer coefficient, α) for FcDM0/+ are assigned from 7200 measurements at sites across the ITO surface using finite element method modeling. Differences of 3 orders of magnitude in k0 are revealed, and the average k0 is about 20 times larger than that measured at the macroscale. This is attributed to macroscale ET being largely limited by lateral conductivity of the ITO electrode under electrochemical operation, rather than ET kinetics at the ITO/electrolyte interface, as measured by SECCM. This study further demonstrates the considerable power of SECCM for direct nanoscale characterization of electrochemical processes at complex electrode surfaces.
Collapse
Affiliation(s)
- Oluwasegun
J. Wahab
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Minkyung Kang
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
- Institute
for Frontier Materials Deakin University, Burwood, Victoria 3125, Australia
| | - Gabriel N. Meloni
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Enrico Daviddi
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Patrick R. Unwin
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| |
Collapse
|
4
|
Wang Y, Jiang B, Wang Y, Wei W, Niu B, Chen H, Wang H. Imaging the Heterogeneous Localization of a Single Molecule. Anal Chem 2021; 93:12464-12471. [PMID: 34459585 DOI: 10.1021/acs.analchem.1c02787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Single-molecule localization allows determining the underlying biological and biochemical processes and promotes the development of super-resolution imaging techniques. Here, we present an optical technique of tracking the motion of a single nanoparticle linked to a substrate via a biomolecule tether to reveal the localization of single biomolecules and the transient states of single nanoparticle switching between specific binding pairs. The affinities, steric hindrance, and conformational variation of a single-molecule binding pair uncover the dynamic details and intrinsic mechanism of binding processes with high specificity and accuracy (a few nanometers). The application of tracking motions of single soft liposomes on different modified surfaces was further demonstrated, which revealed the characteristic behavior related to surface chemistry. Our results show that the trajectory of nanoscale liposomes loaded with small-drug molecules is linked to the compositional inhomogeneity, which provides a route for thorough comprehension of the fundamental biotechnological process.
Collapse
Affiliation(s)
- Yi Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Bo Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yan Wang
- Biodesign Center for Bioelectronics and Biosensors, and School of Electrical, Energy, and Computer Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Wei Wei
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ben Niu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hongyuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hui Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| |
Collapse
|
5
|
Sundaresan V, Cutri AR, Metro J, Madukoma CS, Shrout JD, Hoffman AJ, Willets KA, Bohn PW. Potential dependent spectroelectrochemistry of electrofluorogenic dyes on indium‐tin oxide. ELECTROCHEMICAL SCIENCE ADVANCES 2021; 2. [DOI: 10.1002/elsa.202100094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Vignesh Sundaresan
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana
| | - Allison R. Cutri
- Department of Chemistry and Biochemistry University of Notre Dame Notre Dame Indiana
| | - Jarek Metro
- Department of Chemistry and Biochemistry University of Notre Dame Notre Dame Indiana
| | - Chinedu S. Madukoma
- Department of Civil and Environmental Engineering and Earth Sciences University of Notre Dame Notre Dame Indiana
- Eck Institute for Global Health University of Notre Dame Notre Dame Indiana
| | - Joshua D. Shrout
- Department of Civil and Environmental Engineering and Earth Sciences University of Notre Dame Notre Dame Indiana
- Eck Institute for Global Health University of Notre Dame Notre Dame Indiana
- Department of Biological Sciences University of Notre Dame Notre Dame Indiana
| | - Anthony J. Hoffman
- Department of Electrical Engineering University of Notre Dame Notre Dame Indiana
| | | | - Paul W. Bohn
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana
- Department of Chemistry and Biochemistry University of Notre Dame Notre Dame Indiana
| |
Collapse
|
6
|
Li Y, Morel A, Gallant D, Mauzeroll J. Ag + Interference from Ag/AgCl Wire Quasi-Reference Counter Electrode Inducing Corrosion Potential Shift in an Oil-Immersed Scanning Micropipette Contact Method Measurement. Anal Chem 2021; 93:9657-9662. [PMID: 34236831 DOI: 10.1021/acs.analchem.1c01045] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Quantitative scanning micropipette contact method measurements are subject to the deleterious effects of reference electrode interference. The commonly used Ag/AgCl wire quasi-reference counter electrode in the miniaturized electrochemical cell of the scanning micropipette contact method was found to leak Ag+ into the electrolyte solution. The reduction of these Ag+ species at the working electrode surface generates a faradaic current, which significantly affects the low magnitude currents inherently measured in the scanning micropipette contact method. We demonstrate that, during the microscopic corrosion investigation of the AA7075-T73 alloy using the oil-immersed scanning micropipette contact method, the cathodic current was increased by the Ag+ reduction, resulting in positive shifts of corrosion potentials. The use of a leak-free Ag/AgCl electrode or an extended distance between the Ag/AgCl wire and micropipette tip droplet eliminated the Ag+ contamination, making it possible to measure accurate corrosion potentials during the oil-immersed scanning micropipette contact method measurements.
Collapse
Affiliation(s)
- Yuanjiao Li
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Alban Morel
- Automotive and Surface Transportation Research Centre, Division of Transportation and Manufacturing, National Research Council Canada, Aluminum Technology Center, 501 University Blvd. East, Saguenay, Quebec G7H 8C3, Canada
| | - Danick Gallant
- Automotive and Surface Transportation Research Centre, Division of Transportation and Manufacturing, National Research Council Canada, Aluminum Technology Center, 501 University Blvd. East, Saguenay, Quebec G7H 8C3, Canada
| | - Janine Mauzeroll
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| |
Collapse
|
7
|
Antaw F, Anderson W, Wuethrich A, Trau M. On the Behavior of Nanoparticles beyond the Nanopore Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:4772-4782. [PMID: 33870692 DOI: 10.1021/acs.langmuir.0c03083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recent advances in solid-state and biological nanopore sensors have produced a deluge of analytical techniques for in situ characterization of bio-nano colloidal dispersions; however, the transport forces governing particle movement into and out of the nanopore are not yet fully understood. Herein, we study the motion of particles outside the smaller opening of an elastomeric size-tunable nanopore and relate this motion to existing transport forces known to act on particles within the pore. Subsequently, we develop a combined optoelectronic approach which allows the comparison of both resistive pulse sensing and single particle tracking-based techniques for particle size characterization and, intriguingly, measurements of the ensemble particle motion induced by a combination of particle electrophoresis as well as pressure-driven and electroosmotic flows through the sensor nanopore. We find evidence suggesting that although bulk fluid flow from the pore tends to drive particle motion, in certain circumstances, electrophoretically driven motion can dominate bulk fluid flow-driven motion even at large distances from the pore opening. By permitting direct observation of the behavior of fluids at the nanopore interface, this approach enables a greater understanding of the transport forces acting on particles as they migrate toward and move through nanopore sensors-with implications for future particle characterization systems and for nanopore methods in general.
Collapse
Affiliation(s)
- Fiach Antaw
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner of College and Cooper Roads (Building 75), Brisbane, Queensland 4072, Australia
| | - Will Anderson
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner of College and Cooper Roads (Building 75), Brisbane, Queensland 4072, Australia
| | - Alain Wuethrich
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner of College and Cooper Roads (Building 75), Brisbane, Queensland 4072, Australia
| | - Matt Trau
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner of College and Cooper Roads (Building 75), Brisbane, Queensland 4072, Australia
| |
Collapse
|
8
|
Linnemann J, Kanokkanchana K, Tschulik K. Design Strategies for Electrocatalysts from an Electrochemist’s Perspective. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04118] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Julia Linnemann
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| | - Kannasoot Kanokkanchana
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| | - Kristina Tschulik
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| |
Collapse
|
9
|
Zhong Y, Wang G. Three-Dimensional Single Particle Tracking and Its Applications in Confined Environments. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2020; 13:381-403. [PMID: 32097571 DOI: 10.1146/annurev-anchem-091819-100409] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single particle tracking (SPT) has proven to be a powerful technique in studying molecular dynamics in complicated systems. We review its recent development, including three-dimensional (3D) SPT and its applications in probing nanostructures and molecule-surface interactions that are important to analytical chemical processes. Several frequently used 3D SPT techniques are introduced. Especially of interest are those based on point spread function engineering, which are simple in instrumentation and can be easily adapted and used in analytical labs. Corresponding data analysis methods are briefly discussed. We present several important case studies, with a focus on probing mass transport and molecule-surface interactions in confined environments. The presented studies demonstrate the great potential of 3D SPT for understanding fundamental phenomena in confined space, which will enable us to predict basic principles involved in chemical recognition, separation, and analysis, and to optimize mass transport and responses by structural design and optimization.
Collapse
Affiliation(s)
- Yaning Zhong
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, USA;
| | - Gufeng Wang
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, USA;
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, USA
| |
Collapse
|
10
|
Ying YL, Wang J, Leach AR, Jiang Y, Gao R, Xu C, Edwards MA, Pendergast AD, Ren H, Weatherly CKT, Wang W, Actis P, Mao L, White HS, Long YT. Single-entity electrochemistry at confined sensing interfaces. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9716-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
11
|
Affiliation(s)
- Si-Min Lu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Yue-Yi Peng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Yi-Lun Ying
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Yi-Tao Long
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| |
Collapse
|
12
|
Nguyen THT, Lee J, Kim HY, Nam KM, Kim BK. Current research on single-entity electrochemistry for soft nanoparticle detection: Introduction to detection methods and applications. Biosens Bioelectron 2020; 151:111999. [DOI: 10.1016/j.bios.2019.111999] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/06/2019] [Accepted: 12/26/2019] [Indexed: 10/25/2022]
|
13
|
Trindell JA, Duan Z, Henkelman G, Crooks RM. Well-Defined Nanoparticle Electrocatalysts for the Refinement of Theory. Chem Rev 2019; 120:814-850. [DOI: 10.1021/acs.chemrev.9b00246] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jamie A. Trindell
- Department of Chemistry and Texas Materials Institute, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Zhiyao Duan
- Department of Chemistry and Texas Materials Institute, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Graeme Henkelman
- Department of Chemistry and Texas Materials Institute, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Richard M. Crooks
- Department of Chemistry and Texas Materials Institute, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| |
Collapse
|
14
|
Stockmann TJ, Lemineur JF, Liu H, Cometto C, Robert M, Combellas C, Kanoufi F. Single LiBH4 nanocrystal stochastic impacts at a micro water|ionic liquid interface. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
15
|
Walmsley JD, Hill JW, Saha P, Hill CM. Probing Electrocatalytic CO2 Reduction at Individual Cu Nanostructures via Optically Targeted Electrochemical Cell Microscopy. JOURNAL OF ANALYSIS AND TESTING 2019. [DOI: 10.1007/s41664-019-00090-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
16
|
Qiu K, Fato TP, Wang PY, Long YT. Real-time monitoring of electrochemical reactions on single nanoparticles by dark-field and Raman microscopy. Dalton Trans 2019; 48:3809-3814. [DOI: 10.1039/c8dt05141k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Dark-field and Raman microscopy to probe the single NP electrochemistry in real time.
Collapse
Affiliation(s)
- Kaipei Qiu
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Tano Patrice Fato
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Pei-Yao Wang
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yi-Tao Long
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| |
Collapse
|
17
|
Bentley CL, Edmondson J, Meloni GN, Perry D, Shkirskiy V, Unwin PR. Nanoscale Electrochemical Mapping. Anal Chem 2018; 91:84-108. [PMID: 30500157 DOI: 10.1021/acs.analchem.8b05235] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
18
|
Bentley CL, Kang M, Unwin PR. Nanoscale Surface Structure–Activity in Electrochemistry and Electrocatalysis. J Am Chem Soc 2018; 141:2179-2193. [DOI: 10.1021/jacs.8b09828] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Minkyung Kang
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Patrick R. Unwin
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| |
Collapse
|
19
|
Zhong Y, Wang G. Three-Dimensional Heterogeneous Structure Formation on a Supported Lipid Bilayer Disclosed by Single-Particle Tracking. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11857-11865. [PMID: 30170491 DOI: 10.1021/acs.langmuir.8b01690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Three-dimensional (3D) single-particle tracking was employed to study the lipid membrane morphology change at different pHs on glass supported lipid bilayers (SLBs) [1,2-dioleoyl- sn-glycero-3-phosphoethanolamine/1,2-dioleoyl- sn-glycero-3-phospho-l-serine (sodium salt)/1,2-dioleoyl- sn-glycero-3-phosphocholine = 5:3:2]. Fluorescently tagged, carboxylated polystyrene nanoparticles (of 100 nm) were used as the probes. At neutral pHs, the particles' diffusion was close to two-dimensional Brownian motion, indicating a mainly planar structure of the SLBs. When the environmental pH was tuned to be basic at 10.0, transiently confined diffusions within small areas were frequently observed. These confinements had a lateral dimension of 100-200 nm. Most interestingly, they showed 3D bulged structures protruding from the planar lipid bilayer. The particles were trapped by these 3D structures for a short period of time (∼0.75 s), with an estimated escape activation energy of ∼4.2 kB T. Nonuniform distribution of pH-sensitive lipids in the membrane was proposed to explain the formation of these 3D heterogeneous structures. This work suggests that the geometry of the 3D lipid structures can play a role in tuning the particle-lipid surface interactions. It sheds new light on the origin of lateral heterogeneity on the lipid membrane.
Collapse
Affiliation(s)
- Yaning Zhong
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695-8204 , United States
| | - Gufeng Wang
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695-8204 , United States
| |
Collapse
|
20
|
Zhong Y, Li C, Zhou H, Wang G. Developing Noise-Resistant Three-Dimensional Single Particle Tracking Using Deep Neural Networks. Anal Chem 2018; 90:10748-10757. [DOI: 10.1021/acs.analchem.8b01334] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
21
|
Sundaresan V, Monaghan JW, Willets KA. Monitoring Simultaneous Electrochemical Reactions with Single Particle Imaging. ChemElectroChem 2018. [DOI: 10.1002/celc.201800715] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Vignesh Sundaresan
- Department of ChemistryTemple University 1901 N 13th Street Philadelphia, PA 19122 USA
| | - Joseph W. Monaghan
- Department of ChemistryTemple University 1901 N 13th Street Philadelphia, PA 19122 USA
| | - Katherine A. Willets
- Department of ChemistryTemple University 1901 N 13th Street Philadelphia, PA 19122 USA
| |
Collapse
|
22
|
Brasiliense V, Noël J, Wonner K, Tschulik K, Combellas C, Kanoufi F. Single Nanoparticle Growth from Nanoparticle Tracking Analysis: From Monte Carlo Simulations to Nanoparticle Electrogeneration. ChemElectroChem 2018. [DOI: 10.1002/celc.201800742] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Vitor Brasiliense
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
- Northwestern University Department of Chemistry 2145 Sheridan Rd. 60208 Evanston IL USA
| | - Jean‐Marc Noël
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
| | - Kevin Wonner
- Ruhr-University BochumChair of Analytical Chemistry II and Centre for Electrochemical Sciences (CES), ZEMOS Bochum 44801 Germany
| | - Kristina Tschulik
- Ruhr-University BochumChair of Analytical Chemistry II and Centre for Electrochemical Sciences (CES), ZEMOS Bochum 44801 Germany
| | - Catherine Combellas
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
| | - Frédéric Kanoufi
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
| |
Collapse
|
23
|
Chang PL, Graf M, Hung CH, Radenovic A. Orthogonal Tip-to-Tip Nanocapillary Alignment Allows for Easy Detection of Fluorescent Emitters in Femtomolar Concentrations. NANO LETTERS 2018; 18:3165-3171. [PMID: 29616553 DOI: 10.1021/acs.nanolett.8b00831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Here we present the realization of a novel fluorescence detection method based on the electromigration of fluorescent molecules within a nanocapillary combined with the laser excitation through a platinum (Pt)-coated nanocapillary. By using the Pt nanocapillary assisted focusing of a laser beam, we completely remove the background scattering on the tip of the electrophoretic nanocapillary. In this excitation geometry, we demonstrate a 1000-fold sensitivity enhancement (1.0 nM to 1.0 pM) compared to the detection in microcapillaries with epifluorescence illumination and fluorescence spectrophotometry. Due to a significant electroosmotic flow, we observe a decelerating migration of DNA molecules close to the tip of the electrophoretic nanocapillary. The reduced DNA translocation velocity causes a two-step stacking process of molecules in the tip of the nanocapillary and can be used as a way to locally concentrate molecules. The sensitivity of our method is further improved by a continuous electrokinetic injection of DNA molecules followed by sample zone stacking on the tip of the nanocapillary. Concentrations ranging from 0.1 pM to 1.0 fM can be directly observed on the orifice of the electrophoretic nanocapillary. This is a 1000-fold improvement compared to traditional capillary electrophoresis with laser-induced fluorescence.
Collapse
Affiliation(s)
- Po-Ling Chang
- Department of Chemistry , Tunghai University , Taichung 40704 , Taiwan
| | - Michael Graf
- Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering , EPFL , 1015 Lausanne , Switzerland
| | - Chao-Hsuan Hung
- Department of Chemistry , Tunghai University , Taichung 40704 , Taiwan
| | - Aleksandra Radenovic
- Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering , EPFL , 1015 Lausanne , Switzerland
| |
Collapse
|
24
|
Pandey P, Panday N, Chang S, Pang P, Garcia J, Wang X, Fu Q, He J. Probing Dynamic Events of Dielectric Nanoparticles by a Nanoelectrode‐Nanopore Nanopipette. ChemElectroChem 2018. [DOI: 10.1002/celc.201800163] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Popular Pandey
- Physics Department Florida International University Miami 33199 United States
| | - Namuna Panday
- Physics Department Florida International University Miami 33199 United States
| | - Shuai Chang
- College of Materials and Metallurgy Wuhan University of Science and Technology Wuhan 430081 China
| | - Pei Pang
- Biodesign Institute Arizona State University Phoenix 85004 United States
| | - Javier Garcia
- Physics Department Florida International University Miami 33199 United States
| | - Xuewen Wang
- Physics Department Florida International University Miami 33199 United States
| | - Qiang Fu
- JiangXi College of Traditional Chinese Medicine Fuzhou 344000 China
| | - Jin He
- Physics Department Florida International University Miami 33199 United States
| |
Collapse
|
25
|
Little CA, Batchelor‐McAuley C, Ngamchuea K, Lin C, Young NP, Compton RG. Coupled Optical and Electrochemical Probing of Silver Nanoparticle Destruction in a Reaction Layer. ChemistryOpen 2018; 7:370-380. [PMID: 29872612 PMCID: PMC5974555 DOI: 10.1002/open.201800048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Indexed: 12/27/2022] Open
Abstract
The oxidation of silver nanoparticles is induced to occur near to, but not at, an electrode surface. This reaction at a distance from the electrode is studied through the use of dark-field microscopy, allowing individual nanoparticles and their reaction with the electrode product to be visualized. The oxidation product diffuses away from the electrode and oxidizes the nanoparticles in a reaction layer, resulting in their destruction. The kinetics of the silver nanoparticle solution-phase reaction is shown to control the length scale over which the nanoparticles react. In general, the new methodology offers a route by which nanoparticle reactivity can be studied close to an electrode surface.
Collapse
Affiliation(s)
- Christopher A. Little
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | | | - Kamonwad Ngamchuea
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | - Chuhong Lin
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | - Neil P. Young
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| | - Richard G. Compton
- Physical and Theoretical Chemistry LaboratoryOxford UniversitySouth Parks RoadOxfordOX1 3QZUnited Kingdom
| |
Collapse
|
26
|
Fu K, Bohn PW. Nanopore Electrochemistry: A Nexus for Molecular Control of Electron Transfer Reactions. ACS CENTRAL SCIENCE 2018; 4:20-29. [PMID: 29392173 PMCID: PMC5785767 DOI: 10.1021/acscentsci.7b00576] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Indexed: 05/12/2023]
Abstract
Pore-based structures occur widely in living organisms. Ion channels embedded in cell membranes, for example, provide pathways, where electron and proton transfer are coupled to the exchange of vital molecules. Learning from mother nature, a recent surge in activity has focused on artificial nanopore architectures to effect electrochemical transformations not accessible in larger structures. Here, we highlight these exciting advances. Starting with a brief overview of nanopore electrodes, including the early history and development of nanopore sensing based on nanopore-confined electrochemistry, we address the core concepts and special characteristics of nanopores in electron transfer. We describe nanopore-based electrochemical sensing and processing, discuss performance limits and challenges, and conclude with an outlook for next-generation nanopore electrode sensing platforms and the opportunities they present.
Collapse
Affiliation(s)
- Kaiyu Fu
- Department
of Chemistry and Biochemistry and Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Paul W. Bohn
- Department
of Chemistry and Biochemistry and Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- E-mail: . Tel: +1 574 631 1849. Fax: +1 574 631 8366
| |
Collapse
|
27
|
Abstract
Chemical activity of single nanoparticles can be imaged and determined by monitoring the optical signal of each individual during chemical reactions with advanced optical microscopes. It allows for clarifying the functional heterogeneity among individuals, and for uncovering the microscopic reaction mechanisms and kinetics that could otherwise be averaged out in ensemble measurements.
Collapse
Affiliation(s)
- Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| |
Collapse
|