1
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Liu L, Liu Z, Xu X, Wang J, Tong Z. Solid-state nanochannels based on electro-optical dual signals for detection of analytes. Talanta 2024; 279:126615. [PMID: 39096787 DOI: 10.1016/j.talanta.2024.126615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 07/09/2024] [Accepted: 07/23/2024] [Indexed: 08/05/2024]
Abstract
The sensitive detection of analytes of different sizes is crucial significance for environmental protection, food safety and medical diagnostics. The confined space of nanochannels provides a location closest to the molecular reaction behaviors in real systems, thereby opening new opportunities for the precise detection of analytes. However, due to the susceptibility to external interference on the confined space of nanochannels, the high sensitivity nature of the current signals through the nanochannels is more troubling for the detection reliability. Combining highly sensitive optical signals with the sensitive current signals of solid-state nanochannels establishes a nanochannel detection platform based on electro-optical dual signals, potentially offering more sensitive, specific, and accuracy detection of analytes. This review summarizes the last five years of applications of solid-state nanochannels based on electro-optical dual signals in analytes detection. Firstly, the detection principles of solid-state nanochannels and the construction strategies of nanochannel electro-optical sensing platforms are discussed. Subsequently, the review comprehensively outlines the applications involving nanochannels with electrical signals combined with fluorescence signals, electrical signals combined with surface-enhanced Raman spectroscopy signals, and electrical signals combined with other optical signals in analyte detection. Additionally, the perspectives and difficulties of nanochannels are investigated on the basis of electro-optical dual signals.
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Affiliation(s)
- Lingxiao Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Zhiwei Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Xinrui Xu
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Jiang Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Zhaoyang Tong
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China.
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2
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Wang Y, Yu Z, Smith CS, Caneva S. Site-Specific Integration of Hexagonal Boron Nitride Quantum Emitters on 2D DNA Origami Nanopores. NANO LETTERS 2024; 24:8510-8517. [PMID: 38856705 PMCID: PMC11261624 DOI: 10.1021/acs.nanolett.4c00673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 06/05/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
Optical emitters in hexagonal boron nitride (hBN) are promising probes for single-molecule sensing platforms. When engineered in nanoparticle form, they can be integrated as detectors in nanodevices, yet positional control at the nanoscale is lacking. Here we demonstrate the functionalization of DNA origami nanopores with optically active hBN nanoparticles (NPs) with nanometer precision. The NPs are active under three wavelengths of visible illumination and display both stable and blinking emission, enabling their accurate localization by using wide-field optical nanoscopy. Correlative opto-structural characterization reveals deterministic binding of bright, multicolor hBN NPs at the pore rim due to π-π stacking interactions at site-specific locations on the DNA origami. Our work provides a scalable, bottom-up approach toward deterministic assembly of solid-state emitters on arbitrary structural elements based on DNA origami. Such a nanoscale arrangement of optically active components can advance the development of single-molecule platforms, including optical nanopores and nanochannel sensors.
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Affiliation(s)
- Yabin Wang
- Department
of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628
CD, Delft, The Netherlands
- Delft
Center for Systems and Control, Delft University
of Technology, Mekelweg 2, 2628 CD Delft, Netherlands
| | - Ze Yu
- Department
of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628
CD, Delft, The Netherlands
| | - Carlas S. Smith
- Delft
Center for Systems and Control, Delft University
of Technology, Mekelweg 2, 2628 CD Delft, Netherlands
| | - Sabina Caneva
- Department
of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628
CD, Delft, The Netherlands
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3
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Cichos F, Xia T, Yang H, Zijlstra P. The ever-expanding optics of single-molecules and nanoparticles. J Chem Phys 2024; 161:010401. [PMID: 38949895 DOI: 10.1063/5.0221680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Accepted: 06/10/2024] [Indexed: 07/03/2024] Open
Affiliation(s)
- F Cichos
- Peter Debye Institute for Soft Matter Physics, Leipzig University, Leipzig, Germany
| | - T Xia
- Institute for Immunology, School of Medicine, Tsinghua University, Beijing, China
| | - H Yang
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
| | - P Zijlstra
- Department of Applied Physics and Science Education, Eindhoven University of Technology (TU/e), Eindhoven, The Netherlands
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4
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Banerjee A, Mathew S, Naqvi MM, Yilmaz SZ, Zacharopoulou M, Doruker P, Kumita JR, Yang SH, Gur M, Itzhaki LS, Gordon R, Bahar I. Influence of point mutations on PR65 conformational adaptability: Insights from molecular simulations and nanoaperture optical tweezers. SCIENCE ADVANCES 2024; 10:eadn2208. [PMID: 38820156 PMCID: PMC11141623 DOI: 10.1126/sciadv.adn2208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/29/2024] [Indexed: 06/02/2024]
Abstract
PR65 is the HEAT repeat scaffold subunit of the heterotrimeric protein phosphatase 2A (PP2A) and an archetypal tandem repeat protein. Its conformational mechanics plays a crucial role in PP2A function by opening/closing substrate binding/catalysis interface. Using in silico saturation mutagenesis, we identified PR65 "hinge" residues whose substitutions could alter its conformational adaptability and thereby PP2A function, and selected six mutations that were verified to be expressed and soluble. Molecular simulations and nanoaperture optical tweezers revealed consistent results on the specific effects of the mutations on the structure and dynamics of PR65. Two mutants observed in simulations to stabilize extended/open conformations exhibited higher corner frequencies and lower translational scattering in experiments, indicating a shift toward extended conformations, whereas another displayed the opposite features, confirmed by both simulations and experiments. The study highlights the power of single-molecule nanoaperture-based tweezers integrated with in silico approaches for exploring the effect of mutations on protein structure and dynamics.
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Affiliation(s)
- Anupam Banerjee
- Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, NY 11794, USA
| | - Samuel Mathew
- Department of Electrical and Computer Engineering, University of Victoria, Victoria V8P 5C2, Canada
| | - Mohsin M. Naqvi
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK
| | - Sema Z. Yilmaz
- Department of Mechanical Engineering, Istanbul Technical University, 34437 Istanbul, Turkey
| | - Maria Zacharopoulou
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK
| | - Pemra Doruker
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Janet R. Kumita
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK
| | - Shang-Hua Yang
- Department of Electrical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Mert Gur
- Department of Mechanical Engineering, Istanbul Technical University, 34437 Istanbul, Turkey
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Laura S. Itzhaki
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK
| | - Reuven Gordon
- Department of Electrical and Computer Engineering, University of Victoria, Victoria V8P 5C2, Canada
| | - Ivet Bahar
- Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, NY 11794, USA
- Department of Biochemistry and Cell Biology, School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
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5
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Zhang L, Wahab OJ, Jallow AA, O’Dell ZJ, Pungsrisai T, Sridhar S, Vernon KL, Willets KA, Baker LA. Recent Developments in Single-Entity Electrochemistry. Anal Chem 2024; 96:8036-8055. [PMID: 38727715 PMCID: PMC11112546 DOI: 10.1021/acs.analchem.4c01406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Affiliation(s)
- L. Zhang
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - O. J. Wahab
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - A. A. Jallow
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - Z. J. O’Dell
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - T. Pungsrisai
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - S. Sridhar
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - K. L. Vernon
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - K. A. Willets
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - L. A. Baker
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
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6
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Toodeshki E, Frencken AL, van Veggel FCJM, Gordon R. Thermometric Analysis of Nanoaperture-Trapped Erbium-Containing Nanocrystals. ACS PHOTONICS 2024; 11:1390-1395. [PMID: 38645996 PMCID: PMC11027910 DOI: 10.1021/acsphotonics.3c00467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 04/23/2024]
Abstract
Temperature changes in plasmonic traps can affect biomolecules and quantum emitters; therefore, several works have sought out the capability of measuring the local temperature. Those works used ionic nanopore currents, fluorescence emission variations, and fluorescence-based diffusion tracking to measure the temperature dependence of shaped nanoapertures in metal films. Here, we make use of a stable erbium-containing NaYF4 nanocrystal that gives local temperature dependence while trapped in the nanoaperture hot spot. Ratiometric analysis of the emission at different wavelengths gives local temperature variation. Since the gold film dominates the thermal characteristic, we find that films of thickness 70, 100, and 130 nm give 0.64, 0.37, and 0.25 K/mW temperature change with laser power. Therefore, using thicker films can be effective in reducing the heating when it is not desired.
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Affiliation(s)
- Elham
Hosseini Toodeshki
- Department
of Electrical and Computer Engineering, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
- Centre
for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia V8W 2Y2, Canada
| | - Adriaan L. Frencken
- Department
of Chemistry, University of Victoria, Victoria, British Columbia V8W 3 V6, Canada
- Centre
for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia V8W 2Y2, Canada
| | - Frank C. J. M. van Veggel
- Department
of Chemistry, University of Victoria, Victoria, British Columbia V8W 3 V6, Canada
- Centre
for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia V8W 2Y2, Canada
| | - Reuven Gordon
- Department
of Electrical and Computer Engineering, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
- Centre
for Advanced Materials & Related Technologies (CAMTEC), University of Victoria, Victoria, British Columbia V8W 2Y2, Canada
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7
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Zhang W, Chen M, Ma Q, Si Z, Jin S, Du Q, Zhang L, Huang Y, Xia F. Role of Outer Surface Probes on Bullet-Shaped Asymmetric Solid-State Nanochannels for Lysozyme Protein Sensing. Anal Chem 2024; 96:2445-2454. [PMID: 38293730 DOI: 10.1021/acs.analchem.3c04413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Artificial solid-state nanochannels featuring precise partitions present a highly promising platform for biomarker detection. While the significance of probes on the outer surface (POS) has been relatively overlooked in the past, our research highlights their crucial role in biosensing. Furthermore, the contribution of POS on the bullet-shaped asymmetric nanochannels has not been extensively explored until now. Here, we fabricated a series of bullet-shaped nanochannels, each featuring a distinct asymmetric structure characterized by different tip- and base-pore diameters. These nanochannels were further modified with explicit distributions at the inner wall (PIW), the outer surface (POS), and their combination (POS + PIW) for lysozyme sensing. The impact of diameters, structural asymmetry, and surface charge density on the sensing efficacy of POS and PIW was thoroughly examined through experimental investigations and numerical simulations. POS demonstrates great individual sensing performance for lysozyme within a broad concentration range, spanning from 10 nM to 1 mM. Furthermore, it improves the sensitivity when combined with PIW, particularly within the nanochannels featuring the smaller base-pore diameter, resulting in a 2-fold increase in sensing performance for POS + PIW compared to PIW at a concentration of 10 nM. These findings are substantiated by numerical simulations that closely align with the experimental parameters. The contributions of POS are notably amplified in the presence of smaller base pores and a higher degree of asymmetry within the bullet-shaped nanochannels. These findings elucidate the mechanism underlying the role of POS within bullet-shaped asymmetric nanochannels and open up new avenues for manipulating and enhancing the sensing efficiency.
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Affiliation(s)
- Weiwei Zhang
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, P. R. China
| | - Miaoyu Chen
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, P. R. China
| | - Qun Ma
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Zhixiao Si
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Sanmei Jin
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, P. R. China
| | - Qiujiao Du
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, P. R. China
| | - Limin Zhang
- School of Electronic Science and Engineering, Nanjing University, Nanjing 210046, P. R. China
| | - Yu Huang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
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8
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Wang H, Wang T, Yuan X, Wang Y, Yue X, Wang L, Zhang J, Wang J. Plasmonic Nanostructure Biosensors: A Review. SENSORS (BASEL, SWITZERLAND) 2023; 23:8156. [PMID: 37836985 PMCID: PMC10575025 DOI: 10.3390/s23198156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
Plasmonic nanostructure biosensors based on metal are a powerful tool in the biosensing field. Surface plasmon resonance (SPR) can be classified into localized surface plasmon resonance (LSPR) and propagating surface plasmon polariton (PSPP), based on the transmission mode. Initially, the physical principles of LSPR and PSPP are elaborated. In what follows, the recent development of the biosensors related to SPR principle is summarized. For clarity, they are categorized into three groups according to the sensing principle: (i) inherent resonance-based biosensors, which are sensitive to the refractive index changes of the surroundings; (ii) plasmon nanoruler biosensors in which the distances of the nanostructure can be changed by biomolecules at the nanoscale; and (iii) surface-enhanced Raman scattering biosensors in which the nanostructure serves as an amplifier for Raman scattering signals. Moreover, the advanced application of single-molecule detection is discussed in terms of metal nanoparticle and nanopore structures. The review concludes by providing perspectives on the future development of plasmonic nanostructure biosensors.
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Affiliation(s)
- Huimin Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
| | - Tao Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
| | - Xuyang Yuan
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
| | - Yuandong Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
| | - Xinzhao Yue
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
| | - Lu Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
| | - Jinyan Zhang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
| | - Jian Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (H.W.); (X.Y.); (Y.W.); (X.Y.); (L.W.); (J.Z.)
- Optics Valley Laboratory, Wuhan 430074, China
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Choi S, Park J, Chew SH, Khurelbaatar T, Gliserin A, Kim S, Kim DE. Near- and far-field study of polarization-dependent surface plasmon resonance in bowtie nano-aperture arrays. OPTICS EXPRESS 2023; 31:31760-31767. [PMID: 37858993 DOI: 10.1364/oe.497045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/08/2023] [Indexed: 10/21/2023]
Abstract
Bowtie nano-apertures can confine light into deep subwavelength volumes with extreme field enhancement, making them a useful tool for various applications such as optical trapping, deep subwavelength imaging, nanolithography, and sensors. However, the correlation between the near- and far-field properties of bowtie nano-aperture arrays has yet to be fully explored. In this study, we experimentally investigated the polarization-dependent surface plasmon resonance in bowtie nano-aperture arrays using both optical transmission spectroscopy and photoemission electron microscopy. The experimental results reveal a nonlinear redshift in the transmission spectra as the gap size of the bowtie nanoaperture decreases for vertically polarized light, while the transmission spectra remain unchanged with different gap sizes for horizontally polarized light. To elucidate the underlying mechanisms, we present simulated charge and current distributions, revealing how the electrons respond to light and generate the plasmonic fields. These near-field distributions were verified by photoemission electron microscopy. This study provides a comprehensive understanding of the plasmonic properties of bowtie nano-aperture, enabling their further applications, one of which is the optical switching of the resonance wavelength in the widely used visible spectral region without changing the geometry of the nanostructure.
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10
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Liu N, Wang S, Lv J, Zhang J. Achiral nanoparticle trapping and chiral nanoparticle separating with quasi-BIC metasurface. OPTICS EXPRESS 2023; 31:28912-28928. [PMID: 37710700 DOI: 10.1364/oe.497432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/18/2023] [Indexed: 09/16/2023]
Abstract
Dielectric metasurfaces based on quasi-bound states in the continuum (quasi-BICs) are a promising approach for manipulating light-matter interactions. In this study, we numerically demonstrate the potential of silicon elliptical tetramer dielectric metasurfaces for achirality nanoparticle trapping and chiral nanoparticle separation. We first analyze a symmetric tetramer metasurface, which exhibits dual resonances (P1 and P2) with high electromagnetic field intensity enhancement and a high-quality factor (Q-factor). This metasurface can trap achiral nanoparticles with a maximum optical trapping force of 35 pN for 20 nm particles at an input intensity of 100 mW. We then investigate an asymmetric tetramer metasurface, which can identify and separate enantiomers under the excitation of left-handed circularly polarized (LCP) light. Results show that the chiral optical force can push one enantiomer towards regions of the quasi-BIC system while removing the other. In addition, the proposed asymmetric tetramer metasurface can provide multiple Fano resonances (ranging from R1 to R5) and high trap potential wells of up to 33 kBT. Our results demonstrate that the proposed all-dielectric metasurface has high performance in nanoparticle detection, with potential applications in biology, life science, and applied physics.
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11
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Kollipara PS, Chen Z, Zheng Y. Optical Manipulation Heats up: Present and Future of Optothermal Manipulation. ACS NANO 2023; 17:7051-7063. [PMID: 37022087 PMCID: PMC10197158 DOI: 10.1021/acsnano.3c00536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Optothermal manipulation is a versatile technique that combines optical and thermal forces to control synthetic micro-/nanoparticles and biological entities. This emerging technique overcomes the limitations of traditional optical tweezers, including high laser power, photon and thermal damage to fragile objects, and the requirement of refractive-index contrast between target objects and the surrounding solvents. In this perspective, we discuss how the rich opto-thermo-fluidic multiphysics leads to a variety of working mechanisms and modes of optothermal manipulation in both liquid and solid media, underpinning a broad range of applications in biology, nanotechnology, and robotics. Moreover, we highlight current experimental and modeling challenges in the pursuit of optothermal manipulation and propose future directions and solutions to the challenges.
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Affiliation(s)
- Pavana Siddhartha Kollipara
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas, 78712, United States
| | - Zhihan Chen
- Materials Science and Engineering program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yuebing Zheng
- Materials Science and Engineering program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
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12
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Pan W, You R, Zhang S, Chang Y, Zhou F, Li Q, Chen X, Duan X, Han Z. Tunable nanochannel resistive pulse sensing device using a novel multi-module self-assembly. Anal Chim Acta 2023; 1251:341035. [PMID: 36925301 DOI: 10.1016/j.aca.2023.341035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/21/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023]
Abstract
Nanochannel-based resistive pulse sensing (nano-RPS) system is widely used for the high-sensitive measurement and characterization of nanoscale biological particles and biomolecules due to its high surface to volume ratio. However, the geometric dimensions and surface properties of nanochannel are usually fixed, which limit the detections within particular ranges or types of nanoparticles. In order to improve the flexibility of nano-RPS system, it is of great significance to develop nanochannels with tunable dimensions and surface properties. In this work, we proposed a novel multi-module self-assembly (MS) strategy which allows to shrink the geometric dimensions and tune surface properties of the nanochannels simultaneously. The MS-tuned nano-RPS device exhibits an enhanced signal-to-noise ratio (SNR) for nanoparticle detections after shrunk the geometric dimensions by MS strategy. Meanwhile, by tuning the surface charge, an enhanced resolution for viral particles detection was achieved with the MS-tuned nano-RPS devices by analyzing the variation of pulse width due the tuned surface charge. The proposed MS strategy is versatile for various types of surface materials and can be potentially applied for nanoscale surface reconfiguration in various nanofluidic devices.
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Affiliation(s)
- Wenwei Pan
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Rui You
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Shuaihua Zhang
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Ye Chang
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Feng Zhou
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Quanning Li
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Xuejiao Chen
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China.
| | - Ziyu Han
- State Key Laboratory of Precision Measuring Technology & Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China.
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13
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Babaei E, Wright D, Gordon R. Fringe Dielectrophoresis Nanoaperture Optical Trapping with Order of Magnitude Speed-Up for Unmodified Proteins. NANO LETTERS 2023; 23:2877-2882. [PMID: 36999922 DOI: 10.1021/acs.nanolett.3c00208] [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: 06/19/2023]
Abstract
Single molecule analysis of proteins in an aqueous environment without modification (e.g., labels or tethers) elucidates their biophysics and interactions relevant to drug discovery. By combining fringe-field dielectrophoresis with nanoaperture optical tweezers we demonstrate an order of magnitude faster time-to-trap for proteins when the counter electrode is outside of the solution. When the counter electrode is inside the solution (the more common configuration found in the literature), electrophoresis speeds up the trapping of polystyrene nanospheres, but this was not effective for proteins in general. Since time-to-trap is critical for high-thoughput analysis, these findings are a major advancement to the nanoaperture optical trapping technique for protein analysis.
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Affiliation(s)
- Elham Babaei
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC, Canada V8P5C2
| | - Demelza Wright
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC, Canada V8P5C2
| | - Reuven Gordon
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Road, Victoria, BC, Canada V8P5C2
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14
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Bošković F, Zhu J, Tivony R, Ohmann A, Chen K, Alawami MF, Đorđević M, Ermann N, Pereira-Dias J, Fairhead M, Howarth M, Baker S, Keyser UF. Simultaneous identification of viruses and viral variants with programmable DNA nanobait. NATURE NANOTECHNOLOGY 2023; 18:290-298. [PMID: 36646828 PMCID: PMC10020084 DOI: 10.1038/s41565-022-01287-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/07/2022] [Indexed: 05/31/2023]
Abstract
Respiratory infections are the major cause of death from infectious disease worldwide. Multiplexed diagnostic approaches are essential as many respiratory viruses have indistinguishable symptoms. We created self-assembled DNA nanobait that can simultaneously identify multiple short RNA targets. The nanobait approach relies on specific target selection via toehold-mediated strand displacement and rapid readout via nanopore sensing. Here we show that this platform can concurrently identify several common respiratory viruses, detecting a panel of short targets of viral nucleic acids from multiple viruses. Our nanobait can be easily reprogrammed to discriminate viral variants with single-nucleotide resolution, as we demonstrated for several key SARS-CoV-2 variants. Last, we show that the nanobait discriminates between samples extracted from oropharyngeal swabs from negative- and positive-SARS-CoV-2 patients without preamplification. Our system allows for the multiplexed identification of native RNA molecules, providing a new scalable approach for the diagnostics of multiple respiratory viruses in a single assay.
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Affiliation(s)
- Filip Bošković
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Jinbo Zhu
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Ran Tivony
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | | | - Kaikai Chen
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | | | - Milan Đorđević
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Niklas Ermann
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Joana Pereira-Dias
- University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Hills Road, Cambridge, UK
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Hills Road, Cambridge, UK
| | | | - Mark Howarth
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Stephen Baker
- University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Hills Road, Cambridge, UK
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Hills Road, Cambridge, UK
| | - Ulrich F Keyser
- Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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15
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Khosravi B, Gordon R. Reflection mode optical trapping using polarization symmetry breaking from tilted double nanoholes. OPTICS EXPRESS 2023; 31:2621-2627. [PMID: 36785271 DOI: 10.1364/oe.480802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/26/2022] [Indexed: 06/18/2023]
Abstract
We demonstrate reflection geometry optical trapping using double nanoholes in a metal film. Symmetry breaking of the double nanohole allows for selecting the scattered trapping laser light of orthogonal polarization to the incident beam. This orthogonal polarization light shows a few percent increase when the nanoparticle (e.g., a 20 nm polystyrene particle, or protein bovine serum albumin) is trapped. The reflection geometry simplifies the optical setup and frees up one side of the trap, which has great potential for adding microfluidics to the other side or working with opaque or highly scattering samples.
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16
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Xu X, Valavanis D, Ciocci P, Confederat S, Marcuccio F, Lemineur JF, Actis P, Kanoufi F, Unwin PR. The New Era of High-Throughput Nanoelectrochemistry. Anal Chem 2023; 95:319-356. [PMID: 36625121 PMCID: PMC9835065 DOI: 10.1021/acs.analchem.2c05105] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiangdong Xu
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | | | - Paolo Ciocci
- Université
Paris Cité, ITODYS, CNRS, F-75013 Paris, France
| | - Samuel Confederat
- School
of Electronic and Electrical Engineering and Pollard Institute, University of Leeds, Leeds LS2 9JT, U.K.,Bragg
Centre for Materials Research, University
of Leeds, Leeds LS2 9JT, U.K.
| | - Fabio Marcuccio
- School
of Electronic and Electrical Engineering and Pollard Institute, University of Leeds, Leeds LS2 9JT, U.K.,Bragg
Centre for Materials Research, University
of Leeds, Leeds LS2 9JT, U.K.,Faculty
of Medicine, Imperial College London, London SW7 2AZ, United Kingdom
| | | | - Paolo Actis
- School
of Electronic and Electrical Engineering and Pollard Institute, University of Leeds, Leeds LS2 9JT, U.K.,Bragg
Centre for Materials Research, University
of Leeds, Leeds LS2 9JT, U.K.,
| | | | - Patrick R. Unwin
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.,
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17
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Azeem MM, Shafa M, Aamir M, Zubair M, Souayeh B, Alam MW. Nucleotide detection mechanism and comparison based on low-dimensional materials: A review. Front Bioeng Biotechnol 2023; 11:1117871. [PMID: 36937765 PMCID: PMC10018150 DOI: 10.3389/fbioe.2023.1117871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
The recent pandemic has led to the fabrication of new nucleic acid sensors that can detect infinitesimal limits immediately and effectively. Therefore, various techniques have been demonstrated using low-dimensional materials that exhibit ultrahigh detection and accuracy. Numerous detection approaches have been reported, and new methods for impulse sensing are being explored. All ongoing research converges at one unique point, that is, an impetus: the enhanced limit of detection of sensors. There are several reviews on the detection of viruses and other proteins related to disease control point of care; however, to the best of our knowledge, none summarizes the various nucleotide sensors and describes their limits of detection and mechanisms. To understand the far-reaching impact of this discipline, we briefly discussed conventional and nanomaterial-based sensors, and then proposed the feature prospects of these devices. Two types of sensing mechanisms were further divided into their sub-branches: polymerase chain reaction and photospectrometric-based sensors. The nanomaterial-based sensor was further subdivided into optical and electrical sensors. The optical sensors included fluorescence (FL), surface plasmon resonance (SPR), colorimetric, and surface-enhanced Raman scattering (SERS), while electrical sensors included electrochemical luminescence (ECL), microfluidic chip, and field-effect transistor (FET). A synopsis of sensing materials, mechanisms, detection limits, and ranges has been provided. The sensing mechanism and materials used were discussed for each category in terms of length, collectively forming a fusing platform to highlight the ultrahigh detection technique of nucleotide sensors. We discussed potential trends in improving the fabrication of nucleotide nanosensors based on low-dimensional materials. In this area, particular aspects, including sensitivity, detection mechanism, stability, and challenges, were addressed. The optimization of the sensing performance and selection of the best sensor were concluded. Recent trends in the atomic-scale simulation of the development of Deoxyribonucleic acid (DNA) sensors using 2D materials were highlighted. A critical overview of the challenges and opportunities of deoxyribonucleic acid sensors was explored, and progress made in deoxyribonucleic acid detection over the past decade with a family of deoxyribonucleic acid sensors was described. Areas in which further research is needed were included in the future scope.
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Affiliation(s)
- M. Mustafa Azeem
- Department of Civil, Architectural, and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO, United States
- *Correspondence: M. Mustafa Azeem, ; Muhammad Aamir,
| | - Muhammad Shafa
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Devices, Kunming University, Kunming, Yunnan, China
| | - Muhammad Aamir
- Department of Basic Science, Deanship of Preparatory Year, King Faisal University, Hofuf, Saudi Arabia
- *Correspondence: M. Mustafa Azeem, ; Muhammad Aamir,
| | - Muhammad Zubair
- Mechanical and Nuclear Engineering Department, University of Sharjah, Sharjah, United Arab Emirates
| | - Basma Souayeh
- Department of Physics, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
| | - Mir Waqas Alam
- Department of Physics, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
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18
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Ying C, Ma T, Xu L, Rahmani M. Localized Nanopore Fabrication via Controlled Breakdown. NANOMATERIALS 2022; 12:nano12142384. [PMID: 35889608 PMCID: PMC9323289 DOI: 10.3390/nano12142384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 12/03/2022]
Abstract
Nanopore sensors provide a unique platform to detect individual nucleic acids, proteins, and other biomolecules without the need for fluorescent labeling or chemical modifications. Solid-state nanopores offer the potential to integrate nanopore sensing with other technologies such as field-effect transistors (FETs), optics, plasmonics, and microfluidics, thereby attracting attention to the development of commercial instruments for diagnostics and healthcare applications. Stable nanopores with ideal dimensions are particularly critical for nanopore sensors to be integrated into other sensing devices and provide a high signal-to-noise ratio. Nanopore fabrication, although having benefited largely from the development of sophisticated nanofabrication techniques, remains a challenge in terms of cost, time consumption and accessibility. One of the latest developed methods—controlled breakdown (CBD)—has made the nanopore technique broadly accessible, boosting the use of nanopore sensing in both fundamental research and biomedical applications. Many works have been developed to improve the efficiency and robustness of pore formation by CBD. However, nanopores formed by traditional CBD are randomly positioned in the membrane. To expand nanopore sensing to a wider biomedical application, controlling the localization of nanopores formed by CBD is essential. This article reviews the recent strategies to control the location of nanopores formed by CBD. We discuss the fundamental mechanism and the efforts of different approaches to confine the region of nanopore formation.
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Affiliation(s)
- Cuifeng Ying
- Advanced Optics and Photonics Laboratory, Department of Engineering, School of Science &Technology, Nottingham Trent University, Nottingham NG1 4FQ, UK; (L.X.); (M.R.)
- Correspondence:
| | - Tianji Ma
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China;
| | - Lei Xu
- Advanced Optics and Photonics Laboratory, Department of Engineering, School of Science &Technology, Nottingham Trent University, Nottingham NG1 4FQ, UK; (L.X.); (M.R.)
| | - Mohsen Rahmani
- Advanced Optics and Photonics Laboratory, Department of Engineering, School of Science &Technology, Nottingham Trent University, Nottingham NG1 4FQ, UK; (L.X.); (M.R.)
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19
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Meng L, Huang J, He Z, Zhou R. Single nucleobase identification for transversally-confined ssDNA using longitudinal ionic currents. NANOSCALE 2022; 14:6922-6929. [PMID: 35452063 DOI: 10.1039/d1nr07116e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
High-fidelity DNA sequencing using solid-state nanopores remains a big challenge, partly due to difficulties related to efficient molecular capture and subsequent control of the dwell time. To help address these issues, here we propose a sequencing platform consisting of stacked two-dimensional materials with tailored structures containing a funnel-shaped step defect and a nanopore drilled inside the nanochannel. Our all-atom molecular dynamics (MD) simulations showed that, assisted by the step defect, single-stranded DNA (ssDNA) can be transported to the nanopore in a deterministic way by pulsed transversal electric fields. Furthermore, different types of DNA bases can reside in the pore for a sufficiently long time which can be successfully differentiated by longitudinal ionic currents. By using the decoupled driving forces for ssDNA transport and ionic current measurements, this approach holds potential for high-fidelity DNA sequencing.
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Affiliation(s)
- Lijun Meng
- Institute of Quantitative Biology, Shanghai Institute for Advanced Study, College of Life Sciences, and Department of Physics, Zhejiang University, Hangzhou 310027, China.
| | - Jianxiang Huang
- Institute of Quantitative Biology, Shanghai Institute for Advanced Study, College of Life Sciences, and Department of Physics, Zhejiang University, Hangzhou 310027, China.
| | - Zhi He
- Institute of Quantitative Biology, Shanghai Institute for Advanced Study, College of Life Sciences, and Department of Physics, Zhejiang University, Hangzhou 310027, China.
| | - Ruhong Zhou
- Institute of Quantitative Biology, Shanghai Institute for Advanced Study, College of Life Sciences, and Department of Physics, Zhejiang University, Hangzhou 310027, China.
- Department of Chemistry, Colombia University, New York, NY 10027, USA
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20
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Manzato G, Giordano MC, Barelli M, Chowdhury D, Centini M, de Mongeot FB. Free-standing plasmonic nanoarrays for leaky optical waveguiding and sensing. OPTICS EXPRESS 2022; 30:17371-17382. [PMID: 36221562 DOI: 10.1364/oe.453135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/22/2022] [Indexed: 06/16/2023]
Abstract
Flat optics nanogratings supported on thin free-standing membranes offer the opportunity to combine narrowband waveguided modes and Rayleigh anomalies for sensitive and tunable biosensing. At the surface of high-refractive index Si3N4 membranes we engineered lithographic nanogratings based on plasmonic nanostripes, demonstrating the excitation of sharp waveguided modes and lattice resonances. We achieved fine tuning of these optical modes over a broadband Visible and Near-Infrared spectrum, in full agreement with numerical calculations. This possibility allowed us to select sharp waveguided modes supporting strong near-field amplification, extending for hundreds of nanometres out of the grating and enabling versatile biosensing applications. We demonstrate the potential of this flat-optics platform by devising a proof-of-concept nanofluidic refractive index sensor exploiting the long-range waveguided mode operating at the sub-picoliter scale. This free-standing device configuration, that could be further engineered at the nanoscale, highlights the strong potential of flat-optics nanoarrays in optofluidics and nanofluidic biosensing.
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21
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Wada T, Ishihara H. Optical force spectroscopy for measurement of nonlinear optical coefficient of single nanoparticles through optical manipulation. OPTICS EXPRESS 2022; 30:17490-17516. [PMID: 36221571 DOI: 10.1364/oe.456122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/11/2022] [Indexed: 06/16/2023]
Abstract
Compared with manipulation of microparticles with optical tweezers and control of atomic motion with atom cooling, the manipulation of nanoscale objects is challenging because light exerts a significantly weaker force on nanoparticles than on microparticles. The complex interaction of nanoparticles with the environmental solvent media adds to this challenge. In recent years, optical manipulation using electronic resonance effects has garnered interest because it has enabled researchers to enhance the force as well as sort nanoparticles by their quantum mechanical properties. Especially, a precise observation of the motion of nanoparticles irradiated by resonant light enables the precise measurement of the material parameters of single nanoparticles. Conventional spectroscopic methods of measurement are based on indirect processes involving energy dissipation, such as thermal dissipation and light scattering. This study proposes a theoretical method to measure the nonlinear optical constant based on the optical force. The nonlinear susceptibility of single nanoparticles can be directly measured by evaluating the transportation distance of particles through pure momentum exchange. We extrapolate an experimentally verified method of measuring the linear absorption coefficient of single nanoparticles by the optical force to determine the nonlinear absorption coefficient. To this end, we simulate the third-order nonlinear susceptibility of the target particles with the kinetic analysis of nanoparticles at the solid-liquid interface incorporating the Brownian motion. The results show that optical manipulation can be used as nonlinear optical spectroscopy utilizing direct exchange of momentum. To the best of our knowledge, this is currently the only way to measure the nonlinear coefficient of individual single nanoparticles.
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22
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Zhao Y, Iarossi M, De Fazio AF, Huang JA, De Angelis F. Label-Free Optical Analysis of Biomolecules in Solid-State Nanopores: Toward Single-Molecule Protein Sequencing. ACS PHOTONICS 2022; 9:730-742. [PMID: 35308409 PMCID: PMC8931763 DOI: 10.1021/acsphotonics.1c01825] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
Sequence identification of peptides and proteins is central to proteomics. Protein sequencing is mainly conducted by insensitive mass spectroscopy because proteins cannot be amplified, which hampers applications such as single-cell proteomics and precision medicine. The commercial success of portable nanopore sequencers for single DNA molecules has inspired extensive research and development of single-molecule techniques for protein sequencing. Among them, three challenges remain: (1) discrimination of the 20 amino acids as building blocks of proteins; (2) unfolding proteins; and (3) controlling the motion of proteins with nonuniformly charged sequences. In this context, the emergence of label-free optical analysis techniques for single amino acids and peptides by solid-state nanopores shows promise for addressing the first challenge. In this Perspective, we first discuss the current challenges of single-molecule fluorescence detection and nanopore resistive pulse sensing in a protein sequencing. Then, label-free optical methods are described to show how they address the single-amino-acid identification within single peptides. They include localized surface plasmon resonance detection and surface-enhanced Raman spectroscopy on plasmonic nanopores. Notably, we report new data to show the ability of plasmon-enhanced Raman scattering to record and discriminate the 20 amino acids at a single-molecule level. In addition, we discuss briefly the manipulation of molecule translocation and liquid flow in plasmonic nanopores for controlling molecule movement to allow high-resolution reading of protein sequences. We envision that a combination of Raman spectroscopy with plasmonic nanopores can succeed in single-molecule protein sequencing in a label-free way.
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Affiliation(s)
- Yingqi Zhao
- Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Marzia Iarossi
- Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | | | - Jian-An Huang
- Faculty
of Medicine, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Aapistie 5 A, 90220 Oulu, Finland
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23
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Fried JP, Wu Y, Tilley RD, Gooding JJ. Optical Nanopore Sensors for Quantitative Analysis. NANO LETTERS 2022; 22:869-880. [PMID: 35089719 DOI: 10.1021/acs.nanolett.1c03976] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nanopore sensors have received significant interest for the detection of clinically important biomarkers with single-molecule resolution. These sensors typically operate by detecting changes in the ionic current through a nanopore due to the translocation of an analyte. Recently, there has been interest in developing optical readout strategies for nanopore sensors for quantitative analysis. This is because they can utilize wide-field microscopy to independently monitor many nanopores within a high-density array. This significantly increases the amount of statistics that can be obtained, thus enabling the analysis of analytes present at ultralow concentrations. Here, we review the use of optical nanopore sensing strategies for quantitative analysis. We discuss optical nanopore sensing assays that have been developed to detect clinically relevant biomarkers, the potential for multiplexing such measurements, and techniques to fabricate high density arrays of nanopores with a view toward the use of these devices for clinical applications.
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Affiliation(s)
- Jasper P Fried
- School of Chemistry, Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yanfang Wu
- School of Chemistry, Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Richard D Tilley
- School of Chemistry, Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - J Justin Gooding
- School of Chemistry, Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
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24
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Zhang M, Chen C, Zhang Y, Geng J. Biological nanopores for sensing applications. Proteins 2022; 90:1786-1799. [PMID: 35092317 DOI: 10.1002/prot.26308] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/27/2021] [Accepted: 01/27/2022] [Indexed: 02/05/2023]
Abstract
Biological nanopores are proteins with transmembrane pore that can be embedded in lipid bilayer. With the development of single-channel current measurement technologies, biological nanopores have been reconstituted into planar lipid bilayer and used for single-molecule sensing of various analytes and events such as single-molecule DNA sensing and sequencing. To improve the sensitivity for specific analytes, various engineered nanopore proteins and strategies are deployed. Here, we introduce the origin and principle of nanopore sensing technology as well as the structure and associated properties of frequently used protein nanopores. Furthermore, sensing strategies for different applications are reviewed, with focus on the alteration of buffer condition, protein engineering, and deployment of accessory proteins and adapter-assisted sensing. Finally, outlooks for de novo design of nanopore and nanopore beyond sensing are discussed.
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Affiliation(s)
- Ming Zhang
- Department of Laboratory Medicine, Med-X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, China
| | - Chen Chen
- Department of Laboratory Medicine, Med-X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, China
| | - Yanjing Zhang
- Department of Laboratory Medicine, Med-X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, China
| | - Jia Geng
- Department of Laboratory Medicine, Med-X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, China
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25
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Li W, Zhou J, Maccaferri N, Krahne R, Wang K, Garoli D. Enhanced Optical Spectroscopy for Multiplexed DNA and Protein-Sequencing with Plasmonic Nanopores: Challenges and Prospects. Anal Chem 2022; 94:503-514. [PMID: 34974704 PMCID: PMC8771637 DOI: 10.1021/acs.analchem.1c04459] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Wang Li
- State
Key Laboratory of Analytical Chemistry for Life Science School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, P. R. China
| | - Juan Zhou
- State
Key Laboratory of Analytical Chemistry for Life Science School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, P. R. China
| | - Nicolò Maccaferri
- Department
of Physics and Materials Science, University
of Luxembourg, L-1511 Luxembourg, Luxembourg
- Department
of Physics, Umeå University, Linnaeus väg 20, SE-90736 Umeå, Sweden
| | - Roman Krahne
- Istituto
Italiano di Tecnologia, Optoelectronics
Research Line, Morego
30, I-16163 Genova, Italy
| | - Kang Wang
- State
Key Laboratory of Analytical Chemistry for Life Science School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, P. R. China
| | - Denis Garoli
- Istituto
Italiano di Tecnologia, Optoelectronics
Research Line, Morego
30, I-16163 Genova, Italy
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26
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Yang JM, Feng JD. Progress on optical measurements in single-molecule analysis with nanopores. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2021-1133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Peri SSS, Raza MU, Sabnani MK, Ghaffari S, Gimlin S, Wawro DD, Lee JS, Kim MJ, Weidanz J, Alexandrakis G. Self-Induced Back-Action Actuated Nanopore Electrophoresis (SANE) Sensor for Label-Free Detection of Cancer Immunotherapy-Relevant Antibody-Ligand Interactions. Methods Mol Biol 2022; 2394:343-376. [PMID: 35094337 PMCID: PMC9207820 DOI: 10.1007/978-1-0716-1811-0_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We fabricated a novel single molecule nanosensor by integrating a solid-state nanopore and a double nanohole nanoaperture. The nanosensor employs Self-Induced Back-Action (SIBA) for optical trapping and enables SIBA-Actuated Nanopore Electrophoresis (SANE) for concurrent acquisition of bimodal optical and electrical signatures of molecular interactions. This work describes how to fabricate and use the SANE sensor to quantify antibody-ligand interactions. We describe how to analyze the bimodal optical-electrical data to improve upon the discrimination of antibody and ligand versus bound complex compared to electrical measurements alone. Example results for specific interaction detection are described for T-cell receptor-like antibodies (TCRmAbs) engineered to target peptide-presenting Major Histocompatibility Complex (pMHC) ligands, representing a model of target ligands presented on the surface of cancer cells. We also describe how to analyze the bimodal optical-electrical data to discriminate between specific and non-specific interactions between antibodies and ligands. Example results for non-specific interactions are shown for cancer-irrelevant TCRmAbs targeting the same pMHCs, as a control. These example results demonstrate the utility of the SANE sensor as a potential screening tool for ligand targets in cancer immunotherapy, though we believe that its potential uses are much broader.
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Affiliation(s)
| | - Muhammad Usman Raza
- Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX, USA
| | - Manoj K Sabnani
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | - Soroush Ghaffari
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | | | - Debra D Wawro
- Resonant Sensors Incorporated (RSI), Arlington, TX, USA
| | - Jung Soo Lee
- Department of Mechanical Engineering, Southern Methodist University, Dallas, TX, USA
| | - Min Jun Kim
- Department of Mechanical Engineering, Southern Methodist University, Dallas, TX, USA
| | - Jon Weidanz
- Department of Kinesiology, University of Texas at Arlington, Arlington, TX, USA
| | - George Alexandrakis
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, USA.
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28
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Yang W, van Dijk M, Primavera C, Dekker C. FIB-milled plasmonic nanoapertures allow for long trapping times of individual proteins. iScience 2021; 24:103237. [PMID: 34746702 PMCID: PMC8551080 DOI: 10.1016/j.isci.2021.103237] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/15/2021] [Accepted: 10/04/2021] [Indexed: 11/18/2022] Open
Abstract
We have developed a fabrication methodology for label-free optical trapping of individual nanobeads and proteins in inverted-bowtie-shaped plasmonic gold nanopores. Arrays of these nanoapertures can be reliably produced using focused ion beam (FIB) milling with gap sizes of 10–20 nm, single-nanometer variation, and with a remarkable stability that allows for repeated use. We employ an optical readout where the presence of the protein entering the trap is marked by an increase in the transmission of light through the nanoaperture from the shift of the plasmonic resonance. In addition, the optical trapping force of the plasmonic nanopores allows 20-nm polystyrene beads and proteins, such as beta-amylase and Heat Shock Protein (HSP90), to be trapped for very long times (approximately minutes). On demand, we can release the trapped molecule for another protein to be interrogated. Our work opens up new routes to acquire information on the conformation and dynamics of individual proteins. We demonstrate fabrication of arrays of inverted-bowtie-shaped plasmonic gold nanopores Arrays (>64) of bowties with 10 to 20-nm size gap and single-nanometer variation can be produced We optically tweeze and detect single 20-nm polystyrene beads and individual proteins Our system allows for long observations (approximately minutes) of protein dynamics
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Affiliation(s)
- Wayne Yang
- Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands
| | - Madeleine van Dijk
- Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands
| | - Christian Primavera
- Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands
| | - Cees Dekker
- Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands
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Baaske M, Asgari N, Spaeth P, Adhikari S, Punj D, Orrit M. Photothermal Spectro-Microscopy as Benchmark for Optoplasmonic Bio-Detection Assays. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:25087-25093. [PMID: 34824661 PMCID: PMC8607500 DOI: 10.1021/acs.jpcc.1c07592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/25/2021] [Indexed: 06/13/2023]
Abstract
Optoplasmonic bio-detection assays commonly probe the response of plasmonic nanostructures to changes in their dielectric environment. The accurate detection of nanoscale entities such as virus particles, micelles and proteins requires optimization of multiple experimental parameters. Performing such optimization directly via analyte recognition is often not desirable or feasible, especially if the nanostructures exhibit limited numbers of analyte binding sites and if binding is irreversible. Here we introduce photothermal spectro-microscopy as a benchmarking tool for the characterization and optimization of optoplasmonic detection assays.
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Affiliation(s)
- Martin.
D. Baaske
- Huygens-Kamerlingh Onnes
Laboratory, Leiden University, Postbus 9504, 2300 RA Leiden, The Netherlands
| | - Nasrin Asgari
- Huygens-Kamerlingh Onnes
Laboratory, Leiden University, Postbus 9504, 2300 RA Leiden, The Netherlands
| | - Patrick Spaeth
- Huygens-Kamerlingh Onnes
Laboratory, Leiden University, Postbus 9504, 2300 RA Leiden, The Netherlands
| | - Subhasis Adhikari
- Huygens-Kamerlingh Onnes
Laboratory, Leiden University, Postbus 9504, 2300 RA Leiden, The Netherlands
| | - Deep Punj
- Huygens-Kamerlingh Onnes
Laboratory, Leiden University, Postbus 9504, 2300 RA Leiden, The Netherlands
| | - Michel Orrit
- Huygens-Kamerlingh Onnes
Laboratory, Leiden University, Postbus 9504, 2300 RA Leiden, The Netherlands
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30
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Schmid S, Stömmer P, Dietz H, Dekker C. Nanopore electro-osmotic trap for the label-free study of single proteins and their conformations. NATURE NANOTECHNOLOGY 2021; 16:1244-1250. [PMID: 34462599 DOI: 10.1038/s41565-021-00958-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Many strategies have been pursued to trap and monitor single proteins over time to detect the molecular mechanisms of these essential nanomachines. Single-protein sensing with nanopores is particularly attractive because it allows label-free high-bandwidth detection on the basis of ion currents. Here we present the nanopore electro-osmotic trap (NEOtrap) that allows trapping and observing single proteins for hours with submillisecond time resolution. The NEOtrap is formed by docking a DNA-origami sphere onto a passivated solid-state nanopore, which seals off a nanocavity of a user-defined size and creates an electro-osmotic flow that traps nearby particles irrespective of their charge. We demonstrate the NEOtrap's ability to sensitively distinguish proteins on the basis of size and shape, and discriminate between nucleotide-dependent protein conformations, as exemplified by the chaperone protein Hsp90. Given the experimental simplicity and capacity for label-free single-protein detection over the broad bio-relevant time range, the NEOtrap opens new avenues to study the molecular kinetics underlying protein function.
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Affiliation(s)
- Sonja Schmid
- Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands
- NanoDynamicsLab, Laboratory of Biophysics, Wageningen University, Wageningen, The Netherlands
| | - Pierre Stömmer
- Physik Department, Technische Universität München, Garching near Munich, Germany
| | - Hendrik Dietz
- Physik Department, Technische Universität München, Garching near Munich, Germany
| | - Cees Dekker
- Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands.
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31
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Fried JP, Swett JL, Nadappuram BP, Fedosyuk A, Sousa PM, Briggs DP, Ivanov AP, Edel JB, Mol JA, Yates JR. Understanding Electrical Conduction and Nanopore Formation During Controlled Breakdown. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102543. [PMID: 34337856 DOI: 10.1002/smll.202102543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Controlled breakdown has recently emerged as a highly appealing technique to fabricate solid-state nanopores for a wide range of biosensing applications. This technique relies on applying an electric field of approximately 0.4-1 V nm-1 across the membrane to induce a current, and eventually, breakdown of the dielectric. Although previous studies have performed controlled breakdown under a range of different conditions, the mechanism of conduction and breakdown has not been fully explored. Here, electrical conduction and nanopore formation in SiNx membranes during controlled breakdown is studied. It is demonstrated that for Si-rich SiNx , oxidation reactions that occur at the membrane-electrolyte interface limit conduction across the dielectric. However, for stoichiometric Si3 N4 the effect of oxidation reactions becomes relatively small and conduction is predominately limited by charge transport across the dielectric. Several important implications resulting from understanding this process are provided which will aid in further developing controlled breakdown in the coming years, particularly for extending this technique to integrate nanopores with on-chip nanostructures.
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Affiliation(s)
- Jasper P Fried
- Department of Materials, University of Oxford, Oxford, OX1 3PH, UK
| | - Jacob L Swett
- Department of Materials, University of Oxford, Oxford, OX1 3PH, UK
| | | | | | - Pedro Miguel Sousa
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, 2780-157, Portugal
| | - Dayrl P Briggs
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | | | - Joshua B Edel
- Department of Chemistry, Imperial College London, London, W12 0BZ, UK
| | - Jan A Mol
- School of Physics and Astronomy, Queen Mary University London, London, E1 4NS, UK
| | - James R Yates
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, 2780-157, Portugal
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Chen X, Zhang Y, Guan X. Simultaneous detection of multiple proteases using a non-array nanopore platform. NANOSCALE 2021; 13:13658-13664. [PMID: 34477641 PMCID: PMC8485758 DOI: 10.1039/d1nr04085e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Multiplexing methods which are capable of measurement of multiple analytes in a single assay are of great importance in many fields. The conventional strategy for simultaneous detection of multiple species is to construct a sensor array. Herein, we report an innovative multiplex multi-analyte detection platform in a non-array format for protease measurement. By monitoring protease degradation of a single peptide substrate containing two cleavage sites for a disintegrin and metalloproteinase 10 (ADAM10) and a disintegrin and metalloproteinase 10 (ADAM17) in a single nanopore, simultaneous detection and quantification of these two model proteases in mixture samples could satisfactorily be accomplished. Our developed multiplexing sensing platform has the potential to be coupled with the traditional sensor array to further improve the multiplexing capability of the sensor, which may find useful applications in clinical diagnosis and prognosis.
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Affiliation(s)
- Xiaohan Chen
- Department of Chemistry, Illinois Institute of Technology, 3101 S Dearborn St, Chicago, IL 60616, USA.
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Rahman M, Sampad MJN, Hawkins A, Schmidt H. Recent advances in integrated solid-state nanopore sensors. LAB ON A CHIP 2021; 21:3030-3052. [PMID: 34137407 PMCID: PMC8372664 DOI: 10.1039/d1lc00294e] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The advent of single-molecule probing techniques has revolutionized the biomedical and life science fields and has spurred the development of a new class of labs-on-chip based on powerful biosensors. Nanopores represent one of the most recent and most promising single molecule sensing paradigms that is seeing increased chip-scale integration for improved convenience and performance. Due to their physical structure, nanopores are highly sensitive, require low sample volume, and offer label-free, amplification-free, high-throughput real-time detection and identification of biomolecules. Over the last 25 years, nanopores have been extensively employed to detect a variety of biomolecules with a growing range of applicatons ranging from nucleic acid sequencing to ultrasensitive diagnostics to single-molecule biophysics. Nanopores, in particular those in solid-state membranes, also have the potential for integration with other technologies such as optics, plasmonics, microfluidics, and optofluidics to perform more complex tasks for an ever-expanding demand. A number of breakthrough results using integrated nanopore platforms have already been reported, and more can be expected as nanopores remain the focus of innovative research and are finding their way into commercial instruments. This review provides an overview of different aspects and challenges of nanopore technology with a focus on chip-scale integration of solid-state nanopores for biosensing and bioanalytical applications.
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Affiliation(s)
- Mahmudur Rahman
- School of Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA, 95064 USA. and Dhaka University of Engineering & Technology, Gazipur, Bangladesh
| | | | - Aaron Hawkins
- ECEn Department, Brigham Young University, 459 Clyde Building, Provo, UT, 84602 USA
| | - Holger Schmidt
- School of Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA, 95064 USA.
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Detection of single peptide with only one amino acid modification via electronic fingerprinting using reengineered durable channel of Phi29 DNA packaging motor. Biomaterials 2021; 276:121022. [PMID: 34298441 DOI: 10.1016/j.biomaterials.2021.121022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/21/2021] [Accepted: 07/08/2021] [Indexed: 12/22/2022]
Abstract
Protein post-translational modification (PTM) is crucial to modulate protein interactions and activity in various biological processes. Emerging evidence has revealed PTM patterns participate in the pathology onset and progression of various diseases. Current PTM identification relies mainly on mass spectrometry-based approaches that limit the assessment to the entire protein population in question. Here we report a label-free method for the detection of the single peptide with only one amino acid modification via electronic fingerprinting using reengineered durable channel of phi29 DNA packaging motor, which bears the deletion of 25-amino acids (AA) at the C-terminus or 17-AA at the internal loop of the channel. The mutant channels were used to detect propionylation modification via single-molecule fingerprinting in either the traditional patch-clamp or the portable MinION™ platform of Oxford Nanopore Technologies. Up to 2000 channels are available in the MinION™ Flow Cells. The current signatures and dwell time of individual channels were identified. Peptides with only one propionylation were differentiated. Excitingly, identification of single or multiple modifications on the MinION™ system was achieved. The successful application of PTM differentiation on the MinION™ system represents a significant advance towards developing a label-free and high-throughput detection platform utilizing nanopores for clinical diagnosis based on PTM.
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35
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Peng X, Kotnala A, Rajeeva BB, Wang M, Yao K, Bhatt N, Penley D, Zheng Y. Plasmonic Nanotweezers and Nanosensors for Point-of-Care Applications. ADVANCED OPTICAL MATERIALS 2021; 9:2100050. [PMID: 34434691 PMCID: PMC8382230 DOI: 10.1002/adom.202100050] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Indexed: 05/12/2023]
Abstract
The capabilities of manipulating and analyzing biological cells, bacteria, viruses, DNAs, and proteins at high resolution are significant in understanding biology and enabling early disease diagnosis. We discuss progress in developments and applications of plasmonic nanotweezers and nanosensors where the plasmon-enhanced light-matter interactions at the nanoscale improve the optical manipulation and analysis of biological objects. Selected examples are presented to illustrate their design and working principles. In the context of plasmofluidics, which merges plasmonics and fluidics, the integration of plasmonic nanotweezers and nanosensors with microfluidic systems for point-of-care (POC) applications is envisioned. We provide our perspectives on the challenges and opportunities in further developing and applying the plasmofluidic POC devices.
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Affiliation(s)
- Xiaolei Peng
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Abhay Kotnala
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Bharath Bangalore Rajeeva
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Mingsong Wang
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Kan Yao
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Neel Bhatt
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Daniel Penley
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Yuebing Zheng
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
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36
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Cai J, Ma W, Hao C, Sun M, Guo J, Xu L, Xu C, Kuang H. Artificial light-triggered smart nanochannels relying on optoionic effects. Chem 2021. [DOI: 10.1016/j.chempr.2021.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Lin ZH, Zhang J, Huang JS. Plasmonic elliptical nanoholes for chiroptical analysis and enantioselective optical trapping. NANOSCALE 2021; 13:9185-9192. [PMID: 33960333 DOI: 10.1039/d0nr09080h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A simple yet effective achiral platform using elliptical nanoholes for chiroptical analysis is demonstrated. Under linearly polarized excitation, an elliptical nanohole in a thin gold film can generate a localized chiral optical field for chiroptical analysis and simultaneously serve as a near-field optical trap to capture dielectric and plasmonic nanospheres. In particular, the trapping potential is enantioselective for dielectric nanospheres, i.e., the hole traps or repels the dielectric nanoparticles depending on the sample chirality. For plasmonic nanospheres, the trapping potential well is much deeper than that for dielectric particles, rendering the enantioselectivity less pronounced. This platform is suitable for chiral analysis with nanoparticle-based solid-state extraction and pre-concentration. Compared to plasmonic chiroptical sensing using chiral structures or circularly polarized light, elliptical nanoholes are a simple and effective platform, which is expected to have a relatively low background because chiroptical noise from the structure or chiral species outside the nanohole is minimized. The use of linearly polarized excitation also makes the platform easily compatible with a commercial optical microscope.
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Affiliation(s)
- Zhan-Hong Lin
- Leibniz Institute of Photonic Technology, Albert-Einstein Straße 9, 07745 Jena, Germany.
| | - Jiwei Zhang
- Leibniz Institute of Photonic Technology, Albert-Einstein Straße 9, 07745 Jena, Germany. and MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, China
| | - Jer-Shing Huang
- Leibniz Institute of Photonic Technology, Albert-Einstein Straße 9, 07745 Jena, Germany. and Abbe Center of Photonics, Friedrich-Schiller University Jena, Jena, Germany and Research Center for Applied Sciences, Academia Sinica, 128 Sec. 2, Academia Road, 11529 Taipei, Nankang District, Taiwan and Department of Electrophysics, National Chiao Tung University, 1001 University Road, 30010 Hsinchu, Taiwan
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38
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Klughammer N, Dekker C. Palladium zero-mode waveguides for optical single-molecule detection with nanopores. NANOTECHNOLOGY 2021; 32:18LT01. [PMID: 33412532 DOI: 10.1088/1361-6528/abd976] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Holes in metal films do not allow the propagation of light if the wavelength is much larger than the hole diameter, establishing such nanopores as so-called zero-mode waveguides (ZMWs). Molecules, on the other hand, can still pass through these holes. We use this to detect individual fluorophore-labelled molecules as they travel through a ZMW and thereby traverse from the dark region to the illuminated side, upon which they emit fluorescent light. This is beneficial both for background suppression and to prevent premature bleaching. We use palladium as a novel metal-film material for ZMWs, which is advantageous compared to conventionally used metals. We demonstrate that it is possible to simultaneously detect translocations of individual free fluorophores of different colours. Labelled DNA and protein biomolecules can also be detected at the single-molecule level with a high signal-to-noise ratio and at high bandwidth, which opens the door to a variety of single-molecule biophysics studies.
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Affiliation(s)
- Nils Klughammer
- Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, Netherlands
| | - Cees Dekker
- Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, Netherlands
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Fried JP, Swett JL, Nadappuram BP, Mol JA, Edel JB, Ivanov AP, Yates JR. In situ solid-state nanopore fabrication. Chem Soc Rev 2021; 50:4974-4992. [PMID: 33623941 DOI: 10.1039/d0cs00924e] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanopores in solid-state membranes are promising for a wide range of applications including DNA sequencing, ultra-dilute analyte detection, protein analysis, and polymer data storage. Techniques to fabricate solid-state nanopores have typically been time consuming or lacked the resolution to create pores with diameters down to a few nanometres, as required for the above applications. In recent years, several methods to fabricate nanopores in electrolyte environments have been demonstrated. These in situ methods include controlled breakdown (CBD), electrochemical reactions (ECR), laser etching and laser-assisted controlled breakdown (la-CBD). These techniques are democratising solid-state nanopores by providing the ability to fabricate pores with diameters down to a few nanometres (i.e. comparable to the size of many analytes) in a matter of minutes using relatively simple equipment. Here we review these in situ solid-state nanopore fabrication techniques and highlight the challenges and advantages of each method. Furthermore we compare these techniques by their desired application and provide insights into future research directions for in situ nanopore fabrication methods.
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Affiliation(s)
- Jasper P Fried
- Department of Materials, University of Oxford, Oxford, OX1 3PH, UK
| | - Jacob L Swett
- Department of Materials, University of Oxford, Oxford, OX1 3PH, UK
| | - Binoy Paulose Nadappuram
- Department of Chemistry, Imperial College London, Molecular Science Research Hub, White City Campus, 82 Wood Lane, W12 0BZ, UK
| | - Jan A Mol
- School of Physics and Astronomy, Queen Mary University of London, Mile End Road, E1 4NS, UK
| | - Joshua B Edel
- Department of Chemistry, Imperial College London, Molecular Science Research Hub, White City Campus, 82 Wood Lane, W12 0BZ, UK
| | - Aleksandar P Ivanov
- Department of Chemistry, Imperial College London, Molecular Science Research Hub, White City Campus, 82 Wood Lane, W12 0BZ, UK
| | - James R Yates
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.
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40
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Nanopores: a versatile tool to study protein dynamics. Essays Biochem 2021; 65:93-107. [PMID: 33296461 DOI: 10.1042/ebc20200020] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022]
Abstract
Proteins are the active workhorses in our body. These biomolecules perform all vital cellular functions from DNA replication and general biosynthesis to metabolic signaling and environmental sensing. While static 3D structures are now readily available, observing the functional cycle of proteins - involving conformational changes and interactions - remains very challenging, e.g., due to ensemble averaging. However, time-resolved information is crucial to gain a mechanistic understanding of protein function. Single-molecule techniques such as FRET and force spectroscopies provide answers but can be limited by the required labelling, a narrow time bandwidth, and more. Here, we describe electrical nanopore detection as a tool for probing protein dynamics. With a time bandwidth ranging from microseconds to hours, nanopore experiments cover an exceptionally wide range of timescales that is very relevant for protein function. First, we discuss the working principle of label-free nanopore experiments, various pore designs, instrumentation, and the characteristics of nanopore signals. In the second part, we review a few nanopore experiments that solved research questions in protein science, and we compare nanopores to other single-molecule techniques. We hope to make electrical nanopore sensing more accessible to the biochemical community, and to inspire new creative solutions to resolve a variety of protein dynamics - one molecule at a time.
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41
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Plasmonic Biosensors for Single-Molecule Biomedical Analysis. BIOSENSORS-BASEL 2021; 11:bios11040123. [PMID: 33921010 PMCID: PMC8071374 DOI: 10.3390/bios11040123] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/18/2021] [Accepted: 04/13/2021] [Indexed: 11/16/2022]
Abstract
The rapid spread of epidemic diseases (i.e., coronavirus disease 2019 (COVID-19)) has contributed to focus global attention on the diagnosis of medical conditions by ultrasensitive detection methods. To overcome this challenge, increasing efforts have been driven towards the development of single-molecule analytical platforms. In this context, recent progress in plasmonic biosensing has enabled the design of novel detection strategies capable of targeting individual molecules while evaluating their binding affinity and biological interactions. This review compiles the latest advances in plasmonic technologies for monitoring clinically relevant biomarkers at the single-molecule level. Functional applications are discussed according to plasmonic sensing modes based on either nanoapertures or nanoparticle approaches. A special focus was devoted to new analytical developments involving a wide variety of analytes (e.g., proteins, living cells, nucleic acids and viruses). The utility of plasmonic-based single-molecule analysis for personalized medicine, considering technological limitations and future prospects, is also overviewed.
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42
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Sato K, Sato F, Kumano M, Kamijo T, Sato T, Zhou Y, Korchev Y, Fukuma T, Fujimura T, Takahashi Y. Electrochemical Quantitative Evaluation of the Surface Charge of a Poly(1‐Vinylimidazole) Multilayer Film and Application to Nanopore pH Sensor. ELECTROANAL 2021. [DOI: 10.1002/elan.202100041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Katsuhiko Sato
- Faculty of Pharmaceutical Science Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
- Department of Creative Engineering National Institute of Technology Tsuruoka College 104 Sawada, Inooka Tsuruoka Yamagata 997-8511 Japan
| | - Fumiya Sato
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Masayuki Kumano
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Toshio Kamijo
- Department of Creative Engineering National Institute of Technology Tsuruoka College 104 Sawada, Inooka Tsuruoka Yamagata 997-8511 Japan
| | - Takaya Sato
- Department of Creative Engineering National Institute of Technology Tsuruoka College 104 Sawada, Inooka Tsuruoka Yamagata 997-8511 Japan
| | - Yuanshu Zhou
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University, Kakuma-machi Kanazawa 920-1192 Japan
| | - Yuri Korchev
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University, Kakuma-machi Kanazawa 920-1192 Japan
- Imperial College London Department of Medicine W12 0NN London United Kingdom
| | - Takeshi Fukuma
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University, Kakuma-machi Kanazawa 920-1192 Japan
| | - Tsutomu Fujimura
- Faculty of Pharmaceutical Science Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba Sendai Miyagi 981-8558 Japan
| | - Yasufumi Takahashi
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University, Kakuma-machi Kanazawa 920-1192 Japan
- Precursory Research for Embryonic Science and Technology (PRESTO) Japan Science and Technology Agency (JST) Saitama 332-0012 Japan
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43
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Abstract
The field of single nanoparticle plasmonics has grown enormously. There is no doubt that a wide diversity of the nanoplasmonic techniques and nanostructures represents a tremendous opportunity for fundamental biomedical studies as well as sensing and imaging applications. Single nanoparticle plasmonic biosensors are efficient in label-free single-molecule detection, as well as in monitoring real-time binding events of even several biomolecules. In the present review, we have discussed the prominent advantages and advances in single particle characterization and synthesis as well as new insight into and information on biomedical diagnosis uniquely obtained using single particle approaches. The approaches include the fundamental studies of nanoplasmonic behavior, two typical methods based on refractive index change and characteristic light intensity change, exciting innovations of synthetic strategies for new plasmonic nanostructures, and practical applications using single particle sensing, imaging, and tracking. The basic sphere and rod nanostructures are the focus of extensive investigations in biomedicine, while they can be programmed into algorithmic assemblies for novel plasmonic diagnosis. Design of single nanoparticles for the detection of single biomolecules will have far-reaching consequences in biomedical diagnosis.
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Affiliation(s)
- Xingyi Ma
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea.
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea.
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Zhang Y, Min C, Dou X, Wang X, Urbach HP, Somekh MG, Yuan X. Plasmonic tweezers: for nanoscale optical trapping and beyond. LIGHT, SCIENCE & APPLICATIONS 2021; 10:59. [PMID: 33731693 PMCID: PMC7969631 DOI: 10.1038/s41377-021-00474-0] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 12/24/2020] [Accepted: 01/14/2021] [Indexed: 05/06/2023]
Abstract
Optical tweezers and associated manipulation tools in the far field have had a major impact on scientific and engineering research by offering precise manipulation of small objects. More recently, the possibility of performing manipulation with surface plasmons has opened opportunities not feasible with conventional far-field optical methods. The use of surface plasmon techniques enables excitation of hotspots much smaller than the free-space wavelength; with this confinement, the plasmonic field facilitates trapping of various nanostructures and materials with higher precision. The successful manipulation of small particles has fostered numerous and expanding applications. In this paper, we review the principles of and developments in plasmonic tweezers techniques, including both nanostructure-assisted platforms and structureless systems. Construction methods and evaluation criteria of the techniques are presented, aiming to provide a guide for the design and optimization of the systems. The most common novel applications of plasmonic tweezers, namely, sorting and transport, sensing and imaging, and especially those in a biological context, are critically discussed. Finally, we consider the future of the development and new potential applications of this technique and discuss prospects for its impact on science.
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Affiliation(s)
- Yuquan Zhang
- Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology & Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China
| | - Changjun Min
- Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology & Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China.
| | - Xiujie Dou
- Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology & Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China
- Optics Research Group, Delft University of Technology, Lorentzweg 1, 2628CJ, Delft, The Netherlands
| | - Xianyou Wang
- Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology & Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China
| | - Hendrik Paul Urbach
- Optics Research Group, Delft University of Technology, Lorentzweg 1, 2628CJ, Delft, The Netherlands
| | - Michael G Somekh
- Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology & Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China
| | - Xiaocong Yuan
- Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology & Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China.
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45
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Farshad M, Rasaiah JC. Light-Nucleotide versus Ion-Nucleotide Interactions for Single-Nucleotide Resolution. J Phys Chem B 2021; 125:2863-2870. [PMID: 33688740 DOI: 10.1021/acs.jpcb.0c10759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Several parallel reads of ionic currents through multiple CsgG nanopores provide information about ion-nucleotide interactions for sequencing single-stranded DNA (ss-DNA) using base-calling algorithms. However, the information in ion-nucleotide interactions seems insufficient for single-read nanopore DNA sequencing. Here we report discriminative light-nucleotide interactions calculated from density functional theory (DFT), which are compared with ionic currents obtained from molecular dynamics (MD) simulations. The MD simulations were performed on a system containing a transverse nanochannel and a longitudinal solid state nanopore. We show that both of the transverse and longitudinal ionic currents during the translocation of A16, G16, T16, and C16 through the nanopore, overlapped widely. On the other hand, the UV-vis and Raman spectra of different types of single nucleotides, nucleosides, and nucleobases show relatively higher resolution than the ionic currents. Light-nucleotide interactions provide better information for characterizing the nucleotides in comparison to ion-nucleotide interactions for nanopore DNA sequencing. This can be realized by using optical techniques including surface-enhanced Raman spectroscopy (SERS) or tip-enhanced Raman spectroscopy (TERS), while plasmon excitation can be used to localize light and control the rate of nucleotide flow.
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Affiliation(s)
- Mohsen Farshad
- Department of Chemistry, University of Maine, Orono, Maine 04469, United States
| | - Jayendran C Rasaiah
- Department of Chemistry, University of Maine, Orono, Maine 04469, United States
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46
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Takahashi S, Oshige M, Katsura S. DNA Manipulation and Single-Molecule Imaging. Molecules 2021; 26:1050. [PMID: 33671359 PMCID: PMC7922115 DOI: 10.3390/molecules26041050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 11/22/2022] Open
Abstract
DNA replication, repair, and recombination in the cell play a significant role in the regulation of the inheritance, maintenance, and transfer of genetic information. To elucidate the biomolecular mechanism in the cell, some molecular models of DNA replication, repair, and recombination have been proposed. These biological studies have been conducted using bulk assays, such as gel electrophoresis. Because in bulk assays, several millions of biomolecules are subjected to analysis, the results of the biological analysis only reveal the average behavior of a large number of biomolecules. Therefore, revealing the elementary biological processes of a protein acting on DNA (e.g., the binding of protein to DNA, DNA synthesis, the pause of DNA synthesis, and the release of protein from DNA) is difficult. Single-molecule imaging allows the analysis of the dynamic behaviors of individual biomolecules that are hidden during bulk experiments. Thus, the methods for single-molecule imaging have provided new insights into almost all of the aspects of the elementary processes of DNA replication, repair, and recombination. However, in an aqueous solution, DNA molecules are in a randomly coiled state. Thus, the manipulation of the physical form of the single DNA molecules is important. In this review, we provide an overview of the unique studies on DNA manipulation and single-molecule imaging to analyze the dynamic interaction between DNA and protein.
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Affiliation(s)
- Shunsuke Takahashi
- Division of Life Science and Engineering, School of Science and Engineering, Tokyo Denki University, Hatoyama-cho, Hiki-gun, Saitama 350-0394, Japan;
| | - Masahiko Oshige
- Department of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan;
- Gunma University Center for Food Science and Wellness (GUCFW), Maebashi, Gunma 371-8510, Japan
| | - Shinji Katsura
- Department of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan;
- Gunma University Center for Food Science and Wellness (GUCFW), Maebashi, Gunma 371-8510, Japan
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47
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Maccaferri N, Barbillon G, Koya AN, Lu G, Acuna GP, Garoli D. Recent advances in plasmonic nanocavities for single-molecule spectroscopy. NANOSCALE ADVANCES 2021; 3:633-642. [PMID: 36133836 PMCID: PMC9418431 DOI: 10.1039/d0na00715c] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 11/04/2020] [Indexed: 05/12/2023]
Abstract
Plasmonic nanocavities are able to engineer and confine electromagnetic fields to subwavelength volumes. In the past decade, they have enabled a large set of applications, in particular for sensing, optical trapping, and the investigation of physical and chemical phenomena at a few or single-molecule levels. This extreme sensitivity is possible thanks to the highly confined local field intensity enhancement, which depends on the geometry of plasmonic nanocavities. Indeed, suitably designed structures providing engineered local optical fields lead to enhanced optical sensing based on different phenomena such as surface enhanced Raman scattering, fluorescence, and Förster resonance energy transfer. In this mini-review, we illustrate the most recent results on plasmonic nanocavities, with specific emphasis on the detection of single molecules.
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Affiliation(s)
- Nicolò Maccaferri
- Department of Physics and Materials Science, University of Luxembourg 162a avenue de la Faïencerie L-1511 Luxembourg Luxembourg
| | | | | | - Guowei Lu
- State Key Laboratory for Mesoscopic Physics, Collaborative Innovation Center of Quantum Matter, Peking University Beijing 100871 China
| | - Guillermo P Acuna
- Département de Physique - Photonic Nanosystems, Université de Fribourg CH-1700 Fribourg Switzerland
| | - Denis Garoli
- Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy
- Faculty of Science and Technology, Free University of Bozen-Bolzano Piazza università 1 39100 Bolzano Italy
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Xia Y, Sun Y, Li H, Chen S, Zhu T, Wang G, Man B, Pan J, Yang C. Plasma treated graphene FET sensor for the DNA hybridization detection. Talanta 2021; 223:121766. [DOI: 10.1016/j.talanta.2020.121766] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/06/2020] [Accepted: 10/08/2020] [Indexed: 12/17/2022]
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49
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Darvill D, Iarossi M, Abraham Ekeroth RM, Hubarevich A, Huang JA, De Angelis F. Breaking the symmetry of nanosphere lithography with anisotropic plasma etching induced by temperature gradients. NANOSCALE ADVANCES 2021; 3:359-369. [PMID: 36131733 PMCID: PMC9419189 DOI: 10.1039/d0na00718h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/10/2020] [Indexed: 06/01/2023]
Abstract
We report a novel anisotropic process, termed plasma etching induced by temperature gradients (PE-TG), which we use to modify the 3D morphology of a hexagonally close-packed polystyrene sphere array. Specifically, we combined an isotropic oxygen plasma (generated by a plasma cleaner) and a vertical temperature gradient applied from the bottom to the top of a colloidal mask to create an anisotropic etching process. As a result, an ordered array of well-defined and separated nano mushrooms is obtained. We demonstrate that the features of the mushrooms, namely the hat size and their intrinsic undercut, as well as the pillar diameter and height, can be easily tuned by adjusting the main parameters of the process i.e. the temperature gradient and etching time, or the spheres' size. We show that PS mushroom arrays can be used as nanostructured templates to fabricate plasmonic arrays, such as gold-capped nano mushrooms and ultra-small nanoapertures, by using vertical and oblique gold sputtering deposition respectively. PE-TG reveals a new, cheap and facile approach to produce plasmonic nanostructures of great interest in the fields of molecular sensing, surface-enhanced Raman scattering (SERS), energy harvesting and optoelectronics. We study the optical properties of the Au-capped nano mushroom arrays and their performance as biosensing platforms by performing SERS measurements.
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Affiliation(s)
- Daniel Darvill
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
| | - Marzia Iarossi
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), Università; degli Studi di Genova Via Balbi 5 16126 Genova Italy
| | - Ricardo M Abraham Ekeroth
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
- Instituto de Física Arroyo Seco (CIFICEN-CICPBA-CONICET), Universidad Nacional del Centro de la Provincia de Buenos Aires Pinto 399 7000 Tandil Argentina
| | | | - Jian-An Huang
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
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50
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Peri SSS, Sabnani MK, Raza MU, Urquhart EL, Ghaffari S, Lee JS, Kim MJ, Weidanz J, Alexandrakis G. Quantification of low affinity binding interactions between natural killer cell inhibitory receptors and targeting ligands with a self-induced back-action actuated nanopore electrophoresis (SANE) sensor. NANOTECHNOLOGY 2021; 32:045501. [PMID: 33027774 PMCID: PMC8346883 DOI: 10.1088/1361-6528/abbf26] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A plasmonic nanopore sensor enabling detection of bimodal optical and electrical molecular signatures was fabricated and tested for its ability to characterize low affinity ligand-receptor interactions. This plasmonic nanosensor uses self-induced back-action (SIBA) for optical trapping to enable SIBA-actuated nanopore electrophoresis (SANE) through a nanopore located immediately below the optical trap volume. A natural killer (NK) cell inhibitory receptor heterodimer molecule CD94/NKG2A was synthesized to target a specific peptide-presenting Qa-1b Qdm ligand as a simplified model of low-affinity interactions between immune cells and peptide-presenting cancer cells that occurs during cancer immunotherapy. A cancer-irrelevant Qa-1b GroEL ligand was also targeted by the same receptor as a control experiment to test for non-specific binding. The analysis of different pairs of bimodal SANE sensor signatures enabled discrimination of ligand, receptor and their complexes and enabled differentiating between specific and non-specific ligand interactions. We were able to detect ligand-receptor complex binding at concentrations over 500 times lower than the free solution equilibrium binding constant (K D ). Additionally, SANE sensor measurements enabled estimation of the fast dissociation rate (k off) for this low-affinity specific ligand-receptor system, previously shown to be challenging to quantify with commercial technologies. The k off value of targeted peptide-presenting ligands is known to correlate with the subsequent activation of immune cells in vivo, suggesting the potential utility of the SANE senor as a screening tool in cancer immunotherapy.
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Affiliation(s)
- Sai Santosh Sasank Peri
- Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX, United States of America
| | - Manoj Kumar Sabnani
- Department of Biology, University of Texas at Arlington, Arlington, TX, United States of America
| | - Muhammad Usman Raza
- Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX, United States of America
| | - Elizabeth L Urquhart
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, United States of America
| | - Soroush Ghaffari
- Department of Biology, University of Texas at Arlington, Arlington, TX, United States of America
| | - Jung Soo Lee
- Department of Mechanical Engineering, Southern Methodist University, Dallas, TX, United States of America
| | - Min Jun Kim
- Department of Mechanical Engineering, Southern Methodist University, Dallas, TX, United States of America
| | - Jon Weidanz
- Department of Biology, University of Texas at Arlington, Arlington, TX, United States of America
| | - George Alexandrakis
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, United States of America
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