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Li Z, Cheng Y, Liu J, Peng G. Optical trapping based on microring resonators with a transverse slot structure. APPLIED OPTICS 2023; 62:7119-7126. [PMID: 37707054 DOI: 10.1364/ao.500846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/28/2023] [Indexed: 09/15/2023]
Abstract
Over the past few decades, optical manipulation has emerged as a highly successful tool in various fields such as biology, micro/nanorobotics, and physics. Among the different techniques, the transverse slot optical waveguide has shown remarkable potential in enhancing the field and significantly improving optical trapping capabilities. Additionally, microring resonators have demonstrated the ability to enhance the field at specific resonance wavelengths, enabling the manipulation and capture of particles. In this study, we investigated the impact of the structure on nanoparticle capture by introducing a 50 nm transverse slot in a 5 µm microring resonator. Through the integration of a transverse slot in the microring resonator, we observed a substantial increase in the maximum bound optical power for a nanosphere with a refractive index of 1.6 and a diameter of 50 nm, reaching 3988.8 pN/W. This value is 2292 times higher than the maximum optical force in a straight waveguide and 2.266 times higher than the maximum optical force in a microring resonator. The proposed structure significantly enhances the optical trapping capabilities for nanoscale particles, thus paving the way for the development of advanced micro/nanomanipulation techniques.
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2
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Khorami AA, Barahimi B, Vatani S, Javanmard AS. Tunable plasmonic tweezers based on graphene nano-taper for nano-bio-particles manipulation: numerical study. OPTICS EXPRESS 2023; 31:21063-21077. [PMID: 37381215 DOI: 10.1364/oe.485994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/16/2023] [Indexed: 06/30/2023]
Abstract
We take advantage of graphene nano-taper plasmons to design tunable plasmonic tweezers for neuroblastoma extracellular vesicles manipulation. It consists of Si/SiO2/Graphene stack topped by a microfluidic chamber. Using plasmons of isosceles-triangle-shaped graphene nano-taper with a resonance frequency of 6.25 THz, the proposed device can efficiently trap the nanoparticles. The plasmons of graphene nano-taper generate a large field intensity in the deep sub-wavelength area around the vertices of the triangle. We show that by engineering the dimensions of the graphene nano-taper and an appropriate choice of its Fermi energy, the desired near-field gradient force for trapping can be generated under relatively low-intensity illumination of the THz source when the nanoparticles are placed near the front vertex of the nano-taper. Our results show that the designed system with graphene nano-taper of L = 1200 nm length and W = 600 nm base size and THz source intensity of I = 2 mW/µm2, can trap polystyrene nanoparticles with diameters of D = 140, 73, and 54 nm, and with trap stiffnesses of ky = 9.9 fN/nm, ky = 23.77 fN/nm, and ky = 35.51 fN/nm at Fermi energies of Ef = 0.4, 0.5, and 0.6 eV, respectively. It is well known that the plasmonic tweezer as a high-precision and non-contact means of control has potential applications in biology. Our investigations demonstrate that the proposed tweezing device with L = 1200 nm, W = 600 nm, and Ef = 0.6 eV can be utilized to manipulate the nano-bio-specimens. So that, at the given source intensity, it can trap the neuroblastoma extracellular vesicles, which are released by neuroblastoma cells and play an important role in modulating the function of neuroblastoma cells and other cell populations, as small as 88 nm at the front tip of isosceles-triangle-shaped graphene nano-taper. The trap stiffness for the given neuroblastoma extracellular vesicle is obtained as ky = 17.92 fN/nm.
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3
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La TL, Bui BN, Nguyen TTN, Pham TL, Tran QT, Tong QC, Mikulich A, Nguyen TP, Nguyen TTT, Lai ND. Design and Realization of Polymeric Waveguide/Microring Structures for Telecommunication Domain. MICROMACHINES 2023; 14:mi14051068. [PMID: 37241692 DOI: 10.3390/mi14051068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023]
Abstract
Polymer-based micro-optical components are very important for applications in optical communication. In this study, we theoretically investigated the coupling of polymeric waveguide and microring structures and experimentally demonstrated an efficient fabrication method to realize these structures on demand. First, the structures were designed and simulated using the FDTD method. The optical mode and loss in the coupling structures were calculated, thereby giving the optimal distance for optical mode coupling between two rib waveguide structures or for optical mode coupling in a microring resonance structure. Simulations results then guided us in the fabrication of the desired ring resonance microstructures using a robust and flexible direct laser writing technique. The entire optical system was thus designed and manufactured on a flat base plate so that it could be easily integrated in optical circuits.
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Affiliation(s)
- Thuy Linh La
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Binh Nguyen Bui
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Thi Thanh Ngan Nguyen
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Thi Lien Pham
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Quoc Tien Tran
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Quang Cong Tong
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Aliaksandr Mikulich
- B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus, 68 Nezavisimosty Av., 220072 Minsk, Belarus
| | - Thanh Phuong Nguyen
- School of Engineering Physics, Hanoi University of Science and Technology, No. 1 Dai Co Viet, Hai Ba Trung, Hanoi 100000, Vietnam
| | - Thi Thu Thuy Nguyen
- Institue of Tropical Medicine, Viet Nam-Russia Tropical Center, Nguyen Van Huyen Street, Nghia Do, Cau Giay, Hanoi 100000, Vietnam
| | - Ngoc Diep Lai
- LuMIn, ENS Paris-Saclay, CentraleSupélec, CNRS, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
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4
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Feng W, Wang Z, Tsubokawa M. Evaluations of nanoparticle capture and transport methods in dielectric bowtie core capillaries. OPTICS EXPRESS 2023; 31:16676-16689. [PMID: 37157742 DOI: 10.1364/oe.489355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We propose a flexibly tunable and low-loss optical burette with an all-dielectric bowtie core capillary structure, where nanoparticle arrays can be transported bidirectionally with incident light from one end. Multiple hot spots, acting as optical traps, are periodically distributed at the center of the bowtie cores along the propagation direction because of the mode interference effect of guided lights. By adjusting the beam waist position, the hot spots continuously move across the entire capillary length; thus, trapped nanoparticles also transfer with the hot spots. The bidirectional transfer can be realized simply by changing the beam waist in the forward or backward direction. We confirmed that nanosized polystyrene spheres can be bidirectionally moved along a capillary length of ≈ 20 µm. Furthermore, the magnitude of the optical force can be adjusted using the incident angle and beam waist width, whereas the trapping period can be adjusted using the incident wavelength. These results were evaluated using the finite-difference time-domain method. We believe that this new approach can be extensively used in the field of biochemical and life sciences because of the properties of an all-dielectric structure, bidirectional transportation, and single incident light.
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5
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Zhou LM, Shi Y, Zhu X, Hu G, Cao G, Hu J, Qiu CW. Recent Progress on Optical Micro/Nanomanipulations: Structured Forces, Structured Particles, and Synergetic Applications. ACS NANO 2022; 16:13264-13278. [PMID: 36053722 DOI: 10.1021/acsnano.2c05634] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Optical manipulation has achieved great success in the fields of biology, micro/nano robotics and physical sciences in the past few decades. To date, the optical manipulation is still witnessing substantial progress powered by the growing accessibility of the complex light field, advanced nanofabrication and developed understandings of light-matter interactions. In this perspective, we highlight recent advancements of optical micro/nanomanipulations in cutting-edge applications, which can be fostered by structured optical forces enabled with diverse auxiliary multiphysical field/forces and structured particles. We conclude with our vision of ongoing and futuristic directions, including heat-avoided and heat-utilized manipulation, nonlinearity-mediated trapping and manipulation, metasurface/two-dimensional material based optical manipulation, as well as interface-based optical manipulation.
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Affiliation(s)
- Lei-Ming Zhou
- Department of Optical Engineering, School of Physics, Hefei University of Technology, Hefei 230601, China
| | - Yuzhi Shi
- Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
- MOE Key Laboratory of Advanced Micro-Structured Materials, Shanghai 200092, China
| | - Xiaoyu Zhu
- Department of Optical Engineering, School of Physics, Hefei University of Technology, Hefei 230601, China
| | - Guangwei Hu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Guangtao Cao
- School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410004, China
| | - Jigang Hu
- Department of Optical Engineering, School of Physics, Hefei University of Technology, Hefei 230601, China
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
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6
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Abdul Ghani MA, Nordin AN, Zulhairee M, Che Mohamad Nor A, Shihabuddin Ahmad Noorden M, Muhamad Atan MKF, Ab Rahim R, Mohd Zain Z. Portable Electrochemical Biosensors Based on Microcontrollers for Detection of Viruses: A Review. BIOSENSORS 2022; 12:bios12080666. [PMID: 36005062 PMCID: PMC9406062 DOI: 10.3390/bios12080666] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 02/07/2023]
Abstract
With the rise of zoonotic diseases in recent years, there is an urgent need for improved and more accessible screening and diagnostic methods to mitigate future outbreaks. The recent COVID-19 pandemic revealed an over-reliance on RT-PCR, a slow, costly and lab-based method for diagnostics. To better manage the pandemic, a high-throughput, rapid point-of-care device is needed for early detection and isolation of patients. Electrochemical biosensors offer a promising solution, as they can be used to perform on-site tests without the need for centralized labs, producing high-throughput and accurate measurements compared to rapid test kits. In this work, we detail important considerations for the use of electrochemical biosensors for the detection of respiratory viruses. Methods of enhancing signal outputs via amplification of the analyte, biorecognition of elements and modification of the transducer are also explained. The use of portable potentiostats and microfluidics chambers that create a miniature lab are also discussed in detail as an alternative to centralized laboratory settings. The state-of-the-art usage of portable potentiostats for detection of viruses is also elaborated and categorized according to detection technique: amperometry, voltammetry and electrochemical impedance spectroscopy. In terms of integration with microfluidics, RT-LAMP is identified as the preferred method for DNA amplification virus detection. RT-LAMP methods have shorter turnaround times compared to RT-PCR and do not require thermal cycling. Current applications of RT-LAMP for virus detection are also elaborated upon.
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Affiliation(s)
- Muhammad Afiq Abdul Ghani
- MEMS-VLSI Research Unit, Department of Electrical and Computer Engineering, Engineering Faculty, International Islamic University Malaysia, Kuala Lumpur 53100, Federal Territory of Kuala Lumpur, Malaysia
| | - Anis Nurashikin Nordin
- MEMS-VLSI Research Unit, Department of Electrical and Computer Engineering, Engineering Faculty, International Islamic University Malaysia, Kuala Lumpur 53100, Federal Territory of Kuala Lumpur, Malaysia
- Correspondence:
| | - Munirah Zulhairee
- Electrochemical Material and Sensor (EMaS) Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
| | - Adibah Che Mohamad Nor
- Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, Bandar Puncak Alam 42300, Selangor, Malaysia
| | | | - Muhammad Khairul Faisal Muhamad Atan
- MEMS-VLSI Research Unit, Department of Electrical and Computer Engineering, Engineering Faculty, International Islamic University Malaysia, Kuala Lumpur 53100, Federal Territory of Kuala Lumpur, Malaysia
| | - Rosminazuin Ab Rahim
- MEMS-VLSI Research Unit, Department of Electrical and Computer Engineering, Engineering Faculty, International Islamic University Malaysia, Kuala Lumpur 53100, Federal Territory of Kuala Lumpur, Malaysia
| | - Zainiharyati Mohd Zain
- Electrochemical Material and Sensor (EMaS) Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
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Boccardo F, Pierre-Louis O. Controlling the Shape of Small Clusters with and without Macroscopic Fields. PHYSICAL REVIEW LETTERS 2022; 128:256102. [PMID: 35802436 DOI: 10.1103/physrevlett.128.256102] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Despite major advances in the understanding of the formation and dynamics of nanoclusters in the past decades, theoretical bases for the control of their shape are still lacking. We investigate strategies for driving fluctuating few-particle clusters to an arbitrary target shape in minimum time with or without an external field. This question is recast into a first passage problem, solved numerically, and discussed within a high temperature expansion. Without field, large-enough low-energy target shapes exhibit an optimal temperature at which they are reached in minimum time. We then compute the optimal way to set an external field to minimize the time to reach the target, leading to a gain of time that grows when increasing cluster size or decreasing temperature. This gain can shift the optimal temperature or even create one. Our results could apply to clusters of atoms at equilibrium, and colloidal or nanoparticle clusters under thermo- or electrophoresis.
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Affiliation(s)
- Francesco Boccardo
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, 69622 Villeurbanne, France
| | - Olivier Pierre-Louis
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, 69622 Villeurbanne, France
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Wang J, Wang C, Han Z, Tian H. On-chip trapping and sorting of nanoparticles using a single slotted photonic crystal nanobeam cavity. OPTICS EXPRESS 2022; 30:11192-11202. [PMID: 35473068 DOI: 10.1364/oe.449193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
In this work, we propose a slotted photonic crystal nanobeam cavity (PCNC) to trap and sort the 120 nm and 30 nm nanoparticles. The simulation shows that the maximum optical trapping force of the 120 nm particle is 38.7 pN/mW, and that of the 30 nm particle is 10.8 pN/mW. It is calculated that the trapping threshold power of the 120 nm particle is 35.3 µW, and that of the 30 nm particle is 41.6 µW. Because the width of the slot is 100 nm, when the input power is between 35.3 µW and 41.6 µW, only the 120 nm particle can be trapped in the upper cladding of the slotted-PCNC. When the input power is greater than 41.6 µW, the 120 nm particle is still trapped in the upper cladding of the slotted-PCNC, while the 30 nm particle is trapped inside the slot of the slotted-PCNC. By properly controlling the input power and the direction of flow in the microfluidic channel, the sorting of particles can be achieved. In addition, trapping of the particles causes different redshifts of peak wavelengths. Thus, the proposed slotted-PCNC can detect particle trapping and sorting by monitoring the resonant wavelength shifts. What is the most important, compared with previous reported single particle trapping work, is that the proposed work can realize both trapping and sorting. Therefore, provided with the ultra-compact footprint and excellent performance, the proposed slotted-PCNC shows great potential for a multifunctional lab-on-a-chip system.
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Dawson H, Elias J, Etienne P, Calas-Etienne S. The Rise of the OM-LoC: Opto-Microfluidic Enabled Lab-on-Chip. MICROMACHINES 2021; 12:1467. [PMID: 34945317 PMCID: PMC8706692 DOI: 10.3390/mi12121467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 01/04/2023]
Abstract
The integration of optical circuits with microfluidic lab-on-chip (LoC) devices has resulted in a new era of potential in terms of both sample manipulation and detection at the micro-scale. On-chip optical components increase both control and analytical capabilities while reducing reliance on expensive laboratory photonic equipment that has limited microfluidic development. Notably, in-situ LoC devices for bio-chemical applications such as diagnostics and environmental monitoring could provide great value as low-cost, portable and highly sensitive systems. Multiple challenges remain however due to the complexity involved with combining photonics with micro-fabricated systems. Here, we aim to highlight the progress that optical on-chip systems have made in recent years regarding the main LoC applications: (1) sample manipulation and (2) detection. At the same time, we aim to address the constraints that limit industrial scaling of this technology. Through evaluating various fabrication methods, material choices and novel approaches of optic and fluidic integration, we aim to illustrate how optic-enabled LoC approaches are providing new possibilities for both sample analysis and manipulation.
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10
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Panda K, Kim JE, Sankaran KJ, Lin IN, Haenen K, Duesberg GS, Park JY. Hydrogenation of diamond nanowire surfaces for effective electrostatic charge storage. NANOSCALE 2021; 13:7308-7321. [PMID: 33889909 DOI: 10.1039/d1nr00189b] [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
We report a novel versatile method for writing charged areas on diamond nanowire (DNW) surfaces using an atomic force microscopy (AFM) tip. Transmission electron microscopy (TEM) investigations revealed the existence of abundant plate-like diamond aggregates, which were encased in layers of graphite, forming nano-sized diamond-graphite composites (DGCs) on DNW surfaces. These DGCs are the main feature, acting as charge-trapping centers and storing electrostatic charge. A hydrogenation process has been observed effectively enhancing the charge-trapping properties of these DNW materials. The effective charge trapping properties with hydrogenation are ascribed to the disintegration of the DGCs into smaller pieces, with an overall increase in the metallic nanographitic phase fractions in a dielectric diamond matrix. Moreover, the written charge on the surface can be easily modified, re-written, or completely erased, enabling application in diamond-based re-writable electronic devices. However, excessive hydrogenation degrades the charge-trapping properties, which is attributed to the etching of the DGCs from the surface. This study demonstrates the potential importance of a simple hydrogenation process in effective electrostatic charge trapping and storage for diamond related nanocarbon materials and the role of DGCs to further enhance it.
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Affiliation(s)
- Kalpataru Panda
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea.
- Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
| | - Jae-Eun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea.
| | | | - I-Nan Lin
- Department of Physics, Tamkang University, 251 Tamsui, Taiwan, Republic of China
| | - Ken Haenen
- Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium
- IMOMEC, IMEC vzw, 3590 Diepenbeek, Belgium
| | - Georg S Duesberg
- Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
| | - Jeong Young Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea.
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, South Korea.
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11
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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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Lu D, Pedroni M, Labrador-Páez L, Marqués MI, Jaque D, Haro-González P. Nanojet Trapping of a Single Sub-10 nm Upconverting Nanoparticle in the Full Liquid Water Temperature Range. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006764. [PMID: 33502123 DOI: 10.1002/smll.202006764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Upconverting nanoparticles (UCNPs) have been used as optical probes in a great variety of scenarios ranging from cells to animal models. When optically trapped, a single UCNP can be remotely manipulated making possible, for instance, thermal scanning in the surroundings of a living cell. When conventional optics is used, the stability of an optically trapped UCNP is very limited. Its reduced size leads to optical potentials comparable to thermal energy, and up to now, stable optical trapping of a UCNP has been demonstrated only close to room temperature. This fact limits their use above room temperature, for instance, the use to investigate protein denaturalization that occurs in the 40-50 °C range. In this work, stable optical trapping of a single UCNP in the 20-90 °C range has been demonstrated by using a photonic nanojet. The use of an optically trapped microsphere makes it possible to overcome the diffraction limit producing another optical trap of smaller size and enhanced strength. This simple strategy leads not only to an improvement in the thermal stability of the optical trap but also to an enhancement of the emission intensity generated by the optically trapped UCNP.
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Affiliation(s)
- Dasheng Lu
- Fluorescence Imaging Group, Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Marco Pedroni
- Fluorescence Imaging Group, Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Lucía Labrador-Páez
- Department of Applied Physics, Royal Institute of Technology (KTH), Stockholm, 10044, Sweden
| | - Manuel I Marqués
- Departamento de Física de Materiales and IFIMAC and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Daniel Jaque
- Fluorescence Imaging Group, Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Patricia Haro-González
- Fluorescence Imaging Group, Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
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Yin S, He F, Kubo W, Wang Q, Frame J, Green NG, Fang X. Coherently tunable metalens tweezers for optofluidic particle routing. OPTICS EXPRESS 2020; 28:38949-38959. [PMID: 33379453 DOI: 10.1364/oe.411985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Nanophotonic particle manipulation exploits unique light shaping capabilities of nanophotonic devices to trap, guide, rotate and propel particles in microfluidic channels. Recent introduction of metalens into microfluidics research demonstrates the new capability of using nanophotonics devices for far-field optical manipulation. In this work we demonstrate, via numerical simulation, the first tunable metalens tweezers that function under dual-beam illumination. The phase profile of the metalens is modulated by controlling the relative strength and phase of the two coherent incident light beams. As a result, the metalens creates a thin sheet of focus inside a microchannel. Changes to the illumination condition allow the focus to be swept across the microchannel, thereby producing a controllable and reconfigurable path for particle transport. Particle routing in a Y-branch junction, for both nano- and microparticles, is evaluated as an example functionality for the tunable metalens tweezers. This work shows that tunable far-field particle manipulation can be achieved using near-field nano-engineering and coherent control, opening a new way for the integration of nanophotonics and microfluidics.
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14
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Guo Y, Liao Y, Yu Y, Shi Y, Xiong S. Nanoparticle trapping and manipulation using a silicon nanotrimer with polarized light. OPTICS LETTERS 2020; 45:5604-5607. [PMID: 33001959 DOI: 10.1364/ol.403754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
Optical tweezers based on plasmonics experience a tremendous development on manipulating nanoparticles but are unable to avoid the problem of Joule heating. In this Letter, we report a silicon nanotrimer to optically trap and manipulate nanoparticles with negligible local heating. The optical forces and trapping potential of the nanotrimer are investigated using the finite-difference time-domain method. The results indicate that the trapping position can be shifted by tuning the polarization of the incident light. Furthermore, the silicon nanotrimer enables simultaneous trapping of multiple nanoparticles using circularly polarized illumination. Our work provides a promising building block for an integrated all-dielectric platform to realize optically driven nanomanipulation, which offers new possibilities for on-chip optical applications.
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15
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Minin IV, Geints YE, Zemlyanov AA, Minin OV. Specular-reflection photonic nanojet: physical basis and optical trapping application. OPTICS EXPRESS 2020; 28:22690-22704. [PMID: 32752525 DOI: 10.1364/oe.400460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
A specular-reflection photonic nanojet (s-PNJ) is a specific type of optical near-field subwavelength spatial localization originated from the constructive interference of direct and backward propagated optical waves focused by a transparent dielectric microparticle located near a flat reflecting mirror. The unique property of s-PNJ is reported for maintaining its spatial localization and high intensity when using microparticles with high refractive index contrast when a regular photonic nanojet is not formed. The physical principles of obtaining subwavelength optical focus in the specular-reflection mode of a PNJ are numerically studied and a comparative analysis of jet parameters obtained by the traditional schemes without and with reflection is carried out. Based on the s-PNJ, the physical concept of an optical tweezer integrated into the microfluidic device is proposed provided by the calculations of optical trapping forces of the trial gold nanosphere. Importantly, such an optical trap shows twice as high stability to Brownian motion of the captured nano-bead as compared to the conventional nanojet-based traps and can be relatively easy implemented.
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16
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Ghosh S, Ghosh A. Next-Generation Optical Nanotweezers for Dynamic Manipulation: From Surface to Bulk. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5691-5708. [PMID: 32383606 DOI: 10.1021/acs.langmuir.0c00728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Optical traps based on strongly confined electromagnetic fields at metal-dielectric interfaces are far more efficient than conventional optical tweezers. Specifically, these near-field nanotweezers allow the trapping of smaller particles at lower optical intensities, which can impact diverse research fields ranging from soft condensed matter physics to materials science and biology. A major thrust in the past decade has been focused on extending the capabilities of plasmonically enhanced nanotweezers beyond diffusion-limited trapping on surfaces such as to achieve dynamic control in the bulk of fluidic environments. Here, we review the recent efforts in optical nanotweezers, especially those involving hybrid forcing schemes, covering both surface and bulk-based techniques. We summarize the important capabilities demonstrated with this promising approach, with niche applications in reconfigurable nanopatterning and on-chip assembly as well as in sorting and separating colloidal nanoparticles.
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17
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Liang Y, Yan S, Wang Z, Li R, Cai Y, He M, Yao B, Lei M. Simultaneous optical trapping and imaging in the axial plane: a review of current progress. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2020; 83:032401. [PMID: 31995793 DOI: 10.1088/1361-6633/ab7175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Optical trapping has become a powerful tool in numerous fields such as biology, physics, chemistry, etc. In conventional optical trapping systems, trapping and imaging share the same objective lens, confining the region of observation to the focal plane. For the capture of optical trapping processes occurring in other planes, especially the axial plane (the one containing the z-axis), many methods have been proposed to achieve this goal. Here, we review the methods of acquiring the axial-plane information from which axial plane trapping is observed and discuss their advantages and limitations. To overcome the limitations existing in these methods, we developed an optical tweezers system that allows for simultaneous optical trapping and imaging in the axial plane. The versatility and usefulness of the system in axial-plane trapping and imaging are demonstrated by investigating its trapping performance with various optical fields, including Bessel, Airy, and snake-like beams. The potential applications of the reported technique are suggested to several research fields, including optical pulling, longitudinal optical binding, tomographic phase microscopy (TPM), and super-resolution microscopy.
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Affiliation(s)
- Yansheng Liang
- Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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18
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Zhao X, Zhao N, Shi Y, Xin H, Li B. Optical Fiber Tweezers: A Versatile Tool for Optical Trapping and Manipulation. MICROMACHINES 2020; 11:E114. [PMID: 31973061 PMCID: PMC7074902 DOI: 10.3390/mi11020114] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/10/2020] [Accepted: 01/16/2020] [Indexed: 12/20/2022]
Abstract
Optical trapping is widely used in different areas, ranging from biomedical applications, to physics and material sciences. In recent years, optical fiber tweezers have attracted significant attention in the field of optical trapping due to their flexible manipulation, compact structure, and easy fabrication. As a versatile tool for optical trapping and manipulation, optical fiber tweezers can be used to trap, manipulate, arrange, and assemble tiny objects. Here, we review the optical fiber tweezers-based trapping and manipulation, including dual fiber tweezers for trapping and manipulation, single fiber tweezers for trapping and single cell analysis, optical fiber tweezers for cell assembly, structured optical fiber for enhanced trapping and manipulation, subwavelength optical fiber wire for evanescent fields-based trapping and delivery, and photothermal trapping, assembly, and manipulation.
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Affiliation(s)
| | | | | | - Hongbao Xin
- Institute of Nanophotonics, Jinan University, Guangzhou 511443, China; (X.Z.); (N.Z.); (Y.S.); (B.L.)
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19
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Yin S, He F, Green N, Fang X. Nanoparticle trapping and routing on plasmonic nanorails in a microfluidic channel. OPTICS EXPRESS 2020; 28:1357-1368. [PMID: 32121848 DOI: 10.1364/oe.384748] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
Plasmonic nanostructures hold great promise for enabling advanced optical manipulation of nanoparticles in microfluidic channels, resulting from the generation of strong and controllable light focal points at the nanoscale. A primary remaining challenge in the current integration of plasmonics and microfluidics is to transport trapped nanoparticles along designated routes. Here we demonstrate through numerical simulation a plasmonic nanoparticle router that can trap and route a nanoparticle in a microfluidic channel with a continuous fluidic flow. The nanoparticle router contains a series of gold nanostrips on top of a continuous gold film. The nanostrips support both localised and propagating surface plasmons under light illumination, which underpin the trapping and routing functionalities. The nanoparticle guiding at a Y-branch junction is enabled by a small change of 50 nm in the wavelength of incident light.
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20
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Lu F, Kuai Y, Chen J, Tang X, Xiang Y, Liu Y, Wang P, Lakowicz JR, Zhang D. Switchable Assembly and Guidance of Colloidal Particles on an All-Dielectric One-Dimensional Photonic Crystal. PHYSICAL REVIEW APPLIED 2020; 13:014020. [PMID: 34113692 PMCID: PMC8189027 DOI: 10.1103/physrevapplied.13.014020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Dielectric multilayer photonic-band-gap structures, called one-dimensional photonic crystals (1DPCs), have drawn considerable attention in the fields of physics, chemistry, and biophotonics. Here, experimental results verify the feasibility of a 1DPC working as a substrate for switchable manipulations of colloidal microparticles. The optically induced thermal convective force on a 1DPC can assemble colloidal particles that are dispersed in a water solution, while the photonic scattering force on the same 1DPC caused by propagating evanescent waves can guide these particles. Additionally, in the 1DPC, one internal mode can be excited that has seldom been noticed previously. This mode shows an ability to assemble particles over large areas even when the incident power is low. The assembly and guidance of colloidal particles on the 1DPC are switchable just through tuning the polarization and angle of the incident laser beam. Numerical simulations are carried out, which are consistent with these experimental observations.
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Affiliation(s)
- Fengya Lu
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yan Kuai
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Junxue Chen
- School of Science, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
| | - Xi Tang
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yifeng Xiang
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yang Liu
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Pei Wang
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Joseph. R. Lakowicz
- Center for Fluorescence Spectroscopy, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, 725 West Lombard St., Baltimore, Maryland 21201, USA
| | - Douguo Zhang
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
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21
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Badman RP, Ye F, Wang MD. Towards biological applications of nanophotonic tweezers. Curr Opin Chem Biol 2019; 53:158-166. [PMID: 31678712 DOI: 10.1016/j.cbpa.2019.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/24/2019] [Accepted: 09/27/2019] [Indexed: 02/07/2023]
Abstract
Optical trapping (synonymous with optical tweezers) has become a core biophysical technique widely used for interrogating fundamental biological processes on size scales ranging from the single-molecule to the cellular level. Recent advances in nanotechnology have led to the development of 'nanophotonic tweezers,' an exciting new class of 'on-chip' optical traps. Here, we describe how nanophotonic tweezers are making optical trap technology more broadly accessible and bringing unique biosensing and manipulation capabilities to biological applications of optical trapping.
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Affiliation(s)
- Ryan P Badman
- Department of Physics & LASSP, Cornell University, Ithaca, NY 14853, USA
| | - Fan Ye
- Department of Physics & LASSP, Cornell University, Ithaca, NY 14853, USA; Howard Hughes Medical Institute, Cornell University, Ithaca, NY 14853, USA
| | - Michelle D Wang
- Department of Physics & LASSP, Cornell University, Ithaca, NY 14853, USA; Howard Hughes Medical Institute, Cornell University, Ithaca, NY 14853, USA.
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22
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Abbasi MM, Darbari S, Moravvej-Farshi MK. Tunable plasmonic force switch based on graphene nano-ring resonator for nanomanipulation. OPTICS EXPRESS 2019; 27:26648-26660. [PMID: 31674541 DOI: 10.1364/oe.27.026648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/20/2019] [Indexed: 06/10/2023]
Abstract
Using a plasmonic graphene ring resonator of resonant frequency 10.38 THz coupled to a plasmonic graphene waveguide, we design a lab-on-a-chip optophoresis system that can function as an efficient plasmonic force switch. Finite difference time domain numerical simulations reveal that an appropriate choice of chemical potentials of the waveguide and ring resonator keeps the proposed structure in on-resonance condition, enabling the system to selectively trap a nanoparticle. Moreover, a change of 250 meV in the ring chemical potential (i.e., equivalent to 2.029 V change in the corresponding applied bias) switches the structure to a nearly perfect off-resonance condition, releasing the trapped particle. The equivalent plasmonic switch ON/OFF ratio at the waveguide output is -15.519 dB. The designed system has the capability of trapping, sorting, controlling, and separating PS nanoparticles of diameters ≥30 nm with a THz source intensity of 14.78 mW/µm2 and ≥22 nm with 29.33 mW/µm2.
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23
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Minin IV, Minin OV, Cao Y, Liu Z, Geints YE, Karabchevsky A. Optical vacuum cleaner by optomechanical manipulation of nanoparticles using nanostructured mesoscale dielectric cuboid. Sci Rep 2019; 9:12748. [PMID: 31485009 PMCID: PMC6726766 DOI: 10.1038/s41598-019-49277-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/22/2019] [Indexed: 11/10/2022] Open
Abstract
Here, we propose the concept of an "optical vacuum cleaner" for optomechanical manipulation of nanoparticles. We utilize a dielectric cuboid to generate an optical gradient force exerted on the nanoparticles for particle's hovering and trapping. We show that the permittivity contrast between the particle and the nanohole leads to the deep subwavelength light confinement and enhancement at the opening of the nanohole located at the shadow surface of the particle. The proposed "optical vacuum cleaner" can be utilized in optomechanical manipulations on particles such as noble metal nanoparticles adsorbed on surfaces or controlling the particles taking part in cellular uptake.
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Affiliation(s)
- Igor V Minin
- Tomsk Polytechnic University, 36 Lenin Avenue, Tomsk, 634050, Russia. .,Tomsk State University, 30 Lenin Avenue, Tomsk, 634050, Russia.
| | - Oleg V Minin
- Tomsk Polytechnic University, 36 Lenin Avenue, Tomsk, 634050, Russia.,Tomsk State University, 30 Lenin Avenue, Tomsk, 634050, Russia
| | - Yinghui Cao
- College of Computer Science and Technology, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Zhenyu Liu
- Changchun Institute of Optics, Fine Mechanics and Physics, 3888 East Nanhu Road, Changchun, 130033, China
| | - Yuri E Geints
- V.E. Zuev Institute of Atmospheric Optics SB RAS, Zuev square 1, Tomsk, 634021, Russia
| | - Alina Karabchevsky
- School of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel.
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24
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Badman RP, Ye F, Caravan W, Wang MD. High Trap Stiffness Microcylinders for Nanophotonic Trapping. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25074-25080. [PMID: 31274286 PMCID: PMC6946062 DOI: 10.1021/acsami.9b10041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Nanophotonic waveguides have enabled on-chip optical trap arrays for high-throughput manipulation and measurements. However, the realization of the full potential of these devices requires trapping enhancement for applications that need large trapping force. Here, we demonstrate a solution via fabrication of high refractive index cylindrical trapping particles. Using two different fabrication processes, a cleaving method and a novel lift-off method, we produced cylindrical silicon nitride (Si3N4) particles and characterized their trapping properties using the recently developed nanophotonic standing-wave array trap (nSWAT) platform. Relative to conventionally used polystyrene microspheres, the fabricated Si3N4 microcylinders attain an approximately 3- to 6-fold trap stiffness enhancement. Furthermore, both fabrication processes permit tunable microcylinder geometry, and the lift-off method also results in ultrasmooth surface termination of the ends of the microcylinders. These combined features make the Si3N4 microcylinders uniquely suited for a broad range of high-throughput, high-force, nanophotonic waveguide-based optical trapping applications.
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Affiliation(s)
- Ryan P. Badman
- Department of Physics - LASSP, Cornell University, Ithaca, New York 14853
| | - Fan Ye
- Department of Physics - LASSP, Cornell University, Ithaca, New York 14853
- Howard Hughes Medical Institute, Cornell University, Ithaca, New York 14853
| | - Wagma Caravan
- Department of Physics - LASSP, Cornell University, Ithaca, New York 14853
- Current address: Department of Chemistry, Adelphi University, Garden City, NY 11530
| | - Michelle D. Wang
- Department of Physics - LASSP, Cornell University, Ithaca, New York 14853
- Howard Hughes Medical Institute, Cornell University, Ithaca, New York 14853
- corresponding author:
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25
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Zaman MA, Padhy P, Hesselink L. Fokker-Planck analysis of optical near-field traps. Sci Rep 2019; 9:9557. [PMID: 31266994 PMCID: PMC6606609 DOI: 10.1038/s41598-019-45609-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/06/2019] [Indexed: 11/09/2022] Open
Abstract
The motion of a nanoparticle in the vicinity of a near-field optical trap is modeled using the Fokker-Planck equation. A plasmonic C-shaped engraving on a gold film is considered as the optical trap. The time evolution of the position probability density of the nanoparticle is calculated to analyze the trapping dynamics. A spatially varying diffusion tensor is used in the formulation to take into account the hydrodynamic interactions. The steady-state position distribution obtained from the Fokker-Planck equation is compared with experimental results and found to be in good agreement. Computational cost of the proposed method is compared with the conventionally used Langevin equation based approach. The proposed method is found to be computationally efficient (requiring 35 times less computation time) and scalable to more complex lab-on-a-chip systems.
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Affiliation(s)
| | - Punnag Padhy
- Stanford University, Electrical Engineering, Stanford, CA, 94305, USA
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26
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Krishnan A, Povinelli ML. Tunable, polarization-sensitive, dual guided-resonance modes in photonic crystals. OPTICS EXPRESS 2019; 27:17658-17666. [PMID: 31252722 DOI: 10.1364/oe.27.017658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 05/30/2019] [Indexed: 06/09/2023]
Abstract
We present a photonic-crystal design which supports multiple guided-resonance modes in a narrow spectral range. Introduction of mutually-orthogonal slots within a conventional lattice allows us to create polarization-sensitive guided modes with distinct near-field periodicities and tunable resonance wavelengths. The device can potentially be used as a reconfigurable optical trap, multiband tunable filter, or differential sensor.
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27
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Wang H, Zhang J, Wu X, Shen D. On-resonance photonic nanojets for nanoparticle trapping. OPTICS EXPRESS 2019; 27:10472-10481. [PMID: 31052906 DOI: 10.1364/oe.27.010472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We present an optical-trapping scheme based on an on-resonance photonic nanojet (PNJ) excited using a plane wave. A two-dimensional numerical simulation demonstrates that a PNJ is enhanced through resonance with whispering gallery modes (WGMs) and achieves a larger spatial distribution, providing a stable trapping region for nanoparticles nearly four times larger than those of the WGM nodes without broadening by the PNJ. To further enlarge the trapping region, an asymmetric micro-resonator lengthens the mode field of the on-resonance PNJ. We also propose an effective method for addressing the nanoparticle-induced resonance detuning through exciting high-order WGMs of a larger-mode field volume.
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28
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Zaman MA, Padhy P, Hesselink L. Near-field optical trapping in a non-conservative force field. Sci Rep 2019; 9:649. [PMID: 30679539 PMCID: PMC6345878 DOI: 10.1038/s41598-018-36653-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/26/2018] [Indexed: 11/17/2022] Open
Abstract
The force-field generated by a near-field optical trap is analyzed. A C-shaped engraving on a gold film is considered as the trap. By separating out the conservative component and the solenoidal component of the force-field using Helmholtz-Hodge decomposition, it was found that the force is non-conservative. Conventional method of calculating the optical potential from the force-field is shown to be inaccurate when the trapping force is not purely conservative. An alternative method is presented to accurately estimate the potential. The positional statistics of a trapped nanoparticle in this non-conservative field is calculated. A model is proposed that relates the position distribution to the conservative component of the force. The model is found to be consistent with numerical and experimental results. In order to show the generality of the approach, the same analysis is repeated for a plasmonic trap consisting of a gold nanopillar. Similar consistency is observed for this structure as well.
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Affiliation(s)
- Mohammad Asif Zaman
- Department of Electrical Engineering, Stanford University, Stanford, CA, 94305, USA.
| | - Punnag Padhy
- Department of Electrical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Lambertus Hesselink
- Department of Electrical Engineering, Stanford University, Stanford, CA, 94305, USA
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29
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Davydova N, Rodriguez XR, Blázquez C, Gómez A, Perevyazko I, Guasch J, Sergeev V, Laukhina E, Ratera I, Veciana J. Functionalization of polyacrylamide for nanotrapping positively charged biomolecules. RSC Adv 2019; 9:15402-15409. [PMID: 35514832 PMCID: PMC9064249 DOI: 10.1039/c8ra07764a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 05/09/2019] [Indexed: 11/21/2022] Open
Abstract
Engineering new materials which are capable of trapping biomolecules in nanoscale quantities, is crucial in order to achieve earlier diagnostics in different diseases. This article demonstrates that using free radical copolymerization, polyacrylamide can be successfully functionalized with specific synthons for nanotrapping positively charged molecules, such as numerous proteins, through electrostatic interactions due to their negative charge. Specifically, two functional random copolymers, acrylamide/acrylic acid (1) and acrylamide/acrylic acid/N-(pyridin-4-yl-methyl)acrylamide (2), whose negative net charges differ in their water solutions, were synthetized and their ability to trap positively charged proteins was studied using myoglobin as a proof-of-concept example. In aqueous solutions, copolymer 1, whose net charge for a 100 chain fragment (QpH 6/M) is −1.323 × 10−3, interacted with myoglobin forming a stable monodisperse nanosuspension. In contrast, copolymer 2, whose value of QpH 6/M equals −0.361 × 10−3, was not able to form stable particles with myoglobin. Nevertheless, thin films of both copolymers were grown using a dewetting process, which exhibited nanoscale cavities capable of trapping different amounts of myoglobin, as demonstrated by bimodal AFM imaging. The simple procedures used to build protein traps make this engineering approach promising for the development of new materials for biomedical applications where trapping biomolecules is required. Engineering new materials which are capable of trapping biomolecules in nanoscale quantities, is crucial in order to achieve earlier diagnostics in different diseases.![]()
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Affiliation(s)
- Nadejda Davydova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Xavier R. Rodriguez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
- 08193 Barcelona
- Spain
- Department of Molecular Nanoscience and Organic Materials
- Institute of Materials Science of Barcelona (ICMAB-CSIC)
| | - Carlos Blázquez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
- 08193 Barcelona
- Spain
- Department of Molecular Nanoscience and Organic Materials
- Institute of Materials Science of Barcelona (ICMAB-CSIC)
| | - Andrés Gómez
- SPM Service
- Institute of Materials Science of Barcelona (ICMAB-CSIC)
- 08193 Barcelona
- Spain
| | - Igor Perevyazko
- Department of Molecular Biophysics and Polymer Physics
- St. Petersburg State University
- 198504 St. Petersburg
- Russia
| | - Judith Guasch
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
- 08193 Barcelona
- Spain
- Department of Molecular Nanoscience and Organic Materials
- Institute of Materials Science of Barcelona (ICMAB-CSIC)
| | - Vladimir Sergeev
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Elena Laukhina
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
- 08193 Barcelona
- Spain
- Department of Molecular Nanoscience and Organic Materials
- Institute of Materials Science of Barcelona (ICMAB-CSIC)
| | - Imma Ratera
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
- 08193 Barcelona
- Spain
- Department of Molecular Nanoscience and Organic Materials
- Institute of Materials Science of Barcelona (ICMAB-CSIC)
| | - Jaume Veciana
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
- 08193 Barcelona
- Spain
- Department of Molecular Nanoscience and Organic Materials
- Institute of Materials Science of Barcelona (ICMAB-CSIC)
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30
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Krishnan A, Wu SH, Povinelli M. Tunable size selectivity and nanoparticle immobilization on a photonic crystal optical trap. OPTICS LETTERS 2018; 43:5399-5402. [PMID: 30383017 DOI: 10.1364/ol.43.005399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/07/2018] [Indexed: 06/08/2023]
Abstract
We harness residual thermal effects in a low-absorptivity system to manipulate parallel optical trapping of particles on the nanoscale. A photonic crystal is used to generate a 2D array of optical traps. We show that the size selectivity of the trap can be tuned by adding a non-ionic surfactant to the solution, altering the thermophoretic effect that delivers nanoparticles to trapping sites. We further show that particles can be permanently immobilized on the photonic crystal via photopolymerization of the trapping medium.
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31
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An R, Wang G, Ji W, Jiao W, Jiang M, Chang Y, Xu X, Zou N, Zhang X. Controllable trapping and releasing of nanoparticles by a standing wave on optical waveguides. OPTICS LETTERS 2018; 43:3901-3904. [PMID: 30106912 DOI: 10.1364/ol.43.003901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 07/08/2018] [Indexed: 06/08/2023]
Abstract
Based on the balance between the scattering force and the trapping force of an evanescent field of a standing wave on silicon waveguides, we propose a structure for controllable trapping and releasing of nanoparticles, which can act as pause operation for nanoparticle flow control. The design is realized by the cascade of an optical switch with a structure of a ring-assisted Mach-Zehnder interferometer (RAMZI) and a Sagnac loop reflector which connects to one output of the switch. Through thermal tuning, with a tiny refractive index change of 4.3×10-4 on a ring resonator, the output of a RAMZI can be switched between two ports. As for the release state of the nanoparticle flow, the light is guided to the port without a reflector. There is no standing wave or traps formed on a waveguide. Therefore, the scattering force dominates, which drives particles moving forward to output ports. Otherwise, for trapping a state, the light will be reflected by the Sagnac loop and form a stationary standing wave which provides an array of traps for nanoparticles. Most importantly, the structure can switch its state to trap or sequentially release particles without losing the control of samples which, to the best of our knowledge, has not been realized before. With the statistical description of particle motion, the balance between trapping and releasing is distinguished by the trapping time and tuned by reflectance. The feasibility of our design is verified using the three-dimensional finite-difference time domain and Maxwell stress tensor methods. Our structure possesses the merits of high compactness and time effectiveness and, thereby, it is highly suitable for on-chip optical manipulation of nanoparticle flow control, which brings great potential in integrated on-chip optofluidics.
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Pin C, Jager JB, Tardif M, Picard E, Hadji E, de Fornel F, Cluzel B. Optical tweezing using tunable optical lattices along a few-mode silicon waveguide. LAB ON A CHIP 2018; 18:1750-1757. [PMID: 29774333 DOI: 10.1039/c8lc00298c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fourteen years ago, optical lattices and holographic tweezers were considered as a revolution, allowing for trapping and manipulating multiple particles at the same time using laser light. Since then, near-field optical forces have aroused tremendous interest as they enable efficient trapping of a wide range of objects, from living cells to atoms, in integrated devices. Yet, handling at will multiple objects using a guided light beam remains a challenging task for current on-chip optical trapping techniques. We demonstrate here on-chip optical trapping of dielectric microbeads and bacteria using one-dimensional optical lattices created by near-field mode beating along a few-mode silicon nanophotonic waveguide. This approach allows not only for trapping large numbers of particles in periodic trap arrays with various geometries, but also for manipulating them via diverse transport and repositioning techniques. Near-field mode-beating optical lattices may be readily implemented in lab-on-a-chip devices, addressing numerous scientific fields ranging from bio-analysis to nanoparticle processing.
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Affiliation(s)
- C Pin
- Groupe Optique de Champ Proche, Laboratoire Interdisciplinaire Carnot de Bourgogne UMR CNRS 6303, Université de Bourgogne Franche-Comté, 21078 Dijon, France.
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Paiè P, Zandrini T, Vázquez RM, Osellame R, Bragheri F. Particle Manipulation by Optical Forces in Microfluidic Devices. MICROMACHINES 2018; 9:E200. [PMID: 30424133 PMCID: PMC6187572 DOI: 10.3390/mi9050200] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/18/2018] [Accepted: 04/20/2018] [Indexed: 01/09/2023]
Abstract
Since the pioneering work of Ashkin and coworkers, back in 1970, optical manipulation gained an increasing interest among the scientific community. Indeed, the advantages and the possibilities of this technique are unsubtle, allowing for the manipulation of small particles with a broad spectrum of dimensions (nanometers to micrometers size), with no physical contact and without affecting the sample viability. Thus, optical manipulation rapidly found a large set of applications in different fields, such as cell biology, biophysics, and genetics. Moreover, large benefits followed the combination of optical manipulation and microfluidic channels, adding to optical manipulation the advantages of microfluidics, such as a continuous sample replacement and therefore high throughput and automatic sample processing. In this work, we will discuss the state of the art of these optofluidic devices, where optical manipulation is used in combination with microfluidic devices. We will distinguish on the optical method implemented and three main categories will be presented and explored: (i) a single highly focused beam used to manipulate the sample, (ii) one or more diverging beams imping on the sample, or (iii) evanescent wave based manipulation.
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Affiliation(s)
- Petra Paiè
- Istituto di Fotonica e Nanotecnlogie IFN-CNR, Piazza Leonardo da Vinci 32, Milano 20133, Italy.
| | - Tommaso Zandrini
- Istituto di Fotonica e Nanotecnlogie IFN-CNR, Piazza Leonardo da Vinci 32, Milano 20133, Italy.
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano 20133, Italy.
| | - Rebeca Martínez Vázquez
- Istituto di Fotonica e Nanotecnlogie IFN-CNR, Piazza Leonardo da Vinci 32, Milano 20133, Italy.
| | - Roberto Osellame
- Istituto di Fotonica e Nanotecnlogie IFN-CNR, Piazza Leonardo da Vinci 32, Milano 20133, Italy.
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano 20133, Italy.
| | - Francesca Bragheri
- Istituto di Fotonica e Nanotecnlogie IFN-CNR, Piazza Leonardo da Vinci 32, Milano 20133, Italy.
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Huft PR, Kolbow JD, Thweatt JT, Lindquist NC. Holographic Plasmonic Nanotweezers for Dynamic Trapping and Manipulation. NANO LETTERS 2017; 17:7920-7925. [PMID: 29144755 DOI: 10.1021/acs.nanolett.7b04289] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We demonstrate dynamic trapping and manipulation of nanoparticles with plasmonic holograms. By tailoring the illumination pattern of an incident light beam with a computer-controlled spatial light modulator, constructive and destructive interference of plasmon waves create a focused hotspot that can be moved across a surface. Specifically, a computer-generated hologram illuminating the perimeter of a silver Bull's Eye nanostructure generates surface plasmons that propagate toward the center. Shifting the phase of the plasmon waves as a function of space gives complete control over the location of the focus. We show that 200 nm diameter nanoparticles trapped in this focus can be moved in arbitrary patterns. This allows, for example, circular motion with linearly polarized light. These results show the versatility of holographically generated surface plasmon waves for advanced trapping and manipulation of nanoparticles.
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Affiliation(s)
- Preston R Huft
- Physics Department, Bethel University , St. Paul, Minnesota 55112, United States
| | - Joshua D Kolbow
- Physics Department, Bethel University , St. Paul, Minnesota 55112, United States
| | - Jonathan T Thweatt
- Physics Department, Bethel University , St. Paul, Minnesota 55112, United States
| | - Nathan C Lindquist
- Physics Department, Bethel University , St. Paul, Minnesota 55112, United States
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Ma K, Han S, Zhang L, Shi Y, Dai D. Optical forces in silicon subwavelength-grating waveguides. OPTICS EXPRESS 2017; 25:30876-30884. [PMID: 29245767 DOI: 10.1364/oe.25.030876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 11/19/2017] [Indexed: 06/07/2023]
Abstract
A theoretical analysis is given for the optical forces induced by the Bloch mode propagating along a silicon subwavelength-grating (SWG) waveguide for the first time. As a periodical structure, an SWG waveguide supports periodical light field distribution along the waveguide. This makes it possible to trap many nano-particles stably periodically, which is very different from the case with a conventional optical waveguide. The separation of the trapped nano-particles can be designed easily by modifying the grating period of an SWG waveguide. Furthermore, an SWG waveguide has larger working distance in the lateral direction to trap nano-particles around the waveguide than a conventional optical waveguide.
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Liu X, Huang J, Li Y, Zhang Y, Li B. Optofluidic organization and transport of cell chain. JOURNAL OF BIOPHOTONICS 2017; 10:1627-1635. [PMID: 28464453 DOI: 10.1002/jbio.201600306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/21/2017] [Accepted: 03/06/2017] [Indexed: 05/17/2023]
Abstract
Controllable organization and transport of cell chain in a fluid, which is of great importance in biological and medical fields, have attracted increasing attentions in recent years. Here we demonstrate an optofluidic strategy, by implanting the microfluidic technique with a large-tapered-angle fiber probe (LTAP), to organize and transport a cell chain in a noncontact and noninvasive manner. After a laser beam at 980-nm wavelength launched into LTAP, the E. coli cells were continuously trapped and then arranged into a cell chain one after another. The chain can be transported by adjusting the magnitudes of optical force and flow drag force. The proposed technique can also be applied for the eukaryotic cells (e. g., yeast cell) and human red blood cells (RBCs). Experiment results were interpreted by the numerical simulation, and the stiffness of cell chain was also discussed.
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Affiliation(s)
- Xiaoshuai Liu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jianbin Huang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yuchao Li
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yao Zhang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
| | - Baojun Li
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
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Sukhov S, Dogariu A. Non-conservative optical forces. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2017; 80:112001. [PMID: 28762956 DOI: 10.1088/1361-6633/aa834e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Undoubtedly, laser tweezers are the most recognized application of optically induced mechanical action. Their operation is usually described in terms of conservative forces originating from intensity gradients. However, the fundamental optical action on matter is non-conservative. We will review different manifestations of non-conservative optical forces (NCF) and discuss their dependence on the specific spatial properties of optical fields that generate them. New developments relevant to the NCF such as tractor beams and transversal forces are also discussed.
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Affiliation(s)
- Sergey Sukhov
- CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816, United States of America
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Maslov AV. Levitation and propulsion of a Mie-resonance particle by a surface plasmon. OPTICS LETTERS 2017; 42:3327-3330. [PMID: 28957096 DOI: 10.1364/ol.42.003327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
It is predicted that the optical force induced by a surface plasmon can form a stable equilibrium position for a resonant particle at a finite distance from the surface. The levitated particle can be efficiently propelled along the surface without touching it. The levitation originates from the strong interaction of the particle with the surface.
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Cheng F, Kuang DF, Dong LQ, Cao YY, Gu PC. Tuning of nanofocused vector vortex beam of metallic granary-shaped nanotip with spin-dependent dielectric helical cone. OPTICS EXPRESS 2017; 25:17393-17401. [PMID: 28789231 DOI: 10.1364/oe.25.017393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 07/04/2017] [Indexed: 06/07/2023]
Abstract
We present the combined configuration of dielectric helical cone and metallic granary-shaped nanotip to produce three -dimensional vector vortex nanofocused optical field. The intensity and phase of the electric fields, and Povnting vector of the optical field generated by the combined configuration with linearly polarized illumination are studied with three-dimensional finite difference time-domain method. The localized vector electric field near the apex of the metallic granary-shaped nanotip is strongly depended on the chirality of the dielectric helical cone and the bottom radius of the metallic granary-shaped nanotip. The localized vector electric field is wavelength selective with the maximum intensity enhancement up to 104 times and minimum size of about 900 nm2, and the maximum radial electric field rotates 67.0° along z axis. This indicates the vector vortex beam generated by the combined configuration can be applied in nanofabrication, nano-sensing and nano-manipulation.
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Shi YZ, Xiong S, Chin LK, Yang Y, Zhang JB, Ser W, Wu JH, Chen TN, Yang ZC, Hao YL, Liedberg B, Yap PH, Zhang Y, Liu AQ. High-resolution and multi-range particle separation by microscopic vibration in an optofluidic chip. LAB ON A CHIP 2017. [PMID: 28634603 DOI: 10.1039/c7lc00484b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
An optofluidic chip is demonstrated in experiments for high-resolution and multi-range particle separation through the optically-induced microscopic vibration effect, where nanoparticles are trapped in loosely overdamped optical potential wells created with combined optical and fluidic constraints. It is the first demonstration of separating single nanoparticles with diameters ranging from 60 to 100 nm with a resolution of 10 nm. Nanoparticles vibrate with an amplitude of 3-7 μm in the loosely overdamped potential wells in the microchannel. The proposed optofluidic device is capable of high-resolution particle separation at both nanoscale and microscale without reconfiguring the device. The separation of bacteria from other larger cells is accomplished using the same chip and operation conditions. The unique trapping mechanism and the superb performance in high-resolution and multi-range particle separation of the proposed optofluidic chip promise great potential for a diverse range of biomedical applications.
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Affiliation(s)
- Y Z Shi
- School of Mechanical Engineering, Xi'an Jiao Tong University, Xian 710049, China
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43
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Smith CLC, Thilsted AH, Pedersen JN, Youngman TH, Dyrnum JC, Michaelsen NA, Marie R, Kristensen A. Photothermal Transport of DNA in Entropy-Landscape Plasmonic Waveguides. ACS NANO 2017; 11:4553-4563. [PMID: 28453288 DOI: 10.1021/acsnano.6b08563] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ability to handle single, free molecules in lab-on-a-chip systems is key to the development of advanced biotechnologies. Entropic confinement offers passive control of polymers in nanofluidic systems by locally asserting a molecule's number of available conformation states through structured landscapes. Separately, a range of plasmonic configurations have demonstrated active manipulation of nano-objects by harnessing concentrated electric fields. The integration of these two independent techniques promises a range of sophisticated and complementary functions to handle, for example, DNA, but numerous difficulties, in particular, conflicting requirements of channel size, have prevented progress. Here, we show that metallic V-groove waveguides, embedded in fluidic nanoslits, form entropic potentials that trap and guide DNA molecules over well-defined routes while simultaneously promoting photothermal transport of DNA through the losses of plasmonic modes. The propulsive forces, assisted by in-coupling to propagating channel plasmon polaritons, extend along the V-grooves with a directed motion up to ≈0.5 μm·mW-1 away from the input beam and λ-DNA velocities reaching ≈0.2 μm·s-1·mW-1. The entropic trapping enables the V-grooves to be flexibly loaded and unloaded with DNA by variation of transverse fluid flow, a process that is selective to biopolymers versus fixed-shape objects and also allows the technique to address the challenges of nanoscale interaction volumes. Our self-aligning, light-driven actuator provides a convenient platform to filter, route, and manipulate individual molecules and may be realized wholly by wafer-scale fabrication suitable for parallelized investigation.
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Affiliation(s)
- Cameron L C Smith
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
| | - Anil H Thilsted
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
| | - Jonas N Pedersen
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
| | - Tomas H Youngman
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
| | - Julia C Dyrnum
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
| | - Nicolai A Michaelsen
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
| | - Rodolphe Marie
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
| | - Anders Kristensen
- Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800 Kongens Lyngby, Denmark
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Baker JE, Badman RP, Wang MD. Nanophotonic trapping: precise manipulation and measurement of biomolecular arrays. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 10. [PMID: 28439980 DOI: 10.1002/wnan.1477] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/20/2017] [Accepted: 03/22/2017] [Indexed: 12/13/2022]
Abstract
Optical trapping is a powerful and widely used laboratory technique in the biological and materials sciences that enables rapid manipulation and measurement at the nanometer scale. However, expanding the analytical throughput of this technique beyond the serial capabilities of established single-trap microscope-based optical tweezers remains a current goal in the field. In recent years, advances in nanotechnology have been leveraged to create innovative optical trapping methods that increase the number of available optical traps and permit parallel manipulation and measurement of arrays of optically trapped targets. In particular, nanophotonic trapping holds significant promise for integration with other lab-on-a-chip technologies to yield compact, robust analytical devices. In this review, we highlight progress in nanophotonic manipulation and measurement, as well as the potential for implementing these on-chip functionalities in biological research and biomedical applications. WIREs Nanomed Nanobiotechnol 2018, 10:e1477. doi: 10.1002/wnan.1477 This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology.
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Affiliation(s)
- James E Baker
- Howard Hughes Medical Institute, Cornell University, Ithaca, NY, USA.,Department of Physics - LASSP, Cornell University, Ithaca, NY, USA
| | - Ryan P Badman
- Department of Physics - LASSP, Cornell University, Ithaca, NY, USA
| | - Michelle D Wang
- Howard Hughes Medical Institute, Cornell University, Ithaca, NY, USA.,Department of Physics - LASSP, Cornell University, Ithaca, NY, USA
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Ye F, Soltani M, Inman JT, Wang MD. Tunable nanophotonic array traps with enhanced force and stability. OPTICS EXPRESS 2017; 25:7907-7918. [PMID: 28380908 DOI: 10.1364/oe.25.007907] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A nanophotonic trapping platform based on on-chip tunable optical interference allows parallel processing of biomolecules and holds promise to make single molecule manipulation and precision measurements more easily and broadly available. The nanophotonic standing wave array trap (nSWAT) device [Nat. Nanotechnol. 9, 448 (2014); Nano Lett. 16, 6661 (2016)] represents such a platform and can trap a large array of beads by the evanescent field of the standing wave of a nanophotonic waveguide and reposition them using an integrated microheater. In this paper, by taking a systematic design approach, we present a new generation of nSWAT devices with significant enhancement of the optical trapping force, stiffness, and stability, while the quality of the standing wave trap is resistant to fabrication imperfections. The device is implemented on a silicon nitride photonic platform and operates at 1064 nm wavelength which permits low optical absorption by the aqueous solution. Such performance improvements open a broader range of applications based on these on-chip optical traps.
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Hristov DR, Ye D, de Araújo JM, Ashcroft C, DiPaolo B, Hart R, Earhart C, Lopez H, Dawson KA. Using single nanoparticle tracking obtained by nanophotonic force microscopy to simultaneously characterize nanoparticle size distribution and nanoparticle-surface interactions. NANOSCALE 2017; 9:4524-4535. [PMID: 28317988 DOI: 10.1039/c6nr09331k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Comprehensive characterization of nanomaterials for medical applications is a challenging and complex task due to the multitude of parameters which need to be taken into consideration in a broad range of conditions. Routine methods such as dynamic light scattering or nanoparticle tracking analysis provide some insight into the physicochemical properties of particle dispersions. For nanomedicine applications the information they supply can be of limited use. For this reason, there is a need for new methodologies and instruments that can provide additional data on nanoparticle properties such as their interactions with surfaces. Nanophotonic force microscopy has been shown as a viable method for measuring the force between surfaces and individual particles in the nano-size range. Here we outline a further application of this technique to measure the size of single particles and based on these measurement build the distribution of a sample. We demonstrate its efficacy by comparing the size distribution obtained with nanophotonic force microscopy to established instruments, such as dynamic light scattering and differential centrifugal sedimentation. Our results were in good agreement to those observed with all other instruments. Furthermore, we demonstrate that the methodology developed in this work can be used to study complex particle mixtures and the surface alteration of materials. For all cases studied, we were able to obtain both the size and the interaction potential of the particles with a surface in a single measurement.
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Affiliation(s)
- Delyan R Hristov
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
| | - Dong Ye
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
| | - Joao Medeiros de Araújo
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland. and Departamento de Física, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
| | | | | | - Robert Hart
- Optofluidics, Inc., Philadelphia, PA 19104, USA
| | | | - Hender Lopez
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
| | - Kenneth A Dawson
- Center for BioNano Interaction, School of Chemistry, University College Dublin, Belfield, Dublin, Ireland.
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Conteduca D, Dell'Olio F, Krauss TF, Ciminelli C. Photonic and Plasmonic Nanotweezing of Nano- and Microscale Particles. APPLIED SPECTROSCOPY 2017; 71:367-390. [PMID: 28287314 DOI: 10.1177/0003702816684839] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The ability to manipulate and sense biological molecules is important in many life science domains, such as single-molecule biophysics, the development of new drugs and cancer detection. Although the manipulation of biological matter at the nanoscale continues to be a challenge, several types of nanotweezers based on different technologies have recently been demonstrated to address this challenge. In particular, photonic and plasmonic nanotweezers are attracting a strong research effort especially because they are efficient and stable, they offer fast response time, and avoid any direct physical contact with the target object to be trapped, thus preventing its disruption or damage. In this paper, we critically review photonic and plasmonic resonant technologies for biomolecule trapping, manipulation, and sensing at the nanoscale, with a special emphasis on hybrid photonic/plasmonic nanodevices allowing a very strong light-matter interaction. The state-of-the-art of competing technologies, e.g., electronic, magnetic, acoustic and carbon nanotube-based nanotweezers, and a description of their applications are also included.
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48
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Mao Z, Li P, Wu M, Bachman H, Mesyngier N, Guo X, Liu S, Costanzo F, Huang TJ. Enriching Nanoparticles via Acoustofluidics. ACS NANO 2017; 11:603-612. [PMID: 28068078 PMCID: PMC5536981 DOI: 10.1021/acsnano.6b06784] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Focusing and enriching submicrometer and nanometer scale objects is of great importance for many applications in biology, chemistry, engineering, and medicine. Here, we present an acoustofluidic chip that can generate single vortex acoustic streaming inside a glass capillary through using low-power acoustic waves (only 5 V is required). The single vortex acoustic streaming that is generated, in conjunction with the acoustic radiation force, is able to enrich submicrometer- and nanometer-sized particles in a small volume. Numerical simulations were used to elucidate the mechanism of the single vortex formation and were verified experimentally, demonstrating the focusing of silica and polystyrene particles ranging in diameter from 80 to 500 nm. Moreover, the acoustofluidic chip was used to conduct an immunoassay in which nanoparticles that captured fluorescently labeled biomarkers were concentrated to enhance the emitted signal. With its advantages in simplicity, functionality, and power consumption, the acoustofluidic chip we present here is promising for many point-of-care applications.
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Affiliation(s)
- Zhangming Mao
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Peng Li
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Mengxi Wu
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Mechanical Engineering and Material Science, Duke University, Durham, North Carolina 27708, United States
| | - Hunter Bachman
- Department of Mechanical Engineering and Material Science, Duke University, Durham, North Carolina 27708, United States
| | - Nicolas Mesyngier
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Xiasheng Guo
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Sheng Liu
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
| | - Francesco Costanzo
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Tony Jun Huang
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Mechanical Engineering and Material Science, Duke University, Durham, North Carolina 27708, United States
- Corresponding Author:
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Zhang B, Bian Y, Ren L, Guo F, Tang SY, Mao Z, Liu X, Sun J, Gong J, Guo X, Huang TJ. Hybrid Dielectric-loaded Nanoridge Plasmonic Waveguide for Low-Loss Light Transmission at the Subwavelength Scale. Sci Rep 2017; 7:40479. [PMID: 28091583 PMCID: PMC5238436 DOI: 10.1038/srep40479] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/06/2016] [Indexed: 11/08/2022] Open
Abstract
The emerging development of the hybrid plasmonic waveguide has recently received significant attention owing to its remarkable capability of enabling subwavelength field confinement and great transmission distance. Here we report a guiding approach that integrates hybrid plasmon polariton with dielectric-loaded plasmonic waveguiding. By introducing a deep-subwavelength dielectric ridge between a dielectric slab and a metallic substrate, a hybrid dielectric-loaded nanoridge plasmonic waveguide is formed. The waveguide features lower propagation loss than its conventional hybrid waveguiding counterpart, while maintaining strong optical confinement at telecommunication wavelengths. Through systematic structural parameter tuning, we realize an efficient balance between confinement and attenuation of the fundamental hybrid mode, and we demonstrate the tolerance of its properties despite fabrication imperfections. Furthermore, we show that the waveguide concept can be extended to other metal/dielectric composites as well, including metal-insulator-metal and insulator-metal-insulator configurations. Our hybrid dielectric-loaded nanoridge plasmonic platform may serve as a fundamental building block for various functional photonic components and be used in applications such as sensing, nanofocusing, and nanolasing.
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Affiliation(s)
- Bin Zhang
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Fluid Machinery and Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Yusheng Bian
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Liqiang Ren
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Feng Guo
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Shi-Yang Tang
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Zhangming Mao
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xiaomin Liu
- Department of Fluid Machinery and Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jinju Sun
- Department of Fluid Machinery and Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jianying Gong
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Xiasheng Guo
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Nanjing University, Nanjing 210093, P.R. China
| | - Tony Jun Huang
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
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50
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Zhang XY, Zhou HL, Shan F, Xue XM, Su D, Liu YR, Chen YZ, Wu JY, Zhang T. Synthesis of silver nanoplate based two-dimension plasmonic platform from 25 nm to 40 μm: growth mechanism and optical characteristic investigation in situ. RSC Adv 2017. [DOI: 10.1039/c7ra10952k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We show high-purity synthesis, structural engineering and in situ optical investigation of a 2D plasmonic platform using huge silver nanoplates.
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Affiliation(s)
- Xiao-Yang Zhang
- Joint International Research Laboratory of Information Display and Visualization
- School of Electronic Science and Engineering
- Southeast University
- Nanjing
- People’s Republic of China
| | - Huan-Li Zhou
- Joint International Research Laboratory of Information Display and Visualization
- School of Electronic Science and Engineering
- Southeast University
- Nanjing
- People’s Republic of China
| | - Feng Shan
- Joint International Research Laboratory of Information Display and Visualization
- School of Electronic Science and Engineering
- Southeast University
- Nanjing
- People’s Republic of China
| | - Xiao-Mei Xue
- Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology
- Ministry of Education
- School of Instrument Science and Engineering
- Southeast University
- Nanjing
| | - Dan Su
- Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology
- Ministry of Education
- School of Instrument Science and Engineering
- Southeast University
- Nanjing
| | - Yi-Ran Liu
- Joint International Research Laboratory of Information Display and Visualization
- School of Electronic Science and Engineering
- Southeast University
- Nanjing
- People’s Republic of China
| | - Yu-Zhang Chen
- Joint International Research Laboratory of Information Display and Visualization
- School of Electronic Science and Engineering
- Southeast University
- Nanjing
- People’s Republic of China
| | - Jing-Yuan Wu
- Joint International Research Laboratory of Information Display and Visualization
- School of Electronic Science and Engineering
- Southeast University
- Nanjing
- People’s Republic of China
| | - Tong Zhang
- Joint International Research Laboratory of Information Display and Visualization
- School of Electronic Science and Engineering
- Southeast University
- Nanjing
- People’s Republic of China
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