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Zhu Y, You M, Shi Y, Huang H, Wei Z, He T, Xiong S, Wang Z, Cheng X. Optofluidic Tweezers: Efficient and Versatile Micro/Nano-Manipulation Tools. MICROMACHINES 2023; 14:1326. [PMID: 37512637 PMCID: PMC10384111 DOI: 10.3390/mi14071326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023]
Abstract
Optical tweezers (OTs) can transfer light momentum to particles, achieving the precise manipulation of particles through optical forces. Due to the properties of non-contact and precise control, OTs have provided a gateway for exploring the mysteries behind nonlinear optics, soft-condensed-matter physics, molecular biology, and analytical chemistry. In recent years, OTs have been combined with microfluidic chips to overcome their limitations in, for instance, speed and efficiency, creating a technology known as "optofluidic tweezers." This paper describes static OTs briefly first. Next, we overview recent developments in optofluidic tweezers, summarizing advancements in capture, manipulation, sorting, and measurement based on different technologies. The focus is on various kinds of optofluidic tweezers, such as holographic optical tweezers, photonic-crystal optical tweezers, and waveguide optical tweezers. Moreover, there is a continuing trend of combining optofluidic tweezers with other techniques to achieve greater functionality, such as antigen-antibody interactions and Raman tweezers. We conclude by summarizing the main challenges and future directions in this research field.
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Affiliation(s)
- Yuchen Zhu
- 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
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Frontiers Science Center of Digital Optics, Shanghai 200092, China
| | - Minmin You
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai 200240, 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
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Frontiers Science Center of Digital Optics, Shanghai 200092, China
| | - Haiyang Huang
- 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
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Frontiers Science Center of Digital Optics, Shanghai 200092, China
| | - Zeyong Wei
- 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
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Frontiers Science Center of Digital Optics, Shanghai 200092, China
| | - Tao He
- 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
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Frontiers Science Center of Digital Optics, Shanghai 200092, China
| | - Sha Xiong
- School of Automation, Central South University, Changsha 410083, China
| | - Zhanshan Wang
- 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
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Frontiers Science Center of Digital Optics, Shanghai 200092, China
| | - Xinbin Cheng
- 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
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Frontiers Science Center of Digital Optics, Shanghai 200092, China
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Lin Y, Jiang Y, Liu R, Chen J, Lu L, Zhu W, Zhang ST, Li D. Multi-scale optical simulation of crystalline silicon solar cells by combining ray and wave optics. APPLIED OPTICS 2023; 62:4236-4244. [PMID: 37706911 DOI: 10.1364/ao.488752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/08/2023] [Indexed: 09/15/2023]
Abstract
Optical simulations allow the evaluation of the absorption, reflection, and transmission of each functional layer of solar cells and, therefore, are of great importance for the design of high-efficiency crystalline silicon (c-Si) solar cells. Here, a multi-scale simulation method (MSM) based on ray and wave optics is proposed to investigate the optical characteristics of c-Si solar cells. The ray and wave optical methods are first independently employed on inverted pyramid glass sheets, where the latter one can describe the size-dependent interfacial scattering characteristics more accurately. Then the optical properties of a c-Si solar cell with a tunnel oxide passivated carrier-selective contact configuration are studied by employing the MSM, where scattering at the interfaces is acquired by a finite-difference time-domain method (wave optics). Since the MSM can accurately simulate optical modes such as the Rayleigh anomaly, Bloch mode, and Mie resonances, the reflection and transmission spectra of the whole device are in good agreement with the measured data. The proposed MSM has proven to be accurate for structures with functional thin films, which can be extended to hybrid tandem devices with top-level cells consisting of stacks of layers with similar dimensions.
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Bronte Ciriza D, Magazzù A, Callegari A, Barbosa G, Neves AAR, Iatì MA, Volpe G, Maragò OM. Faster and More Accurate Geometrical-Optics Optical Force Calculation Using Neural Networks. ACS PHOTONICS 2023; 10:234-241. [PMID: 36691426 PMCID: PMC9853855 DOI: 10.1021/acsphotonics.2c01565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Indexed: 06/17/2023]
Abstract
Optical forces are often calculated by discretizing the trapping light beam into a set of rays and using geometrical optics to compute the exchange of momentum. However, the number of rays sets a trade-off between calculation speed and accuracy. Here, we show that using neural networks permits overcoming this limitation, obtaining not only faster but also more accurate simulations. We demonstrate this using an optically trapped spherical particle for which we obtain an analytical solution to use as ground truth. Then, we take advantage of the acceleration provided by neural networks to study the dynamics of ellipsoidal particles in a double trap, which would be computationally impossible otherwise.
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Affiliation(s)
| | | | - Agnese Callegari
- Department
of Physics, University of Gothenburg, SE-41296Gothenburg, Sweden
| | - Gunther Barbosa
- Universidade
Federal do ABC, Av. dos Estados 5001, CEP 09210-580, Santo André, SP, Brazil
| | - Antonio A. R. Neves
- Universidade
Federal do ABC, Av. dos Estados 5001, CEP 09210-580, Santo André, SP, Brazil
| | | | - Giovanni Volpe
- Department
of Physics, University of Gothenburg, SE-41296Gothenburg, Sweden
| | - Onofrio M. Maragò
- CNR-IPCF, Istituto per i Processi Chimico-Fisici, I-98158Messina, Italy
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Konyshev I, Byvalov A. Model systems for optical trapping: the physical basis and biological applications. Biophys Rev 2021; 13:515-529. [PMID: 34471436 DOI: 10.1007/s12551-021-00823-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 07/05/2021] [Indexed: 11/30/2022] Open
Abstract
The micromechanical methods, among which optical trapping and atomic force microscopy have a special place, are widespread currently in biology to study molecular interactions between different biological objects. Optical trapping is reported to be quite applicable to study the mechanical properties of surface structures onto bacterial (pili and flagella) and eukaryotic (filopodia) cells. The review briefly summarizes the physical basis of optical trapping, as well as the principles of calculating the van der Waals, electrostatic, and donor-acceptor forces when two microparticles or a microparticle and a flat surface are used. Three main types of model systems (abiotic, biotic, and mixed) used in trapping experiments are described, and the peculiarities of manipulation with living (bacteria, fungal spores, etc.) and non-spherical objects (e.g., rod-shaped bacteria) are summarized.
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Affiliation(s)
- Ilya Konyshev
- Institute of Physiology of Коmi Science Centre of the Ural Branch of the Russian Academy of Sciences, FRC Komi SC UB RAS, Komi Republic, 167982 Syktyvkar, Russian Federation.,Vyatka State University, 36 Moskovskaya str, 610000 Kirov, Russian Federation
| | - Andrey Byvalov
- Institute of Physiology of Коmi Science Centre of the Ural Branch of the Russian Academy of Sciences, FRC Komi SC UB RAS, Komi Republic, 167982 Syktyvkar, Russian Federation.,Vyatka State University, 36 Moskovskaya str, 610000 Kirov, Russian Federation
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5
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Shao M, Zhang S, Zhou J, Ren YX. Calculation of optical forces for arbitrary light beams using the Fourier ray method. OPTICS EXPRESS 2019; 27:27459-27476. [PMID: 31684512 DOI: 10.1364/oe.27.027459] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
The ray-optics (RO) model is a reasonable method to calculate optical force in geometrical optics regime. However, the RO model fails to calculate the optical force produced by diffractive optical field and other arbitrary structured light beams. We propose the Fourier ray (FR) method to calculate the optical force for arbitrary incident beams. Combining the Fourier optics and the geometrical optics, the FRs are defined as rays that inlay on the plane waves weighted by the Fourier angular spectrum of the incident beam. According to traditional RO model and FR method, we can analyze optical forces on a microsphere immersed in various beams. To validate the FR method, forces of the fundamental Gaussian beam and Airy beam are respectively calculated and compared with traditional method. In addition, optical forces in three arbitrary structured light beams are demonstrated as well. Our simulations show that the FR method is able to evaluate the optical forces generated by diffractive optical field and complex structured light beams, and give a solid prediction of their trapping performances. In RO regime, the Fourier ray method is a universal method to predict the interaction between bead and complex optical field.
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Liu J, Li Z. Controlled Mechanical Motions of Microparticles in Optical Tweezers. MICROMACHINES 2018; 9:E232. [PMID: 30424165 PMCID: PMC6187602 DOI: 10.3390/mi9050232] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/05/2018] [Accepted: 05/09/2018] [Indexed: 12/11/2022]
Abstract
Optical tweezers, formed by a highly focused laser beam, have intriguing applications in biology and physics. Inspired by molecular rotors, numerous optical beams and artificial particles have been proposed to build optical tweezers trapping microparticles, and extensive experiences have been learned towards constructing precise, stable, flexible and controllable micromachines. The mechanism of interaction between particles and localized light fields is quite different for different types of particles, such as metal particles, dielectric particles and Janus particles. In this article, we present a comprehensive overview of the latest development on the fundamental and application of optical trapping. The emphasis is placed on controllable mechanical motions of particles, including rotation, translation and their mutual coupling under the optical forces and torques created by a wide variety of optical tweezers operating on different particles. Finally, we conclude by proposing promising directions for future research.
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Affiliation(s)
- Jing Liu
- Institute of Laser and Intelligent Manufacturing Technology, South-Central University for Nationalities, Wuhan 430074, China.
| | - Zhiyuan Li
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China.
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7
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Lin M, Xu B, Yao H, Shen A, Hu J. An in vivo quantitative Raman-pH sensor of arterial blood based on laser trapping of erythrocytes. Analyst 2016; 141:3027-32. [DOI: 10.1039/c5an02315g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A continuous and noninvasive approach is appliedin vivoto measure the arterial blood pH quantitatively.
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Affiliation(s)
- Manman Lin
- School of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Bin Xu
- Laboratory of Biophysics
- Guangxi Academy of Sciences
- Nanning 530003
- China
| | - Huilu Yao
- Laboratory of Biophysics
- Guangxi Academy of Sciences
- Nanning 530003
- China
| | - Aiguo Shen
- School of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Jiming Hu
- School of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
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8
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Zabetian M, Saidi MS, Shafii MB, Saidi MH. Separation of microparticles suspended in a minichannel using laser radiation pressure. APPLIED OPTICS 2013; 52:4950-8. [PMID: 23852211 DOI: 10.1364/ao.52.004950] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 05/30/2013] [Indexed: 05/20/2023]
Abstract
Optical separation, which is a contactless and accurate technique, has been mostly used to manipulate single particles. This work mainly aims to present an effective technique for optical propulsion and separation of a group of microscopic particles that are suspended in liquids. An experimental study is conducted to assess the effect of radiation pressure of a high-power laser on a dilute dispersion of microparticles in water using microscopic image analysis. Results of separation experiments indicate that the manipulation mechanism is capable of sorting the microscopic particles in two size classes. Compared to common optical separators, this configuration has a benefit of separating many particles simultaneously.
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Affiliation(s)
- Mohammad Zabetian
- Center of Excellence in Energy Conversion, School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
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Hajihashemi MR, Li X, Jiang H. Morphological characterization of cells in concentrated suspensions using multispectral diffuse optical tomography. OPTICS COMMUNICATIONS 2012; 285:4632-4637. [PMID: 23372258 PMCID: PMC3556526 DOI: 10.1016/j.optcom.2012.07.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Based on a non-spherical model of particle scattering, we investigate the capabilities and limitations of a T-matrix based inverse algorithm to morphologically characterize cells in concentrated suspensions. Here the cells are modeled as randomly orientated spheroidal particles with homogenous dielectric properties and suspended in turbid media. The inverse algorithm retrieves the geometrical parameters and the concentration of cells simultaneously by inverting the reduced scattering coefficient spectra obtained from multispectral diffuse optical tomography (MS-DOT). Both round and spheroidal cells are tested and the role of multiple and higher order scattering of particles on the performance of the algorithm is evaluated using different concentrations of cells.
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Lee KH, Kim SB, Yoon SY, Lee KS, Jung JH, Sung HJ. Behavior of double emulsions in a cross-type optical separation system. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7343-7349. [PMID: 22519837 DOI: 10.1021/la300693q] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The behavior of double emulsions in a cross-type optical particle separation system was studied for different combinations of refractive indices and different inner and outer layer radii. The radii and refractive indices of the double emulsions were easily adjusted by taking advantage of the coflowing geometry of a cross-type optical particle separation device. An analytical expression of the optical forces on a pair of concentric spheres was derived using the photon stream method in the ray optics regime. The predicted trajectories of the double emulsions by the optical force agreed well with the experimental data. This work has potential uses in cell separation by morphometry, drug delivery vehicle, and emulsion-based biomedical applications.
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Affiliation(s)
- Kyung Heon Lee
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea
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11
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Perney NMB, Horak P, Hanley NA, Melvin T. The self-orientation of mammalian cells in optical tweezers--the importance of the nucleus. Phys Biol 2012; 9:024001. [PMID: 22473086 DOI: 10.1088/1478-3975/9/2/024001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Here we present the first evidence showing that eukaryotic cells can be stably trapped in a single focused Gaussian beam with an orientation that is defined by the nucleus. A mammalian eukaryotic cell (in suspension) is trapped and is re-oriented in the focus of a linearly polarized Gaussian beam with a waist of dimension smaller than the radius of the nucleus. The cell reaches a position relative to the focus that is dictated by the nucleus and nuclear components. Our studies illustrate that the force exerted by the optical tweezers at locations within the cell can be predicted theoretically; the data obtained in this way is consistent with the experimental observations.
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Affiliation(s)
- Nicolas M B Perney
- Optoelectronics Research Centre, University of Southampton, Highfield, SO17 1BJ, UK
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12
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Ashok PC, Marchington RF, Mthunzi P, Krauss TF, Dholakia K. Optical chromatography using a photonic crystal fiber with on-chip fluorescence excitation. OPTICS EXPRESS 2010; 18:6396-407. [PMID: 20389663 DOI: 10.1364/oe.18.006396] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We describe the realization of integrated optical chromatography, in conjunction with on-chip fluorescence excitation, in a monolithically fabricated poly-dimethylsiloxane (PDMS) microfluidic chip. The unique endlessly-single-mode guiding property of the Photonic Crystal Fiber (PCF) facilitates simultaneous on-chip delivery of beams to perform optical sorting in conjunction with fluorescence excitation. We use soft lithography to define the chip and insert the specially capped PCF into it through a predefined fiber channel that is intrinsically aligned with the sorting channel. We compare the performance of the system to a standard ray optics model and use the system to demonstrate both size-driven and refractive index-driven separations of colloids. Finally we demonstrate a new technique of enhanced optofluidic separation of biological particles, by sorting of human kidney embryonic cells (HEK-293), internally tagged with fluorescing microspheres through phagocytocis, from those without microspheres and the separation purity is monitored using fluorescence imaging.
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Affiliation(s)
- P C Ashok
- SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife, KY16 9SS, Scotland, UK.
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Rodriguez-Otazo M, Augier-Calderin A, Galaup JP, Lamère JF, Fery-Forgues S. High rotation speed of single molecular microcrystals in an optical trap with elliptically polarized light. APPLIED OPTICS 2009; 48:2720-2730. [PMID: 19424395 DOI: 10.1364/ao.48.002720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We build an experiment of optical tweezers based on the use of an inverted optical microscope for manipulating microsized single crystals, which are made of an organic dye and parallelepiped in shape. The microcrystals are directed so that their long axis is in the axial direction of the trapping beam. Their short axis follows the direction of the linear polarization of the beam. In circular or elliptic polarization, the crystals are spontaneously put in rotation with a high speed of up to 500 turns per second. It is the first time, to the best of our knowledge, that such a result is reported for particles of the size of our crystals. Another surprising result is that the rotation speed was first increased as expected by increasing the incident power, but after passing by a maximum it decreased until the complete stop of rotation, whereas the power continued growing. This evolution was not reversible. Several hypotheses are discussed to explain such behavior.
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Terray A, Ladouceur HD, Hammond M, Hart SJ. Numerical simulation of an optical chromatographic separator. OPTICS EXPRESS 2009; 17:2024-32. [PMID: 19189033 DOI: 10.1364/oe.17.002024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Optical chromatography achieves microscale optical manipulation through the balance of optical and hydrodynamic forces on micron sized particles entrained in microfluidic flow traveling counter to the propagation of a mildly focused laser beam. The optical pressure force on a particle is specific to each particle's size, shape and refractive index. So far, these properties have been exploited in our lab to concentrate, purify and separate injected samples. But as this method advances into more complex optofluidic systems, a need to better predict behavior is necessary. Here, we present the development and experimental verification of a robust technique to simulate particle trajectories in our optical chromatographic device. We also show how this new tool can be used to gather better qualitative and quantitative understanding in a two component particle separation.
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Affiliation(s)
- Alex Terray
- Naval Research Laboratory, Chemistry Division, Bio/Analytical Chemistry, Washington, DC 20375, USA
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15
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Zhou JH, Ren HL, Cai J, Li YM. Ray-tracing methodology: application of spatial analytic geometry in the ray-optic model of optical tweezers. APPLIED OPTICS 2008; 47:6307-6314. [PMID: 19023398 DOI: 10.1364/ao.47.006307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Traditional solid geometry ray-tracing method is complex in analyzing the orientation of gradient forces and calculating incident angle of optic rays upon a microsphere. We present a new ray-tracing methodology based on spatial analytic geometry in the ray-optic model. For a single ray upon a microsphere, the directions of transmission and trapping forces are depicted by spatial vectors in a Cartesian coordinate system. At the same time, the polarized direction of a single focused ray can be transformed by a matrix of rotational coordinates. According to the relations of vectors, the trapping forces can be expressed identically. We use this new method to discuss differences of trapping forces in the cases of various states of unpolarized and polarized beams, and also show the reasons for differences in transverse force between measurement and theoretical results. Our simulative results show that this method can be applied identically to calculating both transverse and axial trapping forces, and also for different polarizations of a laser beam.
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Affiliation(s)
- Jin-Hua Zhou
- Department of Astronomy and Applied Physics, University of Science and Technology of China, Hefei, Anhui, China
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16
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Zhang Y, Li Y, Qi J, Cui G, Liu H, Chen J, Zhao L, Xu J, Sun Q. Influence of absorption on optical trapping force of spherical particles in a focused Gaussian beam. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1464-4258/10/8/085001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Banerjee HN, Verma M. Use of nanotechnology for the development of novel cancer biomarkers. Expert Rev Mol Diagn 2006; 6:679-83. [PMID: 17009903 DOI: 10.1586/14737159.6.5.679] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Novel nanotechnologies can complement and augment existing genomic and proteomic techniques employed to analyze variations across different tumor types, thus offering the potential to distinguish between normal and malignant cells. Sensitive biosensors constructed out of nanoscale components (e.g., nanocantilevers, nanowires and nanochannels) can recognize genetic and molecular events and have reporting capabilities, thereby offering the potential to detect rare molecular signals associated with malignancy. Such signals may then be collected for analysis by nanoscale harvesters that selectively isolate cancer-related molecules from tissues. Another area with near-term potential for the early detection of cancer is the identification of mutations and genomic instability.
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Affiliation(s)
- Hirendra Nath Banerjee
- University of North Carolina, Department of Biological Sciences and Pharmaceutical Sciences, Division of Mathematics, Sciences, Technology and Pharmaceutical Sciences, Elizabeth City, NC 27909, USA.
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