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Zhang BY, Yin P, Hu Y, Szydzik C, Khan MW, Xu K, Thurgood P, Mahmood N, Dekiwadia C, Afrin S, Yang Y, Ma Q, McConville CF, Khoshmanesh K, Mitchell A, Hu B, Baratchi S, Ou JZ. Highly accurate and label-free discrimination of single cancer cell using a plasmonic oxide-based nanoprobe. Biosens Bioelectron 2022; 198:113814. [PMID: 34823964 DOI: 10.1016/j.bios.2021.113814] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/01/2021] [Accepted: 11/14/2021] [Indexed: 12/24/2022]
Abstract
The detection of cancer cells at the single-cell level enables many novel functionalities such as next-generation cancer prognosis and accurate cellular analysis. While surface-enhanced Raman spectroscopy (SERS) has been widely considered as an effective tool in a low-cost and label-free manner, however, it is challenging to discriminate single cancer cells with an accuracy above 90% mainly due to the poor biocompatibility of the noble-metal-based SERS agents. Here, we report a dual-functional nanoprobe based on dopant-driven plasmonic oxides, demonstrating a maximum accuracy above 90% in distinguishing single THP-1 cell from peripheral blood mononuclear cell (PBMC) and human embryonic kidney (HEK) 293 from human macrophage cell line U937 based on their SERS patterns. Furthermore, this nanoprobe can be triggered by the bio-redox response from individual cells towards stimuli, empowering another complementary colorimetric cell detection, approximately achieving the unity discrimination accuracy at a single-cell level. Our strategy could potentially enable the future accurate and low-cost detection of cancer cells from mixed cell samples.
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Affiliation(s)
- Bao Yue Zhang
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
| | - Pengju Yin
- School of Mathematics and Physics, Hebei University of Engineering, Handan, 056038, China; School of Life Science and Technology, Xidian University, Xi'an, 710126, China
| | - Yihong Hu
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Crispin Szydzik
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia; The Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, 3004, Australia
| | - Muhammad Waqas Khan
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia; Manufacturing, CSIRO, Clayton, Victoria, 3168, Australia
| | - Kai Xu
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Peter Thurgood
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Nasir Mahmood
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Chaitali Dekiwadia
- RMIT Microscopy and Microanalysis Facility (RMMF), RMIT University, Melbourne, 3001, Australia
| | - Sanjida Afrin
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Yunyi Yang
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, 3122 Australia
| | - Qijie Ma
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Chris F McConville
- Institute for Frontier Materials (IFM), Deakin University, Waurn Ponds, VIC, 3216, Australia
| | | | - Arnan Mitchell
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Bo Hu
- School of Life Science and Technology, Xidian University, Xi'an, 710126, China
| | - Sara Baratchi
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083 Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.
| | - Jian Zhen Ou
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
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Khonina SN, Krasnov SV, Ustinov AV, Degtyarev SA, Porfirev AP, Kuchmizhak A, Kudryashov SI. Refractive twisted microaxicons. OPTICS LETTERS 2020; 45:1334-1337. [PMID: 32163959 DOI: 10.1364/ol.386223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/04/2020] [Indexed: 06/10/2023]
Abstract
Complex-shaped light fields with specially designed intensity, phase, and polarization distributions are highly demanded for various applications including optical tweezers, laser material processing, and lithography. Here, we propose a novel (to the best of our knowledge) optical element formed by the twisting of a conic surface, a twisted microaxicon, allowing us to controllably generate high-quality spiral-shaped intensity patterns. Performance of the proposed element was analyzed both analytically and numerically using ray approximation and the rigorous finite difference time domain (FDTD) solution of Maxwell's equation. The main geometric parameters, an apex cone angle and a degree of twisting, were considered to control and optimize the generated spiral-shaped intensity patterns. The three-dimensional structure of such a microaxicon cannot be described by an unambiguous height function; therefore, it has no diffraction analogue in the form of a thin optical element. Such an element can be produced via direct laser ablation of transparent targets with structured laser beams or direct laser writing via two-photon photopolymerization and can be used in various micro- and nano-optical applications.
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