
1.State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
2.Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong, China
3.Department of Bioengineering and COMSET, Clemson University, Clemson, SC 29634, USA
4.School of Biomedical Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
Jiajie Chen (cjj@szu.edu.cn)
Ho-Pui Ho (aaron.ho@cuhk.edu.hk)
Han Zhang (hzhang@szu.edu.cn)
Yonghong Shao (shaoyh@szu.edu.cn)
Published:31 December 2023,
Published Online:16 November 2023,
Received:26 June 2023,
Revised:26 October 2023,
Accepted:03 November 2023
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Chen, J. J. et al. CRISPR-powered optothermal nanotweezers: Diverse bio-nanoparticle manipulation and single nucleotide identification. Light: Science & Applications, 12, 2644-2654 (2023).
Chen, J. J. et al. CRISPR-powered optothermal nanotweezers: Diverse bio-nanoparticle manipulation and single nucleotide identification. Light: Science & Applications, 12, 2644-2654 (2023). DOI: 10.1038/s41377-023-01326-9.
Optothermal nanotweezers have emerged as an innovative optical manipulation technique in the past decade
which revolutionized classical optical manipulation by efficiently capturing a broader range of nanoparticles. However
the optothermal temperature field was merely employed for in-situ manipulation of nanoparticles
its potential for identifying bio-nanoparticles remains largely untapped. Hence
based on the synergistic effect of optothermal manipulation and CRIPSR-based bio-detection
we developed CRISPR-powered optothermal nanotweezers (CRONT). Specifically
by harnessing diffusiophoresis and thermo-osmotic flows near the substrate upon optothermal excitation
we successfully trapped and enriched DNA functionalized gold nanoparticles
CRISPR-associated proteins
as well as DNA strands. Remarkably
we built an optothermal scheme for enhancing CRISPR-based single-nucleotide polymorphism (SNP) detection at single molecule level
while also introducing a novel CRISPR methodology for observing nucleotide cleavage. Therefore
this innovative approach has endowed optical tweezers with DNA identification ability in aqueous solution which was unattainable before. With its high specificity and feasibility for in-situ bio-nanoparticle manipulation and identification
CRONT will become a universal tool in point-of-care diagnosis
biophotonics
and bio-nanotechnology.
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