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Wang J, Lv M, Xia H, Du J, Zhao Y, Li H, Zhang Z. Minimalist Design for a Hand-Held SARS-Cov-2 Sensor: Peptide-Induced Covalent Assembly of Hydrogel Enabling Facile Fiber-Optic Detection of a Virus Marker Protein. ACS Sens 2021; 6:2465-2471. [PMID: 34106686 DOI: 10.1021/acssensors.1c00869] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The rampaging COVID-19 needs bioassaying methods of low cost and high robustness for those living in the poorly developed regions. Here, we propose such a method that does not need expensive and complicated equipment. Only a set of hand-held small devices is sufficient. A section along an optic fiber cable is stripped, so that laser light travelling through it will leak outside, while biosensing process taken place on this stripped section can form a new cladding layer of hydrogel, restoring the laser output of the fiber. A short peptide probe immobilized on the stripped section of the fiber can covalently capture a biomarker protein of SARS-Cov-2 from the serum sample. Through the cross-linking of the target protein with the interfering proteins in the serum sample, a hydrogel is covalently immobilized around the stripped section, highly resistant to detergent rinsing that is indispensable for removing nonspecific interference from the clinical sample. Using this "covalent biosensing" strategy, only one peptide probe is sufficient to simultaneously achieve ultrahigh affinity toward the biomarker protein of SARS-Cov-2 and effective signal amplification.
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Affiliation(s)
- Junxia Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266071, Shandong Province, China
| | - Mengqi Lv
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266071, Shandong Province, China
| | - Hehuan Xia
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, Shandong Province, P. R. China
| | - Jialei Du
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, Shandong Province, P. R. China
| | - Yiwei Zhao
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, Shandong Province, P. R. China
| | - Hao Li
- School of Biological Science and Technology, University of Jinan, Jinan 250022, Shandong Province, P. R. China
| | - Zhongyin Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266071, Shandong Province, China
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Synthesis and spectral properties of new ethylene glycol bridged oxazol-5-ones: High Stokes' shift fluorophores sensitive to solvent polarity. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Jeong CJ, Roy AK, Kim SH, Lee JE, Jeong JH, In I, Park SY. Fluorescent carbon nanoparticles derived from natural materials of mango fruit for bio-imaging probes. NANOSCALE 2014; 6:15196-202. [PMID: 25375199 DOI: 10.1039/c4nr04805a] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Water soluble fluorescent carbon nanoparticles (FCP) obtained from a single natural source, mango fruit, were developed as unique materials for non-toxic bio-imaging with different colors and particle sizes. The prepared FCPs showed blue (FCP-B), green (FCP-G) and yellow (FCP-Y) fluorescence, derived by the controlled carbonization method. The FCPs demonstrated hydrodynamic diameters of 5-15 nm, holding great promise for clinical applications. The biocompatible FCPs demonstrated great potential in biological fields through the results of in vitro imaging and in vivo biodistribution. Using intravenously administered FCPs with different colored particles, we precisely defined the clearance and biodistribution, showing rapid and efficient urinary excretion for safe elimination from the body. These findings therefore suggest the promising possibility of using natural sources for producing fluorescent materials.
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Affiliation(s)
- Chan Jin Jeong
- Department of IT Convergence, Korea National University of Transportation, Chungju 380-702, Republic of Korea
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