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Yang F, Dong B, Nie K, Shi H, Wu Y, Wang H, Liu Z. Light-Directed Synthesis of High-Density Peptide Nucleic Acid Microarrays. ACS COMBINATORIAL SCIENCE 2015; 17:608-14. [PMID: 26339951 DOI: 10.1021/acscombsci.5b00074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Peptide nucleic acids (PNAs) are a class of nucleic acid mimics that can bind to the complementary DNA or RNA with high specificity and sensitivity. PNA-based microarrays have distinct characteristics and have improved performance in many aspects compared to DNA microarrays. A new set of PNA monomers has been synthesized and used as the building blocks for the preparation of high density PNA microarrays. These monomers have their backbones protected by the photolabile group 2-(2-nitrophenyl)propyloxy carbonyl (NPPOC), and their exocyclic amino groups protected by amide carbonyl groups. A light-directed synthesis system was designed and applied to the in situ synthesis of a PNA microarray with a density of over 10,000 probes per square centimeter. This PNA microarray was able to detect single and multiple base-mismatches correctly with a high discrimination ratio.
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Affiliation(s)
- Feipeng Yang
- Department
of Biomedical
Engineering, School of Geosciences and Info-Physics, Central South University, Changsha, 410083, China
| | - Bo Dong
- Department
of Biomedical
Engineering, School of Geosciences and Info-Physics, Central South University, Changsha, 410083, China
| | - Kaixuan Nie
- Department
of Biomedical
Engineering, School of Geosciences and Info-Physics, Central South University, Changsha, 410083, China
| | - Huanhuan Shi
- Department
of Biomedical
Engineering, School of Geosciences and Info-Physics, Central South University, Changsha, 410083, China
| | - Yanqi Wu
- Department
of Biomedical
Engineering, School of Geosciences and Info-Physics, Central South University, Changsha, 410083, China
| | - Hongyin Wang
- Department
of Biomedical
Engineering, School of Geosciences and Info-Physics, Central South University, Changsha, 410083, China
| | - Zhengchun Liu
- Department
of Biomedical
Engineering, School of Geosciences and Info-Physics, Central South University, Changsha, 410083, China
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