Nanoimprinted Plasmonic Crystals for Cost-Effective SERS Identification of Methylated DNAs.
Daiki KawasakiRyosuke NishitsujiTatsuro EndoPublished in: Sensors (Basel, Switzerland) (2024)
The development of a cost-effective and rapid assay technique for the identification of DNA methylation is one of the most crucial issues in the field of biomedical diagnosis because DNA methylation plays key roles in human health. The plasmonic crystal-based surface-enhanced Raman spectroscopy (SERS) technique is promising for the realization of such an assay method owing to its capability of generating uniformly enhanced electric fields to achieve high reproducibility and accuracy in SERS assays. However, the time and technical costs of fabricating plasmonic crystals are high, owing to the need for nanofabrication equipment. In this study, we developed nanoimprinted plasmonic crystals for cost-effective and rapid DNA methylation assays. Our plasmonic crystals identified methylated DNA with the 40-base pair adenomatous polyposis coli (APC) gene sequence, which is correlated with cell growth and cancer cells.
Keyphrases
- raman spectroscopy
- dna methylation
- single molecule
- label free
- genome wide
- high throughput
- human health
- gold nanoparticles
- room temperature
- gene expression
- energy transfer
- sensitive detection
- risk assessment
- copy number
- loop mediated isothermal amplification
- circulating tumor
- bioinformatics analysis
- quantum dots
- single cell
- amino acid