期刊
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
卷 96, 期 1, 页码 29-34出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.20220303
关键词
DNA; Thin films; Laser deposition
We have developed nanometer-flat DNA-featured solid thin films using DNA sourced from salmon sperm via laser molecular beam deposition (LMBD) under high-vacuum conditions. The LMBD-DNA thin films exhibited molecular flatness with an average surface roughness of 7.4 nm. Despite the observed fragmentation caused by the cleavage of phosphate bonds, Quartz Crystal Microbalance (QCM) sensors fabricated with LMBD-DNA thin films showed superior methanol detection capability compared to sensors fabricated with spin-coated DNA thin films, suggesting a high potential for sensor applications.
We have developed nanometer-flat deoxyribonucleic acid (DNA)-featured solid thin films using a DNA source extracted from salmon sperm via laser molecular beam deposition (LMBD) under high-vacuum condition. The DNA thin films formed by LMBD had molecular flatness with an average surface roughness of 7.4 nm. Although fragmentation due to the cleavage of the phosphate bonds was observed, quartz crystal microbalance (QCM) sensors fabricated with DNA thin films using LMBD showed higher methanol detection capability than sensors using DNA thin films fabricated by spin coating, indicating that LMBD-DNA thin films have a high potential for sensor applications.
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