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説明:

Nanomechanical sensors have gained significant attention as powerful tools for detecting target analytes; however, their signals are often influenced by environmental humidity. In static mode operation, the sensing signals of nanomechanical sensors are obtained by a concentration-dependent sorption-induced mechanical strain/stress. In this study, we derive an analytical model to describe the response of viscoelastic material-coated nanomechanical sensors by incorporating humidity effects based on sorption kinetics and viscoelastic stress relaxation of receptor materials. This model is capable of reproducing the dynamic responses observed in the experiments under varying humidity conditions. Moreover, it allows for the subtraction of humidity effects, facilitating the precise isolation of analyte-specific signals. These results provide a theoretical framework for decoupling environmental background factors, such as humidity effects, in nanomechanical sensors.

権利情報:

• In Copyright
  ©2025 American Physical Society

キーワード: nanomechanical sensors, sorption kinetics, viscoelastic stress relaxation, humidity

刊行年月日: 2025-06-09

出版者: American Physical Society (APS)

掲載誌:

• Physical Review E (ISSN: 24700045) vol. 111 issue. 6 065407

研究助成金:

• Japan Society for the Promotion of Science 18H04168
• Japan Society for the Promotion of Science 22K05324
• Japan Society for the Promotion of Science 20K20554
• Japan Society for the Promotion of Science JPMJSP2124
• Japan Science and Technology Corporation
• Ministry of Education, Culture, Sports, Science and Technology

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5907

公開URL: https://doi.org/10.1103/physreve.111.065407

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更新時刻: 2025-11-13 16:30:30 +0900

MDRでの公開時刻: 2025-11-13 16:24:25 +0900