Atmospheric-pressure mass spectrometry by single-mode nanoelectromechanical systems

Kaynak, Batuhan E. and Alkhaled, Mohammed and Kartal, Enise and Yanık, Cenk and Hanay, M. Selim (2023) Atmospheric-pressure mass spectrometry by single-mode nanoelectromechanical systems. Nano Letters, 23 (18). pp. 8553-8559. ISSN 1530-6984 (Print) 1530-6992 (Online)

Full text not available from this repository. (Request a copy)


Weighing particles above the megadalton mass range has been a persistent challenge in commercial mass spectrometry. Recently, nanoelectromechanical systems-based mass spectrometry (NEMS-MS) has shown remarkable performance in this mass range, especially with the advance of performing mass spectrometry under entirely atmospheric conditions. This advance reduces the overall complexity and cost while increasing the limit of detection. However, this technique required the tracking of two mechanical modes and the accurate knowledge of mode shapes that may deviate from their ideal values, especially due to air damping. Here, we used a NEMS architecture with a central platform, which enables the calculation of mass by single-mode measurements. Experiments were conducted using polystyrene and gold nanoparticles to demonstrate the successful acquisition of mass spectra using a single mode with an improved areal capture efficiency. This advance represents a step forward in NEMS-MS, bringing it closer to becoming a practical application for the mass sensing of nanoparticles.
Item Type: Article
Uncontrolled Keywords: atmospheric-pressure mass spectrometry; nanoelectromechanical systems; nanoparticle mass measurement; NEMS mass spectrometry; paddle NEMS; single-mode sensing
Divisions: Sabancı University Nanotechnology Research and Application Center
Depositing User: Cenk Yanık
Date Deposited: 02 Feb 2024 15:41
Last Modified: 02 Feb 2024 15:41

Actions (login required)

View Item
View Item