用于测量细菌菌落质量的激光微机械传感器

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-27 DOI:10.1134/S1062873824709759

T. A. Efimov, A. I. Degtyarenko, R. V. Romashko, Y. N. Shkryl, M. N. Bezruk, I. M. Chernev, K. N. Galkin, D. V. Storozhenko

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引用次数: 0

摘要

我们介绍了一种基于光折变晶体记录的动态全息图的自适应干涉测量技术，通过测量微悬臂频移来精确测定生物膜细菌菌落的质量。在实验测试中，大肠杆菌生物膜在先前涂有BaF2膜的悬臂表面生长。所提出的实验装置是完全非接触的，由于使用光学方法的激励和检测悬臂振荡。根据测量到的谐振频率位移，计算出生长在悬臂上的生物膜的质量为（2.072±0.003）× 10-9 g。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Laser Micromechanical Sensor for Measurement of the Mass of Bacterial Cell Colonies

查看原文本刊更多论文

Laser Micromechanical Sensor for Measurement of the Mass of Bacterial Cell Colonies

We presented results of applying an adaptive interferometry technique, based on dynamic holograms recorded in photorefractive crystal, to accurately determine the mass of biofilm bacteria colonies by the measuring of microcantilever frequency shift. During the experimental testing, biofilms of Escherichia coli were grown on the surface of a cantilever previously coated with a BaF₂ film. The proposed experimental setup is completely non-contact due to using an optical method of excitation and detection of cantilever oscillations. Based on the measured shift in the resonant frequency, the mass of the biofilm grown on the cantilever was calculated to be (2.072 ± 0.003) × 10^–9 gram.

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.