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Real-time heart rate monitoring system for cardiotoxicity assessment of Daphnia magna using high-speed digital holographic microscopy by Ik Hwan Kwon; In Young Kim; Min Beom Heo; June-Woo Park; Sang-Won Lee; Tae Geol Lee is a Environmental Science article available to read on EtoBox.
What is Real-time heart rate monitoring system for cardiotoxicity assessment of Daphnia magna using high-speed digital holographic microscopy about?
Machine vision techniques for monitoring heart rates in aquatic bioassays have been applied to cardiotoxicity assessment. However, the requisite large data sizes and long calculation times make long-term observations of heart rates difficult. In this study, we developed a real-time heart rate monitoring system for individual Daphnia magna in a water chamber mounter that immobilizes their movement in 100 mL media. Heart rates are calculated from real-time, time-resolved relative phase information from digital holograms acquired with a 200 fps camera and parallel computation using a graphics processing unit. With this system, we monitored the real-time changes in the heart rates of individual D. magna specimens exposed to HO as a positive control for reactive oxygen species (ROS) levels in an aquatic environment for 10 h, a period long enough to observe dynamic heart rate responses to the mounting process and exposure and to establish heart rate trends. An additional group analysis was conducted to compare to conventional cardiotoxicity assessment, with results of both assessments showing that the heart rates reduced according to ROS level by HO exposure concentration. Notably, the r
Who reads Real-time heart rate monitoring system for cardiotoxicity assessment of Daphnia magna using high-speed digital holographic microscopy?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Ik Hwan Kwon; In Young Kim; Min Beom Heo; June-Woo Park; Sang-Won Lee; Tae Geol Lee
- Publisher
- Elsevier BV
- Published
- 2021
- Language
- EN
- Field
- Environmental Science (Physical Sciences)