A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic Biochips

Digital microfluidic biochips (DMFBs), which are used in various fields like DNA analysis, clinical diagnosis, and PCR testing, have made biochemical experiments more compact, efficient, and user-friendly than the previous methods. However, their reliability is often compromised by their inability t...

Full description

Bibliographic Details
Main Authors: Tomohisa Kawakami, Chiharu Shiro, Hiroki Nishikawa, Xiangbo Kong, Hiroyuki Tomiyama, Shigeru Yamashita
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/21/8924
_version_ 1827765357607124992
author Tomohisa Kawakami
Chiharu Shiro
Hiroki Nishikawa
Xiangbo Kong
Hiroyuki Tomiyama
Shigeru Yamashita
author_facet Tomohisa Kawakami
Chiharu Shiro
Hiroki Nishikawa
Xiangbo Kong
Hiroyuki Tomiyama
Shigeru Yamashita
author_sort Tomohisa Kawakami
collection DOAJ
description Digital microfluidic biochips (DMFBs), which are used in various fields like DNA analysis, clinical diagnosis, and PCR testing, have made biochemical experiments more compact, efficient, and user-friendly than the previous methods. However, their reliability is often compromised by their inability to adapt to all kinds of errors. Errors in biochips can be categorized into two types: known errors, and unknown errors. Known errors are detectable before the start of the routing process using sensors or cameras. Unknown errors, in contrast, only become apparent during the routing process and remain undetected by sensors or cameras, which can unexpectedly stop the routing process and diminish the reliability of biochips. This paper introduces a deep reinforcement learning-based routing algorithm, designed to manage not only known errors but also unknown errors. Our experiments demonstrated that our algorithm outperformed the previous ones in terms of the success rate of the routing, in the scenarios including both known errors and unknown errors. Additionally, our algorithm contributed to detecting unknown errors during the routing process, identifying the most efficient routing path with a high probability.
first_indexed 2024-03-11T11:21:47Z
format Article
id doaj.art-d5bd954ec868459ca6a7cfd720f19e09
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-03-11T11:21:47Z
publishDate 2023-11-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-d5bd954ec868459ca6a7cfd720f19e092023-11-10T15:12:47ZengMDPI AGSensors1424-82202023-11-012321892410.3390/s23218924A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic BiochipsTomohisa Kawakami0Chiharu Shiro1Hiroki Nishikawa2Xiangbo Kong3Hiroyuki Tomiyama4Shigeru Yamashita5Graduate School of Science and Engineering, Ritsumeikan University, Kusatsu 525-8577, JapanGraduate School of Science and Engineering, Ritsumeikan University, Kusatsu 525-8577, JapanGraduate School of Information Science and Technology, Osaka University, Osaka 565-0871, JapanDepartment of Intelligent Robotics, Faculty of Engineering, Toyama Prefectural University, Imizu 939-0398, JapanGraduate School of Science and Engineering, Ritsumeikan University, Kusatsu 525-8577, JapanCollege of Information Science and Engineering, Ritsumeikan University, Kusatsu 525-8577, JapanDigital microfluidic biochips (DMFBs), which are used in various fields like DNA analysis, clinical diagnosis, and PCR testing, have made biochemical experiments more compact, efficient, and user-friendly than the previous methods. However, their reliability is often compromised by their inability to adapt to all kinds of errors. Errors in biochips can be categorized into two types: known errors, and unknown errors. Known errors are detectable before the start of the routing process using sensors or cameras. Unknown errors, in contrast, only become apparent during the routing process and remain undetected by sensors or cameras, which can unexpectedly stop the routing process and diminish the reliability of biochips. This paper introduces a deep reinforcement learning-based routing algorithm, designed to manage not only known errors but also unknown errors. Our experiments demonstrated that our algorithm outperformed the previous ones in terms of the success rate of the routing, in the scenarios including both known errors and unknown errors. Additionally, our algorithm contributed to detecting unknown errors during the routing process, identifying the most efficient routing path with a high probability.https://www.mdpi.com/1424-8220/23/21/8924biochipsdigital microfluidic biochipsdeep reinforcement learningoptimization
spellingShingle Tomohisa Kawakami
Chiharu Shiro
Hiroki Nishikawa
Xiangbo Kong
Hiroyuki Tomiyama
Shigeru Yamashita
A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic Biochips
Sensors
biochips
digital microfluidic biochips
deep reinforcement learning
optimization
title A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic Biochips
title_full A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic Biochips
title_fullStr A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic Biochips
title_full_unstemmed A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic Biochips
title_short A Deep Reinforcement Learning Approach to Droplet Routing for Erroneous Digital Microfluidic Biochips
title_sort deep reinforcement learning approach to droplet routing for erroneous digital microfluidic biochips
topic biochips
digital microfluidic biochips
deep reinforcement learning
optimization
url https://www.mdpi.com/1424-8220/23/21/8924
work_keys_str_mv AT tomohisakawakami adeepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT chiharushiro adeepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT hirokinishikawa adeepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT xiangbokong adeepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT hiroyukitomiyama adeepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT shigeruyamashita adeepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT tomohisakawakami deepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT chiharushiro deepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT hirokinishikawa deepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT xiangbokong deepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT hiroyukitomiyama deepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips
AT shigeruyamashita deepreinforcementlearningapproachtodropletroutingforerroneousdigitalmicrofluidicbiochips