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Mestre R, Astobiza AM, Webster-Wood VA, Ryan M, Saif MTA. Ethics and responsibility in biohybrid robotics research. Proc Natl Acad Sci U S A 2024; 121:e2310458121. [PMID: 39042690 PMCID: PMC11294997 DOI: 10.1073/pnas.2310458121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024] Open
Abstract
The industrial revolution of the 19th century marked the onset of an era of machines and robots that transformed societies. Since the beginning of the 21st century, a new generation of robots envisions similar societal transformation. These robots are biohybrid: part living and part engineered. They may self-assemble and emerge from complex interactions between living cells. While this new era of living robots presents unprecedented opportunities for positive societal impact, it also poses a host of ethical challenges. A systematic, nuanced examination of these ethical issues is of paramount importance to guide the evolution of this nascent field. Multidisciplinary fields face the challenge that inertia around collective action to address ethical boundaries may result in unexpected consequences for researchers and societies alike. In this Perspective, we i) clarify the ethical challenges associated with biohybrid robotics, ii) discuss the need for and elements of a potential governance framework tailored to this technology; and iii) propose tangible steps toward ethical compliance and policy formation in the field of biohybrid robotics.
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Affiliation(s)
- Rafael Mestre
- Agents, Interaction and Complexity Group, School of Electronics and Computer Science, University of Southampton, SouthamptonSO17 1BJ, United Kingdom
- Politics and International Relations Department, University of Southampton, SouthamptonSO17 1BJ, United Kingdom
- Centre for Democratic Futures, University of Southampton, SouthamptonSO17 1BJ, United Kingdom
- Centre for Robotics, University of Southampton, SouthamptonSO17 1BJ, United Kingdom
- Institute for Life Sciences, University of Southampton, SouthamptonSO17 1BJ, United Kingdom
| | - Aníbal M. Astobiza
- Department of Public Law, University of the Basque Country/Euskal Herriko Unibertsitatea, Donostia20018, Spain
| | - Victoria A. Webster-Wood
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh15213, Pennsylvania
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh15213, Pennsylvania
- The Robotics Institute, Carnegie Mellon University, Pittsburgh15213, Pennsylvania
- The McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh15213, Pennsylvania
| | - Matt Ryan
- Politics and International Relations Department, University of Southampton, SouthamptonSO17 1BJ, United Kingdom
- Centre for Democratic Futures, University of Southampton, SouthamptonSO17 1BJ, United Kingdom
- Democratic Innovations Research Unit, Goethe-Universität, Frankfurt am Main60323, Germany
| | - M. Taher A. Saif
- Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana61801, Illinois
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Neta S, Ariel G, Yossi Y, Amir A, Ben MM. The Locust antenna as an odor discriminator. Biosens Bioelectron 2022; 221:114919. [DOI: 10.1016/j.bios.2022.114919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022]
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Full J, Baumgarten Y, Delbrück L, Sauer A, Miehe R. Market Perspectives and Future Fields of Application of Odor Detection Biosensors within the Biological Transformation-A Systematic Analysis. BIOSENSORS-BASEL 2021; 11:bios11030093. [PMID: 33806819 PMCID: PMC8004717 DOI: 10.3390/bios11030093] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/18/2021] [Accepted: 03/20/2021] [Indexed: 02/06/2023]
Abstract
The technological advantages that biosensors have over conventional technical sensors for odor detection and the role they play in the biological transformation have not yet been comprehensively analyzed. However, this is necessary for assessing their suitability for specific fields of application as well as their improvement and development goals. An overview of biological basics of olfactory systems is given and different odor sensor technologies are described and classified in this paper. Specific market potentials of biosensors for odor detection are identified by applying a tailored methodology that enables the derivation and systematic comparison of both the performance profiles of biosensors as well as the requirement profiles for various application fields. Therefore, the fulfillment of defined requirements is evaluated for biosensors by means of 16 selected technical criteria in order to determine a specific performance profile. Further, a selection of application fields, namely healthcare, food industry, agriculture, cosmetics, safety applications, environmental monitoring for odor detection sensors is derived to compare the importance of the criteria for each of the fields, leading to market-specific requirement profiles. The analysis reveals that the requirement criteria considered to be the most important ones across all application fields are high specificity, high selectivity, high repeat accuracy, high resolution, high accuracy, and high sensitivity. All these criteria, except for the repeat accuracy, can potentially be better met by biosensors than by technical sensors, according to the results obtained. Therefore, biosensor technology in general has a high application potential for all the areas of application under consideration. Health and safety applications especially are considered to have high potential for biosensors due to their correspondence between requirement and performance profiles. Special attention is paid to new areas of application that require multi-sensing capability. Application scenarios for multi-sensing biosensors are therefore derived. Moreover, the role of biosensors within the biological transformation is discussed.
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Affiliation(s)
- Johannes Full
- Fraunhofer Institute of Manufacturing Engineering and Automation IPA, 70569 Stuttgart, Germany; (Y.B.); (L.D.); (A.S.); (R.M.)
- Correspondence: ; Tel.: +49-711-970-1434
| | - Yannick Baumgarten
- Fraunhofer Institute of Manufacturing Engineering and Automation IPA, 70569 Stuttgart, Germany; (Y.B.); (L.D.); (A.S.); (R.M.)
| | - Lukas Delbrück
- Fraunhofer Institute of Manufacturing Engineering and Automation IPA, 70569 Stuttgart, Germany; (Y.B.); (L.D.); (A.S.); (R.M.)
| | - Alexander Sauer
- Fraunhofer Institute of Manufacturing Engineering and Automation IPA, 70569 Stuttgart, Germany; (Y.B.); (L.D.); (A.S.); (R.M.)
- Institute for Energy Efficiency in Production (EEP), University of Stuttgart, 70569 Stuttgart, Germany
| | - Robert Miehe
- Fraunhofer Institute of Manufacturing Engineering and Automation IPA, 70569 Stuttgart, Germany; (Y.B.); (L.D.); (A.S.); (R.M.)
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Light-Weight Portable Electroantennography Device as a Future Field-Based Tool for Applied Chemical Ecology. J Chem Ecol 2020; 46:557-566. [PMID: 32601892 DOI: 10.1007/s10886-020-01190-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/04/2020] [Accepted: 05/29/2020] [Indexed: 10/24/2022]
Abstract
Portable electroantennograms (pEAG) can further our understanding of odor plume dynamics and complement laboratory-based electroantennogram tools. pEAG's can help to address important questions such as the influence of plume structure on insect behavior, the active space of semiochemical-baited traps, and the impact of biotic and abiotic factors on this active space. Challenges associated with pEAGs include their miniaturization and sensitivity, confounding environmental odors, and processing of data. Here, we describe a pEAG built with modern engineering hardware and techniques that is portable in being both light in weight (516 g) and smaller (12 × 12 × 8 cm, volume 1152 cm3) than earlier models. It is able to incorporate insects of a range of sizes (4 to 30 mm antennal length), has wireless communication (communication range of 600 m urban, 10 km line of sight), a stand-alone power supply, and uses both antennae of the test insect. We report normalized antennal responses from Epiphyas postvittana in a dose response experiment where our pEAG compared favorably with traditional laboratory EAG equipment for this species. Dose-response comparisons between E. postvittana, Agrotis ipsilon, and Lymantria dispar dispar showed mean detection limits from a pheromone source dose of 100, 100, and 1 ng, respectively, for our pEAG. This pEAG should allow future real-time analysis of EAG responses in the field in research on how insects interact with odor plumes and the factors that influence the active space of semiochemical-baited traps.
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Lan B, Kanzaki R, Ando N. Dropping Counter: A Detection Algorithm for Identifying Odour-Evoked Responses from Noisy Electroantennograms Measured by a Flying Robot. SENSORS 2019; 19:s19204574. [PMID: 31640187 PMCID: PMC6832354 DOI: 10.3390/s19204574] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/12/2019] [Accepted: 10/18/2019] [Indexed: 11/30/2022]
Abstract
The electroantennogram (EAG) is a technique used for measuring electrical signals from the antenna of an insect. Its rapid response time, quick recovery speed, and high sensitivity make it suitable for odour-tracking tasks employing mobile robots. However, its application to flying robots has not been extensively studied owing to the electrical and mechanical noises generated. In this study, we investigated the characteristics of the EAG mounted on a tethered flying quadcopter and developed a special counter-based algorithm for detecting the odour-generated responses. As the EAG response is negative, the algorithm creates a window and compares the values inside it. Once a value is smaller than the first one, the counter will increase by one and finally turns the whole signal into a clearer odour stimulated result. By experimental evaluation, the new algorithm gives a higher cross-correlation coefficient when compared with the fixed-threshold method. The result shows that the accuracy of this novel algorithm for recognising odour-evoked EAG signals from noise exceeds that of the traditional method; furthermore, the use of insect antennae as odour sensors for flying robots is demonstrated to be feasible.
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Affiliation(s)
- Bluest Lan
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Meguro-ku, Komaba, Tokyo 153-8904, Japan.
| | - Ryohei Kanzaki
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Meguro-ku, Komaba, Tokyo 153-8904, Japan.
| | - Noriyasu Ando
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Meguro-ku, Komaba, Tokyo 153-8904, Japan.
- Department of Systems Life Engineering, Faculty of Engineering, Maebashi Institute of Technology, 460-1 Kamisadori-cho, Maebashi, Gunma 371-0816, Japan.
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Cave JW, Wickiser JK, Mitropoulos AN. Progress in the development of olfactory-based bioelectronic chemosensors. Biosens Bioelectron 2018; 123:211-222. [PMID: 30201333 DOI: 10.1016/j.bios.2018.08.063] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 08/18/2018] [Accepted: 08/25/2018] [Indexed: 12/13/2022]
Abstract
Artificial chemosensory devices have a wide range of applications in industry, security, and medicine. The development of these devices has been inspired by the speed, sensitivity, and selectivity by which the olfactory system in animals can probe the chemical nature of the environment. In this review, we examine how molecular and cellular components of natural olfactory systems have been incorporated into artificial chemosensors, or bioelectronic sensors. We focus on the biological material that has been combined with signal transduction systems to develop artificial chemosensory devices. The strengths and limitations of different biological chemosensory material at the heart of these devices, as well as the reported overall effectiveness of the different bioelectronic sensor designs, is examined. This review also discusses future directions and challenges for continuing to advance development of bioelectronic sensors.
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Affiliation(s)
- John W Cave
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY, United States; Burke Neurological Institute, White Plains, NY, United States; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, United States
| | - J Kenneth Wickiser
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY, United States
| | - Alexander N Mitropoulos
- Department of Chemistry and Life Science, United States Military Academy, West Point, NY, United States; Department of Mathematical Sciences, United States Military Academy, West Point, NY, United States.
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Webster-Wood VA, Akkus O, Gurkan UA, Chiel HJ, Quinn RD. Organismal Engineering: Towards a Robotic Taxonomic Key for Devices Using Organic Materials. Sci Robot 2017; 2:eaap9281. [PMID: 31360812 PMCID: PMC6663099 DOI: 10.1126/scirobotics.aap9281] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Can we create robots with the behavioral flexibility and robustness of animals? Engineers often use bio-inspiration to mimic animals. Recent advances in tissue engineering now allow the use of components from animals. By integrating organic and synthetic components, researchers are moving towards the development of engineered organisms whose structural framework, actuation, sensing, and control are partially or completely organic. This review discusses recent exciting work demonstrating how organic components can be used for all facets of robot development. Based on this analysis, we propose a Robotic Taxonomic Key to guide the field towards a unified lexicon for device description.
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Affiliation(s)
| | - Ozan Akkus
- Dept. of Mech. and Aero. Engineering, Case Western Reserve University, Cleveland, OH, USA
- Dept. of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Dept. of Orthopaedics, Case Western Reserve University, Cleveland, OH, USA
| | - Umut A. Gurkan
- Dept. of Mech. and Aero. Engineering, Case Western Reserve University, Cleveland, OH, USA
- Dept. of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Dept. of Orthopaedics, Case Western Reserve University, Cleveland, OH, USA
| | - Hillel J. Chiel
- Dept. of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Dept. of Biology, Case Western Reserve University, Cleveland, OH, USA
- Dept. of Neurosciences, Case Western Reserve University, Cleveland, OH, USA
| | - Roger D. Quinn
- Dept. of Mech. and Aero. Engineering, Case Western Reserve University, Cleveland, OH, USA
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Martinez D, Arhidi L, Demondion E, Masson JB, Lucas P. Using insect electroantennogram sensors on autonomous robots for olfactory searches. J Vis Exp 2014:e51704. [PMID: 25145980 PMCID: PMC4692349 DOI: 10.3791/51704] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Robots designed to track chemical leaks in hazardous industrial facilities or explosive traces in landmine fields face the same problem as insects foraging for food or searching for mates: the olfactory search is constrained by the physics of turbulent transport. The concentration landscape of wind borne odors is discontinuous and consists of sporadically located patches. A pre-requisite to olfactory search is that intermittent odor patches are detected. Because of its high speed and sensitivity, the olfactory organ of insects provides a unique opportunity for detection. Insect antennae have been used in the past to detect not only sex pheromones but also chemicals that are relevant to humans, e.g., volatile compounds emanating from cancer cells or toxic and illicit substances. We describe here a protocol for using insect antennae on autonomous robots and present a proof of concept for tracking odor plumes to their source. The global response of olfactory neurons is recorded in situ in the form of electroantennograms (EAGs). Our experimental design, based on a whole insect preparation, allows stable recordings within a working day. In comparison, EAGs on excised antennae have a lifetime of 2 hr. A custom hardware/software interface was developed between the EAG electrodes and a robot. The measurement system resolves individual odor patches up to 10 Hz, which exceeds the time scale of artificial chemical sensors. The efficiency of EAG sensors for olfactory searches is further demonstrated in driving the robot toward a source of pheromone. By using identical olfactory stimuli and sensors as in real animals, our robotic platform provides a direct means for testing biological hypotheses about olfactory coding and search strategies. It may also prove beneficial for detecting other odorants of interests by combining EAGs from different insect species in a bioelectronic nose configuration or using nanostructured gas sensors that mimic insect antennae.
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Affiliation(s)
- Dominique Martinez
- UMR 7503, Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), Centre National de la Recherche Scientifique (CNRS);
| | - Lotfi Arhidi
- UMR 7503, Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), Centre National de la Recherche Scientifique (CNRS)
| | - Elodie Demondion
- UMR 1392 iEES-Paris, Institut d'Ecologie et des Sciences de l'Environnement de Paris
| | | | - Philippe Lucas
- UMR 1392 iEES-Paris, Institut d'Ecologie et des Sciences de l'Environnement de Paris
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Schott M, Wehrenfennig C, Gasch T, Vilcinskas A. Insect Antenna-Based Biosensors for In Situ Detection of Volatiles. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013; 136:101-22. [DOI: 10.1007/10_2013_210] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Abstract
Exhaustive odour impact assessment should involve the evaluation of the impact of odours directly on citizens. For this purpose it might be useful to have an instrument capable of continuously monitoring ambient air quality, detecting the presence of odours and also recognizing their provenance. This paper discusses the laboratory and field tests conducted in order to evaluate the performance of a new electronic nose, specifically developed for monitoring environmental odours. The laboratory tests proved the instrument was able to discriminate between the different pure substances being tested, and to estimate the odour concentrations giving correlation indexes (R2) of 0.99 and errors below 15%. Finally, the experimental monitoring tests conducted in the field, allowed us to verify the effectiveness of this electronic nose for the continuous detection of odours in ambient air, proving its stability to variable atmospheric conditions and its capability to detect odour peaks.
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Du L, Wu C, Liu Q, Huang L, Wang P. Recent advances in olfactory receptor-based biosensors. Biosens Bioelectron 2012; 42:570-80. [PMID: 23261691 DOI: 10.1016/j.bios.2012.09.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2012] [Revised: 08/20/2012] [Accepted: 09/02/2012] [Indexed: 12/30/2022]
Abstract
The biological olfactory system can recognize and discriminate thousands of volatile organic compounds (VOCs) with extremely high sensitivity and specificity. The most fundamental elements are olfactory receptors (ORs) in the cilia of olfactory sensory neurons (OSNs), which contribute greatly to the high-performance olfactory system. The excellent properties of ORs are generally recognized in the development of biomimetic OR-based biosensors. Over the past two decades, much work has been done in developing OR-based biosensors due to their promising potential in many applications. In this article, we will outline the latest advances of OR-based biosensors. Two current crucial issues in this field will be discussed, namely, the production methods and immobilization techniques of ORs. We will also elaborate on various OR-based biosensors and their latest developments. Finally, current research trends and future challenges in this field will be discussed.
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Affiliation(s)
- Liping Du
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
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Myrick AJ, Baker TC. Chopper-stabilized gas chromatography-electroantennography: Part I. background, signal processing and example. Biosens Bioelectron 2011; 31:197-204. [PMID: 22112834 DOI: 10.1016/j.bios.2011.10.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 10/10/2011] [Accepted: 10/11/2011] [Indexed: 11/19/2022]
Abstract
A new method that can improve gas-chromatography-electroantennographic detection (GC-EAD) by orders of magnitude through a technique known as chopper stabilization combined with matched filtering in colored noise is presented. The EAD is a physiological recording from the antenna of an insect which can be used to find compounds in the GC effluent that the antenna is able to detect, having important applications for pest control and understanding of chemical communication in nature. The new method is demonstrated with whole-animal male Helicoverpa zea antennal preparations for detection of major pheromone component (cis-11-hexadecenal) and compared to results obtained using traditional EAD recording techniques. Results indicate that chopper stabilization under these circumstances can increase odorant detection performance by a factor of approximately 10(4) over traditional methods. The time course of the response of the antenna is also better resolved under chopped conditions. Although the degree of improvement is expected to vary with insect species, odor, and insect preparation, under most circumstances a more sensitive and robust GC-EAD instrument will result from the application of this technique.
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Affiliation(s)
- Andrew J Myrick
- Dept. of Entomology, Center for Chemical Ecology, 104 Chemical Ecology Laboratory, Penn State University, University Park, PA 16802, USA.
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Myrick AJ, Baker TC. Locating a compact odor source using a four-channel insect electroantennogram sensor. BIOINSPIRATION & BIOMIMETICS 2011; 6:016002. [PMID: 21160116 DOI: 10.1088/1748-3182/6/1/016002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Here we demonstrate the feasibility of using an array of live insects to detect concentrated packets of odor and infer the location of an odor source (∼15 m away) using a backward Lagrangian dispersion model based on the Langevin equation. Bayesian inference allows uncertainty to be quantified, which is useful for robotic planning. The electroantennogram (EAG) is the biopotential developed between the tissue at the tip of an insect antenna and its base, which is due to the massed response of the olfactory receptor neurons to an odor stimulus. The EAG signal can carry tens of bits per second of information with a rise time as short as 12 ms (K A Justice 2005 J. Neurophiol. 93 2233-9). Here, instrumentation including a GPS with a digital compass and an ultrasonic 2D anemometer has been integrated with an EAG odor detection scheme, allowing the location of an odor source to be estimated by collecting data at several downwind locations. Bayesian inference in conjunction with a Lagrangian dispersion model, taking into account detection errors, has been implemented resulting in an estimate of the odor source location within 0.2 m of the actual location.
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Affiliation(s)
- A J Myrick
- Chemical Ecology Laboratory, Department of Entomology, Pennsylvania State University, University Park, 16802, USA
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Revision from olfactory assessments for the identification of acetate and ammonium in the US Pharmacopeia general chapter 〈191〉 to color-based procedures. ACS CHEMICAL HEALTH & SAFETY 2010. [DOI: 10.1016/j.jchas.2009.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Detection and Discrimination of Mixed Odor Strands in Overlapping Plumes Using an Insect-Antenna-Based Chemosensor System. J Chem Ecol 2009; 35:118-30. [DOI: 10.1007/s10886-008-9582-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2008] [Revised: 10/27/2008] [Accepted: 12/15/2008] [Indexed: 10/21/2022]
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