PMID- 29966339 OWN - NLM STAT- MEDLINE DCOM- 20190424 LR - 20230926 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 18 IP - 7 DP - 2018 Jun 30 TI - Multimed: An Integrated, Multi-Application Platform for the Real-Time Recording and Sub-Millisecond Processing of Biosignals. LID - 10.3390/s18072099 [doi] LID - 2099 AB - Enhanced understanding and control of electrophysiology mechanisms are increasingly being hailed as key knowledge in the fields of modern biology and medicine. As more and more excitable cell mechanics are being investigated and exploited, the need for flexible electrophysiology setups becomes apparent. With that aim, we designed Multimed, which is a versatile hardware platform for the real-time recording and processing of biosignals. Digital processing in Multimed is an arrangement of generic processing units from a custom library. These can freely be rearranged to match the needs of the application. Embedded onto a Field Programmable Gate Array (FPGA), these modules utilize full-hardware signal processing to lower processing latency. It achieves constant latency, and sub-millisecond processing and decision-making on 64 channels. The FPGA core processing unit makes Multimed suitable as either a reconfigurable electrophysiology system or a prototyping platform for VLSI implantable medical devices. It is specifically designed for open- and closed-loop experiments and provides consistent feedback rules, well within biological microseconds timeframes. This paper presents the specifications and architecture of the Multimed system, then details the biosignal processing algorithms and their digital implementation. Finally, three applications utilizing Multimed in neuroscience and diabetes research are described. They demonstrate the system’s configurability, its multi-channel, real-time processing, and its feedback control capabilities. FAU - Pirog, Antoine AU - Pirog A AD - Laboratoire de l'Integration du Materiau au Systeme (IMS), University of Bordeaux, Bordeaux INP, CNRS UMR 5218, F-33400 Talence, France. antoine.pirog@bordeaux-inp.fr. FAU - Bornat, Yannick AU - Bornat Y AUID- ORCID: 0000-0003-4758-7227 AD - Laboratoire de l'Integration du Materiau au Systeme (IMS), University of Bordeaux, Bordeaux INP, CNRS UMR 5218, F-33400 Talence, France. yannick.bornat@ims-bordeaux.fr. FAU - Perrier, Romain AU - Perrier R AD - Signalisation et physiopathologie cardiovasculaire, INSERM S-1180, University of Paris Sud, F-92296 Chatenay-Malabry, France. romain.perrier@u-psud.fr. FAU - Raoux, Matthieu AU - Raoux M AD - Institut de Chimie et Biologie des Membranes et des Nano-objets (CBMN), University of Bordeaux, CNRS UMR 5248, F-33600 Pessac, France. m.raoux@cbmn.u-bordeaux.fr. FAU - Jaffredo, Manon AU - Jaffredo M AD - Institut de Chimie et Biologie des Membranes et des Nano-objets (CBMN), University of Bordeaux, CNRS UMR 5248, F-33600 Pessac, France. manon.jaffredo@u-bordeaux.fr. FAU - Quotb, Adam AU - Quotb A AD - Laboratoire d'Analyse et d'Architecture des Systemes (LAAS), Federal University of Toulouse Midi-Pyrenees, CNRS UMR 8001, F-31031 Toulouse, France. adam.quotb@enseeiht.fr. FAU - Lang, Jochen AU - Lang J AUID- ORCID: 0000-0001-6847-5641 AD - Institut de Chimie et Biologie des Membranes et des Nano-objets (CBMN), University of Bordeaux, CNRS UMR 5248, F-33600 Pessac, France. j.lang@cbmn.u-bordeaux.fr. FAU - Lewis, Noelle AU - Lewis N AD - Laboratoire de l'Integration du Materiau au Systeme (IMS), University of Bordeaux, Bordeaux INP, CNRS UMR 5218, F-33400 Talence, France. noelle.lewis@ims-bordeaux.fr. FAU - Renaud, Sylvie AU - Renaud S AUID- ORCID: 0000-0001-5632-7991 AD - Laboratoire de l'Integration du Materiau au Systeme (IMS), University of Bordeaux, Bordeaux INP, CNRS UMR 5218, F-33400 Talence, France. sylvie.renaud@ims-bordeaux.fr. LA - eng PT - Journal Article DEP - 20180630 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 SB - IM MH - Algorithms MH - Biomedical Research/*methods MH - Diabetes Mellitus MH - Electrophysiological Phenomena/*physiology MH - Feedback MH - Humans MH - Neurosciences/*methods MH - *Signal Processing, Computer-Assisted MH - Time Factors PMC - PMC6069272 OTO - NOTNLM OT - FPGA OT - biosignal processing OT - electrophysiology OT - multi-application OT - multi-channel OT - neural recording OT - pancreatic islet recording OT - real-time COIS- The authors declare no conflict of interest. EDAT- 2018/07/04 06:00 MHDA- 2019/04/25 06:00 PMCR- 2018/07/01 CRDT- 2018/07/04 06:00 PHST- 2018/05/29 00:00 [received] PHST- 2018/06/23 00:00 [revised] PHST- 2018/06/27 00:00 [accepted] PHST- 2018/07/04 06:00 [entrez] PHST- 2018/07/04 06:00 [pubmed] PHST- 2019/04/25 06:00 [medline] PHST- 2018/07/01 00:00 [pmc-release] AID - s18072099 [pii] AID - sensors-18-02099 [pii] AID - 10.3390/s18072099 [doi] PST - epublish SO - Sensors (Basel). 2018 Jun 30;18(7):2099. doi: 10.3390/s18072099.