我々は教授のリチャードBorgens、振動プローブシステムを組み立てるに助け麻痺の研究、パデュー大学、センターに感謝しています。この研究は、MZとBRに、そして一部の再生医療研究所カリフォルニアRB1 - 01417、NSF MCB - 0951199、からの補助金によって、失明を防ぐための研究からUnrestrictedグラント、カリフォルニア大学デ​​ービス校の眼科でNEIの助成金NIH 1R01EY019101によってサポートされていました。

<ol>
	<li>Reid, B., Nuccitelli, R., Zhao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Non-invasive+measurement+of+bioelectric+currents+with+a+vibrating+probe.">Non-invasive measurement of bioelectric currents with a vibrating probe.</a> Nat. Protoc. 2, 661-9282 (2007).</li><li>Reid, B., Song, B., McCaig, C. D., Zhao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Wound+healing+in+rat+cornea:+the+role+of+electric+currents.">Wound healing in rat cornea: the role of electric currents.</a> FASEB J. 19, 379-386 (2005).</li><li>Lois, N., Reid, B., Song, B., Zhao, M., Forrester, J. V., McCaig, C. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electric+currents+and+lens+regeneration+in+the+rat.">Electric currents and lens regeneration in the rat.</a> Exp. Eye Res. 90, 316-323 (2010).</li><li>Wang, E., Reid, B., Lois, N., Forrester, J. V., McCaig, C. D., Zhao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electrical+inhibition+of+lens+epithelial+cell+proliferation:+an+additional+factor+in+secondary+cataract.">Electrical inhibition of lens epithelial cell proliferation: an additional factor in secondary cataract.</a> FASEB J. 19, 842-844 (2005).</li><li>Guo, A., Song, B., Reid, B., Gu, Y., Forrester, J. V., Jahoda, C., Zhao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effects+of+physiological+electric+fields+on+migration+of+human+dermal+fibroblasts.">Effects of physiological electric fields on migration of human dermal fibroblasts.</a> J. Invest. Derm. , (2010).</li><li>Reid, B., Song, B., Zhao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electric+currents+in+Xenopus+tadpole+tail+regeneration.">Electric currents in Xenopus tadpole tail regeneration.</a> Dev. Biol. 335, 198-207 (2009).</li><li>Zhao, M., Song, B., Pu, J., Wada, T., Reid, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electrical+signals+control+wound+healing+through+phosphatidylinositol-3-OH+kinase-&#947;.">Electrical signals control wound healing through phosphatidylinositol-3-OH kinase-&#947;.</a> 442, 457-460 (2006).</li><li>Reid, B., EO, G. r. a. u. e. -. H. e. r. n. a. n. d. e. z., Mannis, M. J., Zhao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Modulating+endogenous+electric+currents+in+human+corneal+wounds+-+a+novel+approach+of+bioelectric+stimulation+without+electrodes.">Modulating endogenous electric currents in human corneal wounds - a novel approach of bioelectric stimulation without electrodes.</a> Cornea. , (2010).</li><li>Nuccitelli, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+ultrasensitive+vibrating+probe+for+measuring+steady+extracellular+currents.">An ultrasensitive vibrating probe for measuring steady extracellular currents.</a> J. Cell Biol. 63, 614-628 (1974).</li><li>Hotary, K. B., Nuccitelli, R., Robinson, K. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+computerized+2-dimensional+vibrating+probe+for+mapping+extracellular+current+patterns.">A computerized 2-dimensional vibrating probe for mapping extracellular current patterns.</a> J. Neurosci. Meth. 43, 55-67 (1992).</li><li>Nuccitelli, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Endogenous+ion+currents+and+DC+electric+fields+in+multicellular+animal+tissues.">Endogenous ion currents and DC electric fields in multicellular animal tissues.</a> Bioelectromagnetics Supplement. 1, 147-157 (1992).</li><li>Levin, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bioelectric+mechanisms+in+regeneration:+Unique+aspects+and+future+perspectives.">Bioelectric mechanisms in regeneration: Unique aspects and future perspectives.</a> Seminars in Cell Dev. Biol. 20, 543-556 (2009).</li><li>Zhao, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electric+fields+in+wound+healing+-+An+overriding+signal+that+directs+cell+migration.">Electric fields in wound healing - An overriding signal that directs cell migration.</a> Seminars in Cell Dev. Biol. 20, 674-682 (2009).</li></ol>

利害の衝突は宣言されません。

我々は低コスト、基本的な、しかし生物系の様々な非侵襲的に電流を測定するための高感度な振動プローブシステムを説明します。 可能な限り修正<ol><li>プラチナ/イリジウム電極（世界の精密機器、猫＃PTM23B20が）場合、ステンレス鋼の代わりに使用されている、その後、金めっきの段階を排除することができます。 </li></ol>アプリケーション<p class="j...

<table><tbody><tr><td>Eligoy-Stainless Electrode</td><td>World Precision Instruments, Inc.</td><td>SSM33A70</td><td>76 mm, 7 M&amp;#937;, 1-2&amp;#x03BC;m tip</td></tr><tr><td>Gold R30 connector</td><td>www.vectorelect.com</td><td>R30</td><td>Re-usable</td></tr><tr><td>Silver-loaded epoxy</td><td>3M</td><td>SL65</td><td>Mix 1-part Resin with 1-part Hardener</td></tr><tr><td>Dissecting microscope</td><td>Olympus Corporation</td><td>SZ40</td><td>Magnification x6 to x40</td></tr><tr><td>Potassium dicyanoaurate (KAu(CN)&lt;sub&gt;2&lt;/sub&gt;)</td><td>Sigma-Aldrich</td><td>379867</td><td>CAUTION: Toxic</td></tr><tr><td>Chloroplatinic acid hydrate (H&lt;sub&gt;2&lt;/sub&gt;PtCl&lt;sub&gt;6&lt;/sub&gt; x 6H&lt;sub&gt;2&lt;/sub&gt;O)</td><td>Sigma-Aldrich</td><td>520896</td><td>CAUTION: Toxic</td></tr><tr><td>Lead(II) acetate trihydrate (Pb(CH&lt;sub&gt;3&lt;/sub&gt;CO&lt;sub&gt;2&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt; x 3H&lt;sub&gt;2&lt;/sub&gt;O)</td><td>Sigma-Aldrich</td><td>185191</td><td>CAUTION: Toxic</td></tr><tr><td>Nano-Amp power source</td><td>Home made</td><td>-</td><td>Powered by six 1.5 V (AAA) batteries</td></tr><tr><td>3-dimensional micro-positioner</td><td>Line Tool Co.</td><td>Model H</td><td></td></tr><tr><td>Lock-in amplifier</td><td>Stanford Research Systems</td><td>SR530</td><td></td></tr><tr><td>Digital I/O interface</td><td>National Instruments</td><td>PCI-6220</td><td></td></tr><tr><td>Shielded Connector Block with BNC connections</td><td>National Instruments</td><td>BNC-2110</td><td></td></tr><tr><td>Strathclyde Electrophysiology Software</td><td>University of Strathclyde Institute of Pharmacy and Biomedical Sciences, UK</td><td>WinWCP V4.1.5</td><td>Free download from: &lt;a href=&quot;http://spider.science.strath.ac.uk/sipbs/software_ses.htm&quot;&gt;http://spider.science.strath.ac.uk/sipbs/software_ses.htm&lt;/a&gt;</td></tr><tr><td>Calibration Chamber</td><td>Home made</td><td></td><td></td></tr><tr><td>Constant Current Calibrator</td><td>Vibrating Probe Company</td><td></td><td>Powered by one 9 V (PP3) battery</td></tr></tbody></table>

measurement of bioelectric current with a vibrating probe

イオンの能動輸送によって生成された電場は、、多くの生物系に存在し、多くの場合、組織や臓器の重要な役割を果たします。例えば、彼らは、創傷治癒中に細胞遊走を誘導する上で重要な役割を果たします。ここでは、細胞外の電流を測定するための超高感度振動プローブの製造と使用について説明します。プローブは、生理食塩水でμA/ cm 2の範囲でイオン電流を検出できる小型の白金黒の先端（30〜35ミクロン）、との絶縁、尖った金属線です。プローブは、圧電ベンダーによって約200 Hzで振動する。イオン電流の存在下では、プローブはその運動の両極端の間の電圧差を検出する。ロックイン振動のプローブの周波数にロックすることで外部ノイズ増幅器出力フィルタ。データはコンピューターに記録されます。プローブは、正確に1.5μA/ cm 2の電流を適用するチャンバーを使用して、適切な生理食塩水での実験の開始時と終了時に較正されています。我々は、プローブを作るシステムを設定し、キャリブレーションする方法について説明します。我々はまた、角膜の測定の手法を明らかにし、別の標本（角膜、皮膚、脳）からいくつかの代表的な結果を示す。

Watch this Scientific Journal Video about Measurement of Bioelectric Current with a Vibrating Probe at JoVE.com

Measurement of Bioelectric Current with a Vibrating Probe

様々な生物学的システムにおける生体電流を測定する非侵襲的な振動プローブの製造、キャリブレーションおよび使用が記載されている。

振動プローブによる生体電気の電流の測定

Electric fields, generated by active transport of ions, are present in many biological systems and often serve important functions in tissues and organs. ...

measurement-of-bioelectric-current-with-a-vibrating-probe

Universidad de Cartagena UDEC

Research

Education

JoVE Core

JoVE Journal

Physics

Bioengineering

Unit 1

Current and Resistance

SCIENTISTS IN ACTION

14.1K ビュー.  University of California, Davis. 様々な生物学的システムにおける生体電流を測定する非侵襲的な振動プローブの製造、キャリブレーションおよび使用が記載されている。

ビデオ: Measurement of Bioelectric Current with a Vibrating Probe

Characterizing Electron Transport through Living Biofilms

Here we demonstrate the method of electrochemical gating used to characterize electrical conductivity of electrode-grown microbial biofilms under physiologically relevant conditions.1 These measurements are performed on living biofilms in aqueous medium using source and drain electrodes patterned on a glass surface in a specialized configuration referred to as an interdigitated electrode (IDA) array. A biofilm is grown that extends across the gap connecting the source and drain. Potentials are applied to the electrodes (ES and ED) generating a source-drain current (ISD) through the biofilm between the electrodes. The dependency of electrical conductivity on gate potential (the average of the source and drain potentials, EG = [ED + ES]/2) is determined by systematically changing the gate potential and measuring the resulting source-drain current. The dependency of conductivity on gate potential provides mechanistic information about the extracellular electron transport process underlying the electrical conductivity of the specific biofilm under investigation. The electrochemical gating measurement method described here is based directly on that used by M. S. Wrighton2,3 and colleagues and R. W. Murray4,5,6 and colleagues in the 1980&#39;s to investigate thin film conductive polymers.

A protocol for measuring electrical conductivity of living microbial biofilms under physiologically relevant conditions is presented.

生きているバイオ フィルムにおける電子輸送特性評価

Here we demonstrate the method of electrochemical gating used to characterize electrical conductivity of electrode-grown microbial biofilms under ...

化学

Voltage Biasing, Cyclic Voltammetry, &amp; Electrical Impedance Spectroscopy for Neural Interfaces

Electrical impedance spectroscopy (EIS) and cyclic voltammetry (CV) measure properties of the electrode-tissue interface without additional invasive procedures, and can be used to monitor electrode performance over the long term. EIS measures electrical impedance at multiple frequencies, and increases in impedance indicate increased glial scar formation around the device, while cyclic voltammetry measures the charge carrying capacity of the electrode, and indicates how charge is transferred at different voltage levels. As implanted electrodes age, EIS and CV data change, and electrode sites that previously recorded spiking neurons often exhibit significantly lower efficacy for neural recording. The application of a brief voltage pulse to implanted electrode arrays, known as rejuvenation, can bring back spiking activity on otherwise silent electrode sites for a period of time. Rejuvenation alters EIS and CV, and can be monitored by these complementary methods. Typically, EIS is measured daily as an indication of the tissue response at the electrode site. If spikes are absent in a channel that previously had spikes, then CV is used to determine the charge carrying capacity of the electrode site, and rejuvenation can be applied to improve the interface efficacy. CV and EIS are then repeated to check the changes at the electrode-tissue interface, and neural recordings are collected. The overall goal of rejuvenation is to extend the functional lifetime of implanted arrays.

Voltage Biasing, Cyclic Voltammetry, & Electrical Impedance Spectroscopy for Neural Interfaces

The electrode-tissue interface of neural recording electrodes can be characterized with electrical impedance spectroscopy (EIS) and cyclic voltammetry (CV). Application of voltage biasing changes the electrochemical properties of the electrode-tissue interface and can improve recording capability. Voltage biasing, EIS, CV, and neural recordings are complementary.

ニューラルインタフェースの電圧バイアス、サイクリックボルタンメトリー、＆電気インピーダンス分光法

Electrical impedance spectroscopy (EIS) and cyclic voltammetry (CV) measure properties of the electrode-tissue interface without additional invasive ...

神経科学

Electric Cell-substrate Impedance Sensing for the Quantification of Endothelial Proliferation, Barrier Function, and Motility

Electric Cell-substrate Impedance Sensing (ECIS) is an in vitro impedance measuring system to quantify the behavior of cells within adherent cell layers. To this end, cells are grown in special culture chambers on top of opposing, circular gold electrodes. A constant small alternating current is applied between the electrodes and the potential across is measured. The insulating properties of the cell membrane create a resistance towards the electrical current flow resulting in an increased electrical potential between the electrodes. Measuring cellular impedance in this manner allows the automated study of cell attachment, growth, morphology, function, and motility. Although the ECIS measurement itself is straightforward and easy to learn, the underlying theory is complex and selection of the right settings and correct analysis and interpretation of the data is not self-evident. Yet, a clear protocol describing the individual steps from the experimental design to preparation, realization, and analysis of the experiment is not available. In this article the basic measurement principle as well as possible applications, experimental considerations, advantages and limitations of the ECIS system are discussed. A guide is provided for the study of cell attachment, spreading and proliferation; quantification of cell behavior in a confluent layer, with regard to barrier function, cell motility, quality of cell-cell and cell-substrate adhesions; and quantification of wound healing and cellular responses to vasoactive stimuli. Representative results are discussed based on human microvascular (MVEC) and human umbilical vein endothelial cells (HUVEC), but are applicable to all adherent growing cells.

This protocol reviews Electric Cell-substrate Impedance Sensing, a method to record and analyze the impedance spectrum of adherent cells for the quantification of cell attachment, proliferation, motility, and cellular responses to pharmacological and toxic stimuli. Detection of endothelial permeability and assessment of cell-cell and cell-substrate contacts are emphasized.

内皮増殖、バリアー機能、運動性の定量のための電気細胞 - 基質インピーダンスセンシング

Electric Cell-substrate Impedance Sensing (ECIS) is an in vitro impedance measuring system to quantify the behavior of cells within adherent cell layers. ...

生物工学

Measuring the Induced Membrane Voltage with Di-8-ANEPPS

Placement of a cell into an external electric field causes a local charge redistribution inside and outside of the cell in the vicinity of the cell membrane, resulting in a voltage across the membrane. This voltage, termed the induced membrane voltage (also induced transmembrane voltage, or induced transmembrane potential difference) and denoted by &Delta;&Phi;, exists only as long as the external field is present. If the resting voltage is present on the membrane, the induced voltage superimposes (adds) onto it. By using one of the potentiometric fluorescent dyes, such as di-8-ANEPPS, it is possible to observe the variations of &Delta;&Phi; on the cell membrane and to measure its value noninvasively. di-8-ANEPPS becomes strongly fluorescent when bound to the lipid bilayer of the cell membrane, with the change of the fluorescence intensity proportional to the change of &Delta;&Phi;. This video shows the protocol for measuring &Delta;&Phi; using di-8-ANEPPS and also demonstrates the influence of cell shape on the amplitude and spatial distribution of &Delta;&Phi;.

External electric field induces a voltage on the membrane of a cell, termed the induced membrane voltage (&Delta;&Phi;). By using the potentiometric dye di-8-ANEPPS, it is possible to measure the &Delta;&Phi; noninvasively. This video shows the protocol for measuring &Delta;&Phi; using di-8-ANEPPS.

ジ- 8 - ANEPPSで誘起膜電位の測定

Placement of a cell into an external electric field causes a local charge redistribution inside and outside of the cell in the vicinity of the cell ...

生物学

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures

A neuron will fire an action potential when its membrane potential exceeds a certain threshold. In typical activity of the brain, this occurs as a result of chemical inputs to its synapses. However, neurons can also be excited by an imposed electric field. In particular, recent clinical applications activate neurons by creating an electric field externally. It is therefore of interest to investigate how the neuron responds to the external field and what causes the action potential. Fortunately, precise and controlled application of an external electric field is possible for embryonic neuronal cells that are excised, dissociated and grown in cultures. This allows the investigation of these questions in a highly reproducible system.
In this paper some of the techniques used for controlled application of external electric field on neuronal cultures are reviewed. The networks can be either one dimensional, i.e. patterned in linear forms or allowed to grow on the whole plane of the substrate, and thus two dimensional. Furthermore, the excitation can be created by the direct application of electric field via electrodes immersed in the fluid (bath electrodes) or by inducing the electric field using the remote creation of magnetic pulses.

Neuronal cultures are a good model for studying emerging brain stimulation techniques via their effect on single neurons or a population of neurons. Presented here are different methods for stimulation of patterned neuronal cultures by an electric field produced directly by bath electrodes or induced by a time-varying magnetic field.

電気を使用してニューロンと1次元と2次元培養における磁場の外部励起

A neuron will fire an action potential when its membrane potential exceeds a certain threshold. In typical activity of the brain, this occurs as a result ...

Measurement of Extracellular Ion Fluxes Using the Ion-selective Self-referencing Microelectrode Technique

Cells from animals, plants and single cells are enclosed by a barrier called the cell membrane that separates the cytoplasm from the outside. Cell layers such as epithelia also form a barrier that separates the inside from the outside or different compartments of multicellular organisms. A key feature of these barriers is the differential distribution of ions across cell membranes or cell layers. Two properties allow this distribution: 1) membranes and epithelia display selective permeability to specific ions; 2) ions are transported through pumps across cell membranes and cell layers. These properties play crucial roles in maintaining tissue physiology and act as signaling cues after damage, during repair, or under pathological condition. The ion-selective self-referencing microelectrode allows measurements of specific fluxes of ions such as calcium, potassium or sodium at single cell and tissue levels. The microelectrode contains an ionophore cocktail which is selectively permeable to a specific ion. The internal filling solution contains a set concentration of the ion of interest. The electric potential of the microelectrode is determined by the outside concentration of the ion. As the ion concentration varies, the potential of the microelectrode changes as a function of the log of the ion activity. When moved back and forth near a source or sink of the ion (i.e. in a concentration gradient due to ion flux) the microelectrode potential fluctuates at an amplitude proportional to the ion flux/gradient. The amplifier amplifies the microelectrode signal and the output is recorded on computer. The ion flux can then be calculated by Fick&#8217;s law of diffusion using the electrode potential fluctuation, the excursion of microelectrode, and other parameters such as the specific ion mobility. In this paper, we describe in detail the methodology to measure extracellular ion fluxes using the ion-selective self-referencing microelectrode and present some representative results.

Transporters in cell membranes allow differential segregation of ions across cell membranes or cell layers and play crucial roles during tissue physiology, repair and pathology. We describe the ion-selective self-referencing microelectrode that allows the measurement of specific ion fluxes at single cells and tissues in vivo.

イオン選択自己参照微小電極法を用いた細胞外イオンフラックスの測定

Cells from animals, plants and single cells are enclosed by a barrier called the cell membrane that separates the cytoplasm from the outside. Cell layers ...

Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis

Early detection and management of fluid overload are critically important in acute illness, as the impact of therapeutic intervention can result in decreased or increased mortality rates. Accurate fluid status assessment entails appropriate therapy. Unfortunately, as the gold standard method of radioisotopic fluid measurement is costly, time-consuming, and lacks sensitivity in the acute care clinical setting, other less-accurate methods are typically used, such as clinical examination or 24 h output. Bioelectrical impedance vectorial analysis (BIVA) is an alternative impedance-based approach, where the raw parameter resistance and reactance of a subject are plotted to produce a vector, the position of which can be evaluated relative to tolerance intervals in an R-Xc graph. The fluid status is then interpreted as normal or abnormal, based on the distance from the mean vector derived from a healthy reference population. The objective of the present study is to demonstrate how to evaluate the presence of fluid overload through bioelectrical impedance vectorial analysis and the impedance ratio measured with tetrapolar multi-frequency equipment in patients admitted to the emergency department.

In this study, we demonstrate how to evaluate the presence of fluid overload through bioelectrical impedance vectorial analysis (BIVA) and the impedance ratio measured using tetrapolar multi-frequency equipment in patients admitted to the emergency department. BIVA and impedance ratio are reliable and useful tools to predict poor outcomes.

生体電気インピーダンスベクトル解析による流体過負荷の評価

Early detection and management of fluid overload are critically important in acute illness, as the impact of therapeutic intervention can result in ...

医学

<meta charset="utf8"></head><body> 前臨床げっ歯類モデルのためのエピミシスEMG電極の作製

Development of a Low-cost Epimysial Electromyography Electrode: A Simplified Workflow for Fabrication and Testing

Electromyography (EMG) is a valuable diagnostic tool for detecting neuromuscular abnormalities. Implantable epimysial electrodes are commonly used to measure EMG signals in preclinical models. Although classical resources exist describing the principles of epimysial electrode fabrication, there is a sparsity of illustrative information translating electrode theory to practice. To remedy this, we provide an updated, easy-to-follow guide on fabricating and testing a low-cost epimysial electrode. 
Electrodes were made by folding and inserting two platinum-iridium foils into a precut silicone base to form the contact surfaces. Next, coated stainless steel wires were welded to each contact surface to form the electrode leads. Lastly, a silicone mixture was used to seal the electrode. Ex vivo testing was conducted to compare our custom-fabricated electrode to an industry standard electrode in a saline bath, where high levels of signal agreement (sine [intraclass correlation - ICC= 0.993], square [ICC = 0.995], triangle [ICC = 0.958]), and temporal-synchrony (sine [r = 0.987], square [r = 0.990], triangle [r= 0.931]) were found across all waveforms. Low levels of electrode impedance were also quantified via electrochemical impedance spectroscopy. 
An in vivo performance assessment was also conducted where the vastus lateralis muscle of a rat was surgically instrumented with the custom-fabricated electrode and signaling was acquired during uphill and downhill walking. As expected, peak EMG activity was significantly lower during downhill walking (0.008 &plusmn; 0.005 mV) than uphill (0.031 &plusmn; 0.180 mV, p = 0.005), supporting the validity of the device. The reliability and biocompatibility of the device were also supported by consistent signaling during level walking at 14 days and 56 days post implantation (0.01 &plusmn; 0.007 mV, 0.012 &plusmn; 0.007 mV respectively; p &gt; 0.05) and the absence of histological inflammation. Collectively, we provide an updated workflow for the fabrication and testing of low-cost epimysial electrodes.

<meta charset="utf8"></head><body>著者スポットライト:ACL損傷研究におけるエピミシアル電極の作製と試験

Our purpose was to provide an updated, easy-to-follow guide on the fabrication and testing of epimysial electromyography electrodes. To that end, we provide instructions for material sourcing and a detailed walkthrough of the fabrication and testing process.

低コストのエピミジオル筋電図電極の開発:製造と試験のための簡素化されたワークフロー

Electromyography (EMG) is a valuable diagnostic tool for detecting neuromuscular abnormalities. Implantable epimysial electrodes are commonly used to ...

振動プローブによる生体電気の電流の測定

要約

さらに動画を探す

この動画の章

生きているバイオフィルムにおける電子輸送特性評価

ニューラルインタフェースの電圧バイアス、サイクリックボルタンメトリー、＆電気インピーダンス分光法

内皮増殖、バリアー機能、運動性の定量のための電気細胞 - 基質インピーダンスセンシング

ジ- 8 - ANEPPSで誘起膜電位の測定

電気を使用してニューロンと1次元と2次元培養における磁場の外部励起

イオン選択自己参照微小電極法を用いた細胞外イオンフラックスの測定

生体電気インピーダンスベクトル解析による流体過負荷の評価

低コストのエピミジオル筋電図電極の開発:製造と試験のための簡素化されたワークフロー

低コストのエピミジオル筋電図電極の開発:製造と試験のための簡素化されたワークフロー

低コストのエピミジオル筋電図電極の開発:製造と試験のための簡素化されたワークフロー

振動プローブによる生体電気の電流の測定

要約

さらに動画を探す

この動画の章

生きているバイオ フィルムにおける電子輸送特性評価

ニューラルインタフェースの電圧バイアス、サイクリックボルタンメトリー、＆電気インピーダンス分光法

内皮増殖、バリアー機能、運動性の定量のための電気細胞 - 基質インピーダンスセンシング

ジ- 8 - ANEPPSで誘起膜電位の測定

電気を使用してニューロンと1次元と2次元培養における磁場の外部励起

イオン選択自己参照微小電極法を用いた細胞外イオンフラックスの測定

生体電気インピーダンスベクトル解析による流体過負荷の評価

低コストのエピミジオル筋電図電極の開発:製造と試験のための簡素化されたワークフロー

低コストのエピミジオル筋電図電極の開発:製造と試験のための簡素化されたワークフロー

低コストのエピミジオル筋電図電極の開発:製造と試験のための簡素化されたワークフロー

生きているバイオフィルムにおける電子輸送特性評価