Axon Instruments Patch-Clamp Amplifiers
Patch-clamp amplifiers from single channel, whole-cell, and two electrode recordings
Patch-clamp amplifiers from single channels to large macroscopic recordings
The Axon Instruments® series of amplifiers provide best-in-class solutions for the entire range of patch-clamp experiments. The portfolio of amplifiers includes Axopatch™ 200B for ultra low-noise single-channel recordings, MultiClamp™ 700B for whole-cell voltage-clamp and high-speed current-clamp recordings, and Axoclamp™ 900A for two-electrode voltage-clamp and current-clamp recordings.
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Minimize signal to noise ratio
The Axopatch 200B Capacitor Feedback Patch Clamp Amplifier offers one of the lowest-noise single-channel recordings available via innovative capacitor-feedback technology.
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Perform multi-channel experiments
The MultiClamp 700B Microelectrode Amplifier enables whole-cell voltage-clamp and current-clamp recordings. It is the most versatile amplifier in the portfolio.
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Measure large currents
Large output compliance range of our Axoclamp 900A Microelectrode Amplifier facilitates the measurement of large and rapid voltage-clamp and current-clamp recordings.
Using the Axoclamp 900A for Two-Electrode Voltage-Clamp of Xenopus Oocytes Expressing Ion Channels
Features
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Actively cooled headstage
The Axopatch 200B amplifier features proprietary technology that provides active headstage cooling that reduces electrical noise close to the theoretical limits of physics.
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Software control of settings
The MultiClamp 700B and Axoclamp 900A amplifiers offer software control. Software control streamlines setup, and enables automation of parameters, telegraphing, and advanced protocols.
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Support up to four headstages
The MultiClamp 700B supports up to two primary CV-7B headstages and two optional auxiliary headstages (HS-2 or VG-2 type) enabling multi-channel recording for cellular network studies.
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Large output compliance range
The Axoclamp 900A amplifier supports the measurement of larger currents and ensures faster clamp speed (±180 V in TEVC and HVIC modes).
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Multiple modes of operation
The Axoclamp 900A amplifier offers 5 modes of operation: current clamp, discontinuous current clamp, two-electrode voltage clamp, discontinuous single-electrode voltage clamp, high-voltage current clamp.
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Works with any data acquisition system
The family of amplifiers integrates with most data acquisition programs. The pCLAMP™ 11 Software and DigiData® 1550B system for data acquisition and analysis provide optimal performance.
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Data Sheet
Axon Digidata 1550B Plus HumSilencer
Get details about Axon Digidata 1550B Low-Noise Data Acquisition System plus HumSilencer.
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eBook
The Axon™ Guide
The Axon Guide, a guide to electrophysiology and Biophysics laboratory techniques
Applications of Axon Instruments Patch-Clamp Amplifiers
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Single Channel Recording
The patch-clamp technique involves a glass micropipette forming a tight gigaohm seal with the cell membrane. The micropipette contains a wire bathed in an electrolytic solution to conduct ions. To measure single ion channels, a “patch” of membrane is pulled away from the cell after forming a gigaohm seal. If a single ion channel is within the patch, currents can be measured. The Axopatch 200B, with extremely low-noise profile, is ideal for this application, maximizing signal for the smallest conductance ion channels.
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Ion Channels
An ion channel is a group of proteins that form a pore across the lipid bilayer of a cell. Each channel is permeable to a specific ion (examples: potassium, sodium, calcium, chloride). Patch-clamp is used to evaluate current or voltage in the membrane associated with ion channel activity via direct measurement in real time using ultra-sensitive amplifiers, high-quality data acquisition systems, and powerful software to evaluate the results.
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Patch Clamp
The patch-clamp technique involves a glass micropipette forming a tight gigaohm (GΩ) seal with the cell membrane. The micropipette contains a wire bathed in an electrolytic solution to conduct ions. The whole-cell technique involves rupturing a patch of membrane with mild suction to provide low-resistance electrical access, allowing control of transmembrane voltage. Alternatively, investigators can pull a patch of membrane away from the cell and evaluate currents through single channels via the inside-out or outside-out patch-clamp technique.
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Whole Cell Recording
The whole cell patch-clamp technique involves a glass micropipette forming a tight gigaohm (GΩ) seal with the cell membrane. This micropipette contains a wire bathed in an electrolytic solution to conduct ions. A patch of membrane is subsequently ruptured by mild suction so that the glass micropipette provides a low-resistance access to the whole cell, thereby allowing the investigator to control the transmembrane voltage and allowing the investigator to evaluate the sum of all currents through membrane bound ion channels.
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Series Resistance Compensation
Series resistance is the sum of all resistances between the amplifier and the inside of the cell using the whole-cell recording method. Due to Ohms Law, the larger this resistance, the greater the difference between the command level and the measured values. This creates an error in actual voltage or current measurement potentially leading to inaccurate observations. To overcome this, the Molecular Devices amplifiers have built-in circuitry to improve the bandwidth of the recording by compensating the error introduced by the voltage or current drop across the series resistance.
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Voltage Clamp Amplifier
In an experiment using the voltage-clamp method, the investigator controls the membrane voltage in a cell and measures the transmembrane current required to maintain that voltage. This voltage control is called a command voltage. To maintain this command voltage level, an amplifier must inject current. The current injected will be equal and opposite the current escaping through open ion channels, allowing the amplifier to measure the amount of current passing through open membrane bound ion channels.
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Current Clamp Amplifier
Current-clamp is a method used to measure the resulting membrane potential (voltage) from an injection of current. To measure the membrane potential, the MultiClamp 700B and Axoclamp 900A both monitor voltage drop initiated by current injection along an in-series resistor. Current-clamp is commonly used to inject simulated, but realistic current waveforms into a cell, and monitor membrane effect. This technique is ideal for the evaluation of important cellular events such as action potentials.
Specifications & Options of Axon Instruments Patch-Clamp Amplifiers
* Holding level, current passing, filter option, multiple signal outputs, pipette offset, fast and whole cell capacitance compensation, series compensation, pipette neutralization, bridge balance
Resources of Axon Instruments Patch-Clamp Amplifiers
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Data Sheet
Axon Digidata 1550B Plus HumSilencer
Get details about Axon Digidata 1550B Low-Noise Data Acquisition System plus HumSilencer.
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Data Sheet
Axon Axoclamp 900A Microelectrode Amplifier
Explore this Axon Axoclamp 900A Microelectrode Amplifier datasheet. this instrument offers several modes of operation that measure signals from sin…
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Data Sheet
Axon Axopatch 200B Microelectrode Amplifier
Download datasheet to learn about Axon Axopatch 200B Microelectrode Amplifier which includes cooling of the active elements to achieve the lowest p…
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eBook
The Axon™ Guide
The Axon Guide, a guide to electrophysiology and Biophysics laboratory techniques
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Data Sheet
MultiClamp 700B Microelectrode Amplifier
Learn about MultiClamp 700B Amplifier for electrophysiology and electrochemistry which is capable of single-channel & whole-cell voltage patch…
Infographic
The Patch-Clamp Rig
This guide provides information about the Patch-Clamp Rig. It is an important e electrophysiology technique with a broad range of applications.
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Presentations
Setting Up Clampex for Data Acquisition MultiClamp and digitizer…
By the end of the tutorial, you will be ready to acquire data and understand how to tailor setup configurations to meet your needs. We will explain…
Videos
How to Combine Traces, Calculate Rise or Decay Time Constant, and Perform Curve Fitting Using Axon pCLAMP Software
How to Create Customized Command Waveforms Using the pCLAMP Software
The Use of Sequencing Keys, User List, and Stimulus File with pCLAMP Software
Synchronizing Electrophysiology and Imaging Solution with Axon pCLAMP and MetaMorph Software
Online Statistics, Membrane Test Between Sweeps in Clampex and Analysis of Synaptic Events with the Clampfit™ Data Analysis
Use of the Axoporator 800A for Single-cell Electroporation for Transfection and Dye-labeling
Using the Axoclamp 900A for Two-Electrode Voltage-Clamp of Xenopus Oocytes Expressing Ion Channels
Writing Long-Term Potentiation and Depression Protocols and the Use of Filters in Data Acquisition and the Clampfit Application
Series Resistance Compensated or Not
Using Electrophysiological Studies to Accelerate Mechanistic Study in Reception and Transmission
Update and Hardware Choices for Optogenetics Considerations for Synchronized Light Patterning
Investigations of the Effects of Amyloid-Beta Proteins on hSlo1.1, a BK Channel, in a Xenopus Oocyte Model
Nanopores-Electronic Tools for Single-Molecule Biophysics and Bio-Nanotechnologies
Axon Amplifiers and pCLAMP Software-key Features Reviews (Chinese version)
Basic Single Channel Analysis Using Clampfit
Action Potential Analysis in Clampfit Module
A Walkthrough of the Protocol Editor in the pCLAMP Data Acquisition Module
A Walkthrough of Protocol Editor in pCLAMP (Chinese version)
Axon Instruments Patch-Clamp Amplifiers
Headstages
| Description | Details | Part Number |
| Axoclamp 900A Headstage HS-9A X0.1U | x0.1 headstage | 1-2950-0359 |
| Axoclamp 900A Headstage HS-9A X1U | x1 headstage | 1-2950-0360 |
| Axoclamp 900A Headstage HS-9A X10U | x10 headstage | 1-2950-0361 |
| Axoclamp 900A Headstage VG-9A X10U | x10 virtual ground headstage | 1-2950-0362 |
| Axoclamp 900A Headstage VG-9A X100U | x100 virtual ground headstage | 1-2950-0363 |
| MultiClamp 700B Headstage CV-7B | Patch-clamp headstage | 1-CV-7B |
| MultiClamp 700B Headstage CV-7B/BL | Bilayer headstage | 1-CV-7B/BL |
| MultiClamp 700B Headstage CV-7B/EC | Electrochemistry headstage | 1-CV-7B/EC |
Electrode holders, adapters, and holder components
| Description | Details | Part Number |
| Electrode Holder for U-Type Headstages | Fits glass pipettes with outer diameter of 1.0 - 1.7 mm | 1-HL-U |
| Electrode Holder Replacement Caps | Set of 2 polycarbonate caps for HL-U holders | 1-HL-CAP |
| Cone Washers 1.1mm ID | Set of 10 orange cone washers for HL-U holders, fit glass with outer diameter of 1.0 - 1.1 mm | 1-HLC-11 |
| Cone Washers 1.3mm ID | Set of 10 orange cone washers for HL-U holders, fit glass with outer diameter of 1.1 - 1.3 mm | 1-HLC-13 |
| Cone Washers 1.5mm ID | Set of 10 orange cone washers for HL-U holders, fit glass with outer diameter of 1.3 - 1.5 mm | 1-HLC-15 |
| Cone Washers 1.7mm ID | Set of 10 orange cone washers for HL-U holders, fit glass with outer diameter of 1.5 - 1.7 mm | 1-HLC-17 |
| Pins 1mm for HL-U Holders | Set of 3 brass pins for HL-U holders, 1mm | 1-HLP-U |
| 2mm Plugs with Solder Cups | Set of 5 general purpose gold plugs, 2mm, with solder cups | 1-HLP-0 |
| Silver Wire | Set of 5 Ag wires, 0.25mm diameter, 50mm long | 1-HLA-005 |
| Silicone Tubing for Silver Wire | 1mm ID x 70mm Long Silicone Tubing | 1-HLT-70 |
| Silver/Silver Chloride Pellet Assemblies | Set of 3 Ag/AgCl pellet assemblies | 1-HLA-003 |
| Adapter For BNC Holders To U-Type Headstages | Connects BNC holders to CV and HS headstages with threaded collets (U-type) | 1-HLB-U |
| Right-Angle Adapter for HL-U Electrode Holders | Fits CV and HS headstages with threaded collets (U-type) | 1-HLR-U |
Model Cells
| Description | Details | Part Number |
| Model Cell for Oocytes | Axoclamp/ GeneClamp model cell for oocytes. Connects to U-type HS series headstages | 1-MCO-2U |
| Model Cell for TEVC / DSEVC | Axoclamp/ GeneClamp model cell for two-electrode voltage clamp/ discontinuous single-electrode voltage-clamp conditions. Connects to U-type HS series headstages | 1-CLAMP-1U |
| Model Cell for Whole Cell/ Single Channels | Axopatch/ GeneClamp/ MultiClamp model cell for whole-cell / single-channel patch-clamp conditions. Connects to U-type CV series headstages | 1-PATCH-1U |
| Model Cell for Bilayers | Axopatch/ GeneClamp/ MultiClamp model cell for bilayer conditions. Connects to U-type CV series headstages | 1-MCB-1U |
Cables
| Description | Details | Part Number |
| Cable To Connect Axoclamp 2 Headstages To Axoclamp 900A Amplifier | Allows Axoclamp 2 headstages (HS-2, VG-2) to be used on Axoclamp 900A Amplifiers | 1-2100-0934 |
Miscellaneous
| Description | Details | Part Number |
| SoftPanel Amplifier Control Unit | Provides physical knob and button control for computer-controlled Axoclamp 900-series and MultiClamp 700-series amplifiers. Requires a USB connection. | 1-SOFTPANEL (USB) |
| Remote Buzz For Axoclamp 900A | Hand-held buzz duration control for Axoclamp 900A Amplifier (1-50ms) | 1-2950-0366 |
| Silver/Silver Chloride Pellet Assemblies | Set of 3 Ag/AgCl pellet assembly and Ag wire | 1-HLA-003 |
Related Products & Services of Axon Instruments Patch-Clamp Amplifiers
Featured Applications
Current Clamp Amplifier
Current-clamp is a method used to measure the resulting membrane potential (voltage) from an…
Read More
Ion Channels
An ion channel is a group of proteins that form a pore across the lipid bilayer of a cell. Each…
Read More
Patch Clamp
The patch-clamp technique involves a glass micropipette forming a tight gigaohm (GΩ) seal with the…
Read More
Series Resistance Compensation
Series resistance is the sum of all resistances between the amplifier and the inside of the cell…
Read More
Single Channel Recording
The patch-clamp technique involves a glass micropipette forming a tight gigaohm seal with the cell…
Read More
Voltage Clamp Amplifier
In an experiment using the voltage-clamp method, the investigator controls the membrane voltage in…
Read More
Whole Cell Recording
The whole cell patch-clamp technique involves a glass micropipette forming a tight gigaohm (GΩ)…
Read MoreReady to get started?
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