Search "connectors"

Here are some frequently asked questions (FAQ) about Metal Microelectrodes.

Choosing the right parts for your application is critical. Below you will find a table comparing many common parts to help you determine just what you need.

Cables

Trusted Partner for Reliable Measurements

WPI is dedicated to being your preferred OEM supplier for optical fiber products by offering the following:

• Quality Products and Expert Service – After over 50 years in business, we’ve learned that it takes more to be your partner than just great quality and fair prices. We have implemented measures such as our ISO-9001:2015 certification throughout our home office and production facility to improve our efficiency and ensure quality. We also have invested in six sigma certifications with continuing effort to improve processes within the organization.
• Personal Service – A dedicated OEM account manager and a seasoned optical engineering team with over 20 years of technical design experience make all the difference for our customers.
• Cost Effective Solutions – Quality optical fiber products...more

Suction electrodes are used with muscle research systems to record the action potentials from the stretch receptors at the same time that the length and tension of the muscle are recorded.

 Materials

• soldering iron with solder
• wire strippers
• wooden-handled dissecting pin
• alcohol burner
• can or tube of contact or plastic cement
• fine flat file
• emery cloth
• electrical tape
• popsicle stick
• two pieces of chlorided silver wire (0.005” dia, 5” long)
  (See Chloriding Silver Wire.)
• three feet of shielded, two-conductor, insulated cable
• three color-codedconnectors that will mate to the connectors...more

In any laboratory, having key lab supplies is almost as important as having the major equipment. Choosing a reputable supplier of these necessary supplies is as important as having quality laboratory supplies when you need them. WPI wants to be your partner in early drug discovery, and we stock a wide variety of lab supplies, many of which can ship the same business day. Having a variety of lab supplies ready to ship makes us a dependable research partner. Here are some of the popular supplies that we keep on hand to meet your needs for your upcoming experiment...more

Designed to simplify intracellular injection and a variety of other micro­in­jec­tion tasks, WPI’s PicoPumps (PV830 and PV820) use precisely regulated pres­sures for se­cur­ing cells and injecting them with fluid. Injected volumes range from picoliters to nanoliters. Separate ports supply positive and negative pressure—pos­i­tive pressure for high-pressure ejection, and suction for supporting the cell or for filling the pipette from the tip. In this quick series, you can see how to setup a PicoPump.

1. What's Included with a PV Pump

In this first video (#1) you can see all the components of the system as they unpack the system.

 ...more

An amplifier, in simplest terms, is an electronic device that magnifies an input signal. However, the way an amplifier is designed to handle noise and bandwidth limitations greatly affects the quality and sustainability of the final output signal.

Defining Terms

To knowledgeably discuss amplifiers, let’s define a few terms.

• Gain – The gain is the multiplier defining how much the amplitude of an input signal is increased. A signal with an X1 gain is not amplified. An X10 gain produces an output signal ten times greater than the input signal.
• Noise – Any unwanted signal fluctuations are called noise. While noise can also result from external sources, for the purpose of this discussion, we are primarily concerned with the noise resulting from the inner workings of the electronic device, our amplifier. This intrinsic noise is called shot (or schott) noise.
• Signal to Noise Ratio (SNR) – The ratio of the output signal...more

Download a PDF version of the Biosensor Specifications Sheet here.

WPI offers a range of biosensors for monitoring nitric oxide, hydrogen peroxide, oxygen and hydrogen sulfide. Specifications for these sensors are detailed below.

• The macrosensors are 2mm "wet" sensors. These sensors are installed in a metal "sleeve" that looks like a tiny soda straw.The sleeve has a gas permeable membrane at the tip, and it is filled with an electrolyte. When it is immersed in a solution, the gas in solution (for example, nitric oxide) diffuses through the membrane, and the sensor measures it.
• The microsensors are "dry" sensors. Most microsensors monitor nitric oxide, and there is also a hydrogen peroxide microsensor...more