1. All Topics
  2. Videos
  3. 900A Micropressure System
  4. Product Information
  5. News

Product Information

  1. How Do I Select Appropriate Surgical Instruments for My Application?
    March 13, 2018
    When you are selecting surgical instruments for a procedure, here are a few key points to consider What procedure are you performing? Published research papers usually indicate which instruments other researchers have used for similar procedures. The correct surgical instrument for a particular procedure makes a difference on the outcome of that technique. What is the size of your subject? An instrument that is perfect for a 200­–300 g rat (about 22–25 cm long) may not be the best choice for a neo-natal mouse of about 15 g (about 1–2.5 cm long). How often will the instrument be used? If you perform more than 100 cuts per day, a pair of titanium scissors or a pair of scissors with tungsten carbide inserts would be worth considering. They stay sharp longer.
  2. Replacing the Gasket in a Nanoliter2010
    February 13, 2018
    In this video you'll see how to replace the gasket in a Nanoliter2010.    More Info If you have questions, contact us at 866.606.1974 (US Toll Free) or at wpi@wpiinc.com. To request a formal quote, please email us at quotes@wpiinc.com.
  3. Absorbance Detection
    June 27, 2017
    Absorption of light correlates to the energy of a photon that is taken-up by electrons of the substance atom. The electromagnetic energy is transformed into internal energy of the absorbent substance. The absorbance of a substance quantifies how much of the incident light is absorbed by it (instead of being reflected or refracted). Precise measurements of the absorbance at many wavelengths allow the identification of a substance via absorption spectroscopy, where a sample is illuminated from one side, and the intensity of the light that exits from the sample in every direction is measured (see Fig. 1). A few examples of absorption are ultraviolet–visible (UV-Vis) spectroscopy or infrared (IR) spectroscopy.
  4. Using the Biofluorometer with Muscle Physiology Research systems
    June 27, 2017
    The use of fluorescence for sensing and imaging of the cellular signaling pathways has emerged as an indispensable tool in modern physiology, providing dynamic information of quantity and localization of the molecules of interest. Using appropriate indicator dyes, molecules alter their fluorescent characteristics in response to ion binding or membrane integration, so that the optical signal from the indicator can be measured to monitor the amplitude and the time course of various metal ions like Na+, K+, Mg2+ and Ca2+, as well as pH and membrane potential, in cellular compartments. A specific target molecule like Ca2+ is responsible for many physiological functions, such as neurotransmitter release, fertilization and ion channel functions. Studying the cellular channel functions is directly related to the transient increase in the myoplasmic free calcium concentration (Δ[Ca2+
  5. Ca2+ Detection in Muscle Tissue using Fluorescence Spectroscopy
    June 27, 2017
    The use of fluorescent probes in cell physiology has emerged as indispensable tool in the analysis of cell functioning over recent years. The physics underlying fluorescence is illustrated by the electronic-state diagram (so-called Jablonski diagram, see Fig. 1), showing the three-stage process to create the fluorescent signal (Excitation - Excited/State Lifetime - Fluorescence Emission) in a fluorophore/indicator and simplified described below. Fig. 1– Jablonski diagram illustrating the processes of fluorescence by absorption of higher photon energy by a fluorophore and subsequent emission of lower photon energy, resulting i
  6. Motorized Stereotaxic Frame Requires No Computer Control
    February 10, 2016
    When precision and repeatability of motion are critical, WPI's MTM-3 Motorized Stereotaxic Frame outperforms manual stereotaxic frame models, and it greatly reduces human error. The motorized axis of the MTM-3 provide precise, controlled, 3-dimensional placement of any probe or accessory within the working space of a stereotaxic frame. No computer is required. The MTM-3 supplied with WPI stereotaxic frames is also compatible with standard stereotaxic frames and may be adapted to existing frames of other manufacturers. Dual manipulator arm motorized systems are also available. MTM-3 Stereotaxic Frame Introduction This videos gives a 2 minute overview of the new frame. Why Get the MTM-3 Stereotaxic Frame for your Laboratory? For more inf
  7. Monitor the Growth of Epithelial Cells in Vitro Manually
    November 20, 2015
    For small batches of cell culture Are you ready to perform experiments involving a cultured cell monolayer? If your monolayer has not reached confluence, you may have holes or gaps in the monolayer that would prevent collection of valid experimental data. When confluence is reached, the electrical resistance across the monolayer peaks and then plateaus. The EVOM2 meter was designed specifically for this application. The EVOM2 is the ideal meter for use when you are making manual TEER measurements on small batches of cell cultures and do not require a high throughput system. EVOM2 - Perfect for TEER The EVOM2 was designed to measure TEER resistance without damaging the epithelial cells. It passes a constant curre
  8. Data Acquisition Designed for Muscle Physiology Pre-Clinical Trials
    October 20, 2015
    LabTrax 8/16 hardware combined with MDAC software is an excellent choice for WPI's SI-H line of muscle physiology products like the SI-MT Muscle Platform, SI-CTS Cell Tester and SI-HTB Horizontal Tissue Baths. This data acquisition system is ideal for testing physiological characteristics like the contractile and elastic properties of different tissues in various conditions like isometric, anisometric or isotonic states. This data acquisition system was designed with the muscle researcher in mind, because the knowledge of physiological characteristics of muscles is critical when quantifying the beneficial or adverse effects of a stimulus (like a pharmaceutical drug) on muscle function in pre-clinical studie
  9. Choosing a Pump for your Fluid Handling Application
    October 04, 2015
    The type of pump you choose for your fluid handling will largely depend on your laboratory application. In this article, we will compare the popular pump types. Peristaltic Pumps A peristaltic pump has a series of rollers that rotate around the edge of the pump head. A flexible tubing is threaded around the rollers and pressed up tight next to them, pinching the tubing where it contacts a roller. As the rollers rotate around the head, the fluid in the tubing moves from the input to the output. The rate of head rotation and the size of the tubing determine the volume of fluid that can be pumped. The volume that can be pumped is limited only by the volume of the input source. Syringe Pumps A syringe pump consists of a syringe attached to a motor driven pusher b
  10. Application Kits for Use with the NanoFil for Microinjection
    June 25, 2015
      Application kits are specially designed for eye research for injecting retinal pigment epithelium (RPE) and for intraocular (IO) injections. In addition, these kits may be used for brain injection in mice. They need to be used with a NanoFil syringe and UMPIII to achieve accurate, repetitive and oil-free injection in the submicroliter range. Each kit includes two pieces of Silflex tubing (one for a spare), a holder assembly, spare gaskets, and an assortment of four tips - blunt for the RPE kit and beveled tips for the IO kit. Each kit comes with one each of 33, 34, 35 and 36 gauge tips so that first time users can find the best size for their application.The Silflex tubing is the most critical component of the kit. This 35cm long, flexible tubing has a very precise oute
Copyright © World Precision Instruments. All rights reserved.