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

Laboratory Equipment Blog

  1. 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 outer
  2. June 19, 2015
    Surgical instruments for dissecting come in a variety of patterns, types, shapes and sizes. Choosing the correct one for your application will improve outcome and reduce the frustration of trying to use an inappropriate tool. Choosing a Set of Forceps Ceramic Forceps Ceramic contains no metal. So, ceramic forceps will not leave any trace metal residue on tissue. This is especially useful in forensic science research. Ceramic is not electrically conductive, so it can be used for handling gels in an electrophoresis bath. Ceramic's corrosion resistance allows its use in highly corrosive solutions. For example, it could be used to clean quartz cover glass or lithographic produced chip sensors in an acid solution without damaging the forceps. Ceramic's low heat conductivity and high heat resistance allow it to hold parts in a flame for sterilizing or fabricating. Although the flame with eventually reduce the strength of the ceramic ti
  3. Surgical Instrument Care and Handling
    June 19, 2015
    The proper care and handling of your valuable surgical instruments will improve their longevity and function. Choose a protocol appropriate for your environment from the cleaning techniques below. See the videos here. RINSING Immediately after use, rinse instruments under warm or cool running water to remove all blood, body fluids and tissue. Dried soils may damage the instrument surface and make cleaning very difficult. Do not use hot water as this will coagulate proteinous substances. CLEANING TECHNIQUES Time, temperature, and agitation play important roles in the cleaning process. Time — the efficiency of cleaning chemicals is often time dependant Temperature — higher temperature cleaning solutions result in better cleaning Agitation — whether manual or ultrasonic, it is helpful in loo
  4. When a Bigger Bolus is Better
    June 12, 2015
    First, let's consider volumes. A milliliter (mL) is one thousandth the volume of a liter (L) or 10-3L A microliter (µL) is one thousandth the volume of a mL (10-6L) A nanoliter (nL) is one thousandth the volume of a µL (10-9L) A picoliter (pL) is one thousandth the volume of a nL (10-12L) This is graphically represented at the right. Notice that the mL is one trillion times larger than the picoliter. The table (right) shows that the side of a cube with a volume of 1mL is 1cm long. Likewise, the side of a cube with a volume of 1pL is 10µm long. Just for comparison, it shows that the diameter of a sphere with a volume of 1mL is 1.24cm, and the volume of a sphere with a volume of 1pL is 12.4µm. With these volume comparisons in
  5. Born Before the Test Tube Baby
    May 14, 2015
    One of WPI's articles was posted on ALN's site. If you are interested in the history of surgical instruments, take a look at Advancements in Surgery Through the Ages. But, there's more. We ran out of space to tell you about the barber surgeons. Read the exclusive here! Surgery in the Middle Ages It’s hard to imagine that surgery wasn’t always the prestigious profession it is today. But, in medieval Europe, physicians didn’t practice surgery, because such things were handled by lesser men… or even by women. Often, the local barber took care of minor surgeries. He would travel from town to town, and you could stop in to get a haircut and shave, and at the same time get a tooth pulled or have a minor surgery. In the 1500s, women were prohibited from bec
  6. Light Engine - Turning Light into Science
    April 20, 2015
    If you have seen a rainbow, you have seen the visible part of the light spectrum spread out. Each color we see is actually a different wavelength of light. In scientific applications, we are often interested in only one or two wavelengths of light. For example, a muscle tissue can be stained with Indo-1 or Fluo-4 causing intra-cellular calcium to fluoresce when excited by the appropriate wavelength of light. Or, a neuronal cell can be stained with di-4-ANEPPS and di-8-ANEPPS, causing a fluorescent signal that corresponds with the firing of an action potential. WPI’s new SI-BF-100 Biofluorometer is a light engine that generates quick pulses of light in one (or
  7. Setting Up Your Automated TEER Measurement Robot
    April 14, 2015
    Now that your REMS system has arrived, are you trying to figure out how to set it up? Check out this 5-minute video where we show you how, step-by-step. More Info
  8. Using WPI's PUL-1000 Micropipette Puller
    March 06, 2015
    World Precision Instruments' PUL-1000 is a microprocessor controlled, four-stage, horizontal puller for making glass micropipettes or microelectrodes used in intracellular recording, microperfusion and microinjection. It offers programmable sequences of up to four steps with complete control over the heating, force, movement and cooling time. This allows graduated cycles for a variety of applications. PUL-1000 can produce pipettes with tip diameters from less than 0.1µm to 10+ µm.  More Info
  9. FAQs about TEER Measurement
    February 02, 2015
    Here are some frequently asked questions (FAQ) about TEER measurement using an EVOM2. Are the electrical resistance and transepithelial electrical resistance (TEER) the same thing? What is an EndOhm chamber? How is an EVOM2 used for measuring confluence? Why use an EndOhm instead of a STX? How do I clean my electrode? What about electrode preconditioning? Can you give me a simple data acquisition system for TEER? What are the TEER measurement challenges that I may encounter? Can you suggest some experimental parameters that can be controlled to obtain consistent TEER results?
  10. Low Flow Dampening Kit for a Pump
    December 08, 2014
    Parts List Qty Part Number Description 2 13163 MALE LUER FITTING 5/32 2 13161 MALE LUER FITTING FOR 3/32 2 13157
Copyright © World Precision Instruments. All rights reserved.