Page 14 - Product Information
- - June 08, 2020
When using a TBR Free Radical Analyzer, accurate measurements of an analyte requires an accurate calibration. The calibration of nitric oxide, hydrogen peroxide and hydrogen sulfide sensors is similar. WPI oxygen and glucose sensors require different methods which will not be discussed here.
- - May 20, 2020
[by Tiana Ruchti]
When you have exact specifications for your fiber optic assemblies, WPI delivers with proprietary qualified optical fibers designed by in-house optical engineers. You can count on superior performance from WPI's spectroscopy products and the published research scientists who design them. When you depend on reliable data for your discoveries, consider WPI's German Optics Department for qualified optical fiber and assemblies.
Here we discuss the process for submitting a request for an optical fiber to match your needs using the WPI optical fiber selection guide. There are five steps.
...more1. Select your fiber material. You will see in the two charts that there are seven fiber materials available. Two of them are exclusive and new to WPI. Once you’ve discovered what spectral range you are working on and the numerical aperture (NA) that you will need, select the fiber material. 2. Select the style of the optical fiber. To simplify the process, we only show a couple. - - May 14, 2020
The NEW EVOM3 Epithelial Volt/Ohm Meter delivers improved workflow efficiency, increased stability and more repeatable measurements than traditional Trans Epithelial Electrical Resistance (TEER) meters. Here are seven things you will love about the new EVOM3.
- - May 14, 2020
The UltraMicroPump3 is a versatile microinjection syringe pump designed to support the needs of a busy lab. The UMP3 Microinjector is suitable for delivery of media from nanoliters to milliliters. the UMP3 injecotor’s user interface and system design enables delivery of highly accurate and repeatable injections. The choice for thousands of scientists, it is widely cited in research papers.
Intuitive Touchscreen Display for Easy SetupThe SMARTouch controller has an intuitive touch screen interface and an easy-to-use menu for quick configuration of the syringe size, volumes and flow rates. The total system calibration is designed to eliminate human errors and reduce experimental processing time. Configuration can be saved and subsequently imported as a script via the USB port.
Control 2 Injectors Simultaneously
The SMARTouch controller can independently control two microinjection syringe pumps (microinjectors) simultaneously, providing complete freedom in the experimental procedures...more
- - April 12, 2020
Epithelial and endothelial cells are known for their barrier function like selective permeability. Lung tissue is comprised of epithelial cellular layers, residing adjacent to endothelial layers and allowing exchange of oxygen and carbon dioxide between lung and blood. Currently, the biomedical research community’s major focus area is to understand the details of the infection caused by this novel coronavirus (2019-nCoV) or by similar viruses. This new virus can disrupt the lung’s normal cleaning ability to get rid of foreign particles in the lung, and the selective permeability or barrier function of the lung may become severely impaired. The adverse physiological effect may be sustained once the inflammatory cascade is initiated.
- - April 09, 2020
Do you need a precision microinjector with an integrated pressure source for injections in the picoliter range? WPI’s new MICRO-ePUMP, which is comparable to the Ependorf Femtojet, is a portable solution for injecting DNA, RNA and proteins, as well as pre- and post- implantation in embryos. Whether you are doing disease modeling with zebrafish or viral research for SARS-CoV2, the MICRO-ePUMP has much to offer. Here are eight good reasons to choose the MICRO-ePUMP for your applications.- Convenient internal pressure source
The convenient internal pressure source is designed to simplify intracellular injection. With the carefully regulated internal pressure source, there is no need of an external air supply. - Intuitive User Interface
The touchscreen with simplified user interface and one button controller makes it easy for you to change parameters according to the microinjection application. You can navigate through the options and parameters easily with touch screen and single control...more
- Convenient internal pressure source
- - March 01, 2020
With the first approved human gene therapy trial in 19891 (Rosenberg, et.al.), gene therapy has come a long way in modern medicine and is making inroads in clinics and the market in general.2,3 2017 was an important year for gene therapy when Luxurna, the first human gene therapy drug for an inherited retinal dystrophy, was approved by Food and Drug Administration (USA).4 Now several drugs are undergoing clinical trials. With an estimated $11 billion (USD) market in the next 10 years, both clinical trials and the pharmaceutical industry are expected to benefit immensely from gene therapy.5
With improved use of viral vectors (Adeno-associated virus (AAV), adenovirus, lentivirus, retrovirus, HSV) or non-viral vectors, research and clinical trials on the development of therapeutic genes have witnessed great success. Viral vectors have been employed for the treatment of various diseases such as metabolic, cardiovascular, muscular, hematologic, ophthalmologic and infectious diseases and...more
- - February 24, 2020
Nitric oxide (NO) is an essential signaling molecule and is known to play a significant role in a multitude of physiological systems including the central nervous system (CNS), the cardiovascular system, the gastrointestinal tract, the immune system, and the renal system. 1-5 However, being highly reactive, detection and quantification of NO is very difficult.6,7 It requires a sensor that is sensitive, selective to NO, and easy to calibrate.
WPI’s Free Radical Analyzer (4-channel TBR4100 and single-channel TBR1025) and the LabTrax Data Acquisition System with the options of using nano NO sensors, micro NO sensors, flexible micro sensors, and macro nitric oxide sensors enable amperometric (electrical based) detection of NO dissolved in liquids.
Features & Benefits of the Free Radical Analyzer and Nitric Oxide Detection System
- Rapid response time: < 5 sec enhances detection capability of the highly reactive, short-lived NO molecules
- High sensitivity: ≤2 pA/nM – enables detection...more
- - January 23, 2020
Microinjection is the process of transferring genetic materials into a living cell using glass micropipettes or metal microinjection needles. Glass micropipettes can be of various sizes with tip diameters ranging from 0.1 to 10 µm. DNA or RNA is injected directly into the cell’s nucleus. Microinjection has been successfully used with large frog eggs, mammalian cells, mammalian embryos, plants and tissues. Microinjection has been expensive, can be a slow process and requires skilled personnel, but new technologies are making it even more reliable, repeatable and affordable.
Pronuclear injection, inserting DNA or RNA into the nucleus of a fertilized oocyte to create transgenic organisms, lets researchers study the role of particular genes. This horizontal gene transfer can insert genetic material from the same species or a different one. When using genetic material from different species, a chimera is created. If the genetic material is NOT integrated into the genome of the offspring, it...more
- - December 19, 2019
The purpose of this article is to describe a new cleaning procedure for thoroughly cleaning WPI flowcells, including Liquid Waveguide Capillary Cells (LWCCs), UltraPath flowcells and optical cuvettes. The image (right) shows a 3000 series LWCC with a MiniStar pump and the LWCC injection system placed on top of it.
Preparation of Chemicals
All chemical reagents should be of at least ACS-Grade, preferably HPLC-Grade. This procedure involves the use of caustic and flammable reagents. Consult the manufacturer’s MSDS for necessary safety precautions.
Cleaning Solution #1:
0.5M Potassium Hydroxide in 100% Ethanol (e.g.: 7 g KOH in 250mL EtOH). After thoroughly mixing, filter the solution through a 20µm pore size filter.
Cleaning Solution #2:
100% Methanol, HPLC grade
Cleaning Solution #3:
Ultrapure water, Type I per ASTM D1193-99 or equivalent
NOTE: Grade 1 ultrapure water per ISO 3696 differs significantly from the above classification.
Cleaning Procedure
The preferred method of cleaning...more - - August 20, 2019
Are you looking for a microliter or sub-microliter and high precision syringe that holds needles as small as 36 gauge (G), in addition to having the capability to connect to quartz tubing?
WPI’s NanoFil is the answer. We offer NanoFil syringes with NanoFil needles or the option to connect the NanoFil syringe to quartz tubing to use in research studies, mainly involving sub-microliter volume injections into animal tissues.
- - August 01, 2019
The new WPI MICRO-ePORE™ pinpoint cell penetrator is a simple and versatile system that can be used to facilitate microinjection of a diverse array of compounds and biomolecules into oocytes and pre-implantation stage mammalian embryos. Patent pending Flutter Electrode Technology assists in small, clean, precise membrane penetration without tearing or damaging the membrane. It results in substantially increased viability of embryos. In this quick video, Dr. Pelczar from the Center for Transgenic Models in Switzerland demonstrates the ease of cell penetration using the new MICRO-ePORE™.
Video footage courtesy of Dr. Pawel Pelczar, Head of CTM, University Basel, Switzerland, Center for Transgenic Models (CTM).
In this video UCLA graduate research student Fangtao Chi discusses the benefits of using the MICRO-ePORE™ for penetration of 2-cell stage embryos.
Video footage courtesy of Fangtao Chi, UCLA.
- - July 21, 2019
WPI offers custom fiber optic cables and assemblies. This video show how to create a custom ordering code to designate what you need. If you have any questions about ordering Fiber Optic Cables and Assemblies for your laboratory or application, just give us a call (866-606-1974) or email us at wpi@wpiinc.com.
- - June 18, 2019
The new WPI MICRO-ePORE™ Pinpoint Cell Penetrator is a simple and versatile system that can be used for efficient microinjection of a diverse array of compounds and biomolecules into oocytes and pre-implantation stage mammalian embryos. Patent pending Flutter Electrode Technology assists in small, clean, precise membrane penetration without tearing or damaging the membrane. Here Gabe sets up the system and connects all the components.
Unpacking Your MICRO-ePORE™ System
Connecting Your MICRO-ePORE™ System
Connecting the MICRO-ePORE™ Electrode Holders
- - June 18, 2019
For intracellular dual or differential studies, WPI's Duo773 has separate negative capacity controls and built-in active filtering that allows the precise balancing of time constants for artifact-free differential measurement. It comes complete with two probe headstages, 1015Ω and 1011Ω probes to monitor signals from ion-specific micro-electrodes as well as KCl-filled electrodes. Jim shows you how to safely unpack and properly setup your new Duo773.
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