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Blog
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June 16, 2020
[by Alec Dickson]
WPI's FluoroDish™ tissue culture dishes provide exceptional imaging quality for many applications requiring the use of inverted microscopes such as high-resolution image analysis, microinjection and electrophysical recording of fluorescent-tagged cells. We have a 50 mm diameter dish and two types of 35 mm diameter dishes.
Better Optical Properties than PolycarbonateEach WPI dish has a flat (0.17mm±0.01mm thick), optical quality glass bottom, allowing...more
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June 15, 2020
[by Tiana Riggi]
UV/VIS/NIR absorbance spectroscopy is governed by Beer's Law, where the absorbance signal is proportional to chemical concentration, light path length and the compound’s specific molar absorption coefficient. Typical optical pathlengths of cuvettes and flow cells are between 0.1 cm and 10 cm. Longer pathlengths are difficult to achieve due to mechanical constraints. WPI solved this problem with the LWCC Liquid Waveguide Capillary Cells. LWCCs are fiber optic flow cells that combine an increased optical pathlength range from 10–500 cm with small sample volumes ranging from 2.4 µL to about 3 mL. Compared with a standard 1 cm cell you can expect to achieve a 10-500 fold increase in sensitivity.
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June 09, 2020
[by Nikki Scafa]
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.
Before we begin:
- Make sure you have the following items.
- Your sensor must be polarized for the appropriate length of time.
- Your solutions are prepared as described in the manual. (NOTE: Here we will show an item checklist slide (below) before continuing the video.)
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May 21, 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.
...more
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May 15, 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.
1. It has an intuitive Touchscreen Display
Providing users with vital feedback during experimental measurements, the EVOM3’s large touch screen offers a range of informational views. The new graphical displays for trend analysis and measurement values helps you deliver a simple, stepwise methodology during experimental measurements. The touch screen interface...more
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May 15, 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...more
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April 13, 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...more
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April 10, 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...more
- Convenient internal pressure source
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March 02, 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...more
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February 25, 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, ...more