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Blog
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June 05, 2023
Cyanoacrylate adhesives have been on the market since 1958. Most industrial or household grade cyanoacrylate (like Super Glue) are made of shorter alkyl chain derivatives such as methyl or ethyl cyanoacrylate (WPI #7341 and #7342). They are very useful for temporarily holding tissues such as mounting specimens for microtome sectioning. A family of adhesives containing octyl cyanoacrylate, a plasticizer and stabilizer, was developed In the 1990's (one of them approved by FDA for human use). When bonding to tissue, these new adhesives are four times stronger and less toxic than butyl cyanoacrylate. Compared with the traditional suture, the new super adhesive has several advantages. Cyanoacrylates Not Suitable for Live Animals...more
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May 31, 2023
In a life science laboratory, quality surgical scissors are indispensable for dissection, suturing, small animal surgeries, tissue preparation, and more. The variety of surgical scissors can be overwhelming. To help you choose which surgical scissors are right for your application, let’s look at some of our most popular ring handled surgical scissors and their intended uses...more
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May 25, 2023
If the EVOM™ Auto software switches from Resistance to TEER mode while you are selecting menu options, here's a quick tip:
Be careful when selecting Resistance mode, do not tap the background window and do not click on the side arrows.
Tapping the background window will switch you to TEER mode.
Instead, tap an option on the forefront square window to stay in Resistance mode...more
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May 16, 2023
Surgical forceps or surgical tweezers are common surgical instruments, but there's a large variety of tweezers to choose from. In general forceps can be grouped as thumb forceps (frequently called surgical tweezers, gripping forceps, non-locking forceps or pinning forceps) or ring forceps (also called hemostats, hemostatic forceps and locking forceps). Thumb forceps are spring forceps used by compression between your thumb and forefinger and are used for grasping, holding or manipulating tissue or objects. They are non-ratchet style. Hemostatic forceps are hinged forceps that look more like scissors with ring handles. Focusing on thumb forceps, they can be further categorized as tissue forceps and dressing forceps. Let's explore the differences between tissue forceps and dressing forceps for surgical applications and research laboratories.
Tissue Forceps
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May 02, 2023
The EVOM™ Auto automates measurements of TEER in epithelial or endothelial monolayers cultured on high throughput screening 96-well plates utilizing our innovative EVOM™ technology, qualitatively measuring cell monolayer health and quantitatively measuring cell confluence by determining an increase or a plateau in tissue resistance.
The video below shows details the features and functions of the Experiment window on the EVOM™ Auto:
After you have defined a sequence, you can begin running an experiment.
The Experiment window shows a representation of the plate on the left side of the window.
On the right side of the window, you see these...more
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May 01, 2023
Improved User Experience
EVOM™ Auto is the latest generation of WPI’s automated transepithelial or transendothelial electrical resistance (TEER) measurement system. Using the same proven technology in the EVOM™ Manual and REMS, combined with a new multi-electrode array, software interface and control system, it delivers our fastest workflow solution while improving TEER measurement accuracy: - Faster throughput – read a 96-well plate in under 3.5 minutes (A 2-rinse cycle can be completed in 7 minutes, almost halving the time compared to a REMS)
- Automatic sample averaging improves accuracy and stability
- Compact size for easy set up and operation inside in a hood or incubator
- Wireless control of the autosampler
- Smart user interface and web...more
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April 27, 2023
The EVOM™ Auto automates measurements of TEER in epithelial or endothelial monolayers cultured on high throughput screening 96-well plates utilizing our innovative EVOM™ technology, qualitatively measuring cell monolayer health and quantitatively measuring cell confluence by determining an increase or a plateau in tissue resistance.
The video below shows you how to schedule an operation on the EVOM™ Auto:
The data acquisition functions of the EVOM™ Auto may be repeated at a defined time interval when multiple scans of a plate are needed. The scheduled operations are displayed on the right side of the Experiment window in the Current State area. The control buttons for scheduling...more
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April 25, 2023
The EVOM™ Auto automates measurements of TEER in epithelial or endothelial monolayers cultured on high throughput screening 96-well plates utilizing our innovative EVOM technology, qualitatively measuring cell monolayer health and quantitatively measuring cell confluence by determining an increase or a plateau in tissue resistance.
The video below shows you how to stabilize the electrode array on the EVOM™ Auto:
First, select Maintenance on the main menu. To stabilize, press the + or - buttons to set the timer to the desired time in minutes in the stablize frame.
Next, Select the radio button for the rinse station containing the buffer solution. Then, fill the appropriate rinse station with the buffer solution...more
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April 20, 2023
The EVOM™ Auto automates measurements of TEER in epithelial or endothelial monolayers cultured on high throughput screening 96-well plates utilizing our innovative EVOM™ technology, qualitatively measuring cell monolayer health and quantitatively measuring cell confluence by determining an increase or a plateau in tissue resistance.
The video below shows you how to chloride the electrode array on the EVOM™ Auto:
To chloride the electrode array, select Maintenance on the main menu.
Four control buttons are located at the bottom of this window:
- Go Home- Positions the electrode array in the home position.
- Calibrate- Calibrates the sensor head using the internal...more
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April 18, 2023
The EVOM™ Auto automates measurements of TEER in epithelial or endothelial monolayers cultured on high throughput screening 96-well plates utilizing our innovative EVOM™ technology, qualitatively measuring cell monolayer health and quantitatively measuring cell confluence by determining an increase or a plateau in tissue resistance.
The video below shows you how to create a plate file on the EVOM™ Auto:
1. To Create a measurement sequence, select the Manage Sequence menu from the Home screen. A list of the existing sequences displays, and you may open and edit any existing sequence or select New Sequence to create a new one. If you select New Sequence, a popup allows you to...more