An Inexpensive Recirculating Water Vacuum Pump for the Chemistry Laboratory

An inexpensive, efficient method for regular egg collection from zebrafish in a recirculating system.

Zebrafish in our laboratory are usually bred by removing the fish from the recirculating aquatic system and placing them into 1-2 L spawning tanks. These spawning tanks consist of a bottom reservoir, a lid, and an insert that fits in closely into the bottom reservoir. When the fish breed, the eggs fall through holes of the insert and into the reservoir, thus preventing them from being cannibali...

Emergency power source for an ion vacuum pump.

This note describes a simple high-voltage dc generator which serves as an emergency power source for an ion vacuum pump during power interruptions, or failure of the main supply.

Three Decades of Continuous Records for Biophysical Chemistry Laboratory (BCL)

The Biophysical Chemistry Laboratory (BCL) was established in 1986 at Institute of Biochemistry and Biophysics (IBB), University of Tehran as the main base and the mother of biophysical chemistry in Iran. BCL is a famous worldwide research lab in the area of thermodynamics of protein denaturation and biomacromolecular interaction. The first student that joined BCL was MSc student in 1987, while...

Vacuum Gauge to Vacuum Pump Valve

an iranian simple, inexpensive and programmable motor – driven treadmill for exercising small laboratory rodents

nowadays, research on exercise physiology has developed. many of studies try to discover body responses or adaptations to exercise training or physical activity. in many cases, human beings are not suitable models to study these mechanisms in vivo due to ethical and legal limitations. laboratory animals especially mice and rats are appropriate models for these researches. treadmill is an excell...