The PUL-1000 is a microprocessor controlled, four-stage, horizontal puller for making glass micropipettes or microelectrodes. Here we will see how to load a piece of glass into the carriage.

The PUL-1000 is a microprocessor controlled, four-stage, horizontal puller for making glass micropipettes or microelectrodes. We will show you how to run a glass softening test.

Let’s look at the PUL-1000, a microprocessor controlled, four-stage, horizontal puller for making glass micropipettes or microelectrodes. Here we will examine the design of the unit.

WPI pre-pulled pipettes (MicroTips) are a popular choice for pharmaceutical companies carrying out CCIT (Closed Container Integrity Testing). Each MicroTip is individually tested and inspected and can be shipped with a certificate of compliance.

The system depicted includes components often favored by researchers:

1. MICRO-ePUMP Pneumatic PicoPump with built in MICRO-ePORE™ Cell Penetrator to facilitate microinjections
2. SU-P1000 Micropipette Puller
3. M4C Stand
4. M3301R Micromanipulator
5. PZMTIII Microscope with Optional Lighted Base with Articulating Mirror and optional PRO-300 HDS Camera and View Screen
6. E2XX  Micropipette Storage Jar
7. Z-MOLDS Microinjection and Transplantation Molds
8. 14003-G Vannas spring scissors
9. Glass Capillaries
10. 77020 Glass Tweezers
11. FluoroDish Optical Grade Glass Bottom Culture Dishes

World Precision Instruments (WPI) offers a broad range of research instruments for zebrafish (Danio Rerio) research, from the time the genetics of the subject are modified through the point where the physiological effects of the change are monitored. Whether researchers are performing microinjection or making cardiovascular measurements, the WPI product line includes instruments for research on oocytes, embryos, larvae and adult zebrafish.

The PV850 Injector is designed to simplify intracellular injection and a variety of other microinjection tasks. The PV850 uses regulated air pressure for injecting cells with fluid. Injected volumes range from picoliters to nanoliters. The port supplies positive pressure for high-pressure ejection maximum of 87 PSI.

The PV850 Injector is designed to simplify intracellular injection and a variety of other microinjection tasks. The PV850 uses regulated air pressure for injecting cells with fluid. Injected volumes range from picoliters to nanoliters. The port supplies positive pressure for high-pressure ejection maximum of 8 7PSI.

Designed to simplify intracellular injection and a variety of other micro­in­jec­tion tasks, WPI’s PicoPumps (PV830 and PV820) use precisely regulated pres­sures for se­cur­ing cells and injecting them with fluid. Injected volumes range from picoliters to nanoliters. Separate ports supply positive and negative pressure—pos­i­tive pressure for high-pressure ejection, and suction for supporting the cell or for filling the pipette from the tip. In this quick series, you can see how to setup a PicoPump.

The UMP3 UltraMicroPump is easy to configure using the SMARTouch interface. It is pre-programmed for popular microsyringes and allows for user-defined syringe parameters, too. This ensures nearly universal compatibility. You can control up to two pumps, either simultaneously or independently, and the optional foot switch means hands-free operation. You can instantly verify actual injection volume on the graphical display. You can even use the touch screen while wearing gloves.

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.

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.

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).

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.

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.

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.

In this video you'll see how to replace the gasket in a >Nanoliter2010. 

NOTE: NANOLITER2010 was replaced by the NANOLITER2020

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.

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.

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.

WPI's Nanoliter 2010 Microinjection Pump is ideal for many applications, including zebrafish, xenopus oocytes and drosophila. MICRO4, an optional microprocessor-based controller, can provide an "intelligent" and easy-to-use interface to up to four Nanoliter Injectors. Operating parameters are set with the membrane key-pad and LCD display.

Watch how researchers from the University of Chicago inject adult zebrafish using a 10μl NanoFil microsyringe controlled by a Micro4 controller and UltraMicroPump III (UMP3-1 includes one UMP3 pump and a Micro4 contro

Chiara Cianciolo Cosentino, at the University of Pittsburgh, describes how she uses intravenous microinjections of zebrafish larvae to study acute kidney injury in this JoVE video. You can watch this video on JoVE. WPI equipment shown in this video includes: