V&P produces a wide variety of wands and manifolds to aspirate or dispense sterile media, assay buffers and other liquids into standard or deep well  microplates.  We also make manifolds to evaporate liquids.   The wands and manifolds are constructed of rugged clear polycarbonate* or polypropylene (black or white) and stainless steel tubes.  The single bore wands are autoclaveable and come with either tapered or female luer ends.  For sterile dispensing in 96, 96 deep well, 384 and 1536 well microplates see our Dispensing Manifold page.   We also offer polypropylene wands (black) which are organic solvent resistant.  The photo to the right illustrates just a few of our total collection.  Please scroll down the page to see a description of our complete collection of single bore wands and manifolds.

The polycarbonate* manifolds are not autoclaveable and have  female luer connectors.   We also offer polypropylene manifolds (black) which are autoclaveable and resistant to organic solvents like DMSO.   The manifolds have been developed for 24, 48, 96 and 384 well microplates as well for Gen-Probe assay plates and vials. It is very easy to attach these manifolds to an aspiration line by simply cutting off the finger tangs of a 1 to 3 ml plastic syringe then slipping your vacuum line over the syringe barrel and connecting the female Luer on the manifold to the syringe nozzle.   We also make custom manifolds for aspirating deep well plates and micro-centrifuge tubes.

It is very easy to attach these manifolds to an aspiration line by simply cutting off the finger tangs of a 1 to 3 ml plastic syringe then slipping your vacuum line over the syringe barrel and connecting the female Luer on the manifold to the syringe nozzle as shown in the photo on the right.  Another solution is to use Male Luer Lok fittings to connect to the hose system.

We are now providing male Luer Lok fittings with 3 different sized hose barb connectors (5/32" - 4 mm, 3/16" - 4.75 mm and 1/4" - 6.25 mm) at no extra charge with each Luer Lok equipped  manifold and wand we sell.  We do everything we can to make it easy for our customers.

Click here for a list of published articles that cite using the products on this page.

VP 177AD

We make several different styles of dispensing manifolds for microplates.  The economy version shown on the right is compatible with 96 standard and 96 deep well microplates.  It is capable of dispensing sterile media.  Follow this link for more information about the VP 177AD system.

VP 178BJD

The VP 178BJD dispensing manifold shown on the right is mounted in the VP 179A jig for precise X, Y and Z location.   This system provides a simple and stable platform that is capable of filling 96, 96 deep well and 384 well microplates.  It is capable of dispensing sterile media.  Follow this link to the VP 178BJD for more information.

VP 195J

The VP 195J Multi-Spense dispensing manifold is shown on the right filling a 96 deep well microplate.  The plate is manually moved between the two dispensing wands. This system provides a simple and stable platform that is capable of filling 96, 96 deep well and 384 well microplates.  It is capable of dispensing sterile media.  Follow this link to the VP 195J for more information.

VP 178A

We make several different styles of aspirating manifolds for microplates.  The economy version shown on the right is compatible with 96 standard and 96 deep well microplates and is adjustable in the X axis only.  Follow this link for more information about the VP 178A system.

VP 177A

The Z adjustable economy version shown on the right is compatible with 96 standard and 96 deep well microplates and is adjustable in both Z and X axis.  Follow this link for more information about the VP 177A system.

VP 178BJ

The aspirating manifolds shown on the right are all designed to be  mounted in the VP 179A jig for precise and adjustable X, Y and Z location.   This system provides a simple and stable platform that is capable of aspirating 96, 96 deep well and 384 well microplates.  Follow this link to the VP 178BJ for more information.

The center to center needle spacing of the wands and manifolds accommodate all, 96, 384 and 1536 microwell plates as these plates are built to the SBS standards of 9 mm, 4.5 mm and 2.25 mm center to center spacing.  Unfortunately the center to center well spacing on the 24 and 48 well microplates varies between manufactures.  Please check your plate's center to center spacing to make sure it is compatible with the 24 and 48 Manifolds' spacing we offer.

VP 184

VP 185

VP 185L

 **NEW**
VP 185LA

12 channel wand with female luer,
20 gauge needles, 11 mm long, 9 mm center to center spacing
overall wand length =  130 mm (short version)

This wand was designed to fit into the smallest possible space unlike the
VP 185  and VP 185L shown above, this wand has an overall wand length of only  130 mm.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

**NEW**
VP 185BP

VP 187

VP 187A

VP 187B

**NEW**
VP 187BP

VP 187C

**NEW**
VP 187D

384 channel aspiration manifold, jig compatible,
23 gauge needles,  13 mm long, 4.5 mm center to center spacing

384 channel dispense manifold, jig compatible,
23gauge needles, 13 mm long, 4.5 mm center to center spacing

VP 189LP

16 channel manifold for dispensing or aspirating organic solvents (DMSO) to or from 384 Well Microplates, with a 17.18 mm O.D. Polypropylene barrel and 19 gauge tubes 11 mm long.  4.5 mm center to center spacing

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 189M

16 channel manifold with female luer,
20 gauge needles, 14 mm long, 4.5 mm center to center spacing

Also included with each of our female Luer Lok  manifolds and wands are 3 male Luer Loks each with different diameter hose barb.  The photo on the right illustrates how easy it is to attach our manifolds and wands to tubing of various diameters.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 191L

48 channel wand with female luer, 23 gauge needles, 11 mm long, 2.25 mm center to center spacing for use on the Multi-Spense system

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

32 channel wand for aspirating DMSO from 1,536 well Microplates.  32 needles on 2.25 mm centers with a 17.18 mm O.D.  polypropylene barrel.  23 gauge stainless steel needles 7 mm long.

Organic solvent resistant

***NEW***
VP 175A  -  Gen-Probe Rack Dispensing Manifold

10 channel manifold, 19 gauge needles, 9 mm long, on 14 mm centers to dispense liquid to Gen-Probe Racks.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

***NEW***
VP 175D - Gen-Probe Rack Dispensing Manifold

VP 187A

12 channel, 19 gauge, 9 mm center to center spacing manifold was designed to aspirate supernatants from different manufactured deep well plates after centrifugation.  The 35 mm long channels reach nearly to the bottom of most deep well plates and are perfect for aspirating supernatants.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 187B

12 channel, 19 gauge, 9 mm center to center spacing manifold was designed to aspirate supernatants from different manufactured deep well plates after centrifugation.  The 44 mm long channels reach the bottom of most deep well plates and are perfect for aspirating supernatants. 
9 mm center to center spacing

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 187C

12 channel, 19 gauge, 9 mm center to center spacing manifold was designed to aspirate supernatants from deep well plates after centrifugation.  The 49 mm long channels will reach the bottom of most deep well plates.  If it doesn't, we will make a longer one for you.  We can also make a manifold whose channels do not reach the bottom and therefore do not disturb a centrifuged pellet during aspiration.

The VP 187A, VP 187B and VP 187C may also be used with our adjustable slider VP 187S to vary the length of the stainless steel tubes and provided a manifold of the exact length for your application

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

 

VP 187D

12 channel, 19 gauge manifold, 9 mm center to center spacing with channels 7 mm long was designed to aspirate supernatants after the centrifugation of cells to the bottom of the wells.  This aspiration manifold is used in the BD Biosciences Cytokine Flow Cytometry of PBMCs Protocol.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 180A

8 channel, 19 gauge, 30 mm long, 9 mm center to center spacing manifold  was designed to aspirate supernatants from deep well plates after centrifugation without disturbing the pellet.  The 30 mm long channels will not reach the bottom of many deep well plates thereby preventing accidental aspiration of the pellet. If it doesn't, we will make a longer or shorter one for your unique application.  This manifold is recommended and used in BD Cytometric Bead Array assay

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 180B

8 channel, 19 gauge, 63.5 mm long, 9 mm center to center spacing manifold  was designed to aspirate from Innovative Microplate's super deep well plates.  The 63.5 mm long channels will reach the bottom of the wells and will work on both the 96 and 48 well microplates.  If your application is to remove supernatant  after centrifugation without disturbing the pellet we show you how to make your own shim for the manifold to keep the channels from going into the pellet - see photo below.

The VP 180A and  VP 180B may also be used with our adjustable slider
VP 180S to vary the length of the stainless steel tubes and provided a manifold of the exact length for your application

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 180S and VP 187S

The VP 180S and the VP 187S are adjustable sliders that allow you to easily adjust the length of the tubing that goes into the well.  They are far superior and more  flexible then using the shim system described above. Two nylon set screws on each slider allow you to move the slider to any height on the tubes and then lock it into position.

Many of our customers came to us requesting manifolds with different tubing lengths so they could aspirate the wells of microplates without disturbing the pellets of centrifuged cells or other material.  As you can see from all the manifolds we sell this was a rapidly growing business, but we would hear complaints that they were too long or too short even though we made them to the customer's specifications.  We felt an adjustable slider system would solve this problem and would be a better way to meet this growing demand. The VP 180S and VP 187S give the bench scientists virtually infinite adjustability that can be done in your lab to meet your changing applications.  They are designed for 8 and 12 channel manifolds or wands respectively.

The VP 180S and VP 187S are 9 mm tall so when placed on a manifold or wand they will shorten the apparent length of the tubes by 9 mm, so keep this in mind when selecting a manifold or wand.  It is best to use these adjustable sliders with the longest tubes for the greatest range of adjustable lengths.    The best choices are the eight tube VP 180B with 65 mm long tubes (adjustable between 56 and 0 mm) and the twelve tube VP 187BP-60 with 60 long tubes (adjustable between 51 and 0 mm).

VP 180P and VP 180PB

VP 180P - 8 channel manifold for dispensing or aspirating organic solvents (DMSO) to or from 96 Well Microplates, with a 17.18 mm O.D. Polypropylene barrel  and 19 gauge tubes, 14 mm long, and 9 mm center to center spacing. 

The VP 180PB is the same format but the tubing is 61 mm long and is used with the VP 180S adjustable slides to make the aspiration tubes what ever length you want them to be. You no longer have to worry about accidentally aspirating your precious pellet.   *** Solvent resistant

These new designs were made possible by the machinists at V&P finding a new way to attach a threaded female Luer fitting to the middle of the polypropylene barrel.  Thus opening the way for a new line of polypropylene manifold style aspirators and dispensers. 

***This manifold style is also autoclaveable***

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

 

VP 180PA and VP 180PB

The VP 180PA is the same format as the VP 180P but the tubing is 30 mm long, 9 mm center to center spacing for aspirating deep well microplates.

The VP 180PB is the same format but the tubing is 61 mm long and is used with the VP 180S adjustable slides to make the aspiration tubes what ever length you want them to be. You no longer have to worry about accidentally aspirating your precious pellet.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 185BP

VP 187BP

VP 187BP-60

VP 186LP

24 channel wand for dispensing or aspirating organic solvents (DMSO) to or from 384 well microplates, with a 17.18 mm O.D. Polypropylene barrel, 21 gauge needles, 11 mm long, 4.5 mm center to center spacing with two locating pins for use on the Multi-Spense system *Solvent resistant*

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 189LP

16 channel manifold for dispensing or aspirating organic solvents (DMSO) to or from 384 Well Microplates, with a 17.18 mm O.D. Polypropylene barrel and 19 gauge tubes 11 mm long, 4.5 mm center to center spacing.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

VP 190P

Organic solvent resistant wand for dispensing or aspirating DMSO to or from 1,536 well Microplates.  32 needles on 2.25 mm centers with a  17.18 mm O.D.  polypropylene barrel.  23 gauge stainless steel needles 7 mm long.

CV Transfer Results from Product Report

Non-Contact Dispense: CVs < 5%

 

VP 178 & VP 178B

The price of deep well microplates has many laboratories washing and reusing the microplates over and over.  One of our customers asked us to make a washing manifold that could be used in the final deionized water rinse.  These manifolds are resistant to acids, bases and organic solvents as they are made with a rugged polypropylene body, stainless steel guide pins and stainless steel tubing.  The guide pins form a cage and guide the microplate over the tubes so the alignment of the plates with the tubes is a snap.  This manifold has also been modified to be used for aspirating (VP 177A)  (VP 178A)  and dispensing (VP 177AD)  (VP 178JD) (VP 178BJD)

One of our customers asked us to make a washing manifold that could be used to remove unbound reagents from a monolayer of cells grown on two different microplates each with a different well depth.  Our solution was to modify a VP 178 using shorter alignment pins and shorter tubing.   The result is the VP 178B.   By using washers of different thicknesses the height difference between the two plates is easily accommodated.    These manifolds are resistant to acids, bases and organic solvents as they are made with a rugged polypropylene body, stainless steel guide pins and stainless steel tubing.  The guide pins form a cage and guide the microplate over the tubes so the alignment of the plates with the tubes is a snap. 

This manifold has also been modified to be used for aspirating (VP 178D)  and dispensing (VP 178BJD)

The custom manifold on the right was made for a customer who wanted a miniature mixing chamber with multiple channels and the capability to flush it out.   A principle concern was to minimize dead volume loss of precious reagents.  Note that the two end tubes (flush and drain) have an ID of 0.89 mm while the precious reagent tubes have an ID of only 0.25 mm.  All the tubes are connected by a common micro-groove in the polycarbonate base. 

Just one illustration of the ingenuity of our machinists.

VP 121

Cornwall Repeating Syringe, designed for transfer of measured repeat doses up to 5 ml. Complete with Cornwall Luer-Lok syringe, metal pipetting holder, filling outfit, including automatic valve, metal sinker and 20" of rubber tubing.

Made of Polycarbonate

Polycarbonate is not compatible with organic solvents such as DMSO and alcohols.  These solvents especially in combination with UV light cause the polycarbonate to develop small cracks.

A table of polycarbonate chemical resistance is found at this link.

Courtesy of
http://k-mac-plastics.net/data%20sheets/polycarbonate_chemical_resistance.htm

Wands can be autoclaved to sterilize them, manifolds and wands can be chemically sterilized by flushing with 10% bleach, then rinsed well with sterile distilled water.

Made of Polypropylene

Polypropylene is autoclaveable or can be sterilized with a 10% bleach solution.  Polypropylene is compatible with organic solvents such as DMSO and alcohols and can be safely used to aspirate or dispense organic solvents.

A table of polypropylene's chemical resistance is found at this link.

Test Tube Rack Dispensing Manifolds