The QPix colony pickers support a wide variety of microorganisms and multiple selection modalities, including fluorescence intensity, blue/white selection, size and proximity, and zone of inhibition.
A suite of organism-specific pin and agar sensor ensure efficient picking. The system delivers a picking efficiency of >98%, allowing you to walkaway with confidence.
A host of sterility features are available including a UV light for sanitizing the interior of the instrument, as well as pin washing, and halogen drying of pins.
Different shape and picking area pins maximize efficiency for E. coli, phage, and yeast. Plating-specific pins ensure uniform distribution of liquid culture onto agar.
Colonies can be picked based on pre-specified parameters using white light, fluorescence, and color. The use of filters enables applications such as blue-white colony screening.
Automated plating and streaking of 96 samples can be done in 30 minutes, providing greater walk-away time.
Automated plate handling and tracking streamlines downstream assay and sample management. QPix colony pickers provides flexible plate replication, gridding, and hit-picking capabilities.
Ultrasonic agar height sensor detects differences in height resulting from variable pouring volume enabling maximum picking efficiency.
The QPix HT model is a robot compatible solution with a modular deck. The Automated Workflow Engineering Solutions Team can tailor a colony picker with a variety of custom services.
*Price, time to deliver and specifications will vary based on mutually agreed technical requirements. Solution requirements may cause adjustment to standard performance.
Applications of QPix 400 Series Microbial Colony Pickers
Protein evolution describes the changes over time in protein shape, function, and composition. Directed evolution of proteins has proven to be an effective strategy for altering or ameliorating the activity of macromolecules for industrial, research, and therapeutic applications. With multiple fluorescent filters, the system is compatible with a wide range of fluorescent cloning vectors. This enables QPix colony pickers to reveal unique information about individual colonies when studying protein folding, enzyme evolution, and protein localization. This includes searching for transformation markers and screening for mutations.
Phage Display is a technique to enable the study of protein, peptide or DNA interaction with a target protein. This molecular tool enables the discovery of high-affinity binders by using bacteriophages to present a target protein on the exterior of the viral coat, while containing the DNA encoding the target protein inside the viral coat. The resultant displaying phages can be screened for binding against a library of peptides or proteins in a high throughput fashion. QPix colony pickers can be used to automate inoculation, plating, spreading and picking in a Phage Display workflow.
Sequencing is the reading of the precise order of adenine (A) guanine (G) cytosine (C) and thymine (T) nucleotides within a molecule of DNA. Shotgun sequencing is a method whereby DNA is fragmented into one kilobase pieces, are then sub-cloned into circular plasmids, and transformed into bacteria. Automated colony picking is essential for increased throughput and plasmid isolation for sequencing. QPix colony pickers are renown for reliability and accuracy, and were used by many sequencing centers during the Human Genome Project. Many areas of research, such as vaccine development, continue to utilize traditional sequencing techniques.
Screening of bacterial transformants that contain recombinant plasmids with cloned gene inserts is an essential step in molecular cloning. A colorimetric reporter method called “blue-white screening” allows convenient identification of recombinant and non-recombinant colonies based on color. QPix colony pickers offer an automated solution especially designed for accurate blue-white colorimetric screening using white light imaging for effective monitoring of transformation efficiency. Other colorimetric approaches such as “red-white screening” can also be implemented on the systems.
One of the most prominent alternative energy resources is biodiesel, an energy-rich portable fuel mainly composed of triacylglycerols. Biodiesel production from lipid producing microbial systems involves screening thousands of clones through a multitude of tests such as bicinchoninic acid (BCA) assays, optical density measurements, and gas chromatography assays. QPix colony pickers automate the task of colony picking, a laborious and error-prone process, effectively shortening timelines to find suitable candidates.
The effectiveness of an antibiotic-producing bacterial strain on a target bacterial strain can be measured by the size of the clearing zone it produces on a lawn of bacteria. QPix Software allows you to rapidly identify, rank, and pick microbial colonies producing clearing zones. Intelligent image analysis enables measurement of clearing zones within a lawn and ranking based on colony size, halo diameter, and compactness.
Imaging |
Camera (white light only system) |
Camera (white light and fluorescence system) |
Fluorescent imaging (optional) |
Colony statistics |
Tracking |
Regulatory Approval |
Compliance |
Quality |
Software |
Zone of inhibition detection |
Colorimetric colony selection |
Plate replication |
Re-arraying |
Compressed Air Specifications |
Air |
Minimum operating pressure |
Minimum operating volume |
Instrumentation |
Spreading capability (QPix 460 System only) |
Destination plate capacity |
Source plate capacity |
Dimensions |
Picking destination plate type |
Picking height |
Picking head |
Pin drying |
Wash bath |
Picking capacity |
Picking pin types |
QPix 420 system | QPix 450/460 systems |
CCD Camera, image resolution: 22 pixels /mm. Field of view: 62 x 46 mm |
CCD Camera, image resolution: 22 pixels /mm. Field of view: 62 x 46 mm |
CCD Camera, image resolution 22 pixels /mm. Field of view: 32 x 24 mm |
CCD Camera, image resolution 22 pixels /mm. Field of view: 32 x 24 mm |
Epifluorescence illumination, five standard wavelengths included: |
Epifluorescence illumination, five standard wavelengths included: |
Colonies selectable based on size, proximity, roundness, fluorescence intensity. Selection performed on whole tray image |
Colonies selectable based on size, proximity, roundness, fluorescence intensity. Selection performed on whole tray image |
1 x barcode reader for tracking of source and destination plates. Data tracked through all applications for plates with same I.D. |
1 x barcode reader for tracking of source and destination plates. Data tracked through all applications for plates with same I.D. |
CE |
CE |
ISO9001:2008 certified |
ISO9001:2008 certified |
Software license |
Software license |
Software license and filters |
Software license and filters |
Software license and additional head |
Software license and additional head |
Software license and additional head |
Software license and additional head |
Clean, oil-free with sub-micron filtration |
Clean, oil-free with sub-micron filtration |
6 bar (~90psi) |
6 bar (~90psi) |
80L/min |
80L/min |
Sampling and spreading source plate: 1 x 96-well (30 minutes for 96 samples). Aspiration volume 10-130 µL. Destination plate: 2 x 22 cm 48 region QTrays. Samples spread from pre-set or customizable pattern |
|
QPix 420 System: Picking: 12 plates; replicating and re-arraying, maximum of 20 plate positions |
QPix 460 System: Up to 140 low profile plates, 70 per stacker lane, maximum 2 stackers |
QPix 420 System: Without manual intervention: 1 x 15 cm petri dish; 5 x 9 cm petri dishes; 2 x OmniTrays; 1 x 22 cm QTrays |
QPix 450/460 System: Without manual intervention: 2 x 15 cm petri dish; 10 x 9 cm petri dishes; 4 x OmniTrays; 2 x 22 cm QTrays |
QPix 420 System (without table): 1460 mm (width) x 770 mm (depth) x 750 mm (height) |
QPix 450/460 System: 2200 mm (width, excluding monitor arm) x 800 mm (depth) x 2140 mm (height on table) |
Various, 24, 48, 96 or 384-well, including deep well |
Various, 24, 48, 96 or 384-well, including deep well |
Integrated ultrasonic agar height sensor to set agar height per plate for accurate picking |
Integrated ultrasonic agar height sensor to set agar height per plate for accurate picking |
Fully pneumatic, 96 pin picking head. Interchangeable heads for other applications |
Fully pneumatic, 96 pin picking head. Interchangeable heads for other applications |
Proprietary halogen pin drying station |
Proprietary halogen pin drying station |
3 x static wash baths |
3 x static wash baths |
3000 colonies per hour in white light, 2000 colonies per hour in fluorescent light |
3000 colonies per hour in white light, 2000 colonies per hour in fluorescent light |
Range of organism-specific pins |
Range of organism-specific pins |
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