About Jean Qiu

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So far Jean Qiu has created 2 blog entries.

Poster: Obtaining Consistent and Accurate Cell Counting Results with Cellometer Automatic Cell Counters

Download the Poster Obtaining Consistent and Accurate Cell Counting Results with Cellometer Automatic Cell Counters Bo Lin, Tim Smith, Alnoor Pirani, Jean Qiu, and Peter Li Demand for Cell-based assays are increasing in allbiomedical research and drug discovery and developmentfields. Rapid and accurate characterization of cell population ina sample contributes significantly to assay validity. However,current available automatic cell counting methods often requirecostly instruments with on-board liquid handling. Daily usagerequires special reagent and sample preparation, along withroutine calibration and maintenance. Due to these limitations,cell counting remains largely on a traditional, manual processusing hemacytometers in most biomedical and pharmaceuticallaboratories. We have developed [...]

By |2022-06-13T16:01:18+00:00March 31st, 2021|0 Comments

Poster: Concentration and Viability Measurement of PBMC using the Cellometer Vision

Download the Poster Concentration and Viability Measurement of PBMC using the Cellometer Vision Leo L. Chan, Tim Smith, Alnoor Priani, Emily Lyettefi, Ning Lai, Jean Qiu, and Bo Lin We demonstrate a rapid and cost-effective method for concentration and viability measurement of PBMCs using the Cellometer® Vision. This method has the ability to eliminate many inherent issues caused by manual hemacytometer and flow cytometer. By using Cellometer® Vision, the assay time for generating concentration and viability result is greatly reduced, which is significant for research development in academia and industry.

By |2022-06-13T15:59:57+00:00March 31st, 2021|0 Comments

Use Cellometer Vision to measure nucleated cell concentration in whole blood without lysing RBC

Cellometer Vision incorporates image based cell counting and fluorescence detection in a compact and easy-to-use instrument. With fluorescence detection capabilities, Cellometer Vision is an ideal solution for many complex cell population characterization assays such as rapidly counting white-blood-cells in whole blood. Acridine orange (AO) is a fluorescent nucleic acid stain that has been used to measure nucleated cell concentration in various cell types, including mammalian cell lines, mammalian primary cells, and yeasts. AO is a membrane-permeable dye that stains nucleated cells green.   The following article describes a simple and specific immunoassay to detect cellular immune [...]

By |2021-06-15T20:45:32+00:00March 29th, 2013|Categories: Cellometer, Cellometer Application News, Instrument|0 Comments

Measure total nucleated cells collected by Apheresis

Apheresis is the process of removing a specific component of the blood, such as platelets, red blood cells, plasma (liquid part of the blood) or granulocytes (white blood cells) and returning the remaining components to the donor. Leukapheresis is a specific kind of apheresis in which white blood cells  are separated from a sample of blood. Cells contained in a leukapheresis product is mainly nucleated cells, some residual red blood cells and platelets. Application: measure live /dead nucleated cell concentration and viability Sample Type: human peripheral blood Leukapheresis Cell Type: total nucleated cells Staining Method: acridine orange and propidium iodide (Ao/PI) Instrument: [...]

By |2021-06-15T20:52:19+00:00May 1st, 2012|Categories: Cell Counting Leadership, Cellometer Application News|0 Comments
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