Fluorescent Protein Expression

Recombinant DNA techniques allow researchers to incorporate a fluorescent protein into an engineered plasmid and track its expression over time with flow cytometry or, more commonly, fluorescent microscopy methods. Here we explore the history, advantages, common uses and wide selection of fluorescent proteins.

Posted October 7 , 2019

Background Fluorescence

Background fluorescence includes any signal detected beyond what is generated by the fluorochromes being measured.  Here we will explore the causes of and best methods for minimizing or compensating for each of the three background fluorescence sources…

Posted September 3, 2019

FLISA vs. Fluorescent ELISA

Pathologists and life science researchers are increasingly performing multiplexed assays on formalin fixed, paraffin embedded samples. This allows for the collection of more data from a single tissue specimen, far beyond the typical single-color immunohistochemistry (IHC) stain…

Posted September 3, 2019

Advances in Flow Cytometry: AI and Spectral Cytometry

The field of flow cytometry continues to progress toward the goal of collecting and analyzing more data. Here we explore two recent advancements: spectral analyzer platforms to collect more data, and machine learning algorithms to analyze larger datasets.

Posted Aug 3, 2019

Getting More From Less With Multiplex IHC

Pathologists and life science researchers are increasingly performing multiplexed assays on formalin fixed, paraffin embedded samples. This allows for the collection of more data from a single tissue specimen, far beyond the typical single-color immunohistochemistry (IHC) stain.

Posted July 9, 2019

The Do's and Don'ts of Compensation in Flow Cytometry

Compensation is the process of correcting for spillover when one fluorophore is detected in multiple channels. It is required for most experiments of four or more colors to identify the correct signal that should be measured in each channel. We’ve developed a quick list of Do’s and Don’ts to help new flow cytometry researchers navigate the basics of compensation.

Posted June 4, 2019

Using the Stain Index to Design Better Panels

When designing a flow cytometry experiment, it is important to consider the relative brightness of each fluorescent label on your specific instrument.  Generally, it is best to assign brighter fluorochromes to weakly expressed markers, and dimmer labels to strongly expressed markers.

Posted May 7, 2019

Breaking the Fluorescent Microscopy Color Barrier

The inability to resolve signals with overlapping color spectra has traditionally limited fluorescence microscopy to a “color-barrier” of 5 colors.  However innovative new developments in microscopy techniques and analysis software are allowing researchers to resolve more biomarkers than previously possible.

Posted April 5, 2019

Matching Secondary Antibodies for Indirect Flow Cytometry

Flow cytometry can be performed directly using a fluorescently labeled primary antibody, or indirectly using an unconjugated primary antibody with a labeled secondary. Most researchers prefer direct detection due to the simplicity and ease-of-use. However, certain fluorescent antibody experiments may require indirect detection with a labeled secondary…

Posted April 5, 2019

A Guide to Flow Cytometry Cell Cycle Analysis

Flow cytometry cell cycle analysis typically involves using a DNA binding dye to determine each cell’s total DNA content. Sorting cells by cell cycle phase is then possible, as the total DNA content fluctuates as cells pass through G0/G1, S, and G2/M phases…

Posted March 5, 2019

Six Simple Questions to Improve your Gating Technique

The first step to any successful flow cytometry data analysis is proper gating.Here we outline 6 questions that cytometry researchers should ask themselves to help improve your gating techniques.

Posted February 5, 2019

2018 Trends on Panel Design

We’ve analyzed millions of data points over the past year to identify trends and opportunities in panel design. Find out if your lab is on the cutting edge or falling behind in our 2018 Trends in Fluorescent Experiment Design report.

Posted January 3, 2019

Finding the Best Dyes for Apoptosis Markers

Explore the use of flow cytometry in apoptosis research and examine various fluorescent apoptosis markers.

Posted December 5, 2018

Are you getting the most out of your cytometer?

This month we explore how incorporating additional fluorochromes into your experiment can provide valuable data without making your panel design unnecessarily complex.

Posted November 2, 2018

Antigen Density Explained

This month we explain why antigen density is important to flow cytometry studies, describe how it is measured, and list some useful references for known antigen expression densities…

Posted October 2, 2018

7 Tips for a Successful Flow Cytometry Experiment

Getting started in flow cytometry may seem overwhelming, so we’ve broken the flow cytometry experiment down into seven basic steps…

Posted September 4, 2018

18 Facts About the History of Flow Cytometry

Did you know that Flow Cytometry was originally called ‘pulse spectro-cytophotometry’ or that the first flow cytometer was built to detect WMDs? Learn more by reading the full article…

Posted August 7, 2018

There's Nothing to FRET about Tandem Dyes

Researchers can now use several tandem dyes to improve the fluorescent signal for their experiments. However, while tandem dyes can serve as powerful research tools, they can also introduce a new set of problems to consider. Here we explore the benefits of tandem dyes and review some of the difficulties that they present.

Posted July 10, 2018

Comprehensive Guide to Compensation

Does compensation leave you feeling incompetent?

Check out this “comprehensive” list of compensation guidelines and best practices, gathered from our from our flow community, to help improve your analysis.

Posted June 5, 2018

Join the Fight Against the Reproducibility Crisis

The “reproducibility crisis”, or the inability for researchers reproduce findings, remains a growing concern for a wide range of scientific disciplines. With this article, we aim to highlight the various efforts being taken by some of our partner reagent suppliers to help combat irreproducible experimental results.

Posted May 4, 2018

7 Tips to Help Get Your Flow Data Published

You put a lot of time and effort into your flow cytometry experiments. Follow these 7 tips to ensure that your flow data is high-quality and more likely to be published!

Posted Apr 3, 2018

OMIPs: Stop Reinventing the Wheel!

OMIPs help simplify panel design by serving as a useful starting point for new research. In this article, we review the status of the 44 currently approved OMIPs and explain how new OMIPs are being developed with the help of FluoroFinder’s panel builder tool.

Posted Mar 6, 2018

Don't Dump the Dump Channel

This month we explore the value of using dump channels and explain how they are best utilized to improve your flow data.

Posted Feb 6, 2018

A Guide to Choosing the Right Viability Dye

This guide helps to explain the various types of viability dyes, explore their respective benefits, and summarize the commercially available dyes for each group.

Posted Jan 9, 2018

Analysis of Trends in Fluorescent Experiment Design

Find out if your lab is on the cutting edge or falling behind the times in our 2017 Trends in Fluorescent Experiment Design report.

Posted December 12, 2017

The Art of Flow Cytometry Gating

Flow cytometry gating can often seem like a daunting task. While there is no single solution, experienced cytometrists can recommend several tips beyond “praying for good data”. Here we define gating, explore gating methodologies, and provide some useful tips for properly gating your cells.

Posted November 14, 2017

Expand Your Experimental Palette

Flow cytometry research is continually trending toward larger panels with more colors.  This month we explore navigating the ever expanding selection of commercially available fluorescent antibodies and how researchers are getting better data by designing more colorful panels.

Posted October 10, 2017

Report: Best Practices in Panel Design

FluoroFinder has now integrated cytometer configurations for over 500 cores! With so many researchers using FluoroFinder to design their flow cytometry experiments, we wanted to share some of the excellent feedback we have received.

Posted September 12, 2017

Get More From Your Flow Core

Aside from costing your lab time and grant money, shared cytometers are a valuable resource so booking additional time may be difficult. Therefore, we have compiled this list of tips for maximizing your productivity during your time at the flow core.

Posted August 15, 2017

Cytometer Selection Made Easy

This resource page compiles information on the various commercially available cytometer platforms, including basic features and user reviews, to help you choose the best cytometer for your needs.

Posted July 11, 2017

Addressing the Reproducibility Crisis Through Better Experiment Design

FluoroFinder recognizes the importance of collaboration for good experimental design, and we are helping to fight the reproducibility crisis by maximizing the available information for each antibody in our database.

Posted June 13, 2017

Avoiding Common Mistakes in
Panel Design & Analysis

We have compiled tips to void the 6 most common pitfalls of cytometry experiment design and analysis. Learn how to avoid failed experiments, save time and frustration and get better data!

Posted May 9, 2017

Flow Cytometry Dictionary

Flow cytometry can often seem complicated and intimidating. Whether you are new to flow or an experienced researcher considering a new technique, we have compiled a glossary of important terms to help!

Posted April 10, 2017

Your Guide to Understanding Flow Cytometry Beads

Immunobeads are useful for a variety of flow cytometry related applications. Here we outline the most commonly used bead types and explain how they can be used for cytometer calibration, compensation determination and even cell sorting.

Posted March 7, 2017

Report: 2016 Trends in Panel Design

Is your lab on the cutting edge or falling behind the curve? We have analyzed thousands of panels to find these interesting trends in fluorescent experiment design.

Posted February 10, 2017

Your Essential Pre-Sort Checklist

Are you planning to run a cell sort on a precious sample? Concerned about recovery? Be sure to review our pre-sort checklist of 7 things experienced cytometrists recommend to improve cell recovery.

Posted January 10, 2017

Tracking Fluorescent Proteins

Are you designing multicolor panels around your fluorescent proteins? Would seeing your fluorescent proteins and reagents in a multi-vendor spectra viewer help you better anticipate issues?

Posted December 8, 2016

Jumpstart Your Panel Design with OMIPs

Designing a multicolor fluorescent panel can take months to develop and optimize. Fortunately, Optimized Multicolor Immunofluorescence Panels(OMIPs) have greatly reduced this process.

Posted November 8, 2016

Designing Better Panels with Antibody Validation Data

Could a new product improve your experiment? Has that new antibody been vetted by reliable testing? Linking reagent publication histories to antibodies data gives researchers more reliable info during experiment design!

Posted September 8, 2016

Viability Dyes – A Control You Can’t Live Without

Viability dyes enable you to distinguish between live and dead cell populations in your analysis. Learn why this control is critical to most flow cytometry experiments.

Posted June 30, 2016