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Archives

Chick with foot on egg to represent a protein source in relation to protein homology modeling
Protein Expression and Analysis

Homology Modeling in the World of Proteins

ByFaisal M.

Homology modeling is a powerful tool that enables you to predict protein structures. But how do you do it? Read on to find out.

Read More Homology Modeling in the World of ProteinsContinue

Image of an air pressure gage to represent using Gage R&R studies to measure precision in the lab.
Basic Lab Skills and Know-how

Using Gage R&R Studies to Measure Precision in the Lab

ByAdrienne Huntress

Don’t just take in on faith that your measurements are accurate. Discover how to verify your measurements using gage R&R studies.

Read More Using Gage R&R Studies to Measure Precision in the LabContinue

A person holding power tools doing DIY to depict making DIY chemically competent cells
DNA / RNA Manipulation and Analysis

How to Make Your Own Chemically Competent Cells

ByAlex Chen

We’ll show you how to make a DIY stock of chemically competent E. coli, the workhorse in the molecular biology laboratory.

Read More How to Make Your Own Chemically Competent CellsContinue

An image of a male swimming front crawl to represent the Pubcrawler tool
Taming the Literature

Using PubCrawler: How to Speed Up Your Literature Searches by Crawling

ByNeal Melvin

PubCrawler automatically searches PubMed and GenBank for queries that you specify, and emails you the results, helping you stay on top of your literature searches.

Read More Using PubCrawler: How to Speed Up Your Literature Searches by CrawlingContinue

Lightbulbs on a blue background representing the blue colour of Laemmli buffer and learning
Protein Expression and Analysis

Laemmli Buffer: What Is It for Anyway?

ByDimitris Skliros

Laemmli buffer is used almost every day by life since researchers. But what do all those components actually do? Find out in this handy article

Read More Laemmli Buffer: What Is It for Anyway?Continue

An image of different types of salt to depict ways to distinguish between salt and protein crystals
Protein Expression and Analysis

5 Easy Ways to Tell Salt and Protein Crystals Apart

ByThomas Warwick

How do you make sure that the crystals you have grown are of your target protein? Can you tell salt and protein crystals apart without using X-ray diffraction? Yes, you can. Read on to discover five easy ways to distinguish between salt and protein crystals.

Read More 5 Easy Ways to Tell Salt and Protein Crystals ApartContinue

An image of caution signs to depict dangerous laboratory chemicals.
Lab Safety

More Bad Laboratory Chemicals, and What They Do to You

ByMegan Cartwright

It’s all too easy to forget how many common lab chemicals are dangerous. Read on, as we bring you even more dangerous lab chemicals that you should not be messing with.

Read More More Bad Laboratory Chemicals, and What They Do to YouContinue

An image of different nucleic acid representations to depict xeno nucleic acids.
DNA / RNA Manipulation and Analysis

Xeno Nucleic Acids: Essential Tools in Synthetic Biology and Your Research

ByHeinz Reiske

We’re all familiar with DNA and RNA. But have you heard of xeno nucleic acids (XNAs)? Read on to find out how they can be applied in biological research, and how you can start using them in your experiments.

Read More Xeno Nucleic Acids: Essential Tools in Synthetic Biology and Your ResearchContinue

Image of strawberry and tubes to represent how DNA extraction kits work in the lab
DNA / RNA Manipulation and Analysis

How DNA Extraction Kits Work in the Lab

BySuzanne Kennedy

Understanding how DNA extraction kits work is the key to troubleshooting your extraction issues.

Read More How DNA Extraction Kits Work in the LabContinue

Image of coloured dots to represent vizualizing RNA with light-up RNA aptamers.
Microscopy and Imaging

Light-up RNA Aptamers: Illuminating the World of RNA

ByVicki Doronina

Discover how you can visualize that notoriously difficult molecule, RNA using light-up RNA aptamers (LURAs).

Read More Light-up RNA Aptamers: Illuminating the World of RNAContinue

An image of green smoke and a toxic warning sign to depict 10 dangerous chemicals in the lab.
Lab Safety

Ten Bad Chemicals in the Lab and What They do to You!

ByMegan Cartwright

With hazards all around, it’s easy to forget how deadly even common chemicals in the lab are. But don’t worry—we’ve compiled a list of common, dangerous chemicals to help you out.

Read More Ten Bad Chemicals in the Lab and What They do to You!Continue

Image of blurred light to represent signals from DNA microarrays
Genomics and Epigenetics

Introduction to DNA Microarrays

ByYevgeniy Grigoryev

This is the first installment in the DNA microarray series where I will introduce the technology and explain the basics.

Read More Introduction to DNA MicroarraysContinue

Cartoon of bacteria to represent choosing bacterial strains for research
Protein Expression and Analysis

Choosing the Right Bacterial Strains for Your Lab

ByGeorge Yates

Whether you’re simply seeking competent E. coli for a transformation experiment or building a panel intended for a whole project, it’s vital that you pick the right strain for your experiment. Find out more in our complete guide to choosing bacterial strains.

Read More Choosing the Right Bacterial Strains for Your LabContinue

Image of layered cocktail to represent the layers following phenol-chloroform extraction
DNA / RNA Manipulation and Analysis

Practical Application of Phenol-Chloroform Extraction

ByJode Plank

Are you struggling with your phenol-chloroform extraction or just looking to maximize the nucleic acid you retrieve? Then read our expert advice to improve your technique.

Read More Practical Application of Phenol-Chloroform ExtractionContinue

DNA in a glass bottle representing Phenol extraction of DNA
DNA / RNA Manipulation and Analysis

The Basics: How Phenol Extraction of DNA Works

ByDr Nick Oswald

Phenol extraction is a common method for removing proteins from nucleic acids. Discover how phenol extraction of DNA works.

Read More The Basics: How Phenol Extraction of DNA WorksContinue

An image of different colours to represent separation of molecules in ion-exchange chromatography
Analytical Chemistry and Chromatography Techniques

All Charged Up: The Basics of Ion-Exchange Chromatography

ByElizabeth McSweeney

Ion-exchange chromatography is used to separate and purify proteins based on net charge at a particular pH. Here are the basics about this technique.

Read More All Charged Up: The Basics of Ion-Exchange ChromatographyContinue

Man estimating size of object to refelct using a gel filtration chromatogram to estimate molecular weight
Analytical Chemistry and Chromatography Techniques

Using a Gel Filtration Chromatogram to Estimate Molecular Weight

ByUsha Nair

Do you need a way to estimate the molecular weight of a sample or protein? We walk you through one simple solution using a gel filtration chromatogram.

Read More Using a Gel Filtration Chromatogram to Estimate Molecular WeightContinue

Women holding a broken electricity cable looking like she's been electrocuted to represent the competency of electrocompetent E. coli
Protein Expression and Analysis

DIY Electrocompetent E. coli

ByDr Nick Oswald

Making good quality electrocompetent E. coli is very easy. One morning’s work (with a bit of work ahead of time) is all it takes.

Read More DIY Electrocompetent E. coliContinue

Young scientist raising hands to reflect what the heck pun about HEK293 cells
Cells and Model Organisms

What the HEK? A Beginner’s Guide to HEK293 Cells 

ByRebecca Roberts

HEK293 cells are one of the most commonly used cell lines. But what are they? Why should you use them? And what does the ‘293’ mean?

Read More What the HEK? A Beginner’s Guide to HEK293 Cells Continue

Image of fireflys in a forest as the enzyme used in the luciferase reporter assay comes from fireflys
DNA / RNA Manipulation and Analysis

The Luciferase Reporter Assay: How it Works

ByFarida Khan

Discover how the luciferase reporter assay works and how to get starting using it in your research.

Read More The Luciferase Reporter Assay: How it WorksContinue

Image of woman in front of an archway to represent gateway cloning
DNA / RNA Manipulation and Analysis

Essential Factors for Successful Gateway Cloning

BySuryatapa Ghosh

Want to use Gateway cloning or having trouble using this technology? Find out how it works and get helpful tips to increase your success.

Read More Essential Factors for Successful Gateway CloningContinue

An image of two lengths of copper wire, one of which is being cut with wire cutters by an electrician, to represent alternative splicing
DNA / RNA Manipulation and Analysis

What is Alternative Splicing, and Why Is It Important?

ByYevgeniy Grigoryev

Need to brush up on your alternative splicing knowledge? We’re here to help with our guide to this splicing mechanism.

Read More What is Alternative Splicing, and Why Is It Important?Continue

An image of a kid holding colorful pencils to depict using molecular visualization tools.
Software and Online Tools

Learn to Draw a Molecule in PyMOL™ in 8 Easy Steps

ByThomas Warwick

Discover how to easily draw proteins and nucleic acids using molecular visualization tools with our step-by-step tutorial.

Read More Learn to Draw a Molecule in PyMOL™ in 8 Easy StepsContinue

A pile of books with an open book on top to represent keeping track of the scientific literature
Taming the Literature

Keeping Track of Your Literature

ByEllen Moran

We show you how to get organized and develop a system to stay on top of your literature reviews.

Read More Keeping Track of Your LiteratureContinue

image of fluorescent lights to represent choosing a fluorescent protein
Microscopy and Imaging

The Ultimate Guide to Choosing a Fluorescent Protein

ByAdrienne Huntress

Discover the critical considerations when choosing a fluorescent protein, the key features of those most commonly used, and why newer might be better.

Read More The Ultimate Guide to Choosing a Fluorescent ProteinContinue

Image of two hands shaking to represent the physcial interaction of proteins in a quantitative yeast two-hybrid assay
Protein Expression and Analysis

A Step-by-Step Guide to the Quantitative Beta-galactosidase Assay for Y2H Screening

BySafia Mahabub Sauty

Want to know not only if your proteins bind but quantify the interaction? We walk you through how to perform a quantitative yeast two-hybrid assay.

Read More A Step-by-Step Guide to the Quantitative Beta-galactosidase Assay for Y2H ScreeningContinue

A wooden block with a letter t in front of several other blurred wooden blocks to represent the 3 Ts of introducing foreign DNA
DNA / RNA Manipulation and Analysis

The Three Ts of Introducing Foreign DNA: Transfection, Transduction, and Transformation

ByJill Muhling

Do you know your transfections from your transductions? We explain the differences between three of the most commonly used ways of introducing foreign DNA.

Read More The Three Ts of Introducing Foreign DNA: Transfection, Transduction, and TransformationContinue

Image of teddy bears in bubbles as a funny wa to represent the need to remove excess detergent from membrane proteins
Protein Expression and Analysis

Beat Back the Bubbles: 6 Ways to Remove Excess Detergent from Your Membrane Protein Sample

ByThomas Warwick

Excess detergent in your membrane proteins samples can cause you serious headaches. We’ve got you covered with 6 ways you can remove excess detergent from membrane proteins.

Read More Beat Back the Bubbles: 6 Ways to Remove Excess Detergent from Your Membrane Protein SampleContinue

Image of raindrop on a leaf to represent DNA precipitation
DNA / RNA Manipulation and Analysis

DNA Precipitation Protocol: Ethanol vs. Isopropanol

ByDr Nick Oswald

Discover what you need for successful DNA precipitation and how to choose between ethanol and isopropanol solvents.

Read More DNA Precipitation Protocol: Ethanol vs. IsopropanolContinue

An image of a person's arms in a hazmat suit holding a biohazard warning sign to represent common lab safety signs
Lab Safety

Safety Comes First: Common Laboratory Signs

ByArpita Das

Baffled by all the safety signs in your lab? Here we give you an overview of the most common lab safety signs and tips on best practices for keeping safe.

Read More Safety Comes First: Common Laboratory SignsContinue

Image of a child doing science. They are amazed at finding out how SDS-PAGE Works
Protein Expression and Analysis

How SDS-PAGE Works

ByDr Nick Oswald

Knowing how SDS-PAGE works means that you can troubleshoot any issues in your experiment and tweak the setup to get publication-worthy figures. Find out how it works here.

Read More How SDS-PAGE WorksContinue

Image of a mechanic thinking before fixing a car to represent thinking before performing histology fixation
Microscopy and Imaging

An Introduction To Fixation For Histology: Think Before You Fix!

ByMike Millar

How you fix your tissue or cells can affect your results, for better or for worse. Discover the key points to think about before undertaking your histology fixation.

Read More An Introduction To Fixation For Histology: Think Before You Fix!Continue

A bookshelf of old books to represent the history of histology
Microscopy and Imaging

A (very) Short History of Histology

ByMartin Wilson

Discover the history of histology, from the first mention of a cell in 1665 to the identification and development of various stains.

Read More A (very) Short History of HistologyContinue

Image of a girl surround by traps to represent avoiding histology mistakes
Microscopy and Imaging

Avoid These Pitfalls: Seven (Not So Deadly) Histology Sins

ByDr Jennifer Redig

Discover seven common histology mistakes and how you can avoid making them when performing your experiments.

Read More Avoid These Pitfalls: Seven (Not So Deadly) Histology SinsContinue

A cartoon depiction of five smiling cells standing next to height charts to represent assessing bacterial culture growth using OD600 measurements
Cells and Model Organisms

Is Your Bacterial Culture Still Growing? A Primer on OD­600 Measurements

ByAdrienne Huntress

How do you know when your bacterial culture is “done” growing? Read on to learn how to monitor bacterial growth using OD600 measurements, and how to figure out when you should harvest your culture.

Read More Is Your Bacterial Culture Still Growing? A Primer on OD­600 MeasurementsContinue

An image of salt crystals to depict the crystallization of protein–DNA complexes
Analytical Chemistry and Chromatography Techniques

Crystallize Your Protein–DNA Complex by Optimizing These Key Parameters

ByThomas Warwick

Looking to engineer a crystal? Here are some key parameters to optimize to give you the maximum chance of success at crystallizing protein DNA–complexes.

Read More Crystallize Your Protein–DNA Complex by Optimizing These Key ParametersContinue

Image of an airport terminal sign signalling the way to departure gates to represent advice on how to quit graduate school
Survive and Thrive

Should I Stay or Should I Go? Part II: How to Gracefully Exit a Graduate School Program

ByAdrienne Huntress

Deciding to quit graduate school is a tough decision. But people have gone before you (and survived): get their advice on how to exit gracefully here.

Read More Should I Stay or Should I Go? Part II: How to Gracefully Exit a Graduate School ProgramContinue

A multicoloured marble-effect background created with paint to represent immunohistochemistry basics
Innova Biosciences | Protein Expression and Analysis

Getting Started with Immunohistochemistry

ByInnova Biosciences

Immunohistochemistry isn’t just a useful clinical tool, it also has great applications as a basic research tool. We’ll walk you through the immunohistochemistry basics to get you off to a flying start.

Read More Getting Started with ImmunohistochemistryContinue

Image of oil and water to represent understanding the importance of the numerical aperture on a microscope objective
Microscopy and Imaging

That Other Number – The Meaning Of Numerical Aperture In Microscopy

ByCynthia Barber

Do you know what that NA number is on your objective? We walk you through what the numerical aperture is and why it’s important.

Read More That Other Number – The Meaning Of Numerical Aperture In MicroscopyContinue

An image of microscope objectives with a scientist's hands to represent common microscope objective abbreviations
Microscopy and Imaging

An Objective View: What do These Abbreviations Mean on Microscope Objectives?

ByMartin Wilson

There are a large number of microscope objective abbreviations relating to optical aberrations; here we’ll shed some light on some of the most common ones to get you up to speed in no time!

Read More An Objective View: What do These Abbreviations Mean on Microscope Objectives?Continue

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