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What Are the Best Practices for 2D Electrophoresis in Research?

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When I first began working with 2D electrophoresis, I quickly learned that this powerful technique can either deliver crystal-clear protein maps or turn into a frustrating mess of streaks and smears. Over the years, I’ve refined my approach and adopted a set of best practices that consistently produce high-quality results in research settings. In this article, I’ll walk you through these best practices — step by step — so you can save time, reduce errors, and get reliable data from your own experiments. Start with High-Quality Samples In my experience, the success of 2D electrophoresis starts long before the gel is cast. The quality of your protein sample will directly determine the resolution and accuracy of your results. Here’s what I focus on: Clean extraction: I always use buffers that include chaotropes (like urea) to unfold proteins, detergents to maintain solubility, and protease inhibitors to prevent degradation. Removal of contaminants: Sal...
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How Does SDS PAGE Electrophoresis Help Analyze Protein Purity Accurately?

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When you’re working in a lab focused on proteins—whether for pharmaceuticals, diagnostics, or research—ensuring the purity of your protein sample is crucial. One of the most trusted techniques for evaluating protein purity is SDS PAGE electrophoresis. This method provides a visual and quantitative understanding of your sample composition. But how does it really work? And how can you, as a scientist or researcher, use SDS PAGE to make informed decisions about your protein prep? At Kendrick Labs, Inc, we’ve spent decades helping clients assess their protein samples with precision using SDS PAGE. This guide breaks down the essentials of the technique, its role in purity analysis, and how you can maximize its value in your workflow. What Is SDS PAGE Electrophoresis? SDS PAGE stands for Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis. It’s a laboratory method used to separate proteins based on their molecular weight. Here’s what happens in simple terms: SDS is a det...
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How to Measure Protein Concentration SDS PAGE for Accurate Results?

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As someone who has spent years in the lab, one of the most critical tasks I’ve learned to master is the measurement of protein concentration using SDS PAGE. It might seem routine at first, but ensuring accuracy can truly make or break your experiments. In this post, I’ll share a detailed walkthrough of how I measure protein concentration with SDS PAGE, offering practical tips and real-world advice to help you get reliable and reproducible results every time. Understanding the Basics of SDS PAGE SDS PAGE (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis) is a widely used technique in biochemistry and molecular biology to separate proteins based on their molecular weight. SDS, an anionic detergent, denatures proteins and imparts a negative charge proportional to their length. When subjected to an electric field, these proteins migrate through a polyacrylamide gel matrix, allowing us to visualize and quantify them. At Kendrick Labs, Inc, a trusted name in protein analysis s...
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Location: 1202 Ann St, Madison, WI 53713, USA
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HCP Coverage Analysis in Biologic Purity Checks

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If you’re involved in biologics development, you know that purity isn’t just a regulatory box to check—it’s a cornerstone of safety, efficacy, and commercial success. One area where this is especially true is in Host Cell Protein (HCP) analysis. When left unmonitored, HCPs can compromise the integrity of your biologic, and worse, provoke immune responses in patients. That’s where HCP coverage analysis plays a critical role. It ensures your HCP assay—often an ELISA—is robust enough to detect a wide range of unwanted proteins derived from the host organism used in production. You’re not just validating a test. You’re safeguarding your product, your patients, and your compliance profile. Let’s walk through the key aspects of HCP coverage analysis, how to apply them in real-world biologics development, and how to avoid the common pitfalls that can derail product release or lead to failed audits.   What Is HCP Coverage and Why Does It Matter? As you manufacture biologics—wheth...
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Location: 1202 Ann St, Madison, WI 53713, USA
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Protein Concentration SDS PAGE for Accurate Profiling

If you're in a lab setting—whether academic, industrial, or clinical—getting accurate data from your protein analysis is non-negotiable. You’re likely measuring protein concentration for various applications, from drug development to food quality control. But are you ensuring precision? If not, you're risking inconsistent results, missed targets, and possibly failed experiments. That’s where SDS PAGE (Sodium Dodecyl Sulfate–Polyacrylamide Gel Electrophoresis) becomes your go-to tool. Used effectively, it gives you clear, reproducible profiles of protein concentration and molecular weight, ensuring your data tells the truth every time. Let’s break it down so you can apply SDS PAGE confidently to your next protein concentration assessment—and finally get the accurate profiling you’ve been aiming for. Why You Need Accurate Protein Profiling You already know that proteins play a central role in biological processes. But unless you quantify them precisely, you’re working wit...
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Location: 1202 Ann St, Madison, WI 53713, USA
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Immunoblot for Foodborne Pathogen Detection in Public Health Labs

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  In today’s rapidly evolving public health landscape, accurate and reliable pathogen detection is crucial to ensuring food safety. Public health laboratories rely on advanced protein analysis techniques to identify and monitor harmful foodborne pathogens. One of the most effective and widely used methods for pathogen detection is the Immunoblot Western Blot technique. This powerful tool plays a significant role in identifying specific proteins associated with pathogens, thereby aiding in food safety assessments and outbreak investigations. The Role of Immunoblot Western Blot in Foodborne Pathogen Detection The Immunoblot Western Blot is an essential method used by public health labs to detect proteins related to foodborne pathogens such as Salmonella, Listeria monocytogenes, E. coli, and Campylobacter. This technique provides an unmatched level of specificity and sensitivity, making it an indispensable tool for ensuring food safety. Public health laboratories often use the I...
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SDS-PAGE for Detecting Protein Contamination in Manufacturing

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 In pharmaceutical, biotech, and industrial manufacturing, maintaining protein purity is critical to ensuring the quality, efficacy, and safety of final products. Protein contamination can compromise research results, disrupt production processes, and even pose risks to patients and consumers. SDS PAGE Electrophoresis is a gold-standard technique widely used for detecting protein contamination at various stages of production. It provides a reliable, high-resolution method to analyze protein composition and ensure quality control. Why Protein Contamination is a Concern in Manufacturing Protein-based drugs, vaccines, and diagnostic products require stringent quality control to prevent contamination that could lead to unwanted immunogenic responses or reduced efficacy. Even minor contamination can impact batch consistency, making detection methods essential. SDS PAGE Electrophoresis plays a pivotal role in assessing protein purity and identifying unwanted protein contaminants in b...
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