Professor Michaela Rumlová, head of a research group of the National Institute of Virology and Bacteriology at UCT Prague (and Vice-Rector for doctoral studies), holder of a licensed patent &nbsp;for antiretroviral testing assays, and recipient of the Czech Science Foundation’s President’s Award for HIV research, has also become the principal investigator of the bilateral INTER-EXCELLENCE II project “Cellular factors regulating the export and packaging of unspliced ​​retroviral RNA”, starting this year. In this interview, she explains how retroviruses such as HIV “hack” the cell in order to export their own genome from the nucleus into the cytoplasm, and then to the site where it is specifically packaged into nascent viral particles, a key step in viral replication. Her team is collaborating with the NIH (National Institutes of Health) and Rockefeller University to elucidate mechanisms that may help reveal new vulnerable points in the retrovirus replication cycle while simultaneously clarifying related cellular processes.<h5>Could you describe your project and its main objectives?</h5>Retroviruses, such as HIV, are viruses that carry genetic information in the form of RNA; however, after entering a cell, they are able to reverse transcribe it into DNA and integrate it into the host genome. In order to replicate, they must transport their genetic information—in the form of unspliced RNA—from the nucleus into the cytosol. There, it serves both as a template for the production of viral proteins and as the genome of new viral particles. This is highly unusual, as the cell very carefully controls which RNA molecules are allowed to leave the nucleus. Normal protein-coding cellular RNAs, known as messenger RNAs (mRNAs), must undergo splicing—a processing step in which certain segments are removed—before being exported. When this process fails, mRNA that retains these segments is held back in the nucleus as part of quality control and subsequently degraded. Retroviruses have managed to outwit this cellular control machinery, allowing their unspliced RNA to pass into the cytoplasm.Our project focuses on identifying the cellular proteins that assist retroviruses in this step and on the mechanism by which protein complexes bound to viral RNA are remodelled during RNA transport. The goal is to understand how the virus uses cellular mechanisms to its advantage and how this pathway is linked to the subsequent fate of the RNA, i.e. to its translation and packaging into new viral particles.<h5>Why is this export of unspliced ​​RNA so important for retroviral replication?</h5>Because this RNA has a dual role for the virus. On the one hand, it serves as a template for synthesizing viral proteins in the cytoplasm; on the other, it represents the genetic material itself, which must be packaged into new viral particles. The virus must package its RNA genome in its unspliced form, as only this RNA contains essential sequences without which further viral replication would be impossible.Simply put: the virus needs to get a complete copy of its genetic instructions out of the nucleus. Once the viral RNA is in the cytoplasm, it can be used as a template for synthesizing viral proteins; and a portion of these RNA molecules is then selected and packaged into a new particle as a genome. We are interested in how the virus forces the cell to allow viral RNA that is, from the cell’s perspective, “unfinished,” that is unspliced, to leave the nucleus. We are also investigating how the cell and the virus together - albeit unintentionally from the cell’s perspective - determine which RNA molecule will be translated into proteins and which will be packaged as the genome. This is one of the key, yet still not fully understood, steps of retroviral replication.<h5>What do you think it was about your project that impressed the Ministry of Education, Youth and Sports’ jury the most?</h5>I believe the decisive factor was a combination of several elements. First, the reviewers were primarily interested in the scientific problem itself. We are investigating a mechanism that is essential for retroviruses, but still not sufficiently understood, which may also have broader implications for the regulation of cellular processes. In addition, the quality of the team, our strong collaboration with the NIH and Rockefeller University, and the use of modern methods that will allow us to track viral RNA in great detail also played a role. It was also important that the project has clear objectives and a realistic plan.<h5>How will this research contribute to the development of new treatments for retroviral infections?</h5>It is important to say that this is primarily basic research. Rather than developing a new drug directly, we are trying to understand, at the molecular level, the step that the virus cannot do without. Only when we fully understand the mechanism of these cellular processes and identify the essential factors for the export of unspliced ​​RNA and how they function, will we be able to better determine which interactions or mechanisms represent potentially vulnerable points. Similar mechanisms associated with the export of unspliced ​​mRNA also appear in some diseases, such as cancer, so I &nbsp;see the benefit of our research mainly in that it will refine our understanding of these pathological processes in the cell, and retroviruses help us do so. Therefore, our work on retroviruses not only shows us how the virus works, but also how the cell itself works.<h5>What responsibilities does your UCT Prague team have? How does the collaboration with your American partners work?</h5>At UCT Prague, we are conducting the project’s primary experimental work. Our research involves cell cultures, viral models, and various biochemical techniques ranging from immunochemistry to microscopy that allow us to track viral RNA and identify its cellular partners. In collaboration with colleagues from NIH, Frederick, we are developing single-particle tracking methods to observe viral RNA movement in living cells across both space and time. Furthermore, we are working with colleagues from Rockefeller University to employ iCLIP methods for the precise mapping of protein-binding sites on RNA. Both collaborations are valuable to us, because they are not just about data sharing, but also about the transfer of expertise and detailed know-how.<h5>Who else is collaborating on the project?</h5>At UCT Prague, we collaborate closely with the Department of Biotechnology and the Department of Biochemistry and Microbiology. Externally, we work with colleagues from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague) and the Central European Institute of Technology in Brno (CEITEC). Our research naturally necessitates the integration of diverse fields of expertise; it requires combining virology, cell biology, and biochemistry with advanced imaging and modern approaches to study RNA-protein interactions. This is exactly what makes our project capable of addressing complex questions that a single laboratory cannot tackle on its own.<h5>Are there plans to continue the project? Have you brought on new collaborators, and are you looking to welcome new colleagues to the team?</h5>Yes, definitely. In basic research, it often happens that one answered question opens up several more. High-quality, properly interpreted data provide a foundation you can build on — and that is what moves scientists forward. It is already clear that the topic of retroviral RNA export and packaging has broader implications and may reveal more general principles of how RNA functions within the cell. We also hope the project will be attractive to students, as it connects classical molecular biology, biochemistry, and virology with cutting-edge biotechnological methods. Students are already involved in the project as part of their bachelor’s and master’s theses.<h5>What was the personal turning point that motivated you to pursue a long-term investigation into retroviral particles?</h5>I first encountered retroviruses in the early 1990s during my diploma thesis, when I was working at IOCB Prague on HIV-1 protease inhibitors. At that time, AIDS could not yet be effectively treated, and retrovirus research had a completely different dimension. From the very beginning, I was fascinated by how such a relatively small and simple virus can outsmart evolutionarily highly optimized cellular processes and turn them to its own advantage. And that has never stopped fascinating me. From a scientific point of view, retroviruses are remarkable; just consider one of their enzymes, reverse transcriptase, without which no diagnostic or research laboratory in the world could function today. Without it, it would be impossible to diagnose RNA viruses like SARS-CoV-2, influenza, or HIV using RT-PCR tests, or, for example to produce recombinant human proteins in bacterial cells.

Tracking unspliced RNA: Professor Rumlová studies how retroviruses “hack” cells

News from LabRulezLCMS Library - Week 20, 2026

🎤Lindsay Repka&nbsp;Lindsay Repka is a chemistry professor at Middlebury College whose research explores photoredox chemistry, catalyst stability, and visible-light-driven transformations. Her lab emphasizes both mechanistic insight and hands-on student training in advanced analytical instrumentation.In this episode of Concentrating on Chromatography, we sit down with Lindsay Repka to discuss how LC-MS and GC-MS transformed her lab’s approach to photoredox chemistry.What began as a project to develop a visible-light photocrosslinking handle unexpectedly led to a major discovery: the solvent (DMF) was reacting with the photocatalyst itself. Using high-resolution LC-MS, Lindsay’s team observed multiple solvent adducts forming — sometimes with complete catalyst consumption. That discovery reshaped their research direction.This episode is a rare deep dive into both LC-MS and GC-MS within the same research project, showing how chromatography-driven insight can turn unexpected degradation into productive new reactivity.If you work in:<ul><li>Photoredox chemistry</li><li>Reaction optimization</li><li>Mass spectrometry method development</li><li>Catalyst screening</li><li>Academic synthetic chemistry</li></ul>…this conversation will resonate.<h4>Key Topics Covered</h4><ul><li>Photocatalyst stability in DMF, DCE, and MeCN</li><li>Demethylation under mild visible-light conditions</li><li>High-resolution Q-TOF LC-MS quantitation</li><li>Internal standard methodology in GC-MS</li><li>Signal-to-noise improvement using extracted ion chromatograms</li><li>Reaction reproducibility and quality control strategy</li></ul><h3>Video Transcription</h3>In this interview, Lindsay Repka discusses the role of photoredox chemistry in method development, photocrosslinking, solvent activation, catalyst stability, and the use of LC-MS and GC-MS to understand reaction pathways.<h4>What is photoredox chemistry?</h4>Photoredox chemistry uses light to activate a photocatalyst, which can either donate or accept an electron from a substrate. This generates radical species that can undergo new types of reactivity.Repka explains that one of the key advantages of photoredox chemistry is its ability to operate under mild conditions, often using visible light. This makes it attractive for sensitive molecules and biological systems, including potential applications in drug release, live-cell chemistry, and drug development.<h4>Photocrosslinking and drug-target interactions</h4>Repka’s group initially aimed to develop visible-light photocrosslinking methods to study drug interactions with biological targets. Photocrosslinking can covalently link a drug to its target, making it easier to identify the biological target of a compound.Traditional photocrosslinking often uses UV light, but visible light offers milder and more biologically compatible conditions.<h4>From photocrosslinking to solvent activation</h4>The project shifted direction when the desired photocrosslinking reactions gave very low yields. Instead of reacting with amino acids as intended, the radical intermediate mainly reacted with itself.The team explored different solvents to stabilize the radical, but found that some solvents, such as DMF, were not inert. Instead, the solvent reacted with the photocatalyst or radical species, revealing unexpected solvent activation chemistry.<h4>Why LC-MS was critical</h4>LC-MS became essential because the reaction mixtures were too complex and low-yielding for NMR or GC-MS. High-resolution LC-MS allowed the team to detect minor products, identify photocatalyst modifications, and observe solvent addition products with high confidence.Repka emphasizes that LC-MS was both a qualitative and quantitative tool. It was used quantitatively to measure how much photocatalyst remained after light exposure, and qualitatively to identify degradation products and new reactivity pathways.<h4>Photocatalyst stability workflow</h4>The team developed a systematic workflow to evaluate photocatalyst stability under light exposure. Because catalyst degradation was time-sensitive, reproducibility required strict control of experimental conditions.Key steps included using a glove box, commercial deoxygenated solvents, accurate weighing on a microbalance, controlled light exposure in a photoreactor, and temperature control with a chiller. These precautions helped reduce day-to-day variability and enabled reproducible measurements of catalyst remaining.<h4>Quantifying catalyst remaining by LC-MS</h4>Calibration curves were prepared using pure photocatalyst solutions and LC-MS ion areas. The team worked in the nanomolar range to maintain linearity.Instead of relying only on total ion chromatograms, they used extracted ion chromatograms (EICs) to improve signal-to-noise for the photocatalyst signal. Baseline subtraction was also applied to reduce noise and improve quantitation at low concentrations.Calibration curves and quality control samples were prepared and measured on the same day as the reaction samples, because LC-MS signal intensity can vary significantly from day to day.<h4>Why GC-MS was used later</h4>For demethylation studies, the group moved to GC-MS because the substrates and products were small and volatile enough for gas chromatography. GC-MS was better suited for rapidly screening many reaction conditions, including different photocatalysts, solvents, and oxidants.Instead of generating full calibration curves for every experiment, the team used an internal standard to streamline analysis and determine percent conversion based on relative response factors.<h4>Practical lessons from the project</h4>Repka highlights the importance of careful sample preparation, especially when working with very small quantities of photocatalysts. A high-quality microbalance, stable granite platform, antistatic tools, and aluminum weigh boats improved weighing accuracy and reproducibility.She also argues that mass spectrometry should be a standard part of photoredox method development because it can reveal minor products, support reaction optimization, and provide insights that may be difficult or impossible to obtain by NMR alone.<h4>Final perspective</h4>Beyond the chemistry, Repka emphasizes the importance of student training and mentoring. For her, research is not only about discovering new reactivity but also about giving students practical experience, helping them develop independence, and preparing them for future scientific careers.<blockquote>This text has been automatically transcribed from a video presentation using AI technology. It may contain inaccuracies and is not guaranteed to be 100% correct.</blockquote><blockquote><h4>Concentrating on Chromatography Podcast</h4>Dive into the frontiers of chromatography, mass spectrometry, and sample preparation with host David Oliva. Each episode features candid conversations with leading researchers, industry innovators, and passionate scientists who are shaping the future of analytical chemistry. From decoding PFAS detection challenges to exploring the latest in AI-assisted liquid chromatography, this show uncovers practical workflows, sustainability breakthroughs, and the real-world impact of separation science. Whether you’re a chromatographer, lab professional, or researcher you'll discover inspiring content!You can find Concentrating on Chromatography Podcast in podcast apps:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL">Spotify</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podcasts.apple.com/tz/podcast/concentrating-on-chromatography/id1788429185">Apple podcast</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podscan.fm/podcasts/concentrating-on-chromatography">podscan</a></li></ul>and on <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/@ChromatographyTalk/videos">YouTube channel</a></blockquote>

Using LC-MS & GC-MS to Decode Photoredox Catalyst Stability

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The University of Chemistry and Technology, Prague is a natural centre of first-rate study and research in the area of chemistry in Czechia and is one of the country's largest educational and research institutions focused on technical chemistry, chemical and biochemical technologies, material and chemical engineering, food chemistry, and environmental studies.

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Organomation, founded in 1959, designs and manufactures high-quality nitrogen evaporators and extraction systems. Known for innovation and durability, their lab instruments are used globally for efficient sample preparation with strong customer support.

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Agilent&#39;s Cary 3500 Flexible UV-VIS Spectrometer makes concentration analysis easy. Its unique hardware design allows you to effortlessly change cuvette pathlengths for switching between assays.
In this presentation, we will discuss concentration analysis workflows and how to streamline these measurements with reliable hardware and software.
<blockquote>
Presenter: Scott Melis, PhD (Application Scientist, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Scott Melis has a PHD in Physics from Georgetown University in Washington, DC and started with Agilent in 2021 as a Molecular Spectroscopy Application Scientist. In his graduate work, Scott studied nanoparticle formation and growth for a variety of applications. Projects that he worked with include developing processes to deposit and characterize semiconducting molecular nano-cocrystals for use in optoelectronic devices as well as controlling polymer nanoparticle size through rapid mixing conditions.
</blockquote>

Agilent Technologies: Simple UV-VIS Workflows For Concentration Analysis

Simple UV-VIS Workflows For Concentration Analysis

We will discuss concentration analysis workflows and how to streamline these measurements with reliable hardware and software.

Agilent&#39;s Cary 3500 Flexible UV-VIS Spectrometer provides the accuracy and reliability needed for meeting compliance standards.
This presentation will discuss an overview of the instrument&#39;s newest functions as well as the software&#39;s ability to maintain data integrity through Agilent&#39;s OpenLab Platform.
<blockquote>
Presenter: Scott Melis, PhD (Application Scientist, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Scott Melis has a PHD in Physics from Georgetown University in Washington, DC and started with Agilent in 2021 as a Molecular Spectroscopy Application Scientist. In his graduate work, Scott studied nanoparticle formation and growth for a variety of applications. Projects that he worked with include developing processes to deposit and characterize semiconducting molecular nano-cocrystals for use in optoelectronic devices as well as controlling polymer nanoparticle size through rapid mixing conditions.
</blockquote>

Agilent Technologies: Meeting 21 CFR 11 Compliance with the Cary 3500 Flexible UV-VIS Spectrometer

Meeting 21 CFR 11 Compliance with the Cary 3500 Flexible UV-VIS Spectrometer

We will discuss an overview of the instrument's newest functions as well as the software's ability.

Meeting 21 CFR 11 Compliance with the Cary 3500 UV-VIS

Applications in the world of UV-Vis instrumentation range from the simple routine measurement (i.e. absorbance at a single wavelength) to the more complex (i.e. thermal melts or in situ absorbance vs time measurements).
The focus of Part I of this two part series will be on entry level and the mid-performance instrumentation and what is needed to make a variety of measurements.
<blockquote>
Presenter. Mark Fisher, PhD (Application Engineer, Molecular Spectroscopy, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark, an Application Scientist for Agilent Technologies, has over 35 years of experience in molecular spectroscopy. He has held roles in Agilent&#39;s UV-Vis-NIR, fluorescence, and atomic absorption product portfolios. In addition to identifying industry trends and new business needs, Mark&#39;s responsibilities include application development, pre and post-sales support, as well as acting as a customer advocate for new product and technology opportunities. Mark received his doctorate in analytical chemistry from the University of Nebraska-Lincoln.
</blockquote>

Agilent technologies: UV-Vis Instrumentation: From Routine to Advanced Applications

UV-Vis Instrumentation: From Routine to Advanced Applications

Entry level and the mid-performance instrumentation and what is needed to make a variety of measurements.

UVVis Instrumentation: From Routine to Advanced Applications

Have you fully exploited the potential of your analytical techniques in edible oil analysis? Our experts will reveal what you can achieve with CNSX-analysis, ICP-OES, AAS and UV/Vis in regulated standard analysis and beyond.
Price fluctuations, supply bottlenecks and export stops have highlighted in recent years how volatile and complex the supply chains of edible oils are. Exporters, importers and processors of edible oils face the challenges of rapid supplier qualification while achieving regulatory compliant, seamless, and efficient quality monitoring of their crude oil, intermediates and final products.
As agricultural products, edible oils are subject to natural quality fluctuations, while cultivation methods and long transport routes pose risks of contamination and oxidation. In addition, they go through a temperature- and additive-intensive process with the refinery, during which undesirable by-products can arise under certain circumstances.
Our webinar is aimed at industry, regulatory and contract laboratories involved in the analysis of edible oils. With combustion elemental analysis, ICP-OES, AAS and UV/Vis molecular spectroscopy, our experts will introduce four techniques which enable precise, efficient, and standard-compliant quality and process analysis of edible oils. They will also show you tips and tricks on how to exploit the additional potential for optimising your analytical workflows regarding the targeted and economic use of elaborate specific techniques.
Learn how to use these techniques for a variety of oils at different steps in the value and processing chain, and how to achieve optimal results and increase sample throughput.
Key learning points:
<ul>
<li>Explore how to carry out the comprehensive analysis of toxic elements, process inhibitors, catalyst poisons as well as the macro-mineral content with ICP-OES.
</li>
<li>Learn what combustion analysis can achieve in quality control and process monitoring, especially regarding the formation of unwanted compounds during refining.
</li>
<li>Discover how to streamline analytical workflows with quick screens for organic and inorganic Sulfur and Nitrogen as sum parameters with combustion analysis.
</li>
<li>Find out how to assess oxidation in oils via DOBI index, and how to monitor the efficiency of bleaching in refinery using UV/Vis spectrometry.
</li>
<li>Discover what AAS can do as an alternative spectrometric element technique in the analysis of edible oils.
</li>
<li>Meet our experts and discuss with us in the Q&amp;A.
</li>
</ul>
<blockquote>
Presenter: Dr. Angela Gröbel (Senior Product Manager / Expert Supervisor Chemical Analysis)
</blockquote>
<blockquote>
Angela is a Senior Product Manager and Expert Supervisor for the combustion elemental analysis and related sample preparation portfolio. She holds a PhD in analytical chemistry. Angela developed Analytik Jena’s first trace elemental analysis product line for organic matter, later she became an expert in determination of Sulfur, Nitrogen, and Chlorine across a broad range of industry segments, including oil and gas, food and agriculture and environmental protection. Since 2013 Angela has been Product Manager, responsible for the entire combustion elemental analysis and related sample preparation portfolio.
</blockquote>
<blockquote>
Presenter: Dr. Holger Sievers (Application Specialist Chemical Analysis)
</blockquote>
<blockquote>
Holger Sievers is an Application Specialist at Analytik Jena. He holds a PhD from the Technical University of Munich in the field of ultra-trace analysis of noble metals which he obtained after his Master’s focusing on inorganic and analytical chemistry. Holger joined Analytik Jena in 2018 after seven years of teaching at the University and is currently engaged in chemical analysis. His primary focus lies in atomic absorption spectrometry and element analysis in general.
</blockquote>
<blockquote>
Presenter: Sandra Wunsch (Application Specialist Chemical Analysis)
</blockquote>
<blockquote>
Sandra Wunsch has been an Application Specialist for molecular spectrometry at Analytik Jena since 2016. She has intense in-depth knowledge in scientific and industrial application of molecular spectrometry, and extensive experience in the market and application fields, especially in the areas of environment and food &amp; agriculture. As a graduated Nutritionist, she is an expert in the use of chemical analysis and especially the determination of molecular compounds in the food industry and related fields.
</blockquote>

New Food: Edible oil processing: How to monitor elements and compounds

Edible oil processing: How to monitor elements and compounds

How to use these techniques for a variety of oils at different steps in the value and processing chain, and how to achieve optimal results.

While making a UV-Vis measurement is simple, making an accurate measurement requires an understanding of instrument parameters and their effects on the measurement. Parameters include Baseline correction, spectral bandwidth, data interval, and many additional settings.
This presentation will provide an insight into these parameters and more.
<blockquote>
Presenter: Mark Fisher, PhD (Application Engineer, Molecular Spectroscopy, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark, an Application Scientist for Agilent Technologies, has over 35 years of experience in molecular spectroscopy. He has held roles in Agilent&#39;s UV-Vis-NIR, fluorescence, and atomic absorption product portfolios. In addition to identifying industry trends and new business needs, Mark&#39;s responsibilities include application development, pre and post-sales support, as well as acting as a customer advocate for new product and technology opportunities. Mark received his doctorate in analytical chemistry from the University of Nebraska-Lincoln.
</blockquote>
<blockquote>
Presenter: Scott Melis, PhD (Application Scientist, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Scott Melis has a PHD in Physics from Georgetown University in Washington, DC and started with Agilent in 2021 as a Molecular Spectroscopy Application Scientist. In his graduate work, Scott studied nanoparticle formation and growth for a variety of applications. Projects that he worked with include developing processes to deposit and characterize semiconducting molecular nano-cocrystals for use in optoelectronic devices as well as controlling polymer nanoparticle size through rapid mixing conditions.
</blockquote>

Agilent Technologies: Understanding UV-Vis Instrumental Parameters

Understanding UV-Vis Instrumental Parameters

This presentation will provide an insight into baseline correction, spectral bandwidth, data interval, and many additional settings

Examining powdered samples in the presence of a reactive gas or at elevated temperatures could be a difficult measurement to make.
During this workshop, we will be looking at how to make such diffuse reflection measurements using a high-end Cary instrument and an accessory from Harrick Scientific known as the Praying Mantis. Tips and tricks of using this accessory will also be discussed.
<blockquote>
Presenter: Mark Fisher, PhD (Application Engineer, Molecular Spectroscopy, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark, an Application Scientist for Agilent Technologies, has over 35 years of experience in molecular spectroscopy. He has held roles in Agilent&#39;s UV-Vis-NIR, fluorescence, and atomic absorption product portfolios. In addition to identifying industry trends and new business needs, Mark&#39;s responsibilities include application development, pre and post-sales support, as well as acting as a customer advocate for new product and technology opportunities. Mark received his doctorate in analytical chemistry from the University of Nebraska-Lincoln.
</blockquote>
<blockquote>
Presenter: Sue Berets, PhD (Applications Scientist, Harrick Scientific Products)
</blockquote>
<blockquote>
Sue, an Applications Chemist for Harrick Scientific Products, has over 30 years of experience in accessories and optics for molecular spectroscopy. Sue received her doctorate in physical chemistry from Tufts University and has carried out basic research in theoretical and applied spectroscopy. Her responsibilities include technical and sales support, including accessing products for specific customer applications. She is involved in new product development, from initial concept to finished product, to meet the every changing applications needs of the market.
</blockquote>

Agilent Technologies: Unique Measurement Capabilities Using the Praying Mantis and a Cary UV-Vis system

Unique Measurement Capabilities Using the Praying Mantis and a Cary UV-Vis system

How to make such diffuse reflection measurements using a high-end Cary instrument and an accessory from Harrick Scientific known as the Praying Mantis.

Using the Praying Mantis and a Cary UV-Vis system

The Cary 7000 UV-Vis-NIR system can be used to collect high quality data which can then be used to characterize optical coatings.
We will examine the techniques for determining film thickness, index of refraction, etc. through the use of a Cary 7000 UV-Vis-NIR system.
<blockquote>
Presenter: Mark Fisher, PhD (Application Engineer, Molecular Spectroscopy, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark, an Application Scientist for Agilent Technologies, has over 35 years of experience in molecular spectroscopy. He has held roles in Agilent&#39;s UV-Vis-NIR, fluorescence, and atomic absorption product portfolios. In addition to identifying industry trends and new business needs, Mark&#39;s responsibilities include application development, pre and post-sales support, as well as acting as a customer advocate for new product and technology opportunities. Mark received his doctorate in analytical chemistry from the University of Nebraska-Lincoln.
</blockquote>

Agilent Technologies: Measuring and Analyzing Optical Coatings by UV-Vis-NIR

Measuring and Analyzing Optical Coatings by UV-Vis-NIR

Techniques for determining film thickness, index of refraction, etc. through the use of a Cary 7000 UV-Vis-NIR system.

UV-Vis spectrophotometric analysis is vital for Pharma and Biopharma labs, advancing drug development, quality control, and research.
Explore how the Agilent Cary 3500, in synergy with OpenLab Software, conquers challenges, ensures data integrity, and maximizes productivity. Its modular design tailored to your application needs streamlines complex measurements with minimal sample preparation. With an advanced xenon flash lamp offering a 10-year replacement warranty and no warm-up time, rest assured your sensitive samples are safeguarded for reliable and cost-effective analysis.
Learning Objectives:
<ol>
<li>Overcoming Challenges with Long Pathlength Analysis
</li>
<li>Latest Technology for Solid Sample Analysis
</li>
<li>Simultaneous Measurements with Temperature Control using Multicell
</li>
<li>Simplifying Complex Measurements for Protein and Biological Samples
</li>
<li>Enhancing Laboratory Productivity, Cost Saving, and Ease of Use
</li>
<li>Achieving Data Integrity and Compliance with Global Regulations
</li>
</ol>
Who should attend?
<ul>
<li>Pharma &amp; Biopharma professionals
</li>
<li>QA/QC laboratory analysts and managers
</li>
<li>Researchers, academicians and students in Life Sciences
</li>
</ul>
<blockquote>
Presenter: Shubham Sengupta (Product Specialist – Spectroscopy, Agilent Technologies)
</blockquote>
<blockquote>
Shubham Sengupta is a Spectroscopy Product Specialist at Agilent Technologies, with 14 years of diverse experience ranging from CRO to CTL. He holds a postgraduate degree in Chemistry from Indian School of Mines, Dhanbad (IIT-Dhanbad).
</blockquote>

Agilent Technologies: Powering UV-Vis Analysis in Pharma & Biopharma: Agilent Cary 3500

Powering UV-Vis Analysis in Pharma & Biopharma: Agilent Cary 3500

Overcoming Challenges with Long Pathlength Analysis.

Powering UV-Vis Analysis in Pharma & Biopharma

In this webinar we will show you how Unchained technologies can be paired together to form an Unchained "Ecosystem" and how this enables an efficient workflow for Drug Product Formulation development which leverages a high throughput approach, low volume microfluidics, and automation.Further, we will illustrate efforts to integrate with robotic automation on the front end of this workflow and automation of the "data analysis lake" on the back end. You will appreciate how IGM is leading the way to efficiently identify stabilizing formulations and rapidly identify stable monoclonal antibody (mAb) Drug Products.<blockquote>Moderator: Ann M. Thayer (Senior Correspondent, C&amp;EN)Presenter:&nbsp;Kevin Lance PhD (Marketing Manager, Analytical Instruments, Unchained Labs)Presenter:&nbsp;Christopher Mensch (Senior Director of Drug Product Research, Development , Manufacturing, and Supply, IGM Biosciences, Inc.)Presenter: Sameer Sachdeva &nbsp;(Drug Product Development Lead @ IGM Biosciences, Inc.)</blockquote>

Unchained Labs: 30 Formulations in 30 Hours: Deploying an Unchained Labs Ecosystem to Automate Formulation Screening for IgM mAb Drug Product Development

30 Formulations in 30 Hours: Deploying an Unchained Labs Ecosystem to Automate Formulation Screening for IgM mAb Drug Product Development

In this webinar we will show you how Unchained technologies can be paired together to form an Unchained "Ecosystem"

30 Formulations in 30 Hours

<h5>The Problem:</h5>Plasmid DNA (pDNA) is more popular than ever as a critical starting material for viral vectors and mRNA-LNPs, but its high cost means analytics need to deliver data from almost no sample. Knowing purity and total concentration is crucial when producing or working with pDNA, so you always need to monitor how much you have and when impurities are lurking. When samples aren’t pure pDNA, only looking at A260/230 and A260/280 ratios via spectrophotometry won’t help you find out the amount of plasmids you have and what else is really there.<h5>The Solution:</h5>Lunatic only needs 2 µL to quant and QC your pDNA, delivering spot-on results for up to 96 samples in just 10 minutes without any expensive dyes or standards. Besides QC’ing a boatload of plasmid preps, Lunatic also overcomes common hurdles to deliver results right on the money even when contaminants are present.<h5>The Proof:</h5>During this virtual seminar you’ll learn what Lunatic is all about and see how it quantifies plasmid DNA samples fast, accurately, and with just 2 µL of sample, no dilutions needed. We’ll check out how Lunatic’s lightning fast UV/Vis measurements spot any dirt in your samples, and take a sneak peek at other great tools to drive pDNA manufacturing success.<blockquote>Presenter:&nbsp;Kevin Lance PhD (Marketing Manager, Analytical Instruments, Unchained Labs)Presenter:&nbsp;Joanna Winkler (Application Scientist, Viral Vectors, Marketing Department, Unchained Labs)</blockquote>

Unchained Labs: Get a grip on your pDNA characterization with Lunatic

Get a grip on your pDNA characterization with Lunatic

You’ll learn what Lunatic is all about and see how it quantifies plasmid DNA samples fast, accurately, and with just 2 µL of sample

LCMS webinars focusing on UV-Vis - page 7