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  1. Droplet Digital PCR for AAV Quantitation

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    Blog Post
    ...up with poor droplet quality. Using a droplet generator, the sample and the droplet generation oil are...Pipette slowly If you are using a manual droplet generator, you will have to be careful about transferring...transferring your droplets from the droplet generator to the PCR plate. Maintaining a high droplet count is important...sample. Even if you are using an automated droplet generator, you should avoid pipetting too quickly when making...
  2. Tips from the Repository Trenches: Using Barcodes to Track Samples

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    Blog Post
    ...is the Laboratory Operations Manager at Addgene.  In addition to helping with daily laboratory operations...through barcoded tubes that are scanned into our Laboratory Information Management System (LIMS), a database...operations, she also works on improving laboratory efficiency through automation.       More Resource Avaliable...
  3. A Career in Grants: How To Become a Grant Professional

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    Blog Post
    ...amount of grant funds available and the increasing regulatory process for grants has fostered the demand for...professional. Dr. Cook served as a principal investigator for several research grants. One of the benefits...benefits of being a principal investigator is that you are asked to review grant proposals from others. ...worked for a health department and then for the regulatory services department as our healthy homes program...
  4. Hot Plasmids Spring 2024

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    Blog Post
    ... vector preps expressing the Voltron2 voltage indicator, created by the Schreiter Lab and the GENIE Project... available! Building on their earlier Voltron indicators (a fusion of Ace2N and HaloTag, Figure 4), they...The same A-to-D mutation in the related voltage indicator Ace2N-mNeon also led to similar improvements in...fluorescent signal at baseline voltage), the investigators found that administering these AAVs with a dilute...
  5. What's Your Organism? Expanding Genomic Tools via the NSF EDGE Program

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    Blog Post
    ...recently was invited to attend the first Principal Investigator meeting of the NSF EDGE (Enabling Discovery ...parenting strategies and make important ecological indicators since species live in water and on land. Current...that tastes yucky (and is poisonous) for bird predators - birds eat a caterpillar once, vomit, and never... expensive. They are using a cool fluorescent indicator system to rapidly identify recombinants. Arthropods...
  6. Finding nucleic acids with SHERLOCK and DETECTR

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    Blog Post
    ...time-consuming, and complex to use outside of standard laboratories. In the case of the COVID-19 pandemic, qPCR ...platforms to reliably detect nucleic acids at the atomolar level. The Zhang lab has adapted natural RNase...reporter enables SHERLOCK to detect DNA or RNA with atomolar sensitivity and single base pair mismatch specificity... of HPV, HPV16 and HPV18, from human cells, at atomolar levels, within one hour. DETECTR thus has the ...
  7. The Challenges of Cell Culture

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    Blog Post
    ...simple as a piece of paper on the front of the incubator containing the passage number, cell line, and ...book and on the actual flasks of cells in the incubator). This means any other scientist who wishes to...The LGC Group also provides standards and has laboratories to carry our independent quality control for...culture contamination." Archives of pathology & laboratory medicine 133.9 (2009): 1463-1467. PubMed PMID...
  8. Five Popular Model Organisms, Part 2

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    Blog Post
    ...characteristics that make them ideal for studying in a laboratory environment. We’ve covered five model organisms...have been specifically developed to thrive in laboratory settings. One of its most attractive features...characterized genome, and is easily maintained in a laboratory environment. What sets Arabidopsis apart from.... The Norway rat, from an obnoxious pest to a laboratory pet. ELife, 9. https://doi.org/10.7554/elife.50651...
  9. SARS-CoV-2/COVID-19 Detection Methods Based on CRISPR/Cas

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    Blog Post
    ... 37°C heat block, LED blue light illuminator or UV light illuminator. Approach: Highly similar to the ...method based on CRISPR-Cas12. Cold Spring Harbor Laboratory. https://doi.org/10.1101/2020.02.29.971127 Rauch...SARS-CoV-2 Genetic Material. Cold Spring Harbor Laboratory. https://doi.org/10.1101/2020.04.20.052159 Zhang...
  10. CRISPR 101: Multiplex Expression of gRNAs

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    Blog Post
    ...transcriptional repressor), and dCas9-VP64 (transcriptional activator)-containing plasmids. Each destination vector ...one. This approach is especially useful for combinatorial analyses. For example, if you were to develop...A versatile modular vector system for rapid combinatorial mammalian genetics.” Journal of Clinical Investigation...Cress, Brady F., et al. “CRISPathBrick: Modular Combinatorial Assembly of Type II-A CRISPR Arrays for dCas9...
  11. New Viral Vectors - Summer 2024

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    Blog Post
    ...pAAV-Ef1a-fDIO-ChrimsonR-tdTomato AAV9 Controls Jensen New serotype pAAV-CAG-2xNLS-tdTomato-WPRE-hGHpolyA AAV9...multiple serotypes pAAV-CAG-FLEX-rc [Jaws-KGC-tdTomato-ER2] AAV5, AAV8 Optogenetics Boyden New serotypes...
  12. Fluorescent Proteins 101: History of Fluorescent Proteins

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    Blog Post
    ...ways scientists have adapted them for use in the laboratory. The discovery of GFP The story of how fluorescent...sequence. Soon after that, in 1994, Prasher’s collaborator Martin Chalfie expressed GFP in exogenous organisms...studying it grew. In particular, studies in the laboratory of UCSD biochemist Roger Tsien resulted in much...
  13. X-CHIME: Context Dependent Germline Knockout in Immune Cells

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    Blog Post
    ...transduction of Cas9-expressing (Rosa26-Cas9) hematopoietic stem cells with a lentiviral vector containing...LaFleur is a Postdoctoral Fellow in Arlene Sharpe’s laboratory at Harvard Medical School and is interested in...G., & Sharpe, A. H. (2024). X-CHIME enables combinatorial, inducible, lineage-specific and sequential ...
  14. Six Spooky Science Stories and Halloween at Addgene

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    Blog Post
    ...Vampire bacteria Vampirovibrio chlorellavorus is a predatory bacteria that attaches to the cell wall of green...forcing it out of hiding to become exposed to predators. Hungry birds spots the “caterpillar” and then... "Back from the dead; the curious tale of the predatory cyanobacterium Vampirovibrio chlorellavorus." ...
  15. Using Ultrasound to Image Bacteria in vivo: Acoustic Reporter Genes

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    Blog Post
    ... interpret signals from these reporters. Lack anatomical context/spatial localization: In vivo imaging...years to clinically treat enteric infection and inflammatory bowel conditions. In these experiments, arg1...abdomen. arg1 signal, however, can be overlaid onto anatomical ultrasound imaging to show where the bacteria...
  16. Oh, The Places You Can Go: Careers in Science Communication - Curriculum Development

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    Blog Post
    ...department.” Caitlin does this by acting as a facilitator between her team, the sales department, and operations...business.” Caitlin’s advice for budding science communicators: “My recommendation would be to take any opportunity...education tools? Check out this Addgene podcast with educator and science rap mastermind Tom McFadden Get tips...
  17. Tips for Improving Your Next Manuscript

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    Blog Post
    ...scientists. Over the course of the class, the moderator discussed individual sections of a paper, the ...quizzes and discussion on that week’s topic by the moderators. The assignments, which consisted of reading ...course was breaking up into focus groups with a facilitator. In the focus groups, we were required to critique...
  18. The Blue Flame Award: Celebrating Addgene's Most Requested Depositors

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    Blog Post
    ...passion, and dedication to sharing epitomized by the creators of these plasmids with the first annual Blue Flame...has “literally enabled sharing with 100's of investigators worldwide. Now everything from every paper is...Flame awardee Sophien Kamoun of the Sainsbury Laboratory in Norwich, UK: “We’re very pleased to distribute...
  19. Viral Vectors 101: Parts of the AAV Transfer Plasmid

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    Blog Post
    ...plasmid. Parts shown in grey are optional cis-regulatory elements.   Key elements of an AAV plasmid...plasmid harbors non-coding sequences. Other cis-regulatory elements Next let’s talk about some of the elements...Woodchuck Hepatitis Virus (WHP) Posttranscriptional Regulatory Element (WPRE) forms a tertiary structure when...
Showing: 181 - 200 of 639 results