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We narrowed to 461 results for: MEA;

Showing: 61 - 80 of 461 results

  1. Viral Vectors 101: Viruses as Biological Tools

    Type
    Blog Post
    Published
    March 21, 2023, 1:15 p.m.
    ...organisms and cells they infect. In the lab, this means viruses can be engineered to be cell type specific...viruses that infect people in nature, extra safety measures, like replication incompetent viral particles,...are required. We will be covering these safety measures in a separate, upcoming post. If a viral vector...over adenovirus is their low immunogenicity, which means they do not stimulate a strong immune response when...

  2. Communicating Your Science With Help From ComSciCon

    Type
    Blog Post
    Published
    July 19, 2018, 1:12 p.m.
    ...In the lab, it might mean persuasively articulating why the results you've measured should change established... another person.  In an interview setting, this means persuading an employer that your past work has prepared... their team.  When you're writing a grant, this means convincing a committee that your research proposal...

  3. How to Make Friends and Meet People at a Scientific Conference

    Type
    Blog Post
    Published
    Aug. 7, 2014, 1:58 p.m.
    ... attend. Make a date or two for beer, coffee or meals with colleagues you know will attend the conference...conference. Invite others to join you. A fun, memorable meal is a great way to build relationships. Make a list...leave an empty seat” here. If there are communal meals, sit with people you don’t know and put your phone...move on to science. More great tips on conference meal etiquette are here. Don’t only talk about science...

  4. Antibodies 101: Selecting the Right Antibody

    Type
    Blog Post
    Published
    March 15, 2022, 1:15 p.m.
    ...processing, fixation, antigen-retrieval, and permeabilization will influence how the antibody interacts ... Selection Flow Chart    What does validated mean anyway? You now know that application validation...factor in antibody selection, but what does that mean? Not all validation is equal and you should think...proposed pillars.  Remember, validation does not mean that the antibody is guaranteed to work. Antibody-based...

  5. Antibodies 101: Secondary Antibodies

    Type
    Blog Post
    Published
    Dec. 21, 2021, 2:15 p.m.
    ...on the signaling molecule solely asmeans of visualization. This means that if all the primary antibodies...be time to look at the indirect approach - which means it’s time to talk about secondary antibodies. While...require their own incubation and wash steps, which means that indirect methods are often significantly longer...

  6. Hot Plasmids May 2018 - Optogenetics, Decaffeination, Biosensors, and Fluorescent Protein Tools

    Type
    Blog Post
    Published
    May 15, 2018, 12:43 p.m.
    ...this operon can serve as a living biosensor for measuring caffeine content in samples. The Barrick lab and...concentrations in several beverages could be estimated by measuring growth of the ΔguaB pDCAF3 strain. Find the decaffeination...fLuctuation INcrease by Contact (FLINC)-based biosensors measure fluctuations of TagRFP-T fluorescence intensity...use to detect PKA activity can be generalized to measure phosphatase activity, second messenger activity...

  7. The AAVantages of AAV in CRISPR Screens

    Type
    Blog Post
    Published
    Feb. 4, 2025, 2:15 p.m.
    ...mice, AAV is almost entirely non-immunogenic — meaning when conducting in vivo CRISPR screens, AAV is ...types. The combination of serotypes and psuedotypes means you can customize your CRISPR screen to a high degree...improve your selection pool for downstream NGS and means you can use smaller volumes of your library for ...while AAV only has approximately 4.7 kb — which means that when using Cas9, you’re already almost out ...

  8. Mobile-CRISPRi: Bringing CRISPRi to Diverse Bacteria

    Type
    Blog Post
    Published
    April 4, 2019, 12:53 p.m.
    ...However, the rate of transfer was variable. They measured transfer rates by comparing the number of colonies...isolated from cheese. Knockdown efficiency, as measured by knockdown of a constitutely expressed RFP reporter...median knockdown of ~40-fold across all species measured. Beyond understanding the basic biology of bacteria...frequency of each of the 40 library strains was measured after 6 and 12 generations with or without induction...

  9. Transferable Skills Guide: Managing a Team

    Type
    Blog Post
    Published
    Jan. 30, 2018, 2:42 p.m.
    ...manager: yes, being a manager means being someone’s boss. But it does not mean shouting orders and trying...manager with your own team! But what does it really mean to manage a team? If your graduate school experience...just like you are supporting your report(s). This means that you should be able to go to your manager for...

  10. Truncated gRNAs for Regulating Gene Expression

    Type
    Blog Post
    Published
    Jan. 10, 2017, 3:37 p.m.
    ...facilitated the development of a simple and scalable means of making targeted genetic edits. Cas9 is a DNA .... Cas9’s ability to alternately serve both as a means of modifying DNA and of modulating gene expression...lines or transgenic animals expressing dCas9 as a means of modulating gene expression (6). Altering the ...sites of interest thus represents a straightforward means of exerting tight control over Cas9 nuclease activity...

  11. Viral Vectors 101: Voltage Indicators

    Type
    Blog Post
    Published
    Jan. 30, 2024, 2:15 p.m.
    ...electrical potential. Thankfully, there is a tool to measure these electrical events! Voltage indicators are...They can be targeted to the plasma membrane to measure membrane potential and can also be directed to ...vitro and a small molecule is added exogenously to measure a phenotypic response in the form of fluorescence...Indicators As previously mentioned, cellular voltage is measured at the cell membrane, and this voltage is particularly...

  12. Don’t FRET: Bimolecular Fluorescence Complementation Makes Visualizing Protein-Protein Interactions Easy

    Type
    Blog Post
    Published
    Aug. 27, 2020, 1:15 p.m.
    ...associating with one another — which means it cannot be used to measure the dissociation of PIPs. Thus, whereas...ratios) to generate useable data. What’s more, measuring and quantifying FRET is often easier said than...BiFC experiments only require that you image and measure the fluorescence of a single FP. Your control construct...

  13. Better Dyeing Through Chemistry & Small Molecule Fluorophores

    Type
    Blog Post
    Published
    Sept. 8, 2016, 2:30 p.m.
    ...their small size and membrane permeability (Figure 2c). These cell-permeable Janelia Fluor (JF) dyes have...small-molecule labeling strategies is fluorogenicity, meaning the ligand exhibits low fluorescence when free ... chemistry, small size, brightness, and cell permeability. In past decades, further refinements to this...

  14. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

    Type
    Blog Post
    Published
    May 15, 2014, 3:33 p.m.
    ... the presence of oxygen during maturation. This meant that the protein could be taken directly from A....can easily utilize GFP-containing plasmids as a means to many functional ends. We’ve listed our favorites...Optogenetics: Scientists can use light to detect, measure, and control molecular signals, cells, and groups...protein to use in your upcoming experiments. In the meantime, if you haven't checked out Gal's blog, you should...

  15. Negotiating Work and Life: How to Find the Joy

    Type
    Blog Post
    Published
    March 20, 2014, 3:04 p.m.
    ...of life Sometimes, work has to come first. That means you and/or your spouse won’t be at every school ... should be sharing it absolutely equally, which means you only have one-half of the guilt. You can handle...parent(s), the sooner your kids can make a decent meal, fold their laundry, take public transportation,... to dinner this week. One swim lesson missed can mean a world of mental relaxation. And, I’m not sure ...

  16. To Codon Optimize or Not: That is the Question

    Type
    Blog Post
    Published
    Nov. 12, 2020, 2:15 p.m.
    ...that encode 20 amino acids and three stop codons, meaning that the same amino acid can be encoded by more...avoid certain codons altogether.  So what does this mean for a molecular biologist who wants to express genes...that corresponds to the anticodon sequence. That means there are 61 possible tRNAs. Cells however, may ...PM, Li W-H (1987) The codon adaptation index-a measure of directional synonymous codon usage bias, and...

  17. An Inside Look into Addgene's Dev Team

    Type
    Blog Post
    Published
    Jan. 23, 2020, 2:45 p.m.
    ... in our software. What this means for us is that we can focus on the meat of the software and not waste...or you could choose to do the dishes after every meal and be reassured that your dirty dishes won’t tumble...Python 3.5. Python 2.7 is retiring this year, which means there will be no further updates, security or otherwise...

  18. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ...detectable effect on cell viability – meaning there was no measurable cell toxicity – using Cas7-11. This...integration was observed in non-dividing cells, meaning that this system wasn’t dependent on the cell’s...resolved without any toxic effects to the cell. This means almost no indels and no off-target effects, giving...

  19. How to Write a Scientific Review Article

    Type
    Blog Post
    Published
    Feb. 16, 2017, 3:30 p.m.
    ...But before I do that, let me say that I was by no means an expert on this topic when I set out to write ...managing a lot of references. I cite as I write, meaning I use the software to add the citations in real...write. Things are going to get a little crazy (meaning you are probably going to cite hundreds of references...begin to hate the article. This is normal and it means you’re on the right track!  Get feedback After you...

  20. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

    Type
    Blog Post
    Published
    Sept. 13, 2018, 1:55 p.m.
    ...guides do not target any site in the genome. This means that while they control for many of the effects ...when really it’s not). In practical terms, this means that using safe-targeting guides as a control will...References 1. Morgens, David W., et al. "Genome-scale measurement of off-target activity using Cas9 toxicity in...Central PMCID: PMC3988262. 4. Hart, Traver, et al. "Measuring error rates in genomic perturbation screens: gold...
Showing: 61 - 80 of 461 results