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Showing: 121 - 140 of 446 results
  1. How Dry Ice Affects Viral Vector Sample pH & How to Avoid It

    Type
    Blog Post
    Published
    June 20, 2017, 2:30 p.m.
    ...keep viruses frozen during shipment was having an impact on the samples. We therefore devised a few experiments...solution thawed, as the CO2 was confined to the tube headspace when the samples were frozen. This was clear by...tubes prior to thaw released the CO2 from the headspace, thus mitigating the pH effects of dry ice storage...
  2. Viral Vectors 101: The AAV Retrograde Serotype

    Type
    Blog Post
    Published
    April 27, 2023, 1:15 p.m.
    ...Discrepancies in transduction efficiency can have a major impact on experimental design and interpretation of results...transduced by the vector. One method for minimizing the impact of this phenomenon is to use a retrograde recombinase-expressing...cell bodies of the projection neurons reside.   Impact for scientists While the mechanisms by which retrograde...
  3. Multiplex Genome Editing with CRISPR-Cpf1

    Type
    Blog Post
    Published
    May 9, 2017, 2:12 p.m.
    ...Usually Destroyed Yes, Cpf1 cleaves 5' of the protospacer Multiplexing CRISPR-Cas9 options before Cpf1...which are often more difficult to transfect or package into viral vectors. Cas9 multiplexing vectors are...bind and cleave the lentiviral RNA, preventing packaging of the virus.  Reversing the orientation of the...
  4. How to Keep a Lab Notebook for Bioinformatic Analyses

    Type
    Blog Post
    Published
    June 2, 2016, 2:30 p.m.
    ... by spaces. File names with more than one word should be named in the camelCaseFormat since spaces between...the basics. However, these notes take up a lot of space and don’t tell you why you did something or what...
  5. Using AAV for Neuronal Tracing

    Type
    Blog Post
    Published
    Aug. 9, 2018, 1:04 p.m.
    ... applied, but these methods can have a negative impact on cellular health. Another limitation of traditional... them capable of diffusing in the extracellular space; they also have low immunogenicity and cellular ...less likely to be sequestered in the extracellular space. In addition, rAAV2-retro’s altered amino acid sequence...diffuse long distances within the extracellular space along an axon, this does not seem to be the case...
  6. Stabilized Bacterial Promoters: Constant Gene Expression at any Copy Number

    Type
    Blog Post
    Published
    Sept. 4, 2018, 12:53 p.m.
    ... resulting in variable gene expression that can impact observed phenotypes. Factors such as the growth...medium, growth temperature, and growth rate can all impact plasmid copy number in a cell. One can attempt... from a plasmid to the genome without greatly impacting the level of gene expression. For example, the...
  7. Developing Lab Management Software for Biology

    Type
    Blog Post
    Published
    Aug. 25, 2016, 2:30 p.m.
    ...at some point, decide early on what to do in a namespace collision. It may even be worth it to have extra... you're solving, but consistency is key. Some namespace collisions you may encounter: vector, sequence...Use tried-and-true tools We use Python, Django, Apache, and MariaDB. Using tried-and-true tools means ...
  8. Plasmids 101: Cre-lox

    Type
    Blog Post
    Published
    Jan. 13, 2015, 3:47 p.m.
    ...repeats separated by an 8-bp long asymmetric core spacer sequence. The asymmetry in the core sequence gives... double-strand DNA break occurs within the core spacer of each loxP site and the two strands are ligated...been created, which contain a unique asymmetric spacer "NNNTANNN", where "N" indicates which bases may...
  9. 5 Steps to Writing Grant Proposals for Grad Students

    Type
    Blog Post
    Published
    Feb. 11, 2014, 12:13 p.m.
    ... and impact the field - its encouraged to dream big! It is crucial that the goal and the impact of the...research plan Most grant applications restrict the space available to describe the proposed work. Thus, every...
  10. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    .... https://pubmed.ncbi.nlm.nih.gov/24390935/ Hypercompact genome editor CRISPR-Casɸ By Melina Fan The ...toolbox with their discovery of CRISPR-Casɸ, a hypercompact genome editor from the Biggiephage clade of ...the Doudna Lab. Scientists looking for more compact genome editors due to delivery constraints and ...
  11. Tips for Titering Your Lentiviral Preps

    Type
    Blog Post
    Published
    March 15, 2016, 2:30 p.m.
    ... arrived; you’ve painstakingly cared for your packaging cell line, prepped your DNA, transfected and harvested...original plasmid which can over-inflate results. A packing vector deficient in reverse transcriptase will ...integration events. In addition, promoter choice can also impact transgene expression. The most accurate method ...
  12. The Scientific Conference Poster Session: Tips for Success

    Type
    Blog Post
    Published
    Aug. 29, 2019, 12:50 p.m.
    ...will likely be spending a few hours on your feet. Pack water and snacks to keep you energized throughout...session, bring extra clips to hold up your poster, and pack a few business cards to tack up next to your poster...hearing the highlights so that you can appreciate the impact of the project as a whole. In addition to time ...
  13. 10 Basic tips for mammalian cell culture

    Type
    Blog Post
    Published
    July 12, 2018, 1:09 p.m.
    ...Clutter not only makes it difficult to clean your workspace properly, but can also disrupt the laminar air...materials into the hood. This will give you enough space to move around freely without causing spills. Also... than 80-85% confluent because cells like their space. If they reach confluence, they stop growing (contact...
  14. Cloning Mammalian Cells with the Agarose Method

    Type
    Blog Post
    Published
    Sept. 7, 2017, 12:17 p.m.
    ...a 10 cm dish in 15- 20 minutes- a far more rapid pace than using cloning rings. A picture of a 60 mm dish...the plates that do not appear to be yielding well-spaced clones. For rapidly growing cells we sometimes ...the use of an electronic pipettor with variable spacing (such as the Viaflo from Integra Biosciences) to...
  15. Twenty Years of Addgene Sharing: CRISPR

    Type
    Blog Post
    Published
    April 18, 2024, 1:15 p.m.
    ...are sharing stories of our repository’s positive impact on science and scientists around the globe. Our...CRISPR plasmids to labs in ~100 countries.  The impact Addgene’s CRISPR collection contained 197 plasmids...citations.  CRISPR is a story that centers around the impact of science, but our data makes it clear that it...
  16. Interview: Nicola Patron on Plant Synthetic Biology, MoClo, and More

    Type
    Blog Post
    Published
    June 12, 2014, 3:30 p.m.
    ...other people to do that too. We don’t have the capacity to send tools out to people ourselves, but we’...committees, and how the culture of the university impacts the number of women reaching senior positions. ... those amazing students that want to have a big impact on the world and tell them to work in plant science...
  17. Summer SciComm Series: Modes of Communication

    Type
    Blog Post
    Published
    July 1, 2022, 1:15 p.m.
    ...interested in? Math, sarcasm, romance, and spacecraft! Image courtesy of xkcd.com Science communication... lectures, presentations, etc… Low (except for space) Real-time audience engagement and response. High...fear. Can be discouraging to build audience. Need space & higher entry barrier for audience versus passive...
  18. An Introduction to Adenovirus

    Type
    Blog Post
    Published
    Oct. 3, 2023, 1:15 p.m.
    ..., including the E1 region). The space in the viral particle’s capacity that is made available by this ...genome, and adenoviral vectors all have a genomic capacity that is much higher than other viral vectors (...
  19. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    Published
    Feb. 27, 2018, 2:04 p.m.
    ...antibody (HCab), which are unique to camels, llamas, alpacas and other camelids. In terms of structure, HCabs...have done the hard work for you by immunizing an alpaca, isolating HCab antibodies from its serum, and ...for generating nanobodies are outlined below; no alpaca required. Decide Which Nanobody To Use: The table...
Showing: 121 - 140 of 446 results