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We narrowed to 650 results for: CHI;

Showing: 121 - 150 of 650 results

  1. FLEx Technology and Optogenetics: Flipping the switch on gene expression with high spatial and temporal resolution

    Type
    Blog Post
    ...specificity far greater than the one that can be achieved using pharmacological or electrophysiological ...., 2016; Hudry and Vandenberghe, 2019). How to achieve strong opsin expression in specific neuronal cell...expression in vivo (Schnütgen et al., 2003). This is achieved through site-specific recombinases such as Cre...expression in specific neuronal cells? This can be achieved using Cre-dependent viruses, such as the optogenetic... functional topography of the neural circuit architecture of the brain regions associated with motivated...love for educational science led her to pursue a teaching career, and she now is a very happy scientific... and approaches for optogenetics." Biological psychiatry 71.12 (2012): 1033-1038. PubMed PMID: 22480664...

  2. RNA Interference in Plant Biology: New Tools for an Old Favorite

    Type
    Blog Post
    ...traditional cell culture, enriching your active RNAi subpopulation can be easily achieved through fluorescence-activated...resulting in processing by the endogenous RNAi machinery. Alternatively, endogenous miRNA precursors can...initial state of the dsRNA upon activating the RNAi machinery (long dsRNA, typically hairpin RNA, or artificial...gene target to silencing of the reporter. This is achieved at the level of the DNA construct, where your ...itself is indicative of active gene silencing. We achieved this by creating constructs that directly fused...Polytechnic Institute where he investigated how plants achieve polarized cell growth in the lab of Luis Vidali...

  3. DAP arrays for multiplex gene editing

    Type
    Blog Post
    ...gRNAs are released by endogenous tRNA processing machineries, specifically, RNaseZ and RNaseP. Although the... for gene editing. They named this new array architecture the DAP array, short for “drive-and-process....length of 5’ leader sequences of a given tRNA to achieve the highest efficiencies of multiplex editing at...also engineered a DAP array for prime editing, achieving up to 3-loci MPE with similar high efficiencies...payloads. Different from existing multiplex array architectures, including previous tRNA-gRNA arrays, that rely...Comparison of previous representative dual-gRNA architectures with DAP array   Qichen Yuan is a PhD...

  4. Photosensitizer Induced Cell Ablation with FAP-TAP MG-2I-dL5**

    Type
    Blog Post
    ...than KillerRed, with KillerRed reaching greater than 75% photobleaching after just 1 minute of exposure...produce ROS - targeted cell ablation via ROS is achieved through localized expression of the FAP. A new...portion of the complex and is derived from the malachite green (MG) dye, but has been modified with the...longer exposure times (5 minutes vs 10 seconds) to achieve the same level of killing as Mg-2I-dL5**. Mg-2I-dL5...exposure. MG-2I-dL5** experienced minor bleaching after longer exposure times. Additionally, KillerRed requires...

  5. 5 Great Apps for Lab Life

    Type
    Blog Post
    ...provide them on your smart phone. 1. Lab Archives by LabArchives The single, most important part of lab ... life. These apps prevent you from constantly searching the interwebs for lab resources, and instead conveniently...lab life is the lab notebook. Lab Archives is a multipurpose application that allows you to share your data...notebook from your smartphone to your computer. Lab Archives will help both you and your lab stay organized...from 2 years ago. The free subscription to Lab Archives allots for 25 MB of space per user, but, if you...

  6. Q&A with Karen Katz and Carl Paratore, the Newest Members of the Addgene Board of Directors

    Type
    Blog Post
    ...immensely. Paratore: I have two children active in sports, so I enjoy watching their games.  If I’m not at....Paratore: I’ve certainly had a front row seat watching the international growth through my work on the...graduated with highest honors from the University of Michigan, Ann Arbor and obtained her J.D. from Boston University...CISA), and certified health insurance executive (CHIE). He is a member of both the Internal Institute ...Food Bank and participates locally in Read To A Child's "Lunchtime Reading Program" in Cambridge, MA. ...

  7. Antibodies 101: Isotypes

    Type
    Blog Post
    ...What is an Antibody animation!  Isotype switching Isotype switching occurs when a B cell changes which heavy...other isotype heavy chain constant domains. This switching helps B cells adapt during the course of an immune...the effector function of the antibody. Isotype switching is caused by a specialized type of DNA recombination...IgG are deleted.     Figure 2: Isotype switching requires DNA recombination of the antibody gene...constant domain gene. This process is called isotype switching and results in the B cell expressing an antibody...

  8. With an Eye Towards the Future, We Look Back at the March for Science

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    Blog Post
    ...-based policy and legislation hit home hard in Michigan, where programs like the Great Lakes Restoration...planet. And as we rallied on the University of Michigan campus speakers thoughtfully reminded us to use...a postdoctoral researcher in the University of Michigan Department of Astronomy. She studies how planets...tirelessly to get the publications, grant funding, and teaching experience that it takes to complete your resume...march ended that I loved - there were booths for children to learn little things about science. We need ...to be the perfect opportunity to cement in my children's heads the importance of science and positively... that most who participated will consider that marching in and of itself will be enough. IT WON’T! Promoting...

  9. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

    Type
    Blog Post
    ...transcription machinery.   Well, I’ve got some good news: complete DNA demethylation can be achieved by dCas9...can be achieved by fluorescence-activated cell sorting, and stable gRNA expression can be achieved using... activity. They interact with transcriptional machinery to modify local gene expression, confounding any...doi.org/10.1016/j.neuron.2013.08.032.  Morita S, Noguchi H, Horii T et al. (2016) Targeted DNA demethylation...

  10. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

    Type
    Blog Post
    ...for in vivo delivery of advanced genome editing machinery such as CRISPR-Cas. Figure 1: Schematic...transduced to target cells. Within target cells, Cas9 machinery is transiently expressed and binds to target DNA...rates of targeted mutagenesis similar to those achieved by isogenic AdVs encoding TALENs targeting the...). If sufficient gene transfer and knock-in is achieved, producer cells could produce corrective amounts...potential platform that could be realized via simple switching of the relevant gRNAs and donor DNA Adenoviral...Han Y-C, Ogrodowski P, Crippa A, Rekhtman N, de Stanchina E, Lowe SW, Ventura A (2014) In vivo engineering...

  11. Google Forums Round Up: First Impressions of NgAgo

    Type
    Blog Post
    ... that many researchers were having difficulty achieving indel formation (gene disruption) with this new...most of the respondents have been struggling to achieve genome editing with NgAgo, this does not mean the...successful indel generation and epitope knockin was achieved by a few respondents suggesting that NgAgo can...most of the researchers surveyed here could not achieve indels with the NgAgo system indicates that it ...which might be rapidly degraded by the cellular machinery, leaving a small amount of active NgAgo/ssDNA ... cell. As proposed in the original article, to achieve greater efficacy, researchers will have to carry...

  12. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    ...domain. Feng Zhang's group utilized the bi-lobed architecture of Cas9 to engineer a series of "split" cas9...must not act on any of the other bits in order to achieve accurate and reliable multi-bit memory. To this...cassette, you can specifically express your new chimeric protein in a variety of model systems. The MultiSite...but a translated mRNA will be red. This system achieves great specificity and resolution by using 6-12...mitochondrial subpopulations within the same cell; by photoswitching PSmOrange and photoactivating PAGFP in separate...screened for speed and voltage sensitivity. This hierarchical screen led to the generation of two enhanced... CMV-LUC2CP/intron/ARE). The Luc-I intron is a chimeric β-globin/immunoglobulin intron that has been commonly...

  13. Plasmids 101: Broad Host Range Plasmids

    Type
    Blog Post
    ... plasmids to utilize diverse host replication machinery. For instance, the ori typically contains iterons...However, if plasmids have their own replication machinery such as Rep or other initiator proteins, they ...vulgaris, Erwinia carotovora, E. chrysanthemi, Escherichia coli, Gluconacetobacter xylinus, Gluconobacter...E. herbicola, E. rubrifaciens, E. stewartii, Escherichia coli, Klebsiella spp., Legionella pneumophila...spp., Brucella spp., Caulobacter crescentus, Escherichia coli, Gluconacetobacter xylinus, Paracoccous ...integron promoter-based expression systems for Escherichia coli and Agrobacterium tumefaciens. 3 Biotech...

  14. Antibodies 101: Reading a Flow Plot

    Type
    Blog Post
    ... passes through the machine’s lasers and gives off a signal read by the machine’s sensors. (Usually this...or unbound antibodies.) Each event read by the machine is plotted as a dot on an X,Y axis to generate ...variations in fluorescent signals, and how the machine reads/interprets the signals, the axis is instead...populations. This shape is called a ‘gate’; it tells the machine that everything inside the gate is one population...Doloff, J., Bose, S., Vegas, A., Ma, M., Sahay, G., Chiu, A., Bader, A., Langan, E., Siebert, S., Li, J.,...

  15. Transferable Skills Guide: External Collaborations

    Type
    Blog Post
    ...become popular. There are only so many methods and machines one team can learn so linking together expert ... a mailing list. This project gave me practice reaching out to other scientists, being clear about what...beyond your organization and/or scientific field. Reaching out to people who have little in common with you...starting a collaboration with a colleague. However, reaching outside your knowledge sphere allows you to connect...time to talk or to at least read my emails. Then pitching myself and the event was very difficult and somewhat...experience during my graduate studies in regard to reaching out to new people, checking in regularly, and ...

  16. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    ...from our 'Chimeric RNA' design (meaning the mature processed form of crRNA is fused chimerically to a mature...experiments, consider that wildtype Cas9 with optimized chimeric gRNA has high efficiency but has been shown to...which has comparable efficiency to the optimized chimeric design but with better accuracy (in other words...nickase system is that you can express two different chimeric gRNAs with the Cas9 nickase which will together...site with efficiency similar to using a single chimeric gRNA. At the same time, the off-target effects...L. I., Myers, R. H., Lindquist, S., Zhang, L., Guschin, D., Fong, L. K., Vu, B. J., Meng, X., Urnov, F...

  17. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

    Type
    Blog Post
    ...tag. Many thanks to our guest blogger, Joachim Goedhart! Joachim Goedhart is an assistant professor at ...This post was contributed by guest blogger Joachim Goedart, an assistant professor at the Section of ...living cells and organisms. Both components of the chimera are encoded by DNA. Since researchers can generate...from a plasmid-based system to assess whether the chimera is still functional. Final words on fluorescent...fluorescent probes. You can follow him on twitter: @joachimgoedhart.   References Adjobo-Hermans, Merel JW, et ...

  18. Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus

    Type
    Blog Post
    ...Sommella A, Colecchi L, Rossi S, Simonelli F, Giunti M, Bacci ML, Polishchuk RS, Auricchio A (2015) Improved...genes into AAV First, some history. In 2008, the Auricchio lab decided to solve the issue of “tiny vector...tested and with the optimal sequences, the group achieved ~80% of muscle cells expressing mini-dystrophin...Cutillo L, Sparrow JR, Williams DS, Bennett J, Auricchio A (2008) Serotype-dependent packaging of large..., Giunti M, Palfi A, Farrar GJ, Polishchuk R, Auricchio A (2013) Effective delivery of large genes to ...

  19. SARS-CoV-2/COVID-19 Detection Methods Based on CRISPR/Cas

    Type
    Blog Post
    ...typical PCR machines, the authors use affordable, field-ready, Bluetooth-enabled PCR machines that can even...approximately 1-2 hours Equipment needed: Mini PCR machines by DIY-Bio, P51 cardboard fluorescence visualizer...mentioned, likely ~1-2 hours Equipment needed: PCR machines/Heat blocks, Lateral flow strips, Agarose gel .../2020.04.07.028167 Broughton JP, Deng X, Yu G, Fasching CL, Servellita V, Singh J, Miao X, Streithorst...Miller S, Pan C-Y, Guevara H, Wadford DA, Chen JS, Chiu CY (2020) CRISPR–Cas12-based detection of SARS-CoV...

  20. March for Science

    Type
    Blog Post
    ...scientists and non-scientists alike are marching for. I will be marching to advocate for science education ...is a Pro-Science and Pro-Evidence march. Who is marching and why? Who? All sorts of people are choosing...promises more cuts (3, 12, 13, 27). In order to achieve the breakthroughs, technologies, and treatments...exhaustive list and every marcher is not necessarily marching for every cause. The references provided also ...opinions or research on each topic. Resources for marching and advocacy If the march for science rallies ...

  21. Is this the right place for me? 8 tactics for choosing a lab

    Type
    Blog Post
    ...   Are you an only child and used to a lot of attention? Or are you one of 8 children and used to getting... with a new PI. I realized that as a first born child, I would thrive on this level of attention and interaction...role model Make sure the mentors you choose are teaching the stuff you want to know and display character... a mentor that sees you only as a paper making machine. Choose one that is a true mentor, supporting career...collaboration? If you are considering a career at a small, teaching college you might want to consider less expensive...

  22. Q&A With Julie Cicalese, the Newest Member of the Addgene Board of Directors

    Type
    Blog Post
    ...Addgene Board of Directors. Cicalese served as the Chief Human Resource Officer for Harvard Medical School...Giving, an organization that raises money for childhood cancer through the sale of art. About two years...about Julie Cicalese  Ms. Cicalese served as the Chief Human Resources Officer for Harvard Medical School...Giving, a 501c3 public charity raising funds for childhood cancer through the sale of art. Past volunteer...Marathon for the MGH Pediatric Oncology and the Chicago Marathon to benefit Neurofibromatosis, New England...

  23. Using AAV for Neuronal Tracing

    Type
    Blog Post
    ...understanding the brain’s function is knowing its architecture, in particular the connections between different...two pathways also use different cytoskeletal machineries to facilitate transport: retrograde transport...interaction with uptake or intracellular transport machinery. Addgene offers viral preparations of AAV2-retro...vectors. Improved neuronal tracing could also be achieved by using optogenetically controlled transgenes...neuromuscular diseases it would be desirable to achieve transgene delivery by targeting peripheral structures.... Beier, K.T., Saunders, A., Oldenburg, I.A., Miyamichi, K., Akhtar, N., Luo, L., Whelan, S.P., Sabatini...Kuleshova, E., Ojala, D., Huang, C.C., Gerfen, C.R., Schiller, J., Dudman, J.T., Hantman, A.W., Looger, L.L....

  24. 9 tips for a successful postdoctoral experience

    Type
    Blog Post
    ...be needed to achieve your intended next career stage and create a timeline for achieving these goals. ...the position, you may also want some evidence of teaching experience. How do you get there and more practically...not always available for mentees due to travel, teaching, grant writing, etc. Also, it is unlikely that...management and conflict resolution workshops. Get teaching experience and learn about modern pedagogy techniques...can help boost your ego in between scientific achievements. I've found cooking, gardening, hiking, and ...

  25. The Golden Stopwatch Award: Recognizing Facilitators of Research

    Type
    Blog Post
    ...Below, you will find some easy talking points for broaching this subject with your institution’s tech transfer...resources (summaries, electronic MTA approval, archive of old MTAs, and more) Does your TTO have a question...of Medicine  Baylor College of Medicine Boston Children's Hospital  Brandeis University  Broad Institute...Laboratory  Dana-Farber Cancer Institute  Fred Hutchinson Cancer Research Center Memorial Sloan-Kettering...Studies The Scripps Research Institute St. Jude Children's Research Hospital  Stony Brook University  University...

  26. Fluorescent Protein Travel Awards - Protein Variants, a Serotonin Sensor, and an Artificial Leaf Replica System

    Type
    Blog Post
    ...Travel Awards: Melissa Chiasson, Elizabeth Unger, and Michal Bernach. Melissa Chiasson: Quantifying the abundance...time is time consuming and unscalable.  Melissa Chiasson, a graduate student in Douglas Fowler's lab at...from each bin are then extracted and sequenced. Chiasson is currently using VAMP-seq to study vitamin K...scales and making personalized medicine a reality,” Chiasson explains. Elizabeth Unger: Developing a serotonin...

  27. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    ...conversions are base transversions: they require switching between a two-ring purine and one-ring pyrimidine...experimented with adding different proteins to the CGBE architecture. They conducted a CRISPRi screen to identify...were included in the CGBE. They also developed a machine learning model capable of predicting editing outcomes...gRNA/sgRNA Guide RNA RNA used by Cas9 to locate a matching DNA sequence.   Target strand The DNA strand... CRISPRi screens, target-library analysis, and machine learning. Nature Biotechnology, 39(11), 1414–1425...with sequence context preference predictable by machine learning methods. Nature Communications, 12(1),...

  28. A Deep Dive into BioBuilder

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    Blog Post
    ...Founded as a nonprofit in 2011, BioBuilder is the brainchild of Dr. Natalie Kuldell from MIT’s Department .... Built primarily from her 20 years of college teaching experience, Kuldell sought to create a program... begins with students reading comic strips and watching animations that present a specific research problem...test their own project ideas using synthetic biology.Launching with a kickoff meeting in October, BioBuilderClub...innovators that opened in August 2017.  This flexible teaching space offers STEM programming, workshops, and ...

  29. Protein Tagging with CRISPR/Cas9: A Conversation with Mendenhall and Myers

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    Blog Post
    ... starting with an established method called ChIP-seq. ChIP-seq relies on antibodies to recognize and bind...been doing that for years using this assay called ChIP-seq, but it’s really hard for lots of transcription... antibody to any protein to get really beautiful ChIP-Seq results. The FLAG epitope is quite small—20 ...done comparisons of our new system versus standard ChIP-seq for transcription factors known to have good...

  30. Gendered Innovations: Why Does Sex of the Cell Matter?

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    Blog Post
    ...Many thanks to our Guest Blogger Londa Schiebinger. Londa Schiebinger is a leading international expert on... post was contributed by guest blogger Londa Schiebinger, PhD, Hinds Professor of History of Science, ... stem cells. In this case, they found that sex-matching of donor and recipient yielded the best results...the recipient of numerous prizes and awards. Schiebinger addressed the United Nations on the topic of ...
Showing: 121 - 150 of 650 results