We narrowed to 872 results for: ica;
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TypeBlog PostPublishedAug. 28, 2018, 12:04 p.m....conventional microscopes and give a similar optical quality (magnification of 140X and 2 micron resolution). I... science communication and outreach - if you'd like to learn more about Science communication check out...listening to talks all day. But nope, not at the American Society for Microbiology 2018 Microbe meeting....biomolecule-based dyes. This technology is widely applicable as bacterial expression of dyes allows dye visualization...Bacterial Genome Engineering Learn about Science Communication using Twitter Resources on Addgene.org Check...
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Stem Cell Models for Disease & Open Science: Interview with Darrell Kotton
TypeBlog PostPublishedJuly 7, 2017, 1:32 p.m....Balancing research with medical practice as an MD/PhD. Darrel does 20% clinical work 80% research and was...for Regenerative Medicine at Boston University Medical School. Darrell’s research focuses on the lungs...Center for Regenerative Medicine, and within the biomedical research community. Along these lines, Darrell...Pathology and Laboratory Medicine. He attends in the Medical Intensive Care Unit, the Pulmonary Consultation...the Pulmonary outpatient clinic, all at Boston Medical Center. In addition he conducts basic stem cell...Regenerative Medicine of Boston University and Boston Medical Center. Special thanks to our sound engineer/producer... -
Save Time and Money by Making Your Own Competent Cells
TypeBlog PostPublishedJan. 28, 2014, 3:10 p.m....provided here for reference: OpenWetWare Preparing chemically competent cells (protocol) Preparing electrocompetent...protocol) Untergasser Lab Preparation of chemically competent cells (protocol) Preparation of electrocompetent...until we are ready to perform transformations. A typical 200mL bacterial culture produces 20mL of competent...transformation protocols below: OpenWetWare Transforming chemically competent cells (protocol) Electroporation (...protocol) Untergasser Lab Transformation of chemically competent cells (protocol) Transformation of...being performed at Addgene, this adds up to a significant time savings. You can also save yourself time...plasmid is introduced to bacteria, the bacteria is typically grown in liquid culture without antibiotics to... -
Multicolor Animals: Using Fluorescent Proteins to Understand Single Cell Behavior
TypeBlog PostPublishedMarch 5, 2019, 1:08 p.m....variety of species, cell types, and research applications. Labeling neurons with Brainbow The Lichtman...mOrange2, EGFP, and mKate2 (red) to solve the problematically low fluorescent intensity of previous versions... Brainbow 3.1 and 3.2 (described in the same publication) are unique because by default, they are not ...level of these XFP is not strong enough for all applications. To resolve this, similar systems have been ...developed a version of Tetbow that incorporates chemical tags instead of XFP to optimize it for tissue ...architecture of a fluorescent neuron is visible. Chemical tags are more resistant to tissue clearing methods...neuronal circuits with fluorescent proteins and chemical tags." eLife 7 (2018): e40350. PubMed PMID: 30454553... -
Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons
TypeBlog PostPublishedApril 24, 2015, 2:39 p.m....insights into the complicated physical organization of the brain and other biological systems. Interested...deletions are defined using 2 loxP variants (only identical loxP sites can mediate recombination.) The deletions...of farnesylated derivatives enables labeling of delicate axonal and dendritic processes not previously ...Between Brainbow Systems Brainbow variants and applications beyond the mouse brain In addition to improving...temporal control without the need for germline modification, and enables Brainbow to be used in a variety...homeostasis results from neutral competition between symmetrically dividing Lgr5 stem cells. Snippert HJ, van der... -
Fluorescent Proteins 101: Fluorescent Biosensors
TypeBlog PostPublishedMay 18, 2017, 2:30 p.m....content of this article. Biosensors (‘biological sensors’) are biological tools that monitor a process or detect...a reporter signal. Reporter signals may be electrochemical or light-based, with luminescent and fluorescent..., and you should always check the associated publication for the specifics of your chosen plasmid. Types...Experiments Experiment Detection Method Notes Quantification of a process Plate-based assays (plate reader...components of individual cells Separation/identification of fluorescently-labeled components Fluorescence-activated... Jessica Welch... -
Tips for Improving Your Next Manuscript
TypeBlog PostPublishedNov. 22, 2016, 3:30 p.m....attended both online and on site courses with the American Society for Microbiology (ASM) Scientific Writing...of any scientist’s career. We use writing to communicate our findings and share them with the world. If...simply writing down your data doesn’t guarantee a publication. There is an art to composing manuscripts and...field of microbiology with multiple high-profile publications. My classmates consisted of graduate students...sessions and reinforced our newfound knowledge with practical understanding of how to apply it. The personal...well as being critiqued added an extra level of application not present in the online class. Four ways ...paper will be generated. After you complete a publication quality figure, produce the figure, its legend... -
Sleeping Beauty Awakens for Genome Engineering
TypeBlog PostPublishedJune 30, 2015, 2 p.m.... some of the drawbacks. Specifically, viruses are able to infect and replicate in host cells, but they...gene therapy using Sleeping Beauty to genetically modify clinical-grade T cells to target CD19. Immunol... though not all, of these defenses. For some applications of genome engineering - such as certain forms...to integrate. Additionally, the TA sequence is duplicated near the gene of interest insertion site. The...Anderson Cancer Center presented results from a clinical trial using the Sleeping Beauty transposase as... -
What Do I Do Now? Academic v. Non-Academic Career Decisions
TypeBlog PostPublishedMarch 9, 2017, 3:40 p.m....the less acknowledged perks of scientific and technical training is that these educational paths prepare...Foundation study showed that 57% of PhDs in US Biomedical workforce will NOT go into “traditional” academic...tech transfer, management consulting, science communication, policy and the diverse options in nonprofit...science is much like industry but the “product” is publications—the pressure to produce is the same You get ...and teach students Collaborations may be less “complicated” - for example, easy to initiate a collaboration...is different about non-academia? Scientific publications are a nice to have, not a need to have Must ...every 3-6 years—a short and exciting ride Complicated matrix structures are common Small integrated... -
Antibodies 101: Multiplex Immunofluorescence
TypeBlog PostPublishedMay 23, 2023, 1:15 p.m....protein is (localization) and how much there is (quantification). But what if you’ve got several interesting...inactivate the fluorophores in the sample, either by chemical treatment or photobleaching or by stripping out...primary antibodies that have been validated in IF applications (find IHC validated or ICC validated antibodies...yourself stuck with red-green images generated automatically from the microscope software, you can always...it, the secondary antibody may be binding non-specifically – try optimizing your blocking and washing conditions...informative image-based figures for scientific publications. PLOS Biology, 19(3), e3001161. https://doi....Germain, R. N. (2020). IBEX: A versatile multiplex optical imaging approach for deep phenotyping and spatial... -
DAP arrays for multiplex gene editing
TypeBlog PostPublishedJuly 7, 2022, 1:15 p.m.... fused base editors (nCas9-BE), as Cas9 is mechanistically more favored for efficient base editing. They...been used for multiplex Cas9-nuclease editing. Typically, a single array encoding the tandemly assembled...released by endogenous tRNA processing machineries, specifically, RNaseZ and RNaseP. Although the Gao Lab demonstrated...packaged into viral vectors for potential in vivo applications or multiplex CRISPR screening. Using tRNAs...multiplex genome engineering of crops or allow for sophisticated CRISPR screenings that would perturb the unprecedented...and efficient in plasmid and viral vectors. In applications when repetitive tRNA sequences must be avoided...construct DAP array for multiplex gene editing applications, we provide detailed manual and online design... -
Celebrate National Book Month with Addgene
TypeBlog PostPublishedOct. 3, 2019, 12:47 p.m....Musicophilia includes case studies of relevant neurological atypicalities, including a patient with amusia - the...capture the attention of even the most skeptical reader of historical fiction (I can personally attest to...sometimes we don't." - Jennifer Tsang, Science Communications and Marketing Coordinator Non-science favorites...Strange & Mr. Norrell by Susanna Clarke "A quasi-historical/fantasy fiction. Two dueling magicians in the...times." - Aliyah Weinstein, Marketing and Communications Manager Addgene's book club Indeed, reading... -
Photosensitizer Induced Cell Ablation with FAP-TAP MG-2I-dL5**
TypeBlog PostPublishedSept. 19, 2017, 1:20 p.m....generation when bound by the dL5** FAP. The iodine-modifications also shift MG-2I’s excitation wavelength to ...FAP-TAP system works. Find the Plasmids from the Publication Here Light-induced cell ablation with MG-2I-dL5...the main advantages of MG-2I-dL5** over other genetically encoded photosensitizers is that it works with... ROS because NIR light doesn’t excite natural biological chromophores found in cells. He et al also show...compared MG-2I-dL5** head-to-head with KillerRed, a genetically encoded red fluorescent photosensitizer protein...Watkins, S. C., . . . Bruchez, M. P. (2016). A genetically targetable near-infrared photosensitizer. Nature...Chepurnykh, T. V., . . . Lukyanov, K. A. (2005). A genetically encoded photosensitizer. Nature Biotechnology... -
Pushing the Limits of DNA Assembly
TypeBlog PostPublishedSept. 6, 2017, 1:01 p.m.... to a method of physically joining multiple fragments of DNA to create a synthetically designed DNA sequence...-guide RNAs – but it also allows you to skip purification steps and end-repair steps with well-designed...fragment sequences and the polymerase used in the amplification. This tool allows instant updates as fragments...transformation or as a PCR template. Some of the applications of the NEBuilder HiFi DNA Assembly Mix include...one single-stranded oligo, instead of the more typical two oligos, is more cost effective and eliminates...the limitations associated with otherwise more complicated assembly approaches, and opens the door for new... -
Hot Plasmids - January 2023
TypeBlog PostPublishedJan. 31, 2023, 2:15 p.m.... necessary for many of these applications have lagged. Fixation, chemical staining, and light exposure...antibodies may just not perform as well in one application as another, so it is always best to have options...for mEGFP-HRas (from Plasmid 18662). See the Applications section on the Anti-GFP [N86/8R] page for more...30667360; PMCID: PMC6377228. Hyperfolder YFP- a chemically stable tool for microscopy by: Susanna Stroik...well-suited for the demands of advanced microscopy applications such as super resolution, electron, and expansion...Find YFP plasmids here! Campbell, B.C., et al. Chemically stable fluorescent proteins for advanced microscopy... -
Sweating the Small Stuff: Details in the Lab
TypeBlog PostPublishedFeb. 8, 2022, 2:15 p.m....you're trapped in a pattern of small errors that significantly impacts your experiments. What do you do when...variables - your approach, your workflow, or your physical setup - to prevent the mistake, just like you ...differently. Tools to Try Checklists Found in surgical suites, air fields, and military bases, checklists...light-sensitive reagents” or “re-sterilize now.” Have a physical copy of the protocol when you work and make a ...time to do them carefully and thoroughly. Have a physical copy on hand as you run your experiments. Try ...your plate maps onto your plates, alongside your physical copy. If you’ve got messy handwriting, reach for...accuracy. Bench setup Small adjustments in the physical organization of your workspace and your workflow... -
Antibodies 101: Buffers, Storage, and Conjugates
TypeBlog PostPublishedFeb. 1, 2022, 2:15 p.m....made of chemicals, which have an unfortunate tendency to react with other chemicals and biological structures...antibody out on the bench overnight. Do not panic! Typically, antibodies are okay if they’re left out overnight...then I would suggest either testing the antibody efficacy through a standard curve, another quick experiment... fluorophores, which work not by reacting to a chemical, but by emitting a specific wavelength of light...compensation. Working with antibodies can get a bit complicated, but hopefully this helps you successfully select... -
Luminescent Imaging with Nano-lanterns
TypeBlog PostPublishedMay 25, 2017, 2:30 p.m....around these issues, but this solution wasn’t practical due to the low intensity of luminescent proteins...resulting in a fluorescent signal. Since their first publication in 2012, the Nagai laboratory has assembled a...multicolored nano-lanterns for use in various applications, including optogenetics, biosensors, and fusion...sensitivity and faster imaging compared to previous publications. They also developed calcium, cAMP, and ATP ...furimazine. In addition to the previously described applications, the enhanced signal of eNL allows their use...characterizing Nano-lanterns and eNL for many different applications. For long-term imaging, especially where photobleaching...not alter cellular physiology in your system. Optical sectioning cannot be conducted with luminescence... -
Choosing the B(right)est Fluorescent Protein: Photostability
TypeBlog PostPublishedJune 8, 2017, 2:30 p.m.... The previous post in this series described a practical approach to selecting a bright fluorescent protein... localized fusion proteins and do not require dedicated plasmids or constructs. It should be noted that...reached at high power may not translate to real applications in which far less power is used. For example...insight into the photostability in the intended application (Goedhart et al, 2012). The third issue relates...Selecting a photostable protein The issues with quantification of photobleaching rates can be summarized as...Amsterdam). He develops, characterizes and uses genetically encoded fluorescent probes. You can follow him...(University of Amsterdam) where she develops genetically encoded FRET based biosensors. Additional... -
CRISPR 101: Cas9 vs. The Other Cas(s)
TypeBlog PostPublishedDec. 8, 2022, 2:15 p.m.... out large regions of DNA and has anti-viral application potential as a result. Fast facts – PAM requirement...once it is engaged by its target, it will non-specifically cut ssDNA. This feature is shared by other Cas...enzymes outlined below as well. Cas12a also has significant therapeutic promise due to the fact that it is...target sequence Similar to Cas12, it is also significantly smaller in size than traditional Cas9. Another... potential as a viral therapeutic that could specifically degrade target viral RNA. For more information... has been proposed to be useful for the same applications (RNA knockdown, RNA editing, etc.). The main... not display collateral RNA cleavage and is significantly less toxic to mammalian cells than Cas13 (likely...