Rachel Crossland

Rachel Crossland

Research Associate

Articles by Rachel Crossland

  • Quantitative RT-PCR Using TaqMan Fast Advanced Master Mix

    Wednesday, September 20, 2023
    This product is incredibly convenient to use, incorporating all components required for qRT-PCR, except the cDNA and TaqMan assay. The fast formation allows for results within 30 minutes. The product can be purchased in multiple sizes, saving money if buying in bulk quantities. read more
  • Preparing cDNA Using The TaqMan MicroRNA Reverse Transcription Kit

    Wednesday, September 20, 2023
    The TaqMan MicroRNA Reverse Transcription Kit is a simple to use kit that comes with all components required to make microRNA specific cDNA, apart from the TaqMan RT probe of choice which is purchased separately. The downside of this method is that a separate cDNA preparation must be made for every ... read more
  • Assessing Low Quantity RNA Using The Agilent Bioanalyzer RNA 6000 Pico Kit

    Wednesday, September 20, 2023
    I use this kit to quantify very low levels of RNA isolated from serum extracellular vesicles. I have yet to find an alternative that is as sensitive, so the kit has a big advantage for its sensitivity. However, the disadvantages include its high price, the fact that it is quite complicated to use, ... read more
  • Assessing microRNA by NanoString

    Wednesday, September 20, 2023
    The nCounter® miRNA Expression Panels are a fantastic product, allowing for high-sensitivity multiplexed assessment of up to 800 microRNAs. Comprehensive controls are incorporated into the assay, including negative, positive, ligation and spike ins. The product is well suited to FFPE material and I ... read more
  • Assessment of miR-423-5p Expression Using TaqMan MicroRNA Assay

    Thursday, September 14, 2023
    I used the TaqMan microRNA assay to assess miR-423-5p expression by qRT-PCR in extracellular vesicles isolated from human serum. The product is highly sensitive for detecting low expression levels of microRNA. It should be used in conjunction with appropriate controls. read more
  • Nanoparticle Tracking Analysis for Extracellular Vesicle Characterization

    Wednesday, August 30, 2023
    I use the LM10 NTA for size and concentration characterisation of extracellular vesicles (EVs). This is based on nanoparticle tracking analysis. The LM10 is not the most recent model in the range, but it is a good entry level platform to give basic EV characterisation data such as size and ... read more
  • Collagenase for Isolation of Chondrocytes From Collagen

    Wednesday, August 30, 2023
    I have used Collagenase from Clostridium histolyticum for the isolation of chondrocytes from human cartilage. The dry power form is resuspended in the diluent of choice and can be stored for future use. This collagensase is very effective at digesting collagen for isolation of cells. read more
  • QuantStudio 3 ROI Calibration

    Wednesday, August 30, 2023
    I have used the Region of Interest (ROI) and Background Plates (Fast 96-well) to maintain the QuantStudio 3 qRT-PCR instrument. The plates are quick to use and can be run based on the inbuilt calibration protocol included in the QuantStudio software. This effectively maintains the instrument and ... read more
  • Characterization of Extracellular Vesicles Using CD9 Antibody

    Wednesday, August 30, 2023
    I have used the BD Pharmingen™ PerCP-Cy™5.5 Mouse anti-Human CD9 to assess presence of CD9 on extracellular vesicles (EVs) by flow cytometry. This fulfils the requirements of the international society of extracellular vesicles. The antibody is simple to use and effectively shows CD9 positivity. I ... read more
  • Using CD81 Antibody to Characterize Extracellular Vesicles

    Wednesday, August 30, 2023
    I have used the BD Pharmingen™ APC Mouse Anti-Human CD81antibody to tag extracellular vesicles (EVs) for presence of CD81. This formed part of the required characterisation from the international society of extracellular vesicles, which denotes that EVs should be characterised for presence of ... read more
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