Projects/Programs

Displaying 1 - 12 of 12

Biofabrication of Tissue Engineered Constructs

Ongoing

OCT imaging was assessed using a model scaffold-cell system consisting of a polysaccharide-based hydrogel seeded with human Jurkat cells. Four test systems were used: hydrogel seeded with live cells, hydrogel seeded with heat-shocked or fixed dead cells and hydrogel without any cells. Time series

Bioimaging

Completed

Imaging and image analysis are used ubiquitously in biological and biomedical research. One of the great advantages of imaging is its intuitive information content; much can be learned from just a glance at the data. On the other hand, these data generally contain a very large amount of untapped

Bioprocessing Laboratory

Ongoing

Current Capabilities Computer controlled liquid nitrogen biostorage system Two culture areas including 4 monitored CO2 incubators 2 Six-foot BSLII biosafety cabinets Measurements- cell count and concentration, STR typing, flow cytometry, cell volume size distribution, conventional transmission and

Cell Counting for Cell Therapies

Ongoing

Recent Publications and Resources for Cell Counting and Related Measurements Tools NOW AVAILABLE : COMET (Counting Method Evaluation Tool) , A Shiny Application that executes the statistical analysis and reporting outlined in ISO 20391-2:2019 https://cell-counting.shinyapps.io/COMET/ Standards ISO

Cell Viability for Advanced Therapies

Ongoing

In the Biosystems and Biomaterials Division at NIST, we have established several technical programs to support the development and implementation of cell viability assays in advanced therapies. These programs address key needs in cell viability assay development including selection and development

Gene Delivery Systems

Ongoing

Viral Vectors Viral vectors are a critical tool for delivering DNA or RNA into patient’s cells. Common viral vectors for gene therapy include adenovirus, lentivirus, and adeno associated virus. Administration of viral vectors can occur in vivo or ex vivo , such as for adeno associated virus or

Integrated Lentiviral Vector Copy Number Measurements: Invitation to Participate in an Interlaboratory Testing Program Evaluating Genomic DNA Test Materials

Ongoing

NIST has produced genomic DNA test materials from transduced Jurkat cell lines with integrated lentiviral vector copy number (VCN) for evaluation as a candidate reference material. Transducing Jurkat (Clone E6-1) cell lines with a lentivirus expressing a green fluorescent protein were produced by

Orthogonal Measurements

Ongoing

Definitions: Orthogonal measurements: Measurements that use different physical principles to measure the same property of the same sample with the goal of minimizing method-specific biases and interferences. Complementary measurements: Measurements that corroborate each other to support the same

Quantitative, Traceable Determination of Cell Viability Using Absorbance Microscopy

Ongoing

The current gold standard for cell viability measurements is the trypan blue assay. Trypan blue dye enters dead cells that have a ruptured membrane. As a result, the dead cells are stained blue. Live cells with an intact membrane, on the other hand, do not absorb the dye molecules and remain

Research Grade Testing Material (RGTM 10212), Synthetic Fecal Metabolite Calibrant (Credit: NIST)

Synthetic Fecal Metabolite Calibrant Solution (RGTM 10212)

Ongoing

Metabolomics is an exciting and dynamic field in life sciences that harnesses cutting-edge technologies to identify and characterize small molecules, or metabolites, within cells, tissues, or organisms, collectively known as the metabolome. The wealth of evidence in the literature underscores the

Tissue Engineering

Ongoing

Tissue Engineering Measurands: Tissue engineering measurands are confusing to discuss and a charting method to improve communication is demonstrated. Measurement Assurance Strategies for Regenerative Medicine: Reliable methods for assessing product consistency and quality. Regenerative Medicine

Tissue Engineering Measurands

Ongoing

Making a Measurand Chart: A measurand chart can be created for any measurement by writing down all the measurands that occur during the measurement. The panels should not be procedural steps, such as “wash the sample with buffer” or “centrifuge the microfuge tubes”. Consider if the measurement has a

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