Bioimaging

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

This figure shows a microscopic image of a field of cells, some of which are pseudocolored red to indicate that these cells remain pluripotent.

Stem Cell Metrology: WSDOM

Ongoing

Stem cells are critical starting materials for advanced therapies and diagnostic devices. The most commonly used are induced pluripotent stem cells (iPSCs) which can be created with any individual’s skin cells, and then can be coaxed to become cells for any tissue of the body. Therapies and

Fluorescence Microscopy Benchmarking: Overview

Completed

A challenge in using microscopy is how to compare and validate data from different instruments, and how to determine that the microscope performance today is the same as yesterday. NIST is developing a practical, automated approach to implementing performance benchmarking methods that will

News and Updates

A hand in a purple glove turns a metal dial on a plate holding tiny vials of purple liquid.

Bioimaging

The Research

Orthogonal Measurements

Quantitative, Traceable Determination of Cell Viability Using Absorbance Microscopy

Stem Cell Metrology: WSDOM

Fluorescence Microscopy Benchmarking: Overview

News and Updates

NIST Develops New Nondestructive Method for Assessing Bioengineered Artificial Tissues

A Recap of TMAP

NIST Scientists and Engineers Pitch Innovations to Venture Capitalists