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Description

(1) The material Material file describes the composition of the material formulation and is not included in the ISA-TAB specification. The material Material file is an important file that is designed to allow for nanomaterial comparison across nanotechnology resources.

(2) An investigation typically involves the preparation of multiple materials that are tested.These materials could be of the same chemical composition (same type and amount of chemical components in the sample) or different chemical compositions. Materials having the same chemical composition should be described using one material Material file. Materials of different chemical composition should be described separately using multiple materials Material files.

File Format

The Material file looks similar to the Study and Assay files. It is a horizontally oriented spreadsheet containing tab delimited row values representing multiple values. The Material file contains information on the material, the relationship between material constituents, and a description of the material file. An example subset of this format is provided in TABLE 1.

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Material source name--- The unique identification name of the source from which the material sample is derived. Its value is used as the value for source name in ISA-TAB-Nano study files, thereby linking the ISA-TAB-Nano material Material file and the study Study file

Material name---The unique identification name for the sample and its different components. This name is used to identify or reference the different components across the ISA-TAB-Nano files.

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Material data file type term source REF--- The name which identifies the source from where the term for material Material data file type is selected.

Material data file version--- The version number of the material file.

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