Resources

A curated list of resources that may be useful to the general scientific
community — especially students, I hope!

How to cite

If you use any of the tools or resources here in your research, please cite:

Marquez, R.T.C. (2026). renmarquez.science. Retrieved from https://renmarquez.science
Drawings
Gold foil press

Technical drawings for tools that I've designed for the lab

Title Description
Gold Foil Press Design for a small stainless steel press for creating gold foil mounts.
NanoSIMS Rounds Drawings of two varieties of 10-mm rounds for the NanoSIMS. Design A is for a wire-mounted gold foil and includes part numbers for normal and dovetail micron-sized drill bits. Design B is a simple ring for epoxy mounting.
NanoSIMS Rounds Case Prototype design for case to hold 10-mm NanoSIMS rounds. Instructions for assembly and usage coming soon!
Software

Free. Science is by the people and it should be for the people.

Title Description
COSMO Double spike optimization for sample-limited analyses of isotopically anomalous materials. MATLAB-based (I get the irony given the adage above). Python-equivalent coming soon!
NebCondense Jupyter notebook that guides students through L. Grossman's first calculation of early nebular condensation. This was developed as part of a Ge 141 (Isotope Cosmochemistry) problem set taught by F.L.H. Tissot at Caltech.
Scientific Illustration

Resources for making clear, publication-quality scientific figures.

Title Description
Half-Width Illustrator Artboard Template artboard for half-width figures in letter format (following PNAS-style margins). Draw on Artboard 1, which has 1/8"-margins relative to Artboard 2.
Full-width Illustrator Artboard Template artboard for full-width figures in letter format (following PNAS-style margins). Draw on Artboard 1, which has 1/8"-margins relative to Artboard 2.
Bentons Sans Download the Sans Serif font used in all of my figures (and this site!)