Data were imported into MatLab v2013a (The Mathworks, Natick, MA) and analyzed with in-house written scripts48. The spectral region was limited to 600–1800 cm−1 and was vector normalized before being analyzed with the N-FINDR spectral unmixing algorithm using a non-negativity constrained fitting of endmembers46. A detailed protocol of the method can be found in ref. 48.
Do you have any questions about this protocol?
Post your question to gather feedback from the community. We will also invite the authors of this article to respond.
Tips for asking effective questions
+ Description
Write a detailed description. Include all information that will help others answer your question including experimental processes, conditions, and relevant images.