https://www.nist.gov/publications/vibrational-signatures-polyethylene-glycol-and-brighteners-copper
With the use of fourier transform infrared spectroscopy (FTIR) and sum frequency generation spectroscopy (SFG), the surface coverage and confirmation of additiv
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https://www.sciencenews.org/article/mood-brighteners-light-therapy-gets-nod-depression-buster
Brief periods of daily exposure to bright light are an effective treatment option for depression.
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https://www.xrite.com/ko-kr/page/optical-brightening-agents-a-primer
optical brightening agents a primer
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