Review on wavelength for non-invasive blood hemoglobin level measurement optical device

Abstract

Current invasive phlebotomy based blood-hemoglobin-level (BHL) measurement methods have a relatively high level of risk for daily personal use. Phlebotomy is a traumatic procedure with a relatively high risk of diseases, failure, and cost. Researchers globally have agreed that the spectrophotometric method has great potential for mitigating the risk, but researchers have yet to agree on using which wavelength for non-invasive blood hemoglobin level measurement optical device (NI-BHL-MOD). The objective is to survey the wavelength for NI-BHL-MOD and compared it to self-observation. The research team have obtained research articles in the last 25 years from journals and proceedings indexing services such as Scopus, Medline, and Google Scholar. The light wavelength is categorized based on its wavelength value. The research team have listed the 22 different wavelengths that other researchers have used for blood hemoglobin level measurement. The research team have described several example research that other researchers have done. The research team also have incorporated human skin optical properties considerations that may interfere with NI-BHL-MOD. The research team also have incorporated self-observation on blood hemoglobin level control (Lypocheck Assayed Biochemistry) using Ultraviolet to Visible Spectrophotometer to understand the wavelength response further. Each wavelength has its potential to be used for NI-BHL-MOD, and Research team shall confirm them with in-vitro blood hemoglobin level test in future research.