Direct measurement of the in vitro hemoglobin content of erythrocytes using the photo-thermal effect of the heme group

The Analyst
Bong Seop KwakHyo-Il Jung

Abstract

Blood hemoglobin is an important diagnostic parameter in measuring overall health. The hemoglobin molecule and the iron it contains absorb light energy, leading to thermal changes. This paper presents a new method for determining the hemoglobin concentration of erythrocytes by measuring temperature increases of the heme group when cells are heated by a 532 nm wavelength laser. The advantages of our method are that it determines the hemoglobin content of an entire blood sample without chemical treatments and requires only a small amount of blood (less than 10 microL). A micro scaled platinum resistance temperature detector (Pt RTD) was fabricated using a microelectromechanical system (MEMS) technique that directly measures the temperature changes. The platinum RTD's resistance at 0 degrees C is 275.32 Omega. For the specific heating of erythrocytes, we used a 0.03 to 9.6 W cm(-2) power tunable diode pumped solid state (DPSS) continuous wave (CW) laser module with a wavelength of 532 nm. When heating human erythrocytes, leukocytes, plasma, and reference solutions, only the temperature of the erythrocytes significantly increased, indicating that our measurement technique can be used to determine hemoglobin concentration. The hemog...Continue Reading

References

Dec 1, 1970·Proceedings of the National Academy of Sciences of the United States of America·J B WittenbergW E Blumberg
Jan 1, 1983·Advances in Clinical Chemistry·E J van Kampen, W G Zijlstra
Oct 8, 1999·São Paulo Medical Journal = Revista Paulista De Medicina·J RosenblitO C Ferreira
Jan 31, 2002·Journal of Biomedical Optics·Kye Jin JeonGilwon Yoon
Jul 19, 2002·Lasers in Surgery and Medicine·Dmitri O LapotkoVladimir P Zharov
Mar 29, 2005·Optics Letters·Vladimir P ZharovValery V Tuchin
Feb 14, 2006·Lasers in Surgery and Medicine·Dmitri O Lapotko
Sep 6, 2008·Proceedings of the National Academy of Sciences of the United States of America·YongKeun ParkSubra Suresh

❮ Previous
Next ❯

Methods Mentioned

BETA
chip
chemical treatment

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.