The Science
BHOC Science: Oxygen Delivery, Metabolism & Physiology
Science behind oxygen delivery. Oxygen delivery is not a single number. It is a physiological chain connecting oxygen loading, hemoglobin-mediated transport, circulation, microcirculation, tissue exchange, cellular sensing and metabolism.
Physiology first
From the lungs to the mitochondria.
Hemoglobin concentration and arterial oxygen saturation are important, but they do not by themselves establish whether oxygen delivery is adequate. Blood flow, vascular regulation, microcirculatory distribution, oxygen affinity, diffusion, extraction and metabolic demand all contribute to the final biological outcome.
Scientific foundationsNobel Foundations of Oxygen, Metabolism & PhysiologyA century of Nobel-recognized discoveries that shaped modern understanding of microcirculation, metabolism, nitric oxide, hypoxia and oxygen sensing.
Explore the scientific foundations ↗ Hb Scientific commentary · RBC doseOne RBC Unit Is Not a Fixed Hemoglobin DoseComponent standards, administered Hb mass and the limits of comparing transfusion responses.
Read the commentary and 21 sources → RBC External study · Human kidney, ex vivoHypoxic RBC storage and kidney oxygen deliveryA 2026 kidney-perfusion experiment links stored red cell properties with organ-level oxygen handling.
Read the study findings and limits → O₂ Oxygen deliveryFrom oxygen carrying to functional deliveryExplore how oxygen-carrying capacity, flow and physiological context influence effective oxygen delivery.
Read the evidence summary ↗ NO Vascular physiology · HBOCNitric oxide scavenging, vasoconstriction & tissue oxygenationWhy oxygen-carrying capacity alone is not enough: NO interaction, vascular tone, microcirculatory flow and tissue oxygenation must be evaluated together.
Read the scientific summary ↗ 2018 Protein bioengineering · Nobel foundationDirected evolution & Frances H. ArnoldThe 2018 Nobel-recognized work on directed evolution provides a broader biotechnology framework for starting from biology and engineering function - without implying that BHOC itself is a directed-evolution technology.
Explore the 2018 foundation ↗Precision Oxygen Therapeutics
Blood is a system. Oxygen delivery is a function.
BHOC is evaluated within this functional framework. The relevant question is not only how much oxygen can be carried, but whether an oxygen-delivery approach is appropriate to the physiological need, clinical context and evidence available for a specific technology.
This distinction is why the scientific pages on BHOC Therapeutics remain concise while deeper source-linked material is maintained in BHOC-platform.
What is BHOC? Biological Hemoglobin Oxygen Carrier, HBOC and terminology →
Source-linked science
Go deeper in BHOC-platform.
Peer-reviewed publications, regulatory records, historical sources and application-specific evidence remain available in the structured BHOC-platform repository.