The phrase "affinity for hb" is correct and usable in written English, assuming "hb" is defined in context.
You can use it when discussing a preference or attraction towards something, particularly in scientific or technical contexts.
Example: "The researcher noted a strong affinity for hb in the binding studies conducted."
Alternatives: "liking for hb" or "preference for hb".
On the other hand, the single-breath diffusing capacity of the lung for nitric oxide (Dlno) is thought to represent the true membrane diffusing capacity because of its very high affinity for hemoglobin (Hb) and its independence from pulmonary capillary blood volume.
CO is known to have an affinity for haemoglobin (Hb) that is nearly 200 times that of oxygen, leading to an anoxic or hypoxic state.
It is known that Hb oxygen affinity can be modified by amino acid substitutions that decrease or enhance the structure for oxygen binding or by changing the affinity of Hb for allosteric effectors (Perutz 1989).
The affinity of Hb for oxygen can be affected by temperature, pH, the Bohr effect, and NO [ 60, 61], in which S-nitrosohemoglobin increases the affinity of Hb for oxygen [ 62].
An important RBC storage lesion often discussed is depletion of 2,3-diphosphoglycerate, whose level is inversely proportional to the affinity of Hb for oxygen [ 58].
The Hp 1-1 phasotype has been associated with high plasma concentrations [ 4] and an increased antioxidant capacity [ 5], affinity for hemoglobin [ 4], and clearance of Hp-Hb (CD163-mediated) [ 6] regarding Hp phenotype 2-2.
Plasma concentrations of HP, and its binding affinities for free Hb, vary by phenotype, with HP22 reported to have reduced overall Hb affinity (Langlois & Delanghe, 1996), less efficient antioxidative capacity, (Langlois & Delanghe, 1996; Melamed‐ Franket al, 2001) and reduced clearance rates of HP2‐Hb complexes by macrophages (Asleh et al, 2003).
Although levels are usually restored within 24 to 72 hours after transfusion, the transiently increased binding affinity of Hb interferes with the release of O2 for use by tissues [ 74].
Of the remaining tissues measured, the heart expressed the highest CO concentration, possibly due to high myoglobin content, a heme containing protein with an affinity for CO second only to Hb [ 39].
Several previous studies in other high-altitude species showed that amino acid mutations in the alpha- and/or beta-globin genes can alter Hb-O2 affinity, for example, Andean hummingbirds (Projecto-Garcia et al. 2013) and deer mice (Storz et al. 2009, 2010; Natarajan et al. 2013).
