Biological membranes condition variability

There is a vogue for many scientifically nonqualified aromatherapists to practice clinical aromatherapy, in which they prescribe the internal usage of essential oils. Internal prescribing involves oral, rectal, and vaginal intake however, the use of tampons soaked in various potentially toxic essential oils, such as the various tea tree oils, with variable biological potential could have a possible harmful effect on the delicate internal mucosal membranes. The possibility of misdiagnosis of a urogenital condition by medically unqualified aromatherapists or by the patients themselves could also result in serious consequences. 

Caplan and Essig (1989) provided a simple model of active ion transport, having properties consistent with a multidimensional inflection point when one of the variables was the electrical potential difference across the membrane. A multiple inflection point may not be unique other conditions may exist where flows Ji and J2 simultaneously pass through an inflection point of on variation of Xi at constant X2, and vice versa. It is frequently not possible to vary both forces independently in biological systems. However, if Xi can be controlled experimentally along a proper pathway, while X2 is kept constant, the response of the flows to change in Xi will permit a thermodynamic characterization of the system. 

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