Nanovoltin

Nanovoltin is a hypothetical unit of electrical potential, representing one billionth of a volt. While the prefix "nano" is commonly used in science to denote a factor of 10⁻⁹, the term "nanovoltin" itself is not a formally recognized or standardized unit within the International System of Units (SI). The standard SI unit for electrical potential is the volt (V).

In practical applications and scientific literature, electrical potentials are typically expressed directly in volts or with standard SI prefixes such as millivolts (mV) for 10⁻³ V, microvolts (µV) for 10⁻⁶ V, or nanovolts (nV) for 10⁻⁹ V. Therefore, a potential of one billionth of a volt would be referred to as one nanovolt (nV). The use of "nanovoltin" might arise in informal contexts or as a conceptual term, but it lacks official standing.

The concept of extremely small voltage differences is relevant in fields such as low-noise electronics, biological signal measurement (e.g., electroencephalography or electrocardiography), and precision instrumentation where sensitivity to minute electrical signals is crucial. In these areas, engineers and scientists work with signals in the nanovolt range, but they use the established unit of nanovolts (nV). The continued development of sensitive measurement techniques may lead to increased discussion of such low potential values, but the established SI nomenclature is expected to remain in use.