svedberg unit
E681656
The svedberg unit is a non-SI unit of time used in biochemistry to express sedimentation coefficients, especially for macromolecules like proteins and nucleic acids in ultracentrifugation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| svedberg unit canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7685757 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: svedberg unit Context triple: [Theodor Svedberg, hasUnitNamedAfter, svedberg unit]
-
A.
Debye unit
The Debye unit is a non-SI measure of electric dipole moment commonly used in molecular physics and physical chemistry to quantify the polarity of molecules.
-
B.
Fermi (unit)
The fermi is a unit of length equal to one femtometer (10⁻¹⁵ meter), commonly used in nuclear and particle physics to express sizes of atomic nuclei and subatomic particles.
-
C.
sievert
The sievert is the SI-derived unit used to quantify the biological effect of ionizing radiation on human tissue.
-
D.
UCUM
UCUM (Unified Code for Units of Measure) is a standardized coding system designed to provide unambiguous, machine-readable representations of measurement units used in science, engineering, and healthcare.
-
E.
becquerel
The becquerel is the SI-derived unit used to measure radioactivity, defined as one nuclear decay per second.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: svedberg unit Target entity description: The svedberg unit is a non-SI unit of time used in biochemistry to express sedimentation coefficients, especially for macromolecules like proteins and nucleic acids in ultracentrifugation.
-
A.
Debye unit
The Debye unit is a non-SI measure of electric dipole moment commonly used in molecular physics and physical chemistry to quantify the polarity of molecules.
-
B.
Fermi (unit)
The fermi is a unit of length equal to one femtometer (10⁻¹⁵ meter), commonly used in nuclear and particle physics to express sizes of atomic nuclei and subatomic particles.
-
C.
sievert
The sievert is the SI-derived unit used to quantify the biological effect of ionizing radiation on human tissue.
-
D.
UCUM
UCUM (Unified Code for Units of Measure) is a standardized coding system designed to provide unambiguous, machine-readable representations of measurement units used in science, engineering, and healthcare.
-
E.
becquerel
The becquerel is the SI-derived unit used to measure radioactivity, defined as one nuclear decay per second.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
non-SI unit
ⓘ
sedimentation coefficient unit ⓘ unit of time ⓘ |
| approximateValueInSeconds | 1e-13 s ⓘ |
| belongsToCategory |
units of time
ⓘ
units used in biochemistry ⓘ units used in molecular biology ⓘ |
| conversionToSI | 1 S = 10^-13 s ⓘ |
| definition | unit used to express the sedimentation coefficient of a particle in a centrifugal field ⓘ |
| dimension | time ⓘ |
| exactValueInSeconds | 1e-13 s ⓘ |
| exampleUsage |
70S ribosome sedimentation coefficient
ⓘ
80S ribosome sedimentation coefficient ⓘ |
| fieldOfUse |
biochemistry
ⓘ
molecular biology ⓘ ultracentrifugation ⓘ |
| hasAbbreviation | S ⓘ |
| hasPhysicalMeaning | time constant describing sedimentation under a given acceleration ⓘ |
| isAcceptedForUseWithSI | false ⓘ |
| isNonSIUnit | true ⓘ |
| measurementContext |
analytical biochemistry
ⓘ
high-speed centrifugation ⓘ |
| namedAfter | Theodor Svedberg NERFINISHED ⓘ |
| namedAfterNationality | Swedish ⓘ |
| namedAfterOccupation | chemist ⓘ |
| nonAdditivityNote | Svedberg values are not strictly additive for complexes ⓘ |
| relatedToProcess |
centrifugation
ⓘ
ultracentrifugation ⓘ |
| relatedToQuantity | sedimentation coefficient ⓘ |
| relatedUnit | second ⓘ |
| symbol | S ⓘ |
| typicalContext |
analytical ultracentrifugation experiments
ⓘ
ribosome size classification ⓘ |
| usedFor |
characterizing macromolecules
ⓘ
describing sedimentation behavior of macromolecular complexes ⓘ describing sedimentation behavior of nucleic acids ⓘ describing sedimentation behavior of proteins ⓘ describing sedimentation behavior of ribosomes ⓘ expressing sedimentation coefficients ⓘ |
| usedInDescriptionOf |
nucleic acid complexes
ⓘ
protein complexes ⓘ ribosomal subunits ⓘ |
| usedToCharacterize |
density of macromolecules
ⓘ
hydration of macromolecules ⓘ mass of macromolecules ⓘ shape of macromolecules ⓘ size of macromolecules ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: svedberg unit Description of subject: The svedberg unit is a non-SI unit of time used in biochemistry to express sedimentation coefficients, especially for macromolecules like proteins and nucleic acids in ultracentrifugation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.