vitamin H
Biotin is involved in the basic metabolism of all organisms.
This enzyme deficiency is found in about 1 in 60,000 newborns and can be treated with daily doses of biotin.
Other important nutrients include vitamins D, C, B6, K and biotin (found in liver, wholegrains, eggs, fish and nuts).
Gelatine and biotin help promote healthy nail growth by acting at the base of the nail where nail growth begins.
Biotin may even stimulate new hair growth if the hair loss can be traced to a biotin deficiency.

SMART Vocabulary: related words and phrases

Vitamins & minerals
ascorbic acid
B vitamin
bioflavonoid
carotene
devitalize
multivitamin
niacin
Omega-3
retinol
riboflavin
vitamin
vitamin A
vitamin B1
vitamin B12
vitamin B complex
vitamin C
vitamin D
vitamin E
vitamin H
vitamin K

Examples of biotin

biotin
To make such particles, solutions containing streptavidin coated polystyrene particles and biotin coated gold nanoparticles (1-5 nm diameter) are mixed.
The different, labeled amino acids in the figure all contribute to the total biotin binding energy.
This is denatured and hybridized with a biotin-labelled oligonucleotide 'capture probe' designed to anneal to a specific internal sequence of the fragment in question.
The reaction was revealed with biotin-avidin peroxidase system.
Sensing discrete streptavidin-biotin interactions with atomic force microscopy.
Once the particles are trapped, streptavidin is introduced in solution at the trap location and bond with the biotin on the particles.
It is to these moieties (biotin-steptavidin) that signal-generating systems attach to.
It is assumed that much smaller biotin-derivatized molecules can easily collect together at this density.
In this system, the 5h-end of an oligonucleotide linked to biotin was used as the primer in the sequencing reaction.
The dark stained parts indicate the biotin-streptavidin complex.
Recently a number of biotin derivatives have become commercially available, and they have various different binding characteristics.
The profiles revealed that the individual spots bound to one or both biotin derivatives.
In this case the limiting factor is the low surface density of the biotin ligands.
In contrast, quantities of high molecular weight, biotin-labelled surface proteins increased with greater centrifugal force, indicating labelling of otherwise inaccessible residues.
Before use, the labeled probes were precipitated with ethanol, then washed to remove unincorporated biotin-labeled nucleotides.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.