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Lightning-Link® Rapid Biotin

Lightning-Link® Rapid Biotin

Lightning-Link® Rapid Antibody Labeling kits enable direct labeling of antibodies, proteins, peptides or other biomolecules and allow conjugations to be set up in seconds, and used within minutes (less than 20 minutes).

Our Lightning-Link® Rapid technology can be used to label small quantities of antibody with 100% recovery. The researcher simply pipettes the antibody or other biomolecule into a vial of lyophilized mixture containing the label of interest and incubates the reaction for only 15 minutes (for more details please watch the video below). As there are no desalting or dialysis steps that commonly interrupt traditional protein labeling procedures - your conjugate is ready to use

Benefits of Lightning-Link include:

Features Benefits
Quick and easy to use Save time, no special knowledge required
No separation steps 100% recovery - no antibody/protein loss
Can be used in a wide range of applications Flexible
Freeze dried Ships at ambient temperature, long shelf-life
Fully scalable (10ug to 1g or more) Easy transfer from R&D to manufacturing
Stringently QC tested Consistent high quality, excellent batch-to-batch reproducibility
Large number of labels available Experimental flexibility
Reliable: nearly 300 references Successfully used in many fields of research

Do you want to know if your conjugation was a success?

Try our new and unique Biotin Check&Go! Kit.

Biotin checkandgo button


More about Lightning-Link® Biotin

The attachment of biotin to biomolecules is an important laboratory technique. Biotin binds to the tetrameric avidin proteins, including streptavidin and neutravidin, with exceptionally high affinity, and this interaction is exploited in various applications such as western blotting, immunohistochemistry and ELISA. Our biotinylation kits are optimised to create high quality conjugates and minimise assay background.  

Lightning-Link® Biotin has been optimised for two separate applications:

Type A - intended for assays in which a streptavidin-labeled detection reagent will be used,

Type B - optimised for assays in which the biotinylated protein is captured by streptavidin immobilized on a surface (ie plates, nitrocellulose, magnetic beads etc).

Find out more about our range of streptavidin conjugates here

 Please do not hesitate to Contact us to find out more!

Custom labeling services 

Are you looking to increase assay sensitivity, decrease background or increase stability? Do you require bulk quantities to suit your manufacturing or research needs?

At Innova we can help with all your bioconjugation requirements, so if you can't find what you’re looking for from our range of products, or need something a bit different or at a larger scale, our range of custom services may be of interest to you. These include:

Which label should I use?

The choice of label for your antibody primarily depends upon the application:

Immunoassay Label
Western Blotting
  • Enzymes (usually HRP or Alkaline Phosphatase)
  • Enzymes
  • Biotin/Streptavidin
  • Fluorescent dyes
  • Enzymes
  • Biotin/Streptavidin
Flow Cytometry
  • Fluorescent proteins
  • Fluorescent dyes
  • Tandem dyes

Please see the table here for absorption/emission wavelengths of Lightning-Link® fluorescent dyes, proteins and tandems.

What is the difference between Lightning-Link® Biotin and Lightning-Link® Rapid Biotin?

The Lightning-Link® Rapid Biotin kit now allows conjugates to be made significantly faster than the standard Lightning-Link® Biotin kit. Both kits require the same 30 seconds hands-on time, however both the conjugation and quencher incubation times have been significantly reduced, meaning antibodies, proteins and peptides can now be biotinylated in just 20 minutes. Conjugates produced using the Lightning-Link Rapid Biotin kits have also been shown to be much more sensitive than the standard Lightning-Link Biotin kits.

What can I label using Lightning-Link?

Lightning-Link® technology works by targeting free amine groups on your target. It can be used to label antibodies, peptides, proteins and any other molecules with free amine groups.

For advice on labeling molecules other than antibodies please contact our technical support team.

How pure does my antibody need to be?

Your antibody must be purified because other molecules with free amine groups will interfere with the reaction resulting in a poor quality conjugate.

A suitable method of purification should be selected:

  • Affinity purification - this is the preferred method as it will always result in a purified sample containing only the antibody of interest.
  • Protein A or G purification of serum - this will result in a purified sample of all IgG’s contained in the serum. You will have a purified IgG fraction but only a small percentage of this fraction will be the IgG of interest. This IgG fraction will label with our kits, although adjustments in conjugate dilutions will be required.
  • Protein A or G purification of tissue culture supernatant or ascites fluid - this method will generate purified antibodies equivalent to affinity purification.

Other purification methods, such as ion exchange chromatography and ammonium sulphate precipitation, are low quality purification methods and should be avoided. Filtration using a 0.2/0.22 µm filter is a method of sterilization not purification, and is therefore not appropriate.

Is my antibody in a suitable buffer?

For recommended buffer conditions please see the below table:

ll - rapid biotin - components

 1 Please note that individually the concentrations shown should not affect the reaction. However in combination with additional compounds that are not recommended above a certain concentration, the reaction may be affected.

2 If intending to use this kit for immunohistochemistry, it is recommended that there be no gelatin or BSA present.

3 It is important to note that sodium azide is a known inhibitor of HRP and should be avoided.

What can I do if my antibody formulation does not fit the requirements?

If your antibody requires purification or the buffer is not compatible with our kits, we have developed an AbSelect™ purification kit range that allows you to quickly and simply purify your antibody and is fully compatible with the Lightning-Link® kits.

The appropriate kit to use depends on your particular sample (species, buffer, contaminants, volume, etc.). We have designed a handy flow chart on the AbSelect™ webpage to help you select a kit, but feel free to contact us if you require further guidance. Please consult the individual kit protocols to see the antibody amount/volume suitable for each kit.

If your antibody is already purified but its concentration is significantly lower than 1mg/ml, you can concentrate it using our Antibody Concentration and Clean Up Kit. This kit can also be used to remove low molecular weight contaminants such as azide, tris or glycine by carrying out a buffer exchange into the buffer supplied in the kit, which is fully compatible with Lightning-Link®.

If your antibody contains BSA, you can now use our BSA removal kit to purify your antibody in a few simple steps. Please note this kit will also enable you to concentrate your antibody.

NB: All the AbSelect kits will ONLY work with antibodies. They will not purify other molecules. The only exception is the concentration and clean up kit (861-0010), which will work with other molecules greater than 10kD.

Do I need a wash or desalt step?

One of the advantages of the Lightning-Link® technology compared to traditional labeling methods is that conjugate purification is not required. The Lightning-Link® reactions are highly efficient, and the kits have been optimized so that, provided the protocols are followed, there should be only a very low amount of free label left at the end of the conjugation. This remaining free label would have its reactive 'Lightning-Link®' groups blocked by the Quencher provided in the kit, and is washed away during the wash step of your application.

How stable will my new conjugate be?

Upon dissolution of the Lightning-Link® mixture with a solution of the antibody, proprietary chemicals in the mixture become activated. This results in the directional covalent bonding of the antibody to the label in a gentle and controlled process at near-neutral pH. The stability of your conjugate is dependent on your antibody and label of choice.

Most Lightning-Link® conjugates can be stored for up to 18 months, undiluted at 4°C. The exception to this is tandem conjugates which are only stable for up to 3 months.

Biotin Check&Go!

Confirm the success of your antibody biotinylation in 10 minutes and with only very small quantities of your antibody.  [find out more]


Streptavidin Conjugates

Highly stable streptavidin conjugates manufactured using our Lightning-Link® and InnovaCoat® GOLD conjugation technologies.

Streptavidin – Alkaline Phosphatase (AP)   [find out more]
Streptavidin – Horseradish Peroxidase (HRP)   [find out more]
Streptavidin – Fluorescein   [find out more]
Streptavidin – R-PE  [find out more]
200nm Europium - Streptavidin [find out more]
10nm streptavidin gold nanoparticle conjugate (10 OD) [find out more]
20nm streptavidin gold nanoparticle conjugate (10 OD) [find out more]
40nm streptavidin gold nanoparticle conjugate (10 OD) [find out more]
Lightning-Link® Rapid Biotin Labeling Kit (Type A)
Lightning-Link® Rapid Biotin Labeling Kit (Type B)


Ll Rapid biotin

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Type A - 3 x Ab Labelings (up to 20ug) (370-0030)

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Type B - 3 x Ab labelings (up to 20ug) (371-0030)

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Type A - 3 x labelings (up to 200ug) (370-0010)

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Type B - 3 x Ab labelings (up to 200ug) (371-0010)

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Type A - 1 x Ab labeling (up to 2mg) (370-0015)

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Type B - 1 x Ab labeling (up to 2mg) (371-0015)

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Type A - 1 x Ab labeling (up to 200ug) (370-0005)

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Type B - 1 x Ab labeling (up to 200ug) (371-0005)

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Our shipping times are as follows:
48 hours to the US. 24 to 48 hours to Europe.

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