Articles by tag "NTA"

1. Why Did Nickel Agarose Beads Lose Their Color?
   posted this at 16.11.2025

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   The blue color of nickel agarose beads arises from coordination between Ni²⁺ and immobilized ligands (e.g., NTA/IDA/TED-type chelators). When loading His-tagged proteins, the local coordination environment changes and the color often becomes temporarily lighter; if strong chelators such as ...