Bio-nanocapsules for signal enhancement of alkaline phosphatase-linked immunosorbent assays

Biosci Biotechnol Biochem. 2013;77(4):843-6. doi: 10.1271/bbb.120760. Epub 2013 Apr 7.

Abstract

The bio-nanocapsules displaying about 240 molecules of immunoglobulin G Fc-binding Z domains (ZZ-BNCs) enhanced the signals of enzyme-linked immunosorbent assay by tethering the Fc regions of secondary antibodies (Abs), which were eliminated using high-molecular mass enzymes (e.g., alkaline phosphatase). By way of optimizing the distance between enzymes and Abs, ZZ-BNCs improved sensitivity independently of enzymes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaline Phosphatase / chemistry
  • Alkaline Phosphatase / metabolism*
  • Enzyme-Linked Immunosorbent Assay / methods*
  • Horseradish Peroxidase / metabolism
  • Immunoglobulin Fc Fragments / chemistry
  • Immunoglobulin Fc Fragments / immunology
  • Immunoglobulin G / chemistry
  • Immunoglobulin G / immunology
  • Liposomes / chemistry
  • Molecular Weight
  • Nanocapsules*
  • Protein Structure, Tertiary

Substances

  • Immunoglobulin Fc Fragments
  • Immunoglobulin G
  • Liposomes
  • Nanocapsules
  • Horseradish Peroxidase
  • Alkaline Phosphatase