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Title: Non-enzymatic glucose detection using magnetic nanoemulsions

We probe the optical properties and intermolecular interactions in magnetically responsive nanoemulsions in the presence of glucose. The equilibrium interdroplet distance between the emulsion droplets in an one-dimensional array increases by several nanometers in the presence of glucose because of intermolecular hydrogen bonding with sodium dodecyl sulphate molecules at the oil-water interface that gives rise to stretched lamellae-like structure. The observed large red shift in the diffracted Bragg peak (∼50–100 nm) and the linear response in the glucose concentration range of 0.25–25 mM offer a simple, fast, and cost effective non-enzymatic approach for glucose detection.
Authors:
;  [1]
  1. SMARTS, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, Tamil Nadu (India)
Publication Date:
OSTI Identifier:
22350760
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BONDING; BRAGG CURVE; DETECTION; DROPLETS; EMULSIONS; EQUILIBRIUM; GLUCOSE; INTERACTIONS; INTERFACES; INTERMOLECULAR FORCES; LAMELLAE; MOLECULES; NANOPARTICLES; OPTICAL PROPERTIES; RED SHIFT; SODIUM; SULFATES