Non-enzymatic glucose detection using magnetic nanoemulsions

Journal Article · Mon Sep 22 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4896522· OSTI ID:22350760

Mahendran, V.; Philip, John ^[1]

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1. SMARTS, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, Tamil Nadu (India)

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.

• OSTI ID: 22350760
• Journal Information: Applied Physics Letters, Vol. 105, Issue 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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