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Hydrogel Microstructures: Characterization of Mass and Swelling of Hydrogel Microstructures using MEMS Resonant Mass Sensor Arrays (Small 16/2012)
Author(s) -
Millet Larry J.,
Corbin Elise A.,
Free Robert,
Park Kidong,
Kong Hyunjoon,
King William P.,
Bashir Rashid
Publication year - 2012
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201290089
Subject(s) - microstructure , materials science , swelling , microelectromechanical systems , characterization (materials science) , photolithography , ethylene glycol , self healing hydrogels , volume (thermodynamics) , mass concentration (chemistry) , composite material , nanotechnology , analytical chemistry (journal) , chemical engineering , polymer chemistry , chromatography , chemistry , thermodynamics , physics , engineering
Through photolithography, poly(ethylene glycol)diacrylate microstructures can be attached to microelectromechanical system resonant mass sensor arrays to enable the characterization of hydrogel mass and swelling. Mass values obtained coincide with the values obtained through imaging‐based measures of microstructure volume for independent mass determination. The data shown on page 2555 indicate a size‐dependent increase in gel mass with increasing fluid density; volume comparisons of a range of bulk hydrogel concentrations (5% to 100% v/v) show a non‐linear swelling trend.