Hydrogel coated fiber Bragg grating based chromium sensor

The present article reports a hydrogel coated Fiber Bragg Grating (FBG) based sensor for chromium metal ion detection. The presence of chromium metal ion in environmental water causes many toxic effects both on humans and animals. The inability of sensing traces of chromium ions is still remains a challenging problem for decades, as the Chromium exists in the environment in different oxidation states. This Paper discusses a chemo-mechanical-optical sensing approach for sensing harmful Chromium ions in environmental water. Fiber Bragg Grating is functionalized with a stimulus responsive hydrogel which swells or deswells depending on ambient chromium ion concentrations. This volume change of the hydrogels causes a bragg shift of the FBG peak. Different peak shifting’s, corresponding to different concentrations of the Cr ion concentrations, can be considered as a measure for quantifying traces of chromium ions. Hydrogel network cross-linked with (3-Acrylamidopropyl)-trimethylammonium chloride (ATAC) was synthesized and coated on FBG by dip coating method. Chromium ion concentrations up to ppm (parts per million) can be sensed by this technique.

[1]  S. M. Idrus,et al.  Sensitivity improvement of a fibre Bragg grating pH sensor with elastomeric coating , 2011 .

[2]  T. Mahmud,et al.  ISOTHERMAL AND THERMODYNAMICAL MODELING OF CHROMIUM (III) ADSORPTION BY COMPOSITES OF POLYANILINE WITH RICE HUSK AND SAW DUST , 2012 .

[3]  Michael A. Davis,et al.  Fiber grating sensors , 1997 .

[4]  Jens Lienig,et al.  Review on Hydrogel-based pH Sensors and Microsensors , 2008, Sensors.

[5]  Ian Bennion,et al.  In-fiber grating optic sensors , 2002 .

[6]  Robin H. Liu,et al.  Functional hydrogel structures for autonomous flow control inside microfluidic channels , 2000, Nature.

[7]  Thomas Thundat,et al.  Detection of CrO4(2-) using a hydrogel swelling microcantilever sensor. , 2003, Analytical chemistry.

[8]  Kyung-Il Joo,et al.  Optical detection of volatile organic compounds using selective tensile effects of a polymer-coated fiber Bragg grating. , 2010, Optics express.

[9]  L. Brannon-Peppas,et al.  Solute and penetrant diffusion in swellable polymers. IX: The mechanisms of drug release from pH-sensitive swelling-controlled systems , 1989 .

[10]  Ian Bennion,et al.  Highly sensitive transverse load sensing with reversible sampled fiber Bragg gratings , 2003 .

[11]  Yun-Jiang Rao,et al.  Recent progress in applications of in-fibre Bragg grating sensors , 1999 .

[12]  Mohsen Shahinpoor,et al.  Micro-Electro-Mechanics of Ionic Polymeric Gels As Electrically Controllable Artificial Muscles , 1995 .

[13]  Kangsheng Chen,et al.  Demonstration of etched cladding fiber Bragg grating-based sensors with hydrogel coating , 2003 .

[14]  S. Adurty,et al.  Novel catalytic fluorescence method for speciative determination of chromium in environmental samples , 2015, Journal of Analytical Science and Technology.

[15]  Kangsheng Chen,et al.  Fiber optic Bragg grating sensor based on hydrogels for measuring salinity , 2002 .

[16]  Y. Hsieh,et al.  pH-responsive swelling behavior of poly(vinyl alcohol)/poly(acrylic acid) bi-component fibrous hydrogel membranes , 2005 .

[17]  Peng Wang,et al.  Fiber optic volatile organic compounds sensor based on polymer coated FBG refractometer , 2011, Other Conferences.

[18]  David Brock,et al.  A Dynamic Model of a Linear Actuator Based on Polymer Hydrogel , 1994 .