TY  - SER
AU  - Gunawardena,Samaratunga Don Niroshan Chinthaka
AU  - Loc Thai Nguyen
AU  - Anal,Anil Kumar
AU  - Salin,Krishna R.
AU  - Sadiq,Muhammad Bilal
ED  - Asian Institute of Technology Fellowship,
TI  - Detection of 3-monochloropropane-1, 2-diol (3-MCPD) using molecularly imprinted Poly(3-aminophenylboronic acid)
T2  - Thesis
PY  - 2018///
CY  - Pathum Thani, Thailand
PB  - Asian Institute of Technology
KW  - Molecular imprinting
KW  - Electrochemical sensors
N1  - A thesis submitted in partial fulfillment of the requirements for the  degree of Master of Engineering in Food Engineering & Bioprocess Technology, School of Environment, Resources and Development; Thesis (M. Sc.) - Asian Institute of Technology, 2018
N2  - Screen  printed  sensor  development  is  a  remarkable  sector  of  present - day electroanalysis.  Molecularly  imprinted  polymers  (MIP)  enable  highly  selective  and  sensitive  sensing  approaches.  Combining  these  two  applications,  a  selective  sensor  was  developed  for  t he  detection  of  3 - monochloropropane - 1,2 - diol  (3 - MCPD)  which  is  a  process  induced  food  contaminant. A screen printed carbon electrode (SPCE) modified with multiwalled carbon  nanotubes  (MWCNT),  gold  nanoparticles  (AuNP)  and  molecularly  imprinted  poly(3 - amino phenylboronic   acid)   was   used   as   the   sensing   platform.  Morphological   and  electrochemical  characterizations  of  the  sensor  were  done  using  FE - SEM/EDX  and  potentiometry  respectively.  In  comparison  to  the  non - imprinted sensor,  the  MIP  sensor  demonstrated a stat istically significant ( p < .05 ) response towards 3 - MCPD. Fabrication and  measurement  conditions  were  optimized  for  selected  parameters.  The  optimized  sensor  showed a linear range at  300 to 1500 oM and the sensitivity was 0.011 mV/oM. The LOD  and LOQ of the sensor were  ascertained to be 192.53 oM and 583.42 oM respectively. The  sensor  exhibited  rather a good  selectivity  against  1,3 - DCP,  1,2 - propanediol,  glycerol , and D - glucose. The pot entiometric response of the sensor was moderately reproducible with  a n RSD of <15%.  High stability of the sensor  was  depicted by the non - significant change  ( p  > .05)  in  response  over  20  days  of  storage  at  room  temperature.  Applicability  of  the  developed sen sor for soy sauce analysis was occluded by the complexities  of the food matrix.  Further  studies  are  necessary  to  accomplish  real  sample  application  and  to  ameliorate the  sensitivity of the developed sensor
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B02869
ER  -