TY - JOUR
T1 - Label-free heavy metal ion sensing via smartphone based app
AU - Biswas, Rajib
AU - Barman, Chinmay
AU - Neog, Ashamoni
AU - Biswas, Sankar
AU - Mazumder, Nirmal
N1 - Funding Information:
RB thanks the Biotechnology Industry Research Assistance Council (BIRAC) , Department of Biotechnology, Government of India, India (Proposal number: BIRAC/KIIT01165/BIG-17/20 ) for the financial support. Further, the support received from UGC-SAP DRS II and DST-FIST grant to Department of Physics, Tezpur University is also gratefully acknowledged.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/5
Y1 - 2023/5
N2 - The proliferation of heavy metal ions in water has been a serious problem that has been escalating day by day. Rapid detection of these ions in an aqueous solution is of immense significance to keep them within permissible limit. To address the growing concentration of heavy metal ions, we report a facile and cost-effective sensing scheme. Based on intensity modulation, the sensing scheme comprises of a smartphone, light source, and analyte. The results reveal that the concentration of heavy metal ions can be detected at ppb level. The sensing scheme renders an average limit of detection (LOD) of ∼0.5 ppb for those assessed ions. Further, spiked tap water has also been assessed to check the applicability of the scheme which eventually yields a ∼95% recovery level. Overall, the sensing scheme with minimal logistics is believed to replace the complex analysis procedure executed through bulky and sophisticated instruments.
AB - The proliferation of heavy metal ions in water has been a serious problem that has been escalating day by day. Rapid detection of these ions in an aqueous solution is of immense significance to keep them within permissible limit. To address the growing concentration of heavy metal ions, we report a facile and cost-effective sensing scheme. Based on intensity modulation, the sensing scheme comprises of a smartphone, light source, and analyte. The results reveal that the concentration of heavy metal ions can be detected at ppb level. The sensing scheme renders an average limit of detection (LOD) of ∼0.5 ppb for those assessed ions. Further, spiked tap water has also been assessed to check the applicability of the scheme which eventually yields a ∼95% recovery level. Overall, the sensing scheme with minimal logistics is believed to replace the complex analysis procedure executed through bulky and sophisticated instruments.
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U2 - 10.1016/j.chemosphere.2023.138231
DO - 10.1016/j.chemosphere.2023.138231
M3 - Article
C2 - 36841452
AN - SCOPUS:85148770243
SN - 0045-6535
VL - 322
JO - Chemosphere
JF - Chemosphere
M1 - 138231
ER -
