Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection
Authorized Users Only
2017
Authors
Davidović, Slađana Z.Lazić, Vesna M.
Vukoje, Ivana D.
Papan, Jelena
Anhrenkiel, S. Phillip
Dimitrijević, Suzana I.
Nedeljković, Jovan
Article (Published version)
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A simple, fast and non-costly method for selective cysteine (Cys) detection, based on optical changes of silver colloids, is developed. For that purpose, stable colloids consisting of silver nanoparticles (Ag NPs) coated with polysaccharide dextran (Dex), isolated from bacterium species Leuconostoc mesenteroides T3, were prepared. The synthesized samples were thoroughly characterized including absorption and FTIR spectroscopy, as well as transmission electron microscopy and X-ray diffraction analysis. The silver colloids display high sensitivity and selectivity towards Cys detection in aqueous solutions. The Ag NPs coated with Dex provide possibility to detect Cys among a dozen amino acids and its detection limit was found to be 12.0 M. The sensing mechanism - red shift of optical absorption - is discussed in terms of the agglomeration of Ag NPs due to formation of hydrogen bonds between Cys molecules attached to different Ag NPs. (C) 2017 Elsevier B.V. All rights reserved.
Keywords:
Ag nanoparticles / Dextran / Cysteine detection / Sensor / Sensitivity and selectivitySource:
Colloids and Surfaces. B: Biointerfaces, 2017, 160, 184-191Funding / projects:
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-45020)
- Application of biotechnological methods for sustainable exploitation of by-products of agro-industry (RS-31035)
DOI: 10.1016/j.colsurfb.2017.09.031
ISSN: 0927-7765; 1873-4367
PubMed: 28934661
WoS: 000418978500022
Scopus: 2-s2.0-85029533390
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VinčaTY - JOUR AU - Davidović, Slađana Z. AU - Lazić, Vesna M. AU - Vukoje, Ivana D. AU - Papan, Jelena AU - Anhrenkiel, S. Phillip AU - Dimitrijević, Suzana I. AU - Nedeljković, Jovan PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1887 AB - A simple, fast and non-costly method for selective cysteine (Cys) detection, based on optical changes of silver colloids, is developed. For that purpose, stable colloids consisting of silver nanoparticles (Ag NPs) coated with polysaccharide dextran (Dex), isolated from bacterium species Leuconostoc mesenteroides T3, were prepared. The synthesized samples were thoroughly characterized including absorption and FTIR spectroscopy, as well as transmission electron microscopy and X-ray diffraction analysis. The silver colloids display high sensitivity and selectivity towards Cys detection in aqueous solutions. The Ag NPs coated with Dex provide possibility to detect Cys among a dozen amino acids and its detection limit was found to be 12.0 M. The sensing mechanism - red shift of optical absorption - is discussed in terms of the agglomeration of Ag NPs due to formation of hydrogen bonds between Cys molecules attached to different Ag NPs. (C) 2017 Elsevier B.V. All rights reserved. T2 - Colloids and Surfaces. B: Biointerfaces T1 - Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection VL - 160 SP - 184 EP - 191 DO - 10.1016/j.colsurfb.2017.09.031 ER -
@article{ author = "Davidović, Slađana Z. and Lazić, Vesna M. and Vukoje, Ivana D. and Papan, Jelena and Anhrenkiel, S. Phillip and Dimitrijević, Suzana I. and Nedeljković, Jovan", year = "2017", abstract = "A simple, fast and non-costly method for selective cysteine (Cys) detection, based on optical changes of silver colloids, is developed. For that purpose, stable colloids consisting of silver nanoparticles (Ag NPs) coated with polysaccharide dextran (Dex), isolated from bacterium species Leuconostoc mesenteroides T3, were prepared. The synthesized samples were thoroughly characterized including absorption and FTIR spectroscopy, as well as transmission electron microscopy and X-ray diffraction analysis. The silver colloids display high sensitivity and selectivity towards Cys detection in aqueous solutions. The Ag NPs coated with Dex provide possibility to detect Cys among a dozen amino acids and its detection limit was found to be 12.0 M. The sensing mechanism - red shift of optical absorption - is discussed in terms of the agglomeration of Ag NPs due to formation of hydrogen bonds between Cys molecules attached to different Ag NPs. (C) 2017 Elsevier B.V. All rights reserved.", journal = "Colloids and Surfaces. B: Biointerfaces", title = "Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection", volume = "160", pages = "184-191", doi = "10.1016/j.colsurfb.2017.09.031" }
Davidović, S. Z., Lazić, V. M., Vukoje, I. D., Papan, J., Anhrenkiel, S. P., Dimitrijević, S. I.,& Nedeljković, J.. (2017). Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection. in Colloids and Surfaces. B: Biointerfaces, 160, 184-191. https://doi.org/10.1016/j.colsurfb.2017.09.031
Davidović SZ, Lazić VM, Vukoje ID, Papan J, Anhrenkiel SP, Dimitrijević SI, Nedeljković J. Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection. in Colloids and Surfaces. B: Biointerfaces. 2017;160:184-191. doi:10.1016/j.colsurfb.2017.09.031 .
Davidović, Slađana Z., Lazić, Vesna M., Vukoje, Ivana D., Papan, Jelena, Anhrenkiel, S. Phillip, Dimitrijević, Suzana I., Nedeljković, Jovan, "Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection" in Colloids and Surfaces. B: Biointerfaces, 160 (2017):184-191, https://doi.org/10.1016/j.colsurfb.2017.09.031 . .