TY  - JOUR
AU  - Đikanović, Daniela
AU  - Kalauzi, Aleksandar
AU  - Jeremic, Milorad G
AU  - Xu, Jianmin
AU  - Micic, Miodrag
AU  - Whyte, Jeffrey D
AU  - Leblanc, Roger M.
AU  - Radotić, Ksenija
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/521
AB  - There is an increasing application of quantum dots (QDs) in plant science, as markers for the cells or their cell walls (Cvvs). In a plant cell the CW is a first target place for external agents. We studied interaction of CdSe QDs with CWs isolated from a conifer - Picea omorika (Pant) Purkyne branch. Binding of CdSe QDs was followed by using fluorescence microscopy, fluorescence and FT-IR spectroscopy. The aim of the study was to see whether the QDs induce structural changes in the CW, as well as to find out which kind of interactions between QDs and CVVs occur and to which particular constituent polymers QDs preferably bind. The isolated CW is an appropriate object for study of the interactions with nanoparticles. The results show that in the ON. CdSe predominantly binds to cellulose, via OH groups and to lignin, via the conjugated C=C/C-C chains. The differences in interaction of wet and dry CWs with QDs/chloroform were also studied. In the reaction of the dry CW sample with QDs/chloroform, hydrophobic interactions are dominant. When water was added after QDs/chloroform, hydrophilic interactions enable a partial reconstruction of the C=C chains. The results have an implication on the use of the QDs in plant bioimaging.
PB  - Elsevier, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - Interaction of the CdSe quantum dots with plant cell walls
EP  - 47
SP  - 41
VL  - 91
DO  - 10.1016/j.colsurfb.2011.10.032
ER  - 

@article{
author = "Đikanović, Daniela and Kalauzi, Aleksandar and Jeremic, Milorad G and Xu, Jianmin and Micic, Miodrag and Whyte, Jeffrey D and Leblanc, Roger M. and Radotić, Ksenija",
year = "2012",
abstract = "There is an increasing application of quantum dots (QDs) in plant science, as markers for the cells or their cell walls (Cvvs). In a plant cell the CW is a first target place for external agents. We studied interaction of CdSe QDs with CWs isolated from a conifer - Picea omorika (Pant) Purkyne branch. Binding of CdSe QDs was followed by using fluorescence microscopy, fluorescence and FT-IR spectroscopy. The aim of the study was to see whether the QDs induce structural changes in the CW, as well as to find out which kind of interactions between QDs and CVVs occur and to which particular constituent polymers QDs preferably bind. The isolated CW is an appropriate object for study of the interactions with nanoparticles. The results show that in the ON. CdSe predominantly binds to cellulose, via OH groups and to lignin, via the conjugated C=C/C-C chains. The differences in interaction of wet and dry CWs with QDs/chloroform were also studied. In the reaction of the dry CW sample with QDs/chloroform, hydrophobic interactions are dominant. When water was added after QDs/chloroform, hydrophilic interactions enable a partial reconstruction of the C=C chains. The results have an implication on the use of the QDs in plant bioimaging.",
publisher = "Elsevier, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "Interaction of the CdSe quantum dots with plant cell walls",
pages = "47-41",
volume = "91",
doi = "10.1016/j.colsurfb.2011.10.032"
}

Đikanović, D., Kalauzi, A., Jeremic, M. G., Xu, J., Micic, M., Whyte, J. D., Leblanc, R. M.,& Radotić, K.. (2012). Interaction of the CdSe quantum dots with plant cell walls. in Colloids and Surfaces B-Biointerfaces
Elsevier, Amsterdam., 91, 41-47.
https://doi.org/10.1016/j.colsurfb.2011.10.032

Đikanović D, Kalauzi A, Jeremic MG, Xu J, Micic M, Whyte JD, Leblanc RM, Radotić K. Interaction of the CdSe quantum dots with plant cell walls. in Colloids and Surfaces B-Biointerfaces. 2012;91:41-47.
doi:10.1016/j.colsurfb.2011.10.032 .

Đikanović, Daniela, Kalauzi, Aleksandar, Jeremic, Milorad G, Xu, Jianmin, Micic, Miodrag, Whyte, Jeffrey D, Leblanc, Roger M., Radotić, Ksenija, "Interaction of the CdSe quantum dots with plant cell walls" in Colloids and Surfaces B-Biointerfaces, 91 (2012):41-47,
https://doi.org/10.1016/j.colsurfb.2011.10.032 . .

TY  - JOUR
AU  - Mutavdžić, Dragosav
AU  - Xu, Jianmin
AU  - Thakur, Garima
AU  - Triulzi, Robert
AU  - Kasas, Sandor
AU  - Jeremic, Milorad G
AU  - Leblanc, Roger M.
AU  - Radotić, Ksenija
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/481
AB  - There has been a lack of quick, simple and reliable methods for determination of nanoparticle size. An investigation of the size of hydrophobic (CdSe) and hydrophilic (CdSe/ZnS) quantum dots was performed by using the maximum position of the corresponding fluorescence spectrum. It has been found that fluorescence spectroscopy is a simple and reliable methodology to estimate the size of both quantum dot types. For a given solution, the homogeneity of the size of quantum dots is correlated to the relationship between the fluorescence maximum position (FMP) and the quantum dot size. This methodology can be extended to the other fluorescent nanoparticles. The employment of evolving factor analysis and multivariate curve resolution-alternating least squares for decomposition of the series of quantum dots fluorescence spectra recorded by a specific measuring procedure reveals the number of quantum dot fractions having different diameters. The size of the quantum dots in a particular group is defined by the FMP of the corresponding component in the decomposed spectrum. These results show that a combination of the fluorescence and appropriate statistical method for decomposition of the emission spectra of nanoparticles may be a quick and trusted method for the screening of the inhomogeneity of their solution.
PB  - Royal Soc Chemistry, Cambridge
T2  - Analyst
T1  - Determination of the size of quantum dots by fluorescence spectroscopy
EP  - 2396
IS  - 11
SP  - 2391
VL  - 136
DO  - 10.1039/c0an00802h
ER  - 

@article{
author = "Mutavdžić, Dragosav and Xu, Jianmin and Thakur, Garima and Triulzi, Robert and Kasas, Sandor and Jeremic, Milorad G and Leblanc, Roger M. and Radotić, Ksenija",
year = "2011",
abstract = "There has been a lack of quick, simple and reliable methods for determination of nanoparticle size. An investigation of the size of hydrophobic (CdSe) and hydrophilic (CdSe/ZnS) quantum dots was performed by using the maximum position of the corresponding fluorescence spectrum. It has been found that fluorescence spectroscopy is a simple and reliable methodology to estimate the size of both quantum dot types. For a given solution, the homogeneity of the size of quantum dots is correlated to the relationship between the fluorescence maximum position (FMP) and the quantum dot size. This methodology can be extended to the other fluorescent nanoparticles. The employment of evolving factor analysis and multivariate curve resolution-alternating least squares for decomposition of the series of quantum dots fluorescence spectra recorded by a specific measuring procedure reveals the number of quantum dot fractions having different diameters. The size of the quantum dots in a particular group is defined by the FMP of the corresponding component in the decomposed spectrum. These results show that a combination of the fluorescence and appropriate statistical method for decomposition of the emission spectra of nanoparticles may be a quick and trusted method for the screening of the inhomogeneity of their solution.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Analyst",
title = "Determination of the size of quantum dots by fluorescence spectroscopy",
pages = "2396-2391",
number = "11",
volume = "136",
doi = "10.1039/c0an00802h"
}

Mutavdžić, D., Xu, J., Thakur, G., Triulzi, R., Kasas, S., Jeremic, M. G., Leblanc, R. M.,& Radotić, K.. (2011). Determination of the size of quantum dots by fluorescence spectroscopy. in Analyst
Royal Soc Chemistry, Cambridge., 136(11), 2391-2396.
https://doi.org/10.1039/c0an00802h

Mutavdžić D, Xu J, Thakur G, Triulzi R, Kasas S, Jeremic MG, Leblanc RM, Radotić K. Determination of the size of quantum dots by fluorescence spectroscopy. in Analyst. 2011;136(11):2391-2396.
doi:10.1039/c0an00802h .

Mutavdžić, Dragosav, Xu, Jianmin, Thakur, Garima, Triulzi, Robert, Kasas, Sandor, Jeremic, Milorad G, Leblanc, Roger M., Radotić, Ksenija, "Determination of the size of quantum dots by fluorescence spectroscopy" in Analyst, 136, no. 11 (2011):2391-2396,
https://doi.org/10.1039/c0an00802h . .