TY  - CONF
AU  - Milenković, Ivana
AU  - Zhou, Yiqun
AU  - Spasić, Slađana
AU  - Leblanc, Roger M.
AU  - Borisev, Milan
AU  - Radotić, Ksenija
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1845
AB  - INTRODUCTION:
Carbon dots (CDs) are considered a green alternative to metal nanoparticles because they can be used where metal nanoparticles cannot be applied. Orange carbon dots (CDs), synthesized from citric acid and o-phenylenediamine as precursors, are organic spherical nanoparticles with a lot of applications in various biomedical purposes such as drug delivery, bioimaging, and sensing. Ease of preparation, high photoluminescence, solubility in water, and biocompatibility are their main advantages.
OBJECTIVES:
The main aim of this research was to investigate the effect of oCDs on total phenolic activity (TPC) in maize as an agricultural species. TPC reflects the contribution of phenolics as a group of secondary metabolites participating in the regulation of plant growth and in the defense responses. Also, it is one of the main indicators of oxidative stress which can cause a metabolic disorder in plants.
METHOD / DESIGN:
Three different concentrations (1, 5, and 10 mg L-1) of oCDs nanoparticles were used for the treatment of maize plants via KNOP/2 hydroponic solution during 2 week-growth under 16 h/8 h photoperiod. TPC was analyzed from phenolic extracts obtained from the roots and leaves of plants after foliar and solution treatments. Folin-Ciocalteu’s spectrophotometric procedure was used for the determination of TPC in the samples.
RESULTS:
The results showed that foliar applications with all concentrations of o-CDs induced decreases of TPC in maize leaves but did not affect these parameters in the roots. In solution treatment, the concentration of 1 mg/L of o-CDs increased TPC in the leaves, but decreased in roots.
treatment
CONCLUSIONS:
The higher efficiency achieved with the lowest o-CD concentration (1 mg/L) in foliar treatment makes this way of application advantageous compared with the solution counterpart.
PB  - University of Novi Sad, Faculty of Sciences, Serbia
C3  - International BioScience Conference and the 8th International PSU – UNS Bioscience Conference
T1  - Orange carbon dots change the total phenolic content in maize
EP  - 130
SP  - 129
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1845
ER  - 

@conference{
author = "Milenković, Ivana and Zhou, Yiqun and Spasić, Slađana and Leblanc, Roger M. and Borisev, Milan and Radotić, Ksenija",
year = "2021",
abstract = "INTRODUCTION:
Carbon dots (CDs) are considered a green alternative to metal nanoparticles because they can be used where metal nanoparticles cannot be applied. Orange carbon dots (CDs), synthesized from citric acid and o-phenylenediamine as precursors, are organic spherical nanoparticles with a lot of applications in various biomedical purposes such as drug delivery, bioimaging, and sensing. Ease of preparation, high photoluminescence, solubility in water, and biocompatibility are their main advantages.
OBJECTIVES:
The main aim of this research was to investigate the effect of oCDs on total phenolic activity (TPC) in maize as an agricultural species. TPC reflects the contribution of phenolics as a group of secondary metabolites participating in the regulation of plant growth and in the defense responses. Also, it is one of the main indicators of oxidative stress which can cause a metabolic disorder in plants.
METHOD / DESIGN:
Three different concentrations (1, 5, and 10 mg L-1) of oCDs nanoparticles were used for the treatment of maize plants via KNOP/2 hydroponic solution during 2 week-growth under 16 h/8 h photoperiod. TPC was analyzed from phenolic extracts obtained from the roots and leaves of plants after foliar and solution treatments. Folin-Ciocalteu’s spectrophotometric procedure was used for the determination of TPC in the samples.
RESULTS:
The results showed that foliar applications with all concentrations of o-CDs induced decreases of TPC in maize leaves but did not affect these parameters in the roots. In solution treatment, the concentration of 1 mg/L of o-CDs increased TPC in the leaves, but decreased in roots.
treatment
CONCLUSIONS:
The higher efficiency achieved with the lowest o-CD concentration (1 mg/L) in foliar treatment makes this way of application advantageous compared with the solution counterpart.",
publisher = "University of Novi Sad, Faculty of Sciences, Serbia",
journal = "International BioScience Conference and the 8th International PSU – UNS Bioscience Conference",
title = "Orange carbon dots change the total phenolic content in maize",
pages = "130-129",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1845"
}

Milenković, I., Zhou, Y., Spasić, S., Leblanc, R. M., Borisev, M.,& Radotić, K.. (2021). Orange carbon dots change the total phenolic content in maize. in International BioScience Conference and the 8th International PSU – UNS Bioscience Conference
University of Novi Sad, Faculty of Sciences, Serbia., 129-130.
https://hdl.handle.net/21.15107/rcub_rimsi_1845

Milenković I, Zhou Y, Spasić S, Leblanc RM, Borisev M, Radotić K. Orange carbon dots change the total phenolic content in maize. in International BioScience Conference and the 8th International PSU – UNS Bioscience Conference. 2021;:129-130.
https://hdl.handle.net/21.15107/rcub_rimsi_1845 .

Milenković, Ivana, Zhou, Yiqun, Spasić, Slađana, Leblanc, Roger M., Borisev, Milan, Radotić, Ksenija, "Orange carbon dots change the total phenolic content in maize" in International BioScience Conference and the 8th International PSU – UNS Bioscience Conference (2021):129-130,
https://hdl.handle.net/21.15107/rcub_rimsi_1845 .

TY  - CONF
AU  - Milenković, Ivana
AU  - Zhou, Yiqun
AU  - Spasić, Slađana
AU  - Leblanc, Roger M.
AU  - Radotić, Ksenija
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1852
AB  - Carbon dots (CDs) are spherical organic nanoparticles with a huge potential for application in various biomedical purposes such as sensing, bioimaging, and drug delivery, as well as in water remediation. The discovery of CDs was very popular in the 21th century because they can be used where metal nanoparticles cannot be applied, so they are considered as their green alternative. The main advantages of these nanoparticles are their ease of preparation, solubility in water, high photoluminescence, and biocompatibility. Having all these properties in mind, the main aim of this research was to investigate the effect of orange carbon dots (oCDs), synthesized from citric acid and o-phenylenediamine as precursors, on total antioxidative activity (TAA) in maize as a model plant and agricultural species. We tested antioxidative activity as an indicator of oxidative stress and metabolic disorder in plants. TAA mainly includes the contribution of different non-enzymatic components with antioxidant capacity (vitamins, phenolic acids, sugars, etc.). The maize plants were exposed to three different concentrations (1, 5, and 10 mg L-1) of oCDs nanoparticles via KNOP/2 hydroponic solution during growth under 16 h/8 h photoperiod. After the 2 week-growth,  the leaves and roots of plants were separately harvested and collected. The results showed that oCDs did not induce any change in TAA in the leaves, but increased TAA in roots after the treatment of plants with 5 and 10 mg L-1 oCDs. It can be concluded that plant treatment with oCDs’ concentrations ≥ 5 mg L-1 leads to the increase of oxidative stress in roots as a plant organ more exposed to the nanoparticles. This research opens new possibilities in the uses of oCDs in agricultural applications.
PB  - Maize Research Institute, Zemun Polje
C3  - International Conference ”The Frontiers of Science and Technology in Crop Breeding and Production“
T1  - Influence of orange carbon dots on antioxidative activity in maize
EP  - 57
SP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1852
ER  - 

@conference{
author = "Milenković, Ivana and Zhou, Yiqun and Spasić, Slađana and Leblanc, Roger M. and Radotić, Ksenija",
year = "2021",
abstract = "Carbon dots (CDs) are spherical organic nanoparticles with a huge potential for application in various biomedical purposes such as sensing, bioimaging, and drug delivery, as well as in water remediation. The discovery of CDs was very popular in the 21th century because they can be used where metal nanoparticles cannot be applied, so they are considered as their green alternative. The main advantages of these nanoparticles are their ease of preparation, solubility in water, high photoluminescence, and biocompatibility. Having all these properties in mind, the main aim of this research was to investigate the effect of orange carbon dots (oCDs), synthesized from citric acid and o-phenylenediamine as precursors, on total antioxidative activity (TAA) in maize as a model plant and agricultural species. We tested antioxidative activity as an indicator of oxidative stress and metabolic disorder in plants. TAA mainly includes the contribution of different non-enzymatic components with antioxidant capacity (vitamins, phenolic acids, sugars, etc.). The maize plants were exposed to three different concentrations (1, 5, and 10 mg L-1) of oCDs nanoparticles via KNOP/2 hydroponic solution during growth under 16 h/8 h photoperiod. After the 2 week-growth,  the leaves and roots of plants were separately harvested and collected. The results showed that oCDs did not induce any change in TAA in the leaves, but increased TAA in roots after the treatment of plants with 5 and 10 mg L-1 oCDs. It can be concluded that plant treatment with oCDs’ concentrations ≥ 5 mg L-1 leads to the increase of oxidative stress in roots as a plant organ more exposed to the nanoparticles. This research opens new possibilities in the uses of oCDs in agricultural applications.",
publisher = "Maize Research Institute, Zemun Polje",
journal = "International Conference ”The Frontiers of Science and Technology in Crop Breeding and Production“",
title = "Influence of orange carbon dots on antioxidative activity in maize",
pages = "57-57",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1852"
}

Milenković, I., Zhou, Y., Spasić, S., Leblanc, R. M.,& Radotić, K.. (2021). Influence of orange carbon dots on antioxidative activity in maize. in International Conference ”The Frontiers of Science and Technology in Crop Breeding and Production“
Maize Research Institute, Zemun Polje., 57-57.
https://hdl.handle.net/21.15107/rcub_rimsi_1852

Milenković I, Zhou Y, Spasić S, Leblanc RM, Radotić K. Influence of orange carbon dots on antioxidative activity in maize. in International Conference ”The Frontiers of Science and Technology in Crop Breeding and Production“. 2021;:57-57.
https://hdl.handle.net/21.15107/rcub_rimsi_1852 .

Milenković, Ivana, Zhou, Yiqun, Spasić, Slađana, Leblanc, Roger M., Radotić, Ksenija, "Influence of orange carbon dots on antioxidative activity in maize" in International Conference ”The Frontiers of Science and Technology in Crop Breeding and Production“ (2021):57-57,
https://hdl.handle.net/21.15107/rcub_rimsi_1852 .

TY  - JOUR
AU  - Milenković, Ivana
AU  - Borisev, Milan
AU  - Zhou, Yiqun
AU  - Spasić, Slađana
AU  - Leblanc, Roger M.
AU  - Radotić, Ksenija
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1431
AB  - The sustained increase in leaf photosynthesis may increase crop yield. Due to many limitations, plants use much less photosynthetic capacity than is theoretically possible. Plant nanobionics investigates nanoparticle application in living plants, which improves certain plant functions. We synthesized and tested nontoxic orange carbon dots (o-CDs) for the photosynthetic efficiency increase in maize (Zea mays L.). We applied o-CDs foliarly or by adding to the growth solution. The photosynthetic parameters and content of photosynthetic pigments were recorded. The total phenolic content (TPC) and total antioxidant activity (TAA) were measured to monitor the plant antioxidant response to o-CDs. The photosynthetic parameters' values were higher for foliar than for solution application. The 1 mg/L o-CDs applied foliarly and 5 mg/L in solution increased photosynthetic parameters in leaves. The o-CDs raised photosynthetic pigments. The TAA and TPC results indicate reduced antioxidant activity in the plant organs more exposed to o-CDs, depending on the way of application.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Agricultural and Food Chemistry
T1  - Photosynthesis Enhancement in Maize via Nontoxic Orange Carbon Dots
EP  - 5451
IS  - 19
SP  - 5446
VL  - 69
DO  - 10.1021/acs.jafc.1c01094
ER  - 

@article{
author = "Milenković, Ivana and Borisev, Milan and Zhou, Yiqun and Spasić, Slađana and Leblanc, Roger M. and Radotić, Ksenija",
year = "2021",
abstract = "The sustained increase in leaf photosynthesis may increase crop yield. Due to many limitations, plants use much less photosynthetic capacity than is theoretically possible. Plant nanobionics investigates nanoparticle application in living plants, which improves certain plant functions. We synthesized and tested nontoxic orange carbon dots (o-CDs) for the photosynthetic efficiency increase in maize (Zea mays L.). We applied o-CDs foliarly or by adding to the growth solution. The photosynthetic parameters and content of photosynthetic pigments were recorded. The total phenolic content (TPC) and total antioxidant activity (TAA) were measured to monitor the plant antioxidant response to o-CDs. The photosynthetic parameters' values were higher for foliar than for solution application. The 1 mg/L o-CDs applied foliarly and 5 mg/L in solution increased photosynthetic parameters in leaves. The o-CDs raised photosynthetic pigments. The TAA and TPC results indicate reduced antioxidant activity in the plant organs more exposed to o-CDs, depending on the way of application.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Agricultural and Food Chemistry",
title = "Photosynthesis Enhancement in Maize via Nontoxic Orange Carbon Dots",
pages = "5451-5446",
number = "19",
volume = "69",
doi = "10.1021/acs.jafc.1c01094"
}

Milenković, I., Borisev, M., Zhou, Y., Spasić, S., Leblanc, R. M.,& Radotić, K.. (2021). Photosynthesis Enhancement in Maize via Nontoxic Orange Carbon Dots. in Journal of Agricultural and Food Chemistry
Amer Chemical Soc, Washington., 69(19), 5446-5451.
https://doi.org/10.1021/acs.jafc.1c01094

Milenković I, Borisev M, Zhou Y, Spasić S, Leblanc RM, Radotić K. Photosynthesis Enhancement in Maize via Nontoxic Orange Carbon Dots. in Journal of Agricultural and Food Chemistry. 2021;69(19):5446-5451.
doi:10.1021/acs.jafc.1c01094 .

Milenković, Ivana, Borisev, Milan, Zhou, Yiqun, Spasić, Slađana, Leblanc, Roger M., Radotić, Ksenija, "Photosynthesis Enhancement in Maize via Nontoxic Orange Carbon Dots" in Journal of Agricultural and Food Chemistry, 69, no. 19 (2021):5446-5451,
https://doi.org/10.1021/acs.jafc.1c01094 . .