Photoluminescent reduced graphene oxide quantum dots from latex of Calotropis gigantea for metal sensing, radical scavenging, cytotoxicity, and bioimaging in Artemia salina: A greener route

In this work, we report the fabrication of green fluorescent reduced graphene oxide quantum dots (rGOQDs) from the latex of Calotropis gigantea by simple one-step microwave assisted greener route. The latex of Calotropis gigantea calcined at 300°C and its ethanolic extract is used for the synthesis...

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Veröffentlicht in:Journal of photochemistry and photobiology. B, Biology Biology, 2018-01, Vol.178, p.371-379
Hauptverfasser: Murugesan, Balaji, Sonamuthu, Jegatheeswaran, Pandiyan, Nithya, Pandi, Boomi, Samayanan, Selvam, Mahalingam, Sundrarajan
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container_title Journal of photochemistry and photobiology. B, Biology
container_volume 178
creator Murugesan, Balaji
Sonamuthu, Jegatheeswaran
Pandiyan, Nithya
Pandi, Boomi
Samayanan, Selvam
Mahalingam, Sundrarajan
description In this work, we report the fabrication of green fluorescent reduced graphene oxide quantum dots (rGOQDs) from the latex of Calotropis gigantea by simple one-step microwave assisted greener route. The latex of Calotropis gigantea calcined at 300°C and its ethanolic extract is used for the synthesis of QDs, The rGOQDs showed particle size ranging from 2 to 8nm and it exhibited green fluorescent in longer UV region at 360–520nm. The rGOQDs graphitic nature was confirmed by RAMAN and XRD analysis. The FTIR, XPS demonstrate that presence of functional groups such as CO, COC, –OH, hence it's addressing them as rGOQDs. It is used to design the greener and economically adopted fluorescent probe for the detection of Pb2+ ions. It provides simple and appropriate for the selective and sensitive detection of Pb2+ ions in water purification process. It also trapped the free radicals and neutralized that and act as an excellent radical scavenger in DPPH radical scavenging assessment. These rGOQDs showed excellent biocompatibility on brine shrimp nauplii (Artemia salina) up to 160μg/mL for 24h incubation. Furthermore, rGOQDS were demonstrated as fluorescent bioimaging probe selectively in the inner digestion part of Artemia salina. In summary, stable, economically viable, highly biocompatible, greener method based rGOQDs were prepared for heavy metal ion detecting, radical scavenging, bioimaging applications which can play a vital role in the future nanotechnology-based biomedical field. [Display omitted] •Stable green fluorescent rGOQDs prepared from the latex of Calotropis gigantea.•Synthesized rGOQDs are spherical, monodispersed and particles are 2–8nm in size.•The rGOQDs performed as a fluorescent probe for the selective sensing of Pb2+ ion.•The hydroxyl group present in the rGOQDs was able to scavenge the free radicals.•It exhibit high biocompatible and excellent bio-imaging probe for Artemia salina.
doi_str_mv 10.1016/j.jphotobiol.2017.11.031
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The latex of Calotropis gigantea calcined at 300°C and its ethanolic extract is used for the synthesis of QDs, The rGOQDs showed particle size ranging from 2 to 8nm and it exhibited green fluorescent in longer UV region at 360–520nm. The rGOQDs graphitic nature was confirmed by RAMAN and XRD analysis. The FTIR, XPS demonstrate that presence of functional groups such as CO, COC, –OH, hence it's addressing them as rGOQDs. It is used to design the greener and economically adopted fluorescent probe for the detection of Pb2+ ions. It provides simple and appropriate for the selective and sensitive detection of Pb2+ ions in water purification process. It also trapped the free radicals and neutralized that and act as an excellent radical scavenger in DPPH radical scavenging assessment. These rGOQDs showed excellent biocompatibility on brine shrimp nauplii (Artemia salina) up to 160μg/mL for 24h incubation. Furthermore, rGOQDS were demonstrated as fluorescent bioimaging probe selectively in the inner digestion part of Artemia salina. In summary, stable, economically viable, highly biocompatible, greener method based rGOQDs were prepared for heavy metal ion detecting, radical scavenging, bioimaging applications which can play a vital role in the future nanotechnology-based biomedical field. [Display omitted] •Stable green fluorescent rGOQDs prepared from the latex of Calotropis gigantea.•Synthesized rGOQDs are spherical, monodispersed and particles are 2–8nm in size.•The rGOQDs performed as a fluorescent probe for the selective sensing of Pb2+ ion.•The hydroxyl group present in the rGOQDs was able to scavenge the free radicals.•It exhibit high biocompatible and excellent bio-imaging probe for Artemia salina.</description><identifier>ISSN: 1011-1344</identifier><identifier>EISSN: 1873-2682</identifier><identifier>DOI: 10.1016/j.jphotobiol.2017.11.031</identifier><identifier>PMID: 29195214</identifier><language>eng</language><publisher>Switzerland: Elsevier B.V</publisher><subject>Analysis ; Artemia ; Artemia salina ; Biocompatibility ; Bioimaging ; Calotropis gigantea ; Cytotoxicity ; DPPH radical scavenging ; Fabrication ; Flowers &amp; plants ; Fluorescent indicators ; Free radicals ; Functional groups ; Graphene ; Heavy metals ; Latex ; Lead ; Medical imaging ; Metal ions ; Nanotechnology ; Pb2 + ion sensing ; Photoluminescence ; Purification ; Quantum dots ; Reduced graphene oxide quantum dots ; Saline water ; Scavenging ; Toxicity ; Water purification ; Water treatment ; X ray photoelectron spectroscopy</subject><ispartof>Journal of photochemistry and photobiology. 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It also trapped the free radicals and neutralized that and act as an excellent radical scavenger in DPPH radical scavenging assessment. These rGOQDs showed excellent biocompatibility on brine shrimp nauplii (Artemia salina) up to 160μg/mL for 24h incubation. Furthermore, rGOQDS were demonstrated as fluorescent bioimaging probe selectively in the inner digestion part of Artemia salina. In summary, stable, economically viable, highly biocompatible, greener method based rGOQDs were prepared for heavy metal ion detecting, radical scavenging, bioimaging applications which can play a vital role in the future nanotechnology-based biomedical field. 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B, Biology</jtitle><addtitle>J Photochem Photobiol B</addtitle><date>2018-01</date><risdate>2018</risdate><volume>178</volume><spage>371</spage><epage>379</epage><pages>371-379</pages><issn>1011-1344</issn><eissn>1873-2682</eissn><abstract>In this work, we report the fabrication of green fluorescent reduced graphene oxide quantum dots (rGOQDs) from the latex of Calotropis gigantea by simple one-step microwave assisted greener route. The latex of Calotropis gigantea calcined at 300°C and its ethanolic extract is used for the synthesis of QDs, The rGOQDs showed particle size ranging from 2 to 8nm and it exhibited green fluorescent in longer UV region at 360–520nm. The rGOQDs graphitic nature was confirmed by RAMAN and XRD analysis. The FTIR, XPS demonstrate that presence of functional groups such as CO, COC, –OH, hence it's addressing them as rGOQDs. It is used to design the greener and economically adopted fluorescent probe for the detection of Pb2+ ions. It provides simple and appropriate for the selective and sensitive detection of Pb2+ ions in water purification process. It also trapped the free radicals and neutralized that and act as an excellent radical scavenger in DPPH radical scavenging assessment. These rGOQDs showed excellent biocompatibility on brine shrimp nauplii (Artemia salina) up to 160μg/mL for 24h incubation. Furthermore, rGOQDS were demonstrated as fluorescent bioimaging probe selectively in the inner digestion part of Artemia salina. In summary, stable, economically viable, highly biocompatible, greener method based rGOQDs were prepared for heavy metal ion detecting, radical scavenging, bioimaging applications which can play a vital role in the future nanotechnology-based biomedical field. [Display omitted] •Stable green fluorescent rGOQDs prepared from the latex of Calotropis gigantea.•Synthesized rGOQDs are spherical, monodispersed and particles are 2–8nm in size.•The rGOQDs performed as a fluorescent probe for the selective sensing of Pb2+ ion.•The hydroxyl group present in the rGOQDs was able to scavenge the free radicals.•It exhibit high biocompatible and excellent bio-imaging probe for Artemia salina.</abstract><cop>Switzerland</cop><pub>Elsevier B.V</pub><pmid>29195214</pmid><doi>10.1016/j.jphotobiol.2017.11.031</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-3227-1158</orcidid><orcidid>https://orcid.org/0000-0002-9609-7913</orcidid></addata></record>
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ispartof Journal of photochemistry and photobiology. B, Biology, 2018-01, Vol.178, p.371-379
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subjects Analysis
Artemia
Artemia salina
Biocompatibility
Bioimaging
Calotropis gigantea
Cytotoxicity
DPPH radical scavenging
Fabrication
Flowers & plants
Fluorescent indicators
Free radicals
Functional groups
Graphene
Heavy metals
Latex
Lead
Medical imaging
Metal ions
Nanotechnology
Pb2 + ion sensing
Photoluminescence
Purification
Quantum dots
Reduced graphene oxide quantum dots
Saline water
Scavenging
Toxicity
Water purification
Water treatment
X ray photoelectron spectroscopy
title Photoluminescent reduced graphene oxide quantum dots from latex of Calotropis gigantea for metal sensing, radical scavenging, cytotoxicity, and bioimaging in Artemia salina: A greener route
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