Large scale synthesis of graphene quantum dots (GQDs) from waste biomass and their use as an efficient and selective photoluminescence on–off–on probe for Ag<sup>+</sup>ions

Suryawanshi, Anil; Biswal, Mandakini; Mhamane, Dattakumar; Gokhale, Rohan; Patil, S. F.; Guin, Debanjan; Ogale, Satishchandra

doi:10.1039/c4nr02494j

Cited by 215 publications

(164 citation statements)

References 33 publications

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“…In 2012, Suryawanshi et al. reported the preparation of NCDs by oxidation of dead neem leaves by using H 2 SO 4 /HNO 3 . The as‐obtained NCDs contain functional groups such as −COOH and epoxy groups, which prefer nonradiative recombination of electron–hole pairs in the intrinsic state.…”

Section: Methods For the Synthesis Of Ncdsmentioning

confidence: 99%

Natural‐Product‐Derived Carbon Dots: From Natural Products to Functional Materials

et al. 2017

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Nature provides an almost limitless supply of sources that inspire scientists to develop new materials with novel applications and less of an environmental impact. Recently, much attention has been focused on preparing natural‐product‐derived carbon dots (NCDs), because natural products have several advantages. First, natural products are renewable and have good biocompatibility. Second, natural products contain heteroatoms, which facilitate the fabrication of heteroatom‐doped NCDs without the addition of an external heteroatom source. Finally, some natural products can be used to prepare NCDs in ways that are very green and simple relative to traditional methods for the preparation of carbon dots from man‐made carbon sources. NCDs have shown tremendous potential in many fields, including biosensing, bioimaging, optoelectronics, and photocatalysis. This Review addresses recent progress in the synthesis, properties, and applications of NCDs. The challenges and future direction of research on NCD‐based materials in this booming field are also discussed.

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Section: Methods For the Synthesis Of Ncdsmentioning

confidence: 99%

Natural‐Product‐Derived Carbon Dots: From Natural Products to Functional Materials

et al. 2017

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“…GQDs were used to detect Ag + [253], Hg 2+ [254], Cu 2+ [255,256], Cr 6+ [257], Ni 2+ [258], and Fe 3+ [259]. The Lee group [260] reported a green synthesis method for graphitic carbon QDs (GCQDs) as a fluorescent sensing platform for the highly sensitive and selective detection of Fe 3+ ions.…”

Section: Carbon Materials-based Fluorescent Nanoprobes For Sensingmentioning

confidence: 99%

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

et al. 2016

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Summary Recent advances in nanoscale science and technology have generated nanomaterials with unique optical properties. Over the past decade, numerous fluorescent nanoprobes have been developed for highly sensitive and selective sensing and imaging of metal ions, both in vitro and in vivo. In this review, we provide an overview of the recent development of the design and optical properties of the different classes of fluorescent nanoprobes based on noble metal nanomaterials, upconversion nanoparticles, semiconductor quantum dots, and carbon-based nanomaterials. We further detail their application in the detection and quantification of metal ions for environmental monitoring, food safety, medical diagnostics, as well as their use in biomedical imaging in living cells and animals.

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“…To give a taste of the luxurious proliferation of potential raw materials used to create carbon dots we append here an incomplete list, it includes: soot (Allam and Sarkar 2011; Liu et al 2007; Vinci and Colón 2012; Baker and Colón 2009), carbon nanotubes (Bottini et al 2006; Zhou et al 2007), carbon fibers (Vinci et al 2015), graphene sheets (Pan et al 2010), activated carbon (Qiao et al 2010; Li et al 2011b; Dong et al 2010), graphite (Sun et al 2006; Hu et al 2009; Cao et al 2007; Zhao et al 2008; Lu et al 2009; Zheng et al 2009, 2011; Wang et al 2011) various small organic molecules (Zheng et al 2015) such as acetic acid (Fang et al 2011), amino acids (Wei et al 2014), citric acid or glucose (Dong et al 2012a, b), sucrose (Zhang et al 2010), carbohydrates (Liu et al 2011a, b; Peng and Travas-Sejdic 2009), C 60 molecules (Lu et al 2011), and nanodiamonds (Yu et al 2005a, b; Chang et al 2008; Wolfbeis 2015). Research on these eco-friendly nanoparticles blossomed from 2014 onwards, extending the syntheses to a further wide range of natural raw-stuffs and ecologically friendly syntheses including: wool (Wang et al 2016a), flour (Zhang et al 2015), bagasse (Du et al 2014), radishes (Liu et al 2017a), orange juice (Sahu et al 2012), peaches (Atchudan et al 2016), coffee grounds (Hsu et al 2012), garlic (Sun et al 2016), coriander (Sachdev and Gopinath 2015), papaya (Wang et al 2016a, b, c, d), carrots (Liu et al 2017b), potatoes (Shen et al 2017), waste frying oil (Hu et al 2014), waste biomass (Suryawanshi et al 2014) and pigeon feathers, eggs and manure (Ye et al 2017); the list becomes longer almost every day. The number of protocols reported for preparation of carbon dots is almost equally long, see below.…”

Section: Carbon Dotsmentioning

confidence: 99%

Molecular imaging with nanoparticles: the dwarf actors revisited 10 years later

Thurner

Debbage

2018

Histochem Cell Biol

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We explore present-day trends and challenges in nanomedicine. Creativity in the laboratories continues: the published literature on novel nanoparticles is now vast. Nanoagents are discussed here which are composed entirely of strongly photoluminescent materials, tunable to desired optical properties and of inherently low toxicity. We focus on “quantum nanoparticles” prepared from allotropes of carbon. The principles behind strong, tunable photoluminescence are quantum mechanical: we present them in simple outline. The major industries racing to develop these materials can offer significant technical guidance to nanomedicine, which could help to custom-design strongly signalling nanoagents specifically for stated clinical applications. Since such agents are small, they can be targeted easily, making active targeting possible. We consider it timely now to study the interactions nanoparticles undergo with tissue components in living animals and to learn to understand and overcome the numerous barriers the organism interposes between the blood and targets in or on parenchymal cells. As the near infra-red spectrum opens up, detection of glowing nanoparticles several centimeters deep in a living human subject becomes calculable and we present a simple way to do this. Finally, we discuss the slow-fuse and resource-inefficient entry of nanoparticles into clinical application. A first possible reason is failure to target across the body’s barriers, see above. Second, in the sparse translational landscape funding and support gaps yawn widely between academic research and subsequent development. We consider the agendas of the numerous “stakeholders” participating in this sad landscape and point to some faint glimmers of hope for the future.

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Large scale synthesis of graphene quantum dots (GQDs) from waste biomass and their use as an efficient and selective photoluminescence on–off–on probe for Ag⁺ions

Cited by 215 publications

References 33 publications

Natural‐Product‐Derived Carbon Dots: From Natural Products to Functional Materials

Natural‐Product‐Derived Carbon Dots: From Natural Products to Functional Materials

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

Molecular imaging with nanoparticles: the dwarf actors revisited 10 years later

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Large scale synthesis of graphene quantum dots (GQDs) from waste biomass and their use as an efficient and selective photoluminescence on–off–on probe for Ag+ions

Cited by 215 publications

References 33 publications

Natural‐Product‐Derived Carbon Dots: From Natural Products to Functional Materials

Natural‐Product‐Derived Carbon Dots: From Natural Products to Functional Materials

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

Molecular imaging with nanoparticles: the dwarf actors revisited 10 years later

Contact Info

Product

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Large scale synthesis of graphene quantum dots (GQDs) from waste biomass and their use as an efficient and selective photoluminescence on–off–on probe for Ag⁺ions