Synthesis and characterization of water-soluble carbon nanotubes from mustard soot

Monitoring of adulterated and toxic food colors is important due to their potential toxicity and pathogenicity. Here, we repot an Ln-POM (lanthanide polyoxometalate) cluster, {[Na 10 (PrW 10 O 36 )] 2 Á130H 2 O}, with carbon nano-onion (CNO) hybrid composite which is a highly efficient sensor for the rapid detection of toxic dyes like metanil yellow, auramine O, Orange II and in allura red (red 40) as low as 3.83; 4.73; 4.14 and 2.90 nmol ml -1 concentration, respectively, by fluorescence spectroscopy.

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“…Synthesis of carbon nano-onion was made by following the established procedures (Dubey et al 2005;Ghosh et al 2011). …”

Section: Synthesis Of Carbon Nano-onion (Cno)mentioning

confidence: 99%

Nanocarbon–{[Na10(PrW10O36)]2·130H2O} composite to detect toxic food coloring dyes at nanolevel

Dutta

Sarkar

2016

Appl Nanosci

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“…The carbon-centric free radicals are trapped in the network structure and exist due to spin frustration. [25][26][27] Such carbon-centric free radicals are extremely stable and could not be reduced or oxidized by conventional reducing or oxidizing agents. [25][26][27] Apart from carbon other elements do also show stable free radicals.…”

Section: Esr Studiesmentioning

confidence: 99%

Presence of stable carbon centric free radicals and ferromagnetic elements in the antennae and the wings of nocturnal silk moth: A magnetic nanostructure for magneto sensing

Roy¹,

Meena²,

Singh³

et al. 2013

Mat Express

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This work addresses an interesting, interdisciplinary problem of nature-"the mechanism by which animal senses the earth's magnetic field and navigate". Currently there are two existing theories trying to explain, "How the animal senses the magnetic field of earth". One theory is based on the presence of biogenic magnetic materials in the body of the animals. Such magnetic materials which are present inside the body, orients itself according to the earth's weak magnetic field and convey the information to the nervous system to develop the navigational map. The second theory is based on a light dependent photochemical reaction. A photochemical reaction leads to the generation of radical pairs, which helps in sensing the weak magnetic field of the earth. In this work, we are proposing a new model of magnetoreception. Unlike the existing radical pair system of magnetoreception, where a light-dependent reaction is essential to generate free radicals, here we show the presence of a large pool of stable carbon-centric free radicals in the nano-domains of the antennae and the wings of silk moth. This stable pool of carbon-centric free radicals is intrinsic in the nano-domains of these anatomical structures and responds to weak magnetic fields similar to that of Earth's (50 T) even in the absence of light. Hence we are proposing that nocturnal animals in their navigation could utilize such a light independent mechanism. We further observed the presence of ferromagnetic elements (Fe, Ni, Co, Mn) in these structures. In conclusion, we have discussed how carbon centric free radicals along with other ferromagnetic components present in the antennae and the wings of the nocturnal silk moth, might help them to avoid the bats.

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“…The soot was obtained and purified using soxhlet extraction, primarily by petroleum ether, toluene, and alcohol and lastly by water to separate the unburnt oil and to remove other soluble impurities from the soot. Then, it finally was air dried [49]. SEM showed the presence of an extensive networked tubular structure with different types of junctions and branching of water-soluble CNTs (wsCNTs) (Fig.…”

Section: Synthesis Of Cntsmentioning

confidence: 99%

Carbon-allotropes: synthesis methods, applications and future perspectives

Karthik¹,

Himaja²,

Singh³

2014

Carbon letters

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The element carbon has been used as a source of energy for the past few hundred years, and now in this era of technology, carbon has played a significant and very prominent role in almost all fields of science and technology. So as an honour to this marvellous element, we humans should know about its various forms of existence. In this review article, we shed light on all possible carbon-allotropes; similarities in their synthesis techniques and the starting materials; their wide range of possible availability; and finally, future perspectives and applications. A brief introduction is given on the types, structures, and shapes of the allotropes of carbon for a better understanding.

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Synthesis and characterization of water-soluble carbon nanotubes from mustard soot

Cited by 50 publications

References 57 publications

Nanocarbon–{[Na10(PrW10O36)]2·130H2O} composite to detect toxic food coloring dyes at nanolevel

Nanocarbon–{[Na10(PrW10O36)]2·130H2O} composite to detect toxic food coloring dyes at nanolevel

Presence of stable carbon centric free radicals and ferromagnetic elements in the antennae and the wings of nocturnal silk moth: A magnetic nanostructure for magneto sensing

Carbon-allotropes: synthesis methods, applications and future perspectives

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