Jawaharlal Nehru Centre for Advanced Scientific Research

Subi Jacob George

Chintamani Nagesa Ramachandra Rao

Mohit Kumar

Rakesh Voggu

Kotagiri Venkata Rao

K Venkata Rao

Aromatic diimide chromophores and methods for using the chromophores for the detection of volatile organic compounds are described. The chromophores are able to reversibly change colors in the presence or absence of volatile organic compounds.

Chromophores for the detection of volatile organic compounds

Sorbent polymers which are selective to taking up hydrocarbons are provided for separating hydrocarbons from fluids and taking up hydrocarbons from off of and intermixed with solid materials. The hydrocarbons may at least partially be expressed out of and recovered from the polymer by squeezing. The polymers may be re-used for picking up additional hydrocarbons. Methods for producing and using the polymers are also provided.

Hydrocarbon sorbent materials

Embodiments herein describe a composition including at least one water-soluble complex having a water-soluble separation agent including a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group; and a semiconducting single-walled carbon nanotube in an aqueous solution. Further embodiments describe a method of separating metallic single-walled carbon nanotubes and semiconducting single-walled carbon nanotubes including providing carbon nanotubes having an admixture of semiconducting single-walled carbon nanotubes and metallic single-walled carbon nanotubes; and combining the admixture with a water-soluble separation agent in an aqueous solution to form a mixture, in which the water-soluble separation agent includes a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group.

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Bengaluru, India

Subi Jacob George