The invention described herein provides a dry graphene powder composition comprising pristine graphene flakes, wherein the pristine graphene flakes are non-covalently functionalised with polymeric amphiphilic molecules and wherein the dry graphene powder composition is capable of forming a stable homogeneous dispersion in aqueous or alcoholic media, in the absence of free dispersants or stabilizers, as well as methods for producing same, and the use thereof in graphene inks, for 2D and 3D printing, for production of flexible circuits, electrodes, electrocatalysts, for fabrication of nanocomposites and for wet-spinning of pristine graphene fibers.

A method for producing a quantum dot including crystalline nanoparticle fluorescent material, wherein, using a first precursor solution and a second precursor solution containing different elements each other, the second precursor solution is sprayed as an aerosol on the heated first precursor solution, or both the first precursor solution and the second precursor solution are sprayed on a heated solvent as aerosols, and the first precursor solution and the second precursor solution are reacted with each other to synthesize a core particle containing the different elements. The method for producing quantum dots, can suppress the non-uniformity of the particle size of the quantum dots and accompany increase in the distribution of emission wavelengths in large scale synthesis.

Provided is an inorganic oxide dispersion (sol) in which inorganic oxide particles are dispersed in silicone oil.

The present invention relates to the field of methods of manufacturing of surface enhanced Raman spectroscopy (SERS) tags. The manufacturing method according to the present invention is reproducible and versatile and enables the production in an expedient manner of high quantities of SERS tags characterized by a narrow size distribution and a high ratio of low-number aggregates. SERS tags manufactured by the inventive manufacturing method described herein provide increased ensemble SERS responses.

The present invention relates to a nano-diamond dispersion solution and a method of preparing the same. The method of preparing a nano-diamond dispersion solution comprises the following steps: providing a nano-diamond aggregation; mixing the nano-diamond aggregation with a metal hydroxide solution and stirring the mixture such that the nano-diamond aggregation is separated, to obtain a mixture solution; stabilizing the mixture solution such that the mixture solution is separated into a supernatant and precipitates; and extracting the supernatant and precipitates.

The present invention relates to a combustion additive comprising a colloidal solution containing dispersed fine metal particles. The present invention also relates to a method for producing the colloid. More particularly the present teaching relates to a combustion additive having a colloid, wherein the colloid comprises metal particles providing in an alkaline aqueous solution, the metal particles being dispersed within that solution and having an average diameter in the range of 30 nm to 30 μm. The colloid can partly/fully substitute water of a water injection system or used as an air humidification component for combustion.

The present invention is related to a mesoscale colloidal particle including a hydrophobe-rich core surrounded by hydrogen bonded outer shell. The outer shell includes water and at least one hydrotrope wherein the hydrotrope molecules form hydrogen bonds with water molecules. The invention is also related to an aqueous solution including at least one mesoscale colloidal particle as well as methods of making and using such mesoscale colloidal particles and their solutions.

A process for making a conductive ink formulation for jet-printing which uses a fine-tuned molecular weight of hydrolyzed starch particles and using microwave-assisted synthesis to produce a stable, monodisperse, aqueous-based gold ink formulation. This aqueous ink formulation is shown to be highly jettable and forms films which sinter at relatively low temperatures. Printed gold film using the formulation can achieve <1.0 Ω/square sheet resistance upon drying for about 30 minutes and sinters at 200° C. thereby improving its conductivity.

The present invention relates to a combustion additive comprising a colloidal solution containing dispersed fine metal particles. The present invention also relates to a method for producing the colloid. More particularly the present teaching relates to a combustion additive having a colloid, wherein the colloid comprises metal particles providing in an alkaline aqueous solution, the metal particles being dispersed within that solution and having an average diameter in the range of 30 nm to 30 μm. The colloid can partly/fully substitute water of a water injection system or used as an air humidification component for combustion.

Water-soluble copolymers based on a) 50 to 97% by weight of one or more non-ionic, ethylenically unsaturated monomers containing amide groups, b) 0.1 to 10% by weight of one or more ethylenically unsaturated monomers containing silane groups c) 1 to 30% by weight of one or more ionic, ethylenically unsaturated monomers and optionally one or more further ethylenically unsaturated monomers, are useful as protective colloids for inorganic particle and water-insoluble polymer particle dispersions. wherein the figures in % by weight add up to 100% by weight.