The invention relates to a method for treating a nanofibrillar cellulose hydrogel, wherein the method comprises the steps of: providing a nanofibrillar cellulose hydrogel, wherein the nanofibrillar cellulose is oxidized nanofibrillar cellulose, wherein the oxidation has been carried out through N-oxyl mediated catalytic oxidation of cellulose-based raw material, and has at most 50 μmol of aldehyde groups per gram of dry nanofibrillar cellulose; and subjecting the nanofibrillar cellulose hydrogel to a heat treatment.

The invention relates to a method for treating nanofibrillar cellulose hydrogel, wherein the method comprises the steps of: providing a nanofibrillar cellulose hydrogel; and subjecting the nanofibrillar cellulose hydrogel to heat treatment, wherein the heat treatment comprises keeping the nanofibrillar cellulose hydrogel at a temperature of at least 130° C. for at least 0.5 seconds, for reducing the number of viable micro-organisms in the nanofibrillar cellulose hydrogel.

Provided are a method for preparing a hydrophobic silica aerogel by the combined use of a first surface modifier and a second surface modifier, and a hydrophobic silica aerogel prepared by using the method. A hydrophobic silica aerogel having excellent physical properties and pore characteristics as well as a high degree of hydrophobicity may be prepared with high efficiency by the preparation method according to the present invention.

The present invention is directed to a process for preparing an inorganic aerogel, the process comprising the steps of providing a composition (I) suitable to form an inorganic gel with a gelation time t.sub.G, spraying the composition (I) into supercritical carbon dioxide at a spraying time t.sub.S to obtain gel particles, and drying the gel particles obtained in step (ii) by supercritical liquid extraction, wherein the ratio t.sub.S:t.sub.G is in the range of from 0.2 to 0.99. The present invention further is directed to the inorganic aerogel as such as well as the use of the inorganic aerogel according to the invention in particular for medical and pharmaceutical applications or for thermal insulation.

The present invention relates to gel compositions comprising at least one entrapped active component.

The object of the present invention is to provide an emulsion composition that maintains emulsion stability even after high temperature process such as sterilization (heat resistance), shows a small change in particle size distribution between before and after heating, and maintains emulsion stability even under conditions where transformation of an oil phase component (for example, solidification or crystallization of the oil phase component due to temperature drop, or melting of the oil phase component due to temperature rise) occurs (temperature drop resistance), wherein the composition is easily handled during the production process. The object is solved by an oil-in-water emulsion composition containing solid particles, a predefined surfactant, an oil phase component, and an aqueous phase component, wherein the oil phase component includes a predefined oil component and the solid particles are distributed along the interface between the oil phase component and the aqueous phase component.

The object of the present invention is to provide an emulsion composition that maintains emulsion stability even after high temperature process such as sterilization (heat resistance), shows a small change in particle size distribution between before and after heating, and maintains emulsion stability even under conditions where transformation of an oil phase component (for example, solidification or crystallization of the oil phase component due to temperature drop, or melting of the oil phase component due to temperature rise) occurs (temperature drop resistance), wherein the composition is easily handled during the production process. The object is solved by an oil-in-water emulsion composition containing solid particles, a predefined surfactant, an oil phase component, and an aqueous phase component, wherein the oil phase component includes a predefined oil component and the solid particles are distributed along the interface between the oil phase component and the aqueous phase component.

The invention relates to a new method of preparation of a polynuclear iron compound stabilized by carbohydrates and/or humic acid or forming a complex with carbohydrates and/or humic acid using a pressure-driven filtration process.

The present disclosure provides systems and methods for making a hydrogel comprising a cell, cell nucleus, or one or more components derived from a cell or cell nucleus. A method for making a hydrogel may comprise providing a cell or cell nucleus, a first polymer, wherein the first polymer comprises a plurality of first crosslink precursors, each of the plurality of first crosslink precursors comprising an azide group; providing a second polymer, wherein the second polymer comprises a plurality of second crosslink precursors, each of the plurality of second crosslink precursors comprising an alkyne group; and crosslinking the first polymer and the second polymer via a reaction between a first section of the first crosslink precursors and a second section of the second crosslink precursors, thereby providing the hydrogel comprising the cell or cell nucleus.

The present invention provides a fiber-reinforced aerogel material which can be used as insulation in thermal battery applications. The fiber-reinforced aerogel material is highly durable, flexible, and has a thermal performance that exceeds the insulation materials currently used in thermal battery applications. The fiber-reinforced aerogel insulation material can be as thin as 1 mm less, and can have a thickness variation as low as 2% or less. Also provided is a method for improving the performance of a thermal battery by incorporating a reinforced aerogel material into the thermal battery. Further provided is a casting method for producing thin fiber-reinforced aerogel materials.