A device for the multi-stage, modular purification of drinking water is described, wherein a module comprises a chelating gel or a chelating and a bactericidal gel for heavy metal removal and/or for heavy metal removal and bacterial removal.

The invention discloses a separation matrix comprising polysaccharide gel beads, wherein said polysaccharide gel beads comprise embedded fibers. The invention further discloses a method of preparing the separation matrix and use of the matrix for separation purposes.

The invention discloses a separation matrix comprising polysaccharide gel beads, wherein said polysaccharide gel beads comprise embedded fibers. The invention further discloses a method of preparing the separation matrix and use of the matrix for separation purposes.

The present invention relates to a method for measuring a polymer modification ratio, and more particularly, to a method for measuring a polymer modification ratio, which includes preparing a first solution by dissolving a polymer mixture containing a modified polymer and an unmodified polymer in a first solvent, injecting the first solution into a column filled with an adsorbent, adsorbing the modified polymer onto the adsorbent, and eluting the first solution in which the unmodified polymer is dissolved, transferring the eluted first solution to a detector, injecting a second solvent into the column to elute the second solution in which the adsorbed modified polymer is dissolved, and transferring the eluted second solution to the detector.

The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting the processability of polymers using a molecular weight distribution curve.

A method for detecting a gas sample includes the following steps of: providing a carbon aerogel sleeve; introducing a gas sample to the carbon aerogel sleeve, and then sequentially extracting, concentrating, activating, and re-concentrating the gas sample adsorbed by the carbon aerogel and detecting a concentration of the re-concentrated gas sample by a gas chromatograph-mass spectrometer (GC-MS); and extracting the carbon aerogel for several hours with reflux in a dichloromethane solvent and a n-hexane solvent several times per hour to remove the residual gas sample, and then drying the extracted carbon aerogel for reuse, wherein the dichloromethane solvent and the n-hexane solvent are at a volume ratio of 0.001-1000.

Ligands and methods for selectively binding hypermethylated DNA from a sample. The ligands include a CG-region binding molecule-conjugated resin derived from the aminoglycoside antibiotic amikacin. Furthermore, the CG-region binding molecule may be conjugated to the resin with a crosslinker and/or may be modified with one or more of long chain and short chain alkyl, aryl, piperazinyl, piperidyl, and pyrrolidyl groups. Such ligands are used in methods for contacting a sample to thereby selectively bind hypermethylated DNA.

Ligands and methods for selectively binding hypermethylated DNA from a sample. The ligands include a CG-region binding molecule-conjugated resin derived from the aminoglycoside antibiotic amikacin. Furthermore, the CG-region binding molecule may be conjugated to the resin with a crosslinker and/or may be modified with one or more of long chain and short chain alkyl, aryl, piperazinyl, piperidyl, and pyrrolidyl groups. Such ligands are used in methods for contacting a sample to thereby selectively bind hypermethylated DNA.

A polyethylene terephthalate aerogel. There is provided a polyethylene terephthalate (PET) aerogel comprising a porous network of cross-linked recycled PET fibers, wherein the PET aerogel has a thermal conductivity of 0.030-0.050 W/m K. There is also provided a method of forming the PET aerogel.

A polyethylene terephthalate aerogel. There is provided a polyethylene terephthalate (PET) aerogel comprising a porous network of cross-linked recycled PET fibers, wherein the PET aerogel has a thermal conductivity of 0.030-0.050 W/m K. There is also provided a method of forming the PET aerogel.