Abstract: The present invention relates to compositions and methods for nucleic acid analyses. More particularly, this invention provides compositions and methods for differential gene expression analyses on nucleic acid arrays. This invention discloses more preferably differential gene expression analyses on nucleic acid arrays using nucleic acid samples having distinct radioactive labels. Even more particularly, this invention relates to compositions and methods for nucleic acid analysis, comprising contacting at least two differently radiolabelled nucleic acid samples on a nucleic acid array, and detecting (or comparing or quantifying) hybrids formed between the nucleic acids of the samples and the nucleic acid array. The present invention can be used to detect or monitor gene expression or to compare gene expression (e.g., differential gene expression screening), for instance, and is suitable for use in research, diagnostic and many pharmacogenomics applications, for instance.

Abstract: The present invention relates to compositions and methods for genetic analyses. More particularly, this invention provides compositions and methods for differential gene expression analyses on biological material, such as tissue sections. This invention discloses more preferably differential gene expression analyses on biological material using particular probes with distinct radioactive labels. The present invention can be used to detect or monitor gene expression, compare gene expression (e.g., differential gene expression screening) in particular in different tissues, and is suitable for instance in research, diagnostic, and many pharmacogenomics applications.

Abstract: The present invention concerns micro-arrays, their preparation and their uses. In particular, it concerns micro-arrays composed of nucleic acids immobilised on a support by means of arms in arborescent form and/or arms carrying a negative charge and/or directly on the supports carrying a negative charge. The methods and micro-arrays according to the present invention can be used for genetic expression detection or analysis, for research of genes of interest, or for diagnostic applications, for example.

Abstract: A homogeneous liquid composition for use in air freshening devices comprising 3 to 15% of dimethyl methylphosphonate, 1 to 12% of fragrance, 40 to 65% of organic solvent and 15 to 50% of water (where percentages are percentage by weight of the total composition). The composition is non-flammable in use.