The present invention generally relates to droplet libraries and to systems and methods for the formation of libraries of droplets. The present invention also relates to methods utilizing these droplet libraries in various biological, chemical, or diagnostic assays.

The present invention generally relates to droplet libraries and to systems and methods for the formation of libraries of droplets. The present invention also relates to methods utilizing these droplet libraries in various biological, chemical, or diagnostic assays.

Disclosed herein are methods for tracking solutions, (e.g., reaction conditions in solutions). In some embodiments, the method comprises: contacting a first lanthanide-chelator complex to a first solution to generate a first barcoded solution, wherein the first lanthanide-chelator complex comprises a first lanthanide chelated by a first chelator; contacting a second lanthanide-chelator complex to a second solution to generate a second barcoded solution, wherein the second lanthanide-chelator complex comprises a second lanthanide chelated by a second chelator; mixing the first barcoded solution and the second barcoded solution to form one or more mixtures; and identifying the first lanthanide ions in the mass spectrum and the second lanthanide ions in the mass spectrum to track the condition of each of the one or more mixtures.

The present invention is useful in screening for biomarkers associated with any other disease or condition. Such diseases and conditions range from the neurological diseases, autoimmune diseases and cancers identified above as well as any other disease or condition that has a biomarker such as an antibody or other characterizing protein or biomolecule associated with the disease or progression of the disease. The large ligand libraries of the invention can be used directly in biological fluid, under the appropriate experimental conditions and according to the processes recited herein, to screen for such markers and without the need to use fewer support members (e.g. about 100,000 or less) or without the need to transfer such peptoids or ligands to a microarray before screening the biological fluid. In addition, the ligand libraries may also be used to screen for cell based receptors that specifically relate to a particular cell surface marker.

The present invention is useful in screening for biomarkers associated with any other disease or condition. Such diseases and conditions range from the neurological diseases, autoimmune diseases and cancers identified above as well as any other disease or condition that has a biomarker such as an antibody or other characterizing protein or biomolecule associated with the disease or progression of the disease. The large ligand libraries of the invention can be used directly in biological fluid, under the appropriate experimental conditions and according to the processes recited herein, to screen for such markers and without the need to use fewer support members (e.g. about 100,000 or less) or without the need to transfer such peptoids or ligands to a microarray before screening the biological fluid. In addition, the ligand libraries may also be used to screen for cell based receptors that specifically relate to a particular cell surface marker.

The present invention generally relates to droplet libraries and to systems and methods for the formation of libraries of droplets. The present invention also relates to methods utilizing these droplet libraries in various biological, chemical, or diagnostic assays.

The present invention generally relates to droplet libraries and to systems and methods for the formation of libraries of droplets. The present invention also relates to methods utilizing these droplet libraries in various biological, chemical, or diagnostic assays.

The invention generally relates to methods for quantifying an amount of enzyme molecules. Systems and methods of the invention are provided for measuring an amount of target by forming a plurality of fluid partitions, a subset of which include the target, performing an enzyme-catalyzed reaction in the subset, and detecting the number of partitions in the subset. The amount of target can be determined based on the detected number.

The invention generally relates to methods for quantifying an amount of enzyme molecules. Systems and methods of the invention are provided for measuring an amount of target by forming a plurality of fluid partitions, a subset of which include the target, performing an enzyme-catalyzed reaction in the subset, and detecting the number of partitions in the subset. The amount of target can be determined based on the detected number.

The invention generally relates to methods for quantifying an amount of enzyme molecules. Systems and methods of the invention are provided for measuring an amount of target by forming a plurality of fluid partitions, a subset of which include the target, performing an enzyme-catalyzed reaction in the subset, and detecting the number of partitions in the subset. The amount of target can be determined based on the detected number.