Abstract: An element for the attachment of protein arrays, the element comprising a surface to which are attached a plurality of piperazine functional groups wherein the piperazine functional groups are represented by Formula I: where R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, are hydrogen, alkyl, alkenyl, alkynyl, alkylhalo, cycloalkyl, cycloalkenyl, alkylthio, alkoxy, with the proviso that at least one of R1 to R10 be a non-labile chemical unit that attaches the piperazine functional group to the surface of the element.

Abstract: The present invention relates to a polymer microsphere comprising at least one polymer and at least one bound latent colorant, wherein the microsphere is stabilized by at least one stabilizing polymer. The invention also includes a method of preparing polymer microspheres comprising combining latent colorant, ethylenically unsaturated monomer, stabilizing polymer, and an initiator in solvent and initiating polymerization to form a polymeric microsphere stabilized by a stabilizing polymer bound to the surface of the polymeric microsphere.

Abstract: A method of making a microarray comprising the steps of: providing a support; coating on the support a receiving layer to receive microspheres, the receiving layer being capable of undergoing sol/gel transition; coating on the receiving layer a dispersion of microspheres in a carrier fluid, wherein the carrier fluid contains at least one crosslinking agent and is capable of solvating the receiving layer; allowing the microspheres to partially submerge into the receiving layer; creating conditions to induce sol/gel transition in the receiving layer, thus immobilizing the microspheres; evaporating off the carrier fluid; and allowing crosslinking reaction between the receiving layer and the crosslinker in the carrier fluid.

Abstract: The present invention relates to a method of particle separation comprising preparing a suspension of particles containing at least one recognizable target particle in a suspending solution, labeling the target particle with a conjugate marker, wherein the conjugate marker comprises at least one recognition unit for the recognizable target particle and at least one peroxidase enzyme, contacting a gelatin surface with the suspending solution, adding developer to the suspending solution in contact with the gelatin surface and in the presence of phenol to attach the target particle to the gelatin surface, and washing the gelatin surface to remove unattached particles. The method may also include detecting the presence of the target particle on the gelatin surface as well as detaching and recovering the attached particles after removal of the non-target particles.

Abstract: The present invention relates to a method of detecting biological analytes comprising suspending a target analyte in a suspending solution containing polymeric particles marked with a probe, wherein the probe has an affinity for said target analyte; adding recognition unit-peroxidase conjugate marker to the suspending solution; forming a complex of the target analyte, the polymeric particles marked with a probe, and the recognition unit-peroxidase conjugate marker; contacting a gelatin surface with the suspending solution; adding developer to the suspending solution in contact with the gelatin surface in the presence of phenol to attach the complex to the gelatin surface; washing the gelatin surface; and detecting the complex attached to the gelatin surface.

Abstract: The present invention relates to a method of detecting nucleic acids comprising suspending at least one recognizable target nucleic acid in a suspending solution containing polymeric particles marked with a probe, wherein the probe has an affinity for the target nucleic acid, adding a recognition unit-peroxidase conjugate marker to the suspending solution, forming a complex of the polymeric particles marked with a probe, the target nucleic acid and the recognition unit-peroxidase conjugate marker, contacting the suspending solution with a gelatin surface, adding a developer to the suspending solution in contact with the gelatin surface in the presence of phenol to attach the complex to the gelatin surface, washing the gelatin surface, and detecting the complex attached to the gelatin surface.

Abstract: The present invention relates to a method of particle separation comprising preparing a suspension of particles containing at least one recognizable target particle in a suspending solution, labeling the target particle with a conjugate marker, wherein the conjugate marker comprises at least one recognition unit for the recognizable target particle and at least one peroxidase enzyme, contacting a gelatin surface with the suspending solution, adding developer to the suspending solution in contact with the gelatin surface and in the presence of phenol to attach the target particle to the gelatin surface, and washing the gelatin surface to remove unattached particles. The method may also include detecting the presence of the target particle on the gelatin surface as well as detaching and recovering the attached particles after removal of the non-target particles.

Abstract: A method of making a microarray comprising the steps of:—providing a support;—coating on the support a fluid composition containing microspheres and gelatin;—immobilizing the microspheres in the gelatin coating;—partially digesting the gelatin with an enzyme to expose surfaces of the microspheres; and—removing the enzyme and digested gelatin from the coating.

Abstract: A method of identifying nucleic acid samples comprising: providing a mircoarray including a substrate coated with a composition including a population of micro-spheres dispersed in a fluid containing a gelling agent or a precursor to a gelling agent and immobilized at random positions on the substrate, at least one sub-population of said population micro-spheres containing an optical barcode generated from at least one colorant associated with the micro-spheres and including a nucleic acid probe sequence; contacting said array with a target nucleic acid sequence; and detecting the color barcode of said sub-population of micro-spheres due to the interaction of said probe nucleic acid sequence and said target nucleic acid sequence.

Abstract: There are disclosed colloids containing polymer-modified core-shell particle carrier. The described colloids containing core-shell nanoparticulate carrier particles wherein the shell contains a polymer having amine functionalities. The described carrier particles are stable under physiological conditions.

Abstract: The invention relates to a method of forming a colloidal dispersion comprising simultaneously bringing together core particles and shell material in a high shear mixing zone within a dispersion medium to form core-shell particles.

Abstract: A method of identifying nucleic acid samples comprising: providing a mircoarray including a substrate coated with a composition including a population of nucleic acid probe modified micro-spheres immobilized in a coating containing a gelling agent or a precursor to a gelling agent, wherein a first portion of the micro-spheres is submerged in the gelatin coating and a second portion is exposed above the gelatin coating and is substantially free of gelatin, at least one sub-population of the population micro-spheres containing an optical barcode generated from at least one colorant associated with the micro-spheres and including a nucleic acid probe sequence; contacting the array with a target nucleic acid sequence; and detecting the color barcode of the sub-population of micro-spheres due to the interaction of the probe nucleic acid sequence and the fluorescently/chemiluminescently labeled nucleic acid sample target nucleic acid sequence.

Abstract: The present invention relates to a polymer microsphere comprising at least one polymer and at least one bound latent colorant, wherein the microsphere is stabilized by at least one stabilizing polymer. The invention also includes a method of preparing polymer microspheres comprising combining latent colorant, ethylenically unsaturated monomer, stabilizing polymer, and an initiator in solvent and initiating polymerization to form a polymeric microsphere stabilized by a stabilizing polymer bound to the surface of the polymeric microsphere.

Abstract: A coating composition for making a protein microarray, the composition comprising a gelling agent or a precursor to a gelling agent and microspheres; the microspheres containing a dye represented by Formula (I): wherein: R1 and R2 independently reprresent substituted or unsubstituted alkyl, aryl, carbocyclic ring, heterocyclic ring, or amino; and R3 represents H, alkylamino, dialkylamino, hydroxy, or alkoxy.

Abstract: An element for the attachment of protein arrays, the element comprising a surface to which are attached a plurality of piperazine functional groups wherein the piperazine functional groups are represented by Formula I: where R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, are hydrogen, alkyl, alkenyl, alkynyl, alkylhalo, cycloalkyl, cycloalkenyl, alkylthio, alkoxy, with the proviso that at least one of R1 to R10 be a non-labile chemical unit that attaches the piperazine functional group to the surface of the element.

Abstract: A coating composition for making a protein microarray, the composition comprising a gelling agent or a precursor to a gelling agent and microspheres; the microspheres containing a dye represented by Formula (I): wherein: R1 is one or more substituents selected from the group consisting of H, Cl, Br, I, substituted or unsubstituted alkyl, alkylamino, arylamino, acyl, nitrile, alkoxy, aryl, heteroaryl, sulfone, sulfamoyl, sulfonamido, or substituted or unsubstituted amido; and R2 and R3 are independently H, substituted amino, alkoxy, substituted or unsubstituted alkyl, substituted amido, or Cl.

Abstract: A coating composition for making a protein microarray, the composition comprising a gelling agent or a precursor to a gelling agent, and microspheres; the microspheres containing a dye represented by the Formula (1): wherein: R1=one or more substitutent selected from the group of H, chloro, alkoxycarbonyl, arylsulfamoyl, or alkylsulfamoyl; R2=one or more substituent selected from the group of H, carboxamido, or alkoxycarbonyl; R3=one or more substituent selected from the group of H, chloro, substituted or unsubstituted alkyl, aryl, carboxamido, or alkoxycarbonyl.

Abstract: The present invention relates to a biological microarray element comprising a support having disposed thereon at least one layer comprising filler and gelatin, and at least one functional compound, wherein the functional compound comprises a first functional group capable of interacting with gelatin and a second functional group capable of interacting with a biological capture agent, wherein the first functional group is the same as or different from the second functional group. Also provided is a method of making a biological microarray element comprising providing a support; and coating a layer comprising filler and gelatin and at least one functional compound, wherein the functional compound comprises a first functional group capable of interacting with the gelatin and a second functional group capable of interacting with a biological capture agent, wherein the first functional group is the same as or different from the second functional group.

Abstract: The present invention relates to a microarray comprising a support having attached to a surface thereof at least one porous layer, wherein the porous layer comprises a hydrophilic binder and polymer particles. The present invention also relates to a method of using a microarray comprising providing a microarray comprising a support having attached to a surface thereof at least one porous layer, wherein the porous layer comprises a hydrophilic binder and polymer particles; contacting the microarray with biological targets labeled with optical emission tag; and measuring the signals from the optical emission tag.

Abstract: The present invention relates to a polymer particles comprising a polymer bead stabilized by vinylsulfonyl-functionalized polymers grafted to the surface of the bead, as well as a particle composition comprising monodisperse polymer beads stabilized by vinylsulfonyl-functionalized polymers, wherein the vinylsulfonyl-functionalized polymers are grafted to the surfaces of the beads. The invention also includes a method of preparing monodisperse polymer particles comprising preparing a homogeneous solution of an ethylenically unsaturated polymerizable monomer, an initiator, and a polymeric stabilizer, wherein the polymeric stabilizer consists of repetitive units, wherein the repetitive units comprise latent vinylsulfonyl moiety, polymerizing the homogeneous solution, and converting the latent vinylsulfonyl moiety to vinylsulfonyl moieties.