Abstract: The present invention provides methods for quantitation of glycated protein in a biological sample using a solid support matrix by making a first bound protein measurement total bound protein under conditions where both glycated and non-glycated protein bind to the support in making a second bound protein measurement under conditions where glycated protein is bound to the support and non-glycated protein is not substantially bound.

Abstract: A liquid applicator for applying a liquid sample to a liquid receiving surface is disclosed. The liquid applicator comprises a bibulous line to hold a first predetermined volume of liquid for application to a liquid receiving surface. A second predetermined volume less than or equal to the first predetermined volume is applied to the liquid receiving surface in a substantially uniform and consistent pattern. Systems and methods for using embodiments of the liquid applicators are also disclosed.

Abstract: A liquid applicator for applying a liquid sample to a liquid receiving surface is disclosed. The liquid applicator comprises a bibulous line to hold a first predetermined volume of liquid for application to a liquid receiving surface. A second predetermined volume less than or equal to the first predetermined volume is applied to the liquid receiving surface in a substantially uniform and consistent pattern. Systems and methods for using embodiments of the liquid applicators are also disclosed.

Abstract: The present invention provides methods for quantitation of glycated protein in a biological sample using a solid support matrix by making a first bound protein measurement total bound protein under conditions where both glycated and non-glycated protein bind to the support in making a second bound protein measurement under conditions where glycated protein is bound to the support and non-glycated protein is not substantially bound.

Abstract: A liquid applicator for applying a liquid sample to a liquid receiving surface is disclosed. The liquid applicator comprises a bibulous line to hold a first predetermined volume of liquid for application to a liquid receiving surface. A second predetermined volume less than or equal to the first predetermined volume is applied to the liquid receiving surface in a substantially uniform and consistent pattern. Systems and methods for using embodiments of the liquid applicators are also disclosed.

Abstract: The present invention provides methods for quantitation of glycated protein in a biological sample using a solid support matrix by making a first bound protein measurement total bound protein under conditions where both glycated and non-glycated protein bind to the support in making a second bound protein measurement under conditions where glycated protein is bound to the support and non-glycated protein is not substantially bound. Diagnostic devices and kits comprising the methods of the present invention are also provided.

Abstract: The present invention provides methods for quantitation of glycated protein in a biological sample using a solid support matrix by making a first bound protein measurement total bound protein under conditions where both glycated and non-glycated protein bind to the support in making a second bound protein measurement under conditions where glycated protein is bound to the support and non-glycated protein is not substantially bound.

Abstract: The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the glycosylated protein, or the glycoprotein. The method incorporates lateral flow test strip or vertical flow test strip devices having negatively charged carboxyl or carboxylate groups and hydroxyboryl groups immobilized and interspersed on a solid support matrix. The solid support matrix may include derivatives of cellulose (e.g., carboxy cellulose) derivatized with carboxylic acid (e.g., carboxylate, carboxyl) groups and hydroxyboryl compounds including phenylboronic acid (e.g., phenylborate), aminophenylboronic acid, boric acid (e.g., borate), or other boronic acid (e.g., boronate) compounds. The present invention is usefi.il for monitoring glycation or glycosylation of hemoglobin or albumin for monitoring glycemic control (e.g., glycemia in diabetes).