Abstract: A fixture for mounting on a support structure having an outer surface and an inner surface defining a thickness, with a bore therethrough, comprising: a tubular body, having a top section and a bottom externally threaded section; a retaining sleeve with flange, having a lower portion, the bottom surface thereof larger than the bore; a drop down ring; a keeper body, having an internally threaded circular passageway, including a ring shaped upper part having an outside surface and an outside diameter slightly smaller than the diameter of the bore, and a lower part having a smaller diameter than said upper part, the retaining sleeve with flange, drop down ring, and keeper body sized for placing onto the tubular body; and pivotable, rotatable ears having an upper edge and a lower end providing a stop, mounted to the upper part of the keeper body.

Abstract: A fixture for mounting on a support structure having an outer surface and an inner surface defining a thickness, with a bore therethrough, comprising: a tubular body, having a top section and a bottom externally threaded section; a retaining sleeve with flange, having a lower portion, the bottom surface thereof larger than the bore; a drop down ring; a keeper body, having an internally threaded circular passageway, including a ring shaped upper part having an outside surface and an outside diameter slightly smaller than the diameter of the bore, and a lower part having a smaller diameter than said upper part, the retaining sleeve with flange, drop down ring, and keeper body sized for placing onto the tubular body; and pivotable, rotatable ears having an upper edge and a lower end providing a stop, mounted to the upper part of the keeper body.

Abstract: A fixture for mounting on a support structure having an outer surface and an inner surface defining a thickness, with a bore therethrough, comprising: a tubular body, having a top section and a bottom externally threaded section; a retaining collar, having an upper portion, the bottom surface thereof larger than the bore, and a circular internally threaded lower portion smaller than the bore; a keeper body, having an internally threaded circular passageway, including a ring shaped upper part having an outside surface and an outside diameter slightly smaller than the diameter of the bore, and a lower part having a smaller diameter than said upper part, the retaining collar and keeper body sized for threading onto the tubular body; and pivotable, rotatable ears having an upper edge and a lower end providing a stop, mounted to the upper part of the keeper body.

Abstract: A fixture for mounting on a support structure having an outer surface and an inner surface defining a thickness, with a bore therethrough, comprising: a tubular body, having a top section and a bottom externally threaded section; a retaining collar, having an upper portion, the bottom surface thereof larger than the bore, and a circular internally threaded lower portion smaller than the bore; a keeper body, having an internally threaded circular passageway, including a ring shaped upper part having an outside surface and an outside diameter slightly smaller than the diameter of the bore, and a lower part having a smaller diameter than said upper part, the retaining collar and keeper body sized for threading onto the tubular body; and pivotable, rotatable ears having an upper edge and a lower end providing a stop, mounted to the upper part of the keeper body.

Abstract: An adjustment apparatus for a sneeze guard includes a support post having a mounting bar with two parallel ridges along the rear side. First and second support frames are slidably interconnected and secured to the ridges on the mounting bar in parallel relation, the outer side of first support frame facing the outer side of the second support frame. The first support plate is pivotally connected and adjustably secured in a plurality of rotational positions to the inner side of the first support frame. The first support plate includes a holder on the inner side attached to one end of a transparent pane of a sneeze guard. The second support plate is pivotally connected and adjustably secured in a plurality of rotational positions to the inner side of the second support frame. The second support plate includes a holder on the inner side attached to one end of an opposing transparent pane of a sneeze guard.

Abstract: An adjustment apparatus for a sneeze guard includes a support post having a mounting bar with two parallel ridges along the rear side. First and second support frames are slidably interconnected and secured to the ridges on the mounting bar in parallel relation, the outer side of first support frame facing the outer side of the second support frame. The first support plate is pivotally connected and adjustably secured in a plurality of rotational positions to the inner side of the first support frame. The first support plate includes a holder on the inner side attached to one end of a transparent pane of a sneeze guard. The second support plate is pivotally connected and adjustably secured in a plurality of rotational positions to the inner side of the second support frame. The second support plate includes a holder on the inner side attached to one end of an opposing transparent pane of a sneeze guard.

Abstract: Methods for detecting a biological interaction comprising administering a substrate comprising a ligand attached to the substrate wherein the ligand binds to a receptor and wherein a signal is produced. Also disclosed is a biosensor comprising a substrate and a ligand wherein the ligand is attached to the surface of the substrate and wherein the ligand preferentially binds to a receptor.

Abstract: An adjustably positionable sneeze guard includes a transparent panel having an upper surface and a lower surface, and at least two continuously flexible legs having a proximal end and a distal end. Preferably, the distal end of each support leg is attached to the lower surface of the transparent panel by means of a thumb screw, and the proximal end of each support leg is secured to a stationary base by means of a c-shaped clamp mechanism. The transparent panel is adjustably positioned on the stationary base in front of and above food, beverage or other items, to provide a barrier which protects said items from contaminants expelled from the mouth or nose of a person on the opposite side of the transparent panel. The adjustable positioning makes the sneeze guard suitable for self service, attended service, and temporary buffet service lines.

Abstract: A method is provided for electrochemically depositing a polymer with spatial selectivity. A substrate having a substrate surface is contacted with an aqueous solution containing a selectively insolubilizable polysaccharide, such as chitosan, which is subjected to electrochemically treatment to deposit, with spatial selectivity, the selectively insolubilizable polysaccharide on a patterned electrically conductive portion of the substrate surface.