Abstract: This invention provides a kit for making an adhesive and/or a sealant which includes: a first composition of alginate and a multivalent cation salt at a concentration ratio (mg/ml) of 30:1 to 1:60, and a second composition of alginate and a buffer, wherein the buffer has a pH value of between 2 to 7. The invention also provides a method for making a sealant or an adhesive, by contacting the first composition and the second composition.

Abstract: This invention provides a kit for making an adhesive and/or a sealant which includes: a first composition of alginate and a multivalent cation salt at a concentration ratio (mg/ml) of 30:1 to 1:60, and a second composition of alginate and a buffer, wherein the buffer has a pH value of between 2 to 7. The invention also provides a method for making a sealant or an adhesive, by contacting the first composition and the second composition.

Abstract: This invention provides a kit for making an adhesive and/or a sealant which includes: a first composition of alginate and a multivalent cation salt at a concentration ratio (mg/ml) of 30:1 to 1:60, and a second composition of alginate and a buffer, wherein the buffer has a pH value of between 2 to 7. The invention also provides a method for making a sealant or an adhesive, by contacting the first composition and the second composition.

Abstract: Apparatus is provided for use with a tubular structure (2) in a body of a patient. The apparatus includes an adhesive including first and second components, a container (27), one or more patches (3), and an applicator (1). The container (27) contains the first component of the adhesive and not the second component of the adhesive. The one or more patches (3) include the second component of the adhesive and not the first component of the adhesive. The applicator (1) is configured to removably hold the one or more patches (3), and to place the one or more patches (3) at least partially around the tubular structure (2). Other embodiments are also described.

Abstract: Apparatus (30) for drug administration is provided, including an ingestible capsule (32), which includes a drug (36), stored by the capsule (32), and an environmentally-sensitive mechanism (18), adapted to change a state thereof responsively to a disposition of the capsule (32) within a gastrointestinal (GI) tract (50) of a subject. The capsule (32) further includes first and second electrodes (16), and a control component (14), adapted to facilitate passage of the drug (36), in response to a change of state of the environmentally-sensitive mechanism (18), through an epithelial layer of the GI tract (50) by driving the first and second electrodes (16) to apply a series of pulses at a current of less than about 10 mA, at a frequency of between about 12 Hz and about 24 Hz, and with a pulse duration of between about 0.5 milliseconds and about 3 milliseconds. Other embodiments are also described.

Abstract: Apparatus is provided including an ingestible device, which includes two or more electrodes, and a signal controller, configured to drive the electrodes to apply an electrical signal to an inner surface of a wall of a gastrointestinal (GI) tract of a subject, and to configure the signal to induce local endogenous release of nitric oxide (NO). Other embodiments are also described.

Abstract: Apparatus for drug administration is provided, including an ingestible capsule, which includes a drug, stored by the capsule, and an environmentally-sensitive mechanism, adapted to change a state thereof responsively to a disposition of the capsule within a gastrointestinal (GI) tract of a subject. The capsule further includes first and second electrodes, and a control component, adapted to facilitate passage of the drug, in response to a change of state of the environmentally-sensitive mechanism, through an epithelial layer of the GI tract by driving the first and second electrodes to apply a series of pulses at a current of less than about 5 mA, at a frequency of between about 12 Hz and about 24 Hz, and with a pulse duration of between about 0.5 milliseconds and about 3 milliseconds.