Abstract: A method for joining nanotubes end-to-end, includes contacting the nanotubes with a joining fluid. The joining fluid has at least one property that is different from at least one property associated with ends of the nanotubes. In one embodiment, the method further includes contacting the nanotubes with a first, treating fluid and removing the bulk first fluid before the nanotubes are contacted with the joining fluid. The joining fluid is immiscible in the treating fluid to effect end-to-end joining of the nanotubes.

Abstract: A method of separating compounds, includes: a. tagging at least a first organic compound with a first tagging moiety to result in a first tagged compound; b. tagging at least a second organic compound with a second tagging moiety different from the first tagging moiety to result in a second tagged compound, the first tagging moiety and the second tagging moiety including at least one of a common repeat unit, but having a different number of the repeat units therein, the greater the number of repeat units, the greater the polarity of the tagging moiety; and c. separating the first tagged compound from a mixture including at least the second tagged compound using a chromatographic separation technique based upon differences in the number of repeat units between the first tagging moiety and the second tagging moiety.

Abstract: A device for removal of at least a portion of carbon dioxide from an aqueous fluid includes at least one membrane through which carbon dioxide can pass to be removed from the fluid and immobilized carbonic anhydrase on or in the vicinity of a first surface of the membrane to be contacted with the fluid such that the immobilized carbonic anhydrase comes into contact with the fluid. The first surface exhibits carbonic anhydrase activity of at least 20% of maximum theoretical activity of the first surface of the membrane based on monolayer surface coverage of carbonic anhydrase in the case that the carbonic anhydrase is immobilize on the first surface.

Abstract: A docking device for use with a wheeled mobility device having a device interface on a rear thereof includes a securing mechanism to dock with the device interface. The securing mechanism is adapted to dock with the device interface upon rearward motion of the wheeled mobility device relative to the docking device regardless of the horizontal position of the mobility device over a range of horizontal positions of the mobility device. The securing device can also be adapted to dock with the device interface regardless of the angle of the device interface relative to the docking device over a range of angles of the device interface. Further, the securing device can be adapted to dock with the device interface regardless of the vertical position of the device interface relative to the docking device over a range of vertical positions of the device interface.

Abstract: A method of inhibiting topoisomerase I mediated DNA cleavage including administering a pharmaceutically effective amount of a compound having the following formula or a pharmaceutically acceptable salt thereof: wherein R1 and R2 are independently the same or different and are hydrogen, an alkyl group, an aminoalkyl group, an alkylaminoalkyl group, a haloalkyl group, a hydroxyalkyl group, an alkenyl group, an alkynyl group, an alkoxyl group, an aryloxy group, a carbamoyloxy group, a halogen, a hydroxyl group, a nitro group, a cyano group, an azido group, a formyl group, a hydrazino group, —C(O)Rf, an amino group, an alkylamino group, a dialkylamino group, —SRc, or R1 and R2 together form a group of the formula —O(CH2)nO— wherein n represents the integer 1 or 2; R3 is H, F, a halogen atom, a nitro group, an amino group, a hydroxyl group, or a cyano group; or R2 and R3 together form —O(CH2)nO— (n=1 or 2); R4 is H, F, a C1-3 alkyl group, a C2-3 alkenyl group, a C2-3 alkynyl group, or a C1-3 alkoxyl group; R5