Abstract: A nucleic acid sequencing system may include non-planar substrates coupled to the outer surface of a rotating drum. The substrates may be curved and include a plurality of nucleic acid samples. A detection system, including for example an objective and a camera, may detect sequencing events on the non-planar substrate while the non-planar substrate is rotated relative to the detection system around a longitudinal axis of the drum by the actuation system.

Abstract: Provided are a method for loading a nucleic acid molecule, for example nucleic acid nanoball (e.g., DNA nanoball (DNB)), on a solid support, and a kit for the method.

Abstract: A nucleic acid sequencing system may include a substrate coupled to a rotating disk. The substrate may include a plurality of nucleic acid samples. A detection system, including for example an objective and a camera, may detect sequencing events on the substrate while the substrate is rotated relative to the detection system around a rotational axis of the substrate, perpendicular to a surface of the substrate, by the actuation system.

Abstract: Embodiments of the disclosure include methods and systems for nucleic acid sequencing that may include an objective coupled to an actuator, wherein the actuator is configured to move the objective over a surface of a substrate. In some embodiments, a droplet may be disposed on the surface of the substrate, and the droplet may be moved along with the objective. The distal end of the objective may include a material that provides a higher friction against the droplet than a material of the surface of the substrate. In some embodiments, the distal end of the objective may be immersed in a fluid as it is moved over the surface of the substrate. The substrate may include vertical walls within a region to retain the fluid.

Abstract: A gene chip includes a chip carrier, a plurality of DNA nanoballs assembled on the chip carrier, and a polymer film formed on the chip carrier and wrapping the DNA nanoballs. The polymer film includes at least one of a film of a positively charged polymer, a film of a positively charged polymer which is modified, a film of a zwitterionic polymer, and a composite polymer film. The composite polymer film is formed by a layer-by-layer self-assembly process of a positively charged polymer and a negatively charged polymer. The gene chip has good sequencing quality and different functions can be achieved by coating with different polymers, such as the chip surface rapidly drying out and surface non-specific adsorption. A method of preparing a gene chip is further disclosed.

Abstract: Methods of preparing organosilane-functionalized regions on a substrate surface and more specifically fabricating patterned functionalized substrates suitable to be optically read, the methods generally comprising employing a vapor deposition process of an organosilane gas onto a lithographically patterned silicon surface followed by removal of the patterning media in a bath of organic solvents and ultrasonic excitation. The inventive methods provide optimized surface density of functional species while avoiding deleterious effects that can occur when lithographically patterned substrates are exposed to various gaseous species during the functionalization process.

Abstract: Methods of preparing organosilane-functionalized regions on a substrate surface and more specifically fabricating patterned functionalized substrates suitable to be optically read, the methods generally comprising employing a vapor deposition process of an organosilane gas onto a lithographically patterned silicon surface followed by removal of the patterning media in a bath of organic solvents and ultrasonic excitation. The inventive methods provide optimized surface density of functional species while avoiding deleterious effects that can occur when lithographically patterned substrates are exposed to various gaseous species during the functionalization process.