Abstract: Methods for in vitro transcription and translation using a double-stranded concatemeric DNA in a eukaryotic cell-free expression system are provided. The method includes the steps of (a) contacting a double-stranded concatemeric DNA with a eukaryotic cell-free expression system, and (b) expressing a protein in vitro from the double-stranded concatemeric DNA in the eukaryotic cell-free expression system. The double-stranded concatemeric DNA includes a plurality of tandem repeat sequences. The plurality of tandem repeat sequences includes an expression sequence including a promoter, a cap-independent translation element (CITE), and an open reading frame. A final concentration of the double-stranded concatemeric DNA in the eukaryotic cell-free expression system is in a range from about 0.1 ng/?L to about 35 ng/?L. A RCA product DNA may be used as the double stranded concatemer DNA for the methods.

Abstract: An electrospinning approach is disclosed for generating a dissolvable formulation of a reagent of interest in a nanoscale fiber medium. In one embodiment, the nanoscale fibers can incorporate and stabilize biological agents of interest, such as for storage at room temperature for extended periods. In one implementation, the fibers can be produced in a continuous manner and dissolve rapidly.

Abstract: A method includes providing a biological sample, providing a sample collection device, wherein the sample collection device includes a sample binding surface including a photodegradable polymer configured to bind the biological sample, contacting the biological sample with the sample binding surface of the sample collection device, and irradiating the sample binding surface and the bound biological sample using light emitted from a light source to initiate degradation of the photodegradable polymer of the sample binding surface to cause release of the biological sample.

Abstract: A method of eluting biomolecules, such as nucleic acids from a biological sample by electroelution is provided. An example of a method includes various steps, such as loading the biological sample to a device comprising a housing, at least two conductive redox polymer electrodes operationally coupled to the housing and a biomolecule impermeable layer disposed on at least one of the electrodes. The loading of sample is followed by initiating an electrical connection to generate an electric field strength sufficient to elute biomolecules from the biological sample; and eluting the biomolecules from the biological sample.

Abstract: A system includes a bacteria culture array that includes a plurality of chambers each configured to receive a portion of a sample that includes bacteria. Each individual chamber of the plurality of chambers includes a chamber opening configured to permit access of the portion of the sample to the individual chamber. The system also includes one or more sensors configured to collect data from the individual chamber. The sensors are configured to contact the sample. Additionally, the system includes a monitoring and analysis system that includes a processor configured to receive the data from the one or more sensors at a first time and a second time, compare the data received at the second time to the data received at the first time, and identify a portion of the plurality of chambers of the bacteria culture array based on the comparing.

Abstract: The invention generally relates to methods and kits for capturing sperm nucleic acids from or in a biological sample. In one embodiment the method the method comprises, contacting the sample with a lysis solution, having a protamine-DNA complex, to lyse the cell and applying a protamine-specific binding element. This results in the protamine-specific binding element binding to the protamine-DNA to form a complex which may be captured, purified, or detected. Also provided are kits for carrying out the disclosed methods.

Abstract: One or more computing devices, systems, and/or methods for constructing a chat video are provided. For example, a user may define a participant definition defining one or more participants for a conversation to playback through the chat video. The user may define a sequence of content items (e.g., images, videos, text, emojis, emoticons, etc.) that are to be displayed through a chat interface for the conversation. A sequence of message elements (e.g., chat bubbles) are constructed based upon the participant definition and/or the sequence of content items. A message element comprises a content item and is assigned to a participant. The sequence of message elements are surfaced through the chat interface to visually present the conversation as a rendering used to construct the chat video.

Abstract: A method of site-specific modification of an endogenous target DNA of a eukaryotic cell is provided. The method includes contacting the endogenous target DNA having an intended modification site with (i) a gene editing system configured to introduce a double strand break in the endogenous target DNA at or near the intended modification site, and (ii) a donor DNA repair template comprising a plurality of tandem repeat sequences. In the method, each of the plurality of tandem repeat sequences comprises an exogenous donor DNA sequence flanked by a donor 5? flanking sequence and a donor 3? flanking sequence. The donor 5? flanking sequence and the donor 3? flanking sequence are homologous to a continuous DNA sequence on either side of the intended modification site in the endogenous target DNA.

Abstract: Provided herein are mutant endonuclease V enzymes that are capable of nicking an inosine-containing DNA sequence. Nucleic acid assays and agents that employ such mutant endonuclease V enzymes to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of a target DNA are also described.

Abstract: The present disclosure generally relates to a method and device for inactivation and dry storage, under ambient conditions, of a biological sample containing RNA virus. Methods for collecting and recovering RNA from a biological sample and subsequent analysis for a virus are also provided.

Abstract: The present disclosure provides an apparatus comprising an air circulating device, an allergen source comprising an allergen, and a housing. The housing can be collapsible, portable, disposable and configurable. The present disclosure also provides a method comprising positioning an allergen source comprising an allergen in a chamber, distributing at least a portion of the allergen from the allergen source within the chamber, and collecting at least a portion of the distributed allergen. In an embodiment, the level of the shed allergen can be used to measure the effectiveness of various measures implemented to reduce airborne Fel d1 that is emitted from soiled cat litter. In another embodiment, the allergen can be introduced at a desired level in the chamber, and the resultant symptoms of a subject (e.g. a human) within the chamber can be identified and correlated with the amount of allergen.

Abstract: Methods for in vitro transcription and translation from an RCA product are provided. The methods comprise providing a double-stranded RCA product, wherein the double-stranded RCA product consists essentially of tandem repeats of a minimalistic expression sequence. The methods further comprise expressing a protein from the double-stranded RCA product in a cell-free expression system.

Abstract: Provided herein are methods for generation and amplification of a single-stranded DNA circle in a single reaction vessel from a linear DNA without any intervening purification steps. The single-stranded DNA circle is generated via a template-independent single-stranded DNA ligation. Whole-genome amplification of linear chromosomal DNA in a single tube using ligation-assisted DNA amplification is also provided.

Abstract: A height-adjustable work surface assembly includes a base portion and a work portion, and may include a gas spring, an actuation mechanism, a rack, and a pinion. The work portion is supported by the base portion for translation along a first path of motion. The gas spring is actuatable between a locked position and an unlocked position, and is operable to apply a force on the work portion in the unlocked position to urge the work portion along the first path of motion. The actuation mechanism is coupled to the gas spring to move the gas spring from the locked to the unlocked position. The rack is supported by the work portion or the base portion and includes a first plurality of teeth. The pinion is supported by the other of the work portion and the base portion and includes a second plurality of teeth.

Abstract: The invention generally relates to methods and kits for capturing sperm nucleic acids from or in a biological sample. In one embodiment the method the method includes, contacting the sample with a lysis solution, having a protamine-DNA complex, to lyse the cell and applying a protamine-specific antibody. This results in the protamine-specific antibody binding to the protamine-DNA to form a complex which may be captured, purified, or detected. Also provided are kits for carrying out the disclosed methods.

Abstract: The multifunctional device has slide and ladder portions easily connectable for use together as a self-supporting unit, and easily detachable for use separately on other equipment or for compact storage or transport. When set-up for use as a self-supporting unit, the ladder and slide portions are hooked together by a double-hook/double-axle connection system that does not allow the angle between the ladder and slide to change any significant amount during normal use of the set-up device. Yet, quick disconnection may be done when the weight of the user is removed, by purposely lifting and pivoting the portions, and then unhooking their top ends from each other. When disconnected from each other, the ladder and/or the slide portion (and preferably both) may be connected/hooked to another object(s), for example, a trampoline or a play equipment platform or other specially-adapted elevated structure, for climbing up to, and sliding down from, said trampoline/platform.

Abstract: The present disclosure generally relates to a method and device for inactivation and dry storage, under ambient conditions, of a biological sample containing RNA virus. Methods for collecting and recovering RNA from a biological sample and subsequent analysis for a virus are also provided.

Abstract: A method of eluting biomolecules, such as nucleic acids from a biological sample by electroelution is provided. An example of a method includes various steps, such as loading the biological sample to a device comprising a housing, at least two conductive redox polymer electrodes operationally coupled to the housing and a biomolecule impermeable layer disposed on at least one of the electrodes. The loading of sample is followed by initiating an electrical connection to generate an electric field strength sufficient to elute biomolecules from the biological sample; and eluting the biomolecules from the biological sample.

Abstract: A method of capturing a sperm deoxyribo nucleic acid (DNA) in a sample is disclosed. The method includes a step of contacting a lysis solution to the sample that includes at least a sperm cell or a sperm cell lysate to lyse the sperm cell. The sperm cell or sperm cell lysate includes a protamine-DNA complex. The method further includes applying at least a protamine-specific antibody to the lysed sperm cell, wherein the protamine-specific antibody binds to the protamine-DNA complex of the lysed sperm cell to form an antibody-protamine-DNA complex. The method further includes capturing the antibody-protamine-DNA complex; and isolating and detecting the sperm DNA from the captured antibody-protamine-DNA complex.