Abstract: Some aspects provide engineered microbes for oil production. Methods for microbe engineering and for use of engineered microbes are also provided herein. Such engineered microbes exhibit greatly enhanced conversion yields and TAG synthesis and storage properties.

Abstract: A proton beam imaging system includes: a proton beam generator to generate a proton beam; a proton beam modulator through which the proton beam passes positioned between the proton beam generator and an image target; and a proton beam detector positioned to detect the proton beam existing the image target; wherein the proton beam modulator comprises: a rotating wheel having an axis of rotation positioned so that the proton beam passes through the axis of rotation and the axis of rotation is perpendicular to the proton beam; a first modulating portion comprising a first material portion and a second material portion through which a proton beam passes; and a second modulating portion comprising a third material portion and a fourth material portion through with the proton beam passes; wherein the first and second wedges are positioned opposite each other on the rotating wheel.

Abstract: A sensor can include a conductive region in electrical communication with at least two electrodes, the conductive region can include a mixture of a square-planar metal complex and a carbon nanotube.

Abstract: Provided herein are stabilized peptides that bind Mcl-1. Also provided are compositions containing these polypeptides and methods of using such peptides in the treatment of cancer that include administering to a subject one of the polypeptides.

Abstract: System and method for nanoscale X-ray imaging of biological specimen. The imaging system comprises an X-ray source including a plurality of spatially and temporally addressable electron sources, an X-ray detector arranged such that incident X-rays are oriented normal to an incident surface of the X-ray detector and a stage arranged between the X-ray source and the X-ray detector, the stage configured to have mounted thereon a biological specimen through which X-rays generated by the X-ray source pass during operation of the imaging system. The imaging system further comprises at least one controller configured to move the stage during operation of the imaging system and selectively activate a subset of the electron sources during movement of the stage to acquire a set of intensity data by the X-ray detector as the stage moves along a three-dimensional trajectory.

Abstract: Macromolecules comprising triazoles and related compositions and methods are provided. In some embodiments, a macromolecule may comprise one or more repeat units including a triazole and a functionalizable pendant group. The macromolecule may also comprise one or more orthogonally addressable end groups. In some embodiments, one or more repeat units may be formed by a synthetic process that allows for precise control over stereochemistry, pendant functionality, and/or the spatial relationship (e.g., distance) between groups in the repeat unit(s). Such precise control over pendant group and repeat unit structure allows for the macromolecule functionality, stereochemistry, and spacing between groups (e.g., pendant groups) to be precisely controlled. Macromolecules described herein may be used for a wide variety of applications, including the delivery of active agents.

Abstract: A nuclear magnet resonance (NMR) system probes samples using a stochastically pulsed radio-frequency magnetic field. The NMR system uses active shims to compensate for spatial inhomogeneity in the bias magnetic field applied by a small permanent magnet. The active shim, made of a flexible conductor, creates a magnetic field when current is passed through it. The magnetic field created by the active shim can compensate for a first, second or third order spherical harmonic spatial inhomogeneity. The NMR system may have an array of active shims, with each active shim compensating for a spherical harmonic spatial inhomogeneity. The array of active shims may be arranged within the NMR system so as to increase power efficiency. The NMR system can accommodate a standard NMR sample tube and can be used to measure nuclear spin density or acquire an NMR spectrum.

Abstract: Meta-lens based ocular imaging, near-eye display, and eye-tracking systems are described. The systems can include a single focusing optic and an integrated circuit that provides illumination light and includes an imaging array. The focusing optic includes meta-atoms formed on a substrate. The systems may have no moving parts and achieve imaging or image-projection fields-of-view approaching or exceeding 180 degrees. Because of their low part count, the systems can be robust and have a very small form factor.

Abstract: Described herein are methods and compositions that enable rapid generation of high-order combinations of genetic elements comprising a CRISPR guide sequence and a scaffold sequence, and a barcode for rapid identification of the combination of genetic elements encoded within a single cell or a pooled population. Also described herein compositions of inhibitors of epigenetic genes and methods for reducing cell proliferation and/or treating cancer.

Abstract: One aspect of the invention provides a method for harvesting adult cells from an organ. The method includes perfusing the organ with a perfusate and isolating adult cells from the organ, thereby harvesting the adult cells from the organ. Another aspect of the invention provides a method for rehabilitating an organ. The method includes: dividing the organ into a first portion and a second portion, perfusing the first portion with a decellularization medium, isolating adult cells from the second portion, and recellularizing the first portion with a suspension of the adult cells, thereby rehabilitating the organ.

Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. The filters may include at least one active layer disposed on a porous substrate. The at least one active layer may include intrinsic and/or intentional formed pores. In some embodiments, the flow resistance of the porous substrate may be selected to limit flow through defects and intrinsic pores in the at least one active layer.

Abstract: Disclosed are methods for the electrochemical oxidation of a C—H bond in a compound to give a C—O bond or C—S bond. The oxidation of methane to methanol is described, as well as an electrochemical cell for performing the reaction.

Abstract: The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.

Abstract: The present invention relates to compositions which may comprise a non-naturally occurring or engineered artificial transcription factor, wherein the transcription factor may comprise a sequence specific DNA binding domain, a sliding domain, and one or more linkers, wherein the DNA binding domain and the sliding domain are operably connected by the one or more linkers, and uses thereof. Methods involving the use of a non-naturally occurring or engineered artificial transcription factors and pharmaceutical compositions, methods for treating cancer, a degenerative disease, a genetic disease or an infectious disease as well as diagnostic methods are also contemplated by the present invention.

Abstract: Articles and systems for dark microscopy and related methods are generally described.

Abstract: An automated craniotomy opening apparatus includes a drilling apparatus with a drilling tip, at least one drilling apparatus positioning device, a detection device, and a computer processor that automatically controls the drilling apparatus, the positioning device, and the detection device. A method for automated opening of craniotomies includes, under automatice control of a computer processor, drilling into a skull for a predetermined distance and determining when there is a conductance drop near the drilling tip that indicates skull breakthrough. If the conductance is not below a predetermined threshold, drilling continues iteratively manner until conductance is below the threshold. A craniotomy pattern may be predetermined and automatically drilled under control of the processor. A cranial window may be created by drilling along a path that interpolates between holes to form the circumference of the window. Determining conductance may include use of an impedance detection circuit.

Abstract: The present disclosure is related to porous media with adjustable fluid permeabilities and related systems and methods. In certain cases, the fluid permeability of a porous medium can be adjusted by applying an electrical potential to the porous medium. In some such cases, the application of the electrical potential to the porous medium results in the deposition of material over or the removal of material from the porous medium. Also disclosed herein are systems and methods for capturing species (e.g., acid gases) in which porous media with adjustable fluid permeabilities are used, for example, to control the flow of fluid into and out of a medium used to capture the species.

Abstract: A system and method for supplying a gas to an electrochemical system is described.

Abstract: A device for collecting contaminants from water samples is provided. The device includes a solid sorbent that collects and stores the contaminants from water samples. The solid sorbent is configured to allow for the preservation of the stored contaminants. The concentrations of the contaminants in the water samples are determined via analysis of the solid sorbent or via elution of the stored contaminants from the sorbent and analysis of the eluate solution.

Abstract: The present disclosure, at least in part, relates to an engineered incoherent feed forward loop (iFFL) comprising a first transcription unit encoding an endoribonuclease and a second transcription unit encoding an output molecule and an endoribonuclease target site located in the 5? UTR of the output molecule coding sequence. The engineered iFFL, at least in part, can be used for sustained expression of an output molecule despite of transcription resource disturbance in a given environment.