Abstract: A method for printing materials by: providing a receiving substrate; providing a target substrate having a photon-transparent support, a photon absorbent interlayer coated on the support, and a transfer material of a solid-phase environmental sample coated on top of the interlayer opposite to the support; and directing photon energy through the transparent support so that the photon energy strikes the interlayer is described. The environmental sample includes living organisms. A portion of the interlayer is energized by absorption of the photon energy, and the energized interlayer causes a transfer of a portion of the environmental sample including the microorganisms across a gap between the target substrate and the receiving substrate and onto the receiving substrate.

Abstract: A method using a receiving substrate and a target substrate having a photon-transparent support, a photon absorbent interlayer coated on the support, and a tissue-implantable particle on top of the interlayer opposite to the support. A source of photon energy is directed through the transparent support so that the photon energy strikes the interlayer. A portion of the interlayer is energized by absorption of the photon energy. The energized interlayer causes a transfer of the particle across a gap between the target substrate and the receiving substrate and embedding of the particle into the receiving substrate.

Abstract: Disclosed is an apparatus having: a pressure chamber and a gas-producing microorganism within the chamber. The pressure chamber is capable of maintaining a gas pressure of at least 0.5 psi above atmospheric pressure.

Abstract: A method using a receiving substrate and a target substrate having a photon-transparent support, a photon absorbent interlayer coated on the support, and a tissue-implantable particle on top of the interlayer opposite to the support. A source of photon energy is directed through the transparent support so that the photon energy strikes the interlayer. A portion of the interlayer is energized by absorption of the photon energy. The energized interlayer causes a transfer of the particle across a gap between the target substrate and the receiving substrate and embedding of the particle into the receiving substrate.

Abstract: Disclosed herein is a structure having: a porous polymeric film permeated by a first extracellular matrix material; and a topcoat layer comprising a second extracellular matrix gel disposed on the film. Also disclosed herein is a method of: providing a porous polymeric film; permeating the film with a first extracellular matrix material; and applying a topcoat layer of a second extracellular matrix material to the film. Also disclosed herein is a method of: laser-machining holes through a film comprising collagen to form a web-like structure.

Abstract: A biocompatible membranes made by electrospinning a polymer, having living cells on both surfaces of the membrane, and/or is free of a non-biodegradable structural component. The membranes may be attached to a frame and span a hole in the frame. A method of: providing a biocompatible membrane made by electrospinning a polymer and depositing living cells both surfaces of the membrane and/or attaching the membrane to a frame and spanning a hole in the frame. Different types of cells are deposited on each surface of the membrane.

Abstract: An apparatus having: an enclosure having a base and a top and a plate. The base and the top each have an interior surface which together define the interior of the enclosure. The base and the top each have an inlet fluid channel and an outlet fluid channel from the interior of the enclosure to the exterior of the enclosure. The plate is in the interior of the enclosure and has a frame having an opening, a gasket, and a biopaper spanning the opening. The plate divides the interior of the enclosure into two cavities. A portion of the biopaper is not touching the frame, the gasket, or the interior surfaces. The biopaper is fluid communication with the fluid channels.

Abstract: A device having: a chamber having a gas inlet, a gas vent, and a liquid vent; and a float and a weight coupled to the chamber. The float has a lower density than the chamber. The weight has a higher density than the chamber. The aggregate density of the chamber, the float, and the weight is greater than the density of the chamber. The gas inlet, the gas vent, the liquid vent, the float, and the weight are positioned on the chamber such that: when the chamber is filled with and submerged in a liquid in which the chamber is neutrally-buoyant, the chamber is oriented to place the gas vent below the gas inlet; and when a gas is introduced through the gas inlet into the chamber that is filled with the liquid, the chamber pivots to raise the gas vent until a portion of the gas escapes from the chamber through only the gas vent.

Abstract: A method for printing materials by: providing a receiving substrate; providing a target substrate having a photon-transparent support, a photon absorbent interlayer coated on the support, and a transfer material of a solid-phase microbiome sample coated on top of the interlayer opposite to the support; and directing photon energy through the transparent support so that the photon energy strikes the interlayer. A portion of the interlayer is energized by absorption of the photon energy, and the energized interlayer causes a transfer of a portion of the transfer material across a gap between the target substrate and the receiving substrate and onto the receiving substrate.

Abstract: Disclosed is an apparatus having: a pressure chamber and a gas-producing microorganism within the chamber. The pressure chamber is capable of maintaining a gas pressure of at least 0.5 psi above atmospheric pressure.

Abstract: Disclosed is an apparatus having: a pressure chamber and a gas-producing microorganism within the chamber. The pressure chamber is capable of maintaining a gas pressure of at least 0.5 psi above atmospheric pressure.

Abstract: Disclosed herein is a structure having: a porous polymeric film permeated by a first extracellular matrix material; and a topcoat layer comprising a second extracellular matrix gel disposed on the film. Also disclosed herein is a method of: providing a porous polymeric film; permeating the film with a first extracellular matrix material; and applying a topcoat layer of a second extracellular matrix material to the film. Also disclosed herein is a method of: laser-machining holes through a film comprising collagen to form a web-like structure.

Abstract: Disclosed herein is a structure having: a porous polymeric film permeated by a first extracellular matrix material; and a topcoat layer comprising a second extracellular matrix gel disposed on the film. Also disclosed herein is a method of: providing a porous polymeric film; permeating the film with a first extracellular matrix material; and applying a topcoat layer of a second extracellular matrix material to the film. Also disclosed herein is a method of: laser-machining holes through a film comprising collagen to form a web-like structure.

Abstract: Disclosed herein is a structure having: a porous polymeric film permeated by a first extracellular matrix material; and a topcoat layer comprising a second extracellular matrix gel disposed on the film. Also disclosed herein is a method of: providing a porous polymeric film; permeating the film with a first extracellular matrix material; and applying a topcoat layer of a second extracellular matrix material to the film. Also disclosed herein is a method of: laser-machining holes through a film comprising collagen to form a web-like structure.

Abstract: Disclosed is an apparatus having: a pressure chamber and a gas-producing microorganism within the chamber. The pressure chamber is capable of maintaining a gas pressure of at least 0.5 psi above atmospheric pressure.

Abstract: A method of laser forward transfer is disclosed. Photon energy is directed through a photon-transparent support and absorbed by a polymer interlayer coated thereon. The energized interlayer causes the transfer of a biological material coated thereon across a gap and onto a receiving substrate.

Abstract: A device having: a chamber having a gas inlet, a gas vent, and a liquid vent; and a float and a weight coupled to the chamber. The float has a lower density than the chamber. The weight has a higher density than the chamber. The aggregate density of the chamber, the float, and the weight is greater than the density of the chamber. The gas inlet, the gas vent, the liquid vent, the float, and the weight are positioned on the chamber such that: when the chamber is filled with and submerged in a liquid in which the chamber is neutrally-buoyant, the chamber is oriented to place the gas vent below the gas inlet; and when a gas is introduced through the gas inlet into the chamber that is filled with the liquid, the chamber pivots to raise the gas vent until a portion of the gas escapes from the chamber through only the gas vent.

Abstract: A circuit for seamlessly printing data from a remote source that is arriving at a clock rate that is equal to the clock rate of the local data, but that has a different clock phase, due to the longer path used by the remote data. The circuit generates a number of local clock phases, compares these phases to the phase of the remote clock, and uses for both local and remote data the clock whose phase is nearest that of the remote clock.

Abstract: A pulsed imaging, facet tracked, Raster Output Scanner utilizes pulse width modulation in conjunction with spatial filtering to form three exposure levels at the surface of a charged photoreceptor medium, one of the levels associated with a specific color. This type of scanner with a nominal video rendering experiences a color line growth in the process direction. The line growth problem is caused by a coherent optical effect. The resultant output print has bolded color lines in the process direction. Several techniques are set forth to compensate for this line growth. In a preferred technique, the video data stream is modified by locating or positioning video pulses representing white information at the start of an associated pixel time period. When the color pixel is imaged, it will therefore, always abut an adjoining white pulse and will be inhibited from spreading into the adjacent pixel period.

Abstract: A pulsed imaging Raster Output Scanner utilizes pulse width modulation in conjunction with spatial filtering to form three exposure levels at the surface of a recording medium, one of the levels associated with a specific color.