摘要:
The present invention relates to altering the physical and/or chemical properties of at least part of at least one tissue in the eye. In a specific embodiment, it relates to the treatment and/or prevention of myopia. An activating energy source is utilized to photopolymerize or crosslink molecules in the sclera, thereby increasing the strength of the tissue. The individual is administered a crosslinking reagent or photopolymerizable molecule that becomes associated with the membrane, which is then precisely exposed to an energy source, such as light or ultrasound.
摘要:
A method of treating an ocular surface disorder in a subject in need of such treatment is provided. The method includes exposing conjunctival tissue of the subject to an effective amount of a vasopermeability agent that increases conjunctival vascular permeability. In some embodiments, the agent is a nitric oxide donor, which may be in a sustained release form. A method of screening a substance for treating an ocular surface disorder is also provided.
摘要:
The disclosure concerns altering the mechanical and/or chemical property of a body tissue, particularly an ocular tissue. In specific cases, it concerns altering or stabilizing the shape of the cornea, such as in a subject suffering or at risk for ectasia or keratoconus. In other specific cases, it concerns strengthening the sclera in a subject suffering or at risk for myopia. The invention employs light irradiation of a photoactivatable compound, such as one that applies crosslinking to the tissue, for example.
摘要:
A system having a vertically-aligned negative delta E nematic liquid crystal host material and a small amount of liquid crystal polymer is provided. The liquid crystal polymer improves the switching speed of a vertically aligned nematic system without sacrificing contrast or viewing angle.
摘要:
A system having a ferroelectric liquid host material and a small amount of polymer additive is provided. In an embodiment, the polymer additive improves the physical characteristics of the system. In an embodiment, the system can be used in FLC applications.
摘要:
Biological reactions are carried out with a unitary structure, preferably formed of a ceramic material, having a plurality of flow passages including first and second sets of flow passages arranged so that individual passages of the first set are adjacent individual passages of the second set and are separated by walls formed of the ceramic material. The ceramic material is porous to provide mass transfer of gaseous oxygen and biological reaction products while containing liquid in the second set of passages. Walls of the passages may be covered with a gaseous oxygen permeable membrane. Inside walls of the second set of passages may coated with a compound adapted to immobilize biological reaction materials. In a biological reaction, the first set of passages are contacted with a fluid such as an air stream to provide gaseous oxygen, and a fluid flow such as a nutrient medium is established through the second set of flow passages whereby an oxygen flow producing gradient is produced through the porous ceramic material between the first and second sets of flow passages to supply oxygen for cells immobilized on inside walls of the second set of flow passages.
摘要:
A process for the preparation of functional molecules using the thiol-ene coupling reaction and a process for the preparation of protected functional thiols, specifically thioesters is provided. The methods may be used to make functional polymers and other molecules. The method of making a functionalized polymer using a thiol-ene reaction comprises: providing a functionalized thioester having the following formula: wherein R is a functional group and COR′ is a protecting group; cleaving the functionalized thioester, forming a functional thiol and an acyl group; providing a polymer having a pendant vinyl group; and reacting the polymer with the functional thiol whereby a functionalized polymer is formed, wherein the functional thiol is not isolated prior to reacting with the polymer.
摘要:
A polarization-modulation scanning laser microscope includes a conventional laser scanning microscope, which has been improved by addition of: a polarization state generator; a polarization state analyzer; a photo-detector for receiving laser light transmitted though a sample; a signal demodulator providing two signals in response to the transmitted laser light, one of the signals being indicative of polarization orientation, and the other signal being indicative of magnitude of the transmitted polarized light. A relay interface toggles between the two signals provided by the signal demodulator and at least one other signal provided either by the photodiode of the laser scanning microscope, or by an external optical beam induced current, or both. A signal processing unit provides an image output to a display device.
摘要:
A process for the preparation of functional molecules using the thiol-ene coupling reaction and a process for the preparation of protected functional thiols, specifically thioesters is provided. The methods may be used to make functional polymers and other molecules. The method of making a functionalized polymer using a thiol-ene reaction comprises: providing a functionalized thioester having the following formula: wherein R is a functional group and COR′ is a protecting group; cleaving the functionalized thioester, forming a functional thiol and an acyl group; providing a polymer having a pendant vinyl group; and reacting the polymer with the functional thiol whereby a functionalized polymer is formed, wherein the functional thiol is not isolated prior to reacting with the polymer.
摘要:
The disclosure concerns altering the mechanical and/or chemical property of a body tissue, particularly an ocular tissue. In specific cases, it concerns altering or stabilizing the shape of the cornea, such as in a subject suffering or at risk for ectasia or keratoconus. In other specific cases, it concerns strengthening the sclera in a subject suffering or at risk for myopia. The invention employs light irradiation of a photoactivatable compound, such as one that applies crosslinking to the tissue, for example.