摘要:
A system and method for light stimulation within a medium. The system has a reduced-voltage x-ray source configured to generate x-rays from a peak applied cathode voltage at or below 105 kVp, and a plurality of energy-emitting particles in the medium which, upon radiation from the x-ray source, radiate at a first lower energy than the x-ray source to interact with at least one photoactivatable agent in the medium. The method introduces the plurality of energy-emitting particles into the medium, radiates the energy-emitting particles in the medium with x-rays generated from a peak applied cathode voltage at or below 105 kVp; and emits a lower energy than the x-ray source to interact with the medium or with at least one photoactivatable agent in the medium.
摘要:
Provided are ethyne synthons comprising boron and related methods. Also provided are related water-soluble arylethynylene polymers capable of being synthesized in neat water under aerobic conditions.
摘要:
Novel multichromophoric complexes comprising the formula R1—RA-[MC]-([RM]z-[MC])m-RA—R2 are provided. Polymeric compositions and devices comprising the same are also discussed. The complexes are characterized by a central bridging moiety comprising one or a plurality of linked conjugated macrocyclic molecules [MC] coupled to at least one inorganic moiety (R1 and/or R2) through organic linker RA. Preparation methods include metal-mediated cross-coupling techniques. The complexes can be useful in nonlinear optical devices and other optoelectronic applications.
摘要翻译:包含式<?in-line-formula description =“In-line Formulas”end =“lead”的新型多重离子配合物复合物R 1 R 1 -R A - [MC ] - ([R M] Z - ] - [MC]) - -line-formula description =“内联公式”end =“tail”?>。 还讨论了聚合物组合物和包含它们的装置。 络合物的特征在于包含一个或多个与至少一个无机部分(R 1'和/或R 2')偶联的连接的共轭大环分子[MC]的中心桥连部分 >)通过有机接头R A A。 制备方法包括金属介导的交叉偶联技术。 该复合物可用于非线性光学器件和其他光电子应用。
摘要:
Porphyrins substituted with, for example, vinyl and acetylene groups are provided, along with polymers containing the same. In preferred embodiments, the substituted porphyrins are prepared by coupling halogenated porphyrins with anionic groups via metal-mediated cross-coupling reactions under stoichiometric or catalytic conditions.
摘要:
Methods and systems for producing a change in a medium. A first method and system (1) place in a vicinity of the medium at least one upconverter including a gas for plasma ignition, with the upconverter being configured, upon exposure to initiation energy, to generate light for emission into the medium, and (2) apply the initiation energy from an energy source including the first wavelength λ1 to the medium, wherein the emitted light directly or indirectly produces the change in the medium. A second method and system (1) place in a vicinity of the medium an agent receptive to microwave radiation or radiofrequency radiation, and (2) apply as an initiation energy the microwave radiation or radiofrequency radiation by which the agent directly or indirectly generates emitted light in the infrared, visible, or ultraviolet range to produce at least one of physical and biological changes in the medium.
摘要:
The invention concerns compounds, oligomers, and polymers that contain: (I), (II), (III), or (IV) groups; where “-” indicates points of attachment.
摘要:
Electron-deficient porphyrins are provided, as well as processes and intermediates for their preparation. In preferred embodiments, the electron-deficient porphyrins are prepared by condensing pyrrole derivatives and removing water thus formed from the resulting reaction mixture.
摘要:
Electron-deficient porphyrins are provided, as well as processes and intermediates for their preparation. In preferred embodiments, the electron-deficient porphyrins are prepared by condensing pyrrole derivatives and removing water thus formed from the resulting reaction mixture.
摘要:
Porphyrins substituted with, for example, vinyl and acetylene groups are provided, along with polymers containing the same. In preferred embodiments, the substituted porphyrins are prepared by coupling halogenated porphyrins with carbon-centered anionic groups via metal-mediated crosscoupling reactions under stoichiometric or catalytic conditions.