A chemiluminescent projectile having multi-spectral output, including daytime viewable, nighttime viewable and thermal outputs. The chemiluminescent projectile has a payload that permits the visualization of the fired projectile using a variety of detecting methods including human vision, night vision equipment/infrared devices, and thermal detecting devices during day and night conditions. The chemiluminescent projectile comprises a body having reagents that produce both chemiluminescent and exothermic reactions that generate light and heat sufficient to act as a visual and thermal marker.

An article that includes a fluorescent composition having at least one of a fluorescent sensor compound and organic reporter molecules encapsulated in a microsphere structure. When encapsulated, the fluorescent sensor compound and the organic reporter molecules are distributed in a liquid organic matrix. When non-encapsulated, the remaining one of the fluorescent sensor compound and the organic reporter molecules reside in the matrix. In response to a force applied to the composition sufficient to break at least a portion of the microsphere structure, the fluorescent sensor compound and the organic reporter molecules are transformed into a non-reversible fluorescent state exhibiting a quantum yield greater than 0.2. The fluorescent state is objectively visually verifiable without physically contacting the composition.

An article that includes a fluorescent composition having at least one of a fluorescent sensor compound and organic reporter molecules encapsulated in a microsphere structure. When encapsulated, the fluorescent sensor compound and the organic reporter molecules are distributed in a liquid organic matrix. When non-encapsulated, the remaining one of the fluorescent sensor compound and the organic reporter molecules reside in the matrix. In response to a force applied to the composition sufficient to break at least a portion of the microsphere structure, the fluorescent sensor compound and the organic reporter molecules are transformed into a non-reversible fluorescent state exhibiting a quantum yield greater than 0.2. The fluorescent state is objectively visually verifiable without physically contacting the composition.

The disclosure features methods of analyzing a fluid extracted from a reservoir, the methods including introducing a first composition featuring a first complexing agent into a reservoir at a first location, extracting a fluid from the reservoir at a second location different from the first location, combining the fluid with a second composition featuring a concentration of a lanthanide ion to form a third composition featuring a concentration of a complex formed by the first complexing agent and the lanthanide ion, exposing a quantity of the complex to electromagnetic radiation for a first time period ending at a time to, detecting fluorescence emission from the quantity of the complex for a second time period starting at a time t.sub.1>t.sub.0, where t.sub.1−t.sub.0 is greater than 2 microseconds, and determining information about a fluid flow path between the first location and the second location.

The disclosure features methods of analyzing a fluid extracted from a reservoir, the methods including introducing a first composition featuring a first complexing agent into a reservoir at a first location, extracting a fluid from the reservoir at a second location different from the first location, combining the fluid with a second composition featuring a concentration of a lanthanide ion to form a third composition featuring a concentration of a complex formed by the first complexing agent and the lanthanide ion, exposing a quantity of the complex to electromagnetic radiation for a first time period ending at a time to, detecting fluorescence emission from the quantity of the complex for a second time period starting at a time t.sub.1>t.sub.0, where t.sub.1−t.sub.0 is greater than 2 microseconds, and determining information about a fluid flow path between the first location and the second location.

The present invention relates to europium-, cerium-, samarium- or praseodymium-doped boronitrides, to a process for the preparation of these compounds, and to the use of the doped boronitrides according to the invention as conversion phosphors. The present invention furthermore relates to a light source which contains a doped boronitride according to the invention.

The present invention relates to europium-, cerium-, samarium- or praseodymium-doped boronitrides, to a process for the preparation of these compounds, and to the use of the doped boronitrides according to the invention as conversion phosphors. The present invention furthermore relates to a light source which contains a doped boronitride according to the invention.

Ligands with fused spirocyclic substitutions and metal complexes formed with such ligands and having improved performance in OLED applications are disclosed.

The present subject matter relates to water-soluble, fluorescent compounds that have aggregation-induced emission (AIE) characteristics and exhibit near infrared (NIR) absorption. The compounds can be utilized as plasma-membrane specific bio-probes in cell imaging through a wash-free and fast staining procedure. In addition, the compounds can efficiently generate reactive oxygen species (ROS) in vivo when irradiated with visible light. As such, the compounds can be effective in killing cancer cells through image-guided, photodynamic therapy (PDT) processes.

The present subject matter relates to water-soluble, fluorescent compounds that have aggregation-induced emission (AIE) characteristics and exhibit near infrared (NIR) absorption. The compounds can be utilized as plasma-membrane specific bio-probes in cell imaging through a wash-free and fast staining procedure. In addition, the compounds can efficiently generate reactive oxygen species (ROS) in vivo when irradiated with visible light. As such, the compounds can be effective in killing cancer cells through image-guided, photodynamic therapy (PDT) processes.