City University of Hong Kong

Shengliang Li

Chun-Sing Lee

Chun-sing Lee

Wencheng Chen

Yingpeng Wan

Ming-Fai Lo

Zhongming Huang

Qi Zhao

Yafang Xiao

A compound including a general formula of D-L-A particularly with the structure of Formula (A). A nanoparticle of the compound of the present invention. A pharmaceutical composition including the compound of the present invention as an active ingredient and a pharmaceutically acceptable carrier. A method of treating a target tissue including administering to a patient in need thereof a compound of the present invention and administering to the target tissue radiation in an amount and of a wavelength effective to activate the compound. Also use of the compound of the present invention in preparation of a medicament for treating the target tissue by photodynamic therapy.

Photo-activatable compound, its preparation and therapeutic use

A composite material for floating on a contaminated water source, including: A) a polymeric structure having a network of interconnected porous channels; and B) a carbonous material dispersed within the polymeric structure, the carbonous material has a functionalized surface. The composite material has a density of less than 1 g/cm, and the contaminated water source contains a low-boiling-point contaminant. The polymeric structure draws contaminated water from the contaminated water source into the polymeric structure via capillary action, and the functionalized surface removes the low-boiling point contaminant from the contaminated water. A method of purifying water using the composite material as mentioned herein and a kit for harvesting purified water including the composite material as mentioned herein.

Composite material and a water purifying system

The present invention provides a solar absorber incorporated bilayer foam solar evaporator for seawater and wastewater purification including a plurality of solar absorbers partially incorporated into a porous polymer framework and partially forming a thermal insulation layer proximal to solar irradiation. In particular, low-cost commercially available BC powders are embedded into a porous polymer foam in a one-pot method to form a scaffold of boron carbide bilayer foam (BCBF) with good hydrophilic wettability, heat-shielding, and solar-thermal conversion. The boron carbide bilayer foam (BCBF) of the present invention enables a high cost-performance seawater desalination and wastewater purification at a high evaporation rate of 2.8 kg/m/h with 93% solar evaporation efficiency under 1 sun illumination (or 1 kW/m). The present invention thereby provides an excellent and cost-effective solar evaporator tool for industrial-level water purification. Following the present method to prepare the BCBF solar evaporator, the fabrication cost can be as low as 3.6 $/m.

Boron carbide bilayer foam solar evaporator and method for preparing thereof

Growing community of inventors

Hong Kong, China

Shengliang Li