City University of Hong Kong

Cityu Research Limited

Chinese Academy of Sciences

Chun-Sing Lee

Shuit-Tong Lee

Peng-Fei Wang

Igor Bello

Zhi-Qiang Gao

Shengliang Li

Zhi-Yuan Xie

Fu-Lung Wong

Bao-Xiu Mi

Na Li

Weimin Liu

Liang-sun Hung

Pengfei Wang

Xiaohong Zhang

Baoxiu Mi

Liang-Sun Hung

Ning Wang

Qichun Zhang

Zhongming Huang

Boon-Keng Teo

Yafang Xiao

Wencheng Chen

Shiu-Lun Lai

Xin Jiang

Mei-Yee Chan

Naigui Shang

Jinfeng Zhang

Quan Li

Yingpeng Wan

Ning-Bew Wong

Frederick Chi Kan Au

Xing Tai Zhou

Carol Hau Ling Lai

Chi-Pui Li

Shuit-tong Lee

Xu-Hui Sun

Fangyuan Kang

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

A polynitroso compound including a monocyclic core or a polycyclic core attached with two or more of terminal nitroso groups thereon, such as Formula (A) to Formula (D), in particular, Formula (VII). A method for preparing the polynitroso compound of the present invention. An energy storage device with a cathode including the polynitroso compound of the present invention. Also an electrode material for an energy storage device including a polynitroso compound having a monocyclic core with at least one terminal nitroso group, such as Formula (A) to Formula (D), in particular, Formula (VII).

Polynitroso compound, its preparation and electrochemical use

The present invention provides nanoparticles and a method of preparing the nanoparticles by using an ice template. Pharmaceutical formulations including such nanoparticles and their use are also described. The method allows for an environmentally friendly provision of advantageously small particles with higher production rate and improved reproducibility.

Nanoparticles, method of preparing the same and their use

There are disclosed rare-earth metal containing electron-injecting electrodes which are particularly effective for use with organic LED devices used in electroluminescent structures and which may in particular be formed as transparent electrodes for use in transparent or surface emitting OLEDs.

Organic electroluminescent devices formed with rare-earth metal containing cathode

Disclosed herein are several organic compounds having electron-transporting and/or hole-blocking performance and their preparation method and use and the OLEDs comprising the organic compound. The organic compounds exhibit high ionization potential (IP), electron affinity (Ea), glass transition temperature (Tg) and high electron mobility, and are a kind of good electron-transporting material with good hole-blocking ability. The devices comprising these compounds as one of the emitting layer, electron-transporting layer (ETL) and hole-blocking layer (HBL) show improved efficiency and better color purity.

Organic compound having electron-transporting and/or hole-blocking performance and its use and OLEDs comprising the compound

A compound of formula [I]:X&#x2014;R[I]wherein X represents the group: and R is either (i) represented by the formula [II] wherein n is 1 or 2, and the or each Rgroup is independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups;or (ii) is selected from the group consisting of optionally substituted alkyl, hydroxyalkyl, aryl, cyclic hydrocarbon and heterocyclic groups;wherein in each case R&#x2013;Rare each independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups. The compounds are useful as hole-transporting materials in electroluminescence devices.

Electroluminescent devices

A simple chemical technique has been developed to grow large quantity of carbon nanostructures, including carbon nanotubes, hydrocarbon nanotubes and carbon nanoonions, in the organic solution at ambient (room) temperature and atmospheric pressure using silicon nanostructures (nanowires, nanodots, ribbons, and porous silicon) as starting materials. These CNT and CNO have the lattice d-spacing from 3.4 &#x212b; to 5 &#x212b;.

Room temperature synthesis of multiwalled carbon nanostructures

Compounds of formula [I]wherein each Rto Ris independently selected from the group consisting of halogen atoms, cyano, isocyano, mercapto, amino, carbonyl, carboxy, sulfone, nitro and hydroxy groups, and optionally substituted alkyl, alkenyl, alkynyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylarylamino, amide, alkylthio, arylthio, alkoxy carbonyl, siloxy, cyclic hydrocarbon or heterocyclic groups; each x is independently zero, one, two or three; each y is independently zero or one; and each z is independently zero, one, two or three are useful in organic electroluminescence devices. Such compounds are disclosed herein, as well as organic electroluminescence devices using the compounds in the emissive layer.

Red-emitting organic electroluminescent elements

An organic light-emitting diode is described in which the anode comprises midfrequency magnetron sputtered aluminum-doped zinc oxide to increase the device stability and to decrease the material cost. Due the novel deposition technique, ZnO:Al film with ITO-like electrical conductivity can be deposited and improved device performance, especially the long-term stability can be obtained which are attributed to the modification of the ZnO:Al conductivity and surface chemistry.

High-qualty aluminum-doped zinc oxide layer as transparent conductive electrode for organic light-emitting devices

An organic electroluminescence device which includes an anode, a cathode, a hole transport layer, an electron transport layer, and at least one organic luminescent medium doped with a pyrazolo[3,4b]quinoxaline derivative is disclosed. The present device provides improved efficiency, and the emission band associated therewith is surprisingly narrow. The improved green emitting organic electroluminescence device exhibits high color purity.

Organic electroluminescence devices using pyrazolo[3,4b]quinoxaline derivatives

Organic electroluminescence devices are described, each of which comprises an anode, a cathode, a luminescent layer, at least one hole-transporting layer disposed between the anode and the luminescent layer, at least one electron-transporting layer disposed between the cathode and the luminescent layer, and a substrate present on either the anode or cathode. The luminescent layer in the devices uses as red-emitting materials, salicylaldiminato Schiff bases or their metal complexes based on diaminomaleonitrile and salicylaldehyde derivatives. These organic electroluminescence devices exhibit excellent color chromaticity co-ordinates and good efficiency.

A method and an apparatus have been developed to fabricate large area uniform silicon cone arrays using different kinds of ion-beam sputtering methods. The apparatus includes silicon substrate as the silicon source, and metal foils are used as catalyst. Methods of surface modification of the as-synthesized silicon cones for field emission application have also been developed, including hydrofluoric acid etching, annealing and low work-function metal coating. Nano-structure modification based on silicon cones takes advantage of the fact that the cone tip consists of metal/metal siliside, which can be used as catalyst and template for nanowires growth. A method and an apparatus have been developed to grow silicon oxide/silicon nanowires on tips of the silicon cones.

Large area silicon cone arrays fabrication and cone based nanostructure modification

Organic electroluminescent elements

A method and an apparatus have been developed to grow beta-silicon carbide nanorods, and prepare patterned field-emitters using different kinds of chemical vapor deposition methods. The apparatus includes graphite powder as the carbon source, and silicon powder as silicon sources. Metal powders (Fe, Cr and/or Ni) are used as catalyst. Hydrogen was the only feeding gas to the system.

Growing community of inventors

Hong Kong, China

Chun-Sing Lee