Dennis Kwong Chun Lo

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Pre-B-cell leukemia homeobox interacting protein 1 or human PBX1 interacting protein (PBXIP1/HPIP) is a co-repressor of pre-B-cell leukemia homeobox 1 (PBX1) and is also known to regulate estrogen receptor functions by associating with the microtubule network. Despite its initial discovery in the context of hematopoietic cells, little is yet known about the(More)
The location, nature, and size distribution of uranium-rich grains in sediment layers can be identified by sunbursts of etched particle tracks if each sample is pressed against a track detector, next irradiated with thermal neutrons, and the detectors then chemically etched to reveal fission tracks. The total track abundance from the sample is a measure of(More)
1Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, Hong Kong, China; 2Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong, China; 3Department of Obstetrics and Gynaecology and 4Haemophilia Centre and Thrombosis Unit, Royal Free Hospital, London, United Kingdom; and 5Department of(More)
We have studied the luminescence and spectroscopic properties of erythrosin B-doped sol-gel silica in aqueous solutions. Stern-Volmer plot was obtained for the phosphorescence intensity as a function of the dissolved oxygen content. Leaching of the dye molecules from the sol-gel matrix was examined by absorption spectroscopy. That acid-catalysed sol-gel(More)
Dye-doped solgel silica lasers with distributed feedback were demonstrated. Solgel silica slabs doped with Rhodamine 6G or Coumarin 460 dyes were fabricated. Periodic gain modulation in dye-doped solgel silica slabs were created by the interference pattern of the pumped laser beams diffracted by a holographic grating. Laser pulse trains with subnanosecond(More)
Room temperature phosphorescence emission of erythrosin B in sol±gel silica is studied over the oxygen pressure range from 10ÿ6 to 1000 mbar. Quenching by oxygen is signi®cant over the entire range. The Stern±Volmer (SV) intensity data can be very well ®tted using the two-site model. The temperature dependence of the phosphorescence and the delayed (More)
Dennis Lo, also called Yuk Ming Dennis Lo, is a professor at the Chinese University of Hong Kong [5] in Hong Kong, China. In 1997, Lo discovered fetal DNA in maternal plasma, which is the liquid component of a pregnant woman's blood. By 2002, Lo distinguished the DNA differences between pregnant women and their fetuses, enabling scientists to identify fetal(More)
Simultaneous tuning of multiple-output wavelengths was achieved in Rhodamine 6G-doped distributed-feedback zirconia waveguide lasers. As many as four separate output wavelengths were observed for a planar zirconia waveguide of 2.2-microm thickness. The laser output wavelengths corresponded to the propagation modes allowed in the planar waveguide. Continuous(More)
We have obtained thermoluminescence glow curves nondestructively from large, solid, ceramic samples by laser spot heating. Although the samples are brittle, laser thermoluminescence glow curves could be obtained with no visible damage to the samples. The experimental glow curves match with theory. By contrast, conventional thermoluminescence measurements(More)