Trung Dung Tran

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Fluorescence excitation spectra of highly anisotropic emission from Photosystem I (PS I) were measured at 295 and 77 K on a PS II-less mutant of the cyanobacterium Synechocystis sp. PCC 6803 (S. 6803). When PS I was excited with light at wavelengths greater than 715 nm, fluorescence observed at 745 nm was highly polarized with anisotropies of 0.32 and 0.20(More)
The effects that granulocyte-monocyte colony-stimulating factor (GM-CSF) has on HIV-1 replication in monocyte-derived macrophage are controversial. We noted that groups reporting that GM-CSF inhibits HIV-1 replication performed their experiments at relatively high cell densities. To address this issue, we performed experiments at different macrophage(More)
Fluorescence spectra from Photosystem I (PS I) are measured from 25 to −5 °C on a PS II-less mutant of the cyanobacterium Synechocystis sp. PCC 6803. Emission from antenna chlorophylls (Chls) with energy levels below that of the reaction center, or low-energy Chls (LE Chls), is resolved verifying their presence at physiological temperatures. The 25°C(More)
Noncoding 7SK snRNA is believed to play an important role in the recruitment of P-TEFb by viral protein Tat to stimulate HIV processive transcription. Because HIV-2 TAR RNA and 7SK both evolved to feature a dinucleotide bulge region, compared to the trinucleotide bulge for HIV-1 TAR, ultrafast time-resolved fluorescence spectroscopy has been used to probe(More)
Coaxial carbon/metal oxide/aligned carbon nanotube (ACNT) arrays over stainless-steel foil are reported as high-performance binder-free anodes for lithium ion batteries. The coaxial arrays were prepared by growth of ACNTs over stainless-steel foil followed by coating with metal oxide and carbon. The carbon/manganese oxide/ACNT arrays can deliver an initial(More)
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