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Gram-negative bacteria use the Type VI secretion system (T6SS) to inject toxic proteins into rival bacteria or eukaryotic cells. However, the mechanism of the T6SS is incompletely understood. In the present study, we investigated a conserved component of the T6SS, TssK, using the antibacter ... more
Lipid-conjugated peptides have advanced the understanding of membrane protein functions and the roles of lipids in the membrane milieu. These lipopeptides modulate various biological systems such as viral fusion. A single function has been suggested for the lipid, binding to the membrane an ... more
Laser-induced breakdown spectrometry (LIBS) is a promising analytical technique with well-known advantages and limitations. However, despite its growing popularity, this technique has been applied mainly to solid samples and there have been a smaller number of studies devoted to liquid samp ... more
Mesoporous silica nanoparticles (MSNs) were co-doped with Gd3+ and Al3+ and then loaded with Ru(bpy)32+ by ion-exchange to prepare Ru/Gd-Al@MSNs. The as-prepared Ru/Gd-Al@MSNs were applied as contrast agents for in vivo fluorescence and magnetic resonance (MR) dual-modality imaging with the ... more
Cyano-bridged copper(II)-copper(I), mixed valence polymer, namely {[Cu4(CN)5(C5H5N)4]}n (1), was synthesized and characterized by elemental analysis, IR, thermogravimetric analysis, differential scanning calorimetric analysis, and single crystal X-ray crystallography. Single crystal X-ray s ... more
Laser-induced breakdown spectrometry (LIBS) is a promising analytical technique with well-known advantages and limitations. However, despite its growing popularity, this technique has been applied mainly to solid samples and there have been a smaller number of studies devoted to liquid samp ... more
Mesoporous silica nanoparticles (MSNs) were co-doped with Gd3+ and Al3+ and then loaded with Ru(bpy)32+ by ion-exchange to prepare Ru/Gd-Al@MSNs. The as-prepared Ru/Gd-Al@MSNs were applied as contrast agents for in vivo fluorescence and magnetic resonance (MR) dual-modality imaging with the ... more
This work deals with the use of laser-induced breakdown spectroscopy (LIBS) for determining the surface density of titanium in ultrathin layers, particularly in ultrathin layers on a steel sheet. The results obtained by LIBS spectroscopy were compared with those obtained by wavelength dispe ... more
Acoustophoresis is a method well suited for cell and microbead separation or concentration for downstream analysis in microfluidic settings. One of the main limitations that acoustophoresis share with other microfluidic techniques is that the separation efficiency is poor for particle-rich ... more
Individual droplets can be isolated within microfluidic systems by use of an immiscible carrier layer. This type of two phase systems, often termed “digital microfluidics”, find wide ranging applications in chemical synthesis and analysis. To conduct on-chip biochemical analysis, a key step ... more
Gram-negative bacteria use the Type VI secretion system (T6SS) to inject toxic proteins into rival bacteria or eukaryotic cells. However, the mechanism of the T6SS is incompletely understood. In the present study, we investigated a conserved component of the T6SS, TssK, using the antibacter ... more
Lipid-conjugated peptides have advanced the understanding of membrane protein functions and the roles of lipids in the membrane milieu. These lipopeptides modulate various biological systems such as viral fusion. A single function has been suggested for the lipid, binding to the membrane an ... more
Cyano-bridged copper(II)-copper(I), mixed valence polymer, namely {[Cu4(CN)5(C5H5N)4]}n (1), was synthesized and characterized by elemental analysis, IR, thermogravimetric analysis, differential scanning calorimetric analysis, and single crystal X-ray crystallography. Single crystal X-ray s ... more
A novel and facile approach for preparing highly oriented porphyrin metal–organic framework films on various substrates is explored by employing self-directed assembly of silanized porphyrin cobalt monomers (SPCMs). The three-dimensional ordered porphyrin films display excellent photo-elect ... more
New indolocarbazole derivatives emitting strong blue light have been synthesized. It is found that the strong π-π interactions between indolocarbazoles 4-6 without long carbon chains lead to the formation of crystal or crystal-liked aggregates. We have previously found that tert-butyl could ... more
Inside the USCAP Journals Laboratory Investigation 94, 704 (July 2014). doi:10.1038/labinvest.2014.74 more
Inside the USCAP Journals Laboratory Investigation 94, 596 (June 2014). doi:10.1038/labinvest.2014.67 more
Inside the USCAP Journals Laboratory Investigation 94, 476 (May 2014). doi:10.1038/labinvest.2014.56 more
Inside the USCAP Journals Laboratory Investigation 94, 360 (April 2014). doi:10.1038/labinvest.2014.49 more
Inside the USCAP Journals Laboratory Investigation 94, 250 (March 2014). doi:10.1038/labinvest.2014.9 more
Polyaniline nanostructures have been synthesized by self‐assembly method by varying the dopant to monomer molar ratio. High resolution transmission electron micrographs show how the dopant to monomer molar ratio influences on the morphology and structure. The temperature dependence of dc co ... more
Poly(l‐lactide‐co‐glycolide) (PLGA) microspheres with diverse internal structures and different release behaviors were prepared via a modified double‐emulsion method by introduction of heparin or carboxymethyl chitosan in the inner aqueous phase and calcium chloride in the outer aqueous pha ... more
Exfoliated graphite (EG) was synthesized from natural flake graphite by acid treatment followed by microwave irradiation. A maximum expanded volume of 560 mL/g was achieved for this exfoliation of graphite. EG/phenolic resin composite bipolar plates for polymer electrolyte membrane fuel cel ... more
Sulfonated polysulfone (SPSF) flat ultrafiltration membranes were successfully prepared by immersion precipitation phase inversion method. N‐Methyl pyrrolidone was used as a solvent, and polyvinylpyrrolidone (PVP) was used as a polymeric additive in the casting solution. The effects of cast ... more
In order to improve the viscoelasticity and foamability, poly (butylene succinate) (PBS) was modified through reactive melt mixing with chain extender (CE) having multi epoxy‐groups. Subsequently, the prepared chain extended PBS (CEPBS) was foamed in a high pressure stainless steel autoclav ... more
Environ. Sci.: Processes Impacts, 2014, Accepted ManuscriptDOI: 10.1039/C4EM00077C, Paper Yuanzhi Tang, Samuel M Webb, Emily Estes, Colleen M HanselThis is an Accepted Manuscript, which has been through the RSC Publishing peer review process and has been accepted for publication. Accepted ... more
The immobilization of U(VI) at solid/water interface is an important process related to its transportation and migration in environment, which is dominantly controlled by its sorption behavior of U(VI). In this study, U(VI) sorption on Fe(II) and Fe(III) oxy-hydroxides prepared using co-pre ... more
Date palm trunk (DPT) was grafted with diethylenetriamine (DETA) followed by triethylamine amine (TEA) using epichlorohydrin as a crosslinking agent. The potential of modified date palm trunk (MDPT) for the effective removal of Cr(VI) from aqueous solution has been investigated. The equilib ... more
Environmental Science & Technology DOI: 10.1021/es5024509 more
Many cases of severe environmental contamination arise from historical episodes, where recalcitrant contaminants have resided in the environment for a prolonged time, leading to potentially decreased bioavailability. Use of bioavailable concentrations over bulk chemical levels improves risk ... more
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