Novel Silica Sorbents Surface-Functionalized with a Salicylhydroxamic Acid-Based Ion-Imprinting Polymer for the Selective Removal of Pb(II) from Aqueous Solution

A new Pb­(II)-imprinted silica sorbent IIP-SHA/SiO₂ has been successfully prepared using the surface imprinting technique. The bidentate and rigid salicylhydroxamic acid was used as the chelating ligand, and a nucleophilic ring-opening reaction of glycidyl with phenolic hydroxyl group was employed as the cross-linking chemistry. The resulting ion-imprinted silica shows enhanced adsorption and more importantly remarkable selectivity toward Pb­(II) and excellent reusability in both batch and dynamic adsorption experiments, making it an appealing material for Pb­(II) removal from aqueous medium. The spontaneous adsorption process was found to be entropy driven and endothermic. The positive entropy change associated with the adsorption process is unusually large, indicating that the binding pockets after template ion removal are rather rigid which is believed to be responsible for the enhanced selectivity

The Survey of the Administrators of the Telemedicine Hospital (<i>N</i> = 31).

<p>The Survey of the Administrators of the Telemedicine Hospital (<i>N</i> = 31).</p

The Survey of the Intention of Medical Workers from Primary Medical Institutions (<i>N</i> = 186).

<p>The Survey of the Intention of Medical Workers from Primary Medical Institutions (<i>N</i> = 186).</p

The IT infrastructure of telemedicine consultation canter of Gansu.

<p>ADSL is Asymmetric Digital Subscriber Line and VPN is Virtual Private Network.</p

The Cases Consulted in Several Sudden Public Events.

<p>The Cases Consulted in Several Sudden Public Events.</p

All-Metal Layer-by-Layer Films: Bimetallic Alternate Layers with Accessible Mesopores for Enhanced Electrocatalysis

We have prepared multilayer mesoporous bimetallic (Pt/Pd) alternating films by layer-by-layer (LbL) electrochemical deposition. Because of the high surface area and heterometallic interfacial atomic contacts, enhanced electrocatalytic activity for methanol oxidation reaction is realized. This novel LbL approach allows optimization of the electrocatalytic performance through precise tuning of the thickness of each layer

The Survey of the Satisfaction of Patients Who Had Experienced the Telemedicine Service (<i>N</i> = 360).

<p>The Survey of the Satisfaction of Patients Who Had Experienced the Telemedicine Service (<i>N</i> = 360).</p

The Survey of Physicians’ Satisfaction with the Experience of Telemedicine in Gansu Provincial Hospital (<i>N</i> = 95).

<p>The Survey of Physicians’ Satisfaction with the Experience of Telemedicine in Gansu Provincial Hospital (<i>N</i> = 95).</p

Trimetallic PtPdRu Dendritic Nanocages with Three-Dimensional Electrocatalytic Surfaces

Control over composition and structure on the nanoscale level is critical for designing highly active and durable catalyst to implement in electrochemical energy conversion. Herein, we report a facile strategy for an efficient synthesis of trimetallic PtPdRu dendritic nanocages with hollow cavity and porous dendritic shell by eroding the interior of the starting PtPdRu nanodendrites in acidic solution. The newly discovered trimetallic dendritic nanocages with an open-framework surface afford 3D molecular accessibility and can be used as highly active and durable catalysts for oxygen reduction reaction due to the synergetic effect derived from their unique porous structure and multimetallic composition

Additional file 1 of A loss-of-function variant in ZCWPW1 causes human male infertility with sperm head defect and high DNA fragmentation

Additional file 1. Figure S1. The localization of mutant ZCWPW1 did not alter in vitro. We used anti-Flag antibofy to detected exogenous ZCWPW1 in MUT-ZCWPW1 transfected cells compared to WT-ZCWPW1 transfected cells. Effectively transfected cells were marked with arrowhead. (Scale bars, 10μm). Figure S2. The reduced expression of ZCWPW1 in proband’s sperms. The relative fluorescence intensity analysis normalized by α-Tubulin was shown. Data represent the mean ± SD from three independent experiments. Student’s t-test, **P < 0.01