Coupled Interface and Oxygen-Defect Engineering in Co₃O₄/CoMoO₄ Heterostructures toward Active Oxidation of Ethylbenzene

The catalytic oxidation of ethylbenzene (EB) is a promising route to produce acetophenone (AcPO). Unfortunately, it remains a great challenge to achieve the highly efficient oxidation of EB under solvent-free conditions using molecular oxygen as the sole oxidant. In this contribution, we present a facile strategy to construct hierarchical oxygen vacancy-rich Co3O4/CoMoO4 heterostructures (Vö-CCMO), which delivers a high yield value of 74.5% at 83.2% conversion of EB and selectivity of 89.6% to AcPO. Both experimental studies and theoretical calculations substantiate the important role of oxygen-defect engineering triggered by the modified chemistry environment at the interfaces between the biphasic phases, which contributes to the good catalytic performance. This work illustrates a promising paradigm for the exploit of advanced catalysts toward boosting EB oxidation reaction in a more practical way

EMPs derived from PMVECs.

<p>(A) Primary culture of PMVECs. Representative immunofluorescence images of PMVECs immunestained with antibody against von Willebrand factor. (B) One 35 mm diameter dish filled with CO₂-independent medium was converted and half of one milliliter nitrogen was injected into the device. (C) The device was put into a shaking table allowing bubbles to contact with the PMVECs.</p

Bubble-induced EMPs release and EMPs abatement strategy.

<p>Values are means ± SD (n = 3). (3A) EMPs from cultural medium 1 h after bubble stimulus. (3B) EMPs combined with FSN-100 and incubated for 0–2 h at room temperature. *P < 0.05.</p

Serum levels of s-TM s-ICAM-1 and s-VCAM-1 were detected to evaluate endothelial injury in vivo.

<p>Values are means ± SD (n = 3). (A) The concentration of s-TM increased about 3 times in EMPs treated group compared with the normal control group. (B) The level of s-VCAM-1 was ng/ml in EMPs treated group and ng/ml in normal control group. (C) The level of s-ICAM-1 was times higher in EMPs treated group than in normal control group. *P < 0.05, # P < 0.05.</p

Flow cytometry was used to quantify EMPs.

<p>(A) Nano Fluorescent Size Standard Kits (NFPPS-52-4K) to calibrate the MPs. (B and C) Representative flow cytometer image of bubble-induced EMPs (Annexin V +).</p

Changes of cell activity after incubating with EMPs for 12 h.

<p>Values are means ± SD (n = 3). (A) Cell viability decreased 14% after EMPs treatment and FSN-100 abatement can attenuate this effect. (B) Cell apoptosis increased after EMPs treatment and FSN-100 abatement can attenuate this effect. *P < 0.05, # P < 0.05.</p

DataSheet1_Optimal design and development of a fast steering robot inspired by scallops.docx

The improvement of the steering performance of jet robots is challenging due to single inflexible jet aperture. Scallops provide a potential solution with hard shells and a double-hole jet propulsion, which are expected to achieve fast steering movement under water. Inspired by scallops, a bionic propulsion dynamic mesh is proposed in this article, and a three-dimensional computational model of scallops is established. We further calculated the scallop propulsion mechanism under the swing of shells with different shapes. The coupling of simultaneous swing of two shells and their coupling with velum are presented, revealing the unique movement mechanism of Bivalvia. Based on this, the advantages of the double-hole jet propulsion are applied to develop a scallop robot with excellent steering capabilities. Experiments are conducted to verify the steering performance of the scallop robot.</p

Video1_Optimal design and development of a fast steering robot inspired by scallops.MP4

The improvement of the steering performance of jet robots is challenging due to single inflexible jet aperture. Scallops provide a potential solution with hard shells and a double-hole jet propulsion, which are expected to achieve fast steering movement under water. Inspired by scallops, a bionic propulsion dynamic mesh is proposed in this article, and a three-dimensional computational model of scallops is established. We further calculated the scallop propulsion mechanism under the swing of shells with different shapes. The coupling of simultaneous swing of two shells and their coupling with velum are presented, revealing the unique movement mechanism of Bivalvia. Based on this, the advantages of the double-hole jet propulsion are applied to develop a scallop robot with excellent steering capabilities. Experiments are conducted to verify the steering performance of the scallop robot.</p

Additional file 1 of Development and validation of a nomogram model for prediction of stroke-associated pneumonia associated with intracerebral hemorrhage

Supplementary Material

Highly Thermally Conductive Papers with Percolative Layered Boron Nitride Nanosheets

In this work, we report a dielectric nanocomposite paper with layered boron nitride (BN) nanosheets wired by one-dimensional (1D) nanofibrillated cellulose (NFC) that has superior thermal and mechanical properties. These nanocomposite papers are fabricated from a filtration of BN and NFC suspensions, in which NFC is used as a stabilizer to stabilize BN nanosheets. In these nanocomposite papers, two-dimensional (2D) nanosheets form a thermally conductive network, while 1D NFC provides mechanical strength. A high thermal conductivity has been achieved along the BN paper surface (up to 145.7 W/m K for 50 wt % of BN), which is an order of magnitude higher than that in randomly distributed BN nanosheet composites and is even comparable to the thermal conductivity of aluminum alloys. Such a high thermal conductivity is mainly attributed to the structural alignment within the BN nanosheet papers; the effects of the interfacial thermal contact resistance are minimized by the fact that the heat transfer is in the direction parallel to the interface between BN nanosheets and that a large contact area occurs between BN nanosheets