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The key for graphene applications is the successful transfer of graphene from a growth metal substrate to a substrate for application without compromising its high quality. However, state-of-the-art polymethyl methacrylate (PMMA) assisted transfer methods introduce wrinkles, folds and cracks, which are exacerbated for porous substrates. Here we report a novel in situ technique to transfer graphene onto a porous substrate which resolves these issues. Using phase-inversion a porous substrate is grown onto a graphene film with strong adhesion that perfectly matches graphene's topography, and the growth metal substrate is subsequently etched away. We achieve 63 cm2 high-quality single-layered graphene with almost 100% coverage over the pores of the substrate and pore ratios up to 35%. Our study resolves the three main challenges of transferring graphene to porous substrates, which are matching the topographies between the graphene and the porous substrate, achieving high pore ratios and minimizing the stresses on the suspended graphene; this approach may therefore serve as a general guide for attaching graphene or other 2D materials to scaffold structures.
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High-quality graphene film grown on dielectric substrates by direct chemical vapor deposition (CVD) method promotes the application of high-performance graphene-based devices in large scale. However, ...
In this paper, we found that the growth of graphene on Cu oxide foil is significantly affected by the concentration of oxygen. The grain size of graphene grown on Cu substrate with relative high oxyge...
To achieve the excellent electrochemical performance of lithium-ion batteries (LIBs), the design and optimization of the anode is a highly concerned issue. Herein, the fabrication of N-doped porous gr...
The enhanced growth of Cu oxides underneath graphene grown on a Cu substrate has been of great interest by many groups. In this work, the strain and doping status of graphene, based on the gradual gro...
Transition-metal sulfides have been considered as promising anode materials for lithium-ion batteries (LIBs) due to their high theoretical specific capacity and superior electrochemical performance. H...
The purpose of this research is to collect data on patients that had the Legion Porous HA Tibial Baseplates and/or the Legion Porous HA Femoral component implanted in the past. Smith & Nep...
The aim of the present study was to determine whether oral dosing, up to 9 grams/day, of porous silica administered as a food additive can be used safely in normal weight and obese male hu...
The purpose of this study is to further characterize the treatment related changes in insulin sensitivity, substrate metabolism and intrahepatic-intramyocellular lipids in patients with gr...
RATIONALE: Lapatinib may stop the growth of ductal carcinoma in situ cells by blocking some of the enzymes needed for cell growth. PURPOSE: This randomized phase I/II trial is studying th...
The aim of this study is to assess whether preventive substrate ablation of chronic total occlusion infarct-related artery (CTO-IRA) area in heart failure (HF) patients correlates with low...
A condition in which abnormal cells have not spread outside the duct, lobule, or nipple to other tissues of the breast. There are 3 types of breast carcinoma in situ: DUCTAL CARCINOMA IN SITU; LOBULAR CARCINOMA IN SITU; and PAGET DISEASE OF THE NIPPLE
A chromogenic substrate that permits direct measurement of peptide hydrolase activity, e.g., papain and trypsin, by colorimetry. The substrate liberates p-nitroaniline as a chromogenic product.
Norms, criteria, standards, and other direct qualitative and quantitative measures used in determining the quality of health care.
A technique that labels specific sequences in whole chromosomes by in situ DNA chain elongation or PCR (polymerase chain reaction).
A method of producing a high-quality scan by digitizing and subtracting the images produced by high- and low-energy x-rays.
Standard antiretroviral therapy (ART) consists of the combination of at least three antiretroviral (ARV) drugs to maximally suppress the HIV virus and stop the progression of HIV disease. Huge reductions have been seen in rates of death and suffering whe...