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Bacterial infections, the toxicity of engineered nanomaterials, the presence of inorganic pollutants in the environment, and providing safe drinking water are the most threatening problems of the 21st century. To tackle these challenges, we develop a one-pot, solvent free, and rapid synthesis of smart magnetic graphene (SMG) by microwave irradiation of graphene oxide (GO) and ferrocene precursors. The SMG possesses increased adsorption sites with tunable superparamagnetic properties (50 emu/g, 1:7 wt %), facilitating the adsorption and magnetic separation of aqueous Cr(VI), As(V), and Pb(II) with ∼99% removal efficiencies down to the 1 ppb level. The X-ray photoelectron spectroscopy (XPS) analysis of SMG-Cr(VI) reveals the reduction of Cr(VI) to Cr(III), presumably due to the surface phenolic groups and unprotected ferrous ions on the SMG surface. The maximum adsorption capacity of SMG is 4.86, 3.26, and 6.00 mg/g for respectively Cr(VI), As(V), and Pb(II) at an initial concentration of 5.0 ppm. The addition of KNO3 does not affect Cr(VI) adsorption efficiency; whereas Na2SO4 shows a decreasing trend on Cr(VI) adsorption. The SMG exhibits disinfection action (40 μg/L) toward E. coli bacteria with 100% killing efficacy and low toxicity (0.1 ng/nL) toward zebrafish without inducing any abnormalities. The SMG is reusable and successfully works on drinking water sources, suggesting that SMG is a preferred adsorbent for safe drinking water.

Most patients with adult intussusception in our series were men, and most intussusceptions were benign and of enteric origin. The most sensitive diagnostic modality is abdominal CT scan. Operative reduction is recommended for enteric intussusceptions but not for colonic intussusceptions. The prognosis of adult intussusception after surgery is good except for malignant intussusception.

BackgroundPrevious international consensus statements provided general policies for the management of Helicobacter pylori infection. However, there are geographic differences in the prevalence and antimicrobial resistance of H. pylori, and in the availability of medications and endoscopy. Thus, nationwide or regional consensus statements are needed to improve control of H. pylori infection and gastric cancer.Materials and MethodsThis consensus statement for management of H. pylori in Taiwan has three major sections: (1) optimal diagnosis and indications; (2) current treatment strategies; and (3) screening‐to‐treat and surveillance for control of gastric cancer. The literature review emphasized recent data for development of draft statements and determination of levels of evidence. Twenty‐five Taiwan experts conducted a consensus conference, by a modified Delphi process, to modify the draft statements. Consensus, defined as an agreement of least 80% of the experts, and recommendation grade were determined by anonymous voting.ResultsThere were 24 consensus statements. Section 1 has seven statements on recommendations for the diagnosis and indications for treatment of H. pylori infection. Section 2 has 10 statements that provide an updated treatment algorithm for first‐line, second‐line, and third‐line regimens. Section 3 has seven statements regarding H. pylori eradication for reducing the risk of gastric cancer, with a cost‐benefit analysis. After H. pylori eradication, the consensus highlights the use of endoscopic surveillance and/or chemoprevention to further reduce the burden of gastric cancer.ConclusionsThis consensus statement has updated recommendations for improving the clinical management of H. pylori infection in areas such as Taiwan, which have high prevalence of H. pylori infection and gastric cancer.