Rapid and sensitive smartphone non-enzymatic colorimetric assay for the detection of glucose in food based on peroxidase-like activity of Fe3O4@Au nanoparticles.

A low-cost and reliable analytical method based on the combination of a newly designed Fe3O4@Au as peroxidase mimetics, supported on smartphone analysis software package was proposed for the determination of glucose content in food samples. The nanocomposite was prepared by self-assembling technique, and the characterization was carried out using transmission electron microscopy (TEM), Fourier transforms infrared, and X-ray diffractometer. Record the color change of the solution with a smartphone camera and optimize the operation parameters and reaction conditions. A smartphone with a free self-developed app was accustomed live the RGB (red-greenblue) values of color intensity within the Fe3O4@Au system and were processed with Image J software before computationally convert them glucose concentrations. At the optimization experiment, reaction temperature of 60 °C, reaction time of 50 min and the amount of addition of Fe3O4@Au 0.0125 g was the optimal combination of detecting glucose smartphone color detection system. Hereon, the accuracy of the proposed method was evaluated by comparison between smartphone colorimetry and UV-vis spectrophotometer, a linear calibration in the range of 0.25 âˆ¼ 15 mmol/L glucose was obtained with minimum detection limit of 1.83 and 2.25 µmol/L, respectively. The proposed method was applied effectively to the detection of glucose in actual samples. The results were in accordance with the conventional UV-vis spectrophotometer method.

The experience in reoperation of Behcet's disease patient with perivalvular leakage after aortic valve replacement / 中华胸心血管外科杂志

Objective:To introduce the application of sleeve reconstruction with bovine pericardium in the reoperation of Behcet's disease with advanced aortic annulus invasion, and to report our experience and the early outcomes.Methods:From August 2012 to May 2022, 19 patients with Behcet's disease developed perivalvular leakage after previous surgery underwent aortic root replacement. They were analyzed retrospectively. Fifteen out of 19 cases underwent conventional aortic root replacement, 4 cases with advanced aortic annulus invasion underwent sleeve reconstruction with bovine pericardium. The medical records were reviewed. Demographic and perioperative data were collected, which included the aortic crossclamp time, intraoperative RBC consumption, length of ICU stay, and major postoperative complications.Postoperative follow-up was accomplished through telephone visit.Results:The median age was 39(36, 42) years old. Five were female. The median interval of diagnosis of perivalvular leak from index surgery was 5(3, 14)months. There was no perioperative death. Fifteen patients underwent conventional aortic root replacement. One patient had intraoperative ECMO impant due to low cardiac output as well as another one had IABP support. CABG was performed in 5 patients. One patient underwent permanent pacemaker implantation after surgery. The median follow-up time for the 15 patients was 55.00(29.25, 71.25)months. Two patients were lost during follow-up. One patient died of infection 3 years after surgery. One patient developed perivalvular leak. Two patient developed distal anastomotic pseudoaneurysm which need reintervention. The median follow-up time for the 4 patients with sleeve reconstruction was 5.5(5, 11.25)months. One patient underwent tracheotomy. Perivalvular leakage and pseudoaneurysm were not appreciated. Four patients were in NYHA class Ⅰ-Ⅱ.Conclusion:The sleeve reconstruction with bovine pericardium is safe and effective in reoperation treating patients with Behcet's disease and advanced aortic annulus invasion.

A smartphone-integrated dual-mode nanosensor based on Fe3O4@Au for rapid and highly selective detection of glutathione.

A simple, rapid and straightforward method for detecting reduced glutathione (GSH) was developed supported on smartphone analysis software package and a peroxide simulated catalyst nanoparticles (Fe3O4@Au) system. The nanocomposite was prepared by self-assembling technique, and the characterization was carried out using transmission electron microscopy, Fourier transforms infrared, and X-ray diffractometer. Fe3O4@Au materials have catalyzed the oxidation of a typical colorimetric substrate in the presence of H2O2, with the color changes from colorless to green oxidized. A smartphone with a free self-developed app referred to as "Color Capture" was accustomed live the RGB (red-greenblue) values of color intensity within the Fe3O4@Au system and computationally convert them GSH concentrations. The smartphone detection system showed high property and sensitivity of GSH detection. It gave a constant correlation (R2 = 0.9973) between the colour intensity of I and the GSH concentration, with a linear vary of 0-0.25 mmol/L, and a detection limit of 0.013 µmol/L. The results obtained were most consistent with the results obtained in ultraviolet spectrophotometry. The colorimetric system is based on smartphone analysis software developed to detect GSH in actual samples with potential application values.

Development and inheritance of's acupuncture school / 中国针灸

's acupuncture school in Gansu,represented byand,is of great influence in China.'s acupuncture school originated from(Inner Canon of Yellow Emperor) and(Classic of Questioning),and shaped aroundDynasty andDynasty. Professorhas formed a unique "'s acupuncture" diagnosis and treatment system by inheritance and innovation. He clinically paid attention to basic training,obtainingand keeping spirit,as well as syndrome differentiation,reinforcing and reducing. Also,he took the priority the pressing hand with bilaterally needle manipulation. Besides,he thought important simplicity,innovation and acupoints selecting according to time. We inherited's acupuncture from his family,teachers'techniques,international communication,college and university education and scientific research. In this article we prescribe the development,the inheritance and the protection measures of's acupuncture school in terms of its origination,academic thought,and inheritance research,etc.,so as to provide references for further study and inheritance.

Effects of Rabeprazole on Symptoms and Psychological Status in Patients with Non-erosive Reflux Disease / 中国药房

OBJECTIVE:To investigate the effect of rabeprazole on symptoms and psychological status of patients with non-erosive reflux disease (NERD).METHODS:GerdQ questionnaire survey was performed in 169 patients who accorded with diagnosis criteria to investigate relevant symptoms of gastroesophageal reflux disease in 1 week.Symptoms scores were carried out according to the occurrence frequency of heartburn,gastroesophageal reflux,nausea and epigastric pain,etc.RESULTS:159 NERD patients completed 4 weeks of treatment.GerdQ score was (10.44?1.62) and SAS score (47.11?10.92),SDS score (44.59?11.2) before treatment.After 1 week of treatment,relevant clinical symptoms relieved obviously,and SAS score and SDS score were lower than before treatment strikingly.The decrease of SAS score and SDS score were more significant after 4 weeks of treatment.There were statistical significance (P