A 45-year-old female with known situs inversus totalis presented with left-sided abdominal discomfort. Chest X-ray, abdominal ultrasonography and CT scan confirmed the diagnosis of a gallstone, as well as, situs inver...A 45-year-old female with known situs inversus totalis presented with left-sided abdominal discomfort. Chest X-ray, abdominal ultrasonography and CT scan confirmed the diagnosis of a gallstone, as well as, situs inversus;Laparoscopic cholecystectomy was safely performed with mirror image of standard 4 ports. Callots triangle dissection was done with epigastric working port by surgeon, but gallbladder fossa dissection was done by surgical assistant from midclavicular port as main working port. Laparoscopic surgeon should be careful for view of reversed relationships and also for existence of other anomalies.展开更多
In this study we have reported the design and development of a facile,sensitive,selective,and label-free electrochemical sensing platform for the detection of atrazine based on MWCNT-embedded ZnO nanofibers.Electrospu...In this study we have reported the design and development of a facile,sensitive,selective,and label-free electrochemical sensing platform for the detection of atrazine based on MWCNT-embedded ZnO nanofibers.Electrospun nanofibers were characterized using scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),X-ray photoelectron spectroscope(XPS),UV-Visible spectroscope(UV-VIS),and Fourier-transform infrared spectroscope(FTIR).Electrochemical properties of MWCNT-ZnO nanofiber-modified electrodes were assessed using electrochemical impedance spectroscopy(EIS)and cyclic voltammetry(CV).Binding event of atrazine to anti-atrazine antibody,which immobilized on nanofiber-modified electrode via EDC and NHS chemistry,was transduced with EIS.Due to high conductivity,surface area,and low bandgap of MWCNT-ZnO nanofibers,we have achieved the sensitivity and limit of detection(LoD)of sensor as 21.61(KΩμg^(−1) mL^(−1))cm^(−2) and 5.368zM for a wide detection range of 10 zM–1µM.The proposed immunosensing platform has good stability,selectivity,repeatability,and reproducibility,and are less prone to interference.展开更多
文摘A 45-year-old female with known situs inversus totalis presented with left-sided abdominal discomfort. Chest X-ray, abdominal ultrasonography and CT scan confirmed the diagnosis of a gallstone, as well as, situs inversus;Laparoscopic cholecystectomy was safely performed with mirror image of standard 4 ports. Callots triangle dissection was done with epigastric working port by surgeon, but gallbladder fossa dissection was done by surgical assistant from midclavicular port as main working port. Laparoscopic surgeon should be careful for view of reversed relationships and also for existence of other anomalies.
文摘In this study we have reported the design and development of a facile,sensitive,selective,and label-free electrochemical sensing platform for the detection of atrazine based on MWCNT-embedded ZnO nanofibers.Electrospun nanofibers were characterized using scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),X-ray photoelectron spectroscope(XPS),UV-Visible spectroscope(UV-VIS),and Fourier-transform infrared spectroscope(FTIR).Electrochemical properties of MWCNT-ZnO nanofiber-modified electrodes were assessed using electrochemical impedance spectroscopy(EIS)and cyclic voltammetry(CV).Binding event of atrazine to anti-atrazine antibody,which immobilized on nanofiber-modified electrode via EDC and NHS chemistry,was transduced with EIS.Due to high conductivity,surface area,and low bandgap of MWCNT-ZnO nanofibers,we have achieved the sensitivity and limit of detection(LoD)of sensor as 21.61(KΩμg^(−1) mL^(−1))cm^(−2) and 5.368zM for a wide detection range of 10 zM–1µM.The proposed immunosensing platform has good stability,selectivity,repeatability,and reproducibility,and are less prone to interference.
