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Surface-modified Ag@Ru-P25 for photocatalytic CO_(2) conversion with high selectivity over CH_(4) formation at the solid–gas interface

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Carbon Energy 2024年第1期6卷 182-196页

作者： Chaitanya B.Hiragond Sohag Biswas Niket SPowar Junho Lee Eunhee Gong Hwapyong kim hong soo kim Jin-Woo Jung Chang-Hee Cho Bryan M.Wong Su-Il In Department of Energy Science&Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguRepublic of Korea Department of Chemical&Environmental Engineering Materials Science&Engineering ProgramDepartment of ChemistryDepartment of Physics&AstronomyUniversity of California-RiversideRiversideCaliforniaUSA Department of Physics and Chemistry Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguRepublic of Korea NiceScience Corporation DaeguRepublic of Korea

Systematic optimization of the photocatalyst and investigation of the role of each component is important to maximizing catalytic activity and comprehending the photocatalytic conversion of CO_(2) reduction to solar fuels.A surface-modified Ag@Ru-P25 photocatalyst with H_(2)O_(2) treatment was designed in this study to convert CO_(2) and H_(2)O vapor into highly selective *** doping followed by Ag nanoparticles(NPs)cocatalyst deposition on P25(TiO_(2))enhances visible light absorption and charge separation,whereas H_(2)O_(2) treatment modifies the surface of the photocatalyst with hydroxyl(–OH)groups and promotes CO_(2) ***-resonance transmission electron microscopy,X-ray photoelectron spectroscopy,X-ray absorption near-edge structure,and extended X-ray absorption fine structure techniques were used to analyze the surface and chemical composition of the photocatalyst,while thermogravimetric analysis,CO_(2) adsorption isotherm,and temperature programmed desorption study were performed to examine the significance of H_(2)O_(2) treatment in increasing CO_(2) reduction *** optimized Ag1.0@Ru1.0-P25 photocatalyst performed excellent CO_(2) reduction activity into CO,CH4,and C2H6 with a~95%selectivity of CH4,where the activity was~135 times higher than that of pristine TiO_(2)(P25).For the first time,this work explored the effect of H_(2)O_(2) treatment on the photocatalyst that dramatically increases CO_(2) reduction activity.

关键词： gas-phase CO_(2) reduction H_(2)O_(2) treatment plasmonic nanoparticles solar fuel photocatalyst surface modification

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Synchronous quintuple primary gastrointestinal tract malignancies: Case report

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World Journal of Gastroenterology 2017年第1期23卷 173-177页

作者： soo-hong kim Byung-soo Park Hyun Sung kim Jae Hun kim Department of Surgery Pusan National University Yangsan Hospital Department of Surgery Pusan National University Hospital

Multiple primary malignancy is defined as two or more malignancies detected in an individual person. In particular, synchronous quintuple primary malignancy is extremely rare. A 52-year-old male with anal pain and intermittent blood-tinged stool was diagnosed with malignancies in the stomach, jejunum, ascending colon, transverse colon and rectum. He underwent a subtotal gastrectomy, segmental resection of the jejunum and total protocolectomy with end ileostomy. The postoperative pathologic findings were moderate differentiated gastric adenocarcinoma (pT1bN0M0, pStageIA), combined adenocarcinoma and neuroendocrine carcinoma of the jejunum (pT3N0M0, pStageIIA), three mucinous adenocarcinoma of the ascending colon (pT3N0M0, pStageIIA), transverse colon (pT1N0M0, pStageI) and rectum (pT3N1aM0, pStageIIIB). The tumors did not lack MLH-1 and MSH-2 expression, as the markers (bat26, D5S346, bat25, D2S123) suggest MSI-H presence. Adjuvant chemoradiotherapy was started according to regimen, FOLFOX 4 for advanced rectal cancer. Six years post-operation, the patient is currently attending regular follow-ups without recurrence or metastasis.

关键词： Small bowel neoplasm Stomach neoplasm Synchronous quintuple primary cancer Colon neoplasm

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Distinctive clinical features of spontaneous pneumoperitoneum in neonates: A retrospective analysis

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World Journal of Clinical Cases 2022年第23期10卷 8124-8132页

作者： soo-hong kim Yong-Hoon Cho Hae-Young kim Department of Surgery Pusan National University Yangsan HospitalPusan National University School of MedicineYangsan 50612South Korea Research Institute for Convergence of Biomedical Science and Technology Pusan National University Yangsan HospitalYangsan 50612South Korea

BACKGROUND Spontaneous pneumoperitoneum(SP) without gastrointestinal perforation rarely occurs in neonates, with most SP cases being idiopathic. Although SP usually follows a benign clinical course with favorable prognosis, it can become lifethreatening in certain situations. In these cases, urgent surgical intervention may be required. Therefore, it may be difficult to decide when or how to perform prompt *** To demonstrate the distinct clinical features of SP to guide appropriate management by comparing characteristics between SP and typical pneumoperitoneum secondary to gastrointestinal *** We retrospectively reviewed electronic medical records and identified 37 neonates with radiological evidence of pneumoperitoneum who were treated at our institution. Clinical variables were compared between neonates with SP without gastrointestinal perforation(Group A) and those with pneumoperitoneum secondary to gastrointestinal perforation(Group B). Clinical variables between groups were compared using Student’s t-test and the chi-square test. The risk factors related to mortality were examined using multi-logistic regression *** Group A comprised 35.1%(13/37) of the patients. The frequency of persistent pulmonary hypertension(53.8%) and pneumothorax(46.2%) before the development of pneumoperitoneum was significantly higher in group A than in group B(P =0.004). Platelet count and partial pressure of arterial oxygen(PaO) were significantly lower in group A(P = 0.015 and 0.025, respectively). Overall mortality was significantly higher in group A than in group B(76.9% vs 16.7%, P = 0.001). Only preterm infants were significantly associated with high mortality(P = 0.041;odds ratio = 18.0). Accompaniment with persistent pulmonary hypertension and pneumothorax were also significantly high(P = 0.004) in group A, but these were not strongly associated with high *** This study identified a higher mortality rate in patients w

关键词： Spontaneous pneumoperitoneum Thrombocytopenia Persistent pulmonary hypertension Pneumothorax Preterm

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Surgical perspectives of symptomatic omphalomesenteric duct remnants: Differences between infancy and beyond

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World Journal of Clinical Cases 2021年第36期9卷 11228-11236页

作者： Ayoung Kang soo-hong kim Yong-Hoon Cho Hae-Young kim Department of Surgery Pusan National University Yangsan HospitalYangsan 50612South Korea Department of Surgery Pusan National University School of MedicineYangsan 50612South Korea Research Institute for Convergence of Biomedical Science and Technology Pusan National University Yangsan HospitalYangsan 50612South Korea

BACKGROUND The clinical manifestations of omphalomesenteric duct remnant(OMDR)can vary with the age at diagnosis,from asymptomatic incidental findings to symptoms related to gastrointestinal *** lifelong complication rates are reported as 4%-34%,and complications are more common in patients younger than 2 years of *** authors attempted to identify different clinical features and management for the various pediatric age *** To find surgical perspectives for the pediatric age-related variants of OMDR and make recommendations for optimal *** The medical records of pediatric patients diagnosed with OMDR were reviewed *** patients diagnosed based on incidental findings during other surgeries were *** patients were divided into two groups based on age:12 mo(beyond infancy).We analyzed the demographic characteristics,clinical manifestations,diagnostic tools,surgical procedures,and clinical outcomes of the patients and compared them for the age ***-squared and Fisher's exact tests were used for nominal scales and a Mann-Whitney test was used for ratio *** A total of 35 patients(7 infants,28 children beyond infancy)were finally *** both groups,Meckel's diverticulum(MD)was the most common type of OMDR,while umbilical lesions were more common in the infant group(P=0.006).Hematochezia and abdominal pain were common in the beyond infancy group,while umbilical lesions were the most frequent symptoms in the infant *** diagnostic tools were used,but Meckel's scan was most useful in diagnosing OMDR in patients with painless rectal *** invasive surgery was more commonly performed for children than for infants(P=0.016).Single-incision laparoscopic surgery(SILS)was performed for fifteen patients who underwent laparoscopic *** were only three cases of postoperative complications,and all patients survived in good *** The cli

关键词： Omphalomesenteric duct remnant Age Surgical Meckel's diverticulum Single-incision laparoscopic surgery Children

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Emerging role of ^(18)F-fluorodeoxyglucose positron emission tomography for guiding management of hepatocellular carcinoma

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World Journal of Gastroenterology 2019年第11期25卷 1289-1306页

作者： Sang Mi Lee hong soo kim Sangheun Lee Jeong Won Lee Department of Nuclear Medicine Soonchunhyang University Cheonan Hospital Department of Internal Medicine Soonchunhyang University Cheonan Hospital Division of Hepatology Department of Internal medicineCatholic Kwandong University College of MedicineInternational St.Mary’s Hospital Institute for Health and Life Science Catholic Kwandong University College of MedicineInternational St.Mary’s Hospital Department of Nuclear Medicine Catholic Kwandong University College of MedicineInternational St.Mary’s Hospital

Hepatocellular carcinoma(HCC) is one of major causes of cancer mortality worldwide. For decades, ^(18)F-fluorodeoxyglucose(FDG) positron emission tomography(PET) has been widely used for staging, predicting prognosis, and detecting cancer recurrence in various types of malignant diseases. Due to low sensitivity of FDG PET for detecting intrahepatic HCC lesions, the clinical value of FDG PET in HCC patients has been limited. However, recent studies with diverse analytic methods have shown that FDG PET has promising role in aiding management of HCC patients. In this review, we will discuss the clinical role of FDG PET for staging, predicting prognosis, and evaluating treatment response in HCC. Further, we will focus on recent clinical studies regarding implication of volumetric FDG PET parameters, the significance of FDG uptake in HCC for selecting treatment and predicting treatment response, and the use of radiomics of FDG PET in HCC.

关键词： Hepatocellular carcinoma Fluorodeoxyglucose F18 Positron emission tomography Staging Prognosis

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Endoscopic transcystic stent placement for an intrahepatic abscess due to gallbladder perforation

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World Journal of Gastroenterology 2007年第9期13卷 1458-1459页

作者： Myung soo Kang Do Hyun Park Ki Du Kwon Jeong Hoon Park Suck-Ho Lee hong-soo kim Sang-Heum Park Sun-Joo kim Division of Gastroenterology Department of Internal MedicineSoon Chun Hyang University Cheonan HospitalCheonan Korea

Perforation of the gallbladder with cholecystohepatic communication is a rare cause of liver abscess. Because it is a rare entity, the treatment modality has not been fully established. We report for the first time a patient with an intrahepatic abscess due to gallbladder perforation successfully treated by endoscopic stent placement into the gallbladder who had a poor response to continuous percutaneous drainage.

关键词： Liver abscess Gallbladder perforation Endoscopic stent placement Cholecystohepatic communication

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Laparoscopic partial cystectomy with mucosal stripping of extraluminal duodenal duplication cysts

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World Journal of Gastroenterology 2014年第4期20卷 1123-1126页

作者： Jeik Byun Hyoung-Min Oh soo-hong kim Hyun-Young kim Sung-Eun Jung Kwi-Won Park Woo-Sun kim Department of Pediatric Surgery Seoul National University Children’s Hospital Department of Radiology Seoul National University Hospital

Duodenal duplication cysts are rare congenital *** duplication should be considered in the differential diagnosis of patients who present with abdominal symptoms with cystic structures neighboring the ***,we present an 8-year-old girl with a duodenal duplication cyst treated with partial cystectomy with mucosal stripping performed *** surgery can be considered as a treatment option for duodenal duplication cysts,especially in extraluminal locations.

关键词： Duodenal duplication cyst Laparoscopic surgery Partial cystectomy Extraluminal situation Children

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Chemical ablation of the gallbladder using alcohol in cholecystitis after palliative biliary stenting

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World Journal of Gastroenterology 2009年第16期15卷 2041-2043页

作者： Tae Hoon Lee Sang-Heum Park Sang Pil kim Ji-Young Park Chang Kyun Lee Il-Kwun Chung hong soo kim Sun-Joo kim Division of Gastroenterology Department of Internal MedicineSoonchunhyang University College of MedicineCheonan Hospital

Chemical ablation of the gallbladder is effective in patients at high risk of complications after surgery. Percutaneous gallbladder drainage is an effective treatment for cholecystitis; however, when the drain tube cannot be removed because of recurrent symptoms, retaining it can cause problems. An 82-year-old woman presented with cholecystitis and cholangitis caused by biliary stent occlusion and suspected tumor invasion of the cystic duct. We present successful chemical ablation of the gallbladder using pure alcohol, through a percutaneous gallbladder drainage tube, in a patient who developed intractable cholecystitis with obstruction of the cystic duct after receiving a biliary stent. Our results suggest that chemical ablation therapy is an effective alternative to surgical therapy for intractable cholecystitis.

关键词： Percutaneous cholecystostomy Cholecystitis Biliary stenting Alcohol Chemical therapy

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Modified rendezvous intrahepatic bile duct cannulation technique to pass a PTBD catheter in ERCP

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World Journal of Gastroenterology 2010年第42期16卷 5388-5390页

作者： Tae Hoon Lee Sang-Heum Park Sae Hwan Lee Chang-Kyun Lee Suck-Ho Lee Il-Kwun Chung hong soo kim Sun-Joo kim Division of Gastroenterology Department of Internal MedicineSoon Chun Hyang University College of MedicineCheonan Hospital23-20 Bongmyung-dongCheonan-siChungcheongnam-do330-721South Korea

The rendezvous procedure combines an endoscopic technique with percutaneous transhepatic biliary drainage(PTBD).When a selective common bile duct cannulation fails,PTBD allows successful drainage and retrograde access for subsequent rendezvous ***,rendezvous procedures such as the PTBDassisted over-the-wire cannulation method,or the parallel cannulation technique,may be available when a bile duct cannot be selectively *** selective intrahepatic bile duct(IHD) cannulation fails,this modified rendezvous technique may be a feasible *** report the case of a modified rendezvous technique,in which the guidewire was retrogradely passed into the IHD through the C2 catheter after end-to-end contact between the tips of the sphincterotome and the C2 catheter at the ampulla's orifice,in a 39-year-old man who had been diagnosed with gallbladder carcinoma with a metastatic right IHD *** this procedure may be a feasible and timesaving technique.

关键词： Endoscopic retrograde cholangiopancreatography Intrahepatic bile duct Rendezvous technique

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Endoscopic diverticulotomy with an isolated-tip needle-knife papillotome (Iso-Tome) and a fitted overtube for the treatment of a Killian-Jamieson diverticulum

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World Journal of Gastroenterology 2008年第42期14卷 6589-6592页

作者： Chang Kyun Lee Il-Kwun Chung Ji-Young Park Tae Hoon Lee Suck-Ho Lee Sang-Heum Park hong-soo kim Sun-Joo kim Division of Gastroenterology Department of Internal Medicine Soonchunhyang University College of Medicine Cheonan Hospital Cheonan Choongnam 330-721 South Korea

A Killian-Jamieson diverticulum （KID） is an unfamiliar and rare cervical esophageal diverticulum. This diverticulum originates on the anterolateral wall of the proximal cervical esophagus through a muscular gap （the Killian-Jamieson space） below the cricopharyngeal muscle and lateral to the longitudinal muscle of the esophagus. To date, only surgical treatment has been recommended for a symptomatic KJD due to its close proximity to the recurrent laryngeal nerve and the concern of possible nerve injury. Recently, traditional open surgery for a symptomatic KJD is being challenged by the development of new endoscopic techniques and devices. We present here a case of a symptomatic KID that was successfully treated with the flexible endoscopic diverticulotomy using two new devices. An isolated-tip needle-knife papillotome （Iso-Tome） was used for the dissection of the tissue bridge of the diverticulum. And a flexible overtube with a modified distal end （a fitted overtube） was used for adequate visualization of the tissue bridge of the diverticulum and protection of the surrounding tissue during dissection of the tissue bridge. Our successful experience suggests that the flexible endoscopic diverticulotomy with the use of appropriate endoscopicdevices can be a safe and effective method for the treatment of a symptomatic KJD.

关键词： Esophagus Diverticulum Killian-Jamieson diverticulum Endoscopy Diverticulotomy

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