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| 1 | A combination treatment of entecavir and early-phase corticosteroid in severe exacerbation of chronic hepatitis B显示文摘Of patients with severe exacerbation of chronic hepatitis B accompanied by jaundice and coagulopathy,20%-30%have a fatal outcome.In this report,we describe 2 cases of severe exacerbation of chronic hepatitis B with jaundice and coagulopathy who were successfully treated with a combination of entecavir and corticosteroid.In both cases,rapid reductions in serum hepatitis B virus(HBV)-DNA levels were observed,and corticosteroid was stopped after serum HBV-DNA levels became undetectable.Entecavir treatment was continued.Generally,entecavir treatment reduced serum HBV-DNA levels rapidly,although the improvement in liver function was delayed by a few weeks.During this time lag,liver cell injury continued and the disease progressed.Corticosteroid suppressed the excessive host immune response and was useful for stopping progressive deterioration.A combination of entecavir and early-phase corticosteroid may be a useful treatment in severe exacerbation of chronic hepatitis B. | Kazuyuki Matsumoto Yasuhiro Miyake Hirokazu Miyatake Masahiro Takahara Takayuki Imada Satoru Yagi Tatsuya Toyokawa Morihito Nakatsu Masaharu Ando Mamoru Hirohata | 2009 | World Journal of Gastroenterology2009，15，13： | 16 |
| 2 | Current advances in humanized mouse models显示文摘收到了人的房间或纸巾的人性化的老鼠模型移植在基本、适用的人的疾病研究是极其有用的。高度 immunodeficient 老鼠,不拒绝异种皮移植和支持细胞和织物区别和生长,为产生另外的适当模型是不可缺少的。自从 2000 年代初,为产生人性化的老鼠适当的一系列 immunodeficient 老鼠是连续地由介绍 IL-2Rγ 发展了; 空 基因(例如, NOD/SCID/γ c 空 和 Rag2 空 γc 空 老鼠) 。这些紧张显示出不仅高度人的房间嫁接评价,而且产生区分得好的 multilineage 在人的造血的干细胞(HSC ) 以后的人的造血的房间移植。这些人性化的老鼠在 vivo 便于人的血液学和免疫学的分析。然而,从 HSC 开发的人的造血的房间不与那些 phenotypically 并且机能上地总是相同在人。更最近, immunodeficient 老鼠的一个新系列补偿劣势这些。这些老鼠被遗传上介绍人的 cytokine 基因进 NOD/SCID/γ 产生; c 空 和 Rag2 空 γc 空 老鼠。在这评论,我们描述在这些老鼠开发的人的造血的房间的当前的知识。用这些人性化的老鼠的各种各样的人的疾病老鼠模型被总结。 | Ryoji Ito Takeshi Takahashi Ikumi Katano Mamoru Ito | 2012 | Cellular & Molecular Immunology2012，9，3： | 15 |
| 3 | Endoscopic ultrasound-guided gallbladder drainage for acute cholecystitis: Long-term outcomes after removal of a self-expandable metal stent显示文摘AIM To assess the long-term outcomes of this procedure after removal of self-expandable metal stent(SEMS). The efficacy and safety of endoscopic ultrasoundguided gallbladder drainage(EUS-GBD) with SEMS were also assessed.METHODS Between January 2010 and April 2015, 12 patients with acute calculous cholecystitis, who were deemed unsuitable for cholecystectomy, underwent EUSGBD with a SEMS. EUS-GBD was performed under the guidance of EUS and fluoroscopy, by puncturing the gallbladder with a needle, inserting a guidewire, dilating the puncture hole, and placing a SEMS. TheSEMS was removed and/or replaced with a 7-Fr plastic pigtail stent after cholecystitis improved. The technical and clinical success rates, adverse event rate, and recurrence rate were all measured.RESULTS The rates of technical success, clinical success, and adverse events were 100%, 100%, and 0%, respectively. After cholecystitis improved, the SEMS was removed without replacement in eight patients, whereas it was replaced with a 7-Fr pigtail stent in four patients. Recurrence was seen in one patient(8.3%) who did not receive a replacement pigtail stent. The median follow-up period after EUS-GBD was 304 d(78-1492).CONCLUSION EUS-GBD with a SEMS is a possible alternative treatment for acute cholecystitis. Long-term outcomes after removal of the SEMS were excellent. Removal of the SEMS at 4-wk after SEMS placement and improvement of symptoms might avoid migration of the stent and recurrence of cholecystitis due to food impaction. | Ken Kamata Mamoru Takenaka Masayuki Kitano Shunsuke Omoto Takeshi Miyata Kosuke Minaga Kentaro Yamao Hajime Imai Toshiharu Sakurai Tomohiro Watanabe Naoshi Nishida Masatoshi Kudo | 2017 | World Journal of Gastroenterology2017，23，4： | 15 |
| 4 | Comparative study of esomeprazole and lansoprazole in triple therapy for eradication of Helicobacter pylori in Japan显示文摘AIM:To evaluate the efficacy and safety of esomeprazole-based triple therapy compared with lansoprazole therapy as first-line eradication therapy for patients with Helicobacter pylori(H.pylori)in usual post-marketing use in Japan,where the clarithromycin(CAM)resistance rate is 30%.METHODS:For this multicenter,randomized,openlabel,non-inferiority trial,we recruited patients(≥20years of age)with H.pylori infection from 20 hospitals in Japan.We randomly allocated patients to esomeprazole therapy(esomeprazole 20 mg,CAM 400 mg,amoxicillin(AC)750 mg for the first 7 d,with all drugs given twice daily)or lansoprazole therapy(lansoprazole30 mg,CAM 400 mg,AC 750 mg for the first 7 d,with all drugs given twice daily)using a minimization method with age,sex,and institution as adjustment factors.Our primary outcome was the eradication rate by intention-to-treat(ITT)and per-protocol(PP)analyses.H.pylori eradication was confirmed by a urea breath test from 4 to 8 wk after cessation of therapy.RESULTS:ITT analysis revealed the eradication rates of 69.4%(95%CI:61.2%-76.6%)for esomeprazole therapy and 73.9%(95%CI:65.9%-80.6%)for lansoprazole therapy(P=0.4982).PP analysis showed eradication rate of 76.9%(95%CI:68.6%-83.5%)for esomeprazole therapy and 79.8%(95%CI:71.9%-86.0%)for lansoprazole therapy(P=0.6423).There were no differences in adverse effects between the two therapies.CONCLUSION:Esomeprazole showed non-inferiority and safety in a 7 day-triple therapy for eradication of H.pylori compared with lansoprazole. | Tsutomu Nishida Masahiko Tsujii Hirohisa Tanimura Shusaku Tsutsui Shingo Tsuji Akira Takeda Atsuo Inoue Hiroyuki Fukui Toshiyuki Yoshio Osamu Kishida Hiroyuki Ogawa Masahide Oshita Ichizo Kobayashi Shinichiro Zushi Makoto Ichiba Naoto Uenoyama Yuichi Yasunaga Ryu Ishihara Mamoru Yura Masato Komori Satoshi Egawa Hideki Iijima Tetsuo Takehara | 2014 | World Journal of Gastroenterology2014，20，15： | 13 |
| 5 | 振动工况下环管内气液两相流参数分布实验研究显示文摘为模拟地震对反应堆堆芯内两相流动的影响,将振动产生装置与实验段结合,并利用电导探针技术实验研究了振动工况下环管内气液两相流局部参数的分布特性。振动装置所采用的偏心轮的偏心距为15.875mm,并可通过调节电机转速获得不同的振动周期。环管实验段内径和外径分别为19.1mm和38.1mm,总长度为2.32m。实验以空气和水为工质,流动工况覆盖了泡状流、弹状流及搅混流等流型。实验结果表明,振动对管内气液两相流局部参数如含气率和界面浓度等分布具有重要影响。随振动周期的减小,管内两相流参数分布发生明显变化。另外振动对低含气率的泡状流影响较大,随含气率的增加,流型逐渐向搅混流过度,振动对两相流参数的影响逐渐减小。 | 肖秀 朱庆子 王冠轶 陈绍文 张亚军 贾海军 Mamoru Ishii | 2017 | 原子能科学技术2017，51，1： | 9 |
| 6 | Distribution of late gadolinium enhancement in various types of cardiomyopathies:Significance in differential diagnosis, clinical features and prognosis显示文摘The recent development of cardiac magnetic resonance(CMR)techniques has allowed detailed analyses of cardiac function and tissue characterization with high spatial resolution.We review characteristic CMR features in ischemic and non-ischemic cardiomyopathies(ICM and NICM),especially in terms of the location and distribution of late gadolinium enhancement(LGE).CMR in ICM shows segmental wall motion abnormalities or wall thinning in a particular coronary arterial territory,and the subendocardial or transmural LGE.LGE in NICM generally does not correspond to any particular coronary artery distribution and is located mostly in the mid-wall to subepicardial layer.The analysis of LGE distribution is valuable to differentiate NICM with diffusely impaired systolic function,including dilated cardiomyopathy,end-stage hypertrophic cardiomyopathy(HCM),cardiac sarcoidosis,and myocarditis,and those with diffuse left ventricular(LV)hypertrophy including HCM,cardiac amyloidosis and Anderson-Fabry disease.A transient low signal intensity LGE in regions of severe LV dysfunction is a particular feature of stress cardiomyopathy.In arrhythmogenic right ventricular cardiomyopathy/dysplasia,an enhancement of right ventricular(RV)wall with functional and morphological changes of RV becomes apparent.Finally,the analyses of LGE distribution have potentials to predict cardiac outcomes and response to treatments. | Hiroshi Satoh Makoto Sano Kenichiro Suwa Takeji Saitoh Mamoru Nobuhara Masao Saotome Tsuyoshi Urushida Hideki Katoh Hideharu Hayashi | 2014 | World Journal of Cardiology2014，6，7： | 8 |
| 7 | A case of hepatic angiomyolipoma difficult to distinguish from hepatocellular carcinoma显示文摘We report a case of hepatic angiomyolipoma with uncommon clinical features. A 56-year-old man presented with a hepatic tumor in the caudate lobe. The tumor was hypoechoic on ultrasonography, showed early-phase hyperattenuation on enhanced computed tomography and did not absorb iron on superparamagnetic iron oxide-enhanced magnetic resonance imaging. Hepatocellular carcinoma was highly suspected, and the patient underwent hepatic resection. Histologically, the tumor was mainly composed of smooth muscle cells and contained small amounts of adipose cells and blood vessels. On immunohistochemical staining, the smooth muscle cells were positive for a melanocytic cell-specific monoclonal antibody. In cases with uncommon features of angiomyolipoma, it is quite difficult to distinguish angiomyolipoma from hepatocellular carcinoma. | Masahiro Takahara Yasuhiro Miyake Kazuyuki Matsumoto Daisuke Kawai Eisuke Kaji Tatsuya Toyokawa Morihito Nakatsu Masaharu Ando Mamoru Hirohata | 2009 | World Journal of Gastroenterology2009，15，23： | 8 |
| 8 | Implications of Transient Receptor Potential Cation Channels in Migraine Pathophysiology显示文摘Migraine is a common and debilitating headache disorder. Although its pathogenesis remains elusive,abnormal trigeminal and central nervous system activity is likely to play an important role. Transient receptor potential(TRP) channels, which transduce noxious stimuli into pain signals, are expressed in trigeminal ganglion neurons and brain regions closely associated with the pathophysiology of migraine. In the trigeminal ganglion,TRP channels co-localize with calcitonin gene-related peptide, a neuropeptide crucially implicated in migraine pathophysiology. Many preclinical and clinical data support the roles of TRP channels in migraine. In particular,activation of TRP cation channel V1 has been shown to regulate calcitonin gene-related peptide release from trigeminal nerves. Intriguingly, several effective antimigraine therapies, including botulinum neurotoxin type A, affect the functions of TRP cation channels. Here, we discuss currently available data regarding the roles of major TRP cation channels in the pathophysiology of migraine and the therapeutic applicability thereof. | Mamoru Shibata Chunhua Tang | 2021 | Neuroscience Bulletin2021，37，1： | 7 |
| 9 | Human PBMC-transferred murine MHC class I/II-deficient NOG mice enable long-term evaluation of human immune responses显示文摘Immunodeficient mice engrafted with human peripheral blood cells are promising tools for in vivo analysis of human patient individual immune responses.However,when human peripheral blood mononuclear cells(PBMCs)are transferred into NOG(NOD/Shi-scid,IL-2rg null)mice,severe graft versus host disease(GVHD)hinders long term detailed analysis.Administration of human PBMCs into newly developed murine MHC class I-and class II-deficient NOG(NOG-dKO;NOG-Iab,B2m-double-knockout)mice showed sufficient engraftment of human immune cells with little sign of GVHD.Immunization with influenza vaccine resulted in an increase in influenza-specific human IgG Ab,indicating induction of antigen-specific B cells in the NOG-dKO mice.Immunization with human dendritic cells pulsed with HLA-A2 restricted cytomegalovirus peptide induced specific cytotoxic T cells,indicating the induction of antigen-specific T cells in the NOG-dKO mice.Adoptive cell therapies(ACTs)using melanoma antigen recognized by T cells(MART-1)-specific TCR-transduced activated T cells showed strong tumor growth inhibition in NOG-dKO mice without any sign of GVHD accompanied by preferential expansion of the transferred MART-1-specific T cells.ACTs using cultured human melanoma infiltrating T cells also showed anti-tumor effects against autologous melanoma cells in NOG-dKO mice,in which changes in human cancer phenotypes by immune intervention,such as increased CD271 expression,could be evaluated.Therefore,NOG-dKO mice are useful tools for more detailed analysis of both the induction and effector phases of T-cell and B-cell responses for a longer period than regular NOG mice. | Tomonori Yaguchi Asuka Kobayashi Takashi Inozume Kenji Morii Haruna Nagumo Hiroshi Nishio Takashi Iwata Yuyo Ka Ikumi Katano Ryoji Ito Mamoru Ito Yutaka Kawakami | 2018 | Cellular & Molecular Immunology2018，15，11： | 6 |
| 10 | FTY720,Sphingosine 1-Phosphate Receptor Modulator,Ameliorates Experimental Autoimmune Encephalomyelitis by Inhibition of T Cell Infiltration显示文摘FTY720, a sphingosine 1-phosphate receptor modulator, induces a marked decrease in the number of peripheral blood lymphocytes and exerts immunomodulating activity in various experimental allograft and autoimmune disease models. In this study, we evaluated the effect of FTY720 and its active metabolite, (S)-enantiomer of FTY720-phosphate [(S)-FTY720-P] on experimental autoimmune encephalomyelitis (EAE) in rats and mice.Prophylactic administration of FTY720 at 0.1 to 1 mg/kg almost completely prevented the development of EAE,and therapeutic treatment with FTY720 significantly inhibited the progression of EAE and EAE-associated histological change in the spinal cords of LEW rats induced by immunization with myelin basic protein. Consistent with rat EAE, the development of proteolipid protein-induced EAE in SJL/J mice was almost completely prevented and infiltration of CD4+ T cells into spinal cord was decreased by prophylactic treatment with FTY720 and (S)-FTY720-P. When FTY720 or (S)-FTY720-P was given after establishment of EAE in SJL/J mice, the relapse of EAE was markedly inhibited as compared with interferon-β, and the area of demyelination and the infiltration of CD4+ T cells were decreased in spinal cords of EAE mice. Similar therapeutic effect by FTY720 was obtained in myelin oligodendrocyte glycoprotein-induced EAE in C57BL/6 mice. These results indicate that FTY720 exhibits not only a prophylactic but also a therapeutic effect on EAE in rats and mice, and that the effect of FTY720 on EAE appears to be due to a reduction of the infiltration of myelin antigen-specific CD4+ T cells into the inflammation site. | Hirotoshi Kataoka Kunio Sugaharal Kyoko Shimano Koji Teshima Mamoru Koyama Atsyshi Fukunari Kenji Chiba | 2005 | Cellular & Molecular Immunology2005，2，6： | 5 |
| 11 | Airglow observation by Fabry-Perot Interferometer显示文摘An all-sky and a scanning Fabry-Perot interferometers (FPI)have been developed for observations of vertical winds and two-dimensional atmospheric motions in the low-thermosphere and the mesosphereregion by the measurement of Doppler shift and broadening of airglow, emission lines. The system 0f FPI isdescribed and the method of data analysis is propsoed,an example of observation is also given. | Ai Yong Mamoru Ishii Minoru Kubota Shoichi Okano Zhang Xunjie Lu Shu | 1998 | Wuhan University Journal of Natural Sciences1998，3，2： | 5 |
| 12 | 静水中较大气泡运动特性实验研究显示文摘对较大气泡在静水中的水力学特性、气泡上升速度、气泡形状与曳力系数等进行研究。气泡的产生是通过将特定体积的气泡存放在倒置的球帽杯中,然后释放到静水中。气泡的运动特性通过高速摄像仪捕捉,气泡相关运动参数通过数字图像处理程序得到。实验得到不同尺寸气泡在静水中上升的特性,并将实验结果与现有的曳力模型进行比较,表明Tomiyama等关系式对于曳力以及气泡最终上升的预测比Ishii-Chawa模型好,较大气泡的形状具有一定的相似性。实验结果对存在较大气泡的两相流动特性以及相间交换特性有重要意义。 | 李仲春 宋小明 姜胜耀 俞冀阳 Mamoru Ishii | 2015 | 核动力工程2015，36，1： | 5 |
| 13 | Comparison of HER2 gene amplification assessed by fluorescence in situhybridization and HER2 protein expression assessed by immunohistochemistry ingastric cancer显示文摘 | Tomonori Yano Toshihiko Doi Atsushi Ohtsu Narikazu Boku Kaoru Hashizume Mamoru Nakanishi Atsushi Ochiai | 2006 | Oncology Reports2006，，1： | 4 |
| 14 | Molecular Basis of Neuroimmune Interaction in an In Vitro Coculture Approach显示文摘A team of researchers from Nagoya,Tokyo and Hamilton developed a unique technique for studying neuro-immune interaction with confocal laser scanning fluorescence microscopy several years ago. It relies on guiding immune and nerve cell interaction by creating an adhesive environment using an in vitro coculture dish. With their technique,they are able to study details of the mechanism of how nerve cells communicate with immune cells (mast cells and T lymphocytes) and vice versa. They showed that nerve-mast cell communication could occur in the absence of an intermediary transducing cell and that the neuropeptide substance P,operating via NK-1 receptors,was a soluble factor of this communication. In addition,recently,they showed that ATP which was released from activated mast cells mediated the activation of nerve cells. Further,with their technique,Nagoya's group was able to study details of the molecular mechanism of nerve-mast cell interaction. N-cadherin and CADM1 (cell adhesion molecule 1) appeared to mediate attachment and promoted the communication between mast cells and nerves predominantly. It would lead to new therapeutic modalities for diseases based on neuroimmune interaction such as neurogenic inflammation,intestinal bowel diseases,asthma,and autoimmune disorders. | Mamoru Nakanishi Tadahide Furuno | 2008 | Cellular & Molecular Immunology2008，5，4： | 4 |
| 15 | Risk factors for local recurrence and appropriate surveillance interval after endoscopic resection显示文摘BACKGROUND Risk factors for local recurrence after polypectomy, endoscopic mucosal resection(EMR), and endoscopic submucosal dissection(ESD) have not been identified.Additionally, the appropriate interval for endoscopic surveillance of colorectal tumors at high-risk of local recurrence has not been established.AIM To clarify the clinicopathological characteristics of recurrent lesions after endoscopic colorectal tumor resection and determine the appropriate interval.METHODS Three hundred and sixty patients(1412 colorectal tumors) who underwent polypectomy, EMR, or ESD and received endoscopic surveillance subsequently for more than one year to detect local recurrence were enrolled in this study. The clinicopathological factors associated with local recurrence were determined via univariate and multivariate analyses.RESULTS Local recurrence was observed in 31 of 360(8.6%) patients [31 of 1412(2.2%)lesions] after colorectal tumor resection. Piecemeal resection, tumor size of more than 2 cm, and the presence of villous components were associated with colorectal tumor recurrence after endoscopic resection. Of these three factors, the piecemeal resection procedure was identified as an independent risk factor for recurrence. Colorectal tumors resected into more than five pieces were associated with a high risk of recurrence since the average period from resection torecurrence in these cases was approximately 3 mo. The period to recurrence in cases resected into more than 5 pieces was much shorter than that in those resected into less than 4 pieces(3.8 ± 1.9 mo vs 7.9 ± 5.0 mo, P < 0.05).CONCLUSION Local recurrence of endoscopically treated colorectal tumors depends upon the outcome of first endoscopic procedure. Piecemeal resection was the only significant risk factor associated with local recurrence after endoscopic resection. | Yoriaki Komeda Tomohiro Watanabe Toshiharu Sakurai Masashi Kono Kazuki Okamoto Tomoyuki Nagai Mamoru Takenaka Satoru Hagiwara Shigenaga Matsui Naoshi Nishida Naoko Tsuji Hiroshi Kashida Masatoshi Kudo | 2019 | World Journal of Gastroenterology2019，25，12： | 4 |
| 16 | Radiation exposure during image-guided endoscopic procedures: The next quality indicator for endoscopic retrograde cholangiopancreatography显示文摘Endoscopic retrograde cholangiopancreatography(ERCP) is one of the most frequently used image-guided procedures in gastrointestinal endoscopy. Post-ERCP pancreatitis is an important concern, and prophylaxis, cannulation and other related technical procedures have been well documented by endoscopists. In addition, medical radiation exposure is of great concern in the general population because of its rapidly increasing frequency and its potential carcinogenic effects. International organizations and radiological societies have established diagnostic reference levels, which guide proper radiation use and serve as global standards for all procedures that use ionizing radiation. However, data on gastrointestinal fluoroscopic procedures are still lacking because the demand for these procedures has recently increased. In this review, we present the current status of quality indicators for ERCP and the methods for measuring radiation exposure in the clinical setting as the next quality indicator for ERCP. To reduce radiation exposure, knowledge of its adverse effects and the procedures for proper measurement and protection are essential. Additionally, further studies on the factors that affect radiation exposure, exposure management and diagnostic reference levels are necessary. Then, we can discuss how to manage medical radiation use inthese complex fluoroscopic procedures. This knowledge will help us to protect not only patients but also endoscopists and medical staff in the fluoroscopy unit. | Shiro Hayashi Mamoru Takenaka Makoto Hosono Tsutomu Nishida | 2018 | World Journal of Clinical Cases2018，6，16： | 4 |
| 17 | Treatment of chronic pancreatitis complicated by obstruction of the common bile duct or duodenum显示文摘 | Charles F. Frey M.D. Mamoru Suzuki M.D. Shuji Isaji M.D | 1990 | World Journal of Surgery1990，，1： | 3 |
| 18 | Wind characteristics of a strong typhoon显示文摘 | Shuyang Cao Yukio Tamura Naoshi Kikuchi Mamoru Saito Ikuo Nakayama Yutaka Matsuzaki | 2008 | Journal of Wind Engineering & Industrial Aerodynamics2008，，1： | 3 |
| 19 | Sediment organic matter source estimation and ecological classification in the semi-enclosed Batan Bay Estuary, Philippines显示文摘The large organic matter flow in tropical coastal areas is recognized as an important process in the global carbon(C)cycle.However,the nature of organic matter flow in semi-enclosed tropical estuaries remains unclear due to the various environmental processes(tidal change,river flow,waves from the sea,and internal circulation)and organic matter sources therein.Thus,sediment organic matter(SOM)sources,and their distribution pattern,are key to understanding ecosystem material flow.Our research in the Batan Bay Estuary,Philippines,a semi-enclosed estuary under large mangrove deforestation,was conducted to determine ecosystem properties through analysis of C and nitrogen stable isotope ratios and environmental factors.First,we determined that mangrove litter,microphytobenthos,and phytoplankton are the main SOM sources in the Batan Bay Estuary.Second,the estuary was classified into three ecological zones(the Bay zone,Back-barrier zone,and River zone).In addition,we estimated SOM source ratios using the Stable Isotope Analysis in R package and determined different organic matter sources in different zone.The high ratios of mangrove litter as SOM indicate that a large amount of terrestrial plant organic matter remains despite the heavy mangrove deforestation that has occurred since the 1980s,and that the Back-barrier zone consists of a different type of ecosystem that promotes accumulation of C from mangrove litter and microphytobenthos. | Yuya Ogawa Yuki Okamoto Resurreccion Bitoon Sadaba Mamoru Kanzaki | 2021 | International Journal of Sediment Research2021，36，1： | 3 |
| 20 | CO2 capture over molecular basket sorbents:Effects of SiO2 supports and PEG additive显示文摘The objective of this work is to study the influences of silica supports and PEG additive on the sorption performance of molecular basket sorbent(MBS) for CO_2 capture consisting of polyethylenimine and one of the following supports: SBA-15(2-D structure), TUD-1(3-D sponge-like structure) and fumed silica HS-5(3-D disordered structure). Effects of the supports regarding pore structures and pore properties, the PEI loading amount as well as the sorption temperature were examined. Furthermore, polyethylene glycol(PEG) was introduced as an additive into the sorbents and its effect was investigated at different PEI loadings and sorption temperatures. The results suggest that the pore properties of MBS(after PEI loading) play a more important role in the CO_2 sorption capacity, rather than those of the supports alone.MBS with 3D pore structure exhibits higher CO_2 sorption capacity and amine efficiency than those with 2D-structured support. Among the sorbents studied, fumed silica(HS-5) based MBS showed the highest CO_2 sorption capacity in the temperature range of 30-95 °C, probably due to its unique interstitial pores formed by the aggregation of polymer-loaded SiO_2 particles. It was found that the temperature dependence is directly related to the PEI surface coverage layers. The more PEI surface coverage layers, the higher diffusion barrier for CO_2 and the stronger temperature dependence of CO_2 capacity. 3D MBS exceeds 2D MBS at the same PEI coverage layers due to lower diffusion barrier. Adding PEG can significantly enhance the CO_2 sorption capacity and improve amine efficiency of all MBS, most likely by alleviating the diffusion barrier within PEI bulk layers through the inter-molecular interaction between PEI and PEG. | Lin Zhang Xiaoxing Wang Mamoru Fujii Linjun Yang Chunshan Song | 2017 | Journal of Energy Chemistry2017，26，5： | 3 |
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