E-journal of Surface Science and Nanotechnology最新文献

{"title":"Preface for the Special Issue of ALC’22","authors":"H. Shigekawa, Hiroshi Daimon, Hiroki Hibino","doi":"10.1380/ejssnt.2023-069","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-069","url":null,"abstract":"","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"26 22","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138594308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Emerging Trends of Nanotechnology-Based Advanced Cosmeceuticals","authors":"U. Awan, R. Saeed, Hammad Ismail, Sheikh Zain Ul Abidin, Joham Sarfraz Ali, Muhammad Zeeshan Bhatti","doi":"10.1380/ejssnt.2023-068","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-068","url":null,"abstract":"","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"121 23","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138606925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peripheral nerve sheath tumour mimicking deep calf thrombus: An incidental finding during lower limb venous Doppler ultrasound.","authors":"Christopher Ekene Ilounoh, Rajuno Ernest Eteng, Samuel Lincoln Bukenya","doi":"10.1177/1742271X231155407","DOIUrl":"10.1177/1742271X231155407","url":null,"abstract":"<p><strong>Introduction: </strong>Peripheral nerve sheath tumours are neurogenic neoplasms that arise from the nerve sheath which are not within the central nervous system. While most of these lesions may be benign, some of them may undergo malignant transformation, establishing why it is imperative for ultrasound practitioners to familiarise themselves with ultrasound presentations of this lesion to facilitate early and effective diagnosis, which would in turn positively impact patient management.</p><p><strong>Case report: </strong>We present an incidental finding of a thrombus-mimicking peripheral nerve sheath tumour in a female patient who came to the ultrasound department for a left leg deep vein thrombosis scan.</p><p><strong>Discussion: </strong>This case study demonstrates a peripheral nerve sheath tumour which by virtue of its location (very closely adjacent the deep calf veins) and appearance (incompressible, heterogeneous, minimal colour flow), mimicked a deep calf vein thrombus on ultrasound. Careful surveillance of the area on ultrasound revealed the lesion was distinct from the calf vasculature, and further imaging was advised. A magnetic resonance imaging was conducted confirming the diagnosis of a peripheral nerve sheath tumour.</p><p><strong>Conclusion: </strong>In addition to assessing the lower limb venous system during deep venous thrombosis scans, sonographers should be mindful that other soft tissue lesions such as peripheral nerve sheath tumour may be present with symptoms that mimic those of a thrombotic leg, and therefore check to exclude or confirm the presence of any adjacent soft tissue lesions, especially at the symptomatic site indicated by the patient.</p>","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"7 1","pages":"317-322"},"PeriodicalIF":4.4,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10621495/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88713682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phototherapeutic Keratectomy for Salzmann's Nodular Degeneration. What Effect Does the Choice of Excimer Laser Have on Treatment Success?","authors":"Susanne Barbara Claudia Mahler, Christian Adams, Loay Daas, Achim Langenbucher, Berthold Seitz","doi":"10.1055/a-1788-3819","DOIUrl":"10.1055/a-1788-3819","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to assess the difference in treatment success after phototherapeutic keratectomy (PTK) for Salzmann's nodular degeneration (SND) using two excimer lasers with different specifications.</p><p><strong>Patients and methods: </strong>272 PTK procedures, which had been performed on 246 eyes with SND from 181 patients, were retrospectively examined in the period from 2007 to 2017. Until 2014 the excimer laser MEL70 (Carl Zeiss Meditec Vertriebsgesellschaft mbH, Oberkochen, Germany) was used for PTK following manual pannectomy, and after 2014 the excimer laser Amaris 750S (Schwind eye-tech-solutions GmbH, Kleinostheim, Germany) was used. Treatment success was assessed on basis of visual acuity, refraction, and astigmatism, as well as pachymetry and endothelial cell count, recorded at the following time points: T1 = preoperative, T2 = 6-week follow-up, T3 = 6-month follow-up. The Wilcoxon-Mann-Whitney U test and the chi-square test with a significance level of 5% were used to compare the data.</p><p><strong>Results: </strong>A significantly higher improvement of 0.17 ± 0.33 logMAR could be shown for visual acuity in the Schwind group (p < 0.013) after 6 months. In the Zeiss group, visual acuity improved by only 0.11 ± 0.36 (logMAR p < 0.057). Regarding refraction, a significant reduction of the spherical equivalent (SEQ) (p < 0.001) by 3.35 ± 2.76 diopters (D) after 6 months could only be shown for the Schwind group. SEQ did not change significantly in the Zeiss group (p < 0.676). The topographic astigmatism was significantly improved after 6 months in both study groups, by 1.73 ± 1.99 D in the Schwind group (p < 0.001) and by 1.99 ± 2.21 D in the Zeiss group (p < 0.0001). Haze had to be treated in 12.7% of the cases in the Schwind group and in 16.2% of the cases in the Zeiss group. No endothelial cell damage was found in either group.</p><p><strong>Conclusions: </strong>In both study groups, the patients with SND clearly benefited from PTK. However, a significantly higher advantage for visual acuity and refraction was shown for the Schwind group compared with the Zeiss group. In contrast to the usual hyperopic effect of PTK in other diagnoses, PTK in SND showed a \"myopic shift\", which can be explained by the often midperipheral SND nodes and the associated asymmetric tear film pooling prior to surgery.</p>","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"7 1","pages":"1262-1268"},"PeriodicalIF":0.8,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88713770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface Facet Effect on the Adsorption of Iodine and Astatine on Gold Surface","authors":"Jeffrey Tanudji, Susan M. Aspera, Hideaki Kasai, Michio Okada, Tetsuo Ogawa, Hiroshi Nakanishi","doi":"10.1380/ejssnt.2023-067","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-067","url":null,"abstract":"We have performed first principles calculation study based on density functional theory on the adsorption of iodine and astatine on Au(111) and Au(211), including spin-orbit coupling (SOC) effects in some calculations. These surfaces are the dominant surface termination to represent a face-centered cubic nanoparticle. We found that both iodine and astatine adsorb stronger on the edge-bridge site of the Au(211) surface than on the flat Au(111) surface by about 0.2 eV. This result also makes the adsorbate less likely to diffuse after adsorption on the (211) surface as compared to the (111) surface. Additionally, we found that SOC effects, usually a necessity when considering heavy elements, are not significant in these cases, as can be seen by the energy and geometric data. Finally, we found the difference in adsorption energy between iodine and astatine on gold surface can be expected due to the presence of 4f electrons in astatine, which is not present in iodine. The 4f electrons offer less shielding of the nucleus, making the valence electrons of astatine closer to the nucleus, and therefore a smaller atomic radius. This information is useful both for experimental verification and future developments of gold nanoparticles for radiotherapy.","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135666863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Photoemission Microscopy Apparatus Using a Vacuum Ultraviolet Laser","authors":"Koichiro Yaji, Shunsuke Tsuda","doi":"10.1380/ejssnt.2023-066","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-066","url":null,"abstract":"We report on a photoemission microscopy apparatus using a 10.9-eV laser developed at the National Institute for Materials Science (NIMS). Our spectrometer realizes photoemission spectroscopy with a high spatial resolution by combining an imaging double energy analyzer with the electronic lens system of photoelectron emission microscopy. Energy-filtered photoelectron imaging is available in both real and momentum spaces. The spatial resolution in the real space mode is ∼30 nm. We show energy-filtered photoelectron images of a silver grid-patterned sample in real space and the band mapping of Au(111) in momentum space to demonstrate the performance of our spectrometer.","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135924677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of Surface Modification of Polyimide Containing Steroidal Structure as a Function of Storage Time Using Second-Order Nonlinear Optical Spectroscopy","authors":"Trinh Thi Nguyen, Wentao Du, Hien Thi Thu Khuat, Goro Mizutani","doi":"10.1380/ejssnt.2023-065","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-065","url":null,"abstract":"The modification of a polyimide surface containing a 30% fraction of steroidal structure was studied as a function of storage time by vibrational sum frequency generation (SFG) spectroscopy and optical second-harmonic generation (SHG). The variation of the symmetric and anti-symmetric stretching modes of the CH3 isopropyl group at the end of the side chain of the rubbed polyimide was detected in the SFG spectra after a 3-month storage time in a practical environment. It suggests that the isopropyl group might be reoriented. On the other hand, the SHG response of the same sample showed an insignificant storage-time dependence. As a result, the phenyl rings of the polyimide are judged to be unmodified after long-term storage time. The change is suggested to occur for two main reasons. One is the interaction between the polyimide polymers and the ambient water molecules. The other is the adsorption of unknown organic molecules on the polyimide surface.","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134946927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D-Printed Beam Window for J-PARC COMET Project","authors":"Hiroyuki Shidara, Shunsuke Makimura, Yoshinori Fukao, Yutaka Nagasawa, Masahiro Onoi, Hiroaki Kurishita, Naoya Kamei","doi":"10.1380/ejssnt.2023-064","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-064","url":null,"abstract":"We have developed the beam windows for the COherent Muon to Electron Transition (COMET) project. The COMET project is under construction at the proton beam accelerator facility J-PARC in Japan. Windows are one of key components on the beam line. The beam window should pass the beam of proton or other particles effectively, with robustly separating sections of the beam line. After research and developments for the beam windows especially focused on the shape and structure, we employed a dome shape which has radius curvature(s) on to the beam passing area, instead of a conventional thin and flat shape. Additionally, we employed a thicker structure on the circumference part to give higher mechanical strength. To manufacture cost consciously, the beam windows are fabricated by a three-dimensional printer, additive manufacturing (AM) to realize a hard to cut and machine shape. The detailed dimensions were designed through numerical analysis. There are requirements of high transmission efficiency of the beam, such as the material density must be low, and the thickness must be as thin as possible, while minimizing the nuclear heat generation by beam energy loss. Thus, the material was chosen as titanium alloy, Ti-6Al-4V. After the window shape was formed by AM, the voids inside the window were killed by hot isostatic pressing. Finally the window was polished to be smoothen the surface and tailored its thickness. As the first step to be used for the COMET project, for Phase-α we fabricated domes of 270 and 220 mm to mate with the rotatable flanges. The target values of the dome were the thickness tailored below 0.5 mm, and the pressure withstanding performance over 0.8 MPa for each diameter model. Throughout the tests we confirmed that the windows satisfied the target values, and the windows could withstand 0.9 MPa when pressurized from concave side of the dome.","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136129648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomic and Electronic Structures on a Mordenite Zeolite","authors":"Shinya Hosokawa, Hitoshi Sato, Yasuhisa Tezuka, Jun-ichi Adachi, Koji Kimura, Koichi Hayashi, Shinji Kohara, Hiroo Tajiri, Kentaro Kobayashi, Akihide Koura, Fuyuki Shimojo","doi":"10.1380/ejssnt.2023-063","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-063","url":null,"abstract":"Atomic structures of an insulating and hydrophobic zeolite sample of mordenite were measured by high-energy X-ray diffraction, and a pair distribution function analysis was carried out. Valence- and conduction-band O 2p partial densities of states (DOSs) in a mordenite were measured by soft X-ray emission and absorption spectroscopies (SXES and SXAS), respectively. The SXAS spectrum for the conduction band O 2p orbital has characteristic structures like that of crystalline SiO2, while pre-shoulders are observed in mordenite. By choosing characteristic energies in the SXAS spectrum for the incident photon energies, SXES spectra were obtained, in which a large peak and three small peaks or shoulders can be assigned by a lone pair orbital and bonding (σ) ones, respectively. A density functional theory was applied to determine the exact atomic structures and electronic states, and they are in good agreement with the corresponding experiments. It is concluded that the O 2p partial DOS is mainly O-Si covalent bonds, and the Al and Na atoms have minor contributions for them. From this study, it was found that the fundamental properties of complex zeolites can only be obtained in combination of experimental and theoretical investigations as mentioned above, which can open feasibilities to uncover the origin of active sites in functional zeolites.","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136129647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DFT Study of Bowtie Shaped Nanographene","authors":"Reo Iida, Shoichi Sakamoto, Mitsuyoshi Tomiya","doi":"10.1380/ejssnt.2023-060","DOIUrl":"https://doi.org/10.1380/ejssnt.2023-060","url":null,"abstract":"The density functional theory (DFT) is used to analyze the fundamental electronic properties, electronic states of bowtie shaped nanographene (C38H18 Clar's Goblet, CG), which is expected to be applied to such as spintronic devices. We also analyze triangulene, which is similar to CG and easier to make larger structures by increasing connections than CG. We investigate up to the trimer for CG and up to the tetramer for triangulene. In addition, we calculate the electronic structure of nanographene doped with boron and nitrogen. CG and triangulene have smaller bandgaps with BN dopants at the ferromagnetic state. We find that in ferromagnetic states, nitrogen and boron doping brings the up-spin and down-spin levels closer to the Fermi level, especially in triangulene, both levels are almost equal to the Fermi level, and the wavefunctions are localized at both ends of the triangulene.","PeriodicalId":11626,"journal":{"name":"E-journal of Surface Science and Nanotechnology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135305551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}