Publications by authors named "H Teshima"
Despite the importance of the effect of subnanoscale roughness on contact line behavior, it is difficult to directly observe the local behavior of contact lines at the micro- and nanoscale, leaving significant gaps in our current understanding. In this research, we investigate contact line motions and their relationship with nanoscale surface topography using coherence scanning interferometry. Our experiments were conducted on the substrates with different wettability without changing nanoscale surface topography.
View Article and Find Full Text PDFBackground: Early detection of gastric cancer can play a key role in improving prognosis. Recently, light-emitting diodes (LED) have been developed as novel endoscopic systems. However, the differences in the visibility of gastric neoplastic lesions between LED and laser endoscopy remains unclear.
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- Serum markers like gastrin and pepsinogen help assess the risk of gastric cancer, but their effectiveness in predicting metachronous gastric cancer after endoscopic submucosal dissection (ESD) remains uncertain.
- A study analyzed 197 patients with gastric cancer lesions who underwent ESD, finding significant predictive factors such as severe mucosal atrophy and high gastrin levels that increase the likelihood of metachronous gastric cancer.
- The research indicates that elevated serum gastrin levels, especially in patients not using proton pump inhibitors, could serve as a valuable tool for monitoring gastric cancer risk after ESD.
Precursor-film-driven ultra-early depinning of the three-phase contact line.
J Colloid Interface Sci
January 2025
Hypothesis: Despite its importance in colloid and interface science, contact line pinning remains poorly understood, especially in the presence of a precursor film. We hypothesized that this is due to a lack of an experimental method capable of directly observing their physics at the nanoscale.
Methods: Using coherence scanning interferometry, we visualized the three-dimensional behavior of contact lines with a precursor film near a nanogroove structure composed of flat terrace surfaces and steps with an inclination angle of 30° while achieving nanoscale vertical resolution.
Background/objectives: Eradication therapy for gastritis was approved for insurance coverage by the Japanese government in 2013. Since then, the incidence of gastric cancer discovered after eradication (GCAE) has increased. However, there are only a few reports of GCAE diagnosed more than 10 years after eradication.
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