The synchrotron-based hard X-ray nanotomography beamline, named 7C X-ray Nano Imaging (XNI), was recently established at Pohang Light Source II. This beamline was constructed primarily for full-field imaging of the inner structures of biological and material samples. The beamline normally provides 46 nm resolution for still images and 100 nm resolution for tomographic images, with a 40 µm field of view. Additionally, for large-scale application, it is capable of a 110 µm field of view with an intermediate resolution.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1107/S1600577514008224 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Background: People with Down syndrome (pwDS) have a high prevalence of early-onset Alzheimer's disease (AD). With the two-fold increase in life expectancy for pwDS, identifying early biomarkers for AD in this patient population is needed (PMID: 32593336). Previously we have shown that phenotyping using ultra-widefield retinal imaging (UWFI) has the potential to identify peripheral retinal biomarkers for AD, such as higher prevalence of peripheral hard drusen (pHD) and lower peripheral retinal vascular fractal dimension (RVFD) compared to controls (Ctrl) (PMID: 29621759, PMID: 34458553).
View Article and Find Full Text PDFImpact of gamma radiation on marginal adaptation of nanohybrid composite and composition of dental hard tissues - Scanning electron microscopy and X-ray diffraction analysis: An pilot study.
J Conserv Dent Endod
November 2024
Department of Conservative Dentistry and Endodontics, Guru Nanak Dev Dental College and Research Institute, Sangrur, Punjab, India.
Aims: This pilot study aimed to compare the marginal adaptation of composite resin at the tooth-restoration interface, before and after radiation.
Subjects And Methods: Fifteen extracted premolars were divided into 2 experimental groups (based on the timing of irradiation) and 1 control group of 5 teeth each. In Group I (control group), teeth were restored but not exposed to radiation at any stage, Group II: teeth were irradiated before cavity preparation and restoration, and Group III: after cavity preparation and restoration employing selective etch technique, teeth were exposed to radiation.
Development and characterization of silicone-based tissue phantoms for pulse oximeter performance testing.
J Biomed Opt
June 2024
Food and Drug Administration, Center for Devices and Radiological Health, Silver Spring, Maryland, United States.
Significance: Pulse oximeter measurements are commonly relied upon for managing patient care and thus often require human testing before they can be legally marketed. Recent clinical studies have also identified disparities in their measurement of blood oxygen saturation by race or skin pigmentation.
Aim: The development of a reliable bench-top performance test method based on tissue-simulating phantoms has the potential to facilitate pre-market assessment and the development of more accurate and equitable devices.
Defining the caudal limits of the endoscopic endonasal approach to the craniovertebral junction: anatomic study correlating radiographic measures.
Acta Neurochir (Wien)
January 2025
Department of Otolaryngology-Head and Neck Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
Objective: The endoscopic endonasal approach (EEA), has become the preferred alternative to traditional open and transoral approaches to the ventral craniovertebral junction (CVJ) region. However, preoperative prediction of the limitations of caudal reach remains challenging. This cadaveric study aimed to quantify the CVJ area of exposure and access afforded by the EEA, evaluate the accuracy of previously described radiographic anthropometric lines, and identify the lowest limit of the EEA corridor.
View Article and Find Full Text PDFQualitative comparison of decalcifiers for mouse bone cryosections for subsequent biophotonic analysis.
Sci Rep
January 2025
Leibniz Institute of Photonic Technology (Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research, LPI), 07745, Jena, Germany.
Bone tissue, with its complex structure, often necessitates decalcification of the hard tissue for ex vivo morphological studies. The choice of a suitable decalcification method plays a crucial role in preserving desired features and ensuring compatibility with diverse imaging techniques. The search for a universal decalcification method that is suitable for a range of biophotonic analyses remains an ongoing challenge.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!