Comparison of results of scanning electron microscopy and magnetic resonance imaging before and after administration of a radiographic contrast agent in the tendon of the deep digital flexor muscle obtained from horse cadavers

Decellularized porcine kidneys were recellularized with renal epithelial cells by three methods: perfusion through the vasculature under high pressure, perfusion through the ureter under high pressure, or perfusion through the ureter under moderate vacuum. Histology, scanning electron microscopy, confocal microscopy, and magnetic resonance imaging were used to assess vasculature preservation and the distribution of cells throughout the kidneys. Cells were detected in the magnetic resonance imaging by labeling them with iron oxide. Perfusion of cells through the ureter under moderate vacuum (40 mmHg) produced the most uniform distribution of cells throughout the kidneys.

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Structure and Permeability Characterization of Sinojackia xylocarpa Hu drupe, based on High-field Magnetic Resonance Imaging, Scanning Electron Microscopy, Paraffin Section Detection

10.21203/rs.2.22821/v2 ◽

2020 ◽

Author(s):

YU WU ◽

Bao Shen

Keyword(s):

Magnetic Resonance Imaging ◽

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Magnetic Resonance ◽

Water Distribution ◽

Paraffin Section ◽

Resonance Imaging ◽

Magnetic Resonance Imaging Mri ◽

Scanning Electron

Abstract Sinojackia xylocarpa Hu is an endangered plant species endemic to China. In this study, we observed the permeability of Sinojackia xylocarpa Hu drupe in the imbibition phase by using magnetic resonance imaging (MRI) dynamics, and obtained the spatial representation of the water distribution in the drupe. At the same time, the structure of the drupe, the permeability of the seed coat and the endosperm were monitored through scanning electron microscopy (SEM), and paraffin section detection (PSD) .

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Theragnostic Magnetic Core-Shell Nanoparticle as Versatile Nanoplatform for Magnetic Resonance Imaging and Drug Delivery

Biointerface Research in Applied Chemistry ◽

10.33263/briac115.1327613289 ◽

2021 ◽

Vol 11 (5) ◽

pp. 13276-13289

Keyword(s):

Electron Microscopy ◽

Drug Delivery ◽

Scanning Electron Microscopy ◽

Magnetic Resonance ◽

Contrast Agent ◽

Magnetic Core ◽

Mri Contrast Agent ◽

Core Shell ◽

Mri Contrast ◽

Scanning Electron

In this study, magnetic core-shell (MCS) nanoparticles were prepared as theragnostic potential nanoplatforms for simultaneously targeted drug delivery systems for tamoxifen and diagnosis. MCS nanoparticles were prepared in a well-shaped spherical form by the o/w emulsion method and characterized by means of dynamic light scattering (DLS), Scanning electron microscopy (SEM), Nuclear magnetic resonance (NMR), transform infrared (FT-IR) spectroscopy, and vibrating sample magnetometer (VSM). Scanning electron microscopy (SEM) indicated spherical nanostructures' formation with the final average particle size of around 80 nm. The findings proved the superparamagnetic properties of the MCS nanoparticles with relatively high-magnetization values (11.69 emu/g), which indicate that they were sensitive enough to external magnetic fields as a magnetic drug carrier. The nanoparticles showed 8.14% and 52.19% drug loading and encapsulation efficiency, respectively. MCS nanoparticles showed sustained release behavior for 120 h in the phosphate-buffered saline (PBS, pH= 7.4, 5.4) at 37 °C. The ratio between transverse and longitudinal relaxivity (r2/r1) value of the MCS nanoparticles was around 20, indicating their potential as a T2 MRI contrast agent. It can be concluded that the prepared MCS nanoparticles may serve as a promising carrier as an MRI contrast agent and targeted controlled anticancer drug delivery.

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Correlating Subcellular Contrast Agent Location from Dynamic Contrast-Enhanced Magnetic Resonance Imaging (dMRI) and Analytical Electron Microscopy

Academic Radiology ◽

10.1016/s1076-6332(03)80280-5 ◽

2002 ◽

Vol 9 (2) ◽

pp. S514-S518 ◽

Cited By ~ 12

Author(s):

Michael D Noseworthy ◽

Cameron Ackerley ◽

Xuiling Qi ◽

Graham A Wright

Keyword(s):

Magnetic Resonance Imaging ◽

Electron Microscopy ◽

Magnetic Resonance ◽

Contrast Agent ◽

Analytical Electron Microscopy ◽

Resonance Imaging ◽

Dynamic Contrast Enhanced ◽

Contrast Enhanced ◽

Analytical Electron

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Flowering and Inflorescence Development of Lachenalia aloides `Pearsonii' as Influenced by Bulb Storage and Forcing Temperature

HortScience ◽

10.21273/hortsci.39.4.833b ◽

2004 ◽

Vol 39 (4) ◽

pp. 833B-833

Author(s):

Mark Roh*

Keyword(s):

Magnetic Resonance Imaging ◽

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Low Temperatures ◽

Imaging Techniques ◽

Leaf Length ◽

Resonance Imaging ◽

Inflorescence Development ◽

Magnetic Resonance Imaging Techniques ◽

Scanning Electron

The effect of bulb storage and forcing temperatures on growth, flowering, and inflorescence development and the death of inflorescence (blast) of Lachenalia aloides Engl., `Pearsonii' was investigated. Following development of about 5 florets, bulbs were stored at 10, 12.5, 15, 20, and 25 °C for 15, 30, or 45 days and forced in greenhouses at 17/15 °C and 21/19 °C. Flowering was accelerated, and leaf length and floret number were reduced, when bulbs were stored at 10, 12.5, or 15 °C for 45 days compared to storing at 20 or 25 °C. Flowering was further accelerated by forcing at 17/15 °C compared to 21/19 °C. When bulbs were stored at 10, 15, 20, or 25 °C for 4 weeks and grown in greenhouses at 17/15 °C, 21/19 °C, 25/23 °C, and 29/27 °C, the incidence of inflorescence blast was increased when bulbs were stored at 10 and 15 °C and forced at 25/23 °C compared to low temperatures. Bulbs were forced in greenhouses maintained at 18/16 °C, 22/20 °C, or 26/24 °C for 12 weeks. During forcing, plants were subjected to constant or alternating forcing temperatures at 4-week intervals. Inflorescence blast occurred when the temperature was 26/24°C during the first 4 weeks after potting. Storing Lachenalia bulbs at 10&#176 to 15 °C before potting then forcing at 17/15 °C accelerated flowering and produced quality plants with short leaves and floral stems. Inflorescence development during bulb 10 °C treatment and inflorescence blast that occurred after only 3 days of 35 °C was demonstrated using scanning electron microscopy and magnetic resonance imaging techniques.

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