Increasing compositional backscattered electron contrast in scanning electron microscopy

Timischl, Felix; Inoue, Noriyuki

doi:10.1016/j.ultramic.2017.12.001

Cited by 12 publications

(2 citation statements)

References 10 publications

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“…[ 20 ] After spraying with TiO 2 , The asymmetric structure of CuS/TiO 2 could not be displayed intuitively, which may be due to the similar contrast of near atomic number of Cu and Ti in TEM images. [ 21 ] Therefore, the element mapping analysis was further employed to evaluate the Ti distribution on the nanoparticles. The elemental mapping images in Figure 1B demonstrated the asymmetric Ti distribution on the nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

Self‐Thermophoretic Nanoparticles Enhance Intestinal Mucus Penetration and Reduce Pathogenic Bacteria Interception in Colorectal Cancer

Wang

Huang

Zhang

et al. 2023

Adv Funct Materials

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Colorectal cancer (CRC) is the second most common cause of cancer incidence worldwide. Oral drug delivery systems (ODDS) have shown great promise for CRC therapy, but the delivery efficiency is still challenged by the dense intestinal mucus barrier and nonspecific interception of abnormally proliferated pathogenic bacteria. Herein, self-thermophoretic nanoparticles (CTPB) is presented to enhance intestinal mucus penetration and reduce pathogenic bacteria interception in CRC for efficient drug delivery. The nanoplatform introduces hollow mesoporous copper sulfide and is asymmetrically sprayed with titanium dioxide as the self-thermophoretic matrix. Based on the close relationship between pathogenic bacteria and CRC, the nanoplatform is camouflaged by the biomimetic membrane of Staphylococcus aureus to precisely anchor in the intestinal segment of CRC. After near-infrared laser irradiation, CTPB can effectively increase the intestinal mucus penetration efficiency by 2.7 folds, and decrease the pathogenic bacterial interception by 3.5 folds via the self-thermophoretic propulsion force. In orthotopic CRCbearing mice, CTPB vastly improved the drug delivery efficiency to CRC after oral administration, thus showing a 99.4% antitumor rate after three weeks of treatment, which provides new insight into oral drug delivery for CRC therapy.

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Section: Resultsmentioning

confidence: 99%

Self‐Thermophoretic Nanoparticles Enhance Intestinal Mucus Penetration and Reduce Pathogenic Bacteria Interception in Colorectal Cancer

Wang

Huang

Zhang

et al. 2023

Adv Funct Materials

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“…Se mide el espesor obteniendo un valor promedio de 216 µm. Se percibe la presencia de un recubrimiento bien adherido y los nódulos de grafito La micrografía del sustrato y del recubrimiento tomada con electrones retrodispersados (figura 9) evidencia las diferencias de composición en cuanto a su densidad [20]. En la figura 10 (electrones secundarios) se muestra un aumento (zoom) de la zona de la interfaz entre el recubrimiento y el metal base.…”

Section: Caracterización Metalográficaunclassified

Caracterización electroquímica de recubrimientos Zn-Al sobre fundición nodular grado 2, obtenidos por proyección térmica por flama con alambre

Diaz

Ortiz-Godoy

Navarro

et al. 2020

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La proyección térmica o rociado térmico es una tecnología que implica calentar un material que está en forma de polvo o alambre y llevarlo a un estado fundido o semifundido, para luego propulsarlo mediante una corriente de gas o aire comprimido y depositarlo sobre un sustrato metálico, cerámico o polimérico, que tenga condiciones de rugosidad adecuadas. La investigación realizó la caracterización electroquímica mediante las técnicas de espectroscopia de impedancia electroquímica y ruido electroquímico de una aleación Zn-15Al depositada sobre una fundición nodular grado 65-45-12 (2), por medio de la técnica de proyección térmica por llama con alambre, donde el recubrimiento de Zn-Al presenta buena homogeneidad, buena adherencia y una mejora sustancial en la resistencia a la corrosión.

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Oxidation Behavior of Microstructured and Nanostructured Co0.94Ni0.06Sb3 Thermoelectric Materials

et al. 2020

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Increasing compositional backscattered electron contrast in scanning electron microscopy

Cited by 12 publications

References 10 publications

Self‐Thermophoretic Nanoparticles Enhance Intestinal Mucus Penetration and Reduce Pathogenic Bacteria Interception in Colorectal Cancer

Self‐Thermophoretic Nanoparticles Enhance Intestinal Mucus Penetration and Reduce Pathogenic Bacteria Interception in Colorectal Cancer

Caracterización electroquímica de recubrimientos Zn-Al sobre fundición nodular grado 2, obtenidos por proyección térmica por flama con alambre

Oxidation Behavior of Microstructured and Nanostructured Co0.94Ni0.06Sb3 Thermoelectric Materials

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