Fully-automatic defects classification and restoration for STM images
Publication date: Available online 5 December 2019Source: MicronAuthor(s): Xian-guang Fan, Yi Wu, Yu-Liang Zhi, Hong Xia, Xin WangAbstractThe Scanning tunneling microscope (STM) is a micro instrument designed for surface morphology with nanometer precision. The restoration of the STM image defects usually needs human judgements and manual positioning because of the diversity of the morphology and the randomness of the defects. This paper provides a new fully-automatic method that combines deep convolutional neural classification network and unique restoration algorithms corresponding to different defects. Aimed at automati...
Source: Micron - December 7, 2019 Category: Biology Source Type: research
Scanning Electron Microscopy as a New Tool for Diagnostic Pathology and Cell Biology
Publication date: Available online 4 December 2019Source: MicronAuthor(s): Tzipi Cohen Hyams, Keriya Mam, Murray C. KillingsworthAbstractScanning electron microscopy (SEM) use in the biomedical sciences has traditionally been used for characterisation of cell and tissue surface topography. This paper demonstrates the utility of high-resolution scanning electron microscopy (HRSEM) to diagnostic pathology and cell biology ultrastructural examinations. New SEM applications based on the production of transmission electron microscopy-like (TEM-like) images are now possible with the recent introduction of new technologies such a...
Source: Micron - December 5, 2019 Category: Biology Source Type: research
Response of inflammatory cells to biodegradable ultra-fine grained Mg-based composites
Publication date: Available online 30 November 2019Source: MicronAuthor(s): Mieczyslawa U. Jurczyk, Jakub Żurawski, Przemyslaw K. Wirstlein, Kamil Kowalski, Mieczyslaw JurczykAbstractUltra-fine grained biodegradable Mg-based Mg1Zn1Mn0.3 Zr - HA and Mg4Y5.5Dy0.5 Zr - 45S5 Bioglass composites have shown great medical potential.Two types of these Mg-based biomaterials subjected to different treatments were tested and as shown earlier they are biocompatible.The aim of the study is to determine how much culture media incubated with these ultra-fine trained Mg-based composites can cause inflammatory reactions and /or period...
Source: Micron - December 1, 2019 Category: Biology Source Type: research
Dynamic spring constants of higher resonance modes of uniform and tapered microcantilevers with tip masses
Publication date: Available online 25 November 2019Source: MicronAuthor(s): M.A. MahmoudAbstractA comprehensive data set is presented that covers eigenvalues and dynamic stiffness of width-tapered microcantilevers for a wide range of the taper ratio and tip mass ratios. Closed form expressions are presented, which could help designers and researchers in the MEMS field in general, and atomic force microscopy in particular. (Source: Micron)
Source: Micron - November 26, 2019 Category: Biology Source Type: research
Quartz tuning fork mass change sensing for FIB/SEM technology
Publication date: Available online 21 November 2019Source: MicronAuthor(s): Piotr Kunicki, Magdalena Moczała, Grzegorz Jóźwiak, Paulina Szymanowska, Tomasz Piasecki, Teodor GotszalkAbstractIn this paper we present a metrological method for determination of mass density of focused ion beam induced deposition (FIBID) materials using quartz tuning fork (QTF) mass change sensors. Dimension and density determination of FIBID deposited nanostructures is necessary to develop and reliable and repeatable microfabribrication technology of the highest versatility. The proposed metrological methodology allows to determine mass chan...
Source: Micron - November 21, 2019 Category: Biology Source Type: research
A High Angle Scattering, Stable Amorphous Metal TEM Specimen for Measuring the Information Envelop of Electron Microscopes
Publication date: Available online 19 November 2019Source: MicronAuthor(s): Rodney A. HerringAbstractAn amorphous metal (a-metal) TEM specimen suitable for measuring the information envelop of (S)TEM electron microscopes is presented. Its features include producing high angle electron scattering intensities and having good structural stability compared with commonly used specimens of amorphous carbon (a-C) and Au islands supported on a-C substrate. (Source: Micron)
Source: Micron - November 20, 2019 Category: Biology Source Type: research
Editorial Board
Publication date: January 2020Source: Micron, Volume 128Author(s): (Source: Micron)
Source: Micron - November 19, 2019 Category: Biology Source Type: research
A good combination of strength and ductility of ultra-coarse-grained Cu-Al alloy with coarse-grained surface layer via pre-torsional treatment
In this study, we fabricated an ultra-coarse-grained (UCG) Cu-6 wt.%Al alloy with a coarse-grained (CG) surface layer by surface mechanical attrition treatment. Pre-torsional treatment for 45°, 90° and 180° was conducted on the UCG-CG specimens, and the effects of pre-torsional treatment on the microstructures and mechanical properties of the UCG-CG Cu-6 wt.%Al alloy were systematic investigated. It has been shown that the strength and ductility can be simultaneously enhanced via pre-torsional deformation due to the formation of gradient microstructures.Graphical abstract (Source: Micron)
Source: Micron - November 16, 2019 Category: Biology Source Type: research
High content analysis of granuloma histology and neutrophilic inflammation in adult zebrafish infected with Mycobacterium marinum
Publication date: Available online 13 November 2019Source: MicronAuthor(s): Tina Cheng, Julia Y. Kam, Matt D. Johansen, Stefan H. OehlersAbstractInfection of zebrafish with natural pathogen Mycobacterium marinum is a useful surrogate for studying the human granulomatous inflammatory response to infection by Mycobacterium tuberculosis. The adaptive immune system of the adult stage zebrafish offers an advance on the commonly used embryo infection model as adult zebrafish form granulomas with striking similarities to human-M. tuberculosis granulomas. Here, we present workflows to perform high content analyses of granulomas in...
Source: Micron - November 15, 2019 Category: Biology Source Type: research
Comparative study with scanning electron microscopy on the antennal sensilla of two main castes of Coptotermes formosanus Shiraki (Blattaria:Rhinotermitidae)
Publication date: Available online 13 November 2019Source: MicronAuthor(s): Bing-Xian Fu, Nian-Hang Rong, Jian Hong, Zeng-Rong Zhu, Jian-Chu Mo, Dayu ZhangAbstractSensilla on antennae of the workers and soldiers of Coptotermes formosanus Shiraki were examined by scanning electron microscopy in this study. As the two castes were allocated totally different tasks in the termite colony, we wondered if there was a big difference between their antennae which were recognized as the main sensory appendages of insects. Therefore, detailed information about the morphology, distribution and abundance of various types of sensilla was...
Source: Micron - November 15, 2019 Category: Biology Source Type: research
Determination of viscohyperelastic properties of tubule epithelial cells by an approach combined with AFM nanoindentation and finite element analysis
Publication date: Available online 13 November 2019Source: MicronAuthor(s): Lei Wang, Liguo Tian, Ying Wang, Wenxiao Zhang, Zuobin Wang, Xianping LiuAbstractTubule epithelial cell is a complex element that not only exhibits elasticity behaviour, but also presents nonlinear and time-dependent behaviour during any stage of its life cycle. Responses of tubule epithelial cells to physical stimuli are influenced by their mechanical properties. However, accurately constitution of their mechanical properties is still a challenge and the characterisation mechanism is far from sophisticated. In addition, the particular mechanism th...
Source: Micron - November 15, 2019 Category: Biology Source Type: research
Lippia sidoides and Lippia origanoides essential oils affect the viability, motility and ultrastructure of Trypanosoma cruzi
Publication date: Available online 12 November 2019Source: MicronAuthor(s): Andrezza Raposo Borges de Melo, Taciana Mirely Maciel Higino, Aline Dulce Pitt da Rocha Oliveira, Adriana Fontes, Diego César Nunes da Silva, Maria Carolina Accioly Brelaz de Castro, José Arimatéia Dantas Lopes, Regina Celia Bressan Queiroz de FigueiredoAbstractChagas disease, caused by the protozoan Trypanosoma cruzi, is considered a public health problem. The current chemotherapy for this illness causes serious side effects and its use in the chronic phase of the disease is still controversial. In this sense, the investigation of novel therape...
Source: Micron - November 13, 2019 Category: Biology Source Type: research
Low concentrations of acetylcarvacrol induce drastic morphological damages in ovaries of surviving Rhipicephalus sanguineus sensu lato ticks (Acari: Ixodidae)
Publication date: Available online 8 November 2019Source: MicronAuthor(s): Isaac Filipe Moreira Konig, Marcos Vinícius Silva de Oliveira, Raquel Romano Palmeira Gonçalves, Ana Paula Peconick, Sérgio Scherrer Thomasi, Luís Adriano Anholeto, José Ribamar Lima-de-Souza, Maria Izabel Camargo-Mathias, Rafael Neodini RemedioAbstractRhipicephalus sanguineus sensu lato (s. l.) ticks are targets of acaricidal treatments due to their great veterinary and medical importance. Acetylcarvacrol stands out as a promising acaricidal substance for its increased biocidal activity and stability. Additionally, its toxicity to mammals is r...
Source: Micron - November 9, 2019 Category: Biology Source Type: research
Characterization of age-dependent variability in the flank scales of two scorpaeniformes fishes by applying light and scanning electron microscopy imaging
Publication date: Available online 6 November 2019Source: MicronAuthor(s): Mina Motamedi, Azad Teimori, Vahid Amiri, Majid Askari HesniAbstractThe morphology of scales from four flank regions in two species of Scorpaeniforme fishes of the family Platycephalidae was studied by applying light and scanning electron microscopy, and age-dependent variability of scale structures was discussed. The scales of four flank regions from three size classes in both species were ctenoid. The posterior margin of all the ctenoid scales was formed by two rows of cteni, while the three complete rows of cteni were not observed in the examined...
Source: Micron - November 7, 2019 Category: Biology Source Type: research
Editorial Board
Publication date: December 2019Source: Micron, Volume 127Author(s): (Source: Micron)
Source: Micron - October 19, 2019 Category: Biology Source Type: research
