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Comparative morphological analysis of telson and uropods in Penaeus canaliculatus (Olivier, 1811), Penaeus semisulcatus (De Haan, 1844), and Metapenaeus stebbingi (Nobili, 1904) using scanning electron microscopy and EDX analysis Micron (IF 2.4) Pub Date : 2024-04-01 Ahmed M. Rashwan, Samir A.A. El-Gendy, Mohamed A.M. Alsafy, Seham S. Haddad
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Membrane fluctuations of human red blood cells investigated by the current signal noise in scanning ion conductance microscopy Micron (IF 2.4) Pub Date : 2024-03-28 M. Pellegrino, P. Orsini, E. Tognoni
Human red blood cells show submicron membrane fluctuations (CMFs) that have been mainly studied with optical microscopies. Although the functional role of this phenomenon is still uncertain, the amplitude of membrane fluctuations is considered as an indicator of mechanical resilience to the stress encountered in the capillary beds. We investigate here the membrane fluctuations in red blood cells using
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Evaluation of pore-fracture microstructure of gypsum rock fragments using micro-CT Micron (IF 2.4) Pub Date : 2024-03-17 Filip Košek, Jan Dudák, Veronika Tymlová, Jan Žemlička, Daniela Řimnáčová, Jan Jehlička
This study utilized X-ray micro-computed tomography (micro-CT) to investigate weathered gypsum rocks which can or do serve as a rock substrate for endolithic organisms, focusing on their internal pore-fracture microstructure, estimating porosity, and quantitative comparison between various samples. Examining sections and reconstructed 3D models provides a more detailed insight into the overall structural
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Structure solution and refinement of beam-sensitive nano-crystals Micron (IF 2.4) Pub Date : 2024-03-16 H. Klein, E. Yörük, S. Kodjikian
Radiation sensitive materials are among the most difficult materials to study, even more so if they exist only as nanometer-sized particles, where their size is either intentional because of enhanced properties at the nano-scale or it is unintentional because it is impossible to obtain bigger particles of the same structure. In both cases characterization methods need to be optimized to get the most
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The sperm ultrastructure of Spermophagus kuesteri Schilsky, 1905 (Chrysomelidae, Bruchinae) and considerations on the relationships of Cucujiformia superfamilies Micron (IF 2.4) Pub Date : 2024-03-07 Paulo Henrique Rezende, David Mercati, Pietro Lupetti, Romano Dallai
The sperm ultrastructure of the bean-weevil (Bruchinae) was studied to verify the congruence of the new position of the subfamily within Chrysomelidae. The results indicated a positive answer to the question supporting a close relationship between Chrysomelidae and Curculionidae, a finding confirmed also by molecular data. Moreover, the sperm morphology of , a member of Melyridae (Cleroidea) allowed
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Microscopic chemical characterization of epoxy resin with scanning transmission electron microscopy – electron energy-loss spectroscopy Micron (IF 2.4) Pub Date : 2024-03-07 Hsin-Hui Huang, Tomohiro Miyata, Yohei K. Sato, Teruyasu Mizoguchi, Hiroshi Jinnai, Kaname Yoshida
The structural characterization of epoxy resins is essential to improve the understanding on their structure–property relationship for promising high-performance applications. Among all analytical techniques, scanning transmission electron microscopy–electron energy-loss spectroscopy (STEM–EELS) is a powerful tool for probing the chemical and structural information of various materials at a high spatial
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Orientation-dependent oxidation behavior of Cu under In-situ E-Beam irradiation Micron (IF 2.4) Pub Date : 2024-03-05 Weiwei Xia, Quan An, Lianyang Chen, Ran Cai
Herein, we present an atomic investigation of Cu oxidation along different orientations stimulated by high-energy electron beams (E-Beam) in transmission electron microscopy (TEM). By following the microstructural evolution of the Cu substrate in real time, high-resolution TEM (HRTEM) images reveal an orientation-dependent oxidation mechanism, whereby Cu along [110] zone axis migrates onto the surface
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Propionic acid affects the synaptic architecture of rat hippocampus and prefrontal cortex Micron (IF 2.4) Pub Date : 2024-03-04 Mzia G. Zhvania, Giorgi Lobzhanidze, Nino Pochkhidze, Nadezhda Japaridze, Pavel Tchelidze, Fuad Rzayev, Eldar Gasimov
It is well documented that propionic acid (PPA) produces behavioral, morphological, molecular and immune responses in rats that are characteristic of autism spectrum disorder in humans. However, whether PPA affects the ultrastructure and synaptic architecture of regions of autistic brain has not been adequately addressed. Earlier we show that single intraperitoneal (IP) injection of PPA (175 mg/kg)
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Recent developments in denoising medical images using deep learning: An overview of models, techniques, and challenges Micron (IF 2.4) Pub Date : 2024-03-02 Nahida Nazir, Abid Sarwar, Baljit Singh Saini
Medical imaging plays a critical role in diagnosing and treating various medical conditions. However, interpreting medical images can be challenging even for expert clinicians, as they are often degraded by noise and artifacts that can hinder the accurate identification and analysis of diseases, leading to severe consequences such as patient misdiagnosis or mortality. Various types of noise, including
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Examining cut mark residue with SEM to identify metal tool use: An experimental study Micron (IF 2.4) Pub Date : 2024-02-26 Francesc Marginedas, Josep Maria Vergès, Palmira Saladié, Antonio Rodríguez-Hidalgo
In this manuscript, we explore the potential of studying metal residues in cut marks generated by copper and bronze knives. The method was developed in the forensic sciences for use with modern metals in order to identify microscopic particles of metal tools on bone surfaces. However, the study of residues in archaeological materials can be challenging due to the ways in which the bone remains may
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EBSD investigation of microstructure and microtexture evolution on additively manufactured TiC-Fe based cermets—Influence of multiple laser scanning Micron (IF 2.4) Pub Date : 2024-02-23 H.S. Maurya, R.J. Vikram, R. Kumar, R. Rahmani, K. Juhani, F. Sergejev, K.G. Prashanth
Sustainable TiC-Fe-based cermets have been fabricated by adopting an Additive Manufacturing route based on laser powder bed fusion technology (L-PBF). The objective is to produce crack-free cermet components by employing novel multiple laser scanning techniques with variations in laser process parameters. Electron backscatter diffraction analysis (EBSD) was used to study the microstructure and microtexture
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Structural and mechanical characterization of the hoof in Mongolian equids Micron (IF 2.4) Pub Date : 2024-02-21 Nuo Chen, Xin Yang, Shucai Xu, Jiafeng Song
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Comparative study of ion milling techniques for the preparation of ceramic fibers in transmission electron microscopy Micron (IF 2.4) Pub Date : 2024-02-20 Clémentine Fellah, Bérangère Lesaint
Sample preparation, essential to any analysis, remains an under-documented step. Preparation methods for transmission electron microscopy (TEM) are complex and lead to artifacts that need to be identified to avoid wrong conclusions about the sample's microstructure. Ion milling techniques are increasingly becoming the reference techniques to prepare thin foils. The possibilities of different ion beam
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A comparative approach employing microCT for the analysis of Cenozoic foraminifera from the Brazilian carbonate equatorial platform Micron (IF 2.4) Pub Date : 2024-02-15 Olga Oliveira De Araújo, Orangel Aguilera, Dayana Alvarado Sierra, Beatriz Teixeira Guimarães, Vinicius Kutter, Ana Paula Linhares, Daniel Lima, Julianny Dos Santos Silva, Ricardo Tadeu Lopes
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Novel technology for controlled fabrication of aperture cantilever sensors for scanning near-field optical microscopy Micron (IF 2.4) Pub Date : 2024-02-14 A.S. Kolomiytsev, A.V. Kotosonova, O.I. Il’in, A.V. Saenko, A.V. Shelaev, A.V. Baryshev
This paper presents a new technique for forming SNOM (Scanning Near-Field Optical Microscopy) cantilevers. The technique is based on the continuous growth of a conical hollow tip using local ion-induced carbon deposition on standard tipless cantilever chips. This method offers precise control of the geometric parameters of the cantilever's tip, including the angle of the tip, the probe's curvature
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Insight into structural and chemical profile / composition of powdered enamel and dentine in different types of permanent human teeth Micron (IF 2.4) Pub Date : 2024-02-08 Katarzyna Sarna-Boś, Patrycja Boguta, Monika Szymańska-Chargot, Kamil Skic, Artur Zdunek, Piotr Stachurski, Marin Vodanovic, Renata Chałas
Research on the structure and chemical composition of dental tissues allows for the optimisation of materials used in the treatment and care of teeth. Understanding pathological processes occurring in dental tissues and their reactions to various substances, including dental materials, are crucial for the development of new dental technologies.
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A review of recent advancement in covalent organic framework (COFs) synthesis and characterization with a focus on their applications in antibacterial activity Micron (IF 2.4) Pub Date : 2024-02-02 F. Al-dolaimy, Shelesh Krishna Saraswat, Baydaa Abed Hussein, Uday Abdul-Reda Hussein, Shakir Mahmood Saeed, Ashwaq Talib Kareem, Alzahraa S. Abdulwahid, Thair L. Mizal, Khursheed Muzammil, Ahmed Hussien Alawadi, Ali Alsalamy, Farah Hussin, Mazin Hadi Kzarb
The primary objective of this review is to present a comprehensive examination of the synthesis, characterization, and antibacterial applications of covalent organic frameworks (COFs). COFs represent a distinct category of porous materials characterized by a blend of advantageous features, including customizable pore dimensions, substantial surface area, and adaptable chemical properties. These attributes
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Localization and quantitative distribution of a chromatin structural protein Topoisomerase II on plant chromosome using HVTEM and UHVTEM Micron (IF 2.4) Pub Date : 2024-02-01 Channarong Sartsanga, Rinyaporn Phengchat, Toshiyuki Wako, Kiichi Fukui, Nobuko Ohmido
Topoisomerase II (TopoII) is an essential structural protein of the metaphase chromosome. It maintains the axial compaction of chromosomes during metaphase. It is localized at the axial region of chromosomes and accumulates at the centromeric region in metaphase chromosomes. However, little is known about TopoII localization and distribution in plant chromosomes, except for several publications. We
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Measuring electrical properties in semiconductor devices by pixelated STEM and off-axis electron holography (or convergent beams vs. plane waves). Micron (IF 2.4) Pub Date : 2024-01-29 David Cooper, Lucas Bruas, Matthew Bryan, Victor Boureau
We demonstrate the use of both pixelated differential phase contrast (DPC) scanning transmission electron microscopy (STEM) and off-axis electron holography (EH) for the measurement of electric fields and assess the advantages and limitations of each technique when applied to technologically relevant samples. Three different types of samples are examined, firstly a simple highly-doped Si junction.
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Dimple Grinding Coupled with Optical Microscopy for Porosity Analysis of Metallic Coatings Micron (IF 2.4) Pub Date : 2024-01-25 H. Hu, A. He, D. Aasen, S. Shukla, D.G. Ivey
Dimple grinding is one of the steps used in a common method of preparing samples for transmission electron microscopy (TEM); the TEM sample preparation process also involves ion beam sputtering after the dimpling stage. During dimpling, a spherical depression is machined into the sample, leaving a thicker rim to support and facilitate sample handling. In this paper, an alternative application for dimple
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A calculation approach for current density distribution evolution of secondary electrons using differential algebra method Micron (IF 2.4) Pub Date : 2024-01-18 Hangfeng Hu, Meishan Li, Jintao Hu, Fu Liu, Yongfeng Kang
In this study, the concept of the current density distribution (CDD) evolution of secondary electron (SE) beam is presented, and a novel approach using the differential algebra (DA) method is proposed to calculate the CDD evolution of the SE beam. Firstly, the emitted SE beam is divided into some beamlets in polar and azimuth angle directions. For each beamlet only one reference trajectory is traced
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Morphology of the male reproductive system and spermatozoa of Mahanarva fimbriolata (Stål, 1854) (Hemiptera: Cercopidae) with evidence of a spermatostyle in the sperm conjugation Micron (IF 2.4) Pub Date : 2024-01-09 Rômulo Fagundes Sodré, Luci Boa Nova Coelho, Paulo Henrique Rezende, Dayvson Ayala Costa, Glenda Dias, José Lino-Neto
Changes in harvesting methods in the early 1990s led to Mahanarva fimbriolata becoming the most prevalent pest in sugarcane plantations. Encouraged by the scarcity of research on the reproductive system and spermatology of Auchenorrhyncha, we provide a detailed description of the male reproductive system and spermatozoa of this cercopid. This will not only aid in taxonomic purposes but also help in
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Uncovering hidden treasures: Mapping morphological changes in the differentiation of human mesenchymal stem cells to osteoblasts using deep learning Micron (IF 2.4) Pub Date : 2024-01-08 Faisal Quadri, Mano Govindaraj, Soja Soman, Niti M. Dhutia, Sanjairaj Vijayavenkataraman
Deep Learning (DL) is becoming an increasingly popular technology being employed in life sciences research due to its ability to perform complex and time-consuming tasks with significantly greater speed, accuracy, and reproducibility than human researchers – allowing them to dedicate their time to more complex tasks. One potential application of DL is to analyze cell images taken by microscopes. Quantitative
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Review of reinforcement learning applications in segmentation, chemotherapy, and radiotherapy of cancer Micron (IF 2.4) Pub Date : 2023-12-25 Rishi Khajuria, Abid Sarwar
Owing to early diagnosis and treatment of cancer as a prerequisite in recent times, the role of machine learning has been increased substantially. The mathematically powerful and optimized solutions for the detection and cure of cancer are constantly being explored and novel models based upon standard algorithms are also being developed. Leveraging one such solution is Reinforcement Learning (RL),
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A simple, static and stage mounted direct electron detector based electron backscatter diffraction system Micron (IF 2.4) Pub Date : 2023-12-22 Tianbi Zhang, T. Ben Britton
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Rapid scanning method for SICM based on autoencoder network Micron (IF 2.4) Pub Date : 2023-12-21 Wenlin Wu, Xiaobo Liao, Lei Wang, Siyu Chen, Jian Zhuang, Qiangqiang Zheng
Scanning Ion Conductance Microscopy (SICM) enables non-destructive imaging of living cells, which makes it highly valuable in life sciences, medicine, pharmacology, and many other fields. However, because of the uncertainty retrace height of SICM hopping mode, the time resolution of SICM is relatively low, which makes the device fail to meet the demands of dynamic scanning. To address above issues
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Optimized procedure for conventional TEM sample preparation using birefringence Micron (IF 2.4) Pub Date : 2023-12-14 Aleksander Brozyniak, Karin Stadlmann, Philipp Kürnsteiner, Heiko Groiss
Specimens for quality transmission electron microscopy (TEM) analyses must fulfil a range of requirements, which demand high precision during the prior preparation process. In this work, an optimized procedure for conventional TEM specimen preparation is presented that exploits the thickness-dependence of interference colors occurring in birefringent materials. It facilitates the correct estimation
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Voxel dose-limited resolution for thick beam-sensitive specimens imaged in a TEM or STEM Micron (IF 2.4) Pub Date : 2023-12-14 R.F. Egerton
The resolution limit imposed by radiation damage is quantified in terms of a voxel dose-limited resolution (DLR), applicable to small features within a thick specimen. An analytical formula for this DLR is derived and applied to bright-field mass-thickness contrast from organic (polymer or biological) specimens of thickness between 400 nm and 20 µm. For a permissible dose of 330 MGy (typical of frozen-hydrated
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AB-PLS-DA: Pansharpening tailored for scanning electron microscopy and energy-dispersive X-ray spectrometry multimodal fusion Micron (IF 2.4) Pub Date : 2023-12-13 Tuomas Sihvonen, Zina-Sabrina Duma, Satu-Pia Reinikainen
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Effect of resveratrol on SH-SY5Y cells studied by atomic force microscopy Micron (IF 2.4) Pub Date : 2023-12-13 Jiayao Yuan, Zuobin Wang, Jianjun Dong, Mingyan Gao, Fan Yang, Hao Sun
In this paper, the effects of resveratrol on the viability, morphology, biomechanics and bioelectricity of SH-SY5Y cells were studied by atomic force microscopy. MTT assay showed that resveratrol had a dose effect on SH-SY5Y cells, and its activity was related to drug concentration and drug action time. With the increase of resveratrol concentration or the extension of action time, the activity of
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Surface morphology and microstructure of Bauhinia variegata L. flowers and leaves Micron (IF 2.4) Pub Date : 2023-12-09 Yan Xu
The main purpose of this research is to characterize the wettability and microstructure of Bauhinia variegata L. flowers and leaves, aiming to provide a biological template for the preparation of hydrophobic surfaces. The contact angle test results show that the surfaces of flowers and leaves are hydrophobic, and the contact angle of the adaxial side and abaxial side of the leaves is highly significant
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Micrometer insights into Nepeta genus: Pollen micromorphology unveiled Micron (IF 2.4) Pub Date : 2023-11-29 Shaista Jabeen, Muhammad Zafar, Mushtaq Ahmad, M. Ajmal Ali, Mohamed S. Elshikh, Trobjon Makhkamov, Oybek Mamarakhimov, Akramjon Yuldashev, Khislat Khaydarov, Yusufjon Gafforov, Babir Baysunov, Afat O. Mammadova, Laziza Botirova, Shazia Sultana, Salman Majeed, , Shabir Ahmad, Aqsa Abid, Abdurashid Rahmatov
This study provides a comprehensive pollen micromorphology within the Nepeta genus, revealing intricate details about the pollen grains' structure and characteristics. The findings shed light on the evolutionary and taxonomical aspects of this plant genus, offering valuable insights for botanists and researchers studying Nepeta species. The pollen grains of 18 Nepeta species were studied using scanning
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Effect of curcumin on malignant hepatocytes and mitochondria studied using atomic force microscopy Micron (IF 2.4) Pub Date : 2023-11-22 Shengli Zhang, Ying Wang, Bowei Wang, Yi Zeng, Jiani Li, Xingyue Wang, Cuihua Hu, Zhankun Weng, Zuobin Wang
Mitochondria are emerging as potential targets for the cancer treatment. In this study, the effects of curcumin on the activity, migration, and mitochondrial membrane potential (MMP) of malignant hepatocytes (SMMC-7721 cells) were determined using cell viability, migration, and MMP assays. Changes in the morphology and biomechanics of SMMC-7721 cells and their mitochondria were studied using both optical
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Exit wave function reconstruction from two defocus images using neural network Micron (IF 2.4) Pub Date : 2023-11-10 Ziyi Meng, Wenquan Ming, Yutao He, Ruohan Shen, Jianghua Chen
Wave function reconstruction from one or two defocus images is promising for live atomic resolution imaging in transmission electron microscopy. However, a robust and accurate reconstruction method we still need more attention. Here, we present a neural-network-based wave function reconstruction method, EWR-NN, that enables accurate wave function reconstruction from only two defocus images. Results
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Achieving an improved performance in double-sided friction stir weld joints by adjusting the welding conditions during the passes of AA6061-T6 aluminium alloy Micron (IF 2.4) Pub Date : 2023-11-07 Ankit Thakur, Varun Sharma, Navdeep Minhas, Rajeev Verma
The present study aims at investigating the effect of interaction between the process parameters of each weld pass (1st pass and 2nd pass) to improve the joint performance during the double-sided friction stir welded joints of AA6061-T6 aluminium alloy. Experimental designs were conducted following a design matrix developed using response surface methodology to investigate the impact on the microstructural
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Sample thickness affects contrast and measured shape in TEM images and in electron tomograms Micron (IF 2.4) Pub Date : 2023-11-07 Misa Hayashida, Jun Yamasaki, Marek Malac
We investigated the effect of nanoparticle (NP) image broadening and its contrast change dependence on a support matrix thickness in a transmission electron microscope (TEM). We measured the effect of NP size and atomic number on its image broadening. Based on the experimental TEM images we generated tomograms of NPs on four types of support matrix. The measured shape aspect ratio of the NPs in such
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Size-dependent and sex-specific negative effects of micro- and nano-sized polystyrene particles in the terrestrial invertebrate model Drosophila melanogaster Micron (IF 2.4) Pub Date : 2023-10-21 Anna Z. Urbisz, Karol Małota, Łukasz Chajec, Marta K. Sawadro
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The gemological characteristics of yellow seawater bead-cultured pearl farming in Beihai City, southern China Micron (IF 2.4) Pub Date : 2023-10-17 Xuejun Yan, Xiaobo Liu, Wubang Zhou, Dekun Zhou, Peijun Liu, Tao Chen, Jun Yan
In this study, we comparatively investigated the gemological and fine-microstructural characteristics of yellow seawater pearls cultured in Pinctada fucata martensii using X-ray computed microtomography (μ-CT) analysis, ultraviolet-visible (UV−Vis) reflectance spectroscopy, field emission scanning electron microscope (FE-SEM), Raman and photoluminescence (PL) spectroscopy, and Laser ablation−inductively
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Morphology and ultrastructure of the colleterial glands in Myzinum flower wasps (Tiphiidae, Hymenoptera) Micron (IF 2.4) Pub Date : 2023-10-19 Marjorie da Silva, Cíntia Eleonora Lopes Justino, Fernando Henrique Carnimeo, Fernando Barbosa Noll, Johan Billen
The strategies used by females to ensure the survival of their offspring are one of the key elements in insect reproductive biology. Ectoparasitoid hymenopterans, such as tiphiid wasps, use their ovipositor to deliver a single egg on the host body, where the larva develops. Here we describe the colleterial glands in females of two species of Myzinum and discuss the homology with other glands among
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Cellular evidence of communication strategies for small intestinal high endothelial cells: Ultrastructural insights of nano-scale exosomes and autophagy Micron (IF 2.4) Pub Date : 2023-10-18 Ping Hao, Wen Yin, Xi Chen, Shuangshuang Qin, Yue Yu, Yuan Yuan, Xiaoyu Quan, Bing Hu, Shouhai Chen, Yi Wu
Although several immune related cells of small intestine play an essential role in the intestinal homeostasis. However, information related to ultrastructural evidence of Nano-scale exosomes-multivesicular bodies and autophagic pathway in the high endothelial cells (HECs) of the small intestine in laying birds is still ambiguous. In present study, the HECs secreted the early endosome (ee), late endosome
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Quantifying colors at micrometer scale by colorimetric microscopy (C-Microscopy) approach Micron (IF 2.4) Pub Date : 2023-10-14 Benedykt R. Jany
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Comparison of two methods for determination of crystal orientation using two Kikuchi pairs in electron diffraction patterns Micron (IF 2.4) Pub Date : 2023-10-10 Xing-Zhong Li
Kikuchi diffraction pattern analysis is one of the essential techniques of transmission electron microscopy used in materials science. For instance, one important application is its use in crystal orientation determination. During the development of SAKI5 software for the simulation and analysis of Kikuchi patterns, two methods in the literature for crystal orientation determination from two independent
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Multi-scale pore network modelling to evaluate connectivity in ceramic composites Micron (IF 2.4) Pub Date : 2023-10-13 Joan Widin Schroeder, Matthew J. Burch, Mario A. Perez
Complex morphologies, such as open or connected feature networks, are present in a wide variety of materials. Characteristics of these networks can impact key performance attributes of the materials themselves, affecting transport properties such as thermal conductivity. Therefore, it is critical to analyze the microstructure of these materials to gain a better understanding of the fundamental characteristics
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Morphological and fractal features of cancer cells anchored on composite layers based on magnesium-doped hydroxyapatite loaded in chitosan matrix Micron (IF 2.4) Pub Date : 2023-10-04 Ştefan Ţălu, Robert S. Matos, Henrique Duarte da Fonseca Filho, Daniela Predoi, Simona Liliana Iconaru, Carmen Steluţa Ciobanu, Liliana Ghegoiu
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Quantification of golgi dispersal and classification using machine learning models Micron (IF 2.4) Pub Date : 2023-10-01 Rutika Sansaria, Krishanu Dey Das, Alwin Poulose
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The sperm structure of the Scraptiidae (Coleoptera; Tenebrionoidea) Micron (IF 2.4) Pub Date : 2023-09-26 Paulo Henrique Rezende, David Mercati, Pietro Lupetti, Dallai Romano
The sperm ultrastructure of two members of the Scraptiidae Anaspis pulicaria and A. lurida was studied. The results confirm the general organization of the sperm in the superfamily Tenebrionoidea. The sperm bundles at the end of the spermiogenesis show the same peculiar antiparallel distribution at the two opposite poles of the germ cyst, observed in other Tenebrionoidea. The sperm have a bi-layered
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Effect of Nano-selenium on exosomes secretion associated with sperm maturation within the epididymis Micron (IF 2.4) Pub Date : 2023-09-22 Chuang Zhou, Hua Zhang, Yi Wu, Nisar Ahmed
Selenium is commonly used as a supplement in the poultry diet and plays an important role in male fertility. However, the effect of selenium nanoparticles (Se-NPs) on exosome secretion associated with spermatozoa in the epididymis is largely unknown. H&E staining, Immunohistochemistry, Immunofluorescence and Western blot were performed to study the effect of Se-NPs on exosomes secretion associated
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A dynamic parallel image acquisition method for slide scanning process Micron (IF 2.4) Pub Date : 2023-09-09 Bowen Zhong, Zhan Liao, Xiaopeng Hao, Junjie Hu, Lining Sun
Automated microscope systems have played an important role in the screening of numerous diseases. However, it is a very time-consuming process to continuously acquire images under the high magnification objective lens. This paper proposes a dynamic parallel image acquisition method, which can greatly improve image acquisition speed. Due to the relative motion between the x-y stage and the camera, some
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Preparing metallic bulk samples for transmission electron microscopy analysis via laser ablation in an acidic liquid Micron (IF 2.4) Pub Date : 2023-09-02 Mohammad Jafari Eskandari, Masoud Araghchi
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Colleters in leaves of Mespilus germanica L. (Rosaceae): Micromorphology, histochemistry and fluorescence Micron (IF 2.4) Pub Date : 2023-09-06 T.Kh. Kumachova, A.V. Babosha, A.S. Ryabchenko, A.S. Voronkov
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Durability assessment of hydrogel mountings for contrast-enhanced micro-CT Micron (IF 2.4) Pub Date : 2023-08-29 Torben Hildebrand, Jan Novak, Liebert Parreiras Nogueira, Aldo Roberto Boccaccini, Håvard Jostein Haugen
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Study of a bioinspired rigid-flexible coupling structure based on dragonfly wing by optical/electron microscopy and finite element analysis Micron (IF 2.4) Pub Date : 2023-09-01 Pengyu Lin, Chengtao Wang, Yun Liu, Luquan Ren, Zhihui Zhang
In this work, mechanical properties of veins and membrane of dragonfly wing were studied by means of optical/electron microscopy, tensile test and nano-indentation. It indicates that veins exhibit significantly higher strength and elastic modulus, as compared with membrane. Furthermore, finite element analysis (FEA) demonstrates that the fluctuation of Von Mises stress and displacement between varying
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Microstructural analysis of slag properties associated with calcite precipitation due to passive CO2 mineralization Micron (IF 2.4) Pub Date : 2023-08-30 Faisal W.K. Khudhur, John M. MacDonald, Luke Daly, Alice Macente, Liene Spruženiece, Sammy Griffin, Claire Wilson
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Energy loss of charged particles in anisotropic 2D materials using the oscillator model Micron (IF 2.4) Pub Date : 2023-08-12 Silvina Segui, Juana L. Gervasoni, Néstor R. Arista, Zoran L. Mišković
We apply the oscillator model to study the energy loss processes of external charged particles interacting with a 2D material characterized by an anisotropic conductivity tensor. We model the material as a monolayer of harmonic oscillators, with anisotropic electronic vibration modes. We focus on the cases of parallel and perpendicular trajectories of the external particle, and we obtain analytical
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Effect of self and extrinsic encapsulation on electron resilience of porous 2D polymer nanosheets Micron (IF 2.4) Pub Date : 2023-08-11 David Mücke, Martin Linck, Giulio Guzzinati, Heiko Müller, Barnaby D.A. Levin, Benjamin E. Bammes, Raúl González Brouwer, Fedor Jelezko, Haoyuan Qi, Ute Kaiser
Despite the exceptional resolution in aberration-corrected high-resolution transmission electron microscope (AC-HRTEM) images of inorganic two-dimensional (2D) materials, achieving high-resolution imaging of organic 2D materials remains a daunting challenge due to their low electron resilience. Optimizing the critical dose (the electron exposure, the material can accept before it is noticeably damaged)
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CuZn-superoxide dismutase is differentially modified in localization and expression by three abiotic stresses in miniature rose bushes Micron (IF 2.4) Pub Date : 2023-08-10 Philippe Michonneau, Pierrette Fleurat-Lessard, Gabriel Roblin, Emile Béré
Three abiotic stresses, copper application (CS), mechanical rubbing (MS) and water deprivation (WS) applied on miniature rose bushes specifically activate the expression of the CuZn-Superoxide dismutase (SOD). The Cu/Zn-SOD protein immunodetected in the 4th internode was shown engaged in lignification in phloem, cambium and xylem cells. The SOD occurrence was detailed in the vessel associated cells
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Indentation of living cells by AFM tips may not be what we thought! Micron (IF 2.4) Pub Date : 2023-08-10 Ophélie Thomas- -Chemin, Childérick Séverac, Emmanuelle Trévisiol, Etienne Dague
The models used to calculate Young's moduli from atomic force microscopy (AFM) force curves consider the shape of the indentation. It is then assumed that the geometry of the indentation is identical to the geometry of the indenter, which has been verified for hard materials (E > 1 MPa). Based on this assumption, the force curves calculated by these models, for the same object with a given Young's
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Reduction of alcohol-induced mitochondrial damage with ginsenoside Rg1 studied by atomic force microscopy Micron (IF 2.4) Pub Date : 2023-08-02 Shengli Zhang, Yi Zeng, Bowei Wang, Jiani Li, Cuihua Hu, Zhankun Weng, Zuobin Wang
The quantification of mitochondrial morphology and mechanical properties is useful for the diagnosis and treatment of mitochondrial and alcoholic liver disease. In this study, the effects of ginsenoside Rg1 (G-Rg1) on the morphology and mechanical properties of mitochondria that had suffered alcohol-induced damage were investigated under near-physiological conditions. Additionally, the morphological