Subjects -> INSTRUMENTS (Total: 62 journals)
Showing 1 - 16 of 16 Journals sorted alphabetically
Annali dell'Istituto e Museo di storia della scienza di Firenze     Hybrid Journal  
Applied Mechanics Reviews     Full-text available via subscription   (Followers: 27)
Bulletin of Social Informatics Theory and Application     Open Access   (Followers: 1)
Computational Visual Media     Open Access   (Followers: 4)
Devices and Methods of Measurements     Open Access  
Documenta & Instrumenta - Documenta et Instrumenta     Open Access  
EPJ Techniques and Instrumentation     Open Access  
European Journal of Remote Sensing     Open Access   (Followers: 9)
Experimental Astronomy     Hybrid Journal   (Followers: 39)
Flow Measurement and Instrumentation     Hybrid Journal   (Followers: 18)
Geoscientific Instrumentation, Methods and Data Systems     Open Access   (Followers: 4)
Geoscientific Instrumentation, Methods and Data Systems Discussions     Open Access   (Followers: 1)
IEEE Journal on Miniaturization for Air and Space Systems     Hybrid Journal   (Followers: 2)
IEEE Sensors Journal     Hybrid Journal   (Followers: 103)
IEEE Sensors Letters     Hybrid Journal   (Followers: 3)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Imaging & Microscopy     Hybrid Journal   (Followers: 9)
InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan     Open Access  
Instrumentation Science & Technology     Hybrid Journal   (Followers: 7)
Instruments and Experimental Techniques     Hybrid Journal   (Followers: 1)
International Journal of Applied Mechanics     Hybrid Journal   (Followers: 7)
International Journal of Instrumentation Science     Open Access   (Followers: 40)
International Journal of Measurement Technologies and Instrumentation Engineering     Full-text available via subscription   (Followers: 2)
International Journal of Metrology and Quality Engineering     Full-text available via subscription   (Followers: 4)
International Journal of Remote Sensing     Hybrid Journal   (Followers: 274)
International Journal of Remote Sensing Applications     Open Access   (Followers: 43)
International Journal of Sensor Networks     Hybrid Journal   (Followers: 4)
International Journal of Testing     Hybrid Journal   (Followers: 1)
Journal of Applied Remote Sensing     Hybrid Journal   (Followers: 83)
Journal of Astronomical Instrumentation     Open Access   (Followers: 3)
Journal of Instrumentation     Hybrid Journal   (Followers: 32)
Journal of Instrumentation Technology & Innovations     Full-text available via subscription   (Followers: 1)
Journal of Medical Devices     Full-text available via subscription   (Followers: 5)
Journal of Medical Signals and Sensors     Open Access   (Followers: 3)
Journal of Optical Technology     Full-text available via subscription   (Followers: 5)
Journal of Sensors and Sensor Systems     Open Access   (Followers: 11)
Journal of Vacuum Science & Technology B     Hybrid Journal   (Followers: 2)
Jurnal Informatika Upgris     Open Access  
Measurement : Sensors     Open Access   (Followers: 3)
Measurement and Control     Open Access   (Followers: 36)
Measurement Instruments for the Social Sciences     Open Access  
Measurement Science and Technology     Hybrid Journal   (Followers: 7)
Measurement Techniques     Hybrid Journal   (Followers: 3)
Medical Devices & Sensors     Hybrid Journal  
Medical Instrumentation     Open Access  
Metrology and Measurement Systems     Open Access   (Followers: 6)
Microscopy     Hybrid Journal   (Followers: 8)
Modern Instrumentation     Open Access   (Followers: 50)
Optoelectronics, Instrumentation and Data Processing     Hybrid Journal   (Followers: 4)
PFG : Journal of Photogrammetry, Remote Sensing and Geoinformation Science     Hybrid Journal  
Photogrammetric Engineering & Remote Sensing     Full-text available via subscription   (Followers: 29)
Remote Sensing     Open Access   (Followers: 54)
Remote Sensing Applications : Society and Environment     Full-text available via subscription   (Followers: 8)
Remote Sensing of Environment     Hybrid Journal   (Followers: 93)
Remote Sensing Science     Open Access   (Followers: 24)
Review of Scientific Instruments     Hybrid Journal   (Followers: 22)
Sensors and Materials     Open Access   (Followers: 2)
Solid State Nuclear Magnetic Resonance     Hybrid Journal   (Followers: 3)
Standards     Open Access  
Transactions of the Institute of Measurement and Control     Hybrid Journal   (Followers: 13)
Труды СПИИРАН     Open Access  
Similar Journals
Journal Cover
Microscopy
Journal Prestige (SJR): 0.906
Citation Impact (citeScore): 2
Number of Followers: 8  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2050-5698 - ISSN (Online) 2050-5701
Published by Oxford University Press Homepage  [413 journals]
  • IN THIS ISSUE
    • Pages: 1 - 4
      PubDate: Thu, 03 Dec 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa069
      Issue No: Vol. 69, No. 6 (2020)
       
  • Research on nanoprocess of non-equilibrium materials by in situ ultra-high
           voltage electron microscopy
    • Authors: Yasuda H; Sato K, Mori H.
      Pages: 331 - 339
      Abstract: AbstractUltra-high voltage electron microscopy is useful for research utilizing high-penetration thickness of electron beam, in situ observation, or irradiation effects by the particle characteristics of electrons. In this review, the importance of non-equilibrium materials science research by a combination with irradiation effects and in situ observation is shown, and examples of some research are introduced. For example, crystal-amorphous-crystalline phase transition in intermetallic compounds, non-equilibrium phase transition in pure metallic nanoparticles and nucleation and growth process of electron irradiation-induced crystallization in amorphous nanoparticles will be discussed. Finally, we want to suggest the importance of exploring non-equilibrium materials science based on dynamic structures which has been unexplored.
      PubDate: Tue, 21 Jul 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa042
      Issue No: Vol. 69, No. 6 (2020)
       
  • Improvements in fundamental performance of in-liquid frequency modulation
           atomic force microscopy
    • Authors: Fukuma T.
      Pages: 340 - 349
      Abstract: AbstractIn-liquid frequency modulation atomic force microscopy (FM-AFM) has been used for visualizing subnanometer-scale surface structures of minerals, organic thin films and biological systems. In addition, three-dimensional atomic force microscopy (3D-AFM) has been developed by combining it with a three-dimensional (3D) tip scanning method. This method enabled the visualization of 3D distributions of water (i.e. hydration structures) and flexible molecular chains at subnanometer-scale resolution. While these applications highlighted the unique capabilities of FM-AFM, its force resolution, speed and stability are not necessarily at a satisfactory level for practical applications. Recently, there have been significant advancements in these fundamental performances. The force resolution was dramatically improved by using a small cantilever, which enabled the imaging of a 3D hydration structure even in pure water and made it possible to directly compare experimental results with simulated ones. In addition, the improved force resolution allowed the enhancement of imaging speed without compromising spatial resolution. To achieve this goal, efforts have been made for improving bandwidth, resonance frequency and/or latency of various components, including a high-speed phase-locked loop (PLL) circuit. With these improvements, now atomic-resolution in-liquid FM-AFM imaging can be performed at ∼1 s/frame. Furthermore, a Si-coating method was found to improve stability and reproducibility of atomic-resolution imaging owing to formation of a stable hydration structure on a tip apex. These improvements have opened up new possibilities of atomic-scale studies on solid-liquid interfacial phenomena by in-liquid FM-AFM.
      PubDate: Tue, 11 Aug 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa045
      Issue No: Vol. 69, No. 6 (2020)
       
  • Improved unroofing protocols for cryo-electron microscopy, atomic force
           microscopy and freeze-etching electron microscopy and the associated
           mechanisms
    • Authors: Morone N; Usukura E, Narita A, et al.
      Pages: 350 - 359
      Abstract: AbstractUnroofing, which is the mechanical shearing of a cell to expose the cytoplasmic surface of the cell membrane, is a unique preparation method that allows membrane cytoskeletons to be observed by cryo-electron microscopy, atomic force microscopy, freeze-etching electron microscopy and other methods. Ultrasound and adhesion have been known to mechanically unroof cells. In this study, unroofing using these two means was denoted sonication unroofing and adhesion unroofing, respectively. We clarified the mechanisms by which cell membranes are removed in these unroofing procedures and established efficient protocols for each based on the mechanisms. In sonication unroofing, fine bubbles generated by sonication adhered electrostatically to apical cell surfaces and then removed the apical (dorsal) cell membrane with the assistance of buoyancy and water flow. The cytoplasmic surface of the ventral cell membrane remaining on the grids became observable by this method. In adhesion unroofing, grids charged positively by coating with Alcian blue were pressed onto the cells, thereby tightly adsorbing the dorsal cell membrane. Subsequently, a part of the cell membrane strongly adhered to the grids was peeled from the cells and transferred onto the grids when the grids were lifted. This method thus allowed the visualization of the cytoplasmic surface of the dorsal cell membrane. This paper describes robust, improved protocols for the two unroofing methods in detail. In addition, micro-unroofing (perforation) likely due to nanobubbles is introduced as a new method to make cells transparent to electron beams.
      PubDate: Sat, 23 May 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa028
      Issue No: Vol. 69, No. 6 (2020)
       
  • Development of NMIJ CRM 5207-a tungsten dot-array for the image sharpness
           evaluation in scanning electron microscopy – structure evaluation and
           determination of dot-pitch
    • Authors: Kumagai K; Kurokawa A.
      Pages: 360 - 370
      Abstract: AbstractWe have developed a new certified reference material (CRM) for image sharpness evaluation and magnification calibration for scanning electron microscopy (SEM). Designed to be suitable for the image sharpness evaluation by the derivative method, the CRM has nanoscale tungsten dot-array structure fabricated on silicon substrate, which gives steep contrast transition from the dot to the substrate in SEM image. The pitch of the dot-array was SI-traceably measured as a specified value with relative expanded uncertainty ($k=2$) of ~1.3%, which can be utilized for the magnification calibration of SEM. Since specimens, as one of the image formation parameters, easily affect image sharpness value, our CRM, as a ‘pinned specimen’, will play an important role to achieve robust and stable image sharpness measurement system.
      PubDate: Mon, 08 Jun 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa030
      Issue No: Vol. 69, No. 6 (2020)
       
  • SEM-EDX and FTIR analysis of archaeological ceramic potteries from
           southern Italy
    • Authors: Dey T; Carter J, Swift K.
      Pages: 371 - 380
      Abstract: AbstractSherds of ancient ceramics potteries, dating back to the seventh century BC and excavated from southern Italy, were analyzed in terms of microstructure and porosity (SEM), elemental composition (EDX), chemical bonding and mineralogical components (FTIR) in order to establish correlation with firing temperature, firing condition and provenance. Si/Al ratio from EDX analysis showed three major categories of raw materials (illite/montmorillonite, kaolinite and mullite), suggesting difference in provenance. Uniformly sized silica nanoparticle (0.7 μm diameter) and trace amount of silver are being reported for the first time in one sample. Anorthite mineral and quartz inclusion was detected by FTIR in certain samples. All samples showed a prominent band for Si-O stretching, which shifted from 1062 cm−1, broadened and appeared as doublet, relative to processing temperature. FTIR results proved incomplete dihydroxylation and undissociated carbonate in three samples, indicating a firing temperature of 700–800°C, whereas other samples were fired above 900°C. Only one sample among these three showed bloating pores in between interconnecting glassy matrix in SEM image, indicating a firing temperature of 1100–1200°C. The absence of magnetite along with significant Fe and Mn content indicated the formation of jacobsite, an iron manganese spinel complex, MnFe2O4, which is responsible for the black gloss effect in two particular samples and can be further confirmed by XRD. The presence of numerous small pores in SEM image of one of these two samples (1.2 μm diameter) was indicative of extended vitrification at higher temperature than the other one. However, magnetite was responsible for black gloss effect in two other samples, proving difference in provenance. Therefore, SEM-EDX and FTIR results can offer valuable insight into the firing conditions, gloss decoration and provenance of ancient ceramic potteries.
      PubDate: Fri, 26 Jun 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa034
      Issue No: Vol. 69, No. 6 (2020)
       
  • Insulin protects against type 1 diabetes mellitus-induced ultrastructural
           abnormalities of pancreatic islet microcirculation
    • Authors: Wang B; Zhang X, Liu M, et al.
      Pages: 381 - 390
      Abstract: AbstractPancreatic islet microcirculation, consisting of pancreatic islet microvascular endothelial cells (IMECs) and pericytes (IMPCs), provides crucial support for the physiological function of pancreatic islet. Emerging evidence suggests that pancreatic islet microcirculation is impaired in type 1 diabetes mellitus (T1DM). Here, we investigated the potential ultrastructural protective effects of insulin against streptozotocin (STZ)-induced ultrastructural abnormalities of the pancreatic islet microcirculation in T1DM mouse model. For this purpose, pancreatic tissues were collected from control, STZ-induced T1DM and insulin-treated mice, and a pancreatic IMECs cell line (MS1) was cultured under control, 35 mM glucose with or without 10−8 M insulin conditions. Transmission and scanning electron microscopies were employed to evaluate the ultrastructure of the pancreatic islet microcirculation. We observed ultrastructural damage to IMECs and IMPCs in the type 1 diabetic group, as demonstrated by destruction of the cytoplasmic membrane and organelles (mainly mitochondria), and this damage was substantially reversed by insulin treatment. Furthermore, insulin inhibited collagenous fiber proliferation and alleviated edema of the widened pancreatic islet exocrine interface in T1DM mice. We conclude that insulin protects against T1DM-induced ultrastructural abnormalities of the pancreatic islet microcirculation.
      PubDate: Fri, 10 Jul 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa036
      Issue No: Vol. 69, No. 6 (2020)
       
  • Identification of lymphatic endothelium in cranial arachnoid
           granulation-like dural gap
    • Authors: Kutomi O; Takeda S.
      Pages: 391 - 400
      Abstract: AbstractThe dynamics of cerebrospinal fluid (CSF) are essential for maintaining homeostasis in the central nervous system. Despite insufficiently detailed descriptions of their structural and molecular properties for a century, cranial arachnoid granulations (CAGs) on meninges have been thought to participate in draining CSF from the subarachnoid space into the dural sinuses. However, recent studies have demonstrated the existence of other types of CSF drainage systems, such as lymphatic vessels adjacent to dural sinus and paravascular space in the brain so-called glymphatic system. Therefore, the role of CAGs in CSF drainage has become dubious. To better understand CAG function, we analyzed the ultrastructure and molecular identity of CAG-like structure on meninges adjacent to the superior sagittal sinus of pigs. Transmission electron microscopy analysis revealed that this structure has a reticular conglomerate consisting of endothelial cells that resembles lymphatic linings. Furthermore, immunohistochemistry and immunoelectron microscopy showed that they express molecules specific to lymphatic endothelial cell. We coined a name ‘CAG-like dural gap (CAG-LDG)’ to this structure and discussed the physiological relevance in terms of CSF drainage.
      PubDate: Mon, 13 Jul 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa038
      Issue No: Vol. 69, No. 6 (2020)
       
  • Kinetic analysis of the intracellular processing of siRNAs by confocal
           microscopy
    • Authors: Vocelle D; Chesniak O, Smith M, III, et al.
      Pages: 401 - 407
      Abstract: AbstractHere, we describe a method for tracking intracellular processing of small interfering RNA (siRNA) containing complexes using automated microscopy controls and image acquisition to minimize user effort and time. This technique uses fluorescence colocalization to monitor dual-labeled fluorescent siRNAs delivered by silica nanoparticles in different intracellular locations, including the early/late endosomes, fast/slow recycling endosomes, lysosomes and the endoplasmic reticulum. Combining the temporal association of siRNAs with each intracellular location, we reconstructed the intracellular pathways used in siRNA processing, and demonstrate how these pathways vary based on the chemical composition of the delivery vehicle.
      PubDate: Thu, 11 Jun 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa031
      Issue No: Vol. 69, No. 6 (2020)
       
  • TEM observation of inorganic substances distributed in gel materials for
           medical devices using ultra-thin cryosectioning
    • Authors: Ito E; Takase H, Yamamoto K.
      Pages: 408 - 410
      Abstract: AbstractIn this study, a method was developed for examining the distribution pattern of inorganic substances dispersed in hydrogel-filled medical devices. Transmission electron microscopy (TEM) using ultra-thin cryosectioning (owing to hydrogel’s water content) was performed on contact lenses with an iris pattern in which the distribution pattern of inorganic pigments was problematic. We confirmed the depth and distribution pattern of pigments in the hydrogel. The results indicated that ultra-thin cryosectioning with TEM was effective for inspecting the distribution of inorganic substances in hydrogel-filled devices.
      PubDate: Fri, 10 Jul 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa037
      Issue No: Vol. 69, No. 6 (2020)
       
  • Development of a Mach-Zehnder type electron interferometer on a 1.2-MV
           field-emission transmission electron microscope
    • Authors: Akashi T; Takahashi Y, Harada K.
      Pages: 411 - 416
      Abstract: AbstractWe have developed an amplitude-division type Mach-Zehnder electron interferometer (MZ-EI). The developed MZ-EI is composed of single crystals corresponding to amplitude-division beam splitters, lenses corresponding to mirrors and an objective aperture. The spacings and azimuth angles of interference fringes can be controlled by single crystal materials and their orientations and by diffraction spots selected by the objective aperture. We built the MZ-EI on a 1.2-MV field-emission transmission electron microscope and tested its performance. Results showed that interference fringes were created for various spacings and azimuth angles, which demonstrates the practicability of the MZ-EI as an amplitude-division type electron interferometer.
      PubDate: Wed, 15 Jul 2020 00:00:00 GMT
      DOI: 10.1093/jmicro/dfaa040
      Issue No: Vol. 69, No. 6 (2020)
       
 
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