Abstract:
:In the present work, we propose the use of the Laser Scanning Confocal Microscopy (LSCM) to determine the effect of water repellents on rock's pore-network configuration and interconnection. The rocks studied are sandstones of Miocene age, a building material that is commonly found in the architectural heritage of Tunisia. The porosity quantitative data of treated and untreated samples, obtained by mercury porosimetry tests, were compared. The results show a slight decrease in total porosity with the water repellent treatment, which reduced both microporosity and macroporosity. This reduction produced a modification in pore size distribution and a shift of the pore access size mode interval toward smaller pore diameters (from the 30-40 microm to the 20-30 microm intervals). The water repellent was observed in SEM images as a continuous film coating grain surfaces; moreover, it was easily visualized in LSCM, by staining the water repellent with Epodye fluorochrome, and the coating thickness was straightforwardly measured (1.5-2 microm). In fact, the combination of mercury intrusion porosimetry data and LSCM observations suggests that the porosity reduction and the shift of the pore diameter mode were mainly due to the general reduction of pore diameters, but also to the plugging of the smallest pores (less than 3-4 microm in diameter) by the water repellent film. Finally, the LSCM technique enabled the reconstruction of 3D views of the water repellent coating film in the pore network, indicating that its distribution was uniform and continuous over the 100 microm thick sample. The LSCM imaging facilitates the integration and interpretation of mercury porosimetry and SEM data.
journal_name
Microsc Res Techjournal_title
Microscopy research and techniqueauthors
Zoghlami K,Gómez-Gras D,Corbella M,Darragi Fdoi
10.1002/jemt.20624subject
Has Abstractpub_date
2008-11-01 00:00:00pages
816-21issue
11eissn
1059-910Xissn
1097-0029journal_volume
71pub_type
杂志文章abstract::The applicability of the binomial frequency distribution is outlined for the analysis of the evolution nanoscale atomic clustering of dilute solute in an alloy subject to thermal ageing in 3D atom probe data. The conventional chi(2) statistics and significance testing are demonstrated to be inappropriate for compariso...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20582
更新日期:2008-07-01 00:00:00
abstract::Acrylic resin mixtures are commonly used to study microscopic sections of biological specimens, giving the advantage of good morphological preservation. Existing embedding protocols, however, are suitable for tissue blocks, not exceeding 1 mm in thickness. We have developed a protocol to embed larger specimens (up to ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20139
更新日期:2005-01-01 00:00:00
abstract::Gymnosporia arenicola Jordaan (Celastraceae) is a shrub or small tree, which naturally occurs in coastal sand dunes of Southern Mozambique and South Africa. Its dried leaf is often used in traditional medicine for the treatment of infectious and inflammatory diseases. Hereby, we present results of studies carried out ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22565
更新日期:2015-11-01 00:00:00
abstract::Transgenic mice are valuable experimental models of human endocrine diseases. Targeted ablation of specific cell lineages or insertion of genes coding for releasing factors, hormones, growth factors, and oncogenes fused with appropriate promoters, or mutated genes, can induce several pituitary disorders. Various hypos...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19971015)39:2<194::AID-JEM
更新日期:1997-10-15 00:00:00
abstract::In the way of making graphene an industry-friendly material, it must be mass-produced with high-quality and reduced cost over large areas. Assisted by machine-learning techniques, rapid, nondestructive and accurate determination of large graphene sheets on SiO2 /Si substrates has been made possible in recent years by ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23505
更新日期:2020-09-01 00:00:00
abstract::Cell-free extracts of Xenopus eggs were used to investigate how differing lamin sub-types are incorporated into a lamina and how lamina composition influences DNA replication. Purified recombinant human lamin A (HlaminA) was inoculated into egg extracts, which support in vitro nuclear assembly. The route of incorporat...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0029(19990401)45:1<1::AID-JEMT1
更新日期:1999-04-01 00:00:00
abstract::The antennal flagellum of female Manduca sexta bears eight sensillum types: two trichoid, two basiconic, one auriculate, two coeloconic, and one styliform complex sensilla. The first type of trichoid sensillum averages 34 microm in length and is innervated by two sensory cells. The second type averages 26 microm in le...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/jemt.1180
更新日期:2001-12-01 00:00:00
abstract::Aluminum-lithium alloy is regarded as the most promising light material in the aircraft and aerospace industries. For the production of complex and high-precision parts, the hot forming with synchronous quenching (HFSQ) process has become an effective and attractive forming method. In order to achieve the performance ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23593
更新日期:2021-02-01 00:00:00
abstract::Cigarette smoke is a significant source of cadmium, lead, and toxic elements, which are absorbed into the human organism. In this context, the aim of this study was to investigate in vitro the presence of toxic elements, cadmium, and lead deriving from cigarette smoke in the resin composite, dentine, and dental enamel...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20903
更新日期:2011-03-01 00:00:00
abstract::The mammalian zona pellucida (ZP) is an extracellular matrix surrounding oocytes and early embryos, which is critical for normal fertilization and preimplantation development. It is made up of three/four glycoproteins arranged in a delicate filamentous matrix. Scanning electron microscopy (SEM) studies have shown that...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/jemt.20301
更新日期:2006-06-01 00:00:00
abstract::Several studies support the role of Western-style diet (WD) in inflammatory bowel disease (IBD). Toll-like receptors/NOD-like receptors (TLRs/NLRs) are important to maintain a healthy epithelium as well as inducing inflammation. Given that dietary factors influence IBD development, that epithelial dysfunction is thoug...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22831
更新日期:2017-06-01 00:00:00
abstract::To investigate intrinsic physicochemical properties and interactions of three different calcium hydroxide-based medications via means of different analytical methods. Two-commercial premixed medications: TempCanal(TCmx) and ProCalR(PCmx) and powder-form ProCal(PCpw) with glycerin were used. Vibrational modes were anal...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23600
更新日期:2020-09-21 00:00:00
abstract::The antennal sensilla of the pine weevil (Pissodes nitidus Roel.) were observed with scanning electron microscopy and transmission electron microscopy (TEM). The weevil antenna consists of a long scape, a pedicel, and a flagellum with 10 segments; the last four flagellum segments are fused, forming the antennal club, ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20920
更新日期:2011-05-01 00:00:00
abstract::Programmed cell death occurs in a variety of organs during amphibian metamorphosis and is usually identified by electron microscopy as apoptosis or its modifications. Because of the massive cell death that occurs during a short period, amphibian organs serve as an ideal model system for the study of mechanisms underly...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19960615)34:3<228::AID-JEM
更新日期:1996-06-15 00:00:00
abstract::Progressive multifocal leukoencephalopathy is an important viral opportunistic infection of oligodendrocytes leading to direct demyelination. Virus is likely disseminated to the brain via the blood. However, the timing of that dissemination with relationship to clinical disease is unknown. Important clues about viral ...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/jemt.1070320405
更新日期:1995-11-01 00:00:00
abstract::Myotonic dystrophy (DM) is an inherited multisystem disorder characterized by the presence of a high polymorphic expansion of trinucleotide (CTG) repeat in the 3' untranslated region of the DM protein kinase (DMPK) gene. However, the role of myotonic dystrophy protein kinase (DMPK) has yet to be elucidated. Studies ai...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.10223
更新日期:2002-09-01 00:00:00
abstract::Neuropeptides are peptides with profound effects on the nervous system. The function of neuropeptides can be studied in detail in the stomatogastric nervous system (STNS). Neuropeptides are ubiquitously distributed in the STNS and it contains well-studied neural circuits that are strongly modulated by neuropeptides. T...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/jemt.10269
更新日期:2003-02-15 00:00:00
abstract::Polarized microscopy provides unique information on anisotropic samples. In its most complete implementation, namely Mueller microscopy, this technique is well suited for the visualization of fibrillar proteins orientations, with collagen in the first place. However, the intrinsic optical anisotropy of unstained tissu...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22530
更新日期:2015-08-01 00:00:00
abstract::The fixed number years-identification of Chinese material medicinal was a difficulty in the process of the traditional Chinese pharmacology, the phenomenon was found in our study of telomerase that the speed of the vascular cambium outside expanding growth fluctuated in a definite value. Based on it, we put forward a ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22154
更新日期:2013-02-01 00:00:00
abstract:PURPOSE:To evaluate the influence of irrigation protocols and drying procedures on the bond strength of two methacrylate-based sealers to dentin and the associated failure pattern using scanning electron microscopy (SEM). MATERIALS AND METHODS:Fifty single-rooted human teeth were prepared with an irrigation protocol u...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22839
更新日期:2017-06-01 00:00:00
abstract::The present study was conducted on characterization of morpho-anatomical, phytochemical, and bio-elemental analysis of root, stem, and leaf of Verbascum thapsus. Morphologically Verbascum is a biennial plant that flowers for a month and a half in mid- to late summer. Various organoleptic features of root, leaf, and st...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23454
更新日期:2020-06-01 00:00:00
abstract::The wavelength of Raman-scattered light depends on the molecular composition of the substance. This is the first attempt to acquire Raman spectra of a mouse eyeball removed from a living mouse, in which the eyeball was preserved using the "in vivo cryotechnique" followed by freeze-drying. Eyeballs were cryofixed using...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20449
更新日期:2007-07-01 00:00:00
abstract::The new stereology permits the objective, quantitative description of morphology by efficient and design-based methods. Applications to placentas in normal and abnormal pregnancies have proved of great value for challenging earlier misconceptions and interpreting better the processes of growth, morphogenesis, adaptati...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19970701/15)38:1/2<195::AI
更新日期:1997-07-01 00:00:00
abstract::It is increasingly recognized that neuroepithelial endocrine cells and organoid clusters of these cells termed neuroepithelial bodies are widely distributed in the respiratory tract of vertebrates. This review focuses on the neuroepithelial endocrine system in the airway epithelium of mammals according to observations...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19970401)37:1<31::AID-JEMT
更新日期:1997-04-01 00:00:00
abstract::Various deconvolution algorithms are often used for restoration of digital images. Image deconvolution is especially needed for the correction of three-dimensional images obtained by confocal laser scanning microscopy. Such images suffer from distortions, particularly in the Z dimension. As a result, reliable automati...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20773
更新日期:2010-03-01 00:00:00
abstract::This study evaluated the fluoride (F) release and remineralizing potential of varnishes containing sodium fluoride (5% NaF), 5% NaF with CPP-ACP and 5% NaF with TCP in early caries lesions in primary teeth. To determine the F release at 1, 4, 6, 24, 72, and 168 hr, strips were covered with the varnishes and immersed i...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23662
更新日期:2020-12-05 00:00:00
abstract::In present study, multiple microscope techniques were used for the systematics identification of the species Asplenium dalhousiae. The plant was collected from different phytogeographical and its natural habitat of Pakistan, where it shows higher diversity. Morphology, foliar epidermal anatomy, and spore morphological...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23189
更新日期:2019-04-01 00:00:00
abstract::In addition to pesticidal activity, the capacity of natural compounds to inhibit the reproduction of parasites emerge as an important alternative tick control method. In this context, Satureja spp. stand out due to their recognized pesticidal properties. Among parasites of veterinary importance, the cattle tick, Rhipi...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23693
更新日期:2021-01-06 00:00:00
abstract::The mammalian gallbladder mucosa is lined by a simple columnar epithelium. Typical surface epithelial cells (principal cells) contain short microvilli, secretory granules, dense bodies, mitochondria and Golgi apparatus. Dense bodies are thought to be lysosomes. Secretory granules contain mucous glycoproteins which are...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19970915)38:6<616::AID-JEM
更新日期:1997-09-15 00:00:00
abstract::In order to understand the interaction between dendritic cells (DCs) and helper T (Th) cells in the region exposed to antigens during pulmonary delayed-type hypersensitivity (DTH), which is considered to be mediated by Th1 cells, we immunohistochemically investigated their spatial relationship in the cellular infiltra...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1091
更新日期:2001-05-15 00:00:00