The Al, Zr, and Ti modified MCM-41 materials were prepared by the post-synthesis method, and then the Ni-W species were introduced on them by using the co-impregnation method in order to obtain high-performance hydrodenitrogenation (HDN) catalysts. The activity of the catalysts was evaluated by the HDN reaction of quinoline. The optimum HDN activity was observed on the catalyst sup...

Study of dendritic morphology through Golgi impregnation techniques has significantly furthered our understanding of neuronal development, maturation, and senescence. It has also provided insight into the pathogenesis of a wide spectrum of disease processes ranging from brain malformations to degenerative disorders. Golgi impregnation remains virtually the only method for demonstrating dendriti...

Division of Biomedical Sciences (Anatomy) St George's, University of London London, UK ABSTRACT: The standard method for plastination with Biodur TM S10/S3 involves lowtemperature dehydration in a volatile intermediary solvent followed by forced impregnation under vacuum at -15°C. However, some institutions have been reluctant to install low-temperature impregnation equipment because of health ...

__ Technical Papers A Simplified Silver Impregnation Method for Vaginal Smears: Gardner M. Riley, S. J. Behrman, and B . De Vore . ................ . 574 The Use of Ultraviolet Light as a Means of Diagnosing Carnation Mosaic: W. D. Thomas, Jr., R. R. Baker, and Joseph G. Zoril................ ... . 576 Abundance of N15 in the Nitrogen Present in Crude Oil and Coal: Paul V. Smith, Jr., and Boyd ...

X. Zhang, R. E. Jacobs California Institute of Technology, Pasadena, CA, United States In the late 19 century Camillo Golgi revolutionize the budding discipline of neuroscience with his Black Reaction [1, 2], now known as the Golgi stain. This reaction stains a small eclectic, likely random, portion of neurons and processes in the tissue of interest. The Golgi stain consists of pretreatment wit...

The Golgi silver impregnation technique gives detailed information on neuronal morphology of the few neurons it labels, whereas the majority remain unstained. In contrast, the Nissl staining technique allows for consistent labeling of the whole neuronal population but gives very limited information on neuronal morphology. Most studies characterizing neuronal cell types in the context of their d...

Supercritical impregnation is an attractive “clean” alternative to conventional soaking into liquid process, using generally organic solvents. Impregnation process can be used for the development of controlled delivery systems that can be applied in pharmaceutical and medical fields. This work focuses on the preparation of controlled drug delivery systems for ophthalmic applications through sup...