Electron Microscopic Studies of Kidney with Periodic Acid Silver Methenamine Staining

Utility of reflexive gomori methenamine silver and Acid-fast bacillus staining on bronchoalveolar lavage specimens.

OBJECTIVE Reflexive testing of bronchoalveolar lavage (BAL) specimens with Gomori methenamine silver (GMS) and acid-fast bacillus (AFB) stains is not routinely performed by most institutions. Instead, these stains are usually ordered to evaluate for the presence of fungal elements and/or acid-fast organisms if initial histopathologic assessment suggests the presence of these pathogens. Our inst...

An allochrome periodic acid-methenamine silver stain for demonstrating mycobacteria in tissue sections.

Nyka9) employed the Gomori-Grocott's chromic acid-methenamine silver method for demonstrating tubercle bacilli in tissue sections after sublimate fixative with added hydrogen peroxide or periodic acid. He described that this procedure could demonstrate mycobacteria that had lost their acidfastness by the usual carbol fuchsin stain. Harada5) also employed the periodic acid-methenamine silver sta...

Modified Grocott's methenamine silver nitrate method for quick staining of Pneumocystis carinii.

Electron microscopic characterization of silver nanowire arrays.

Characterization of Silver Nanowire Arrays Hong et al. (1) reported that they had successfully produced arrays of single-crystal silver nanowires (of diameter 0.4 nm) formed in an ambient solution phase inside the pores of selfassembled calix[4]hydroquinone (CHQ) nanotubes. These nanowires, it was suggested, existed as coherently oriented three-dimensional arrays (1). The experimental identific...

Electron Microscopic Studies

Cultured, human, amniotic cells (FL strain) injected into the thigh muscles of cortisoneconditioned mice proliferated to form discrete colonies which, over a period of 5 days, became invested by numerous fibroblasts. Cartilage cells and matrix appeared within the fibroblastic zones during the succeeding 2-4 days. Cartilage matrix calcified within 12 days following FL-cell injection. Cartilage c...