Taken together, these data revealed new surface characteristics of the cytoskeleton of G. Using anti-actin antibody, we observed a labeling in these filamentous structures. Cytoplasmic filaments that supported the internal structures were seen by the first time. The marginal plates were seen linked to a network of filaments, which were continuous with filaments parallel to the main cell axis. The fine structure of the banded collar was also observed. The results revealed a number of new cytoskeletal elements associated with the lateral crest and the dorsal surface of the parasite. intestinalis trophozoites using UHRSEM and HIM in membrane-extracted cells. Here, we studied the organization of the cytoskeleton of G. Recent advances in scanning microscopy technology have opened a new venue for the characterization of cellular structures and include scanning probe microscopy techniques such as ultra-high-resolution scanning electron microscopy (UHRSEM) and helium ion microscopy (HIM). The ultrastructural organization of the Giardia cytoskeleton has been analyzed using different microscopic techniques, including high-resolution scanning electron microscopy. Giardia intestinalis presents a complex microtubular cytoskeleton formed by specialized structures, such as the adhesive disk, four pairs of flagella, the funis and the median body. Gadelha, Ana Paula Rocha Benchimol, Marlene de Souza, Wanderley Helium ion microscopy and ultra-high-resolution scanning electron microscopy analysis of membrane-extracted cells reveals novel characteristics of the cytoskeleton of Giardia intestinalis. The condensate can be observed at room temperature. We found that increasing the strength of the scattering resonance causes the increase of the condensate droplet radius without affecting the condensate fraction inside it. The observed coherence of these quasi-bound states most likely arises from phase- and frequency-synchronized dynamics of all phonon modes, and indicates the formation of many-body condensate of optical phonons around resonant defects. Our results show that the effective radius of these phonon quasi-bound states, the real-space distribution of phonon standing wave amplitudes, the scattering phase shifts, and the nonlinear intermode coupling strongly depend on the presence of defect-induced scattering resonance. Phonon interference patterns with unusually large signal amplitudes have been revealed by scanning tunneling microscopy in intercalated van der Waals heterostructures. Using quantum tunneling of electrons into vibrating surface atoms, phonon oscillations can be observed on the atomic scale. Scanning Tunneling Microscopy Observation of Phonon CondensateĪltfeder, Igor Voevodin, Andrey A. dsDNA molecules are observed under several different conditions to discuss their chemical and physical properties. This article describes experiments for an undergraduate instrumental analysis laboratory that aim to observe individual double-stranded DNA (dsDNA) molecules using fluorescence microscopy and atomic force microscopy (AFM). Observation of DNA Molecules Using Fluorescence Microscopy and Atomic Force MicroscopyĮRIC Educational Resources Information Center