Lidia A Fernandez

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Recent increases in the pressure output of diagnostic ultrasound scanners have led to an interest in establishing thresholds for bioeffects in many organs including the lungs of mammals. Damage may be mediated by inertial cavitation, yet there have been no such direct observations in vivo. To explore the hypothesis of cavitation-based bioeffects from(More)
An animal model was used to study tumor blood flow by the Doppler CW technique. The objective was to determine when neovascularity could be detected as a function of tumor size and time since transplantation. A Walker 256 carcinosarcoma tumor was inoculated into the flank of 17 Sprague-Dawley rats. Doppler examinations, using a 9 MHz CW probe, were(More)
Two different fibrinogen (Fib) amperometric immunosensing designs based on the use of magnetic beads (MBs) and a novel specific nanobody (Nb) expressed in Escherichia coli are described for the first time. The immunological reaction for Fib detection was performed on COOH-MBs or His-Tag-Isolation-MBs as solid support for the immobilization of the antigen or(More)
The photocatalytic ozonation of a mixture of 3 phenols (gallic acid, tyrosol and syringic acid) has been conducted under different operating conditions. The individual adsorption of the phenol type compounds onto titanium dioxide (photocatalyst) has been first evaluated. Equilibrium conditions are attained in less than an hour while the isotherm curves(More)
Detection of cancer in early stages with hematoporphyrin derivatives (HpD) is highly limited by the low fluorescence quantum yield, the strong autofluorescent components of the tissue, and the low contrast between normal and tumoral tissue when fluorescent photographs are taken. A new computer analysis based on digital subtraction of photographs before and(More)
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