Publications by authors named "Mariana Hildebrand"

Article Synopsis
  • Crystalline riboflavin (vitamin B) enhances vision in low-light conditions for some animals by serving as a reflecting layer behind their retina.
  • Researchers aimed to uncover the solid-state structure of synthetic riboflavin using various experimental and computational techniques, contrasting recent findings with their own interpretation of hydrogen-bonding arrangements.
  • The study also highlights potential challenges in using density functional theory for structural analysis of hydrogen-bonded materials and provides values for riboflavin's refractive index, which are crucial for understanding its optical properties.
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Structural analysis of beam-sensitive materials by transmission electron microscopy (TEM) represents a significant challenge, as high-resolution TEM (HRTEM) requires high electron doses that limit its applicability to stable inorganic materials. Beam-sensitive materials, e.g.

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We have previously demonstrated that the hypotensive effect of the ruthenium complex [Ru(terpy)(bdq)NO](3+) (TERPY) is slow, long lasting, and does not lead to reflex tachycardia. TERPY's hypotensive effect is increased in hypertensive rats (SHR or 2 kidney-1clip) compared with normotensive rats. We hypothesized that sexual differences could interfere in the hypotensive effects of nitric oxide (NO) donors in SHR.

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