Publications by authors named "C A Ospina"

Article Synopsis
  • The research explores the design of ice-repellent surfaces using a combination of soft and rigid materials to improve durability while enhancing ice detachment mechanisms.
  • By fabricating model surfaces with varying rigid-soft ratios and discontinuity lengths, the study measures ice adhesion and analyzes how ice interacts with these surfaces through both experimental and numerical methods.
  • Key findings reveal that stress concentration at the edges of rigid-soft interfaces leads to effective crack propagation, promoting ice detachment and reducing adhesion, highlighting the role of discontinuities in this process.
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Chagas disease (CD) is a zoonotic infection caused by the protozoan parasite Trypanosoma cruzi, affecting over seven million people worldwide. T. cruzi can infect more than 100 species of wild mammals, including opossums, armadillos, bats, carnivores, rodents, and primates, as well as domestic animals like dogs, cats, and exotic pets.

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Background: Chagas disease (CD), caused by Trypanosoma cruzi, poses a major global public health challenge. Although vector-borne transmission is the primary mode of infection, oral transmission is increasingly concerning.

Methods: This study utilized long-amplicon-based sequencing (long-ABS), focusing on the 18S rRNA gene, to explore T.

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Hypothesis: Soft materials are promising candidates for designing passive de-icing systems. It is unclear whether low adhesion on soft surfaces is due to elasticity or lubrication, and how these properties affect the ice detachment mechanism. This study presents a systematic analysis of ice adhesion on soft materials with different lubricant content to better understand the underpinning interaction.

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