Publications by authors named "P GALY"
Article Synopsis
- The coffee-ring effect (CRE) refers to the tendency of particles to accumulate at the edges of a drying drop, which can negatively impact processes that need uniform distribution or be used for specific applications like diagnostics.
- Researchers have discovered a way to control or eliminate the CRE by using redox-sensitive surfactants that can adjust particle deposition patterns in drying drops based on their oxidation states.
- This method not only allows for fine-tuning of how particles are arranged, from crystalline rings to uniform disks, but also paves the way for innovative diagnostic techniques that rely on visualizing redox states in solutions.
Self-propelled drops are capable of motion without external intervention. As such, they constitute attractive entities for fundamental investigations in active soft matter, hydrodynamics, and surface sciences, as well as promising systems for autonomous microfluidic operations. In contrast with most of the examples relying on organic drops or specifically treated substrates, here we describe the first system of nonreactive water drops in air that can propel themselves on a commercially available ordinary glass substrate that was used as received.
View Article and Find Full Text PDFIn 200 young patients with apparently idiopathic spontaneous pneumothorax, the following radiologic features were analyzed: degree of collapse on the initial chest film, areas of atelectasis, and presence of blebs, apical opacities, fibrous adhesions, pleural effusions, and controlateral shift of mediastinal structures. Confrontation of apical changes with pathologic findings in operative specimens suggests that mesothelial rupture with reactive hyperplasia results in a "pneumatization chamber" visible as a bullous image. Following drainage, homolateral shifts of mediastinum and four cases of pulmonary edema were recorded.
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