The evaluation of disposable lab-on-a-chip (LOC) devices on cell phones is an attractive alternative to migrate the analytical strength of LOC solutions to decentralized sensing applications. Imaging the micrometric detection areas of LOCs in contact with intact phone cameras is central to provide such capability. This work demonstrates a disposable and morphing liquid lens concept that can be ...

In this work we present an optical technique for characterizing sub-micrometric areas based on reflectivity of the light as a function of angle of incidence for the two pure polarizations s and p, covering a range of angles of incidence from -71.80° to 71.80° with a resolution of 0.1°. Circular areas with a diameter in the order of 600 nm can be characterized, and the spectra for the two polari...

Progress in nanotechnology calls for material probing techniques of high sensitivity and resolution. Such are also used high-impact studies nanoscale materials medicine biology. Soft X-ray microscopy has been successfully investigating complex biological processes occurring at micrometric sub-micrometric length scales is one the most powerful tools life sciences. Here, we present capabilities T...

Hybrid materials were prepared by mixing commercial polymers with micrometric metal powders. The polymer matrix used was low density polyethylene (LDPE). We have used aluminum spheres with the average diameter of 1 μm. The particle concentration in the matrix was varied from 0.5 wt.% to 10 wt.%. Scanning electron microscopy (SEM) was used to investigate the particle dispersion on the surfaces o...

Texture in dense or porous ceramics can enhance their functional and structural properties. Current methods for texturation employ anisotropic particles as starting powders processes that drive orientation into specific directions. Using ultra-low magnetic fields combined with slip casting, it is possible to purposely orient magnetically responsive any direction. When those are suspended nanopa...

The lipopeptide surfactin exhibits promising antimicrobial activities which are hampered by haemolytic toxicity. Rational design of new surfactin molecules, based on a better understanding of membrane:surfactin interaction, is thus crucial. We here performed bioimaging of lateral membrane lipid heterogeneity in adherent living human red blood cells (RBCs), as a new relevant bioassay, and explor...

Single-crystalline magnetite (Fe3O4) particles having a size beyond the nanometric range (1 µm to 50 µm) and showing high (close bulk value) saturation-specific magnetization (σs = 92 emu/g), were obtained by hydrothermal decomposition of Fe-EDTA complex. The very low values magnetic remanence (σr 0.82 emu/g) coercitivity (μoHc 1.53 mT) observed at room temperature (RT) suggest superparamagneti...

Prediction of pore fouling by microparticles is still challenging and remains a difficult step to optimize membrane and filtration processes. The scientific issue consists in determining the relevant operation parameters controlling the capture of particles and the clogging of the filter. In this study, we have developed for a dead-end and cross-flow filtration a poly-dimethylsiloxane (PDMS) de...

Prediction of pore fouling by microparticles is still challenging and remains a difficult step to optimize membrane and filtration processes. The scientific issue consists in determining the relevant operation parameters controlling the capture of particles and the clogging of the filter. In this study, we have developed for a dead-end and cross-flow filtration a poly-dimethylsiloxane (PDMS) de...