LNNano - Brazilian Nanotechnology National Laboratory

Science and Research

A simple capacitive method to evaluate ethanol fuel samples

Ethanol is a biofuel used worldwide. However, the presence of excessive water either during the distillation process or by fraudulent adulteration is a major concern in the use of ethanol fuel (…)

3D-Printed microfluidic device enables reliable and low-cost processing of petroleum

Researchers from LMF/LNNano and IQ/Unicamp introduced a simple protocol to manufacture disposable, 3D-printed microfluidic systems for sample preparation of petroleum

Mesoporous silicas functionalized with graphitic carbon nanodomains

Researchers from LMN/LNNano and IQ/UNICAMP have studied how to control the carbon content and the number of graphitic carbon nanodomains in mesoporous silica supports using a controlled organofunctionalization and pyrolysis procedure

Capillary-based microfluidic interface enables multidimensional gas phase separations of complex organic mixtures

LMF introduced a modulation strategy for comprehensive two-dimensional gas chromatography by using a simple and consumable-free modulator. Proposed prototype by using an in-oven TDM modulator was successfully applied to a series of challenging samples.

Characterization and modeling of nanostructured multilayer NbN/CrN coatings for new generation wear resistant automotive components

Elemental maps obtained by EELS in Spectrum mode obtained from niobium rich and chromium rich layers and stress along a 7.5 nm periodicity coating, in the X direction

High adhesion and hybrid irreversible/reversible PDMS microfluidic chips

LMF addresses PDMS microdevices with burst pressures of up to 4.5 MPa. This value is more than tenfold the pressures withstood by the chips described in literature. In terms of the reversible behavior, it is crucial in research and development stages

Renewable solid electrodes in microfluidics

LMF’s researcher creates a method for integrating solid electrodes into microfluidic chips that allows the reproducible renewal of passivated electroactive surfaces without any treatment, neither physical nor chemical. These electrodes are the closest analogue to the mercury drop electrode

Homemade potentiostat and smartphone for in-situ electroanalytical measurements

LMF addresses for the first time the development of a totally integrated electrochemical point-of-use platform with homemade potentiostat and smartphone for real-time processing multivariate data

Smartphone for point-of-care quantification of protein by Bradford assay

LNNano’s researchers outline the use of a smartphone for colorimetric determination of proteins in real samples of human blood plasma. Such platform remarkably streamlined the Bradford test

Turbulence in microfluidics

LMF addresses the second literature’s reporting on the formation of high flow rate-assisted turbulence into microfluidic channels (flow rates of up to 60 mL min-1). The platform generated high throughput liquid-liquid extractions, with residence time of only 0.01 s.