LNNano - Brazilian Nanotechnology National Laboratory

Science and Research

Structural aspects and biological interactions of mesoporous silica modified with graphitic carbon

Study from groups of the LNNano (LMN, NBT and LME) and IQ/UNICAMP has deepened the understanding about the structure and chemistry of graphitic carbon modified SBA-15 particles and evaluated their interaction with red blood cells and plasma proteins

Flexible and High-performance Pencil-Drawn Electrodes on Paper

A simple and fast fabrication method to create high performance pencil-drawn electrochemical sensors is reported for the first time (…)

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