LNNano - Brazilian Nanotechnology National Laboratory

Science and Research

Fully-printed carbon black conductive nanostructures for functional devices

Abstract: In this work, we demonstrate the first example of fully printed carbon nanomaterials on paper with unique features, aiming the fabrication of functional electronic and electrochemical devices. Bare and modified inks were prepared by combining carbon black and cellulose acetate to achieve high-performance conductive tracks with low sheet resistance. The carbon black tracks withstand […]

Long-range coherent tunneling in physisorbed molecular ensembles

In molecular systems, the charge transport is governed by a series of carrier-molecule quantum interactions responsible for several chemical and biological phenomena (…)

Functionalization-free microfluidic electronic tongue based on a single response

This manuscript is the first report of a single response e-tongue. Such unprecedented method may signify a breakthrough in the development of fast, simple, and reproducible e-tongues, contributing for a widespread dissemination of these analytical platforms in academy and industry

New studies and improvement on analysis velocity of method created in LNNano for point-of-use quantitative analyses

Called microemulsification-based method (MEC), such approach relies on the generation of nanodroplets in thermodynamically stable dispersions (microemulsions). This process ensures quantitative chemical analyses with naked-eye detection, eliminating the use of any instrument

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.