LNNano - Brazilian Nanotechnology National Laboratory

Science and Research

Wearable binary cooperative polypyrrole nanofilms for chemical mapping on skin

Wearable polypyrrole nanofilm arrays have been developed to extend the natural capabilities of the skin

Pencil graphite cores for pattern recognition applications

Ready-to-use sensing probes have been used for the first time to develop a scalable, low-cost, fast and sensitive pattern sensor, which consists of electric double-layer microfluidic capacitors. Rough flake-graphite pencils assured differential interactions towards recognition applications.

Biochar may be the solution to remediate polymeric nanocomposites residues in soil

This work highlights for the very first time the use of biochar as a tool to accelerate degradation of biodegradable polymeric nanocomposites in soil, which sheed light on its great potential for environmental remediation technologies

Low-cost and rapid-production microfluidic sensors for cancer diagnosis anywhere by anyone

We provided the quantification of a breast cancer biomarker in real samples from human patients even at early stage. Using immunoassay based on magnetic nanobeads, the platform can be easily extended to quantify further types of cancer biomarkers and biomolecules associated with other diseases.

Nanoscale Variable-Area Electronic Devices: Contact Mechanics and Hypersensitive Pressure Application

Nanomembranes (NMs) are freestanding structures with few-nanometer thicknesses and lateral dimensions up to the microscale (…)

Nanoarchitectonics in Microfluidic Devices for Sensing and Biosensing

Nanoarchitectonics is based on the fabrication of supramolecular materials through molecular synthesis, self-assembly/self-organization, and microscopic manipulations to mimic devices with biolike functions.

Ag2O nanoparticles electrogenerated on auxiliary electrode allow naked-eye faradaic electrochemical analyses

The sensor was integrated into a handheld platform that consisted of a homemade potentiostat and gravity-assisted pumping, with which on-site tests can be performed by nontrained personnel.

Graphene-Containing Microfluidic and Chip-Based Sensor Devices for Biomolecules

Graphene-based biosensors integrated into microfluidic platforms have led to a notorious progress in the bioanalytical chemistry field by bringing advantages such as high sensitivity and selectivity, real-time and fast assays, multitarget and multiplex analyses, automation, and low sample consumption.

Single-Electron Charging Effects in Hybrid Organic/Inorganic Nanomembrane-Based Junctions

One of the main questions of modern science and technology is how to explore the properties of the matter down to the quantum limits (…)

Hybrid nanomembrane-based capacitors unveil the accumulation properties of molecular ensembles

Considerable advances in the field of molecular electronics have been achieved over the recent years. One persistent challenge, however, refers to the exploitation of the molecular properties of fully integrated electronic devices (…)