LNNano - Brazilian Nanotechnology National Laboratory

Science and Research

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 (…)

Gravity-assisted distillation on a chip: fabrication, characterization, and applications

We report on the first time a fully integrated microscale distiller in agreement with the apparatus of conventional flash distillation.

Mold heat conductance as drive force for tuning freeze-casted nanocellulose foams microarchitecture

Microarchitecture of nanocellulose freeze-casted foams is tuned during the freezing step as the ice-crystals growing direction is changed by the mold configuration and heat conductance of it walls causing an oriented structure in certain directions.

Turbulence-assisted high throughput liquid-liquid extraction in microfluidics and Ni(OH)2 nanoparticles for electrochemical determination of glycol traces in natural gas condensate

We report on a simple and fast method to determine glycol traces in condensate that is a powerful alternative for the oil and gas industry

Microstructural characterization of nanocellulose foams prepared in the presence of cationic surfactants

The presence of cationic surfactants lead cellulose nanofibers to aggregate in aqueous suspension which modified the porosity and mechanical properties of the freeze-dried foams as revealed through microtomography characterizations