Publication date: 10th April 2014
Increasing interest has been paid to label-free biosensors in recent years. Among them, refractive index (RI) optical biosensors enable high density and the chip-scale integration of optical components. This makes them more appealing to develop lab-on-a-chip devices.Today, many RI integrated optical (IO) devices are made using silicon-based materials, although other polymeric materials, as SU-8 photoresist are also employed.A key issue in their development is the biofunctionalization of sensing surfaces because they provide a specific, sensitive response to the analyte of interest. The biofunctionalization approach must fulfil requirements such as: favoring the receptor attachment that induces selectivity to a target of interest; preventing surface fouling; changing the hydrophobicity/hydrophilicity of the surface, while maintaining the sensing system’s physical (optical, mechanical, etc.) properties; few reaction steps; low optical adsorption at the working wavelengths; homogeneously thin layer formation; good surface coverage; reproducibility; robustness; low nonspecific binding; minimal sample and reagents consumption; easy handling; biocompatible conditions (pH, ionic strength, solvent, etc.); and integrability with mass-scale fabrication.The work developed in our research group focuses on the chemical surface modification of silicon based materials and SU-8, on the capture agent attachment (biofunctionalization), on the optimization of the bioassay formats, and on the characterization techniques that are needed to finally set up an IO biosensor. Here, it is provided an overview of the most relevant results obtained in the development of these devices and their demonstration for model system and for real sample biosensing.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.