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Online SERS Quantification of Staphylococcus aureus and the Application to Diagnostics in Human Fluids

SERS_Quantification_of_StaphylococcusOnline SERS quantification of Staphylococcus aurens

Carme Catala, Bernat Mir-Simon, Xiaotong Feng, Celia Cardozo, Nicolas Pazos-Perez, Elena Pazos, Sara Gómez-de Pedro, Luca Guerrini, Alex Soriano, Jordi Vila, Francec Marco, Eduardo Garcia-Rico and Ramon A. Alvarez-Puebla
Advanced Materials Technologies - DOI: 10.1002/admt.201600163

Efficient treatments in bacterial infections require the fast and accurate recognition of pathogens, with concentrations as low as one per milliliter in the case of septicemia. Detecting and quantifying bacteria in such low concentrations is challenging and typically demands cultures of large samples of blood (~1 milliliter) extending over 24–72 hours. This delay seriously compromises the health of patients. Here we demonstrate a fast microorganism optical detection system for the exhaustive identification and quantification of pathogens in volumes of biofluids with clinical relevance (~1 milliliter) in minutes. We drive each type of bacteria to accumulate antibody functionalized SERS-labelled silver nanoparticles. Particle aggregation on the bacteria membranes renders dense arrays of inter-particle gaps in which the Raman signal is exponentially amplified by several orders of magnitude relative to the dispersed particles. This enables a multiplex identification of the microorganisms through the molecule-specific spectral fingerprints.

Lung cancer risk by polycyclic aromatic hydrocarbons in a Mediterranean industrialized area

 Lung cancer risk by polycyclic aromatic hydrocarbons in a Mediterranean industrialized area

Anna Cuadras & Enric Rovira & Rosa Maria Marcé & Francesc Borrull
Environ Sci Pollut Res- DOI: 10.1007/s11356-016-7566-4

DThis study focuses on characterizing the chronic risk assessment from inhalation of polycyclic aromatic hydrocarbons (PAHs) for people living near the largest chemical complex in the Mediterranean area. Eighteen PAHs were determined in the atmospheric gas and particle phases, counting PM10 and total suspended particles. The lifetime lung cancer risk from PAH exposure was estimated, and the contribution was assessed by phases. The results obtained with the continuous lifetime scenario were compared with those obtained with different chronic scenarios. The estimated chronic risk was also compared with those reported in previous studies.
PAHs were present at higher concentration in the gas phase (>84 %) with a major contribution of the most volatile PAHs, and an equitable distribution of heavy PAHs between gas and particle phases was observed. Petroleum combustion and traffic emissions were suggested as the main sources, but the influence of petrogenic sources cannot be ruled out. The estimated average lifetime lung cancer risk in this study ranged

Energy Solutions Inspired by Nature

Energy Solutions Inspired by Nature

Adrianna Nogalska, Kamila Szalata, Tania Gumi, Jose Antonio Reina, Marta Giamberini, Bartosz Tylkowski, Ricard Garcia Valls
Energy Today - official e-magazin of America Energy Association

During the last decade society demanded to energy providers solutions on production and storage of alternative/green fuels. The market calls for new upstream technological innovations to respond sustainably, efficiently and safely to current and future energy needs. For this reason, most of companies decided to dedicate their R&D departments to find achievable solutions to these societal demands.


EN QUÈ ET PODEM AJUDAR ? ACCIÓ llança, per quart any consecutiu, els Cupons a la Innovació 2017. Es tracta d'uns cupons de descompte econòmic directe que podràs utilitzar per cobrir els costos dels teus projectes d’innovació i tecnologia, a través dels proveïdors acreditats per ACCIÓ. Aquests proveïdors han passat el procés oficial d'acreditació d'ACCIÓ i garanteixen uns serveis de qualitat, orientats específicament a les necessitats de l’empresa.
tecniospring TECNIOspring PLUS is ACCIÓ's fellowship programme. It provides financial support to individual mobility proposals presented by experienced researchers in liaison with a host organisation. Fellows are offered 2-year employment contracts in order to develop applied research projects.
 ACCIÓ posa en marxa noves convocatòries d'ajuts per impulsar la innovació i la incorporació de tecnologia a les empreses catalanes. La nova política d'innovació de la Generalitat de Catalunya destinarà més de 103 milions d'euros a projectes d'innovació d'empreses catalanes en el període 2015-2020.