Enhanced stability of superparamagnetic iron oxide nanoparticles in biological media using a pH adjusted-BSA adsorption protocol
Si-Ming Yu • Anna Laromaine* • Anna Roig*
J Nanopart Res (2014) 16:2484, DOI 10.1007/s11051-014-2484-1

SPIONs were  synthesized by  a facile, rapid  and cost  effective  microwave  assisted  method. Then,  a modified pH  adjusted-BSA  adsorption  protocol and an  addition of excess  trisodium citrate dihydrate (Na₃Cit) were used to enhance their stability in the media. The BSA adsorption protocol showed great efficiency in stabilizing the dispersed state of both SPIONs in the tested media, while the addition of excess Na₃Cit showed limit effect. The formed BSA layer on SPIONs could be imaged by negative staining TEM, and revealed by Cryo-TEM, FTIR, DLS and the zeta potential measurements. Results indicated that BSA forms a monolayer of a thickness of about 3 ± 1 nm and BSA interacts with SPIONs coating rather than by replacing them and interacting directly with the SPIONs surface. This synthetic method and stabilization protocol offer a general methodology to obtain SPIONs with a variety of surfactants, stable in different biological media in few minutes.

The scientific review panel of the Council for the Lindau Nobel Laureate Meetings has selected Laura to participate in the 64 th Lindau Nobel Laureate Meeting, to be held from 29 June to 4 July 2014, in Lindau, Germany. Only the 600 most qualified young researchers can be given the opportunity to enrich and share the unique atmosphere of the Lindau Nobel Laureate Meeting

http://www.lindau-nobel.org/2014_Lindau_Meeting__Physiology_Medicine.AxCMS?ActiveID=2782

Victor Fuentes, Olga Muntada and Isable Hausmann will be undertaking their final year research project in our group. They will be supervised by Anna Roig, Maria Milla and Anna Laromaine. Here they are receiving a tutorial on nanoparticle synthesis by Siming Yu who is doing an excellent training. Thanks Siming!

 A belated welcome to Ilargi that started her Master work in the n&n group two month ago. She will be studing degradability of bacterial cellulose under the supervision on Anna Laromaine

Wojtek is from Poland but after his PhD at the ICMAB in the group of David Amabilino, Catalunya is his second homeland. He will work with Martí Gich on uncommon environments such as liquids under negative pressure. In his free time he enjoys outdoor activities in particular cycling, trekking and cross-country skiing. 

Nanoparticles and Nanocomposites Group and NANOMOL are partners of COMMON SENSE: COST-EFFECTIVE SENSORS, INTEROPERABLE WITH INTERNATIONAL EXISTING OCEAN OBSERVING SYSTEMS, TO MEET EU POLICIES REQUIREMENTS. www.commonsenseproject.eu. Taking the COMMON SENSE Approach to Understanding the Marine Environment COMMON SENSE is a new project that will support the implementation of European Union marine policies such as the Marine Strategy Framework Directive (MSFD) and the Common Fisheries Policy (CFP). The project, which was launched in Barcelona, Spain, in November 2013, is funded by the EC Seventh Framework Programme (FP7) and has been designed to directly respond to requests for integrated and effective data acquisition systems by developing innovative sensors that will contribute to our understanding of how the marine environment functions. Under the MSFD, EU Member States are expected to assess the overall status of their respective marine environments and to put in place the necessary measures to achieve Good Environmental Status (GES) by 2020, using the ecosystem approach. COMMON SENSE will contribute to the achievement of this goal by developing cost-effective sensors that are fully interoperable with existing observing systems and compatible with the Global Ocean Observing System (GOOS) and the Global Earth Observing System of Systems (GEOSS). The project methodology will include a review of existing technologies and ocean observing systems as well as newer state of the art technologies. Current EU legislation will be examined to gain an understanding of the areas where COMMON SENSE can be most beneficial. The core project research will focus on increasing the availability of standardised data on: eutrophication; concentrations of heavy metals; microplastic fraction within marine litter; underwater noise; and other parameters such as temperature and pressure. COMMON SENSE is coordinated by the Leitat Technological Centre, Spain, and its consortium brings together 15 partners from seven different countries The consortium comprises six SMEs, five research development institutes, three universities and one foundation. The consortium’s expertise and geographical distribution will enable multidisciplinary marine environmental monitoring of key marine regions, including the Baltic Sea, the north-east Atlantic Ocean and the Mediterranean Sea.

The whole N&N Group congratulates Martí on his new post as staff researcher within the CSIC, competition for securing this post was extremely hard

We are proud of him.