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IFN Summer Internship 2016

09 May 2016
IFN Summer Internship 2016

Dear IFN Researchers: The Institute for Functional Nanomaterials (IFN) is accepting applications for Summer Doctoral Internships and Summer Undergraduate Internships exclusively in the area of Nanotechnology. Below is the information...

IFN Fellowship August 2015-July 2016

15 June 2015
IFN Fellowship August 2015-July 2016

2015-2016 Academic IFN Fellowship (Period August 2015-July 2016) Stipend: $27,600 annual ($2,300 monthly)Tuition: $2,500 annualTravel: $2,400 annual (students to present their research)Materials: $2,500 annual Application Requirements: Have a minimum 3.0...

2015 IFN Summer Internships

30 April 2015

2015 Graduate IFN Summer Internships (Period June 1 – July 31) Stipend: $2,300 monthly Application Requirements: Evidence of Ph.D. candidacy Have a minimum 3.0 GPA on 4.0 scale Evidence of...

The First IFN Elevator Pitch Competition

07 April 2015
The First IFN Elevator Pitch Competition

Submit Your Video For the 1st IFN Elevator Pitch Competition. Present your research and yourself in a clear and concise manner Competition for students and postdocs Speech time: 2 minutes...

IFN Science-Art Contest

07 April 2015
IFN Science-Art Contest

“Art and science are two fields that value life, finding the unknown and experimental action. Undoubtedly the reflective look of the artists to the immediate reality has been tied to...

IFN Fellowship January-December 2015

20 November 2014
IFN Fellowship January-December 2015

2015 Academic IFN Fellowship (Period January-December 2015) Stipend $2,300 monthly Application Requirements: Have a minimum 3.0 GPA on 4.0 scale Evidence of Ph.D. candidacy Evidence of satisfactory academic progress according...

IFN Fellowship Summer 2014

30 April 2014
IFN Fellowship Summer 2014

2014 Graduate IFN Summer Internships (Period June 2 – July 31) Stipend $2,300 monthly Application Requirements: Have a minimum 3.0 GPA on 4.0 scale Evidence of Ph.D. candidacy Evidence of...

2nd Puerto Rico NSF/RII EPSCoR/IFN Annual Meeting

16 April 2009

The 2nd Annual Meeting for EPSCoR/ IFN will be held Thursday, April 16, 2009 at the Mayaguez Resort and Casino Hotel. This agenda is in PDF format. In order to...

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Luminescent silicon clusters

New high-resolution nanoprobes are required for efficient, accurate, non-toxic, and minimally-perturbing in vivo imaging of cells. Two candidate materials are being studied: Nanocrystalline diamond (NCD), and Silicon passivated nanoclusters (NSi). Both particles are good candidates for biological probes because they are biocompatible and photostable. We are processing NCD particles, making diluted suspensions in cell media and testing their luminescence properties using in vitro studies of the Mosquitofish nervous system to obtain monodispersed particles suitable for imaging cellular transport and to demonstrate that their blue-greenred luminescence is not quenched by the media. This will be followed by in vivo studies of the Mosquitofish nervous system using deconvolution-assisted structured illumination microscopy (dSIM). The nanoparticles to be developed and tested will make possible in vivo monitoring and tracking of spinal motor neuron changes through time and contribute to the understanding of spinal motor neuron development, remodeling, structure, function, aging, and death. NSi and Europium doped-NSi are being synthesized following a top-down protocol used to prepare standing nanoporous silicon. The films are divided into nanoclusters, each of which is made of several silicon nanoparticles. Allowing the nanoclusters to develop a silicon oxide layer improves their photoluminescence efficiency and stability in biological environments. The Eu-doped NSi nanoprobe will emit in a distinct color spectrum. They will be prepared by doping the surface of the silicon nanostructure with Eu ions. We favor the Eu2+ valence state in the oxidized external layer of the nanostructures as it shows larger absorption cross section compared with the 3+ state. We have demonstrated that the presence of the NSi favors the 2+ state. Our preliminary results with in vivo and in vitro samples show that our passivated silicon nanostructures are highly luminescent and stable probes. In vitro biological samples impregnated with NSi showed stable luminescence one year after preparation. This project was initially supported through seed funds from the PR-NSF-EPSCoR Phase V Program.