Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Oliva M. Primera"'
Influence of surface and intermolecular interactions on the properties of supported polyoxometalates
Autor:
Oliva M. Primera-Pedrozo, Shuai Tan, Difan Zhang, Brian T. O'Callahan, Wenjin Cao, Eric T. Baxter, Xue-Bin Wang, Patrick Z. El-Khoury, Venkateshkumar Prabhakaran, Vassiliki-Alexandra Glezakou, Grant E. Johnson
Publikováno v:
Nanoscale. 15:5786-5797
The vibrational and electronic properties of supported polyoxometalates determine their suitability for potential applications as molecular qubits.
Autor:
Tanya L. Myers, Bruce E. Bernacki, Michael J. Wilhelm, Karissa L. Jensen, Timothy J. Johnson, Oliva M. Primera-Pedrozo, Russell G. Tonkyn, Steven C. Smith, Sarah D. Burton, Ashley M. Bradley
Publikováno v:
Physical Chemistry Chemical Physics. 24:22206-22221
This paper investigates the accuracy of deriving the composite optical constants of binary mixtures from only the complex indices of refraction of the neat materials. These optical constants enable the reflectance spectra of the binary mixtures to be
Autor:
Steven C. Smith, Tanya L. Myers, Bruce E. Bernacki, Oliva M. Primera-Pedrozo, Russell G. Tonkyn, Ashley M. Bradley, Timothy J. Johnson
Publikováno v:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXII.
Binary mixtures of liquids may be encountered in industrial or remote sensing scenarios and present challenges to positive identification compared to neat single-component liquids. Our investigation examines whether one can predict the optical proper
Autor:
Madeline M. Zumbach, Nikhil Mirjankar, Benjamin Paul Wilkins, Zachary C. Kennedy, Carlos G. Fraga, Oliva M. Primera-Pedrozo, Angel S. Breton-Vega
Publikováno v:
Forensic Chemistry. 20:100260
Dimethyl methylphosphonate (DMMP) was used as a simulant to investigate the sorption and desorption of G-series nerve agents such as sarin (GB) released into an office space. DMMP was disseminated systematically as an aerosol and vapor on three commo
Autor:
Sandra Natalia Correa-Torres, Samuel P. Hernández-Rivera, G. M. Herrera-Sandoval, Oliva M. Primera-Pedrozo, D. B. Baez-Angarita
Publikováno v:
Materials Sciences and Applications. :179-185
The synthesis and characterization of a new nanocomposite material that was prepared from recycled expanded polystyrene (EPS) and titanium dioxide (TiO2) is reported here. The EPS was obtained from chemical reagent box insulation. To obtain the nanoc
Autor:
Oliva M. Primera-Pedrozo, Samuel P. Hernández-Rivera, Hilsamar Félix-Rivera, Jorge Castellanos, Gabriela Rodriguez, Oscar Resto
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 87:77-85
This work focused on establishing the parameters for enhancing the Raman signals of DNA and RNA constituents: nitrogenous bases, nucleosides and nucleotides, using metallic nanoparticles as surface enhanced Raman scattering substrates. Silver nanosph
Autor:
Leonardo C. Pacheco-Londoño, Samuel P. Hernández-Rivera, O.E. Rivera-Betancourt, Oliva M. Primera-Pedrozo
Publikováno v:
IEEE Sensors Journal. 10:699-706
Cu colloidal suspensions were prepared by wet chemistry methods: chemical reduction using trisodium citrate. Steadiness varied under conditions such as stirring rate, rate of addition of reducing agent, and temperature control. Sizes of nanoparticles
Autor:
Leonardo C. Pacheco-Londoño, Samuel P. Hernández-Rivera, Oliva M. Primera-Pedrozo, Yadira M. Soto-Feliciano
Publikováno v:
Sensing and Imaging: An International Journal. 10:1-13
Fiber Optic Coupled Reflection/Absorption Infrared Spectroscopy (RAIRS) has been investigated as a potential technique for developing methodologies of detection and quantification of explosive residues on metallic surfaces. TNT, DNT, HMX, PETN, and T
Autor:
Oliva M. Primera-Pedrozo, Yadira M. Soto-Feliciano, Leonardo C. Pacheco-Londoño, Samuel P. Hernández-Rivera
Publikováno v:
Sensing and Imaging: An International Journal. 9:27-40
Fourier Transform Infrared Spectroscopy operating in Reflection–Absorption mode has been demonstrated as a potential spectroscopic technique to develop new methodologies for detection of chemicals deposited on metallic surfaces. Mid-IR transmitting
Autor:
Leonardo C. Pacheco-Londoño, Tatiana Luna-Pineda, E. De La Cruz-Montoya, Oliva M. Primera-Pedrozo, Jackeline I. Jerez-Rozo, Samuel P. Hernández-Rivera
Publikováno v:
IEEE Sensors Journal. 8:963-973
Nanotechnology based detection of threat agents, such as explosives and biological agents, has been a top research priority at the Center for Chemical Sensors Development at the Department of Chemistry of the University of Puerto Rico-Mayaguez (UPRM)