@article{adams_vinueza_romanyuk_gordeev_paskova_ivanisevic_2019, title={Nanostructured GaOOH modified with reactive yellow, red and blue water-soluble dyes}, volume={9}, ISSN={["2158-3226"]}, DOI={10.1063/1.5080353}, abstractNote={Water soluble reactive dyes are used to modify nanostructured GaOOH. The resulting particles showed excellent stability in water solutions. The materials were characterized by Scanning electron microscopy (SEM) and X-ray Photoelectron Spectroscopy (XPS) to assess changes due to the dye functionalization. SEM revealed changes in size after dye modification. XPS confirmed the presence of the dyes on the nanostructured materials and assessed changes in functional groups due to use of different type of modification and concentrations of dyes. The reported approach to stabilize the nanostructured GaOOH provides a simple and environmentally friendly route to tune the properties of wide band gap semiconductor materials.}, number={2}, journal={AIP ADVANCES}, author={Adams, W. Taylor and Vinueza, Nelson R. and Romanyuk, Oleksandr and Gordeev, Ivan and Paskova, Tania and Ivanisevic, Albena}, year={2019}, month={Feb} }
 @article{adams_ivanisevic_2019, title={Nanostructured Oxides Containing Ga: Materials with Unique Properties for Aqueous-Based Applications}, volume={4}, ISSN={["2470-1343"]}, DOI={10.1021/acsomega.9b00461}, abstractNote={Oxides containing Ga have been studied by various research communities due to their stability under harsh conditions as well as conductivity and luminescence properties. Nanostructured forms of such oxides can be fabricated by a variety of methods. Advances in synthesis approaches have focused on control over size and shape that can permit adaptation in applied interfaces related to medicine, energy, and the environment. Chemical functionalization can enhance the stability of nanostructured oxides containing Ga in aqueous solutions. In this prospective, we summarize progress in making these materials as well as functionalizing them in water solutions. The prospective also identifies future opportunities with these materials in applied and fundamental materials chemistry research.}, number={4}, journal={ACS OMEGA}, author={Adams, W. Taylor and Ivanisevic, Albena}, year={2019}, month={Apr}, pages={6876–6882} }
 @article{adams_nolan_ivanisevic_2018, title={Ga Ion-Enhanced and Particle Shape-Dependent Generation of Reactive Oxygen Species in X-ray-Irradiated Composites}, volume={3}, ISSN={["2470-1343"]}, DOI={10.1021/acsomega.8b00524}, abstractNote={The reported results test the effects of the collective behavior hypothesized to contribute to the production of more reactive oxygen species (ROS) in vitro and result in an enhanced radiosensitization. The role of particle shape in composites with gallium oxyhydroxide (GaOOH) particles and Matrigel is studied. Particles of two different shapes are embedded into the gel to understand only the materials effect on the generation of ROS rather than cell penetrating variations. The paper reports materials characterization by scanning electron microscopy and X-ray diffraction. The stability of the particles within the composite is assessed by quantification of leached metal using inductively coupled plasma mass spectrometry. The amount of ROS in each construct under variable radiation conditions is quantified in the presence and absence of PC12 cells seeded on top of the composites. The viability of cells is also recorded under different in vitro conditions. The collective materials characterization and the results from the bioassays are used to explain the role of anisotropy on the radiosensitization of nanostructures containing Ga. The presence of Ga ions in composites can have a radiosensitizing effect, and the amount of the available Ga3+ determines the magnitude of the radiosensitization. The shape of the particles determines the stability in aqueous solutions and release of Ga3+ that triggers ROS production. The concentration and shape of Ga-containing materials can be combined to generate an additive effect by increasing the amount of available free metal ions in solution. The studies with GaOOH containing composites enable one to explore the role of key parameters that lead to an increased efficiency of radiation treatments.}, number={5}, journal={ACS OMEGA}, author={Adams, W. T. and Nolan, Michael W. and Ivanisevic, Albena}, year={2018}, month={May}, pages={5252–5259} }