Suman Pokhrel, Ph.D.

Articles, Patents

2012

Kemmler, J.A., Pokhrel, S., Birkenstock, J., Schowalter, M., Rosenauer, A., Bârsan, N., Weimar, U., Mädler, L. "Quenched, nanocrystalline In4Sn3O12 high temperature phase for gas sensing applications", Sensors and Actuators B: Chemical, 161 (1) 740-747 (2012). http://dx.doi.org/10.1016/j.snb.2011.11.026

2011

Damoiseaux, R., George, S., Li, M., Pokhrel, S., Ji, Z., France, B., Xia, T., Suarez, E., Rallo, R., Mädler, L., Cohen, Y., Hoek, E.M.V., Nel, A. "No time to lose-high throughput screening to assess nanomaterial safety", Nanoscale, 3 (4) 1345-1360 (2011). http://dx.doi.org/10.1039/C0NR00618A

Fairbairn, E.A., Keller, A.A., Mädler, L., Zhou, D., Pokhrel, S., Cherr, G.N. "Metal oxide nanomaterials in seawater: Linking physicochemical characteristics with biological response in sea urchin development", Journal of Hazardous Materials, 192 (3) 1565-1571 (2011). http://dx.doi.org/10.1016/j.jhazmat.2011.06.080

George, S., Pokhrel, S., Ji, Z., Henderson, B.L., Xia, T., Li, L., Zink, J.I., Nel, A.E., Mädler, L. "Role of Fe Doping in Tuning the Band Gap of TiO2 for the Photo-Oxidation-Induced Cytotoxicity Paradigm", J. Am. Chem. Soc., 133 (29) 11270-11278 (2011). http://dx.doi.org/10.1021/ja202836s

Hübner, M., Simion, C.E., Tomescu-Stanoiu, A., Pokhrel, S., Bârsan, N., Weimar, U. "Influence of humidity on CO sensing with p-type CuO thick film gas sensors", Sensors and Actuators B: Chemical, 153 (2) 347-353 (2011). http://dx.doi.org/10.1016/j.snb.2010.10.046

Li, M., Pokhrel, S., Jin, X., Mädler, L., Damoiseaux, R., Hoek, E.M.V. "Stability, Bioavailability, and Bacterial Toxicity of ZnO and Iron-Doped ZnO Nanoparticles in Aquatic Media", Environmental Science & Technology, 45 (2) 755-761 (2011). http://dx.doi.org/10.1021/es102266g

Lin, S., Zhao, Y., Xia, T., Meng, H., Ji, Z., Liu, R., George, S., Xiong, S., Wang, X., Zhang, H., Pokhrel, S., Mädler, L., Damoiseaux, R., Lin, S., Nel, A.E. "High Content Screening in Zebrafish Speeds up Hazard Ranking of Transition Metal Oxide Nanoparticles", ACS Nano, 5 (9) 7284-7295 (2011). dx.doi.org/10.1021/nn202116p

Minnermann, M., Pokhrel, S., Thiel, K., Henkel, R., Birkenstock, J., Laurus, T., Zargham, A., Flege, J.-I., Zielasek, V., Piskorska-Hommel, E., Falta, J., Mädler, L., Bäumer, M. "Role of Palladium in Iron Based Fischer-Tropsch Catalysts Prepared by Flame Spray Pyrolysis", The Journal of Physical Chemistry C, 115 (4) 1302-1310 (2011). http://dx.doi.org/10.1021/jp106860d

Thomas, C.R., George, S., Horst, A.M., Ji, Z., Miller, R.J., Peralta-Videa, J.R., Xia, T., Pokhrel, S., Mädler, L., Gardea-Torresdey, J.L., Holden, P.A., Keller, A.A., Lenihan, H.S., Nel, A.E., Zink, J.I. "Nanomaterials in the Environment: From Materials to High-Throughput Screening to Organisms", ACS Nano, 5 (1) 13-20 (2011). http://dx.doi.org/10.1021/nn1034857

Xia, T., Zhao, Y., Sager, T., George, S., Pokhrel, S., Li, N., Schoenfeld, D., Meng, H., Lin, S., Wang, X., Wang, M., Ji, Z., Zink, J.I., Mädler, L., Castranova, V., Lin, S., Nel, A.E. "Decreased Dissolution of ZnO by Iron Doping Yields Nanoparticles with Reduced Toxicity in the Rodent Lung and Zebrafish Embryos", ACS Nano, 5 (2) 1223-1235 (2011). http://dx.doi.org/10.1021/nn1028482

Xiao, J., Kuc, A., Pokhrel, S., Schowalter, M., Rosenauer, A., Frauenheim, T., Mädler, L., Pettersson, L.G.M., Heine, T. "Evidence for Fe2+ in Wurtzite coordination: iron doping stabilizes ZnO nanoparticles", Small, 7 (20) 2879-2886 (2011). http://dx.doi.org/10.1002/smll.201100963

2010

Barsan, N., Simion, C., Heine, T., Pokhrel, S., Weimar, U. "Modeling of sensing and transduction for p-type semiconducting metal oxide based gas sensors", J. Electroceram., 25 (1) 11-19 (2010). http://dx.doi.org/10.1007/s10832-009-9583-x

George, S., Pokhrel, S., Xia, T., Gilbert, B., Ji, Z., Schowalter, M., Rosenauer, A., Damoiseaux, R., Bradley, K.A., Mädler, L., Nel, A.E. "Use of a Rapid Cytotoxicity Screening Approach To Engineer a Safer Zinc Oxide Nanoparticle through Iron Doping", ACS Nano, 4 (1) 15-29 (2010). http://dx.doi.org/10.1021/nn901503q

Pokhrel, S., Birkenstock, J., Schowalter, M., Rosenauer, A., Mädler, L. "Growth of Ultrafine Single Crystalline WO3 Nanoparticles Using Flame Spray Pyrolysis", Cryst. Growth Des., 10 (2) 632-639 (2010). http://dx.doi.org/10.1021/cg9010423

Pokhrel, S., Nagaraja, K.S. "Spectroscopic and thermal characterization of tetrathiomolybdate-organic amine homologous systems", Journal of Alloys and Compounds, 495 (1) 131-137 (2010). http://dx.doi.org/10.1016/j.jallcom.2010.01.101

2009

http://dx.doi.org/10.1007/s10832-009-9583-x

Djerdj, I., Haensch, A., Koziej, D., Pokhrel, S., Barsan, N., Weimar, U., Niederberger, M. "Neodymium Dioxide Carbonate as a Sensing Layer for Chemoresistive CO2 Sensing", Chem. Mat., 21 (22) 5375-5381 (2009). http://dx.doi.org/10.1021/cm9013392

Pokhrel, S., Nagaraja, K.S. "Photogalvanic behaviour of [Cr2O2S2(1-Pipdtc)2(H2O)2] in aqueous DMF", Solar Energy Materials and Solar Cells, 93 (2) 244-248 (2009). http://dx.doi.org/10.1016/j.solmat.2008.10.007

Pokhrel, S., Simion, C.E., Teodorescu, V.S., Barsan, N., Weimar, U. "Synthesis, Mechanism, and Gas-Sensing Application of Surfactant Tailored Tungsten Oxide Nanostructures", Advanced Functional Materials, 19 (11) 1767-1774 (2009). http://dx.doi.org/10.1002/adfm.200801171

Pokhrel, S., Xia, T., Kovochich, M., Liong, M., Schowalter, M., Rosenauer, A., Gilbert, B., Zink, J.I., Nel, A.E., Mädler, L. "Comparison of the mechanism of toxicity of binary and mixed binary metal oxide nanoparticles based on dissolution and oxidative stress properties", Chemie Ingenieur Technik, 81 (8) 1167-1167 (2009). dx.doi.org/10.1002/cite.200950629

Pokhrel, S., Zhao, H., Gao, S., Huo, L. "A single pot synthesis of crystalline and porous Ni-Pt sponges", Journal of Alloys and Compounds, 480 (2) 830-833 (2009). http://dx.doi.org/10.1016/j.jallcom.2009.02.084

2008

Pokhrel, S., Huo, L., Zhao, H., Gao, S. "Solid-state electrical conductivity and alcohol sensing properties of radio frequency sputtered thin films of Ti4+ doped eskolaite Cr2O3 derived from citrate combustion technique", Thin Solid Films, 516 (10) 3332-3337 (2008). http://dx.doi.org/10.1016/j.tsf.2007.10.094

Pokhrel, S., Huo, L., Zhao, H., Gao, S. "Triangular network of crystalline submicron rutile TiO2 block assembly: An alcohol sensor", Sensors and Actuators B: Chemical, 129 (1) 18-23 (2008). http://dx.doi.org/10.1016/j.snb.2007.07.063

Pokhrel, S., Simion, C.E., Quemener, V., Bârsan, N., Weimar, U. "Investigations of conduction mechanism in Cr2O3 gas sensing thick films by ac impedance spectroscopy and work function changes measurements", Sensors and Actuators B: Chemical, 133 (1) 78-83 (2008). http://dx.doi.org/10.1016/j.snb.2008.01.054

2007

Pokhrel, S., Huo, L., Zhao, H., Gao, S. "Thick film of LaCr1-xTixO3 (x <= 0.4) perovskites prepared by combustion technique for alcohol sensing application", Sensors and Actuators B: Chemical, 122 (1) 321-327 (2007). http://www.dx.doi.org/10.1016/j.snb.2006.06.003

Pokhrel, S., Huo, L., Zhao, H., Gao, S. "Sol-gel derived polycrystalline Cr1.8Ti0.2O3 thick films for alcohols sensing application", Sensors and Actuators B: Chemical, 120 (2) 560-567 (2007). http://dx.doi.org/10.1016/j.snb.2006.03.008

Pokhrel, S., Li, X., Huo, L., Zhao, H., Cheng, X. "Investigation and characterization of radio frequency sputtered Cr1.8Ti0.2O3-[delta] thin films derived by citrate, sol-gel and solid state routes", Thin Solid Films, 515 (18) 7053-7058 (2007). http://dx.doi.org/10.1016/j.tsf.2007.01.057

Pokhrel, S., Ming, Y., Huo, L., Zhao, H., Gao, S. "Cr2-xTixO3 (x <= 0.5) as CH3COCH3 sensitive resistors", Sensors and Actuators B: Chemical, 125 (2) 550-555 (2007). http://dx.doi.org/10.1016/j.snb.2007.02.055

2006

Pokhrel, S., Nagaraja, K.S. "Refinement, comparisonal study and EPR measurements on the molecular structure of NN-diethyldithiocarbamate of Zn(II) and Cd(II)", Crystal Research and Technology, 41 (12) 1246-1250 (2006). http://dx.doi.org/10.1002/crat.200610758

Pokhrel, S., Nagaraja, K.S. "Vapor pressure measurements of chromium dithiocarbamates", Materials Letters, 60 (5) 621-625 (2006). http://10.1016/j.matlet.2005.09.048

2005 and earlier

Pokhrel, S., Dhakshinamoorthy, A., Sundaram, R., Nagaraja, K.S. "Crystal growth and characterization of PbI2-AgI binary system", Crystal Research and Technology, 40 (8) 752-756 (2005). http://dx.doi.org/10.1002/crat.200410424

Pokhrel, S., Nagaraja, K.S., Varghese, B. "Preparation, characterization, and X-ray structure analysis of 1,4-diazabicyclo2,2,2-octane (DABCO) and ammonium cation with tetrathiomolybdate anion", J. Struct. Chem., 45 (5) 900-905 (2004). http://dx.doi.org/10.1007/s10947-005-0076-8

Pokhrel, S., Dhakshinamoorthy, A., Jayaraman, K., Pragasam, J., Nagaraja, K.S. "Crystal growth, thermal analyses and electrical conductivity of CdCl2-PbCl2 system", J. Cryst. Growth, 252 (4) 511-516 (2003). http://dx.doi.org/10.1016/s0022-0248(03)00965-5

Pokhrel, S., Jeyaraj, B., Nagaraja, K.S. "Humidity-sensing properties of ZnCr2O4-ZnO composites", Materials Letters, 57 (22-23) 3543-3548 (2003). http://dx.doi.org/10.1016/s0167-577x(03)00122-8

Pokhrel, S., Nagaraja, K.S. "Electrical and humidity sensing properties of molybdenum(VI) oxide and tungsten(VI) oxide composites", Phys. Status Solidi A-Appl. Res., 198 (2) 343-349 (2003). http://dx.doi.org/10.1002/pssa.200306606

Pokhrel, S., Nagaraja, K.S. "Electrical and humidity sensing properties of composites prepared from MnO2 and MnCr2O4", Trans. Indian Inst. Met., 56 (4) 351-355 (2003).

Pokhrel, S., Nagaraja, K.S. "Electrical and humidity sensing properties of Chromium(III) oxide-tungsten(VI) oxide composites", Sens. Actuator B-Chem., 92 (1-2) 144-150 (2003). http://dx.doi.org/10.1016/s0925-4005(03)00251-x

Pokhrel, S., Nagaraja, K.S., Varghese, B. "Preparation, characterization, and X-ray structure analysis of diethylenetriammonium tetrathiomolybdate", J. Chem. Crystallogr., 33 (11) 903-908 (2003). http://dx.doi.org/10.1023/A:1027470115878

Pokhrel, S., Nagaraja, K.S., Varghese, B. "Synthesis, characterization, and X-ray diffraction analysis of triethylenetetra-ammonium tetrathiomolybdate", J. Struct. Chem., 44 (4) 689-694 (2003). http://dx.doi.org/10.1023/B:JORY.0000017946.18501.fb

Pokhrel, S., Nagaraja, K.S. "Solid state electrical conductivity and humidity sensing properties of Cr2O3-MoO3 composites", Phys. Status Solidi A-Appl. Res., 194 (1) 140-146 (2002). 3.0.CO;2-C>http://dx.doi.org/10.1002/1521-396X(200211)194:1<140::AID-PSSA140>3.0.CO;2-C