Stanford Synchrotron Radiation Lightsource

Research/Professional Focus

• Interdisciplinary research in nanoscience on (1) energy-related materials, correlating nanostructure and chemical state ex situ, in situ and in operando, for improvement of performance and (2) uptake and transformation of metals and nanoparticles in environmental samples. Speciation of heavy metals using X-ray absorption spectroscopy (XAS), scanning x-ray fluorescence and full field hard x-ray transmission microscopy as well as other methods.
• Lead Transmission X-ray Microscopy (TXM) program at SSRL. Led development of spectroscopic imaging, and in situ imaging of energy materials and catalytic systems.

Professional Preparation

Appointments

Highlighted Professional Activities and Awards

• UC Berkeley University Fellowship 1989-1992
• Awardee, CSU Doctoral Incentive Program 1989-92
• Outstanding Graduate Instructor Award UC Berkeley 1989
• Review Panel, Center for Nanoscale Materials, Argonne National Laboratory, 2011-present
• Proposal Review Committee, Advanced Light Source 2011-present
• Chair, SSRL Users Executive Committee (2006)
• Chair, Synchrotron and Neutron Users Group (SNUG; www.snugroups.org) (2005-2008) Science advocacy, presenting science for non-scientists
• Member, Materials Research Society (2003-present) & American Chemical Society (1989-Present)

Publications

"TXM-Wizard: a program for advanced data collection and evaluation in full-field transmission X-ray microscopy”, Y Liu, F Meirer, PA Williams, J Wang, JC Andrews*, P Pianetta (2012) J. Synchrotron Rad, in press.

“3D imaging of chemical phase transformations at the nanoscale with full field transmission X-ray microscopy”, F Meirer, J Cabana, Y Liu, A Mehta, JC Andrews*, P Pianetta (2011) J. Synchrotron Rad 18, 773-781.

“Phase Retrieval using polychromatic illumination for Transmission X-ray Microscopy”, Y Liu, JC Andrews, J Wang, F Meirer, P Zhu, Z Wu, P Pianetta (2011) Optics Express 19:540-545.

"Three Dimensional Mapping of Nickel Oxidation States using Full Field X-ray Absorption Near Edge Structure Nanotomography", GJ Nelson, WM Harris, JR Izzo, Jr., KN Grew, WKS Chiu, YS Chu, J Yi, JC Andrews, Y Liu, P Pianetta (2011"Comparison of SOFC Cathode Microstructure Quantified using Xray Nanotomography and Focused Ion Beam Scanning", GJ Nelson, WM Harris, JJ Lombardo, JR Izzo, Jr., WKS Chiu, P Tanasini, M Cantoni, J van Herle, C Comninellis, JC Andrews, Y Liu, P Pianetta, YS Chu (2011) Electrochem. Commun. 13: 586-589. 

“Complexation of Hg with phytochelatins is important for plant Hg tolerance”, S Carrasco-Gil, A Alvarez-Fernandez, J Sobrino-Plata, R Millan, RO Carpena-Ruiz,  DL LeDuc, JC Andrews, J Abadia, LE Hernandez (2011) Plant Cell  Environ 34: 778-791.

“Transmission X-ray microscopy for full-field nano-imaging of biomaterials”, JC Andrews*, F Meirer, Y Liu, P Pianetta (2011) Invited review paper, Microsc Res Tech 74:671-681.

"Arsenic localization, speciation, and co-occurrence with iron on rice (Oryza sativa L.) roots", AL Seyfferth, SE Webb, JC Andrews, S Fendorf  (2010) Environ Sci Technol 44: 8108-8113.

Nanoscale X-ray Microscopic Imaging of Mammalian Mineralized Tissue”, JC Andrews*, E Almeida, MCH van der Meulen, JS Alwood, C Lee, Y Liu, J Chen, F Meirer, M Feser, J Gelb, J Rudati, A Tkachuk, W Yun, P Pianetta (2010) J Microsc Microanal 16: 327-336.

“3D nanoscale imaging of the yeast, Schizosaccharomyces pombe, by full-field transmission x-ray microscopy at 5.4 keV”, J Chen, Y Yang, X Zhang, JC Andrews, P Pianetta, Y Guan, G Liu, Y Xiong, Z Wu, Y Tian (2010) Anal Bioanal Chem 397: 2117-2121.

“Using X-ray Microscopy and Hg L₃ XANES to study Hg Binding in the Rhizosphere of Spartina Cordgrass”, C Patty, B Barnett, B Mooney, A Kahn, S Levy, Y Liu, P Pianetta, JC Andrews* (2009) Environ Sci Technol 43: 7397-7402.

“Hg L3 XANES Study of Mercury Methylation in Shredded Eichhornia crassipes”, M Rajan, J Darrow, M Hua, B Barnett, M Mendoza, BK Greenfield and JC Andrews* (2008) Environ Sci Technol 42: 5568-5573.

“Mechanical Shredding of Water Hyacinth (Eichhornia crassipes): Effects on Water Quality in the Sacramento-San Joaquin River Delta, California”, B Greenfield, G S Siemering, JC Andrews, M Rajan, SP Andrews Jr., DF Spencer (2007) Estuaries Coasts 30: 627-640.

“Mercury Speciation in the Environment Using X-ray Absorption Spectroscopy”, JC Andrews* Invited Review (2006) Struc Bond 120: 1-35.

“Mercury L3 and Sulfur K-edge studies of Hg-bound thiacrowns and back-extracting agents used in mercury remediation”, K Ito, AT Ta, DB Bishop, AJ Nelson, JG Reynolds, JC Andrews*; Inv. paper (2005) Microchem. J 81: 3-11.

“X-ray Absorption Spectroscopy of Thiacrown Complexes Used in the Remediation of Mercury Contaminated Water”,  DB Bishop, G D McCool, AJ Nelson, JG Reynolds, TF Baumann, GA Fox, JG DeWitt, JC Andrews*; invited paper (2002) Microchem J 71: 247-254. 

“An X-ray Absorption Spectroscopic Investigation of the Nature of the Zinc Complex Accumulated in Datura innoxia Plant Tissue Culture”, RA Kelly, JC Andrews, JG DeWitt; inv. paper (2002) Microchem J 71: 231-245.

“Field, Laboratory and X-ray Absorption Spectroscopic Studies of Mercury Accumulation by Water Hyacinths”,  SG Riddle, HH Tran, JG DeWitt, JC Andrews* (2002) Environ Sci Technol 36: 1965-1970.

“Chlorine K-edge X-ray Absorption Spectroscopy as a probe of Chlorine-Manganese Bonding:  Model Systems with Relevance to the Oxygen Evolving Complex in Photosystem II", A Rompel, JC Andrews, RM Cinco, MW Wemple, G Christou, NA Law, VL Pecoraro, K Sauer, VK Yachandra, MP Klein (1997)  J Am Chem Soc 119: 4465-4470.

“Oxidation State Changes of the Manganese Cluster in the Flash-induced S-states in Photosystem II”, TA Roelofs, W Liang, MJ Latimer, R Cinco, A Rompel, JC Andrews, VK Yachandra, K Sauer,  MP Klein (1996) Proc Nat Acad Sci 93: 3335-3340.

“Photosynthetic Water Oxidation:  Structural Insights to the Catalytic Manganese Complex”,  JC Andrews, R Cinco, H Dau, MJ Latimer, W Liang, TA Roelofs, A Rompel, K Sauer, VK Yachandra, MP Klein (1995) Physica B 209: 657-659.

“A Structural Model for the Photosynthetic Oxygen-Evolving Manganese Cluster”, JC Andrews, H Dau, MJ Latimer, W Liang, TA Roelofs, A Rompel, K Sauer, VK Yachandra, MP Klein (1995) J Inorg Biochem 59: 611.

“Structural Consequences of Ammonia Binding to the Manganese Center of the                Photosynthetic Oxygen Evolving Complex: An X-ray Absorption Spectroscopy Study on Isotropic and Oriented Photosystem II Particles”, H Dau, JC Andrews, TA Roelofs,  MJ Latimer, W Liang, K Sauer, MP Klein (1995) Biochemistry 34: 5274-5287.

“Orientation of the Oxygen-Evolving Manganese Complex in a Photosystem II Membrane Preparation:  An X-ray  Absorption Spectroscopy Study”, I Mukerji, JC Andrews, VJ DeRose, MJ Latimer, VK Yachandra, K Sauer , MP Klein (1994) Biochemistry 33: 9712-9721.

Conference Proceedings

“3D Imaging of Nickel Oxidation States using Full Field X-ray Absorption Near Edge Structure Nanotomography” GJ Nelson, WM Harris, JR Izzo Jr, KN Grew, WKS Chiu, YS Chu, J Yi, JC Andrews, Y Liu, P Pianetta (2011) ECS Transactions 35: 1315-1321.

“Applications of hard X-ray full-field transmission X-ray microscopy at SSRL”, Y Liu, JC Andrews*, F Meirer, A Mehta, S Carrasco Gil, P Sciau, A Mester, P Pianetta (2011) AIP Conference Proceedings 1365: 357-360. XRM 2010 Conference Proceedings.

"Hard X-ray Full Field Nano-imaging of Bone and Nanowires at SSRL", JC Andrews*, P Pianetta, F Meirer, J Chen, E Almeida, MCH van der Meulen, JS Alwood, C Lee, J Zhu, Y Cui (2010) SRI Conf. Proceedings, J Physics 1234:79-82.

“Full-field transmission x-ray microscopy at SSRL”, JC Andrews*, S Brennan, P Pianetta, H Ishii, J Gelb, M Feser, J Rudati, A Tkachuk, W Yun (2009) J Phys Conf Series 186: 012081.

“Full-field transmission x-ray microscopy for bio-imaging”, JC Andrews*, S Brennan, Y Liu, P Pianetta, EAC Almeida, MCH van der Meulen, Z Wu, Z Mester, L Ouerdane, J Gelb, M Feser, J Rudati, A Tkachuk, W Yun (2009) J Phys Conf Series 186: 012002.

“Field, Lab and X-ray Absorption Spectroscopic Studies of Mercury Absorbed by Water Hyacinths”,  JC Andrews*, SG Riddle, HH Tran, C Kitting, JG DeWitt (2001) ACS Div Environ Chem Preprints Ext Abstracts 41: 452-457.

Books / Chapters/ Reports

“The Chemistry of Water”, S. Kegley & JC Andrews (1997) University Science Books, Sausalito, CA.

“Recent Advances Toward a Structural Model for the Photosynthetic Oxygen-Evolving Manganese Cluster”, M J Latimer, H Dau, W Liang, JC Andrews, T A Roelofs, R M Cinco, A Rompel, K Sauer, V K Yachandra, M P Klein (1996) In: Applications of Synchrotron Radiation in Industrial, Chemical and Materials Science (Eds. L. Terminello, K. L. D’Aminco, D. Shuh.) Plenum, New York, p 141-148.

“A High Resolution, Hard X-ray Bio-imaging Facility at SSRL”, JC Andrews*, S Brennan, C Patty, K Leuning, P Pianetta, E Almeida, MCH van der Meulen, M Feser, J Gelb, J Rudati, A Tkachuk, WB Yun (2008) Synchr Radiat News 21: 17-26. 

“Aquatic Pesticide Monitoring Program Nonchemical Alternatives Year 3 Final Report”, BK Greenfield, N David, GS Siemering, TP McNabb, DS Spencer, SP Andrews, JC Andrews, M Rajan, V Howard, M Sytsma, S Earnshaw, LWJ Anderson (2005) APMP Technical Report Contribution 390. San Francisco Estuary Institute, Oakland, CA.

“Uptake of Mercury from Roots to Shoots of Eichhornia crassipes studied with Hg L3 XAS”, SG Riddle, HH Tran, JG DeWitt, JC Andrews (1999) Stanford Synchrotron Radiation Laboratory Activity Report.

“Nickel Speciation in Datura innoxia:  A XANES Study”, E Cooper, JC Andrews and JG DeWitt (1999) SSRL Activity Report.

“Changes in Nickel and Lead Speciation Upon Accumulation by Metal Tolerant Datura Innoxia Plant Tissue Culture”, E Cooper, D Hjulberg, J Villal, JC Andrews and JG DeWitt (1997) SSRL Activity Report.