Submissions from 2014
Reducing the Effects of Shot Noise Using Nanoparticles, Moshood K. Morakinyo and Shankar B. Rananavare
Low-Temperature Nitrogen Doping in Ammonia Solution for Production of N-Doped TiO2-Hybridized Graphene as a Highly Efficient Photocatalyst for Water Treatment, Wen Qian, P. Alex Greaney, Simon Fowler, Sheng-Kuei Chiu, Andrea M. Goforth, and Jun Jiao
The Effect of Regioisomerism on the Coordination Chemistry and CEST Properties of lanthanide(III) NB-DOTA-Tetraamide Chelates, Jacqueline R. Slack and Mark Woods
Inhalable Constituents of Thirdhand Tobacco Smoke: Chemical Characterization and Health Impact Considerations, Mohamad Sleiman, Jennifer M. Logue, Wentai Luo, James F. Pankow, Lara A. Gundel, and Hugo Destaillats
Water Cooling Method to Improve the Performance of Field-Mounted, Insulated, and Concentrating Photovoltaic Modules, Matthew K. Smith, Hanny Selbak, Carl C. Wamser, Nicholas U. Day, Matthew Krieske, David J. Sailor, and Todd Rosenstiel
Hyperporphyrin Effects in the Spectroscopy of Protonated Porphyrins with 4-Aminophenyl and 4-Pyridyl Meso Substituents, Chenyi Wang and Carl C. Wamser
The Confluence of Structure and Dynamics in Lanthanide(III) Chelates: How Dynamics Help Define Structure in Solution, Benjamin Charles Webber and Mark Woods
Human Whole-Blood (1)H2O Longitudinal Relaxation With Normal and High-Relaxivity Contrast Reagents: Influence of Trans-Cell-Membrane Water Exchange, Gregory J. Wilson, Mark Woods, Charles S. Springer Jr., Sarah Bastawrous, Puneet Bhargava, and Jeffrey H. Maki
Submissions from 2013
Analysis of Small Molecule Ligands Targeting the HIV-1 Matrix Protein-RNA Binding Site, Ayna Alfadhli, Henry McNett, Jacob Eccles, Seyram Tsagli, Colleen Noviello, Rachel Sloan, Claudia S. López, David H. Peyton, and Eric Barklis
Coupling Fast Water Exchange to Slow Molecular Tumbling in Gd3+ Chelates: Why Faster Is Not Always Better, Stefano Avedano, Mauro Botta, Julian Saunders Haigh, Dario L. Lango, and Mark Woods
Aqueous Red-Emitting Silicon Nanoparticles for Cellular Imaging: Consequences of Protecting Against Surface Passivation by Hydroxide and Water for Stable Red Emission, Sheng-Kuei Chiu, Beth Ann Manhat, William J.I. DeBenedetti, Anna L. Brown, Katye Fichter, Tania Vu, Micah Eastman, Jun Jiao, and Andrea Mitchell Goforth
Partitioning the Fitness Components of RNA Populations Evolving In Vitro, Carolina Diaz Arenas and Niles Lehman
Evolution of Multispectral Aerosol Optical Properties in a Biogenically-Influenced Urban Environment During the CARES Campaign, Madhu Gyawali, W. Patrick Arnott, Rahul A. Zaveri, C. Song, Mikhail Pekour, B. Flowers, Manvendra K. Dubey, Ari Setyan, Qi Zhang, Joseph Harworth, James Gregory Radney, Dean B. Atkinson, S. China, Claudio Mazzoleni, Kyle Gorkowski, R. Subramanian, B. Tom Jobson, and Hans Moosmüller
Identification of Cisplatin-Binding Proteins Using Agarose Conjugates of Platinum Compounds, Takatoshi Karasawa, Martha Sibrian-Vazquez, Robert M. Strongin, and Peter S. Steyger
Picture of a Chelate in Exchange: The Crystal Structure of NaHoDOTMA, a 'Semi'-Hydrated Chelate, Katherine M. Payne, Edward J. Valente, Silvio Aime, Mauro Botta, and Mark Woods
Exfoliated Graphene-Supported Pt and Pt-Based Alloys as Electrocatalysts for Direct Methanol Fuel Cells, Wen Qian, Rui Hau, Jian Zhou, Micah C. Eastman, Beth Ann Manhat, Quang Sun, Andrea M. Goforth, and Jun Jiao
Allosteric Mechanism of Water Channel Gating by Ca2+–calmodulin, Steve Reichow, Daniel M. Clemens, J. Alfredo Freites, Karin L. Németh-Cahalan, Matthias Heyden, Douglas J. Tobias, James E. Hall, and Tamir Gonen
The Dynamic Modulation of Water Permeability in the Lens Aquaporin-0, Steve L. Reichow and Tamir Gonen
Robust Visible Light Photoswitching with Ortho-Thiol Substituted Azobenzenes, Subhas Samanta, Theresa M. McCormick, Simone K. Schmidt, Dwight S. Seferos, and G. Andrew Woolley
Intrinsic Disorder within an AKAP-protein Kinase A Complex Guides Local Substrate Phosphorylation, F. Donelson Smith, Steve L. Reichow, Jessica L. Esseltine, Dan Shi, Lorene K. Langeberg, John D. Scott, and Tamir Gonen
Effects of Natural and Manual Cleaning on Photovoltaic Output, Matthew K. Smith, Carl C. Wamser, Keith E. James, Seth Sinclair Moody, David J. Sailor, and Todd Rosenstiel
Dimethyl Sulfoxide (DMSO) Exacerbates Cisplatin-induced Sensory Hair Cell Death in Zebrafish (Danio rerio), Phillip M. Uribe, Melissa A. Mueller, Julia S. Gleichman, Matthew D. Kramer, Qi Wang, Martha Sibrian-Vazquez, Robert M. Strongin, Peter S. Steyger, Douglas A. Cotanche, and Jonathan I. Matsui
Spectroscopy of Protonated Tetraphenylporphyrins with Amino/Carbomethoxy Substituents: Hyperporphyrin Effects and Evidence for a Monoprotonated Porphyrin, Carl C. Wamser, Alexander B. Rudine, and Brian D. DelFatti
Submissions from 2012
pH-Dependent Synthesis and Stability of Aqueous, Elemental Bismuth Glyconanoparticle Colloids: Potentially Biocompatible X-ray Contrast Agents, Anna L. Brown and Andrea M. Goforth
Differential Effects of the Hydrophobic Surfactant Proteins on the Formation of Inverse Bicontinuous Cubic Phases, Mariya Chavarha, Ryan W. Loney, Kamlesh Kumar, Shankar B. Rananavare, and Stephen B. Hall
A Fast Response Highly Selective Probe for the Detection of Glutathione in Human Blood Plasma, Yixing Guo, Xiaofeng Yang, Lovemore Hakuna, Aabha Barve, Jorge O. Escobedo, Mark Lowry, and Robert M. Strongin
The Chemical Origin of Behavior is Rooted in Abiogenesis, Brian C. Larson, R. Paul Jensen, and Niles Lehman
Evolution Finds Shelter in Small Spaces, Niles Lehman
Advanced Nanohybrid Materials: Surface Modification and Applications, Li-Hung Liu, Rémi Métivier, Shanfeng Wang, and Hui Wang
Reversed Chloroquine Molecules as a Strategy to Overcome Resistance in Malaria, David H. Peyton
Functional Promiscuity of the COG0720 Family, Gabriela Phillips, Laura L. Grochowski, Shilah Bonnett, Huimin Xu, Marc Bailly, Crysten Haas-Blaby, Basma El Yacoubi, Dirk Iwata-Reuyl, Robert H. White, and Valérie de Crécy-Lagard
Diversity of Archaeosine Synthesis in Crenarchaeota, Gabriela Phillips, Manal A. Swairjo, Kirk W. Gaston, Marc Bailly, Patrick A. Limbach, Dirk Iwata-Reuyl, and Valérie de Crécy-Lagard
Surfactant-Free Hybridization of Transition Metal Oxide Nanoparticles With Conductive Graphene for High-Performance Supercapacitor, Wen Qian, Zhiqiang Chen, Steven Cottingham, William Alexander Merrill, Natasja A. Swartz, Andrea Goforth, Tami Lasseter Clare, and Jun Jiao
Complementary Microscopy Techniques Applied for Optimizing the Structure and Performance of Graphene-Based Hybrid, Wen Qian, Zhiqiang Chen, Micah C. Eastman, Steven Cottingham, Beth Ann Manhat, Andrea M. Goforth, and Jun Jiao
Complementary Microscopy Techniques Applied for Optimizing the Structure and Performance of Graphene-Based Hybrids, Wen Quan, Zhiqiang Chen, Micah C. Eastman, Steven Cottingham, Beth Ann Manhat, Andrea M. Goforth, and Jun Jiao
Progress toward red and near-infrared (NIR) emitting saccharide sensors, Martha Sibrian-Vazquez, Jorge O. Escobedo, Mark Lowry, and Robert M. Strongin
Thiol Reactive Probes and Chemosensors, Robert M. Strongin, Lovemore Hakuna, Hanjing Peng, Weixuan Chen, Yunfeng Cheng, and Binghe Wang
Chemical Exchange Saturation Transfer is Unaffected by Modest Changes in Pressure, Benjamin Charles Webber, Christiane A. Carney, and Mark Woods
Structural Analysis of Isomeric Europium(III) Chelates of NB-DOTMA, Benjamin Charles Webber and Mark Woods
A Seminaphthofluorescein-Based Fluorescent Chemodosimeter for the Highly Selective Detection of Cysteine, Xiaofeng Yang, Yixing Guo, and Robert M. Strongin
Overview of the 2010 Carbonaceous Aerosols and Radiative Effects Study (CARES), Rahul A. Zaveri, William J. Shaw, Daniel J. Cziczo, Beat Schmid, Richard Ferrare, M. Lizabeth Alexander, Raul Alvarez, W. Patrick Arnott, Dean B. Atkinson, Sunil Baidar, Robert M. Banta, James Barnard, Josef Beranek, Larry K. Berg, Fred Brechtel, W. Alan Brewer, John F. Cahill, Brian Cairns, Christopher D. Cappa, D. Chand, S. China, Jennifer M. Comstock, Manvendra K. Dubey, Robert C. Easter, M. H. Erickson, Jerome Fast, Cody Floerchinger, B. Flowers, Edward C. Fortner, Jeffrey S. Gaffney, Mary K. Gilles, Kyle Gorkowski, William Gustafson, Madhu Gyawali, J. Hair, R. M. Hardesty, Joseph Harworth, Scott C. Herndon, Naruki Hiranuma, Chris Hostetler, John M. Hubbe, John T. Jayne, H. Jeong, B. Tom Jobson, Evgueni Kassianov, Lawrence I. Kleinman, C. Kluzek, W. Berk Knighton, Katheryn R. Kolesar, Chongai Kuang, Alena Kubátová, Andrew O. Langford, Alexander Laskin, N. Laulainen, Richard D. Marchbanks, Claudio Mazzoleni, Fan Mei, Ryan C. Moffet, Dan Nelson, Michael Obland, Hilke Oetjen, Timothy B. Onasch, I. Ortega, Matteo Ottaviani, Mikhail Pekour, Kimberly A. Prather, James Gregory Radney, Raymond R. Rogers, Scott P. Sandberg, Arthur J. Sedlacek, Christoph J. Senff, Gunnar I. Senum, Ari Setyan, John E. Shilling, ManishKumar Shrivastava, C. Song, Stephen R. Springston, R. Subramanian, Kaitlyn Suski, Jason Tomlinson, Rainer M. Volkamer, H. W. Wallace, Jian Wang, A. M. Weickmann, Douglas R. Worsnop, Xiao-Ying Yu, Alla Zelenyuk, and Qi Zhang
Submissions from 2011
Properties, Solution State Behavior, and Crystal Structures of Chelates of DOTMA, Silvio Aime, Mauro Botta, Zoltán Garda, Benjamin E. Kucera, Gyula Tircso, Victor G. Young, and Mark Woods
Tension Directly Stabilizes Reconstituted Kinetochore-Microtubule Attachments, Bungo Akiyoshi, Krishna K. Sarangapani, Andrew F. Powers, Christian R. Nelson, Steve Reichow, Hugo Arellano-Santoyo, Tamir Gonen, Jeffrey A. Ranish, Charles L. Asbury, and Sue Biggins
HIV-1 Matrix Protein Binding to RNA, Ayna Alfadhli, Henry McNett, Seyram Tsagli, Hans Peter Bachinger, and David H. Peyton
Competition for hydrogen-bond formation in the helix-coil transition and protein folding, A. V. Badasyan, S. A. Tonoyan, Y. S. Mamasakhlisov, A. Giacometti, Albert S. Benight, and V. F. Morozov
Towards the Rational Design of MRI Contrast Agents: δ-Substitution of Lanthanide(III) NB-DOTA-Tetraamide Chelates Influences but Does Not Control Coordination Geometry, Christiane E. Carney, Anh D. Tran, Jing Wang, Matthias C. Schabel, A. Dean Sherry, and Mark Woods
AKAP2 Anchors PKA with Aquaporin-0 to Support Ocular Lens Transparency, Matthew G. Gold, Steve Reichow, Susan E. O'Neill, Chad R. Weisbrod, Lorene K. Langeberg, James E. Bruce, Tamir Gonen, and John D. Scott
Organometallic Iron(III)-Salophene Exerts Cytotoxic Properties in Neuroblastoma Cells via MAPK Activation and ROS Generation, Kyu Kwang Kim, Rakesh K. Singh, Robert M. Strongin, Richard G. Moore, Laurent Brard, and Thilo S. Lange
Detecting Specific Saccharides via a Single Indicator, Soojin Lim, Jorge O. Escobedo, Mark Lowry, and Robert M. Strongin
One-Step Melt Synthesis of Water-Soluble, Photoluminescent, Surface-Oxidized Silicon Nanoparticles for Cellular Imaging Applications, Beth Ann Manhat, Anna L. Brown, Andrea M. Goforth, Labe A. Black, J.B. Alexander Ross, Katye Fichter, Tania Vu, and Erik Richman
Imaging the Extracellular pH of Tumors by MRI after Injection of a Single Cocktail of T1 and T2 Contrast Agents, Gary V. Martinez, Xiaomeng Zhang, María L. García-Martín, David L. Morse, Mark Woods, A. Dean Sherry, and Robert J. Gillies
Positional Control Over Nanoparticle Deposition into Nanoholes, Moshood K. Morakinyo and Shankar B. Rananavare
The Binding of the Cholera Toxin to the Periplasmic Vestibule of the Type II Secretion Channel, Steve Reichow, Konstantin V. Korotkov, Melissa Gonen, Ji Sun, Jaclyn R. Delarosa, Wim GJ Hol, and Tamir Gonen
Modeling Impacts of Roof Reflectivity, Integrated Photovoltaic Panels and Green Roof Systems on Sensible Heat Flux Into the Urban Environment, Adam Scherba, David J. Sailor, Todd Rosenstiel, and Carl C. Wamser
Analysis of the Conformational Behavior and Stability of the SAP and TSAP Isomers of Lanthanide(III) NB-DOTA-Type Chelates, Gyula Tircso, Benjamin Charles Webber, Benjamin E. Kucera, Victor G. Young, and Mark Woods
Bis Photobase Generator, Hoang Tran and Shankar B. Rananavare
Synthesis and Characterization of N- and P- Doped Tin Oxide Nanowires, Hoang Tran and Shankar B. Rananavare
Strategies for Labeling Proteins with PARACEST Agents, Olga Vasalatiy, Piyu Zhao, Mark Woods, Andrei Marconescu, Aminta Castillo-Muzquiz, Philip Thorpe, Garry Kiefer, and A. Dean Sherry
Advances in Structural and Functional Analysis of Membrane Proteins by Electron Crystallography, Goragot Wisedchaisri, Steve Reichow, and Tamir Gonen
Investigations Into Whole Water, Prototropic and Amide Proton Exchange in Lanthanide(III) DOTA-Tetraamide Chelates, Mark Woods, Azhar Pasha, Piyu Zhao, Gyula Tircso, Somdatta Chowdhury, Garry Kiefer, Donald E. Woessner, and A. Dean Sherry
LDL-Based Nanoparticles for Contrast Enhanced MRI of Atheroplaques in Mouse Models, Yoko Yamakoshi, Hui Qiao, Andrew N. Lowell, Mark Woods, Betty Paulose, Yuka Nakao, Hualei Zhang, Ting Liu, Sissel Lund-Katz, and Rong Zhou
Submissions from 2010
Comparison of in Situ and Columnar Aerosol Spectral Measurements during TexAQS-GoMACCS 2006: Testing Parameterizations for Estimating Aerosol Fine Mode Properties, Dean B. Atkinson, Paola Massoli, Norman T. O'Neill, Patricia K. Quinn, Sarah D. Brooks, and Barry Lefer
Microscopic formulation of the Zimm-Bragg model for the helix-coil transition, A. V. Badasyan, A. Giacometti, Y. S. Mamasakhlisov, V. F. Morozov, and Albert S. Benight
Facile Pyrolytic Synthesis of Silicon Nanowires, Joo C. Chan, Hoang Tran, James W. Pattison, and Shankar B. Rananavare
Quasispecies-Like Behavior Observed in Catalytic RNA Populations Evolving in a Test Tube, Carolina Diaz Arenas and Niles Lehman
NIR Dyes for Bioimaging Applications, Jorge O. Escobedo, Oleksandr Rusin, Soojin Lim, and Robert M. Strongin
Structural Diversity and Thermochromic Properties of Iodobismuthate Materials Containing d-Metal Coordination Cations: Observation of a High Symmetry [Bi3I11]2− Anion and of Isolated I− Anions, Andrea M. Goforth, Meredeth A. Tershansy, Mark D. Smith, Leroy Peterson Jr., Jennifer G. Kelley, William J.I. DeBenedetti, and Han-Conrad zur Loye
CEST and PARACEST MR Contrast Agents, Ileana Hancu, W. Thomas Dixon, Mark Woods, Elena Vinogradov, A. Dean Sherry, and Robert E. Lenkinski
Bandwidth tuning triggers interplay of charge order and superconductivity in two-dimensional organic materials, S. Kaiser, M. Dressel, Y. Sun, A. Greco, J. A. Schlueter, Gary L. Gard, and N. Drichko
Complexity Through Recombination: From Chemistry to Biology, Niles Lehman, Carolina Diaz Arenas, Wesley A. White, and Francis J. Schmidt
Selective Fluorescence Detection of Cysteine and N-Terminal Cysteine Peptide Residues, Soojin Lim, Jorge O. Escobedo, Mark Lowry, Xiangyang Xu, and Robert M. Strongin
Biosynthesis of Salinosporamides from α,β-Unsaturated Fatty Acids: Implications for Extending Polyketide Synthase Diversity, Yuan Liu, Christopher Hazzard, Alessandra S. Eustáquio, Kevin A. Reynolds, and Bradley S. Moore
Cooperative Interaction of Transcription Termination Factors with the RNA Polymerase II C-terminal Domain, Bradley M. Lunde, Steve Reichow, Minkyu Kim, Hyunsuk Suh, Thomas C. Leeper, Fan Yang, Hannes Mutschler, Stephen Buratowski, Anton Meinhart, and Gabriele Varani
C - Reactive Protein Induced Rearrangement of Phosphatidylcholine on Nanoparticle Mimics of Lipoprotein Particles, Marilyn R. Mackiewicz, Heather L. Hodges, and Scott M. Reed
The Population of SAP and TSAP Isomers in Cyclen-Based Lanthanide(III) Chelates Is Substantially Affected by Solvent, Kyle J. Miller, Ali A. Saherwala, Benjamin C. Webber, Yunkou Wu, A. Dean Sherry, and Mark Woods
Copper Thin-Film Dissolution/Precipitation Kinetics in Organic HF Containing Cleaning Solution, Nabil George Mistkawi, Makarem A. Hussein, Malgorzata Ziomek-Moroz, and Shankar B. Rananavare
Corrosion Behavior of Copper Thin Films in Organic HF-Containing Cleaning Solution for Semiconductor Applications, Nabil George Mistkawi, Makarem A. Hussein, Malgorzata Ziomek-Moroz, and Shankar B. Rananavare
Minimizing Formaldehyde Use in the Synthesis of Gold−Silver Core−Shell Nanoparticles, Christopher B. Norris, Paul R. Joseph, Marilyn R. Mackiewicz, and Scott M. Reed
Nanoassembled Capsules as Delivery Vehicles for Large Payloads of High Relaxivity Gd3+ Agents, Sally E. Plush, Mark Woods, You-Fu Zhou, Shyam B. Kadali, Michael S. Wong, and A. Dean Sherry
Structure of the Cholera Toxin Secretion Channel in Its Closed State, Steve Reichow, Konstantin V. Korotkov, Wim GJ Hol, and Tamir Gonen
Reaction of Dichloromethane with Pyridine Derivatives under Ambient Conditions, Alexander B. Rudine, Michael G. Walter, and Carl C. Wamser
Homocystamides promote free-radical and oxidative damage to proteins, Martha Sibrian-Vazquez, Jorge O. Escobedo, Soojin Lim, George K. Samoei, and Robert M. Strongin
Scoring Function to Predict Solubility Mutagenesis, Ye Tian, Christopher Deutsch, and Bala Krishnamoorthy
Synthesis and Characterization of Electropolymerized Nanostructured Aminophenylporphyrin Films, Carl C. Wamser and Michael G. Walter
Extensive Aerosol Optical Properties and Aerosol Mass Related Measurements During TRAMP/TexAQS 2006 – Implications for PM Compliance and Planning, Monica Elizabeth Wright, Dean B. Atkinson, Luke Ziemba, Robert Griffin, Naruki Hiranuma, Sarah D. Brooks, James Flynn, Ryan Perna, Bernhard Rappenglück, Winston Luke, and Paul Kelley
Polymeric PARACEST MRI Contrast Agents as Potential Reporters for Gene Therapy, Yunkou Wu, Christiane E. Carney, Michael Denton, Elaine Hart, Piyu Zhao, Daniel N. Streblow, A. Dean Sherry, and Mark Woods
Submissions from 2009
Structural Basis for Binding Specificity Between Subclasses of Modular Polyketide Synthase Docking Domains, Tonia Buchholz, Todd W. Geders, Frank E. Bartley III, Kevin A. Reynolds, Janet L. Smith, and David H. Sherman
DNA Before Proteins? Recent Discoveries in Nucleic Acid Catalysis Strengthen the Case, Aaron Steven Burton and Niles Lehman
Generation of Novel Pikromycin Antibiotic Products Through Mutasynthesis, Shuchi Gupta, Venkatraman Lakshmanan, Beom Seok Kim, Robert Fecik, and Kevin A. Reynolds
Solid State and Solution Dynamics of Pyridine Based Tetraaza- Macrocyclic Lanthanide Chelates Possessing Phosphonate Ligating Functionality (Ln-PCTMB): Effect on Relaxometry and Optical Properties, Garry Kiefer and Mark Woods
Biocompatible Composites of Polyaniline Nanofibers and Collagen, Hooi-Sung Kim, Hugh L. Hobbs, Lian Wang, Micheal J. Rutten, and Carl C. Wamser
Apoptotic and Chemotherapeutic Properties of Iron (III)-Salophene in an Ovarian Cancer Animal Model, Thilo S. Lange, Carolyn McCourt, Rakesh K. Singh, Kyu Kwang Kim, Ajay P. Singh, Brian S. Luisi, Onur Alptürk, Robert M. Strongin, and Laurent Brard
Effect of the Regiochemistry of Butyl Amide Substituents on the Solution-State Structures of Lanthanide(III) DOTA-Tetraamide Complexes, Tomoyasu Mani, Gyula Tircsó, Piyu Zhao, A. Dean Sherry, and Mark Woods
Synthesis and Evaluation of Lanthanide Ion DOTA-tetraamide Complexes bearing Peripheral Hydroxyl Groups, Azhar Pasha, Mai Lin, Gyula Tircso, Cynthia L. Rostollan, Mark Woods, Garry Kiefer, A. Dean Sherry, and Xiankai Sun
Lipid-protein Interactions Probed by Electron Crystallography, Steve L. Reichow and Tamir Gonen
Optimising the Synthesis and Red–Green–Blue Emission of a Simple Organic Dye, Martha Sibrian-Vazquez and Robert M. Strongin
One RNA Plays Three Roles to Provide Catalytic Activity to a Group I Intron Lacking an Endogenous Internal Guide Sequence, Nilesh Vaidya and Niles Lehman
Exploring the pH Dependence of Viologen Reduction by Alpha-Carbon Radicals Derived from HCy and Cys, Dong Wang, William E. Crowe, Robert M. Strongin, and Martha Sibrian-Vazquez
A Photochemically Initiated Chemistry for Coupling Underivatized Carbohydrates to Gold Nanoparticles, Xin Wang, Olof Ramström, and Mingdi Yan
Submissions from 2008
Synthesis and Relaxometric Studies of a Dendrimer‐Based pH‐Responsive MRI Contrast Agent, M. Meser Ali, Mark Woods, Peter Caravan, Ana C.L. Opina, Marga Spiller, James C. Fettinger, and A. Dean Sherry