Howard J. Halpern

General synthesis of persistent trityl radicals for EPR imaging of biological systems.

Reduction of image artifacts in mice by bladder flushing with a novel double-lumen urethral catheter.

Electron paramagnetic resonance oxygen imaging of a rabbit tumor using localized spin probe delivery.

Immobilization Using Dental Material Casts Facilitates Accurate Serial and Multimodality Small Animal Imaging.

Frequency bandwidth extension by use of multiple Zeeman field offsets for electron spin-echo EPR oxygen imaging of large objects.

Absolute oxygen R1e imaging in vivo with pulse electron paramagnetic resonance.

Triarylmethanols bearing bulky aryl groups and the NOESY/EXSY experimental observation of two-ring-flip mechanism for helicity reversal of molecular propellers.

Generation of Trityl Radicals by Nucleophilic Quenching of Tris(2,3,5,6-tetrathiaaryl)methyl Cations and Practical and Convenient Large-Scale Synthesis of Persistent Tris(4-carboxy-2,3,5,6-tetrathiaaryl)methyl Radical.

Preparation of Diversely Substituted Triarylmethyl Radicals by the Quenching of Tris(2,3,5,6-tetrathiaaryl)methyl Cations with C-, N-, P-, and S-Nucleophiles.

Comparison of pulse sequences for R1-based electron paramagnetic resonance oxygen imaging.

Approaching Oxygen-Guided Intensity-Modulated Radiation Therapy.

Fast dynamic electron paramagnetic resonance (EPR) oxygen imaging using low-rank tensors.

Electron Paramagnetic Resonance pO Image Tumor Oxygen-Guided Radiation Therapy Optimization.

Correlation Between Hypoxia Proteins and EPR-Detected Hypoxia in Tumors.

A Pulse EPR 25 mT magnetometer with 10ppm resolution.

Optimization-based image reconstruction from sparsely sampled data in electron paramagnetic resonance imaging.

Single-dose radiotherapy disables tumor cell homologous recombination via ischemia/reperfusion injury.

A balanced total-variation-Chambolle-Pock algorithm for EPR imaging.

An iterative reconstruction algorithm without system matrix for EPR imaging.

Absolute oxygen-guided radiation therapy improves tumor control in three preclinical tumor models.

Corrigendum: Absolute oxygen-guided radiation therapy improves tumor control in three preclinical tumor models.

Sensing and Imaging Molecular Oxygen in Mammals with Spin Lattice Relaxation Electron Paramagnetic Resonance.