Riman Research Group


Research Overview

From developing new, environmentally sound materials and manufacturing processes suitable for large infrastructure projects, to modifying phosphors for less invasive deep-body tissue targeted imaging, the Riman Research Group is delivering innovations in materials science and impacting lives throughout the world.  The group actively collaborates with other Rutgers researchers, universities, companies, and Federal agencies, including the Critical Materials Institute, a DOE Energy Innovation Hub headed by Ames Laboratories.


Areas of Research

Hydrothermal Solvothermal Processing - Reducing the Environmental Impact of Manufacturing

  • Developing new materials with better performance characteristics capable of uses not attainable with current materials
  • Designing new sustainable production methods for manufacturing materials

Application of a patented low-temperature solidification process enables us to create environmentally favorable manufacturing processes for cement that sequesters carbon, consumes less energy than commonly used cement manufacturing processes and results in products with exceptional mechanical properties and chemical durability.  The team is poised to evolve this approach for advanced composite materials that include ceramics, metals, and polymers. Thermodynamic modeling for materials of interest as well as in situ processing tools are essential for rapid development of commercial processes that yield materials with controlled physical and chemical characteristics.  Extensive use of characterization analysis supports these efforts.

Biomaterials – Innovative Optical Nanomaterials and Hard Tissue Replacement

Ongoing research to advance an innovative nanomaterials approach for molecular imaging of microlesions that occur with the onset of cancers and cardiovascular disease.  Researchers are using a new class of solvothermally-derived phosphors with enhanced detection of deeper tissue lesions.  Work in optical materials emanated from solution crystallization nanomaterials research focused on being the first to invent and patent nanostructured transparent optical composites suitable for a wide range of applications where bright light of multiple controlled wavelengths are emitted.  Other projects have involved lighting (visible and IR) and authentication materials.

Hard tissue replacement efforts involve synthesizing hydroxyapatite in order to provide mechanical properties closer to what is seen in native bone as well as mimic the osteo-inductive properties.  In addition a suite of hydrothermal alloy coating technologies has been created that are capable of providing hard, adherent biocompatible interfaces that have utility for a wide range of metal alloys.