Interfacial Processes and Thermodynamics | Apply Online

Opportunity Summary:

The National Science Foundation (NSF) Interfacial Processes and Thermodynamics program (Funding Opportunity Number PD 11 1414) is a discretionary engineering research grant opportunity within CFDA 47.041 (Engineering Grants). It funds fundamental work that advances engineering science in three tightly connected areas: interfacial phenomena, mass transport phenomena, and molecular thermodynamics. The program is especially interested in research that explains, predicts, and ultimately helps engineers control what happens where materials meet (for example, liquid-liquid, solid-liquid, membrane interfaces, or multiphase boundaries), how molecules and energy move in and around those regions, and how thermodynamic forces drive structure and behavior at very small scales.

A major theme in this opportunity is molecular engineering at interfaces, with a strong emphasis on nanoprocessing of soft materials. In practical terms, that means the program prioritizes ideas that treat the interface as something you can design at the molecular level to achieve a specific function, rather than simply measure after the fact. Molecules that sit at interfaces and provide useful properties (such as selective adsorption, responsiveness to stimuli, or biologically relevant functionality) are of particular interest because they enable new nanofabrication and nanotechnology pathways. The solicitation highlights that these interfacial molecules can also have biomolecular roles at micro- and nanoscale dimensions, which ties the program to emerging biointerfaces, membranes, and soft matter systems.

The research problems this program targets often involve self-directed or templated molecular assembly (including various types of self-assembly) that is driven primarily by thermodynamic intermolecular forces. At the same time, NSF notes that flow fields and electrical forces can influence these systems, and in some cases weak chemical reactions may also contribute. This framing makes it clear the program is looking for rigorous, fundamentals-based studies that still connect to realistic process environments, where interfaces may be under shear, electric fields, confinement, or coupled transport conditions.

On methods and approaches, the program explicitly supports advanced theory development and complex simulation of molecular systems, particularly when simulations are paired with experimental comparisons. A central objective is to develop or apply new theories and simulation tools that can determine transport and thermodynamic properties of fluids and fluid mixtures, including biological fluids and other complex mixtures. The solicitation calls out challenging environments and geometries such as bulk phases with complex molecules, interfaces, membranes, two-phase mixtures, and nanoconfined or nanoengineered environments. Common system components include polymers, surfactants, and specialized biomolecules, reflecting the program’s focus on soft matter and functional interfacial chemistry/physics.

In terms of broader relevance, the program historically connects to long-term engineering needs of the chemical processing industry, but it also explicitly emphasizes newer impact domains: advanced materials, biomedical and biotechnology industries, energy and water processing, environmentally benign processing, and microelectronics. The program description points to three broad outcomes that motivate its investments: more economical and environmentally benign processing, improved water quality, and novel functional materials (including sensor-related materials) that can operate in industrial, environmental, and biomedical settings. Nanotechnology is described as a cross-cutting enabler in most of these areas, which signals that nanoscale interfacial design, characterization, and modeling are viewed as central rather than peripheral.

The program is also positioned as highly collaborative inside NSF. Projects may be coordinated and jointly supported with other programs within and beyond the CBET Division. It aligns with NSF nano and cyber technology activities, encourages undergraduate involvement, and supports partnerships such as industry-university collaborations through the GOALI mechanism, as well as international collaboration when appropriate. Beyond standard research awards, the program supports workshop and travel-related mechanisms (including individual and group travel), with the expectation that these kinds of proposals are generally submitted during the regular biannual windows.

Proposal content expectations are spelled out in a way that is meant to shape how investigators write their Project Summary and overall narrative. Proposers are expected to clearly state what is novel relative to prior work, why that novelty matters for engineering science (not just for incremental improvement), and what the likely societal and/or industrial impact would be if the research succeeds. NSF indicates that, at a minimum, these points should appear in the Project Summary, which is a practical reminder that reviewers often form early judgments from that section.

On award size and duration, unsolicited research awards are generally one to three years. The typical average annual award size is around $80,000, and small equipment proposals up to $70,000 are also considered, submitted within the same windows. For the overall opportunity, NSF anticipated around 67 awards and listed an estimated total program funding level of about $7.4 million, with an award floor shown as $240,000 in the source data. The opportunity states there is no cost sharing or matching requirement. Eligibility is listed as unrestricted (open to any type of entity), subject to any clarifications in the full announcement.

Timing is treated as strict. Proposals must be submitted during the defined biannual submission windows (due by 5 p.m. local time): February 1 to March 1 annually, and August 15 to September 15 annually. The solicitation notes that proposals submitted outside these dates will be returned without review, so the window is effectively a hard gate rather than a preference. The original posting date was November 30, 2010, and the opportunity was later replaced by NSF 12-1414, with an archive date of June 8, 2011, indicating that applicants should verify the current program solicitation number before submission.

The program strongly encourages Faculty Early Career Development (CAREER) proposals, which run for five years, with the Engineering CAREER deadline typically in July each year. It also references NSF’s RAPID and EAGER mechanisms (which replaced SGER), emphasizing that these require prior discussion with the program director before submission and that proposers should follow the NSF Proposal and Award Policies and Procedures Guide (PAPPG) for details. Contact help for technical access issues is directed to NSF grants.gov support (grantsgovsupport@nsf.gov), and applicants are implicitly expected to coordinate with the program director when pursuing special mechanisms like RAPID/EAGER.

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