Marcus-Tuned 3D-Printed Porous Heavy-Metal Capture Scaffolds

PROBLEM: A 3D-printed porous scaffold can shape flow paths and place biosorbent where water actually passes, yet capture still depends on electron transfer at the binding site inside each pore. Marcus reorganization energy and driving force vary with local chemistry, so a scaffold with an elegant pore network can still capture slowly if its functionalised surfaces sit in a poor transfer regime. Designers need a shared space to propose pore architectures together with their predicted binding and transfer behaviour.

SOLUTION: IBM Cloud Ideas would host proposals for printed capture scaffolds that attach pore design, print-then-functionalise steps, DFT binding predictions, Marcus windows, and energy budgets to each idea. Contributors could compare water-based functionalisation routes, flag designs needing high-temperature curing, and require regeneration accounting before an idea advances. The shared record would keep architecture and chemistry linked instead of letting them drift apart.

EVIDENCE BASIS: Marcus electron transfer — rate depends on reorganization energy and driving force; inverted region; Nobel 1992. DFT via Kohn–Sham equations; Hohenberg–Kohn 1964, Kohn–Sham 1965, Nobel 1998. Biosorption isotherms qe = (C0 − Ce)V/m and Langmuir/Freundlich models are textbook DOCUMENTED. Source: Nobel Prize records (1992, 1998); standard textbooks.