Sjang is currently involved in several research projects that explore the dynamics within and connections between academic disciplines in the humanities and sciences.

He is working on a monograph (tentatively titled Libaries and Laboratories) that explores the connections between the disciplines of history and physics in nineteenth-century Germany. Together with Marie-Gabrielle Verbergt (Ghent University), he is co-editing a special issue on the history of peer review in the humanities and its connection to scientific peer review for the journal Minerva. He is also currently co-editing a volume on the long-term history of scholarly vices (such as dogmatism, prejudice, dishonesty, etc.) with Herman Paul (Leiden University), to be published with Brill in 2025.