The advancement of wearable electronics is accelerating the evolution of devices toward multifunctionality and system-level integration 1.Current fibre devices already demonstrated multiple discrete functions, such as energy harvesting and storage, sensing, and display, thereby laying a foundation for future intelligent wearable platforms 2.Nevertheless, the essential signal processing components in such system still depend on externally connected rigid silicon-based chips.This limitation fundamentally contradicts the flexible and conformal nature of fibres and severely impedes the realization of truly integrated smart fibre systems 3,4.The critical bottleneck stems from the intrinsic curved geometry and limited surface area of fibres, which hinder the high-resolution fabrication of dense, multifunctional
Ren et al. (2026) studied this question.