A Portable High-Efficiency Multi-Material Electrospinning Device with Low Environmental Dependence

This study introduces a low-environment-dependent, portable, high‑speed multi‑material electrospinning device (LEPHE) that leverages a gas–electric coupling field to decouple jet formation from fiber delivery. By integrating an internal electric field with a coaxial air stream and a multi‑needle head featuring alternating bifurcated channels, LEPHE mitigates ambient sensitivity (humidity/temperature/airflow), enhances deposition uniformity, and enables in situ fabrication of composite nanofiber films. The platform supports on‑demand stacking of dissimilar polymers and controlled mixing ratios within single layers, achieving uniform co‑deposition with significantly improved throughput compared to conventional single‑material, open‑environment electrospinning.