Cellulosic Nanofibers Utilizing a Silicone Elastomeric Core to Form Stretchable Paper
Cellulosic Nanofibers Utilizing a Silicone Elastomeric Core to Form Stretchable Paper
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DOI：
10.1002/admi.202300487
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发表时间：
2023-10
影响因子：
5.4
通讯作者：
Joab S. Dorsainvil;Matthew S. Brown;Zahra Rafiee;Anwar Elhadad;Seokheun Choi;Ahyeon Koh
中科院分区：
文献类型：
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作者：
Joab S. Dorsainvil;Matthew S. Brown;Zahra Rafiee;Anwar Elhadad;Seokheun Choi;Ahyeon Koh
纸是一种廉价的材料，具有天然的生物相容性、无毒性和可生物降解性，可以为非常规的先进电子产品（通常称为papertronics）提供经济实惠的基材。另一方面，聚合物弹性体已被证明是软生物电子学衬底的卓越成功，为连续传感应用的皮肤可穿戴技术提供了可拉伸性。虽然这两种材料都有其独特的优势，但将这两种材料的特性合并到一个单一的电子衬底中，可以重新想象纸基生物电子学在生物传感、能源产生和存储、软致动器等领域的可穿戴和可修补应用。本文报道了一种透气、轻质、生物相容性的工程可拉伸纸，该纸通过同轴无纺布微纤维用于非传统生物电子衬底。可拉伸纸通过醋酸纤维素聚合物（护套）和硅弹性体（芯）的同轴静电纺丝，在没有粘合剂的情况下具有亲密的生物相容性。制备的纤维素-硅酮纤维比市售纸表现出更高的应变百分比，同时保留了纸的亲水性、生物相容性、可燃性、一次性和其他自然特性。此外，无纺布可拉伸纤维素硅纤维毡可以适应传统的纸质电子印刷和制造工艺，这是先进生物电子制造的一个重要方面。
Paper, an inexpensive material with natural biocompatibility, non‐toxicity, and biodegradability, allows for affordable and cost‐effective substrates for unconventional advanced electronics, often called papertronics. On the other hand, polymeric elastomers have shown to be an excellent success for substrates of soft bioelectronics, providing stretchability in skin wearable technology for continuous sensing applications. Although both materials hold their unique advantageous characteristics, merging both material properties into a single electronic substrate reimagines paper‐based bioelectronics for wearable and patchable applications in biosensing, energy generation and storage, soft actuators, and more. Here, a breathable, light‐weighted, biocompatible engineered stretchable paper is reported via coaxial nonwoven microfibers for unconventional bioelectronic substrates. The stretchable papers allow intimate bioconformability without adhesive through coaxial electrospinning of a cellulose acetate polymer (sheath) and a silicone elastomer (core). The fabricated cellulose‐silicone fibers exhibit a greater percent strain than commercially available paper while retaining hydrophilicity, biocompatibility, combustibility, disposable, and other natural characteristics of paper. Moreover, the nonwoven stretchable cellulose‐silicone fibrous mat can adapt conventional printing and fabrication process for paper‐based electronics, an essential aspect of advanced bioelectronic manufacturing.