功能材料的毛细管压印：无油墨耗尽的平行加成基底图案化
Capillary stamping of functional materials: parallel additive substrate patterning without ink depletion
摘要：
用于光学、电子、传感、芯片实验室技术、生物分析、临床诊断以及转化和个性化医学的图案化基底通常通过包括弹道印刷和微接触印刷的增材基底制造来制备。然而，弹道印刷（例如，喷墨和气溶胶喷射印刷、激光诱导前向转印）涉及连续的逐像素油墨沉积。通过微接触印刷的平行添加剂图案化是用在几次印模-基底接触之后遭受油墨耗尽的固体弹性体印模进行的。因此产生的现有技术的加性图案化的生产量限制可以通过毛细管压印来克服-通过介孔二氧化硅印模在没有油墨耗尽的情况下平行加性基底图案化，这使得能够在压印期间的任何时候通过介孔供应油墨。因此，基底结合的纳米颗粒的阵列或分离的纳米颗粒的胶体纳米分散体是可获得的。我们处理了三种类型的模型油墨：1）药物溶液，2）含有金属聚合物和嵌段共聚物的溶液以及3）代表胶体纳米颗粒油墨的纳米金刚石悬浮液。因此，我们通过冲压后热解冲压金属聚合物前体纳米颗粒和规则排列的纳米金刚石纳米聚集体获得了冲压药物纳米颗粒、规则排列的陶瓷纳米颗粒的水性胶体纳米分散体。毛细管压印可以克服现有技术的增材基底制造的生产量限制，同时可以处理各种不同的油墨。
英文摘要：
Patterned substrates for optics, electronics, sensing, lab-on-chip technologies, bioanalytics, clinical diagnostics as well as translational and personalized medicine are typically prepared by additive substrate manufacturing including ballistic printing and microcontact printing. However, ballistic printing (e.g., ink jet and aerosol jet printing, laser-induced forward transfer) involves serial pixel-by-pixel ink deposition. Parallel additive pattering by microcontact printing is performed with solid elastomeric stamps suffering from ink depletion after a few stamp-substrate contacts. The throughput limitations of additive state-of-the-art patterning thus arising may be overcome by capillary stamping - parallel additive substrate patterning without ink depletion by mesoporous silica stamps, which enable ink supply through the mesopores anytime during stamping. Thus, either arrays of substrate-bound nanoparticles or colloidal nanodispersions of detached nanoparticles are accessible. We processed three types of model inks: 1) drug solutions, 2) solutions containing metallopolymers and block copolymers as well as 3) nanodiamond suspensions representing colloidal nanoparticle inks. Thus, we obtained aqueous colloidal nanodispersions of stamped drug nanoparticles, regularly arranged ceramic nanoparticles by post-stamping pyrolysis of stamped metallopolymeric precursor nanoparticles and regularly arranged nanodiamond nanoaggregates. Capillary stamping may overcome the throughput limitations of state-of-the-art additive substrate manufacturing while a broad range of different inks can be processed.
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