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Accessing individual 75-micron diameter nozzles of a desktop inkjet printer to dispense picoliter droplets on demand†
RSC Advances ( IF 3.9 ) Pub Date : 2018-04-18 00:00:00 , DOI: 10.1039/c8ra00756j Rick Waasdorp 1 , Oscar van den Heuvel 1 , Floyd Versluis 1 , Bram Hajee 1 , Murali Krishna Ghatkesar 1
RSC Advances ( IF 3.9 ) Pub Date : 2018-04-18 00:00:00 , DOI: 10.1039/c8ra00756j Rick Waasdorp 1 , Oscar van den Heuvel 1 , Floyd Versluis 1 , Bram Hajee 1 , Murali Krishna Ghatkesar 1
Affiliation
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Desktop inkjet printers are ubiquitous and relatively inexpensive among the variety of available printers. These inkjet printers use an array of micro fluidic pumps, nozzles based on piezoelectric actuation, to dispense individual picoliter volume ink droplets at high speed. In this paper, we show that individual pumps in desktop printers can be accessed to dispense droplets on demand. Access was obtained using the printer’s command language programming. A detailed description of the access procedure is discussed. Droplets were printed on a paper as it rolled underneath the printhead, and with a minor hardware modification, they were also printed on a glass substrate. With this access, individual droplets were deposited, the smallest having an average diameter of 62 μm with a standard deviation of 6.9 μm, with a volume of ∼4 pL. From the intended position, the droplets had a standard deviation of 5.4 μm and 8.4 μm in the vertical and horizontal directions, respectively. The ink droplets were dispensed at a rate of 7.1 kHz. A circularity factor of 0.86 was obtained indicating that the dispensed droplets are of good quality. By replacing the ink in the cartridges with liquids of choice (e.g. cells, proteins, nanoparticles etc.), we believe it provides an opportunity for low-cost, high-speed, high-precision, picoliter volume printing for a variety of applications.
中文翻译：
访问桌面喷墨打印机的单个 75 微米直径喷嘴，按需分配皮升液滴†
桌面喷墨打印机在各种可用打印机中无处不在且相对便宜。这些喷墨打印机使用一系列微型流体泵、基于压电驱动的喷嘴，以高速分配单个皮升体积的墨滴。在本文中，我们展示了可以访问桌面打印机中的单个泵以按需分配液滴。使用打印机的命令语言编程获得访问权限。讨论了访问过程的详细描述。当液滴在打印头下方滚动时，液滴被打印在纸上，并且通过对硬件进行较小的修改，它们也被打印在玻璃基板上。通过这种访问，可以沉积单个液滴，最小的液滴平均直径为 62 μm，标准偏差为 6.9 μm，体积约为 4 pL。从预期位置，液滴在垂直和水平方向上的标准偏差分别为 5.4 μm 和 8.4 μm。墨滴以 7.1 kHz 的速率分配。获得的圆度因子为 0.86，表明分配的液滴质量良好。通过用选择的液体替换墨盒中的墨水（例如细胞、蛋白质、纳米颗粒等），我们相信它为各种应用的低成本、高速、高精度、皮升体积打印提供了机会。
更新日期：2018-04-18
中文翻译：
访问桌面喷墨打印机的单个 75 微米直径喷嘴，按需分配皮升液滴†
桌面喷墨打印机在各种可用打印机中无处不在且相对便宜。这些喷墨打印机使用一系列微型流体泵、基于压电驱动的喷嘴，以高速分配单个皮升体积的墨滴。在本文中，我们展示了可以访问桌面打印机中的单个泵以按需分配液滴。使用打印机的命令语言编程获得访问权限。讨论了访问过程的详细描述。当液滴在打印头下方滚动时，液滴被打印在纸上，并且通过对硬件进行较小的修改，它们也被打印在玻璃基板上。通过这种访问，可以沉积单个液滴，最小的液滴平均直径为 62 μm，标准偏差为 6.9 μm，体积约为 4 pL。从预期位置，液滴在垂直和水平方向上的标准偏差分别为 5.4 μm 和 8.4 μm。墨滴以 7.1 kHz 的速率分配。获得的圆度因子为 0.86，表明分配的液滴质量良好。通过用选择的液体替换墨盒中的墨水（例如细胞、蛋白质、纳米颗粒等），我们相信它为各种应用的低成本、高速、高精度、皮升体积打印提供了机会。
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