A team of US researchers led by弗吉尼亚理工学院has used 3D printing to create octopus-inspired adhesive suckers.
章鱼与头足类阶级的其他成员一起依靠可控粘合剂和嵌入式感应的组合来粘在水下并操纵物体。当今的许多基于合成的基于粘合剂的操纵系统往往没有任何集成感应，这可能会导致相对较慢的粘附激活和释放。
The Virginia Tech research team has now developed its own nature-inspired nervous system capable of detecting objects and automatically switching on adhesion in a matter of milliseconds.
科学家将支持3D打印的粘合剂皮肤实施到可穿戴手套中后，创建了一种新颖的方法来可靠地操纵水下环境中的物体。
Mother nature knows best
To this day, effective and reversible adhesion to underwater surfaces remains a major challenge. In dry environments, we can rely on adhesion via van der Waals forces, electrostatic forces, and hydrogen bonds, but wet surfaces significantly reduce the efficacy of these phenomena.
尽管如此，进化尽管在包括水下在内的最潮湿的环境中产生强大的粘合力的方法为动物王国增添了增光。例如，贻贝可以分泌特殊的蛋白质来产生粘稠的斑块，使它们几乎粘在任何表面上。同样，青蛙可以通过其脚趾垫排出液体以激活流体动力。
章鱼特别感兴趣，因为他们的吸盘能够很快产生水下粘附和吸力，同时完全可逆。由于吸盘伴随的感应和控制系统，它们也值得注意，其中包括用于检测流体流动，压力和表面接触的机械感受器。
这种组合为他们提供了有关依恋和接近性（诸如现代合成抓手难以实现的功能）的全面信息。
Emulating the octopus nervous system
弗吉尼亚理工大学以章鱼风格的手套为特色，其中包括一套硅胶茎，上面扎着气动驱动的膜，以充当抓手。茎是在3D印刷模具的帮助下制成的，从而将硅酮弹性体倒入模具中，然后铸造并固化成定制的抓手形状。
Each of the adhesive suckers was integrated with an array of microlight detection and ranging (LIDAR) optical proximity sensors. The gloves also featured microcontrollers for real-time object detection and sucker control. The team claims this combination of mechanical and electronic equipment accurately mimics the inner workings of the octopus nervous system.
在一系列水下试验中测试手套后，研究人员发现他们的设备启用了超过60kPa的粘合应力。手套中的粘附也可以在不到50毫米的时间内打开和关闭450次以上，表现出比实际章鱼快的循环时间的出色可逆性。
The paper concludes, “Although this study is focused on optical sensors, different sensing modalities could also be used in the future. Chemical or mechanical sensors could be synergistic, and this could be particularly interesting as it is known that the octopus displays a diverse set of vision, chemical, and mechanical sensing during manipulation. There are also future opportunities to incorporate haptic feedback into this system to alert a user when adhesives are activated.”
该研究的进一步详细信息可以在标题的论文中找到“章鱼灵感的粘合剂皮肤，用于智能和快速可切换的水下粘附”。
仿生是添加剂制造研究中的一个共同点，这是有充分理由的。雷电竞充值今年早些时候，研究人员在ETH Zurich3D人为印刷彩色纳米结构，从蝴蝶的翅膀中汲取灵感。Native to tropical Africa, the wings of the Cynandra opis species are characterized by their vibrant colors. Rather than being pigment-based, however, these colors are structural, meaning they’re produced by intricate nanostructures on the surface of the wings.
在其他地方，来自University of Freiburg和斯图加特大学developed a novel method of4 d印刷self-adj穿戴式医疗设备ustto the anatomy of the patient. Inspired by the propagation mechanism of the air potato plant (Dioscorea bulbifera), the printed systems can be pre-programmed to carry out complex movements when exposed to moisture.
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寻找添加剂制造业的职业？雷电竞充值访问3D Printing Jobsfor a selection of roles in the industry.
特色图像显示了章鱼吸盘的神经系统。通过弗吉尼亚理工学院的图像。
