3D‐Printed Light‐Driven Microswimmer with Built‐In Micromotors
3D‐Printed Light‐Driven Microswimmer with Built‐In Micromotors
复制标题
3D打印光驱动微型游泳器，内置微型电机
DOI：
10.1002/admt.202100687
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发表时间：
2021-09
影响因子：
6.8
通讯作者：
Runhuai Yang
中科院分区：
文献类型：
--
作者：
Yin Chen;Huanhua Yang;Mingliang Li;Shilu Zhu;Shuo Chen;Liuyi Dong;Fuzhou Niu;Runhuai Yang
由流体中的微电机驱动的不受束缚的生物相容性微游泳者可以在生物学、化学和生物医学工程等领域实现创新技术。然而，通过光有效地驱动和控制微型游泳者的运动仍然是一个挑战。在本文中，提出了一种用于制造具有内置微电机和3D打印多尺度特征的光驱动微型游泳器的方法，该方法具有高的光催化性能。TiO2-CaCO3复合微粒（TC）被制造成高效的微马达，在气泡生成中提供高的光催化效率，而3D打印水凝胶被制造成TiO2-CaCO3/PEGDA（TC/P）微泳者，提供生物相容性，大比表面积和可控运动。结果表明，通过一定浓度的物理混合制备的TC微马达具有较大的比表面积，减少了团聚，增加了光催化活性位，提高了光催化稳定性。通过3D打印将TC微电机有效地装载到多孔水凝胶中进行多尺度制造，以提高跨尺度的光催化性能，并实现紫光激发下的有效和定向驱动。TC/P微泳者在7天内表现出稳定的催化和运动，此时TiO2的催化已经无效。这种多尺度微游泳器具有稳定性、生物相容性和生物医学功能，在显微操作和靶向治疗方面具有巨大的潜力。
Untethered biocompatible microswimmers driven by micromotors in fluids can enable innovative technologies in fields such as biology and chemical and biomedical engineering. However, efficiently driving and controlling the movement of microswimmers by light remains a challenge. Herein, a method for fabricating a light‐driven microswimmer with built‐in micromotors and 3D‐printed multiscale features that exhibits high photocatalytic performance is proposed. TiO2‐CaCO3 composite microparticles (TC) are fabricated as highly efficient micromotors that provide high photocatalytic efficiency in bubble generation, while 3D‐printed hydrogels are fabricated as TiO2‐CaCO3/PEGDA (TC/P) microswimmers that provide biocompatibility, large specific surface area, and controllable movement. The results show that TC micromotors produced by physical mixing at a specific concentration exhibit a large specific surface area, reduced agglomeration, increased photocatalytic active sites, and improved photocatalytic stability. TC micromotors are effectively loaded into the porous hydrogel by 3D printing for multiscale fabrication to improve the photocatalytic performance across scales and realize effective and directional driving under violet light excitation. The TC/P microswimmers exhibit stable catalysis and motion in 7 days, at which point the catalysis by TiO2 is already ineffective. With stability, biocompatibility, and biomedical functions, this multiscale fabricated microswimmer exhibits great potential in micromanipulation and targeted therapy.
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影响因子：
11.4
作者：
Park MW;Cha HW;Kim J;Kim JH;Yang H;Yoon S;Boonpraman N;Yi SS;Yoo ID;Moon JS
通讯作者：
Moon JS
影响因子：
15.1
作者：
Rafiee, Mohammad;Farahani, Rouhollah D.;Therriault, Daniel
通讯作者：
Therriault, Daniel
碳纳米纤维负载AgI-TiO2的制备及其在可见光催化中优异的可回收和可再生性能
DOI：
10.1016/j.molcata.2016.04.005
发表时间：
2016-08
期刊：
Journal of Molecular Catalysis A: Chemical
影响因子：
--
作者：
Bai, Jie;Liang, Haiou;Ma, Tengfei;Li, Chunping
通讯作者：
Li, Chunping
影响因子：
10.8
作者：
Rozhkova EA;Ulasov I;Lai B;Dimitrijevic NM;Lesniak MS;Rajh T
通讯作者：
Rajh T
影响因子：
16.6
作者：
Sanchez, Samuel;Soler, Lluis;Katuri, Jaideep
通讯作者：
Katuri, Jaideep