Precision enhanced alignment bonding technique with sacrificial strategy

Abstract

This work proposes an “N2-1” sacrificial strategy to help to improve the accuracy of the bonding technique from the existing level. The target micropattern is copied N2 times, and (N2-1) of them are sacrificed to obtain the most accurate alignment. Meanwhile, a method for manufacturing auxiliary solid alignment lines on transparent materials is proposed to visualize auxiliary marks and facilitate the alignment. Though the principle and procedure of alignment are straightforward, the alignment accuracy substantially improved compared to the original method. With this technique, we have successfully fabricated a high-precision 3D electroosmotic micropump just using a conventional desktop aligner. Because of the high precision during the alignment, the flow velocity is up to 435.62 μm/s at a driven voltage of 40 V, which far exceeds the previous similar reports. Thus, we believe that it has great potential for high precision microfluidic device fabrications.

Remodeling Microenvironment for Implant‐Associated Osteomyelitis by Dual Metal Peroxide

“…[63][64][65][66] With the well dual regulatory function in promoting osteogenesis while inhibiting osteolysis, strontium has already been widely used in bone tissue engineering materials in clinical experience. [67][68][69][70] Therefore, it is worth considering that the integration of dual metal peroxides of CuO 2 -SrO 2 may present a promising approach to eradicate bacterial infection and promote bone defect repairing at once.…”

A liquid metal based, integrated parallel electroosmotic micropump cluster drive system

“…25,26 Subsequently, the research on the multi-channel integration of LM-EOPs has been gradually carried out, and the electroosmosis unit is expanded through series and parallel connections to improve the overall flow rate of the micropump. The integration of LM-EOPs is realized by adopting stepped series-parallel electroosmosis modules, 27 increasing the number of parallel fluid channels, 28,29 and using snake electrodes. 30 These have made outstanding contributions to the improvement of the manufacturing process and performance of ordinary openchannel EOPs.…”