on a magnetic stirrer at a speed of 1,000 r.p.m (Lu et al., 2019). The non-loaded drug was separated by high-speed centrifugation (15,000 r/min, 15 min). TQ-loaded NPs remained in the pellet after the ...

Magnetic stirrers are a core part of many chemistry labs. They offer many advantages for ensuring the effective mixing of solutions compared to other methods of stirring, including consistency ...

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Laboratory mixers commonly refer to vortex mixers which are used to mix small vials of liquid. An electrical motor causes a rubber cup containing a test tube or other vessel to oscillate, causing ...

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BEIJING, March 20 (Reuters) - China's giant steel industry is facing mounting pressure on exports this year as it faces another wave of trade frictions from U.S. President Donald Trump's new ...