Rubel G O
Edgewood Research, Development & Engineering Centre, Aberdeen Proving Ground, MD 21010-5423, USA.
J Appl Microbiol. 1997 Aug;83(2):243-7. doi: 10.1046/j.1365-2672.1997.00222.x.
Single particle levitation (SPL) is used to measure the sorption and desorption of water vapour from microparticles comprising of Bacillus spores. Water gain is determined from increases in the weight-balancing levitation voltages. Spore water isotherms are compared to values previously reported using bulk gravimetric methods. Two salient differences are found between the SPL and bulk data: (1) greater osmotic swelling is observed in the SPL data; and (2) the SPL data exhibit open loop hysteresis while bulk data exhibit closed loop hysteresis.
单颗粒悬浮（SPL）用于测量芽孢杆菌孢子组成的微粒对水蒸气的吸附和解吸。通过平衡悬浮电压的增加来确定吸水量。将孢子水等温线与先前使用整体重量法报告的值进行比较。在SPL数据和整体数据之间发现了两个显著差异：（1）在SPL数据中观察到更大的渗透膨胀；（2）SPL数据呈现开环滞后，而整体数据呈现闭环滞后。
