The liquid flow rates were determined through the use of a high-precision pump.
For the BonNDTinspect method, an ultrasonic nozzle is used to generate a narrow droplet size distribution during ejection and a high-precision pump ensures a constant flow of water.
Chiral analysis was performed on an HPLC system with a Gynkotek high-precision pump model 480, a Dionex GINA 50 autosampler, a Dionex UVD170U detector and a Gynkotek Degasys DG 1310.
ACh applications were performed using an automated application system composed of a syringe (500 μl, Hamilton, Bonaduz, Switzerland, model 750 for ACh) mounted on a high-precision pump (UltraMicroPump III, WPI) controlled by an automated controller (Micro4, WPI).
The OncoCEE™ microchannel technology has been described previously 8. Briefly, cell capture within the microchannel is driven by high-precision pumps (designed and manufactured by Biocept) (Fig. 1).
The company also says the device "does not contain expensive and complex parts, high precision hydraulics or air pumps... everything that makes other competing systems extremely expensive".
By using a high-precision syringe pump, the wetting phase (water) was injected in the pore network at constant flow rate through the inlet ports.
The MD catheters were perfused with a high-precision syringe pump (CMA 107; Carnegie Medicine, Solna, Sweden) at a rate of 5 μl/min with a Ringer acetate solution (Pharmacia & Upjohn, Copenhagen, Denmark) containing 3 mM glucose and 0.5 mM lactate to minimise the risk of draining the interstitial space (Lönnroth et al. 1987).
The homogeneous Lov-PLGA/chloroform solution was loaded into a 2 mL glass syringe and electrospun by an electrospinning setup comprising a high-voltage statitron (DC 30000V, Tianjin Dongwen High Voltage Power Supply Co., Ltd, Tianjin, China) and a precision pump (LSP01-1A, Baoding Longer Precision Pump Co., Ltd, Hebei, China).
For these reasons, high-precision infusion pumps are recommended to maintain a precise and constant flow rate in order to achieve both constant plasma concentrations and effects on the cardiovascular system [ 4].
Among all kinds of pumps, piezoelectric peristaltic micropumps are most likely to be applied in implementations for the development of high precision drug delivery systems.
