The drying of acid whey is hindered by its high mineral and organic acid contents, and their removal is performed industrially through expensive and environmentally impacting serial processes. Previous works demonstrated the ability to remove these elements by electrodialysis alone but with a major concern-membrane scaling. In this study, two conditions of pulsed electric field (PEF) were tested and compared to conventional DC current condition to evaluate the potential of PEF to mitigate membrane scaling and to affect lactic acid and salt removals. The application of a PEF 25 s/25 s pulse/pause combination at an initial under-limiting current density allowed for decreasing the amount of scaling, the final system electrical resistance by 32%, and the relative energy consumption up to 33%. The use of pulsed current also enabled better lactic acid removal than the DC condition by 10% and 16% for PEF 50 s/10 s and 25 s/25 s, respectively. These results would be due to two mechanisms: (1) the mitigation of concentration polarization phenomenon and (2) the rinsing of the membranes during the pause periods. To the best of our knowledge, this was the first time that PEF current conditions were used on acid whey to both demineralize and deacidify it.
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http://dx.doi.org/10.3390/ijms20040797 | DOI Listing |
Crit Care
January 2025
Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.
Background: Low-volume hypertonic solutions, such as half-molar lactate (LAC), may be a potential treatment used for fluid resuscitation. This study aimed to evaluate the underlying cardiovascular effects and mechanisms of LAC infusion compared to sodium-matched hypertonic sodium chloride (SAL).
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J Nanobiotechnology
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School of First Clinical Medical, Ningxia Medical University, Yinchuan, 750004, China.
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View Article and Find Full Text PDFSci Rep
January 2025
Fischell Department of Bioengineering, University of Maryland, College Park, USA.
The development of optical sensors for label-free quantification of cell parameters has numerous uses in the biomedical arena. However, using current optical probes requires the laborious collection of sufficiently large datasets that can be used to calibrate optical probe signals to true metabolite concentrations. Further, most practitioners find it difficult to confidently adapt black box chemometric models that are difficult to troubleshoot in high-stakes applications such as biopharmaceutical manufacturing.
View Article and Find Full Text PDFInt J Pharm
January 2025
The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical University, Xinxiang 453003 China. Electronic address:
This study focuses on the preparation and characterization of platelet membrane biomimetic nanocarriers (P-PLGA NPs) and investigates their interactions with the transplacental barrier. Poly (lactic-co-glycolic acid) nanoparticles (PLGA NPs) were coated with platelet membrane (PLTM) to construct P-PLGA NPs. Additionally, fluorinated polyethylenimine (F-PEI) was grafted onto PLGA NPs to prepare F-PEI-PLGA NPs, which were compared with PLGA NPs.
View Article and Find Full Text PDFActa Histochem
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Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310006, China. Electronic address:
Background: Cervical cancer is a major health burden in females worldwide, available studies indicated that sex-determining region Y-box 2 (SOX2) is closely related to the malignant phenotypes of multiple cancers including cervical cancer. However, the underlying mechanisms were blurred.
Experimental Procedures: A bioinformatics analysis was conducted to investigate the clinical correlation between SOX2 and cervical cancer.
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