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Non-contact electroacoustic tomography with optical interferometer for electroporation therapy monitoring.
Appl Phys Lett
January 2025
Department of Biomedical Engineering, University of California, Irvine, California 92617, USA.
Electroacoustic imaging is an imaging modality used to detect electric field energy distribution during electroporation, offering valuable guidance for clinical procedures, particularly in deep tissues. Traditionally, single-element piezoelectric transducers or arrays have been employed for this purpose. However, these piezoelectric sensors are sensitive to electromagnetic interference and require physical contact with the sample through a coupling medium, raising concerns for both clinical and preclinical applications.
View Article and Find Full Text PDF[Analysis of phthalate esters and their novel alternatives in indoor dust using comprehensive two-dimensional gas chromatography-time of flight mass spectrometry].
Se Pu
February 2025
Key Laboratory of Beijing on Regional Air Pollution Control, Beijing University of Technology, Beijing 100214, China.
A comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC×GC-TOF-MS) method was developed to analyze 25 traditional phthalate esters (PAEs) and 19 novel alternatives in indoor dust samples. PAEs are ubiquitous in indoor environments because they are widely used as plasticizers in a variety of consumer products, and potential health concerns have prompted the need for effective monitoring methods. In this study, dust samples were collected from various indoor settings in a university campus, including classrooms, cafeterias, laboratories, and dormitories, and were subsequently ultrasonically extracted with hexane-dichloromethane (1∶1, v/v) solution for 30 min.
View Article and Find Full Text PDFEffect of different clay additions to concrete on its ultrasonic acoustic parameters and compressive strength.
Sci Rep
January 2025
Yunnan Institute of Building Research Ltd, Kunming, Yunnan, 650223, China.
Due to various factors, the concrete may contain mud, a condition that can lead to a decrease in strength and changes in the ultrasonic acoustic parameters of the concrete. In order to study the effect of concrete mud content ([Formula: see text]) on ultrasonic acoustic parameters and compressive strength, this paper firstly derived the relationship equations between concrete mud content and acoustic parameters and compressive strength. Subsequently, the acoustic parameters and compressive strength were tested for concrete specimens with different mud contents cast on site.
View Article and Find Full Text PDFMechanistic investigation of impact of malic acid, ultrasound and dual treatment on starch digestibility of cooked whole rice grains.
Carbohydr Polym
March 2025
Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin 999077, Hong Kong. Electronic address:
Physical, chemical, and dual modifications can all significantly affect the digestibility of isolated rice granules, while their effects on the starch digestibility of whole cooked rice grains remain elusive. Therefore, the impact of malic acid, ultrasound, and ultrasound + malic acid dual treatment on the starch digestibility of cooked rice grains with different starch molecular structures was investigated in this study. Ultrasound mainly caused cavitation on the surface of rice grains, promoting the leaching of materials (> 11 %) and amylose during cooking.
View Article and Find Full Text PDFUltrasonic cavitation treatment of o-cresol wastewater and long-term pilot-scale study.
J Environ Manage
January 2025
School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China. Electronic address:
Acoustic cavitation is a cutting-edge and eco-friendly advanced oxidation technology with significant efficacy in removing organic pollutants from water. Despite its potential, research on the degradation of o-cresol, a common and challenging phenolic pollutant, is limited. This study systematically investigates the optimal conditions for degrading o-cresol via acoustic cavitation and evaluates its application potential through extensive pilot tests.
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