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Ultrasound is a well-established imaging modality used in clinics worldwide for many different applications. It has also experienced recent growth in interest for therapeutic applications in the form of high-intensity focused ultrasound (HIFU) or focused ultrasound (focused-US), including in capsules for use in drug delivery in the gut. The work described here aimed to support the investigation of...
The hydrolysis of lactose in skimmed milk and β‐galactosidase inactivation studies were carried out in three different devices – bioreactor, sonicator and homogeniser – to evaluate the performance of such reactors that have different operational systems. The experiments were carried out using β‐galactosidase produced from Kluyveromyces marxianus lactis. At the optimum process conditions obtained from...
Ecofriendly ultrasonic textile dyeing with natural dyes such as Acacia catechu and Tectona grandis show better and faster dye uptake after enzyme pretreatment on cotton fabric, and results of dyeing are better than metal mordanted fabric. It is observed that there is marked improvement in wash-fastness and light-fastness. The role of enzyme pretreatment is primarily for better absorbency, adherence...
For drug delivery applications, dosage prediction before release and estimation after release are required functions. The difference of harmonic responses generated from multi-lamellar vesicles with different numbers of layers can be used to estimate the shell thickness related to numbers of layers and predict the dosage of vesicles. However, there is no appropriate mathematical model and experimental...
This paper will describe a practical procedure and a simple data analysis method for the evaluation of the carbonaceous impurities in the as-produced (AP) single-walled carbon nanotube (SWNT) samples. This procedure starts with dispersing an AP-SWNT sample in an aqueous surfactant by using a sonicator. Then the optical absorption spectrum of the suspension is measured in the visible and the near-infrared...
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