Optical vortices generated by a PANDA ring resonator for drug trapping and delivery applications

We propose a novel drug delivery system (DDS) by using a PANDA ring resonator to form, transmit and receive the microscopic volume by controlling some suitable ring parameters. The optical vortices (gradient optical field/well) can be generated and used to form the trapping tool in the same way as the optical tweezers. The microscopic volume (drug) can be trapped and moved (transported) dynamically within the wavelength router or network. In principle, the trapping force is formed by the combination between the gradient field and scattering photons, which has been reviewed. The advantage of the proposed system is that a transmitter and receiver can be formed within the same system, which is called transceiver, in which the use of such a system for microscopic volume (drug volume) trapping and transportation (delivery) can be realized

Technology-Mediated Higher Education Provision during the COVID-19 Pandemic: A Qualitative Assessment of Engineering Student Experiences and Sentiments

The advent of COVID-19 at the beginning of 2020 put universities worldwide into one of the most significant educational disruptions ever experienced. The unrelenting pandemic forced universities to turn to technology to ensure continuity of education. This abruptly changed learning modes for students, with potential implications on the quality of education and the student experience. Therefore, it became necessary to study experiences and sentiments toward learning under the pandemic through the lens of students. Perspectives on the new norm of learning can shed more light on digital technology's roles in learning. The new understanding is potentially useful for conceptualizing future technology-mediated higher education provision. This study follows qualitative research approaches, engaging eleven postgraduate students in three U.K. universities for in-depth semistructured interviews. Thematic analysis is adopted, interpreting sentiments into three interchangeable themes. The findings show that learning during the pandemic has raised many concerns for the future adaptations of online learning. A key finding from this study is that students are generally disappointed by their experiences of online learning effectiveness during the pandemic. One reason for this disappointment is the absence of adequate interactions amongst students due to the reduction in informal student engagement opportunities. The study also suggests that educators need to rethink current technology-mediated education delivery approaches to ensure effective learning. Similarly, students also need to be flexible and openminded, enabling them to adapt to the emerging higher education landscape

Drug trapping and delivery for Alzheimer's diagnosis

In this investigation, a new design based on a PANDA ring resonator as an optical trapping tool for tangle protein, molecular motor storage, and delivery is proposed. The optical vortices are generated and the trapping mechanism is controlled in the same way as the conventional optical tweezers. The trapping force is produced by a combination of the gradient field and scattering photons. The required molecular volume is trapped and moved dynamically within the molecular network. The tangle protein and molecular motor can be transported and delivered to the required destinations for Alzheimer's diagnosis by molecular buffer and bus network