In a series of scientific meetings are organized by the College of Applied Sciences’ Vice-Deanship for Higher Studies and Scientific Research, and under the supervision of Dr. Waleed bin Jamil Altaf, the college dean, the 6^th Scientific meeting was held at the level of the college.

Physics Department on Wednesday:2-4-1439 AH

Under the title of

 (Introduction-preparation- classification- some applications of nanomaterials)

Prof. Roshdy Saudi

Professor at Physics Department

In the presence of a number of the Applied Sciences College’s affiliates and those interested in this scientific meeting.

The meeting started by defining the nanometer dimension, the natural as well as synthetically-prepared nanomaterials, nanoscience and nanotechnology; in addition to highlighting the importance of nanomaterials. They then broached the explanation of nanomaterials in terms of dimensions, into nanomaterials of zero, one, two, and three dimensions. The features that nanomaterials are characterized with rather than the micrometric materials were also explained, such as surface energy and quantum squeezed. The exciton bohr radius was also introduced and compared to the size of nanomaterials in states of weak, equal and strong squeezed; in addition to the methods to prepare nanomaterials, whether from above to bottom (from large-dimensional materials to nano) or from bottom to above (from the atomic dimensions to nano). Examples of preparation were described in each method, and the devices used to characterize nanomaterials were examined to study their sizes and surfaces, to identify their chemical elements, crystallization, and to study their electronic transition and optical properties.

At the end of the meeting, some of applications of nanomaterials in medicine, whether in the detection and treatment of cancer cells or in the delivery of treatment to infected parts, and as medicines that protect against the sun, have been reviewed. Their applications in the photovoltaic cells or as sensors and catalysts in chemical reactions were also clarified. Following this interesting meeting, a scientific discussion on this topic started between the attendees, affiliates of Applied Sciences College and Dr. Roshdy.

At the end of the scientific meeting, Dr. Roshdy was honored by the dean of Applied Sciences College, Dr. Waleed bin Jamil, and gave him a shield of thanks and appreciation for his participation in the presentation of this scientific meeting.