The development of formulation technologies involves specific skills and a science-based approach that focuses the contribution of each formulation component in achieving the properties requested in the final product. This teaching provides the fundamentals required to understand the science of formulations and its increasingly importance in the global economy.
The teaching is aimed to provide an overview on the formulation chemistry through the recall of basic knowledges as well as the study of preparation methods and investigation techniques in the industrial field. Particular attention will be paid to colloidal systems as they represent an essential component in the formulation technology for advanced industrial applications.
The main contents of this teaching are related to the knowledge of properties, methods of preparation and characterization techniques of different types of colloids, monolayers and multilayers with the aim to correlate structure and properties of different molecular architectures. To this purpose, specific examples in various application areas are provided. At the end of the teaching the student will be able to:
None, but it is certainly useful to have previously followed the teaching of Colloids and Interphases.
The teaching consists of traditional lectures for a total of 32 hours, sometimes accompanied with exercises carried out by the teacher in the classroom. Lesson notes are uploaded to the corresponding aul@web page simultaneously with the presentation of their content in the classroom.
In order to facilitate the individual preparation, verification quizzes and tests are uploaded to the corresponding aul@web page.
Recalls on the formulation chemistry: areas of application and industrial relevance.
Recalls on the science of colloids and surfaces and its role in the formulation chemistry.
Colloids: molecular, structural and electronic properties. Quantum confinement effects and their importance in conditioning the properties of the matter at the nanoscale level (optical, magnetic, mechanical) and reactivity.
Transport properties of colloidal systems: diffusion, sedimentation and membrane equilibria (osmotic pressure, Donnan effect, dialysis processes). Examples of applications on biological macromolecules.
Rheological properties of colloidal systems: Newtonian and non-Newtonian fluids (plastic, pseudo-plastic, dilatant fluids). Einstein's theory on the viscosity of dispersions. Thixotropy and anti-thixotropy. Rheometers and viscometers. Examples of applications in cosmetics and food industry.
Association Colloids: general properties, critical micellar concentration, thermodynamics and kinetics of micellization. Structural models for micelles dispersed in water and definition of the corresponding structural parameters. Solubilizing, detergent and catalytic properties of micelles and their applications. Reverse micelles, liposomes and lyotropic liquid crystals: structure, properties and applications.
Formation of monolayers and multilayers by adsorption from solutions. Self-assembled monolayers on solid substrates (SAM): structure, properties and methods of preparation on 2D- and 3D-surfaces. Langmuir-Blodgett films: structure and properties. Examples of applications of adsorbed monolayers and multilayers.
“Principles of colloid and surface chemistry”, P. C. Hiemenz, R. Rajagopalan, 3rd edition, CRC press, Taylor & Francis Group, 1997.
“Kirk-Othemer Encyclopedia of Chemical Technology”, J. I. Kroschwitz, M. Howe-Grant, Eds., John Wiley & Sons, 1996.
Ricevimento: Every day by appointment.
MARINA ALLOISIO (President)
CAMILLA COSTA
ORIETTA MONTICELLI
MASSIMO OTTONELLI
Teaching is held during the second semester of the academic year starting from february 28th, 2022. Timetable of lessons can be found at:
https://corsi.unige.it/9020/p/studenti-orario
https://chimica.unige.it/node/390
The exam is an oral examination conducted by two teachers for a duration of at least 30 minutes. During the calendar year, seven exam dates are set up within the time intervals scheduled by the Manifesto degli Studi.
The oral examination usually consists of two parts; both of them are awarded a maximum rating of 15/30 for the exam evaluation:
- in the first part, the student has to face a problem connected to formulation chemistry in order to verify his understanding and mastery of the teaching topics as well as his ability to apply the theoretical concepts to real situations;
- in the second part, the student is called upon to illustrate and discuss topics of the teaching program, chosen by the examination committee; the second part is awarded a maximum rating of 15/30.
In case of emergency and only according to specific indications by the University of Genoa, the assessment method for the exam might be changed, including the possibility of an online procedure.
Goal of the assessment is to verify the understanding and mastery of the learning outcomes by the student, particularly as far as the student’s ability to correlate the properties of colloids, monolayers and multilayers to their potential applications in the field of industrial formulations is concerned. Otherwise, the student is invited to deepen his preparation also by taking advantage of further explanations by the teacher before repeating the exam.
Moreover, the oral exam will avail to verify the achievement of the appropriate level of comprenhension of the topics transmitted during the lectures and the language skills. The student's ability to compare and integrate the data available from various experimental characterization techniques and from the correlation structure-property models included in the teaching program will also be evaluated.
As a quality assurance, the detailed program of the teaching is uploaded to the corresponding aul@web page, so that students can verify the correspondence between topics and learning outcomes.
The lessons attendance is strongly recommended to become familiar with the examination procedure, since the lectures are always accompanied by concrete examples related to daily life and industrial practice.
