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Simplicity and Efficiency: RUDN University Chemists Discover New Unique Approach to Creating Smart Packaging
Simplicity and Efficiency: RUDN University Chemists Discover New Unique Approach to Creating Smart Packaging
RUDN University chemists have discovered a unique method for making plastic film based on natural polysaccharides. It simultaneously has antioxidant, antimicrobial and barrier properties, and protects the content against ultraviolet exposure. Using the film to package and coat food products will considerably extend their shelf life.

The history of production of polymer coatings with protection properties is not new. However, the methods are being improved, thereby enhancing fundamental science. RUDN University chemists developed nanoparticles where the following four properties are combined not separately but altogether: the first one is traditional – barrier property, and the rest are so called active properties: antioxidant, antimicrobial properties and the ones which protect the product against ultraviolet exposure.

The basis for polymer coatings is bilayer. The unique combination and proportions of polymer components make it possible to obtain films with the following properties:

  • low permeability to water vapour and oxygen,
  • enhanced mechanic properties: high-tensile strength,
  • active properties, i.e. apparent antibacterial and fungicidal effects.

Traditional packaging has only barrier properties. It includes the packaging we are used to seeing every day: plastic, vacuum one. Imagine that you buy a carton of milk or a pack of sausages – they will be in so called traditional packaging.

If the packaging has antibacterial properties, protects against ultraviolet exposure, or has any other properties – it is called active. A whole range of chemical “introductions” are carried out to make each of its variations. For example, it makes sense to introduce antioxidants into the packaging if it has antibacterial properties.

The packaging is not only barrier and active but also smart. This means that it can respond to changes in the environment, for example, to the increase in humidity and temperature which is not acceptable for the film-wrapped product. The wrapping will change colour in such cases.

The discovered method for combining has many useful properties altogether: antibacterial, antioxidant, and antimicrobial, as well as smart properties. The same nanoparticles are responsible for all these properties. It is the method that is unique. Moreover, the obtained films are biocompatible, biodegradable. They are absolutely non-toxic. Such films are in line with the global trend of going green – this is real green chemistry, i.e. which is environmentally friendly.

The method is environmentally friendly, safe, simple and cost-efficient. It is the first time the most important useful properties for extending the shelf life of products have been combined. The invented compound can be used as the film in which the product will be wrapped: this will not involve its quality changes. Moreover, the immersion method seems promising: as the material is completely safe, the products can be immersed into it, thereby creating a protective film.

Scientific Conferences View all
03 Nov 2017
RUDN University organized the first 5G Summit R&D Russia on June 19 - 20, 2017
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Main Publications View all
15 Nov 2017
RUDN University scientists publish results of their scientific researches in highly-recognized in whole world and indexed in international databases journals (Web of Science, Scopus ect.). That, of course, corresponds to the high status of the University and its international recognition. Publications of June-September 2017 ( In Journals of categories Q1-Q3)
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02 Apr
The Financial Support of RUDN Scientific Journals: Results Are Announced

The results of the contest launched to support the development of scientific journals of RUDN University are summed up. The purpose of the contest is to contribute to the improvement of the academic reputation of RUDN University both as a research center and a publisher of authoritative scientific journals.

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02 Apr
RUDN Tree Talkers Will Monitor the State of Trees in Moscow

In 2020, the Moscow City Government will begin to monitor urban trees using devices created by RUDN scientists. This was announced by the head of Moscow Department of Nature Management and Environmental Protection Anton Kulbachevsky during the 20th anniversary meeting of the Panel of the Department. The event was held on March 2, 2020. Elvira Dovletyarova, head of the Department of Landscape Design and Sustainable Ecosystems of the Agrarian and Technological Institute of RUDN University took the floor as a visiting expert.

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02 Apr
RUDN University Chemist Invented a "Line Production" Method of Synthesis of 28 Biologically Active Molecules

A chemist at RUDN University has invented a new method for the synthesis of a large group of complex poly-heterocyclic organic compounds, which draw interest as possible future medications. The researcher turned to a two-step reaction, in which he used affordable and cheap organic reagents and catalysts based on gold, which allowed him to synthesize as many as 28 new molecules. This approach will significantly expand the libraries of biologically active substances. The work was published in Organic & Biomolecular Chemistry.

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