Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Black Mark For A Fuggy Room

29.08.2005


A device called “passive chemical dosimeter” will help to identify the quantity of poisonous substances and to determine particular substances inhaled by interlocutors of a smoker. The device is being developed by the Kazan chemists, financial support being provided by the International Science and Technology Center.



The smoking-room of the Lenin State Library – this is the proper place for catching eligible bachelors, as a heroine of the Oscar-winner film “Moscow Does Not Believe in Tears” assured her friend. Alas, as the Kazan chemists claim, this is not the sole thing one can catch in a smoking-room. The device they are developing with sponsorship of the International Science and Technology Center allows to determine the quantity of poisonous substances threatening with oncological diseases got into the organism of any person who was simply sitting the smoking-room for some time. In the future, these will be personal dosimeters – similar to those which allow to promptly determine the radiation dose caught by a person in a radioactive contamination zone.

The concept of operation of chemical dosimeters invented by specialists of the Kazan State Technological University is rather simple. It is necessary to take a plate of a multiple-purpose sorbent applied to an undercoat and to impregnate the sorbent with a special compound. It will react with the compound hazardous to health that are formed in the air in the course of tobacco smouldering. It would be better if reaction products were tinted in different colors. Then, the sorbent’s color and intensity of coloration will help to determine the quantity and the kind of poison a visitor of a smoking-room happened to encounter. And also the dose of these substances a visitor caught during the time (s)he spent in the smoking-room, as it is highly unlikely that (s)he was sitting there in a gas-mask.


To begin with, the chemists found out what substances particularly hazardous to health may be found in cigarette smoke. It has turned out that they are numerous and diverse! Although, for competent people this has been no secret for a long time: smoke contains the entire assortment of heavy organic synthesis plants, but smokers seem to prefer not to think about it. But it is worth knowing that the greatest danger lies not in the smoke they breathe in with each inhalation, but in what is elegantly flowing from the tip of a cigarette while they hold it in hand and simply talk or think, i.e. when tobacco smoulders by itself between inhalations.

However, it is particularly in the intervals between inhalations that the major part of tobacco – almost three quarters of it – burns down. It is the so-called by-product smoke that contains most of carbon monoxide, benzopyrenes and aromatic amine – which are extremely harmful substances. It is fearful, but the content f amine (which causes urinary bladder cancer) is generally 30 times higher in the by-product smoke than in the basic smoke. Do the persons – who naively assume that if they do not inhale but simply hold a cigarette alight or sit next to a smoker, the smoke is not dangerous for them – know about that?

Having learned what is necessary to identify, the chemists synthesized the required compound. The compound does react with carcinogenic amine, tobacco smoke components, without reacting with other compounds, which, unfortunately, may be found in the air of megapolis - spirits, sulfur oxide, nitric oxide and many others. Then the sorbent plates impregnated with this compound were standardized: the plates were placed for different periods into the chamber with known quantity of target toxicants, and then the researchers washed off everything accumulated on the sorbent and carried out identification by ordinary analytical methods.

At last the moment of truth came – the plates were hung in the University smoking-rooms and in the chemical laboratory where the air is necessarily “saturated” by various odours including rather dangerous ones. It has turned out that it was not for nothing that chemists previously got milk “for insalubrity”. In the room itself, there were not too many toxicants found, but in the vicinity of the draught where chemists stand during the synthesis, there were pretty much of them. However, it would be good to drink more milk for the persons who are fond of sitting in a smoking-room or having fun in a club or discotheque with a lot of smokers. Sometimes, they catch the higher dose of carcinogenic substances than chemists do particularly if they are breathing in cigarette smoke for hours.

Sergey Komarov | alfa
Further information:
http://informnauka.ru

More articles from Health and Medicine:

nachricht GLUT5 fluorescent probe fingerprints cancer cells
20.04.2018 | Michigan Technological University

nachricht Scientists re-create brain neurons to study obesity and personalize treatment
20.04.2018 | Cedars-Sinai Medical Center

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Structured light and nanomaterials open new ways to tailor light at the nanoscale

23.04.2018 | Physics and Astronomy

On the shape of the 'petal' for the dissipation curve

23.04.2018 | Physics and Astronomy

Clean and Efficient – Fraunhofer ISE Presents Hydrogen Technologies at the HANNOVER MESSE 2018

23.04.2018 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>