Navigation Links
Empa X-ray expert 'decodes' diesel soot
Date:8/6/2012

Soot particles are dangerous there is nothing new in this knowledge. But what is it that makes fine particulates dangerous? Is it only diesel soot from vehicle engines? Does the danger also come from wood-burning stoves in holiday chalets? Or even from grease-laden fryer fumes from the restaurant around the corner? For a long time, these questions have been a hard nut for science to crack. Indeed, fine soot particles were collected in filters and their chemical components were analysed. Yet the question remained: what precisely is the source of the danger? Is it the soot particles themselves that make people ill? Or is it toxic chemicals the soot carries with it like a wet sponge?

Not all smoke is created equal

The Norwegian Institute of Public Health wanted to investigate this matter and asked Empa scientist Artur Braun for support. Before joining Empa, Braun had worked at the University of Kentucky and there, in 2002, he analyzed soot particles for the first time on a synchrotron using soft X-rays. Result: diesel particles that have been "born" in the engine under high pressure and immense heat have a graphite structure this is clearly visible under X-ray light. In the case of soot particles from wood fires, which have been generated under mild atmospheric conditions, this graphite structure is absent. The functional groups are also different: diesel soot was found to contain carboxyl groups such as those occurring in formic and acetic acid molecules; in the wood smoke, Braun found hydroxyl groups as in ethanol and methanol. There is thus a fine difference between smoke and smoke.

Analyse separately, fight together

The Norwegian toxicologists then went a step further and asked Braun's colleagues at the University of North Dakota to isolate the soot particles from the adherent chemical toxic substances using solvents. Braun then analysed the components individually under X-ray light: first the "bare" soot p
'/>"/>

Contact: Dr Artur Braun
arthur.braun@empa.ch
41-587-654-850
Swiss Federal Laboratories for Materials Science and Technology (EMPA)
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Screening for breast cancer without X-rays: Lasers and sound merge in promising diagnostic technique
2. Dental X-Rays May Be Linked to Benign Brain Tumors
3. In-Person Bullying Still Bigger Problem Than Cyberbullying: Expert
4. Extreme Heat Biggest Weather Killer, Expert Warns
5. Expert Tips May Help Kids Avoid Allergens at School
6. Signs of ADHD Evident by Preschool, Expert Says
7. Experts Offer Tips to Cut Kids Screen Time During Summer
8. Whats That Symptom? Experts Warn of Self-Diagnosis Via the Web
9. Public health expert David Dausey calls BPA ban hollow victory
10. All HIV Patients Should Take Meds Early On, Experts Now Say
11. Tornadoes Dont Have to Be Deadly, Experts Say
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/23/2014)... Columbus, OH (PRWEB) November 23, 2014 ... claims on behalf of Ohio and West Virginia residents ... and other health disorders due to drinking C8 ... Plant In Parkersburg, West Virginia. According to the C8 ... because they either worked or lived in at least ...
(Date:11/22/2014)... November 23, 2014 A new AlignLife ... doors in the downtown Greenville area. Dr. Chelsea Sineath, ... , decided to open her own clinic after working ... with the patients. , AlignLife believes that the ... With a focus on chiropractic care and rehabilitation to ...
(Date:11/22/2014)... November 23, 2014 A classic black prom ... the most famous dress suppliers, has unveiled its new items ... dresses are now offered at a big discount, up to ... offer. , The new black prom dresses, made with ... to meet the needs of all customers, the company provides ...
(Date:11/22/2014)... NY (PRWEB) November 22, 2014 ... Goods Administration (TGA) approved it for use “as ... approved and listed within the Therapeutic Goods (Listing) ... , Kyowa Hakko’s Setria® Glutathione will be ... biotech specialist that sources and imports fine chemicals ...
(Date:11/22/2014)... TX (PRWEB) November 22, 2014 ... (ICS) as the complaint that the individual has ... for voiding. The report “Nocturia – Pipeline Review, ... development for Nocturia, complete with comparative analysis at ... of action (MoA), route of administration (RoA) and ...
Breaking Medicine News(10 mins):Health News:40 C8 Lawsuit Claims Filed By Wright & Schulte LLC Alleged Serious Illness Due To C8 Contaminated Water In Ohio And West Virginia 2Health News:40 C8 Lawsuit Claims Filed By Wright & Schulte LLC Alleged Serious Illness Due To C8 Contaminated Water In Ohio And West Virginia 3Health News:40 C8 Lawsuit Claims Filed By Wright & Schulte LLC Alleged Serious Illness Due To C8 Contaminated Water In Ohio And West Virginia 4Health News:AlignLife of Downtown Greenville is Now Open and Accepting New Patients 2Health News:New Black Prom Dresses from BellasDress.com 2Health News:Setria® Glutathione Now Available in Australia 2Health News:Setria® Glutathione Now Available in Australia 3Health News:Nocturia Therapeutic Pipeline Market Review by Drugs and Companies H2 2014 Report at RnRMarketResearch.com 2Health News:Nocturia Therapeutic Pipeline Market Review by Drugs and Companies H2 2014 Report at RnRMarketResearch.com 3Health News:Nocturia Therapeutic Pipeline Market Review by Drugs and Companies H2 2014 Report at RnRMarketResearch.com 4
... order to realize international health goals aiming to improve ... health rights is crucial. In an editorial published this ... PLoS Medicine editors argue that action on maternal ... resources as much as it does access to basic ...
... as hair, nails, sweat glands and mammary glandsare rare ... States, according to a report in the June issue ... JAMA/Archives journals. "Cutaneous appendageal carcinomas are a rare ... that frequently present a diagnostic challenge," the authors write ...
... reveals that patients with diabetes who are hospitalized ... experience longer time in the hospital and are also ... without diabetes., High blood sugar may cause more severe ... by Dr. Ali Parappil of the Department of Respiratory ...
... study , MONDAY, June 21 (HealthDay News) -- Using ear ... receive cochlear implants, a new study finds. , U.S. researchers ... who received ear tubes before cochlear implants. In 46 (59 ... cochlear implantation surgery. In all the other cases, the ear ...
... seem more likely to develop allergies, asthma, study ... who are born vaginally pick up different bacteria than ... how their immune systems develop, a new study suggests. ... why babies born through cesarean sections appear to be ...
... ancient language provides new insights into the nature of ... study, "Dvandvas, Blocking, and the Associative: The Bumpy Ride ... June 2010 issue of the scholarly journal Language, ... A preprint version is available on line at:, http://lsadc.org/info/documents/2010/press-releases/kiparsky.pdf ...
Cached Medicine News:Health News:Cancers of sweat glands, other skin-related structures may be increasing in United States 2Health News:Ear Tubes Appear to Be Safe Before Cochlear Implantation 2Health News:Delivery Method May Determine the Bacteria Babies Acquire 2Health News:Delivery Method May Determine the Bacteria Babies Acquire 3Health News:The 'bumpy ride' of linguistic change 2
(Date:11/22/2014)... , 21 de noviembre de 2014 /PRNewswire/ ... ensayos clínicos externalizados y tecnologías eClinical, ha indicado ... de ,seguimiento inteligente, para el seguimiento basado en ... inteligente amplía el concepto del seguimiento basado en ... de las visitas de seguimiento o cambio de ...
(Date:11/22/2014)... -- MEDITE Group acquired by CytoCore, Inc. (OTCBB: CYOE) on ... quarter sales ended September 30, 2014 of $8.7 million ... months ended September 2014 and a $38,000 loss for the ... quarter is usually a seasonable weak period due to the ... many countries worldwide, we are proud to announce record sales ...
(Date:11/22/2014)... 2014 Many power shifts are occurring ... of patients in the biopharmaceutical market is impacting ... than ever, understanding how to effectively acquire, convert, ... essential. According to recent research ... spent about two-thirds of their patient-focused dollars on ...
Breaking Medicine Technology:El 'seguimiento inteligente' consigue un excelente momento 2El 'seguimiento inteligente' consigue un excelente momento 3CytoCore Inc. / MEDITE Cancer Diagnostics, Inc. Reports Record YTD and 3rd Quarter Sales 2CytoCore Inc. / MEDITE Cancer Diagnostics, Inc. Reports Record YTD and 3rd Quarter Sales 3New Report Details Importance of Adopting a "Patient Journey" Framework in Marketing 2
... Dec. 22, 2010 Scott & White Healthcare has ... be the home for a new 143-bed acute care ... Investors and College Station ISD. The ... located at the intersection of Texas Hwy 6 and ...
... 2010 Arena Pharmaceuticals, Inc. (Nasdaq: ARNA ) ... meeting with the US Food and Drug Administration (FDA) for ... meeting discussions reinforce our position that we have a path ... Arena,s President and Chief Executive Officer. "Based on guidance we ...
Cached Medicine Technology:Scott & White Finalizes College Station Land Deal 2Arena and Eisai Complete End-of-Review Meeting with FDA for Lorcaserin New Drug Application 2Arena and Eisai Complete End-of-Review Meeting with FDA for Lorcaserin New Drug Application 3Arena and Eisai Complete End-of-Review Meeting with FDA for Lorcaserin New Drug Application 4Arena and Eisai Complete End-of-Review Meeting with FDA for Lorcaserin New Drug Application 5
Colloidal Gold Sol, 40 nm - 12 - 15, 1 ml, Gold Sol Nanoparticles - not boiled, not centrifuged...
... magnification all glass (1.5x) Gonio lens will ... ease., The 4 mirror lens is the ... dynamic gonioscopy and features : , ... appreciate details previously unattainable with Gonio lenses., ...
Colloidal Gold Sol, 20 nm - 50 OD, 1 ml, Gold Sol Nanoparticles - not boiled, not centrifuged...
... The PalmScan P2000 Pachymeter [i.e., PalmScan ... portable,battery operated biometer, which incorporates A-mode ... used to accurately measure the corneal ... human eyes. PalmScan P2000 includes two ...
Medicine Products: