Navigation Links
Dangerous printer particles identified
Date:2/11/2009

The identity and origin of tiny, potentially hazardous particles emitted from common laser printers have been revealed by a new study at Queensland University of Technology.

Professor Lidia Morawska from QUT's International Laboratory for Air Quality and Health lead the study to answer questions raised by earlier findings that almost one third of popular laser printers emitted large numbers of ultrafine particles.

These tiny particles are potentially dangerous to human health because they can penetrate deep into the lungs.

Professor Morawska said the latest study found that the ultrafine particles formed from vapours produced when the printed image is fused to the paper.

"In the printing process, toner is melted and when it is hot, certain compounds evaporate and those vapours then nucleate or condense in the air, forming ultrafine particles." she said

"The material is the result of the condensation of organic compounds which originate from both the paper and hot toner."

The study compared a high emitting printer with a low emitting printer and found that there were two ways in which printers contributed to the formation of these particles.

"The hotter the printer gets, the higher the likelihood of these particles forming, but the rate of change of the temperature also contributes," Professor Morawska said.

"The high emitting printer operated at a lower average temperature, but had rapid changes in temperature, which resulted in more condensable vapour being emitted from the printer.

"The printer with better temperature control emitted fewer particles"

Professor Morawska said this research provided information which would help consumers better understand the risks of laser printers and would help the printer industry to design low or no emission printers.


'/>"/>

Contact: Rachael Wilson
rachael.wilson@qut.edu.au
Queensland University of Technology
Source:Eurekalert

Page: 1

Related biology news :

1. NYU scientists discover dangerous new method for bacterial toxin transfer
2. Mayo researchers identify dangerous two-faced protein crucial to breast cancer spread and growth
3. Warming world in range of dangerous consequences
4. Humans response to risk can be unnecessarily dangerous, finds Tel Aviv University study
5. Study shows mercury levels from products decreasing, though still at dangerous levels
6. Genetic breakthrough explains dangerously high blood glucose levels
7. Detecting dangerous chemicals with lasers, exploring the brains circuitry with light and more
8. A chilling glimpse inside the minds of dangerous criminals
9. Defining genes role may lead to prevention of dangerous corn toxin
10. Dolphin therapy a dangerous fad, Emory researchers warn
11. Dangerous liaisons
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... The National Institutes of Health (NIH) awarded ... to develop an electrode array system that will ... works through unprecedented resolution and scale. , LLNL,s ... support President Obama,s BRAIN (Brain Research through ... effort to revolutionize our understanding of the human ...
(Date:9/30/2014)... can live in almost any aquatic environment on Earth, ... many species are pushed to the limit. The amount ... prove critical for how different species cope in the ... University of Gothenburg, published in the scientific journal ... change continues apace thanks to increasing levels of greenhouse ...
(Date:9/30/2014)... know what goes wrong with your muscles because of age, ... "normal" actually is. That,s where a new research report published ... Journal comes in. In the report, a team ... that can help scientists "see" which genes are active in ... never-before-detected gene activity and that men have approximately 400 more ...
Breaking Biology News(10 mins):NIH taps lab to develop sophisticated electrode array system to monitor brain act 2NIH taps lab to develop sophisticated electrode array system to monitor brain act 3Shape up quickly -- applies to fish, too! 2Scientists identify which genes are active in muscles of men and women 2
... OAK RIDGE, Tenn., Dec. 16, 2013 By controlling ... at the Department of Energy,s Oak Ridge National Laboratory ... solar cells, computer monitors, TV screens, eye glasses and ... structures and being able to precisely control the diameter ...
... Every year the approach of flu season sets off a ... many different strains of flu and they vary from year ... guess and tell manufacturers which variants of the flu they ... flu-related illnesses can kill 3,000 to 49,000 Americans annually, according ...
... a nucleic acid involved in protein synthesis, is widely ... expression in different organisms. The types and quantities of ... expressed, providing insight on the genes responsible for particular ... and quantitative PCR, are available for studying gene expression. ...
Cached Biology News:ORNL devises recipe to fine-tune diameter of silica rods 2Stanford researchers take a step toward developing a 'universal' flu vaccine 2Stanford researchers take a step toward developing a 'universal' flu vaccine 3Stanford researchers take a step toward developing a 'universal' flu vaccine 4A universal RNA extraction protocol for land plants 2A universal RNA extraction protocol for land plants 3
(Date:9/30/2014)... 2014 Fast, semi-automatic creation ... in documents ChemAxon , a ... services for life science research, launches ChemCurator, an ... structures from documents. Markush structures are ... generating and understanding Markush structures is a difficult ...
(Date:9/30/2014)... , Sept. 30, 2014  KemPharm, Inc., ... discovery and development of proprietary new molecular entity ... Patent and Trademark Office (USPTO) issued U.S. Patent ... entitled, "Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl ... Making and Use Thereof." The patent, ...
(Date:9/30/2014)... September 30, 2014 iLab Solutions announced ... Benchmarking study which focuses on core facility operations, ... core managers face today. , In its 4th year ... of note is the year-over-year decrease in the percentage ... appear to be feeling the constraints of this trend. ...
(Date:9/30/2014)... CT (PRWEB) September 30, 2014 ... non-profit funder of Lyme disease research at universities, today ... researchers focused on the identification, treatment and cure for ... it had received the most applications in its history—over ... , “While we were pleased to receive so ...
Breaking Biology Technology:ChemAxon Introduces ChemCurator for Chemical Information Extraction and Markush Structure Creation 2KemPharm, Inc. Receives Patent from the USPTO for Novel Prodrug of Hydromorphone, KP511 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 3Lyme Research Alliance Awards Nearly $600,000 in New Grants 2Lyme Research Alliance Awards Nearly $600,000 in New Grants 3Lyme Research Alliance Awards Nearly $600,000 in New Grants 4
... March 27 Zinsser Analytic and ThalesNano today announced ... in the territory of Germany, Switzerland and Austria."We are ... Zinsser is a leader in automation and a brand ... Ferenc Darvas, president and chairman of ThalesNano Inc. ...
... Calif., March 26 On March 18th, Frost ... diabetes research award. The award was given in recognition ... Test , which uses glycated albumin to ... body.(Photo: http://www.newscom.com/cgi-bin/prnh/20090326/LA89768 )Diabetes is one of the ...
... Microscopic World , ... Baltimore, MD (PRWEB) March 26, 2009 -- With ... the Maryland Science Center takes the same telescopic technology used to view ... is a 4,000 square foot exhibit featuring dozens of interactive components and ...
Cached Biology Technology:Zinsser Analytic and ThalesNano Collaborate on Distributing Products 2Frost & Sullivan Award Highlights Opportunity for 'Main Street' Biotech 2Cells Exhibition Opens at Maryland Science Center 2Cells Exhibition Opens at Maryland Science Center 3
Antibody specific for histone H3 acetylated at any of the five N-terminal lysine residues. Rabbit polyclonal serum. Antigen: Synthetic peptide derived from histone H3 N-terminal region, mulitpliy...
The FailSafe™ PROBES Real-Time PCR System enables rapid, precise optimization of PCR experiments in which the product is detected using fluorescent target-specific labeled probes....
NuParaffin Kit Application: Flow Cytometry Reactivity: Human...
Immunofixation Gel Kit, requires IF100 Reactivity: Human Applications: Immunofixation ...
Biology Products: