Name: experimental protocol to investigate particle aerosolization of a product under abrasion and under environmental weathering
Uploaded: 2016-09-16T13:00:00
Description: Watch this Scientific Journal Video about Experimental Protocol to Investigate Particle Aerosolization of a Product Under Abrasion and Under Environmental Weathering at JoVE.com

This work was carried out in the framework of the Labex SERENADE (ANR-11-LABX-0064) and the A*MIDEX Project (ANR-11-IDEX-0001-02), funded by the French Government program, Investissements d'Avenir, and managed by the French National Research Agency (ANR). We thank the French Ministry of Environment (DRC 33 and Program 190) and ANSES (Nanodata Project 2012/2/154, APR ANSES 2012) for financing the work. We are equally grateful to Olivier Aguerre-Chariol, Patrice Delalain, Morgane Dalle, Laurent Meunier, Pauline Molina, and Farid Ait-Ben-Ahmad for their cooperation and advice during the experiments.

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В настоящей статье, экспериментальное исследование нанобезопасности-по-дизайн коммерческих продуктов наноструктурированных представлена. Нанобезопасности-по-дизайн любого продукта могут быть изучены с точки зрения его PNC и PSD, когда он подвергается механическим нагрузкам и атмосфе?...

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	</colgroup>
	<tbody>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Photocal Masonry</td>
			<td style="width:99px;">Nanofrance Technologies</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">Test sample</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Masonry brick (ref. 901796)</td>
			<td style="width:99px;">Castorama</td>
			<td style="width:119px;"></td>
			<td>Support for test sample</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">Optical microscope (model Imager.M1m)</td>
			<td style="width:99px;">Carl Zeiss 
			MicroImaging GmbH</td>
			<td style="width:119px;"></td>
			<td>For microcopic analysis</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Energy-dispersion spectroscope (model X-max)</td>
			<td style="width:99px;">Oxford Instruments</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For elemental composition analysis</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Transmission Electron 
			Microscope (model CM12)</td>
			<td style="width:99px;">Philips</td>
			<td style="width:119px;"></td>
			<td>For microcopic analysis</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Weathering chamber (model Suntest XLS+)</td>
			<td style="width:99px;">Atlas</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For accelerated artificial weathering</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Xenon arc lamp (model NXE 1700)</td>
			<td style="width:99px;">Ametek SAS</td>
			<td style="width:119px;"></td>
			<td>UV rays source</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">Inductively Coupled Plasma Mass spectrometer (model 7500cx)</td>
			<td style="width:99px;">Agilent Technologies</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For leachate 
			water samples analysis</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Taber linear abraser (model 5750)</td>
			<td style="width:99px;">Taber Inc.</td>
			<td style="width:119px;"></td>
			<td>For abrasion</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Taber H38 abradant</td>
			<td style="width:99px;">Taber Inc.</td>
			<td style="width:119px;"></td>
			<td>For abrasion</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">Condensation Particle Counter 3775</td>
			<td style="width:99px;">TSI</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For counting number concentration of aerosol particles</td>
		</tr>
		<tr height="50">
			<td height="50" style="height:50px;width:216px;">Aerodynamic Particle Sizer 3321</td>
			<td style="width:99px;">TSI</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For measuring the size of aerosol particles&#160;</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Differential Mobility Analyzer 3081</td>
			<td style="width:99px;">TSI</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For measuring the size of aerosol particles&#160;</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Mini Particle Sampler</td>
			<td style="width:99px;">Ecomesure</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For sampling the aerosol particles</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Gilian LFS-113 Low Flow Personal Air Sampling Pump</td>
			<td style="width:99px;">Sensidyne</td>
			<td style="width:119px;"></td>
			<td style="width:167px;">For sampling the aerosol particles</td>
		</tr>
	</tbody>
</table>

experimental protocol to investigate particle aerosolization of a product under abrasion and under environmental weathering

The present article presents an experimental protocol to investigate particle aerosolization of a product under abrasion and under environmental weathering, which is a fundamental element to the approach of nanosafety-by-design of nanostructured products for their durable development. This approach is basically a preemptive one in which the focus is put on minimizing the emission of engineered nanomaterials' aerosols during the usage phase of the product's life cycle. This can be attained by altering its material properties during its design phase without compromising with any of its added benefits. In this article, an experimental protocol is presented to investigate the nanosafety-by-design of three commercial nanostructured products with respect to their mechanical solicitation and environmental weathering. The means chosen for applying the mechanical solicitation is an abrasion process and for the environmental weathering, it is an accelerated UV exposure in the presence of humidity and heat. The eventual emission of engineered nanomaterials is studied in terms of their number concentration, size distribution, morphology and chemical composition. The purpose of the protocol is to study the emission for test samples and experimental conditions which are corresponding to real life situations. It was found that the application of the mechanical stresses alone emits the engineered nanomaterials' aerosols in which the engineered nanomaterial is always embedded inside the product matrix, thus, a representative product element. In such a case, the emitted aerosols comprise of both nanoparticles as well as microparticles. But if the mechanical stresses are coupled with the environmental weathering, the experimental protocol reveals then the eventual deterioration of the product, after a certain weathering duration, may lead to the emission of the free engineered nanomaterial aerosols too.

тестовые образцы Протоколы, представленные в статье были применены к трем различным коммерческим продуктам наноструктурных. Акцент ставится здесь на деталях экспериментального подхода: (а) алюмо-силикатного кирпича армированных наночастицами TiO ...

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Experimental Protocol to Investigate Particle Aerosolization of a Product Under Abrasion and Under Environmental Weathering

В этой статье экспериментальный протокол для исследования аэрозолизацию частиц продукта под истирания и под экологической выветривание представлена. Результаты по эмиссии наноматериалов, в виде аэрозолей представлены. Конкретный экспериментальная установка описана подробно.

Экспериментальный протокол по расследованию частиц аэрозолизация продукта Под истирания и по охране окружающей среды выветривания

The present article presents an experimental protocol to investigate particle aerosolization of a product under abrasion and under environmental ...

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Engineering

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