{"id":5609,"date":"2014-02-22T10:05:00","date_gmt":"2014-02-22T10:05:00","guid":{"rendered":"https:\/\/dana.ggiants.de\/how-do-nanomaterials-behave-once-inside-the-body-or-the-environment\/"},"modified":"2024-06-19T15:06:17","modified_gmt":"2024-06-19T13:06:17","slug":"how-do-nanomaterials-behave-once-inside-the-body-or-the-environment","status":"publish","type":"page","link":"https:\/\/nanopartikel.info\/en\/basics\/basics\/how-do-nanomaterials-behave-once-inside-the-body-or-the-environment\/","title":{"rendered":"How do do innovative materials or nanomaterials behave once inside the body or the environment?"},"content":{"rendered":"<h4 style=\"text-align: left;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-5570 alignleft\" src=\"https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_91394079_S_-S.Kobold_NachdenklicherJunge-199x300.jpg\" alt=\"\" width=\"180\" height=\"271\" srcset=\"https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_91394079_S_-S.Kobold_NachdenklicherJunge-199x300.jpg 199w, https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_91394079_S_-S.Kobold_NachdenklicherJunge-99x150.jpg 99w, https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_91394079_S_-S.Kobold_NachdenklicherJunge-230x347.jpg 230w, https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_91394079_S_-S.Kobold_NachdenklicherJunge.jpg 282w\" sizes=\"(max-width: 180px) 100vw, 180px\"\/>Inside the Human Body<\/h4>\n<p>The organs of the body are sealed against the outside by dense cell layers, the so-called epithelia. Particles cannot get into the body unless they overcome this barrier by e.g., disturbing the tight bond between the cells or by penetration into the cells. To achieve this, the particles must overcome the membranes that surround each body cell and seal it from the environment. This process is referred to as <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Endocytosis&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Greek for &amp;lt;em&amp;gt;&eacute;ndon&amp;lt;\/em&amp;gt; - inside and &amp;lt;em&amp;gt;kytos&amp;lt;\/em&amp;gt; - a cell, denotes the inclusion of foreign material (microorganisms, particles or solutes) into the cell through invagination and pinching off of portions of the cell membrane with the formation of a vesicle.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>endocytosis<\/span>. Since the cells continuously take up material from their environment (nutritional components, proteins and sugar, liquids, etc.) endocytosis is a permanent process in almost all body cells.<\/p>\n<p>Particles in the direct vicinity of a cell can be taken up intentionally (for example by active <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Phagocytosis&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Greek &amp;lt;em&amp;gt;phagein&amp;lt;\/em&amp;gt; - to eat. Mechanism of uptake from particles to small cells in a single eukaryotic cell. Usually, particles are taken up by the cells as membrane-bound aggregates, i.e. large aggregates in vesicles, vacuoles or lamellar bodies (cell compartments surrounded by membranes) through phagocytosis. In mammals, phagocytosis is performed mainly by special cells of the immune system, including the macrophages, monocytes (precursor cells of macrophages), and neutrophils (or neutrophilic granulocytes, belonging to the white blood cells). This uptake is an active, regulated process.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>phagocytosis<\/span> through scavenger cells in the lung during its <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Clearance&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;In medicine  it is a measurement of the excretion ability of certain organs like the kidneys or the liver. It corresponds to the calculated plasma volume per unit of time [ml\/min]  which was cleared of a particular substance.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>clearance<\/span>) or unintentionally through inclusion along with other material. Once taken up, they can interact in the cell with different substances. Particles that have penetrated the body are normally discharged via the natural routes of excretion.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h4 style=\"text-align: left;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5499 alignleft\" src=\"https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_75950116_S_-andreusK-295x300.jpg\" alt=\"\" width=\"180\" height=\"183\" srcset=\"https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_75950116_S_-andreusK-295x300.jpg 295w, https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_75950116_S_-andreusK-147x150.jpg 147w, https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_75950116_S_-andreusK-230x234.jpg 230w, https:\/\/nanopartikel.info\/wp-content\/uploads\/2020\/11\/Fotolia_75950116_S_-andreusK.jpg 412w\" sizes=\"(max-width: 180px) 100vw, 180px\"\/>In the Environment<\/h4>\n<p style=\"text-align: left;\">Particles released into the environment can change in many different ways and interact with other components of the environment. In the water they may be transported or bind to <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Natural organic matter&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A group of compounds derived from the decay of dead plants and animals. Natural organic matter is present throughout the ecosystem.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>natural organic matter<\/span> and certain contents of the particles may dissolve. In soil and air, they can form larger assemblies (<span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Agglomerates&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Accumulations of weakly bound particles or aggregates or of compounds of these, whose resulting surfaces are similar to the sum of surfaces of the individual components. Agglomerates are held together by weak forces, for example Van der Waals forces or simple physical hooks. Agglomerates are referred to as secondary particles, while the unbound particles are known as primary particles. See alsoDIN CEN ISO\/TS 80004-2:2017-09, International Organization for Standardization.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>agglomerates<\/span>) e.g., with natural occurring nanoparticles or bind to other organic compounds. Agglomerates may <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;REACH&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Short for&amp;lt;em&amp;gt; Registration, Evaluation, Authorization of Chemicals. &amp;lt;\/em&amp;gt;REACH is the novel EC regulation no. 1907\/2006 that has been in force since June 1, 2007. For further information see https:\/\/echa.europa.eu\/regulations\/reach\/understanding-reach&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>reach<\/span> a size and weight outside the nano-size and sink down in air and water. All these processes determine if and how environmental organisms get into contact with nanoparticles and whether they can be taken up.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Inside the Human Body The organs of the body are sealed against the outside by dense cell layers, the so-called epithelia. Particles cannot get into the body unless they overcome this barrier by e.g., disturbing the tight bond between the cells or by penetration into the cells. To achieve this, the particles must overcome the [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":5611,"parent":5478,"menu_order":14,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"acf":[],"_links":{"self":[{"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/pages\/5609"}],"collection":[{"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/comments?post=5609"}],"version-history":[{"count":7,"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/pages\/5609\/revisions"}],"predecessor-version":[{"id":13811,"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/pages\/5609\/revisions\/13811"}],"up":[{"embeddable":true,"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/pages\/5478"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/media\/5611"}],"wp:attachment":[{"href":"https:\/\/nanopartikel.info\/en\/wp-json\/wp\/v2\/media?parent=5609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}