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Aplicações biomédicas do cério
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Abstract(s)
O cério é um dos 15 elementos químicos que compõem o grupo dos lantanídeos da tabela periódica. Na natureza, é considerado o metal mais abundante do seu grupo, de simples purificação e o segundo mais leve dos lantanídeos. Estas e outras características suscitaram interesse a diversas indústrias que começaram a explorar as suas propriedades.
Ao longo dos anos, o cério tem-se tornado um elemento muito promissor nas áreas da biologia e da medicina.
O nitrato de cério tem exibido uma significativa capacidade de inibir o crescimento de certos microrganismos, e desta forma, torna-se vantajoso incluí-lo em dispositivos médicos para a prevenção de infeções provocadas por cateteres. Além disso, este sal, também está disponível como adjuvante ao creme sulfadiazina de prata para o tratamento tópico de queimaduras extensas, necroses complicadas e úlceras venosas.
O iodeto de cério tem sido amplamente estudado com o intuito de induzir o encolhimento de tumores.
A aplicação biológica de nanopartículas de óxido de cério começou a ser pesquisada no início do século XXI, devido ao seu carácter antioxidante.
O presente trabalho é elaborado com o recurso a diversas vias de informação, e assim, expõe uma perspetiva histórica baseada em várias evidências científicas relacionadas com as propriedades e aplicações do cério na área da biomedicina.
Cerium is one of the 15 chemical elements in the lanthanides group of the periodic table. In nature, it is considered the most abundant metal of his group, the second lightest element of the lanthanides and also the one with a simple purification process. These and other characteristics increase the interest of several industries, which started to explore its proprieties. Over the years, cerium has become a promising element in areas such biology and medicine. As cerium Nitrate has shown a high capacity of inhibit the growth of some microorganisms, it becomes advantageous to include it in the medical devices in order to prevent infections from catheters. Besides that, this salt, is also available as an adjuvant in the silver sulfadiazine cream, used for topical treatment of extensive burns, complicated necrosis and venous ulcers. Cerium iodide has been widely studied to induce the shrinkage of tumors. The biological application of cerium oxide nanoparticles started to be researched in the early years of the XXI century, because of its antioxidant character. This thesis is elaborated with the aid of several information sources, and thus, exposes an historical perspective based in various scientific evidences related to the properties and application of cerium in the biomedicine area.
Cerium is one of the 15 chemical elements in the lanthanides group of the periodic table. In nature, it is considered the most abundant metal of his group, the second lightest element of the lanthanides and also the one with a simple purification process. These and other characteristics increase the interest of several industries, which started to explore its proprieties. Over the years, cerium has become a promising element in areas such biology and medicine. As cerium Nitrate has shown a high capacity of inhibit the growth of some microorganisms, it becomes advantageous to include it in the medical devices in order to prevent infections from catheters. Besides that, this salt, is also available as an adjuvant in the silver sulfadiazine cream, used for topical treatment of extensive burns, complicated necrosis and venous ulcers. Cerium iodide has been widely studied to induce the shrinkage of tumors. The biological application of cerium oxide nanoparticles started to be researched in the early years of the XXI century, because of its antioxidant character. This thesis is elaborated with the aid of several information sources, and thus, exposes an historical perspective based in various scientific evidences related to the properties and application of cerium in the biomedicine area.
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Keywords
Cério Nitrato de cério Oxido de cério Sulfadiazina de prata Biomédicas Propriedades Cerium Cerium nitrate Cerium oxide Silver sulfadiazine Biomedicine Properties