abstract oncology nanoshells english

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Instituto Superior Técnico – Faculdade de Medicina de Lisboa Physiology of Body Systems 1 st Semester 2007/2008 Date: 14 December 2007 Investigation Work – “Biomedical Devices” Working Group (Name, St. Number) André Cardoso 58566 Eduardo Bicacro 58615 Miguel Machado 58557 Pedro Teixeira 58482 Simão Luz 56550 Tiago Robalo 58481 Sub‐Theme: “Nanoshells – Nanotechnology in the Diagnostic, Imaging and treatment of Cancer” Presentation Abstract: Nowadays, cancer is one of the major causes of dear around the world, although the huge investment and human resources dedicated to the investigation in this area. In Portugal, in the year of 2003, 23 thousand people died from this disease, which was the second major cause of dead 1 . According to BBC 2 , the scientific community estimates that in the year 2020 there will arise 15 million cases of cancer and 10 million dead due to the disease. In the era of human genome mapping, the scientists have various knowledge about the biochemical and biomolecular phenomenon’s that drive the abnormal cell proliferation and may lead to a malignant tumor. It has been evident, in the recent years, the lack of technology capable of transforming this molecular knowledge in improving patient’s quality of life. There is an important necessity to find more exact methods, with more sensitivity and economical viable to detect and treat cancer. Here, Nanotechnology may represent a crucial role. In the last years, the nanotechnology development brought scientists new particles with length, magnetic, optic and thermal properties, which made them a potential path to acquire the diagnostically, imaging and treatment techniques capable to respond to the urgent necessity in innovation in this biomedical area. We may observe that the majority of the cells has between 10.000 and 20000 nanometers in diameter, while the nanodevices have approximately 100 nanometers, factor which make possible their entrance in the call and their organelles, interactions with DNA, proteins or other determinant molecules in the cell cycle control. In this session we will talk about the fundaments, applications and the future tendencies of nanotechnology applied to medicine, focusing specifically in Nanoshells. These devices are made with an internal part of silica and a gold shell. There structure offers unique properties for interaction with radiation, permit the usage as contrasting agent for medical imaging and may also be used as temperature shift, destroying the cells, which are connected to them. We will present how is it secure that nanoshells connect preferentially to tumor cells. This will be achieved by the connection of the particles with specific anti‐bodies for the sub‐expressed antigens in the cancer cells. During our presentation, we will answer about questions that this theme rises, such as: What is nanotechnology? What the advantages of the use in medical problems? How are nanoshells made and how can them be used in fighting cancer? How can we explain those properties? What molecular processes occur at cellular level that can distinguish cancer cells from healthy cells? How may we connect the nanotechnological devices to the cells? What are the risks? What are the future expectations about these techniques? Key words: Nanotechnology; Cancer; Diagnostic; Treatment; Nanoshells; Carcinogen marks. 1 2 http://www.mundopt.com/n‐cancro‐e‐a‐segunda‐causa‐de‐morte‐em‐portugal‐10038.html BBC News ‐ http://news.bbc.co.uk/1/hi/health/1517668.stm

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Page 1: Abstract Oncology Nanoshells English

Instituto Superior Técnico – Faculdade de Medicina de Lisboa  Physiology of Body Systems 1st Semester 2007/2008 

                                                   Date: 14 December 2007  Investigation Work – “Biomedical Devices”                              Working Group (Name, St. Number)  André Cardoso   58566   Eduardo Bicacro  58615      Miguel Machado  58557   Pedro Teixeira  58482   Simão Luz  56550   Tiago Robalo  58481    Sub‐Theme: “Nanoshells – Nanotechnology in the Diagnostic, Imaging and treatment of Cancer”    Presentation Abstract:     

Nowadays, cancer is one of the major causes of dear around the world, although the huge investment and human resources dedicated to the investigation in this area. In Portugal, in the year of 2003, 23 thousand people died from this disease, which was the second major cause of dead1. According to BBC2 , the scientific community estimates that in the year 2020 there will arise 15 million cases of cancer and 10 million dead due to the disease. 

In the era of human genome mapping, the scientists have various knowledge about the biochemical and biomolecular phenomenon’s that drive the abnormal cell proliferation and may lead to a malignant tumor. It has been evident, in the recent years, the lack of technology capable of transforming this molecular knowledge in improving patient’s quality of life. There is an important necessity to find more exact methods, with more sensitivity and economical viable to detect and treat cancer. Here, Nanotechnology may represent a crucial role. 

In the last years, the nanotechnology development brought scientists new particles with length, magnetic, optic and thermal properties, which made them a potential path to acquire the diagnostically, imaging and treatment techniques capable to respond to the urgent necessity in innovation in this biomedical area. We may observe that the majority of the cells has between 10.000 and 20000 nanometers in diameter, while the nanodevices have approximately 100 nanometers, factor which make possible their entrance in the call and their organelles, interactions with DNA, proteins or other determinant molecules in the cell cycle control. 

In this session we will talk about the fundaments, applications and the future tendencies of nanotechnology applied to medicine, focusing specifically in Nanoshells. These devices are made with an internal part of silica and a gold shell. There structure offers unique properties for interaction with radiation, permit the usage as contrasting agent for medical imaging and may also be used as temperature shift, destroying the cells, which are connected to them. We will present how is it secure that nanoshells connect preferentially to tumor cells. This will be achieved by the connection of the particles with specific anti‐bodies for the sub‐expressed antigens in the cancer cells. 

During our presentation, we will answer about questions that this theme rises, such as: What is nanotechnology? What the advantages of the use in medical problems? How are nanoshells made and 

how can them be used in fighting cancer? How can we explain those properties? What molecular processes occur at cellular level that can distinguish cancer cells from healthy cells? How may we connect the nanotechnological devices to the cells? What are the risks? What are the future expectations about these techniques? 

 Key words: Nanotechnology; Cancer; Diagnostic; Treatment; Nanoshells; Carcinogen marks.  

1 2  http://www.mundopt.com/n‐cancro‐e‐a‐segunda‐causa‐de‐morte‐em‐portugal‐10038.html   BBC News ‐ http://news.bbc.co.uk/1/hi/health/1517668.stm