کاربرد فناوری نانو در بهبود کیفیت تصاویر MRI
@nanotech1
از جمله روش های تصویربرداری MRI است که سابقه ی زیادی در پزشکی دارد. با این حال حساسیت این روش پایین است. فناوری نانو تاکنون اثر قابل توجهی بر افزایش کیفیت تصاویر MRI و در نتیجه تشخیص زودهنگام بیماری ها داشته است. این اثربخشی در دو بخش مرتبط با ساخت دستگاه های جدید با قابلیت های بیشتر و ساخت مواد شیمیایی (بهبود دهنده کنتراست) با استفاده از نانوساختارها بوده است. تحقیقات دانشگاهی و مقالات بسیاری در این زمینه انجام شده اما تعداد اندکی از آن ها به مرحله ی تجاری سازی رسیده است. بنابراین فرصت مناسبی برای محققین داخلی است که به سمت تولید دستگاه هایی با کیفیت بالاتر و وضوح تصاویر بهتر رفته و تولیدات علمی خود را به فناوری تبدیل کنند.👇👇 @nanotech1
@nanotech1
از جمله روش های تصویربرداری MRI است که سابقه ی زیادی در پزشکی دارد. با این حال حساسیت این روش پایین است. فناوری نانو تاکنون اثر قابل توجهی بر افزایش کیفیت تصاویر MRI و در نتیجه تشخیص زودهنگام بیماری ها داشته است. این اثربخشی در دو بخش مرتبط با ساخت دستگاه های جدید با قابلیت های بیشتر و ساخت مواد شیمیایی (بهبود دهنده کنتراست) با استفاده از نانوساختارها بوده است. تحقیقات دانشگاهی و مقالات بسیاری در این زمینه انجام شده اما تعداد اندکی از آن ها به مرحله ی تجاری سازی رسیده است. بنابراین فرصت مناسبی برای محققین داخلی است که به سمت تولید دستگاه هایی با کیفیت بالاتر و وضوح تصاویر بهتر رفته و تولیدات علمی خود را به فناوری تبدیل کنند.👇👇 @nanotech1
Nanostructures in Tarantula Hair Could be Key for Improved Screen Design. @nanotech1
Nanostructures in Tarantula Hair Could be Key for Improved Screen Design
@nanotech1
Researchers have determined that the bright blue colour of tarantulas are the result of multilayer nanostructures present in their hair. The researchers hope to mimic the hairs properties to create new dyes, and to improve the performance of computer and TV screens.
A critically endangered gooty sapphire ornamental tarantula and its reflection. Michael Kern
The research team, from UC San Diego, found that in some tarantula species the ability to grow blue hair has developed due to the presence of nanostructures in their exoskeletons, and not through pigments like in most animals.
This is the first time researchers have observed a species that is able to create hair that is all of the same shade and with non-iridescent color. A non-iridescent color has the same appearance from all viewing angles.
Scientists suggest that the ideas behind the non-iridescently colored tarantula hair could be exploited in the production of new types of dye. Conventional pigments could be replaced by ones that never fade or similar structures could be used to minimize the glare in wide-angle viewing systems such as televisions and smartphones.
There is strikingly little variety in the shade of blue produced by different species of tarantulas. We see that different types of nanostructures evolved to produce the same ‘blue’ across distant branches of the tarantula family tree in a way that uniquely illustrates natural selection through convergent evolution.
Dimitri Deheyn - UC San Diego
In nature birds and butterflies use these nanostructures to produce their bright and beautiful colors which are used in courtship display courtship. However as tarantulas have poor vision this trait is likely to have evolved for a different purpose.
Although the research team has not yet determined the benefits that tarantulas derive from their blue hue, they continue to focus on reproducing the tarantula nanostructures in the laboratory.
The team have also been working on several other biomimetic projects such as research into the interesting optical properties of ragweed pollen. The pollen displays magnetic behavior if it is coated with a material that changes it's level of reflectance, this mimics the behavior of natural pollen which can adjust it's visibility depending on external conditions.
The team hopes to use their ideas to create new types of tracking technology.
The team developed pixel by pixel mapping of a species' color field using a hyperspectral imaging system, a type of high-powered microscope called. This mapping correlated with the shape and geometry of the nanostructures, which resulted in their unique color.
This unique technology allows us to associate structure with optical property. Our inspiration is to learn about how nature evolves unique traits that we could mimic to benefit future technologies.
@nanotech1
@nanotech1
Researchers have determined that the bright blue colour of tarantulas are the result of multilayer nanostructures present in their hair. The researchers hope to mimic the hairs properties to create new dyes, and to improve the performance of computer and TV screens.
A critically endangered gooty sapphire ornamental tarantula and its reflection. Michael Kern
The research team, from UC San Diego, found that in some tarantula species the ability to grow blue hair has developed due to the presence of nanostructures in their exoskeletons, and not through pigments like in most animals.
This is the first time researchers have observed a species that is able to create hair that is all of the same shade and with non-iridescent color. A non-iridescent color has the same appearance from all viewing angles.
Scientists suggest that the ideas behind the non-iridescently colored tarantula hair could be exploited in the production of new types of dye. Conventional pigments could be replaced by ones that never fade or similar structures could be used to minimize the glare in wide-angle viewing systems such as televisions and smartphones.
There is strikingly little variety in the shade of blue produced by different species of tarantulas. We see that different types of nanostructures evolved to produce the same ‘blue’ across distant branches of the tarantula family tree in a way that uniquely illustrates natural selection through convergent evolution.
Dimitri Deheyn - UC San Diego
In nature birds and butterflies use these nanostructures to produce their bright and beautiful colors which are used in courtship display courtship. However as tarantulas have poor vision this trait is likely to have evolved for a different purpose.
Although the research team has not yet determined the benefits that tarantulas derive from their blue hue, they continue to focus on reproducing the tarantula nanostructures in the laboratory.
The team have also been working on several other biomimetic projects such as research into the interesting optical properties of ragweed pollen. The pollen displays magnetic behavior if it is coated with a material that changes it's level of reflectance, this mimics the behavior of natural pollen which can adjust it's visibility depending on external conditions.
The team hopes to use their ideas to create new types of tracking technology.
The team developed pixel by pixel mapping of a species' color field using a hyperspectral imaging system, a type of high-powered microscope called. This mapping correlated with the shape and geometry of the nanostructures, which resulted in their unique color.
This unique technology allows us to associate structure with optical property. Our inspiration is to learn about how nature evolves unique traits that we could mimic to benefit future technologies.
@nanotech1
Liquid-Metal 'Nano-Terminators' Developed for Cancer Treatment. @nanotech1
Liquid-Metal 'Nano-Terminators' Developed for Cancer Treatment
@nanotech1
A novel cancer treatment has been developed that uses nanodroplets to deliver drugs to cancerous cells. The nanodroplets target cancers and once delivered to their target they release therapeutic drugs. The new technique has been shown to enhance the effectiveness of anti-cancer therapy.
Sebastian Kaulizki | Shutterstock
The 'nano-terminators' are created by introducing two different types of polymeric ligands (long-chain molecules that attach to specific molecules) to a liquid gallium indium alloy. Ultrasound waves are then introduced into the solution which cause nanodroplets, of roughly 100 nm diameter, to burst off the liquid metal's suface. http://www.azonano.com/news.aspx?newsID=34195
@nanotech1
A novel cancer treatment has been developed that uses nanodroplets to deliver drugs to cancerous cells. The nanodroplets target cancers and once delivered to their target they release therapeutic drugs. The new technique has been shown to enhance the effectiveness of anti-cancer therapy.
Sebastian Kaulizki | Shutterstock
The 'nano-terminators' are created by introducing two different types of polymeric ligands (long-chain molecules that attach to specific molecules) to a liquid gallium indium alloy. Ultrasound waves are then introduced into the solution which cause nanodroplets, of roughly 100 nm diameter, to burst off the liquid metal's suface. http://www.azonano.com/news.aspx?newsID=34195
Azonano
Liquid-Metal 'Nano-Terminators' Developed for Cancer Treatment
A novel cancer treatment has been developed that uses nanodroplets to deliver drugs to cancerous cells have been developed. The nanodroplets specifically target cancers and once delivered to the cells they release anti-cancer drugs. The new technique has…
کتاب محصولات فناوری نانو در حوزه رنگ، رزین، کامپوزیت و پلیمر👇👇
@nanotech1
کتاب محصولات فناوری نانو در حوزه رنگ، رزین، کامپوزیت و پلیمر با هدف معرفی محصولات تجاریشده فناوری نانو مرتبط با این صنعت تدوین و توسط ستاد ویژه توسعه فناوری نانو منتشر شده است. این مجموعه کتابها در راستای معرفی محصولات و تجهیزات فناوری نانو ساخت ایران که قابلیت بکارگیری و ایجاد ارزش افزوده در صنایع را دارند منتشر میشوند.
در این کتاب پس از معرفی مختصر ستاد ویژه توسعه فناوری نانو و برنامههای توسعه صنعتی این فناوری، به معرفی محصولات تجاریشده مبتنی بر فناوری نانو در حوزه رنگ، رزین، کامپوزیت و پلیمر پرداخته شده است.
گفتنی است، برای هریک از محصولات و تجهیزات ذکر شده در این کتاب، نام کامل، معرفی، نحوه عملکرد، ویژگی، اثرات، اطلاعات شرکت تولید کننده و مجوزهای دریافت شده برای محصول بیان شده است. @nanotech1
@nanotech1
کتاب محصولات فناوری نانو در حوزه رنگ، رزین، کامپوزیت و پلیمر با هدف معرفی محصولات تجاریشده فناوری نانو مرتبط با این صنعت تدوین و توسط ستاد ویژه توسعه فناوری نانو منتشر شده است. این مجموعه کتابها در راستای معرفی محصولات و تجهیزات فناوری نانو ساخت ایران که قابلیت بکارگیری و ایجاد ارزش افزوده در صنایع را دارند منتشر میشوند.
در این کتاب پس از معرفی مختصر ستاد ویژه توسعه فناوری نانو و برنامههای توسعه صنعتی این فناوری، به معرفی محصولات تجاریشده مبتنی بر فناوری نانو در حوزه رنگ، رزین، کامپوزیت و پلیمر پرداخته شده است.
گفتنی است، برای هریک از محصولات و تجهیزات ذکر شده در این کتاب، نام کامل، معرفی، نحوه عملکرد، ویژگی، اثرات، اطلاعات شرکت تولید کننده و مجوزهای دریافت شده برای محصول بیان شده است. @nanotech1