{"id":73032,"date":"2011-02-09T15:34:12","date_gmt":"2011-02-09T20:34:12","guid":{"rendered":"\/gazette\/?p=73032"},"modified":"2019-04-30T17:43:23","modified_gmt":"2019-04-30T21:43:23","slug":"what-ultra-tiny-nanocircuits-can-do","status":"publish","type":"post","link":"https:\/\/news.harvard.edu\/gazette\/story\/2011\/02\/what-ultra-tiny-nanocircuits-can-do\/","title":{"rendered":"What ultra-tiny nanocircuits can do"},"content":{"rendered":"\n\t
\"\"

The versatile nanoscale circuits are assembled into tiny tilelike nanoprocessors from sets of precisely engineered and fabricated germanium-silicon wires with functional oxide shells, having a total diameter of only 30 nanometers. Shown here are atomic force (left) and optical microscopy (center) images of a programmable nanowire nanoprocessor, and a corresponding schematic (right) of the nanowire circuit architecture. Image courtesy of Charles M. Lieber<\/p>

Photo courtesy of Charles M. Lieber\/SEAS<\/p><\/figcaption><\/figure>\n\n\t

\n\t\t\t\n\t\t\tScience & Tech\t\t<\/a>\n\t\t\n\t\t

\n\t\tWhat ultra-tiny nanocircuits can do\t<\/h1>\n\n\t\n\t\t\t<\/div>\n\t\t\n\t
\n\t\t
\n\t\t\t
\n\t\t\t\t\t

\n\t\tCaroline Perry\t<\/p>\n\t\t\t

\n\t\t\tSEAS Communications\t\t<\/p>\n\t\t\t\t\t<\/address>\n\t\t<\/div>\n\n\t\t

\n\t\t\tHarvard, MITRE researchers produce first programmable nanoprocessor\t\t<\/h2>\n\t\t\n<\/header>\n\n\n\n
\n\n\n\t\t

Engineers and scientists collaborating at Harvard University<\/a> and the MITRE Corp.<\/a> have developed and demonstrated the world\u2019s first programmable nanoprocessor.<\/p>\n

The groundbreaking prototype computer system, described in a paper appearing today (Feb. 9) in the journal Nature<\/a>, represents a significant step forward in the complexity of computer circuits that can be assembled from synthesized nanometer-scale components.<\/p>\n

It also represents an advance because these ultra-tiny nanocircuits can be programmed electronically to perform a number of basic arithmetic and logical functions.<\/p>\n

“This work represents a quantum jump forward in the complexity and function of circuits built from the bottom up, and thus demonstrates that this bottom-up paradigm, which is distinct from the way commercial circuits are built today, can yield nanoprocessors and other integrated systems of the future,\u201d says principal investigator Charles M. Lieber, who holds a joint appointment at Harvard’s Department of Chemistry and Chemical Biology<\/a> and School of Engineering and Applied Sciences<\/a>.<\/p>\n

The work was enabled by advances in the design and synthesis of nanowire building blocks. These nanowire components now demonstrate the reproducibility needed to build functional electronic circuits, and also do so at a size and material complexity difficult to achieve by traditional top-down approaches.<\/p>\n

Moreover, the tiled architecture is fully scalable, allowing the assembly of much larger and ever more functional nanoprocessors.<\/p>\n

\u201cFor the past 10 to 15 years, researchers working with nanowires, carbon nanotubes, and other nanostructures have struggled to build all but the most basic circuits, in large part due to variations in properties of individual nanostructures,\u201d says Lieber, the Mark Hyman Jr. Professor of Chemistry. \u201cWe have shown that this limitation can now be overcome and are excited about prospects of exploiting the bottom-up paradigm of biology in building future electronics.\u201d<\/p>\n

An additional feature of the advance is that the circuits in the nanoprocessor operate using very little power, even allowing for their minuscule size, because their component nanowires contain transistor switches that are \u201cnonvolatile.\u201d<\/p>\n

This means that unlike transistors in conventional microcomputer circuits, once the nanowire transistors are programmed, they do not require any additional expenditure of electrical power for maintaining memory.<\/p>\n

\u201cBecause of their very small size and very low power requirements, these new nanoprocessor circuits are building blocks that can control and enable an entirely new class of much smaller, lighter-weight electronic sensors and consumer electronics,\u201d says co-author Shamik Das, the lead engineer in MITRE\u2019s Nanosystems Group.<\/p>\n

\u201cThis new nanoprocessor represents a major milestone toward realizing the vision of a nanocomputer that was first articulated more than 50 years ago by physicist Richard Feynman,\u201d says James Ellenbogen, a chief scientist at MITRE.<\/p>\n

Co-authors on the paper included four members of Lieber\u2019s lab at Harvard \u2014 Hao Yan, Ph.D. ’10, SungWoo Nam, Ph.D. ’10, Yongjie Hu, Ph.D. ’10 \u2014 and doctoral candidate Hwan Sung Choe, as well as collaborators at MITRE.<\/p>\n

The research team at MITRE comprised Das, Ellenbogen, and nanotechnology laboratory Director Jim Klemic. The MITRE Corp. is a not-for-profit company that provides systems engineering, research and development, and information technology support to the government. MITRE\u2019s principal locations are in Bedford, Mass., and McLean, Va.<\/p>\n

The research was supported by a Department of Defense National Security Science and Engineering Faculty Fellowship, the NanoEnabled Technology Initiative, and the MITRE Innovation Program.<\/p>\n\n\n<\/div>\n\n\t\t","protected":false},"excerpt":{"rendered":"

Engineers and scientists collaborating at Harvard University and the MITRE Corp. have developed and demonstrated the world\u2019s first programmable nanoprocessor.<\/p>\n","protected":false},"author":105622744,"featured_media":73036,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"gz_ga_pageviews":16,"gz_ga_lastupdated":"2022-02-24 01:22","document_color_palette":"crimson","author":"Caroline Perry","affiliation":"SEAS Communications","_category_override":"","_yoast_wpseo_primary_category":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1387],"tags":[7095,7257,7781,10626,13367,16297,20052,24303,24304,24305,24880,24882,24914,30621,31088,34260],"gazette-formats":[],"series":[],"class_list":["post-73032","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-technology","tag-carbon-nanotubes","tag-caroline-perry","tag-charles-m-lieber","tag-department-of-defense-national-security-science-and-engineering-faculty-fellowship","tag-first-programmable-nanoprocessor","tag-harvards-department-of-chemistry-and-chemical-biology","tag-journal-nature","tag-mitre-corp","tag-mitre-innovation-program","tag-mitres-nanosystems-group","tag-nanocircuits","tag-nanoenabled-technology-initiative","tag-nanowires","tag-school-of-engineering-and-applied-sciences","tag-shamik-das","tag-transistor-switches"],"yoast_head":"\nWhat ultra-tiny nanocircuits can do — Harvard Gazette<\/title>\n<meta name=\"description\" content=\"Engineers and scientists collaborating at Harvard University and the MITRE Corp. have developed and demonstrated the world\u2019s first programmable nanoprocessor.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/news.harvard.edu\/gazette\/story\/2011\/02\/what-ultra-tiny-nanocircuits-can-do\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What ultra-tiny nanocircuits can do — Harvard Gazette\" \/>\n<meta property=\"og:description\" content=\"Engineers and scientists collaborating at Harvard University and the MITRE Corp. have developed and demonstrated the world\u2019s first programmable nanoprocessor.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/news.harvard.edu\/gazette\/story\/2011\/02\/what-ultra-tiny-nanocircuits-can-do\/\" \/>\n<meta property=\"og:site_name\" content=\"Harvard Gazette\" \/>\n<meta property=\"article:published_time\" content=\"2011-02-09T20:34:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-04-30T21:43:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/news.harvard.edu\/gazette\/wp-content\/uploads\/2011\/02\/nanoprocessorcomposite2_cml1_605.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"605\" \/>\n\t<meta property=\"og:image:height\" content=\"403\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"harvardgazette\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/news.harvard.edu\/gazette\/story\/2011\/02\/what-ultra-tiny-nanocircuits-can-do\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/news.harvard.edu\/gazette\/story\/2011\/02\/what-ultra-tiny-nanocircuits-can-do\/\"},\"author\":{\"name\":\"harvardgazette\",\"@id\":\"https:\/\/news.harvard.edu\/gazette\/#\/schema\/person\/78d028cf624923e92682268709ffbc4b\"},\"headline\":\"What ultra-tiny nanocircuits can do\",\"datePublished\":\"2011-02-09T20:34:12+00:00\",\"dateModified\":\"2019-04-30T21:43:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/news.harvard.edu\/gazette\/story\/2011\/02\/what-ultra-tiny-nanocircuits-can-do\/\"},\"wordCount\":612,\"publisher\":{\"@id\":\"https:\/\/news.harvard.edu\/gazette\/#organization\"},\"image\":{\"@id\":\"https:\/\/news.harvard.edu\/gazette\/story\/2011\/02\/what-ultra-tiny-nanocircuits-can-do\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/news.harvard.edu\/wp-content\/uploads\/2011\/02\/nanoprocessorcomposite2_cml1_605.jpg\",\"keywords\":[\"Carbon Nanotubes\",\"Caroline Perry\",\"Charles M. 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Lieber","mediaId":73036,"mediaSize":"full","mediaType":"image","mediaUrl":"https:\/\/news.harvard.edu\/gazette\/wp-content\/uploads\/2011\/02\/nanoprocessorcomposite2_cml1_605.jpg","poster":"","title":"What ultra-tiny nanocircuits can do","subheading":"Harvard, MITRE researchers produce first programmable nanoprocessor","centeredImage":true,"className":"is-style-full-width-text-below","mediaHeight":403,"mediaWidth":605,"backgroundFixed":false,"backgroundTone":"light","coloredBackground":false,"displayOverlay":true,"fadeInText":false,"isAmbient":false,"mediaLength":"","mediaPosition":"","posterText":"","titleAbove":false,"useUncroppedImage":false,"lock":[],"metadata":[]},"innerBlocks":[],"innerHTML":"<figure class=\"wp-block-image\"><img alt=\"\" height=\"403\" loading=\"eager\" src=\"https:\/\/news.harvard.edu\/gazette\/wp-content\/uploads\/2011\/02\/nanoprocessorcomposite2_cml1_605.jpg\" width=\"605\"\/><figcaption class=\"wp-element-caption\"><p class=\"wp-element-caption--caption\">The versatile nanoscale circuits are assembled into tiny tilelike nanoprocessors from sets of precisely engineered and fabricated germanium-silicon wires with functional oxide shells, having a total diameter of only 30 nanometers. Shown here are atomic force (left) and optical microscopy (center) images of a programmable nanowire nanoprocessor, and a corresponding schematic (right) of the nanowire circuit architecture. Image courtesy of Charles M. Lieber<\/p><p class=\"wp-element-caption--credit\">Photo courtesy of Charles M. Lieber\/SEAS<\/p><\/figcaption><\/figure>\n","innerContent":["<figure class=\"wp-block-image\"><img alt=\"\" height=\"403\" loading=\"eager\" src=\"https:\/\/news.harvard.edu\/gazette\/wp-content\/uploads\/2011\/02\/nanoprocessorcomposite2_cml1_605.jpg\" width=\"605\"\/><figcaption class=\"wp-element-caption\"><p class=\"wp-element-caption--caption\">The versatile nanoscale circuits are assembled into tiny tilelike nanoprocessors from sets of precisely engineered and fabricated germanium-silicon wires with functional oxide shells, having a total diameter of only 30 nanometers. Shown here are atomic force (left) and optical microscopy (center) images of a programmable nanowire nanoprocessor, and a corresponding schematic (right) of the nanowire circuit architecture. Image courtesy of Charles M. Lieber<\/p><p class=\"wp-element-caption--credit\">Photo courtesy of Charles M. Lieber\/SEAS<\/p><\/figcaption><\/figure>\n"],"rendered":"<header\n\tclass=\"wp-block-harvard-gazette-article-header alignfull article-header is-style-full-width-text-below centered-image\"\n\tstyle=\" \"\n>\n\t<figure class=\"wp-block-image\"><img alt=\"\" height=\"403\" loading=\"eager\" src=\"https:\/\/news.harvard.edu\/gazette\/wp-content\/uploads\/2011\/02\/nanoprocessorcomposite2_cml1_605.jpg\" width=\"605\"\/><figcaption class=\"wp-element-caption\"><p class=\"wp-element-caption--caption\">The versatile nanoscale circuits are assembled into tiny tilelike nanoprocessors from sets of precisely engineered and fabricated germanium-silicon wires with functional oxide shells, having a total diameter of only 30 nanometers. Shown here are atomic force (left) and optical microscopy (center) images of a programmable nanowire nanoprocessor, and a corresponding schematic (right) of the nanowire circuit architecture. Image courtesy of Charles M. Lieber<\/p><p class=\"wp-element-caption--credit\">Photo courtesy of Charles M. Lieber\/SEAS<\/p><\/figcaption><\/figure>\n\n\t<div class=\"article-header__content\">\n\t\t\t<a\n\t\t\tclass=\"article-header__category\"\n\t\t\thref=\"https:\/\/news.harvard.edu\/gazette\/section\/science-technology\/\"\n\t\t>\n\t\t\tScience & Tech\t\t<\/a>\n\t\t\n\t\t<h1 class=\"article-header__title wp-block-heading \">\n\t\tWhat ultra-tiny nanocircuits can do\t<\/h1>\n\n\t\n\t\t\t<\/div>\n\t\t\n\t<div class=\"article-header__meta\">\n\t\t<div class=\"wp-block-post-author\">\n\t\t\t<address class=\"wp-block-post-author__content\">\n\t\t\t\t\t<p class=\"author wp-block-post-author__name\">\n\t\tCaroline Perry\t<\/p>\n\t\t\t<p class=\"wp-block-post-author__byline\">\n\t\t\tSEAS Communications\t\t<\/p>\n\t\t\t\t\t<\/address>\n\t\t<\/div>\n\n\t\t<time class=\"article-header__date\" datetime=\"2011-02-09\">\n\t\t\tFebruary 9, 2011\t\t<\/time>\n\n\t\t<span class=\"article-header__reading-time\">\n\t\t\t4 min read\t\t<\/span>\n\t<\/div>\n\n\t\n\t\t\t<h2 class=\"article-header__subheading wp-block-heading\">\n\t\t\tHarvard, MITRE researchers produce first programmable nanoprocessor\t\t<\/h2>\n\t\t\n<\/header>\n"},"2":{"blockName":"core\/group","attrs":{"templateLock":false,"metadata":{"name":"Article content"},"align":"wide","layout":{"type":"constrained","justifyContent":"center"},"tagName":"div","lock":[],"className":"","style":[],"backgroundColor":"","textColor":"","gradient":"","fontSize":"","fontFamily":"","borderColor":"","ariaLabel":"","anchor":""},"innerBlocks":[{"blockName":"core\/freeform","attrs":{"content":"","lock":[],"metadata":[]},"innerBlocks":[],"innerHTML":"\n\t\t<p>Engineers and scientists collaborating at <a href=\"http:\/\/www.harvard.edu\/\">Harvard University<\/a> and the <a href=\"http:\/\/www.mitre.org\/\">MITRE Corp.<\/a> have developed and demonstrated the world\u2019s first programmable nanoprocessor.<\/p>\n<p>The groundbreaking prototype computer system, described in a paper appearing today (Feb. 9) in the journal <a href=\"http:\/\/www.nature.com\/nature\/index.html\">Nature<\/a>, represents a significant step forward in the complexity of computer circuits that can be assembled from synthesized nanometer-scale components.<\/p>\n<p>It also represents an advance because these ultra-tiny nanocircuits can be programmed electronically to perform a number of basic arithmetic and logical functions.<\/p>\n<p>\"This work represents a quantum jump forward in the complexity and function of circuits built from the bottom up, and thus demonstrates that this bottom-up paradigm, which is distinct from the way commercial circuits are built today, can yield nanoprocessors and other integrated systems of the future,\u201d says principal investigator Charles M. Lieber, who holds a joint appointment at <a href=\"https:\/\/chemistry.harvard.edu\">Harvard's Department of Chemistry and Chemical Biology<\/a> and <a href=\"http:\/\/www.seas.harvard.edu\/\">School of Engineering and Applied Sciences<\/a>.<\/p>\n<p>The work was enabled by advances in the design and synthesis of nanowire building blocks. These nanowire components now demonstrate the reproducibility needed to build functional electronic circuits, and also do so at a size and material complexity difficult to achieve by traditional top-down approaches.<\/p>\n<p>Moreover, the tiled architecture is fully scalable, allowing the assembly of much larger and ever more functional nanoprocessors.<\/p>\n<p>\u201cFor the past 10 to 15 years, researchers working with nanowires, carbon nanotubes, and other nanostructures have struggled to build all but the most basic circuits, in large part due to variations in properties of individual nanostructures,\u201d says Lieber, the Mark Hyman Jr. Professor of Chemistry. \u201cWe have shown that this limitation can now be overcome and are excited about prospects of exploiting the bottom-up paradigm of biology in building future electronics.\u201d<\/p>\n<p>An additional feature of the advance is that the circuits in the nanoprocessor operate using very little power, even allowing for their minuscule size, because their component nanowires contain transistor switches that are \u201cnonvolatile.\u201d<\/p>\n<p>This means that unlike transistors in conventional microcomputer circuits, once the nanowire transistors are programmed, they do not require any additional expenditure of electrical power for maintaining memory.<\/p>\n<p>\u201cBecause of their very small size and very low power requirements, these new nanoprocessor circuits are building blocks that can control and enable an entirely new class of much smaller, lighter-weight electronic sensors and consumer electronics,\u201d says co-author Shamik Das, the lead engineer in MITRE\u2019s Nanosystems Group.<\/p>\n<p>\u201cThis new nanoprocessor represents a major milestone toward realizing the vision of a nanocomputer that was first articulated more than 50 years ago by physicist Richard Feynman,\u201d says James Ellenbogen, a chief scientist at MITRE.<\/p>\n<p>Co-authors on the paper included four members of Lieber\u2019s lab at Harvard \u2014 Hao Yan, Ph.D. '10, SungWoo Nam, Ph.D. '10, Yongjie Hu, Ph.D. '10 \u2014 and doctoral candidate Hwan Sung Choe, as well as collaborators at MITRE.<\/p>\n<p>The research team at MITRE comprised Das, Ellenbogen, and nanotechnology laboratory Director Jim Klemic. The MITRE Corp. is a not-for-profit company that provides systems engineering, research and development, and information technology support to the government. MITRE\u2019s principal locations are in Bedford, Mass., and McLean, Va.<\/p>\n<p>The research was supported by a Department of Defense National Security Science and Engineering Faculty Fellowship, the NanoEnabled Technology Initiative, and the MITRE Innovation Program.<\/p>\n","innerContent":["\n\t\t<p>Engineers and scientists collaborating at <a href=\"http:\/\/www.harvard.edu\/\">Harvard University<\/a> and the <a href=\"http:\/\/www.mitre.org\/\">MITRE Corp.<\/a> have developed and demonstrated the world\u2019s first programmable nanoprocessor.<\/p>\n<p>The groundbreaking prototype computer system, described in a paper appearing today (Feb. 9) in the journal <a href=\"http:\/\/www.nature.com\/nature\/index.html\">Nature<\/a>, represents a significant step forward in the complexity of computer circuits that can be assembled from synthesized nanometer-scale components.<\/p>\n<p>It also represents an advance because these ultra-tiny nanocircuits can be programmed electronically to perform a number of basic arithmetic and logical functions.<\/p>\n<p>\"This work represents a quantum jump forward in the complexity and function of circuits built from the bottom up, and thus demonstrates that this bottom-up paradigm, which is distinct from the way commercial circuits are built today, can yield nanoprocessors and other integrated systems of the future,\u201d says principal investigator Charles M. Lieber, who holds a joint appointment at <a href=\"https:\/\/chemistry.harvard.edu\">Harvard's Department of Chemistry and Chemical Biology<\/a> and <a href=\"http:\/\/www.seas.harvard.edu\/\">School of Engineering and Applied Sciences<\/a>.<\/p>\n<p>The work was enabled by advances in the design and synthesis of nanowire building blocks. These nanowire components now demonstrate the reproducibility needed to build functional electronic circuits, and also do so at a size and material complexity difficult to achieve by traditional top-down approaches.<\/p>\n<p>Moreover, the tiled architecture is fully scalable, allowing the assembly of much larger and ever more functional nanoprocessors.<\/p>\n<p>\u201cFor the past 10 to 15 years, researchers working with nanowires, carbon nanotubes, and other nanostructures have struggled to build all but the most basic circuits, in large part due to variations in properties of individual nanostructures,\u201d says Lieber, the Mark Hyman Jr. Professor of Chemistry. \u201cWe have shown that this limitation can now be overcome and are excited about prospects of exploiting the bottom-up paradigm of biology in building future electronics.\u201d<\/p>\n<p>An additional feature of the advance is that the circuits in the nanoprocessor operate using very little power, even allowing for their minuscule size, because their component nanowires contain transistor switches that are \u201cnonvolatile.\u201d<\/p>\n<p>This means that unlike transistors in conventional microcomputer circuits, once the nanowire transistors are programmed, they do not require any additional expenditure of electrical power for maintaining memory.<\/p>\n<p>\u201cBecause of their very small size and very low power requirements, these new nanoprocessor circuits are building blocks that can control and enable an entirely new class of much smaller, lighter-weight electronic sensors and consumer electronics,\u201d says co-author Shamik Das, the lead engineer in MITRE\u2019s Nanosystems Group.<\/p>\n<p>\u201cThis new nanoprocessor represents a major milestone toward realizing the vision of a nanocomputer that was first articulated more than 50 years ago by physicist Richard Feynman,\u201d says James Ellenbogen, a chief scientist at MITRE.<\/p>\n<p>Co-authors on the paper included four members of Lieber\u2019s lab at Harvard \u2014 Hao Yan, Ph.D. '10, SungWoo Nam, Ph.D. '10, Yongjie Hu, Ph.D. '10 \u2014 and doctoral candidate Hwan Sung Choe, as well as collaborators at MITRE.<\/p>\n<p>The research team at MITRE comprised Das, Ellenbogen, and nanotechnology laboratory Director Jim Klemic. The MITRE Corp. is a not-for-profit company that provides systems engineering, research and development, and information technology support to the government. MITRE\u2019s principal locations are in Bedford, Mass., and McLean, Va.<\/p>\n<p>The research was supported by a Department of Defense National Security Science and Engineering Faculty Fellowship, the NanoEnabled Technology Initiative, and the MITRE Innovation Program.<\/p>\n"],"rendered":"\n\t\t<p>Engineers and scientists collaborating at <a href=\"http:\/\/www.harvard.edu\/\">Harvard University<\/a> and the <a href=\"http:\/\/www.mitre.org\/\">MITRE Corp.<\/a> have developed and demonstrated the world\u2019s first programmable nanoprocessor.<\/p>\n<p>The groundbreaking prototype computer system, described in a paper appearing today (Feb. 9) in the journal <a href=\"http:\/\/www.nature.com\/nature\/index.html\">Nature<\/a>, represents a significant step forward in the complexity of computer circuits that can be assembled from synthesized nanometer-scale components.<\/p>\n<p>It also represents an advance because these ultra-tiny nanocircuits can be programmed electronically to perform a number of basic arithmetic and logical functions.<\/p>\n<p>\"This work represents a quantum jump forward in the complexity and function of circuits built from the bottom up, and thus demonstrates that this bottom-up paradigm, which is distinct from the way commercial circuits are built today, can yield nanoprocessors and other integrated systems of the future,\u201d says principal investigator Charles M. Lieber, who holds a joint appointment at <a href=\"https:\/\/chemistry.harvard.edu\">Harvard's Department of Chemistry and Chemical Biology<\/a> and <a href=\"http:\/\/www.seas.harvard.edu\/\">School of Engineering and Applied Sciences<\/a>.<\/p>\n<p>The work was enabled by advances in the design and synthesis of nanowire building blocks. These nanowire components now demonstrate the reproducibility needed to build functional electronic circuits, and also do so at a size and material complexity difficult to achieve by traditional top-down approaches.<\/p>\n<p>Moreover, the tiled architecture is fully scalable, allowing the assembly of much larger and ever more functional nanoprocessors.<\/p>\n<p>\u201cFor the past 10 to 15 years, researchers working with nanowires, carbon nanotubes, and other nanostructures have struggled to build all but the most basic circuits, in large part due to variations in properties of individual nanostructures,\u201d says Lieber, the Mark Hyman Jr. Professor of Chemistry. \u201cWe have shown that this limitation can now be overcome and are excited about prospects of exploiting the bottom-up paradigm of biology in building future electronics.\u201d<\/p>\n<p>An additional feature of the advance is that the circuits in the nanoprocessor operate using very little power, even allowing for their minuscule size, because their component nanowires contain transistor switches that are \u201cnonvolatile.\u201d<\/p>\n<p>This means that unlike transistors in conventional microcomputer circuits, once the nanowire transistors are programmed, they do not require any additional expenditure of electrical power for maintaining memory.<\/p>\n<p>\u201cBecause of their very small size and very low power requirements, these new nanoprocessor circuits are building blocks that can control and enable an entirely new class of much smaller, lighter-weight electronic sensors and consumer electronics,\u201d says co-author Shamik Das, the lead engineer in MITRE\u2019s Nanosystems Group.<\/p>\n<p>\u201cThis new nanoprocessor represents a major milestone toward realizing the vision of a nanocomputer that was first articulated more than 50 years ago by physicist Richard Feynman,\u201d says James Ellenbogen, a chief scientist at MITRE.<\/p>\n<p>Co-authors on the paper included four members of Lieber\u2019s lab at Harvard \u2014 Hao Yan, Ph.D. '10, SungWoo Nam, Ph.D. '10, Yongjie Hu, Ph.D. '10 \u2014 and doctoral candidate Hwan Sung Choe, as well as collaborators at MITRE.<\/p>\n<p>The research team at MITRE comprised Das, Ellenbogen, and nanotechnology laboratory Director Jim Klemic. The MITRE Corp. is a not-for-profit company that provides systems engineering, research and development, and information technology support to the government. MITRE\u2019s principal locations are in Bedford, Mass., and McLean, Va.<\/p>\n<p>The research was supported by a Department of Defense National Security Science and Engineering Faculty Fellowship, the NanoEnabled Technology Initiative, and the MITRE Innovation Program.<\/p>\n"}],"innerHTML":"\n<div class=\"wp-block-group alignwide\">\n\n\n\n<\/div>\n","innerContent":["\n<div class=\"wp-block-group alignwide\">\n\n","\n\n<\/div>\n"],"rendered":"\n<div class=\"wp-block-group alignwide has-global-padding is-content-justification-center is-layout-constrained wp-block-group-is-layout-constrained\">\n\n\n\t\t<p>Engineers and scientists collaborating at <a href=\"http:\/\/www.harvard.edu\/\">Harvard University<\/a> and the <a href=\"http:\/\/www.mitre.org\/\">MITRE Corp.<\/a> have developed and demonstrated the world\u2019s first programmable nanoprocessor.<\/p>\n<p>The groundbreaking prototype computer system, described in a paper appearing today (Feb. 9) in the journal <a href=\"http:\/\/www.nature.com\/nature\/index.html\">Nature<\/a>, represents a significant step forward in the complexity of computer circuits that can be assembled from synthesized nanometer-scale components.<\/p>\n<p>It also represents an advance because these ultra-tiny nanocircuits can be programmed electronically to perform a number of basic arithmetic and logical functions.<\/p>\n<p>\"This work represents a quantum jump forward in the complexity and function of circuits built from the bottom up, and thus demonstrates that this bottom-up paradigm, which is distinct from the way commercial circuits are built today, can yield nanoprocessors and other integrated systems of the future,\u201d says principal investigator Charles M. Lieber, who holds a joint appointment at <a href=\"https:\/\/chemistry.harvard.edu\">Harvard's Department of Chemistry and Chemical Biology<\/a> and <a href=\"http:\/\/www.seas.harvard.edu\/\">School of Engineering and Applied Sciences<\/a>.<\/p>\n<p>The work was enabled by advances in the design and synthesis of nanowire building blocks. These nanowire components now demonstrate the reproducibility needed to build functional electronic circuits, and also do so at a size and material complexity difficult to achieve by traditional top-down approaches.<\/p>\n<p>Moreover, the tiled architecture is fully scalable, allowing the assembly of much larger and ever more functional nanoprocessors.<\/p>\n<p>\u201cFor the past 10 to 15 years, researchers working with nanowires, carbon nanotubes, and other nanostructures have struggled to build all but the most basic circuits, in large part due to variations in properties of individual nanostructures,\u201d says Lieber, the Mark Hyman Jr. Professor of Chemistry. \u201cWe have shown that this limitation can now be overcome and are excited about prospects of exploiting the bottom-up paradigm of biology in building future electronics.\u201d<\/p>\n<p>An additional feature of the advance is that the circuits in the nanoprocessor operate using very little power, even allowing for their minuscule size, because their component nanowires contain transistor switches that are \u201cnonvolatile.\u201d<\/p>\n<p>This means that unlike transistors in conventional microcomputer circuits, once the nanowire transistors are programmed, they do not require any additional expenditure of electrical power for maintaining memory.<\/p>\n<p>\u201cBecause of their very small size and very low power requirements, these new nanoprocessor circuits are building blocks that can control and enable an entirely new class of much smaller, lighter-weight electronic sensors and consumer electronics,\u201d says co-author Shamik Das, the lead engineer in MITRE\u2019s Nanosystems Group.<\/p>\n<p>\u201cThis new nanoprocessor represents a major milestone toward realizing the vision of a nanocomputer that was first articulated more than 50 years ago by physicist Richard Feynman,\u201d says James Ellenbogen, a chief scientist at MITRE.<\/p>\n<p>Co-authors on the paper included four members of Lieber\u2019s lab at Harvard \u2014 Hao Yan, Ph.D. '10, SungWoo Nam, Ph.D. '10, Yongjie Hu, Ph.D. '10 \u2014 and doctoral candidate Hwan Sung Choe, as well as collaborators at MITRE.<\/p>\n<p>The research team at MITRE comprised Das, Ellenbogen, and nanotechnology laboratory Director Jim Klemic. The MITRE Corp. is a not-for-profit company that provides systems engineering, research and development, and information technology support to the government. MITRE\u2019s principal locations are in Bedford, Mass., and McLean, Va.<\/p>\n<p>The research was supported by a Department of Defense National Security Science and Engineering Faculty Fellowship, the NanoEnabled Technology Initiative, and the MITRE Innovation Program.<\/p>\n\n\n<\/div>\n"}},"jetpack-related-posts":[{"id":61743,"url":"https:\/\/news.harvard.edu\/gazette\/story\/2009\/10\/harvard-scientists-bend-nanowires-into-2-d-and-3-d-structures\/","url_meta":{"origin":73032,"position":0},"title":"Harvard scientists bend nanowires into 2-D and 3-D structures","author":"harvardgazette","date":"October 21, 2009","format":false,"excerpt":"Taking nanomaterials to a new level of structural complexity, Harvard researchers have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional structures with correspondingly advanced functions. The work is described this week in in a letter in the journal Nature Nanotechnology by scientists led\u2026","rel":"","context":"In "Science & Tech"","block_context":{"text":"Science & Tech","link":"https:\/\/news.harvard.edu\/gazette\/section\/science-technology\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":92817,"url":"https:\/\/news.harvard.edu\/gazette\/story\/2011\/10\/first-programmable-computer\/","url_meta":{"origin":73032,"position":1},"title":"First Programmable Computer","author":"harvardgazette","date":"October 12, 2011","format":false,"excerpt":"Michael D. Smith Dean, Faculty of Arts and Sciences John H. Finley Jr. Professor of Engineering and Applied Sciences, SEAS","rel":"","context":"In "Science & Tech"","block_context":{"text":"Science & Tech","link":"https:\/\/news.harvard.edu\/gazette\/section\/science-technology\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":50209,"url":"https:\/\/news.harvard.edu\/gazette\/story\/2010\/06\/a-marriage-of-origami-and-robotics\/","url_meta":{"origin":73032,"position":2},"title":"A marriage of origami and robotics","author":"harvardgazette","date":"June 28, 2010","format":false,"excerpt":"A Harvard and MIT research team demonstrates how a single thin sheet composed of interconnected triangular sections can transform itself into another shape, without the help of skilled fingers, in a kind of origami robotics.","rel":"","context":"In "Science & Tech"","block_context":{"text":"Science & Tech","link":"https:\/\/news.harvard.edu\/gazette\/section\/science-technology\/"},"img":{"alt_text":"","src":"https:\/\/news.harvard.edu\/wp-content\/uploads\/2010\/06\/crease-patterns-650.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/news.harvard.edu\/wp-content\/uploads\/2010\/06\/crease-patterns-650.jpg?resize=350%2C200 1x, https:\/\/news.harvard.edu\/wp-content\/uploads\/2010\/06\/crease-patterns-650.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":61994,"url":"https:\/\/news.harvard.edu\/gazette\/story\/2010\/06\/shape-shifting-sheets-automatically-fold-into-multiple-shapes\/","url_meta":{"origin":73032,"position":3},"title":"Shape-shifting sheets automatically fold into multiple shapes","author":"harvardgazette","date":"June 28, 2010","format":false,"excerpt":"\u201cMore than meets the eye\u201d may soon become more than just for the Transformer line of popular robotic toys. Researchers at Harvard and MIT have reshaped the landscape of programmable matter by devising self-folding sheets that rely on the ancient art of origami. Click here to watch a video of\u2026","rel":"","context":"In "Science & Tech"","block_context":{"text":"Science & Tech","link":"https:\/\/news.harvard.edu\/gazette\/section\/science-technology\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":27624,"url":"https:\/\/news.harvard.edu\/gazette\/story\/2009\/10\/nanowires-go-2-d-3-d\/","url_meta":{"origin":73032,"position":4},"title":"Nanowires go 2-D, 3-D","author":"harvardgazette","date":"October 22, 2009","format":false,"excerpt":"Taking nanomaterials to a new level of structural complexity, scientists have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional structures with correspondingly advanced functions.","rel":"","context":"In "Health"","block_context":{"text":"Health","link":"https:\/\/news.harvard.edu\/gazette\/section\/health\/"},"img":{"alt_text":"","src":"https:\/\/news.harvard.edu\/wp-content\/uploads\/2009\/10\/lieber_kinkednanowire21.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/news.harvard.edu\/wp-content\/uploads\/2009\/10\/lieber_kinkednanowire21.jpg?resize=350%2C200 1x, https:\/\/news.harvard.edu\/wp-content\/uploads\/2009\/10\/lieber_kinkednanowire21.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":185373,"url":"https:\/\/news.harvard.edu\/gazette\/story\/2016\/07\/microscopy-taps-power-of-programmable-dna\/","url_meta":{"origin":73032,"position":5},"title":"Microscopy taps power of programmable DNA","author":"harvardgazette","date":"July 6, 2016","format":false,"excerpt":"With a super-resolution microscopy, a team of researchers at Harvard\u2019s Wyss Institute has leveraged the power of programmable DNA.","rel":"","context":"In "Science & Tech"","block_context":{"text":"Science & Tech","link":"https:\/\/news.harvard.edu\/gazette\/section\/science-technology\/"},"img":{"alt_text":"","src":"https:\/\/news.harvard.edu\/wp-content\/uploads\/2016\/07\/wyss_dmi-figure-1_605.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/news.harvard.edu\/wp-content\/uploads\/2016\/07\/wyss_dmi-figure-1_605.jpg?resize=350%2C200 1x, https:\/\/news.harvard.edu\/wp-content\/uploads\/2016\/07\/wyss_dmi-figure-1_605.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/posts\/73032","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/users\/105622744"}],"replies":[{"embeddable":true,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/comments?post=73032"}],"version-history":[{"count":1,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/posts\/73032\/revisions"}],"predecessor-version":[{"id":273416,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/posts\/73032\/revisions\/273416"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/media\/73036"}],"wp:attachment":[{"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/media?parent=73032"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/categories?post=73032"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/tags?post=73032"},{"taxonomy":"format","embeddable":true,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/gazette-formats?post=73032"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/news.harvard.edu\/gazette\/wp-json\/wp\/v2\/series?post=73032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}