{"id":206924,"date":"2025-04-17T09:29:52","date_gmt":"2025-04-17T09:29:52","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=206924"},"modified":"2025-04-17T09:29:54","modified_gmt":"2025-04-17T09:29:54","slug":"in-1996-ibm-scientists-started-positioning-individual-molecules-at-room-temperature-based-on","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/17\/in-1996-ibm-scientists-started-positioning-individual-molecules-at-room-temperature-based-on\/","title":{"rendered":"In 1996, IBM scientists started positioning individual molecules at room temperature based on"},"content":{"rendered":"\n

In 1996, IBM scientists started positioning individual molecules at room temperature based on:<\/p>\n\n\n\n

Atomic Force Microscope
Scanning Tunneling Microscope
Transmission Electron Microscope
Scanning Electron Microscope<\/p>\n\n\n\n

The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n

Correct Answer:<\/strong> Atomic Force Microscope<\/em><\/p>\n\n\n\n

Explanation (300 words):<\/h3>\n\n\n\n

In 1996, IBM scientists made a groundbreaking advancement in nanotechnology by manipulating individual molecules at room temperature using the Atomic Force Microscope (AFM)<\/strong>. This technique marked a significant milestone in the ability to control matter at the atomic and molecular level, paving the way for innovations in nanoscience and molecular engineering.<\/p>\n\n\n\n

The Atomic Force Microscope works by using a sharp tip\u2014only a few nanometers wide\u2014attached to a cantilever. As the tip is brought close to the surface of a sample, it experiences atomic forces (like van der Waals forces) from the atoms on the surface. These interactions cause deflections in the cantilever, which are measured using a laser beam reflected off the top of the cantilever. These measurements allow the AFM to produce incredibly detailed images of surfaces at the atomic scale.<\/p>\n\n\n\n

What sets the AFM apart, especially in IBM\u2019s work, is its ability not just to image<\/em> atoms but also to manipulate<\/em> them. In 1996, IBM scientists demonstrated the positioning of individual molecules at room temperature<\/strong>, which was revolutionary because earlier techniques required extremely low (cryogenic) temperatures to maintain stability. This room-temperature operation opened up practical applications for nanotechnology in real-world environments.<\/p>\n\n\n\n

AFM\u2019s precision is so high that researchers can push, pull, or even pick up single atoms and molecules and move them to a desired location. This is crucial in fields like molecular electronics, materials science, and biotechnology, where designing matter from the bottom up (atom by atom) is the ultimate goal.<\/p>\n\n\n\n

In contrast, other microscopes like the Scanning Tunneling Microscope (STM)<\/strong> are also capable of atomic manipulation, but they typically require ultra-low temperatures and conductive samples, limiting their practical use. AFM, with its versatility and capability at room temperature, was key to IBM’s 1996 breakthrough.<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

In 1996, IBM scientists started positioning individual molecules at room temperature based on: Atomic Force MicroscopeScanning Tunneling MicroscopeTransmission Electron MicroscopeScanning Electron Microscope The correct answer and explanation is : Correct Answer: Atomic Force Microscope Explanation (300 words): In 1996, IBM scientists made a groundbreaking advancement in nanotechnology by manipulating individual molecules at room temperature using […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-206924","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/206924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=206924"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/206924\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=206924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=206924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=206924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}