{"id":1322,"date":"2024-02-17T18:19:10","date_gmt":"2024-02-17T12:49:10","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=1322"},"modified":"2024-04-03T07:16:21","modified_gmt":"2024-04-03T01:46:21","slug":"q-with-reference-to-carbon-nanotubes-consider-the-following-statements","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/q-with-reference-to-carbon-nanotubes-consider-the-following-statements","title":{"rendered":"Q.\u00a0With reference to carbon nanotubes, consider the following statements:"},"content":{"rendered":"\n<ol class=\"wp-block-list\">\n<li>They can be used as carriers of drugs and antigens in the human body.<\/li>\n\n\n\n<li>They can be made into artificial blood capillaries for an injured part of the human body.<\/li>\n\n\n\n<li>They can be used in biochemical sensors.<\/li>\n\n\n\n<li>Carbon nanotubes are biodegradable.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Which of the statements given above are correct?<\/strong><\/p>\n\n\n\n<ul class=\"mcq wp-block-list\">\n<li>1 and 2 only<\/li>\n\n\n\n<li>2, 3 and 4 only<\/li>\n\n\n\n<li>1, 3 and 4 only<\/li>\n\n\n\n<li>1, 2, 3 and 4<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Answer: (d) 1, 2, 3 and 4<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"carbon-nanotubes\">Carbon nanotubes<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A carbon nanotube (CNT) is a tube&nbsp;<strong>made of carbon with a diameter in the nanometer range<\/strong>&nbsp;(nanoscale). They are one of the&nbsp;<strong>allotropes of carbon.<\/strong><\/li>\n\n\n\n<li>Carbon nanotubes are&nbsp;<strong>cylindrical large molecules consisting of a hexagonal arrangement of hybridized carbon atoms<\/strong>, which may by formed by rolling up a single sheet of graphene (single-walled carbon nanotubes, SWCNTs) or by rolling up multiple sheets of graphene (multiwalled carbon nanotubes, MWCNTs).\n<ul class=\"wp-block-list\">\n<li>Hence structurally, carbon nanotubes (CNTs) can be viewed as wrapped from&nbsp;<strong>graphene sheets.<\/strong><\/li>\n\n\n\n<li>Carbon nanotubes were once considered to be resistant to chemical damage due to their rigid and perfect chemical structure, which rendered them immune to biodegradation. However,&nbsp;<strong>enzymes like peroxidase were found to play an important role in the process of biodegradation of carbon nanotubes<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Carbon nanotubes can exhibit remarkable properties, such as&nbsp;<strong>exceptional tensile strength and thermal conductivity<\/strong>&nbsp;because of their nanostructure and strength of the bonds between carbon atoms.<\/li>\n\n\n\n<li>Carbon nanotubes are<strong>&nbsp;extremely robust and difficult to break, but they are still light<\/strong>. Because of their exceptional mechanical, electrical, and thermal properties, carbon nanotubes are one of the&nbsp;<strong>most investigated nanomaterials.<\/strong><\/li>\n\n\n\n<li><strong>Carbon Nanotubes Uses &amp; Applications<\/strong>\n<ul class=\"wp-block-list\">\n<li>Carbon nanotubes are utilized in energy storage, device modelling, automotive parts, boat hulls, sporting goods, water filters, thin-film electronics, coatings, actuators, and electromagnetic shields.<\/li>\n\n\n\n<li>Because of their large surface area, CNTs have been successfully used in pharmacy and medicine to adsorb or conjugate a wide range of medicinal and diagnostic substances.<\/li>\n\n\n\n<li>CNTs have a number of unique chemical, size, optical, electrical, and structural properties that make them appealing as drug delivery and biosensing platforms for the treatment of a variety of diseases and noninvasive monitoring of blood levels and other chemical properties of the human body, respectively.<\/li>\n\n\n\n<li>Carbon nanotubes (CNTs) have unique qualities, such as high surface-to-volume ratios, increased conductivity and strength, biocompatibility, ease of functionalization, optical properties, and so on.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lotusarise.com\/wp-content\/uploads\/2023\/12\/Carbon-nanotubes.png\" alt=\"Carbon nanotubes\" class=\"wp-image-47415\" title=\"\"><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which of the statements given above are correct? Answer: (d) 1, 2, 3 and 4 Carbon nanotubes<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1,3],"tags":[44],"years":[53],"class_list":["post-1322","post","type-post","status-publish","format-standard","hentry","category-upsc","category-prelims","tag-science-and-tech","years-53"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"UPSC"},{"value":3,"label":"Prelims"}],"post_tag":[{"value":44,"label":"Science and Tech"}],"years":[{"value":53,"label":"2020"}]},"featured_image_src_large":false,"author_info":{"display_name":"LotusArise","author_link":"https:\/\/lotusarise.com\/qna\/author\/team-lotusarise"},"comment_info":0,"category_info":[{"term_id":1,"name":"UPSC","slug":"upsc","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":1269,"filter":"raw","cat_ID":1,"category_count":1269,"category_description":"","cat_name":"UPSC","category_nicename":"upsc","category_parent":0},{"term_id":3,"name":"Prelims","slug":"prelims","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":1,"count":1251,"filter":"raw","cat_ID":3,"category_count":1251,"category_description":"","cat_name":"Prelims","category_nicename":"prelims","category_parent":1}],"tag_info":[{"term_id":44,"name":"Science and Tech","slug":"science-and-tech","term_group":0,"term_taxonomy_id":44,"taxonomy":"post_tag","description":"","parent":0,"count":167,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/comments?post=1322"}],"version-history":[{"count":2,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1322\/revisions"}],"predecessor-version":[{"id":1348,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1322\/revisions\/1348"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=1322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=1322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=1322"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=1322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}