{"id":111585,"date":"2022-07-01T07:17:00","date_gmt":"2022-07-01T05:17:00","guid":{"rendered":"https:\/\/renewable-carbon.eu\/news\/?p=111585"},"modified":"2022-06-29T13:19:53","modified_gmt":"2022-06-29T11:19:53","slug":"a-biological-super-glue-from-mistletoe-berries","status":"publish","type":"post","link":"https:\/\/renewable-carbon.eu\/news\/a-biological-super-glue-from-mistletoe-berries\/","title":{"rendered":"A biological super glue from mistletoe berries?"},"content":{"rendered":"\n\n\n
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Close up of mistletoe berries containing sticky seeds \u00a9 McGill University<\/figcaption><\/figure><\/div>\n\n\n\n

Each mistletoe berry can produce up to two metres of a gluey thread called viscin. It allows the seeds of this parasitic plant to stick to and infect host plants. Since ancient times, mistletoe berries have been explored as treatments for everything from infertility and epilepsy to cancer. But, until now, no one has fully investigated the potential medical or technical uses of the glue itself. A recent paper from McGill University and the Max Planck Institute of Colloids and Interfaces, published in\u00a0PNAS Nexus<\/em><\/a>, suggests that through simple processing, viscin\u2019s ultra-stiff flexible fibres, which adhere to both skin and cartilage as well as to various synthetic materials, could have a range of applications \u2013 both biomedical and beyond.<\/strong><\/p>\n\n\n\n

It is a discovery that came about almost by chance \u2013 sparked by the actions of a young girl. \u201cI had never seen mistletoe before living in Germany,\u201d said Matthew Harrington<\/a>, a senior author on the paper, and an associate professor in the Department of Chemistry at McGill University, and the Tier 2 Canada Research Chair in Green Chemistry. \u201cSo, when my daughter was playing with a berry from a mistletoe we bought from a local Christmas market, and it started sticking to everything, I was intrigued.\u201d This is understandable since Harrington\u2019s research focuses on exploring materials and adhesives found in nature and adapting the underlying principles for the development of advanced bio-inspired materials.<\/p>\n\n\n\n

A plant with very unusual qualities<\/strong><\/h3>\n\n\n\n

The researchers discovered that through simple processing when wet, viscin fibres, which stick to themselves as well as to other materials, could be stretched into thin films or assembled into 3D structures. They believe that this means viscin could potentially be used as a wound sealant or skin covering. What makes the flexible viscin fibres so interesting as a material is that their ability to stick to things is fully reversible under humid conditions.<\/p>\n\n\n\n

\u201cI wore a thin film of viscin on my skin for three days to observe its adhesive qualities and was able to remove it from my fingers afterwards by simply rubbing them together,\u201d said Nils Horbelt<\/strong>, a recently graduated PhD student at the Max Planck Institut<\/strong>e, and the first author on the paper, who, according to Harrington, brought the creativity and patience of a carpenter (his former profession) to the research. \u201cBut there still remain many questions about this very unusual material.\u201d<\/p><\/blockquote>\n\n\n\n

The researchers\u2019 next goals are to gain a better understanding of the chemistry behind this swellable, extremely sticky material so that they can then replicate the process.<\/p>\n\n\n\n

\u201cThe fact that viscin can adhere to both wood and skin or feathers, may be relevant evolutionarily speaking,\u201d adds Harrington<\/strong>. \u201cBut it\u2019s harder to explain adherence to various synthetic surfaces, such as plastics, glass and metal alloys, from an adaptive point of view. So viscin may simply represent a highly versatile adhesion chemistry, which is what makes it so interesting to explore what is going on chemically.\u201d<\/p><\/blockquote>\n\n\n\n

Given the excellent properties of mistletoe viscin and the fact that mistletoe plants are abundant, and both biodegradable and biorenewable, these findings suggest that this remarkable plant might provide more than holiday ornamentation in the future.<\/p>\n\n\n\n

About this study<\/strong><\/h3>\n\n\n\n

Horbelt, N., Fratzl, P. and Harrington, M.J. Mistletoe viscin: A hygro- and mechano-responsive cellulose-based adhesive for diverse materials applications. (2022) PNAS Nexus. 1, pgac026.DOI: 10.1093\/pnasnexus\/pgac026.<\/p>\n\n\n\n

About McGill University<\/h3>\n\n\n\n

Founded in Montreal, Quebec, in 1821, McGill University is Canada\u2019s top ranked medical doctoral university. McGill is consistently ranked as one of the top universities, both nationally and internationally. It is a world-renowned institution of higher learning with research activities spanning three campuses, 11 faculties, 13 professional schools, 300 programs of study and over 39,000 students, including more than 10,400 graduate students. McGill attracts students from over 150 countries around the world, its 12,000 international students making up 30% of the student body. Over half of McGill students claim a first language other than English, including approximately 20% of our students who say French is their mother tongue.<\/p>\n","protected":false},"excerpt":{"rendered":"

Each mistletoe berry can produce up to two metres of a gluey thread called viscin. It allows the seeds of this parasitic plant to stick to and infect host plants. Since ancient times, mistletoe berries have been explored as treatments for everything from infertility and epilepsy to cancer. But, until now, no one has fully […]<\/p>\n","protected":false},"author":105,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","nova_meta_subtitle":"Abundant, biodegradable and bio renewable plant holds promising possibilities","footnotes":""},"categories":[5572],"tags":[10503,5838,6162,12510,13988],"supplier":[19407,3805],"class_list":["post-111585","post","type-post","status-publish","format-standard","hentry","category-bio-based","tag-biodegradable","tag-bioeconomy","tag-cellulose","tag-glue","tag-greenchemistr","supplier-max-planck-institute-of-colloids-and-interfaces","supplier-mcgill-university-in-montreal"],"_links":{"self":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/111585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/users\/105"}],"replies":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/comments?post=111585"}],"version-history":[{"count":0,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/111585\/revisions"}],"wp:attachment":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media?parent=111585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/categories?post=111585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/tags?post=111585"},{"taxonomy":"supplier","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/supplier?post=111585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}