くっついたら剥がれない!?自然界の超強力接着剤

『接着剤』と言うと、皆さんはいったいどんなものを思い浮かべるか? 糊やボンドなど色々なものがあるが、このような人工のもの以外に、自然界にも接着剤は存在する。川の岩場や水道管の中などに住んでいるカウロバクタークレセンタスという細菌は、尾のように伸びた体の部分にとても強力な接着部を持っている。この接着部は水中でも接着することが可能で、現在最も強力と言われているアクリル系接着剤の2倍以上の接着力を持っている。なんと、1cm2あたり680kgほど、10円玉ほどの面積があれば車を４台も吊るせるほどの接着力である。また人体に対する毒性がないという特徴も持っている。

防御・安定:: 接着

省資源

PNAS vol.103, April 11,2006, pp 5764-5768

従来の接着剤よりも強力なものをつくることができ、また、水中でも使用することができるので様々な用途で使用することができる。さらに、生体に無毒なため、外科手術の際など傷を塞ぐときに活用することができるかもしれない。

Query	Affected	Num. rows	Took (ms)	Actions
SHOW FULL COLUMNS FROM `contents`	16	16	1	maybe slow
SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= 'utf8_general_ci';	1	1	0
SHOW FULL COLUMNS FROM `users`	10	10	2	maybe slow
SHOW FULL COLUMNS FROM `groups`	4	4	2	maybe slow
SHOW FULL COLUMNS FROM `permissions`	5	5	3	maybe slow
SHOW FULL COLUMNS FROM `groups_permissions`	3	3	5	maybe slow
SHOW FULL COLUMNS FROM `groups_users`	3	3	1	maybe slow
SHOW FULL COLUMNS FROM `contents_searches`	6	6	3	maybe slow
SHOW FULL COLUMNS FROM `attachments`	11	11	0
SHOW FULL COLUMNS FROM `attachments_revs`	13	13	6	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items`	5	5	3	maybe slow
SHOW FULL COLUMNS FROM `related_items`	6	6	1	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items_revs`	8	8	1	maybe slow
SHOW FULL COLUMNS FROM `contents_tags`	5	5	5
SHOW FULL COLUMNS FROM `tags`	7	7	3	maybe slow
SHOW FULL COLUMNS FROM `tag_groups`	6	6	3	maybe slow
SHOW FULL COLUMNS FROM `contents_tags_revs`	7	7	3	maybe slow
SHOW FULL COLUMNS FROM `contents_revs`	18	18	3	maybe slow
SELECT `Content`.`id`, `Content`.`user_id`, `Content`.`last_edit_user_id`, `Content`.`post_date`, `Content`.`post_date_year`, `Content`.`post_date_month`, `Content`.`post_date_day`, `Content`.`title`, `Content`.`title_en`, `Content`.`content`, `Content`.`plain_content`, `Content`.`page_view`, `Content`.`flag`, `Content`.`mod_count`, `Content`.`created`, `Content`.`modified` FROM `contents` AS `Content` WHERE `id` = 180 LIMIT 1	1	1	3	maybe slow
SELECT `Attachment`.`file_name`, `Attachment`.`dir`, `Attachment`.`model`, `Attachment`.`foreign_key` FROM `attachments` AS `Attachment` WHERE `file_name` <> 'default.jpg' AND `Attachment`.`foreign_key` = (180)	2	2	0
SELECT `ContentsRelatedItem`.`content`, `ContentsRelatedItem`.`related_item_id`, `ContentsRelatedItem`.`content_id` FROM `contents_related_items` AS `ContentsRelatedItem` WHERE `ContentsRelatedItem`.`content_id` = (180)	10	10	2	maybe slow
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 1	1	1	1
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 2	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 4	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 6	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 7	1	1	1
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 8	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	4	maybe slow
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 11	1	1	0
SELECT `ContentsTag`.`id`, `ContentsTag`.`tag_group_id`, `ContentsTag`.`mod_count`, `ContentsTag`.`tag_id`, `ContentsTag`.`content_id` FROM `contents_tags` AS `ContentsTag` WHERE `ContentsTag`.`content_id` = (180)	2	2	1	maybe slow
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 64	1	1	1
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 6	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 98	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 7	1	1	1
SELECT `RelatedItem`.`id`, `RelatedItem`.`code`, `RelatedItem`.`name`, `RelatedItem`.`created`, `RelatedItem`.`modified`, `RelatedItem`.`flag` FROM `related_items` AS `RelatedItem` WHERE `code` = 'function' LIMIT 1	1	1	1
SELECT `Content`.`id`, `Content`.`title`, `Content`.`title_en` FROM `contents` AS `Content` WHERE id = (NULL) ORDER BY `id` desc	0	0	5	maybe slow

Message	Memory use
Component intitailization	6.79 MB
Controller action start	6.83 MB
Controller render start	6.90 MB
View render complete	7.92 MB

Message	Time in ms	Graph
Core Processing (Derived)	203.25
Component initialization and startup	14.04
Controller action	38.37
Render Controller Action	83.72
» Rendering View	81.55
» » Rendering APP/views/contents/view.ctp	25.45
» » Rendering APP/views/layouts/default.ctp	23.67
» » » Rendering APP/views/elements/header.ctp	0.61
» » » Rendering APP/views/elements/content_sidebar.ctp	0.51
» » » Rendering APP/views/elements/footer.ctp	0.18

くっついたら剥がれない!?自然界の超強力接着剤

default

Query Explain:

Memory

Timers

くっついたら剥がれない!?自然界の超強力接着剤

Request History

Session

Request

Cake Params

$_GET

Cookie

Current Route

Sql Logs

default

Query Explain:

Memory

Timers

Logs

View Variables