Watch tiny robots swim through an eyeball to deliver medicine

first_img Click to view the privacy policy. Required fields are indicated by an asterisk (*) Watch tiny robots swim through an eyeball to deliver medicine By Frankie SchembriNov. 7, 2018 , 2:50 PM Country * Afghanistan Aland Islands Albania Algeria Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia, Plurinational State of Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, the Democratic Republic of the Cook Islands Costa Rica Cote d’Ivoire Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Holy See (Vatican City State) Honduras Hungary Iceland India Indonesia Iran, Islamic Republic of Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea, Democratic People’s Republic of Korea, Republic of Kuwait Kyrgyzstan Lao People’s Democratic Republic Latvia Lebanon Lesotho Liberia Libyan Arab Jamahiriya Liechtenstein Lithuania Luxembourg Macao Macedonia, the former Yugoslav Republic of Madagascar Malawi Malaysia Maldives Mali Malta Martinique Mauritania Mauritius Mayotte Mexico Moldova, Republic of Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Norway Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Qatar Reunion Romania Russian Federation Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Swaziland Sweden Switzerland Syrian Arab Republic Taiwan Tajikistan Tanzania, United Republic of Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela, Bolivarian Republic of Vietnam Virgin Islands, British Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe Although the mere thought of a swarm of microrobots burrowing into an eyeball is enough to make some people squirm, scientists believe tiny, controllable delivery vehicles could be the future of eye medicine. Now, researchers have developed a tiny, rotini-shaped spiral that could one day be deployed in the thousands for targeted drug delivery.Current treatments for eye diseases such as glaucoma or diabetic macular edema are delivered through direct injection or eyedrops. Those methods are effective but imprecise, often blanketing the entire eye in medication.So scientists used nanoscale 3D printing to create spiral-shaped robots small enough to pass through the dense jelly known as the vitreous humor that makes up most of the eyeball. The researchers added a slippery coating and magnetic materials so they could propel the microbots through the eye using a magnetic field.center_img Email The scientists then collected pig eyes from a slaughterhouse, injected a solution containing about 10,000 bots into each eye, and then placed them in a magnetic field, which they used to propel the bots to the retina at the back of the eye. Imaging showed the swarm successfully reached the retina in less than 30 minutes, about 10 times faster than letting similar-size particles diffuse through the eye, the researchers reported last week in Science Advances.The technology is still a long way from reaching the clinic. First, the researchers need to test the spiral bots in a living animal’s eye before they can begin testing in human patients. Then, they need to come up with a new, safe, easy-to-dissolve material for the bots, which are currently made with nickel. Once that happens, they say, all eyes will be on whether the bots will work well in humans. Sign up for our daily newsletter Get more great content like this delivered right to you! Countrylast_img read more