1.0thesmartcityjournal.comhttps://www.thesmartcityjournal.com/enrich600338<blockquote class="wp-embedded-content" data-secret="T0bqTGAy3b"><a href="https://www.thesmartcityjournal.com/en/investigation/developments-towards-needle-free-injections">Developments towards needle-free injections</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.thesmartcityjournal.com/en/investigation/developments-towards-needle-free-injections/embed#?secret=T0bqTGAy3b" width="600" height="338" title="“Developments towards needle-free injections” — thesmartcityjournal.com" data-secret="T0bqTGAy3b" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.thesmartcityjournal.com/wp-includes/js/wp-embed.min.js </script> https://www.thesmartcityjournal.com/wp-content/uploads/2025/11/inyecciones-sin-agujas-tecnologia-bubble-gun-scaled.jpg2560931An innovative team improved the control of fluid jets to streamline the development of needle-free injections Roughly 44 million needles are used each day. Needles are fundamental for vaccination, blood sampling and drug delivery. And they have inked millions of tattoos. Yet they must be used correctly, instil fear among many people and create a…