Stay connected with friends and family worldwide using this popular messaging app. WhatsApp is fully free to acquire, and it's accessible on both iOS and Android devices. Here are a few reasons why you should give WhatsApp a try: * Share messages quickly. * Make free voice and video calls through Wi-Fi or mobile data. * Create group chats with up

Microneedle patches represent a promising approach to drug delivery, offering several advantages over traditional methods. These minute needles, typically made from biocompatible materials, are designed to penetrate the skin's outermost layer without causing significant pain or harm. Upon application, the microneedles deliver medication directly in