Development of a painless self-tattoo technique

Tattoo lovers are forced to sit for long hours and endure the pain of needle pricks in tattoo parlors, and experts have created a small skin patch that allows you to apply tattoos without going to its parlors.

Georgia Tech researchers have developed an inexpensive, painless, and bloodless tattoo that can be self-applied and uses several techniques.

“We have miniaturized the needle to be painless, but we are still effectively applying tattoo ink to the skin,” said lead researcher Mark Prausnitz.

Prausnitz, Regent Professor and J. Erskine Love, Jr. Chair at the School of Chemical and Biomolecular Engineering, presented the study to iScience, co-authored with Georgia Tech postdoctoral fellow Sun Li.

Tattoos are used medically to cover up scars, direct radiation therapy for cancer recurrence, or nipple repair after breast surgery.

Tattoos can also be used in place of bracelets as medical warnings for serious illnesses such as diabetes, epilepsy, or allergies.

There are already many beauty products on the market that use microneedles, mainly for anti-aging, but the development of microneedle technology for tattooing is something new.

Lesson cranberries Microneedle patches have been around for many years to inject drugs and vaccines into the skin without the use of hypodermic needles. Others may prefer tattoos that are simply pressed into the skin and cause no pain.”

Typically, tattoos use large needles that repeatedly pierce the skin to get a good shape, and the process can take a long time, in addition to some pain.

A Georgia Tech team has developed microneedles smaller than a grain of sand, made from tattoo ink embedded in a soluble matrix. “Because microneedles are made from tattoo ink, they are very efficient at injecting ink into the skin,” said the lead author. Son Lee. A minute is applied to the skin only once, and then dissolves, leaving the ink on the skin after a few minutes without bleeding.

tattoo technique

While most medical or cosmetic microneedle patches contain tens or hundreds of microneedles arranged in a square or circle pattern, microneedle tattoos print a pattern that can include letters, numbers, symbols, and images. Each microneedle is like a pixel to create the image of the tattoo. any shape and pattern.

The researchers started with a mold containing microneedles in a pattern that forms the image. They filled the microneedles in the mold with tattoo ink and added a protective patch for ease of handling. The resulting patch was then applied to the skin for several minutes, during which time the fine needles dissolved and released tattoo ink. Incorporating tattoo inks of different colors into fine needles, including light black inks that can only be seen under ultraviolet light illumination.

Prausenitz’s lab has been researching microneedles for vaccine delivery for years and realized they could be equally applicable to tattoos. With support from the Cat and Canine Pregnancy Prevention Coalition, Prausnitz’s team began working on tattoos to identify neutered pets, but then realized the technology could be effective in humans as well.

Tattoos have also been designed with privacy in mind, and researchers have created patches that are sensitive to environmental factors such as light or temperature changes. The tattoo only appears when exposed to ultraviolet rays or higher temperatures, providing patients with privacy by opening the tattoo only when desired. .

The study found that tattoos can last at least a year and are likely to be permanent, which also makes them a viable cosmetic option for people who want an aesthetic tattoo without the risk of infection or pain associated with a traditional tattoo. instead, it can be loaded with temporary tattoo inks to meet short-term medical and cosmetic needs.

According to the researchers, this tattoo can be applied to the skin of animals without causing them pain, instead of cutting the ear or applying an ear mark to animals to indicate the state of sterilization, a painless and secret tattoo can be applied instead.

Source: Medical Express