E-tato telapak tangan dapat mengetahui kapan Anda stres

E-tato telapak tangan dapat mengetahui kapan Anda stres

Telapak tangan kita memberi tahu kita banyak hal tentang keadaan emosi kita, cenderung basah ketika orang bersemangat atau gugup. Reaksi ini digunakan untuk mengukur stres emosional dan membantu orang dengan masalah kesehatan mental, tetapi perangkat untuk melakukannya sekarang berukuran besar, tidak dapat diandalkan dan dapat melanggengkan stigma sosial dengan menempelkan sensor yang sangat terlihat pada bagian tubuh yang menonjol.

Para peneliti di The University of Texas di Austin dan Texas A&M University telah menerapkan teknologi tato elektronik (e-tattoo) yang muncul untuk jenis pemantauan ini, yang dikenal sebagai aktivitas elektroda atau penginderaan EDA. Dalam sebuah makalah baru yang diterbitkan baru-baru ini diNature Communications, para peneliti menciptakan tato elektronik berbasis graphene yang menempel pada telapak tangan, hampir tidak terlihat dan terhubung ke jam tangan pintar.

"Ini sangat tidak mengganggu sehingga orang terkadang lupa bahwa mereka memakainya, dan itu juga mengurangi stigma sosial mengenakan perangkat ini di tempat-tempat yang menonjol di tubuh," kata Nanshu Lu, profesor di Departemen Teknik Dirgantara dan Mekanika Teknik dan pemimpin proyek.

Lu dan kolaboratornya telah memajukan teknologi e-tato yang dapat dikenakan selama bertahun-tahun. Graphene telah menjadi bahan favorit karena seberapa tipis itu dan seberapa baik ia mengukur potensi listrik dari tubuh manusia, yang mengarah ke pembacaan yang sangat akurat.

Tapi, bahan ultra-tipis seperti itu tidak bisa menangani banyak, jika ada ketegangan. Sehingga membuat mengaplikasikannya ke bagian tubuh yang mencakup banyak gerakan, seperti telapak tangan/pergelangan tangan, menantang.

Saus rahasia dari penemuan ini adalah bagaimana e-tato di telapak tangan berhasil mentransfer data ke sirkuit yang kaku – dalam hal ini jam tangan pintar yang tersedia secara komersial, dalam pengaturan rawat jalan di luar lab. Mereka menggunakan pita ular yang memiliki dua lapisan graphene dan emas yang sebagian tumpang tindih. Dengan mengayunkan pita ke depan dan ke belakang, ia dapat menangani ketegangan yang datang dengan gerakan tangan untuk kegiatan sehari-hari seperti memegang setir saat mengemudi, membuka pintu, berlari dll.

Teknologi pemantauan telapak tangan saat ini menggunakan elektroda besar yang jatuh dan sangat terlihat, atau sensor EDA yang diterapkan ke bagian lain dari tubuh, yang memberikan pembacaan yang kurang akurat.

Peneliti lain telah mencoba metode serupa menggunakan pita garis lurus setebal nanometer untuk menghubungkan tato ke pembaca, tetapi mereka tidak dapat menangani ketegangan gerakan konstan.

Lu mengatakan para peneliti terinspirasi oleh realitas virtual (VR), game, dan metaverse yang masuk untuk penelitian ini. VR digunakan dalam beberapa kasus untuk mengobati penyakit mental; namun, kemampuan sadar manusia dalam VR tetap kurang dalam banyak hal.

"Anda ingin tahu apakah orang-orang menanggapi perlakuan ini," kata Lu. "Apakah itu membantu mereka? Saat ini, itu sulit untuk dikatakan."

Anggota tim lainnya termasuk Hongwoo Jang dan Eunbin Kim dari Texas Materials Institute; Sangjun Kim dan Kyoung-Ho Ha dari Departemen Teknik Mesin Walker; Xiangxing Yang dari Departemen Teknik Elektro dan Komputer Keluarga Chandra; serta Kaan Sel dan Roozbeh Jafari dari Departemen Teknik Elektro dan Komputer Texas A&M.


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