인간의 통증 조절은 뇌 신경 전류에 따라 달라진다, 이들 분석 진단은 우울증, 자살 충동, 암 통증, 질병 통증, 치매, 간질 통증 등과 같은 신경 신호 감지와 관련된다. 이같은 통증진단을 위해 생체 내 0.1 mm 마이크로 와이어 프로브를 사용하여 전기화학적 3전극 시스템으로 뇌 전류를 분석했으며, 이 프로브는 탄소 나노튜브 페이스트 코팅 바늘 타입을 사용하였다. 이때 작업 전극은 직경 0.3 mm 바늘 타입 Ag/AgCl 코팅 Ag 와이어 기준으로 쥐 뇌의 근육 중심에 삽입되었고, 기준전극은 직경 0.1 mm Pt 마이크로 바늘을 생체 내 근육 피부 깊숙이 5 mm 깊이 삽입하여 2.0~–2.0 V 전위 창, 50 mv/s 주기 스캔 및 신체 시스템의 1.0×10–5A 민감도로 마취상태에서 진단하였다.

As the human pain controls depend on the brain neuro current, here assay is related to specific nerve potential detection, nerve pain induced amplification current detection, such as Depression, suicidal impulse, cancer pain, disease pain, dementia, epileptic pain signals, etc. For this purpose, the brain current was analyzed by electrochemical three-electrode systems using 0.1-mm micro wire in vivo probe, which probe was made by using carbon nano tube paste coated needle type. Here working electrode was inserted in the rat brain’s muscle core with a 0.3-mm-diameter needle type Ag/AgCl Cl-coated Ag wire reference, and counter electrode of 0.1-mm-diameter Pt micro needle was inserted 5 mm deep into the in vivo muscle skin, under anesthesia with 2.0 ~ -2.0 V potential windows, 50 mv/s cyclic scan and 1.0×10-5A chrono amperometric sensitivity on the body systems. Under the optimum conditions, diagnostic application was performed to such as smell signal, muscular strength, five/sense assay and thinking neuro current. These neuro diagnostic technologies can include auditory sonar recognition, odor diagnosis, texture recognition, emotion recognition, visible color change recognition, etc. It can also amplify emotional recognition such as joy, hate, love, sadness, etc. And it can extend the pain of the skin or in-vivo whole body.