Amashanyarazi

Gel itose cyangwa ushire hamwe na Electrolytes

Ibikoresho bya mehaniki cyangwa viscous byo guhuza imiyoboro ni ngombwa, kandi akenshi electrolyte iba yuzuye ibintu bya gel cyangwa bikubiye muri sponge cyangwa imyenda yoroshye.Ubucuruzi bwa electrocardiogramu (ECG) electrode ikunze gutangwa nkibikoresho byateganijwe kugirango bikoreshwe rimwe, kandi uburyo bushobora kuba burinda ibintu kugirango ubuzima bwiyongere, cyangwa ibice bya quartz bigamije gukuraho uruhu.

Mubisanzwe, ionic igenda bityo rero ubwikorezi muri paste yo hejuru cyane iracyari munsi yamazi.Amashanyarazi atose yubushyuhe bwinshi (> 1%) yinjira muruhu ashishikaye, hamwe nigihe gihoraho gikunze kuvugwa ko kiri murutonde rwiminota 10 (Tregear, 1966; Almasi et al., 1970; McAdams et al., 1991b).Ariko, mubyukuri inzira ntabwo igaragara (nkuko inzira yo gukwirakwiza itari), kandi irashobora kumara amasaha niminsi (Grimnes, 1983a) (reba Ishusho 4.20).Kwinjira birakomeye niko hejuru ya electrolyte yibanze, ariko kandi bikarakaza uruhu.NaCl yihanganirwa neza nuruhu rwabantu murwego rwo hejuru kuruta izindi electrolytite.Igicapo 7.5 cerekana electrolyte yinjira muruhu 4 h ya mbere nyuma ya electrode itangiye kuruhu.Impedance kuri 1 Hz yiganjemo ibice bya corneum electrolyte, hamwe nintererano iri munsi ya 1% itangwa na electrode yonyine yerekana ibimenyetso bito bya polarizike.Niba imiyoboro yu icyuya yujujwe cyangwa iherutse kuzuzwa, imyitwarire yimiyoboro ihagarika inzitizi zikomeye za corneum yumye.

Imiyoboro σ ya bamwe bakunze gukoresha amavuta yo kwisiga / makariso ni: Redux creme (Hewlett Packard) 10.6 S / m, creme ya Electrode (Ibyatsi) 3.3 S / m, Beckman-Offner paste 17 S / m, paste yindege ya NASA 7.7 S / m , hamwe na NASA electrode cream 1.2 S / m.Ikirere cya NASA kirimo 9% NaCl, 3% ya potasiyumu ya chloride (KCl), na 3% ya calcium chloride (CaCl), yose hamwe 15% (kuburemere) ya electrolytike.Umuyoboro mwinshi wa electroencephalogramu (EEG) urashobora kuba urimo 45% KCl.

Ugereranije, 0,9% NaCl (kuburemere) igisubizo cyumubiri wa saline physiologique gifite ubushobozi bwa 1.4 S / m;geles nyinshi rero ni electrolytite ikomeye.Amazi yo mu nyanja arimo imyunyu igera kuri 3.5%, naho inyanja y'Umunyu irimo> 25% umunyu urimo 50% MgCl2, 30% NaCl, 14% CaCl2, na 6% KCl.Ibyo bitandukanye cyane n'umunyu wo mu nyanja (NaCl 97% byuzuye umunyu).Inyanja y'Umunyu yitwa "yapfuye" kubera ko umunyu mwinshi urinda ibimera n'amafi gutura.

Ubunararibonye bwerekanye ko imbaraga za gel zikomeye, niko byihuta kwinjira mu ruhu no mu miyoboro ibyuya.Nyamara, reaction zuruhu nko kurakara kuruhu no gutukura nabyo birihuta.Kubisuzuma byihuse ECG, geles irashobora gukoreshwa;kubikurikirana muminsi, gel yoguhuza igomba kuba ifite intege nke.Abantu benshi bashima amasaha yo kwiyuhagira mumazi yinyanja, kubwibyo umunyu wa 3.5% ugomba kwemerwa.

Kubikorwa bya electrodermal (Igice cya 10.3), gel yoguhuza amazi igomba kuba ifite umunyu muke kugirango wizere ko imyanda isohoka vuba.