کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5144958 1496894 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In vitro development and in vivo application of a platinum-based electrochemical device for continuous measurements of peripheral tissue oxygen
ترجمه فارسی عنوان
توسعه در محیط آزمایشگاهی و کاربرد آن در محیط بدن الکتروشیمیایی مبتنی بر پلاتین برای اندازه گیری های پیوسته از اکسیژن بافت محیطی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Acute limb ischaemia is caused by compromised tissue perfusion and requires immediate attention to reduce the occurrence of secondary complications that could lead to amputation or death. To address this, we have developed a novel platinum (Pt)-based electrochemical oxygen (O2) device for future applications in clinical monitoring of peripheral tissue ischaemia. The effect of integrating a Pt pseudo-reference electrode into the O2 device was investigated in vitro with an optimum reduction potential of − 0.80 V. A non-significant (p = 0.11) decrease in sensitivity was recorded when compared against an established Pt-based O2 sensor operating at − 0.65 V. Furthermore, a biocompatible clinical sensor (ClinOX) was designed, demonstrating excellent linearity (R2 = 0.99) and sensitivity (1.41 ± 0.02 nA μM− 1) for O2 detection. Significant rapid decreases in the O2 current during in vivo ischaemic insults in rodent limbs were reported for Pt-Pt (p < 0.001) and ClinOX (p < 0.01) and for ClinOX (p < 0.001) in porcine limbs. Ex vivo sensocompatibility investigations identified no significant difference (p = 0.08) in sensitivity values over 14 days of exposure to tissue homogenate. The Pt-Pt based O2 design demonstrated high sensitivity for tissue ischaemia detection and thus warrants future clinical investigation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioelectrochemistry - Volume 119, February 2018, Pages 124-135
نویسندگان
, ,