4 条结果 关键词:吖啶橙 ×

Natural Molybdenite- and Tyrosinase-Based Amperometric Catechol Biosensor Using Acridine Orange as a Glue, Anchor, and Stabilizer for the Adsorbed Tyrosinase.

ACS omega 2021 Zhang Y, Wang Y, Zhang Z, Sobhy A 等 7 人

为开发基于天然矿物的电化学酶生物传感器,将天然辉钼矿(MLN)、酪氨酸酶(TYR)和吖啶橙(AO)共吸附于玻碳电极(GCE)表面,构建 TYR/AO/MLN-GCE 安培型酪氨酸酶生物传感器。该传感器用于儿茶酚的高灵敏测定,线性范围为 0.1–80 μM,灵敏度为 0.0315 μA/μM,检出限为 0.029 μM,响应时间小于 ...

Experimental and theoretical investigation effect of flavonols antioxidants on DNA damage.

Analytica chimica acta 2015 Ensafi AA, Heydari-Soureshjani E, Jafari-Asl M, Rezaei B 等 6 人

本文报道了一种新型电化学生物传感器,用于研究吖啶橙(AO)对DNA的损伤作用,并进一步检测三种黄酮类抗氧化剂(myricetin、fisetin和kaempferol)对DNA损伤的抑制效果。AO因对核酸具有高亲和力并能嵌入双链DNA、伸展双螺旋结构,被用作DNA损伤模型。传感器以还原氧化石墨烯修饰的丝网印刷电极(DNA/SPGE)...

Acridine orange-induced signal enhancement effect of tyrosinase-immobilized carbon-felt-based flow biosensor for highly sensitive detection of monophenolic compounds.

Analytical and bioanalytical chemistry 2011 Wang Y, Hasebe Y

将酪氨酸酶(TYR,EC 1.14.18.1)从含吖啶橙(AO)的混合缓冲液中,共价修饰到三聚氯氰(CC)活化的碳毡(CF)表面,制备 TYR/AO-CF 工作电极,用于电化学流动检测单酚和双酚类化合物(对氯苯酚 p-CP、对甲酚、苯酚、邻苯二酚)。该传感器在 −0.05 V(vs. Ag/AgCl)下检测酶催化生成的邻醌的还原电流...

Highly sensitive flow-biosensor for toxic phenolic compounds using tyrosinase and acridine orange-adsorbed carbon felt.

Journal of environmental sciences (China) 2009 Wang Y, Hasebe Y

将酪氨酸酶(TYR, EC 1.14.18.1)与吖啶橙(AO)共同物理吸附于碳毡(CF)表面,AO的共吸附对防止TYR在CF表面变性至关重要。所得TYR/AO-CF被用作新型高灵敏度安培流动生物传感器的检测单元,用于检测有毒氯酚化合物。注入200 μL酚类标准溶液后,在-50 mV(vs Ag/AgCl)下检测由TYR催化氧化(酚...