In this work, we have investigated the potential of TMB as an acoustogenic photoacoustic probe for ROS/RNS. Our results indicate that TMB reacts with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce the blue oxidation product, while ROS, such as the superoxide radical anion, sodium peroxide, hydroxyl radical, or ...

2020年10月21日 · 四甲基联苯胺 (tmb) 是一种无毒、无致突变的无色染料，氧化后会产生独特的蓝色。 在这项工作中，我们研究了 TMB 作为 ROS/RNS 声学光声探针的潜力。

Recently, transition-metal-based enzymatic nanoagents (TM-EnzNAs) with catalytic production of reactive oxygen species (ROS) have been designed and intensively explored, which have become powerful nanoplatforms and exciting research frontiers in constructing next-generation nanotherapeutics to combat drug-resistant tumors and bacteria.

结果表明，当pH为6.4时，Bac-Au@Pt能快速氧化TMB，产生的ROS量比pH为7.4时增加6倍。 为了明确Bac-Au@Pt产生的ROS种类，研究人员记录了Bac-Au@Pt在 磷酸缓冲液 (pH6.4和7.4)中的电子自旋共振(ESR)谱。

2021年4月15日 · Modulation OVs of Mn 3 O 4 nanozymes can enhance the oxygen storage capacity and increase Mn species with lower valence states, which can generate abundant and multifarious ROS for the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) substrates.

TMB can function as a photoacoustic probe for reactive oxygen and nitrogen species (ROS/RNS), reacting with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce blue oxidation products. TMB can detect the singlet oxygen produced by the outer membrane of Escherichia coli ATCC 25922.

2020年10月21日 · Our results indicate that TMB reacts with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce the blue oxidation product, while ROS, such as the superoxide radical...

活性氧（reactive oxygen species，ROS）指来源于氧的自由基和非自由基，包含了超氧阴离子（O 2•-）、过氧化氢（H2O2）、羟基自由基（•OH）、臭氧（O3）和单线态氧（1O2）等，由于它们含有不成对的电子，因而具…

2024年7月10日 · 为了评估FeNC及FeNSC活化氧气的性能，该论文选用3,3’,5,5’-tetramethylbenzidine（TMB）分子作为反应模型，通过低温电子顺磁共振表征和自由基捕获实验，发现FeNSC通过结合态ROS路径活化氧气使得以TMB为底物的类氧化酶活性提高2.4倍，反应中产生的游离态ROS仅为FeNC的17 ...

2020年10月21日 · In this work, we have investigated the potential of TMB as an acoustogenic photoacoustic probe for ROS/RNS. Our results indicate that TMB reacts with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce the blue oxidation product, while ROS, such as the superoxide radical anion, sodium peroxide, hydroxyl radical, or ...