Results 221 to 230 of about 39,725 (289)

G-Quadruplex/Hemin DNAzyme-Functionalized Silver Nanoclusters with Synergistic Antibacterial and Wound Healing Capabilities for Infected Wound Management.

Small, 2023
Systematic management of infected wounds requires simultaneous antiinfection and wound healing, which has become the current treatment dilemma. Recently, a multifunctional silver nanoclusters (AgNCs)-based hydrogel dressing to meet these demands is ...
Jiaojiao Zhu, Tiao Wen, Shuangquan Qu, Qingnian Li, Biwu Liu, Wenhu Zhou   +5 more
semanticscholar   +1 more source

Simultaneous measurement of ochratoxin A and aflatoxin B1 using a duplexed-electrochemical aptasensor based on carbon nanodots decorated with gold nanoparticles and two redox probes hemin@HKUST-1 and ferrocene@HKUST-1.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2023
An electrochemical aptasensor was developed for the simultaneous determination of ochratoxin A (OTA) and aflatoxin B1 (AFB1). Two compounds hemin@HKUST-1 and ferrocene@HKUST-1 were synthesized by encapsulating hemin and ferrocene inside the MOF made by ...
F. Jahangiri–Dehaghani, H. Zare, Z. Shekari   +2 more
semanticscholar   +1 more source

Selective Hemin Binding by a Non-G-quadruplex Aptamer with Higher Affinity and Better Peroxidase-like Activity.

Angewandte Chemie, 2023
Previous aptamers for porphyrins and metalloporphyrins were all guanine-rich sequences that can fold in G-quadruplex structures. Due to stacking-based binding, these aptamers can hardly tell different porphyrins apart, and they can also bind other planar
Lide Gu, Yuzhe Ding, Yang Zhou, Yaoxuan Zhang, Deli Wang, Juewen Liu   +5 more
semanticscholar   +1 more source

Colorimetric and Photocurrent-Polarity-Switching Photoelectrochemical Dual-Mode Sensing Platform for Highly Selective Detection of Mercury Ions Based on the Split G-Quadruplex-Hemin Complex.

Analytical Chemistry, 2022
Mercury ion (Hg2+) is one of the most harmful heavy metal ions with the greatest impact on public health. Herein, based on the excellent catalytic activity toward 3,3',5,5'-tetramethylbenzidine (TMB) and the strong photocurrent-polarity-switching ability
Yamin Fu, Cuicui Du, Qingqing Zhang, Ke Xiao, Xiaohua Zhang, Jinhua Chen   +5 more
semanticscholar   +1 more source

Biomimetic Nanozymes Based on Coassembly of Amino Acid and Hemin for Catalytic Oxidation and Sensing of Biomolecules.

Small, 2021
Nanoassemblies based on self-assembly of biological building blocks are promising in mimicking the nanostructures, properties, and functionalities of natural enzymes.
Rui Geng, Rui Chang, Qianli Zou, Guizhi Shen, T. Jiao, Xuehai Yan   +5 more
semanticscholar   +1 more source

Enzyme-Loaded Hemin/G-Quadruplex-Modified ZIF-90 Metal-Organic Framework Nanoparticles: Bioreactor Nanozymes for the Cascaded Oxidation of N-hydroxy-l-arginine and Sensing Applications.

Small, 2022
Biocatalytic cascades are challenging to operate in homogeneous solution, where diffusional mass transport hinders efficient communication between the reactive components.
C. Chen, M. Vázquez‐González, Michael P. O’Hagan, Yuanyuan Ouyang, Zhanhui Wang, I. Willner   +5 more
semanticscholar   +1 more source

Highly Sensitive Biosensing Applications of a Magnetically Immobilizable Covalent G-Quadruplex-Hemin DNAzyme Catalytic System.

Analytical Chemistry, 2022
G-quadruplex/hemin (G4/hemin) DNAzymes are biosensing systems, but their application remains limited by an overall low activity and a rather high level of unwarranted background reactions.
Yun Chen, Dehui Qiu, Xiaobo Zhang, Yuan Liu, Mingpan Cheng, Jianping Lei, J. Mergny, H. Ju, Jun Zhou   +8 more
semanticscholar   +1 more source

Generation of high-valent iron-oxo porphyrin cation radicals on hemin loaded carbon nanotubes for efficient degradation of sulfathiazole.

Journal of Hazardous Materials, 2022
Hemin has attracted considerable interest as an efficient catalyst recently, however, its direct application is inefficient due to severe molecular aggregation. Immobilizing hemin on various supports is a feasible approach to address this issue.
Sijing Chen, Zhen Li, Longsheng Wu, Lu Liu, Jingping Hu, Huijie Hou, S. Liang, Jiakuan Yang   +7 more
semanticscholar   +1 more source

Hemin mitigates contrast‐induced nephropathy by inhibiting ferroptosis via HO‐1/Nrf2/GPX4 pathway

Clinical and Experimental Pharmacology and Physiology, 2022
Contrast‐induced nephropathy (CIN) is a common complication with adverse outcome after iodinated‐contrast injection, yet still lacking effective medication. Heme oxygenase‐1 (HO‐1) has been reported to play an important role against renal injuries. Hemin,
Zhao Gao, Ziyue Zhang, Daqian Gu, Yunqian Li, Kun Zhang, Xiaoli Dong, Lingli Liu, Jiye Zhang, Jimin Chen, Duozhi Wu, M. Zeng   +10 more
semanticscholar   +1 more source

Biomimetic design of graphdiyne supported hemin for enhanced peroxidase-like activity.

Journal of Colloid and Interface Science, 2021
Effective electronic interactions between molecular catalysts and supports are critical for heterogeneous enzyme mimics, yet they are frequently neglected in most catalyst designs.
Tao Wang, Xuelong Bi, Lina Wang, Manhong Liu, William W. Yu, Zhiling Zhu, Ning Sui   +6 more
semanticscholar   +1 more source