Results 231 to 240 of about 39,725 (289)

Synthesis of hemin C from hemin

Journal of the Chemical Society, Chemical Communications, 1977
Hemin C (2) was prepared in 45–50% yield by the reduction of a solution of iron protopophyrin IX [hemin (1)] and L-cysteine with sodium borohydride in the presence of oxygen and cetyltrimethylammonium bromide micelle.
Shosuke Kojo, Seiyo Sano
openaire   +1 more source

Highly-sensitive and fast detection of human telomeric G-Quadruplex DNA based on a hemin-conjugated fluorescent metal-organic framework platform.

Biosensors & bioelectronics, 2021
The formation of G-quadruplex (G4) structures in Human telomeric DNA (H-Telo) has been demonstrated to inhibit the activity of telomerase enzyme that is associated with the proliferation of many cancer cells.
Vahid Javan Kouzegaran, K. Farhadi, M. Forough, M. Bahram, Özgül Persil Çetinkol   +4 more
semanticscholar   +1 more source

Amplified Electrochemical Hydrogen Peroxide Sensing Based on Cu-porphyrin Metal Organic Framework Nanofilm and G-quadruplex-hemin DNAzyme.

ACS Applied Materials and Interfaces, 2020
A novel electrochemical hydrogen peroxide (H2O2) sensor based on Cu-porphyrin(Cu-TCPP)/G-quadruplex-hemin nanocomposite was constructed by assembling two-dimensional Cu-TCPP metal organic framework nanofilm and G-quadruplex-hemin DNAzyme.
Junping Ma, Guozhen Chen, Wushuang Bai, Jianbin Zheng   +3 more
semanticscholar   +1 more source

One-pot construction of acid phosphatase and hemin loaded multifunctional metal-organic framework nanosheets for ratiometric fluorescent arsenate sensing.

Journal of Hazardous Materials, 2020
Exploring high-performance sensors for toxic arsenic detection is highly desired because of its great threat to the environment. Herein, we report a ratiometric fluorescent biosensor based on acid phosphatase and hemin loaded multifunctional Zn-based ...
Xuechao Xu, Zhijie Luo, Kun Ye, Xiaobo Zou, Xiangheng Niu, Jianming Pan   +5 more
semanticscholar   +1 more source

NIR Light‐Driven Bi2Se3‐Based Nanoreactor with “Three in One” Hemin‐Assisted Cascade Catalysis for Synergetic Cancer Therapy

Advanced Functional Materials, 2020
Photocatalytic semiconductor‐based nanoreactors, that convert nontoxic molecules into toxic ones for cancer therapy, have attracted great interest. However, its therapeutic efficiency is limited by the fast electron–hole recombination within a narrow ...
Xiaoyan Niu, Yang Liu, Xiaoming Li, Wei Wang, Zhi Yuan   +4 more
semanticscholar   +1 more source

Myocyte injury by hemin

In Vitro Cellular & Developmental Biology - Animal, 1993
Effects of free hemin on myocardium were investigated using a model of neonatal myocyte primary cultures. Cells were subjected to free hemin at concentrations up to 20 microM and equilibrated for 5 h at 37 degrees C. Distribution of hemin in media, cell sarcolemma, and cell interior was evaluated.
V, Bhoite-Solomon, G, Kessler-Icekson, N, Shaklai   +2 more
openaire   +2 more sources

Catalytic nanographene oxide with hemin for enhanced photodynamic therapy.

Journal of Controlled Release, 2020
Hypoxia is a hallmark of many malignant solid tumors. The inadequate oxygen concentration in the hypoxic regions of a solid tumor impedes the efficiency of photodynamic therapy (PDT) because the generation of reactive oxygen species during the PDT ...
Abhishek Sahu, Kiyoon Min, Jin Jeon, H. Yang, G. Tae   +4 more
semanticscholar   +1 more source

Electrocatalysis of carbon dioxide with hemin and hemin-coated latex

Journal of Electroanalytical Chemistry, 2005
Abstract Carbon dioxide was reduced catalytically with hemin in 2-propanol to reveal a cathodic wave at −1.1 V. The catalytic activity was demonstrated with the UV spectra in which Fe 2+ (hemin) was oxidized with CO 2 . Hemin was immobilized on polyallylamine–polystyrene latex as a quasi solid catalyst.
Yanfang Gao, Jingyuan Chen
openaire   +1 more source

A novel dual signal and label-free electrochemical aptasensor for mucin 1 based on hemin/graphene@PdPtNPs.

Biosensors & bioelectronics, 2020
A dual signal and label-free electrochemical aptasensor for mucin 1 was constructed based on hemin/graphene@PdPtNPs nanocomposite (H-Gr@PdPtNPs). Hemin attached on the graphene surface not only improves the solubility of graphene and acts as an in-situ ...
Guojuan Zhang, Zhiguang Liu, Lifang Fan, Yujie Han, Yujing Guo   +4 more
semanticscholar   +1 more source

Effects of Hemin on Erythropoiesis

1989
It is clear that in vitro hemin increases the number of blood BFU-E derived colonies from normal donors. This occurs with sickle donors as well, despite the increased levels of hemin in vivo in these patients. The effect of hemin on relative gamma globin synthesis is inconsistent, however.
B P, Alter, J M, Schofield, L Y, He, R S, Weinberg   +3 more
openaire   +2 more sources