Results 201 to 210 of about 34,452 (261)

A novel Fe-hemin-metal organic frameworks supported on chitosan-reduced graphene oxide for real-time monitoring of H2O2 released from living cells.

Analytica Chimica Acta, 2020
Herein, a kind of novel hemin-based metal organic frameworks (Fe-hemin-MOFs) with unique peroxidase-like bioactivity was developed for the first time. The synthesized Fe-hemin-MOFs exhibited satisfactory catalytic activity toward hydrogen peroxide (H2O2).
Peng Zhao, Sha Chen, Jun Zhou, Suyi Zhang, D. Huo, Changjun Hou   +5 more
semanticscholar   +1 more source

HEMIN BIOSYNTHESIS IN HAEMOPHILUS

Journal of Bacteriology, 1963
White, David C. (The Rockefeller Institute, New York, N.Y.) and S. Granick . Hemin biosynthesis in Haemophilus . J. Bacteriol. 85: 842–850. 1963.—Hemin-independent Haemophilus species have been shown to form hemin by the classical ...
D C, WHITE, S, GRANICK
openaire   +2 more sources

Of Hemin Bondage

Science Signaling, 2003
Tang et al. used structural and electrophysiological analysis to uncover a novel role for heme (the iron-containing cofactor that forms a prosthetic group essential for oxygen transport in heme-containing proteins) as an inhibitor of K + flux through Slo1 BK ion channels.
openaire   +2 more sources

Development of Co-hemin MOF/chitosan composite based biosensor for rapid detection of lactose

, 2020
An electrochemical biosensor containing Co-hemin metal organic frameworks (Co-hemin MOF)/chitosan composite and cellobiose dehydrogenase (CDH) was developed for lactose dectection.
H. Choi, Xiaoguang Yang, Guicheng Liu, Dong Sup Kim, Ji Hyun Yang, Ju Hun Lee, S. Han, Jinyoung Lee, S. W. Kim   +8 more
semanticscholar   +1 more source

Sandwich-type electrochemical immunosensor for sensitive detection of CEA based on the enhanced effects of Ag NPs@CS spaced Hemin/rGO.

Biosensors & bioelectronics, 2019
An ultrasensitive sandwich-type electrochemical immunosensor was designed by using gold nanoparticles (Au NPs) as the substrate material and microporous carbon spheres (CS) loading silver nanoparticles (Ag NPs) spaced Hemin/reduced graphene oxide (Hemin ...
Chunyan Zhang, Shuan Zhang, Yilei Jia, Yueyun Li, Ping Wang, Qing Liu, Zhen Xu, Xinjin Li, Yun-hui Dong   +8 more
semanticscholar   +1 more source

Ultrafast dynamics of hemin aggregates

Phys. Chem. Chem. Phys., 2017
The effects of solvents on the conformation of hemin leading to ultrafast libration process have been probed using the time-resolved optical Kerr effect (OKE) with 35 fs laser pulses (at a central wavelength of 800 nm).
Arpita Nath, J. A. Dharmadhikari, A. K. Dharmadhikari, D. Mathur, S. Mazumdar   +4 more
openaire   +2 more sources

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

Identification of frozen/thawed beef based on label-free detection of hemin (Iron Porphyrin) with solution-gated graphene transistor sensors

, 2020
The fraud labeling of frozen/thawed meat as fresh meat has become one of the severe problems in the current meat products market. Hemin, as a highly bioavailable iron form in beef, loses with exudates during freezing and thawing cycles.
Shengjie Gao, Rongrong Wang, Yulong Bi, Hao Qu, Ying Chen, Lei Zheng   +5 more
semanticscholar   +1 more source

Free radical reduction of hemin c

Biochimica et Biophysica Acta (BBA) - General Subjects, 1975
Abstract With the electron pulse radiolysis technique, the rates of reduction of hemin(III) c by a number of free radicals have been determined in aqueous solution at neutral pH. Second-order rate constants for hemin(III) c reduction typical approach the diffusion controlled limit (approx. 10 9 M −1 · s −1 ).
H, Goff, M G, Simic
openaire   +2 more sources

Enhanced catalytic degradation of bisphenol A by hemin-MOFs supported on boron nitride via the photo-assisted heterogeneous activation of persulfate

, 2019
The wide variety applications of Bisphenol A (BPA) have resulted in the world wide concerns because of its toxicity and estrogenic activity. Thus, it is critical to explore efficient method for the degradation of BPA.
Qian Ke, Yanpeng Shi, Yixuan Liu, Feng Chen, Hao Wang, Xi-lin Wu, Hongjun Lin, Jianrong Chen   +7 more
semanticscholar   +1 more source