Size- and shape-dependent peroxidase-like catalytic activity of MnFe2O4 Nanoparticles and their applications in highly efficient colorimetric detection of target cancer cells

2015 ◽  
Vol 44 (28) ◽  
pp. 12871-12877 ◽  
Author(s):  
Yunhua Peng ◽  
Zhiyi Wang ◽  
Weisheng Liu ◽  
Haoli Zhang ◽  
Wei Zuo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Cancer Cells ◽  
Colorimetric Detection ◽  
Size And Shape ◽  
Highly Efficient ◽  
Mnfe2o4 Nanoparticles ◽  
Target Cancer

FA- and FITC-labeled MnFe2O4 nanohybrid exhibits highly efficient colorimetric detection of target cancer cells.

scholarly journals Highly efficient colorimetric detection of target cancer cells utilizing superior catalytic activity of graphene oxide–magnetic-platinum nanohybrids

Nanoscale ◽  
2014 ◽  
Vol 6 (3) ◽  
pp. 1529-1536 ◽  
Author(s):  
Moon Il Kim ◽  
Min Su Kim ◽  
Min-Ah Woo ◽  
Youngjin Ye ◽  
Kyoung Suk Kang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Cancer Cells ◽  
Colorimetric Detection ◽  
Highly Efficient ◽  
Target Cancer

One-pot synthesized DNA-templated Ag/Pt bimetallic nanoclusters as peroxidase mimics for colorimetric detection of thrombin

2014 ◽  
Vol 50 (86) ◽  
pp. 13103-13106 ◽  
Author(s):  
Cheng Zheng ◽  
Ai-Xian Zheng ◽  
Bo Liu ◽  
Xiao-Long Zhang ◽  
Yu He ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Colorimetric Detection ◽  
Protein Detection ◽  
High Sensitivity ◽  
One Pot ◽  
Highly Efficient ◽  
Bimetallic Nanoclusters ◽  
Peroxidase Mimics ◽  
Sensitivity And Selectivity ◽  
Colorimetric Aptasensor

One-pot synthesized DNA-templated Ag/Pt bimetallic nanoclusters possess highly-efficient peroxidase-like catalytic activity and are applied to design a colorimetric aptasensor for the protein detection with high sensitivity and selectivity.

Highly efficient colorimetric detection of cancer cells utilizing Fe-MIL-101 with intrinsic peroxidase-like catalytic activity over a broad pH range

RSC Advances ◽  
2015 ◽  
Vol 5 (119) ◽  
pp. 97910-97917 ◽  
Author(s):  
Daomei Chen ◽  
Bin Li ◽  
Liang Jiang ◽  
Deliang Duan ◽  
Yizhou Li ◽  
...  
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Folic Acid ◽  
Cancer Cells ◽  
Colorimetric Assay ◽  
Colorimetric Detection ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Iron Based ◽  
Ph Range

We take advantage of the folic acid conjugated iron-based metal–organic frameworks (Fe-MIL-101) without any surface modification to design a simple and sensitive colorimetric assay to detect cancer cells based on its intrinsic peroxidase-like activity over broad pH range.

Directed Evolution of P450 Fatty Acid Decarboxylases via High-Throughput Screening Towards Improved Catalytic Activity

2019 ◽  
Author(s):  
Huifang Xu ◽  
Weinan Liang ◽  
Linlin Ning ◽  
Yuanyuan Jiang ◽  
Wenxia Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Fatty Acid ◽  
Directed Evolution ◽  
High Throughput ◽  
High Throughput Screening ◽  
Colorimetric Detection ◽  
Screening Method ◽  
Random Mutagenesis ◽  
Direct Production ◽  
Consumption Activity

P450 fatty acid decarboxylases (FADCs) have recently been attracting considerable attention owing to their one-step direct production of industrially important 1-alkenes from biologically abundant feedstock free fatty acids under mild conditions. However, attempts to improve the catalytic activity of FADCs have met with little success. Protein engineering has been limited to selected residues and small mutant libraries due to lack of an effective high-throughput screening (HTS) method. Here, we devise a catalase-deficient <i>Escherichia coli</i> host strain and report an HTS approach based on colorimetric detection of H<sub>2</sub>O<sub>2</sub>-consumption activity of FADCs. Directed evolution enabled by this method has led to effective identification for the first time of improved FADC variants for medium-chain 1-alkene production from both DNA shuffling and random mutagenesis libraries. Advantageously, this screening method can be extended to other enzymes that stoichiometrically utilize H<sub>2</sub>O<sub>2</sub> as co-substrate.

NiAg-graphene quantum dot-graphene hybrid with high oxidase-like catalytic activity for sensitive colorimetric detection of malathion

2021 ◽  
Author(s):  
Xu Dan ◽  
Ruiyi Li ◽  
Qinsheng Wang ◽  
Yongqiang Yang ◽  
Haiyan Zhu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Catalytic Activity ◽  
Quantum Dot ◽  
Colorimetric Detection ◽  
Graphene Quantum Dots ◽  
Functionalized Graphene ◽  
Graphene Quantum Dot ◽  
Nickel Silver

The paper reports the synthesis of nickel-silver-graphene quantum dot-graphene hybrid. Histidine-functionalized graphene quantum dots (His-GQDs) were bonded to graphene oxide (GO) and then combined with Ni2+ and Ag+ to form...

Rutile TiO2 single crystals delivering enhanced photocatalytic oxygen evolution performance

Nanoscale ◽  
2021 ◽  
Author(s):  
Bing Fu ◽  
Zhijiao Wu ◽  
Kai Guo ◽  
Lingyu Piao
Keyword(s):  
Catalytic Activity ◽  
Single Crystals ◽  
Oxygen Evolution ◽  
Water Oxidation ◽  
Charge Separation ◽  
High Surface ◽  
Rutile Tio2 ◽  
Highly Efficient ◽  
Photogenerated Charge Separation

Owing to their scientific and technological importance, the development of highly efficient photocatalytic water oxidation systems with rapid photogenerated charge separation and high surface catalytic activity has highly desirable for...

Industrial resin “INDION 130” modified with vanadyl cations as highly efficient heterogeneous catalyst for epoxidation of fatty compounds with TBHP as oxidant

2015 ◽  
Vol 39 (8) ◽  
pp. 5960-5965 ◽  
Author(s):  
Praveen K. Khatri ◽  
Mounika Aila ◽  
Jyoti Porwal ◽  
Savita Kaul ◽  
Suman L. Jain
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Cation Exchanger ◽  
Vanadium Catalyst ◽  
Highly Efficient ◽  
Efficient Heterogeneous Catalyst

Cation exchanger INDION 130 modified with vanadyl cations was found to be readily prepared and reusable and exhibited higher catalytic activity than the homogeneous oxo-vanadium catalyst for epoxidation of fatty compounds.

P57. Manipulating the bone mineral affinity of bisphosphonates to directly target cancer cells in the bone marrow

2008 ◽  
Vol 34 ◽  
pp. 42
Author(s):  
Florence Daubiné ◽  
Pierrick Fournier ◽  
Hal Ebetino ◽  
Philippe Clezardin
Keyword(s):  
Bone Marrow ◽  
Cancer Cells ◽  
Bone Mineral ◽  
Target Cancer

Colorimetric detection of cholesterol based on highly efficient peroxidase mimetic activity of graphene quantum dots

2015 ◽  
Vol 218 ◽  
pp. 42-50 ◽  
Author(s):  
Narsingh R. Nirala ◽  
Shiju Abraham ◽  
Vinod Kumar ◽  
Anushka Bansal ◽  
Anchal Srivastava ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Colorimetric Detection ◽  
Graphene Quantum Dots ◽  
Highly Efficient ◽  
Peroxidase Mimetic
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