Ultrasensitive and selective molecularly imprinted electrochemical oxaliplatin sensor based on a novel nitrogen-doped carbon nanotubes/Ag@cu MOF as a signal enhancer and reporter nanohybrid. 2021

Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia.

A sensitive and selective molecular imprinted polymeric network (MIP) electrochemical sensor is proposed for the determination of anti-cancer drug oxaliplatin (OXAL). The polymeric network [poly(pyrrole)] was electrodeposited on a glassy carbon electrode (GCE) modified with silver nanoparticles (Ag) functionalized Cu-metal organic framework (Cu-BDC) and nitrogen-doped carbon nanotubes (N-CNTs). The MIP-Ag@Cu-BDC /N-CNTs/GCE showed an observable reduction peak at -0.14 V, which corresponds to the Cu-BDC reduction. This peak increased and decreased by eluting and rebinding of OXAL, respectively. The binding constant between OXAL and Cu-BDC was calculated to be 3.5 ± 0.1 × 107 mol-1 L. The electrochemical signal (∆i) increased with increasing OXAL concentration in the range 0.056-200 ng mL-1 with a limit of detection (LOD, S/N = 3) of 0.016 ng mL-1. The combination of N-CNTs and Ag@Cu-BDC improves both the conductivity and the anchoring sites for binding the polymer film on the surface of the electrode. The MIP-based electrochemical sensor offered outstanding sensitivity, selectivity, reproducibility, and stability. The MIP-Ag@Cu-BDC /N-CNTs/GCE was applied to determine OXAL in pharmaceutical injections, human plasma, and urine samples with good recoveries (97.5-105%) and acceptable relative standard deviations (RSDs = 1.8-3.2%). Factors affecting fabrication of MIP and OXAL determination were optimized using standard orthogonal design using L25 (56) matrix. This MIP based electrochemical sensor opens a new venue for the fabrication of other similar  sensors and biosensors.

UI MeSH Term Description Entries
D009584 Nitrogen An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
D011108 Polymers Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS). Polymer
D011758 Pyrroles Azoles of one NITROGEN and two double bonds that have aromatic chemical properties. Pyrrole
D003300 Copper A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55. Copper-63,Copper 63
D004566 Electrodes Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum. Anode,Anode Materials,Cathode,Cathode Materials,Anode Material,Anodes,Cathode Material,Cathodes,Electrode,Material, Anode,Material, Cathode
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000073396 Metal-Organic Frameworks Supramolecular networks that consist of ordered arrangements of organic electron donor linkers (usually ditopic or polytopic organic carboxylates) and metal cations. They can have an extremely high surface area and adjustable pore size that allows for the insertion of other molecules capable of various functions such as catalysis, capture of carbon dioxide, and drug delivery. Metal Organic Framework,Metal-Organic Framework,Porous Coordination Polymer,Covalent Organic Framework,Porous Coordination Networks,Porous Coordination Polymers,Coordination Networks, Porous,Coordination Polymer, Porous,Coordination Polymers, Porous,Framework, Covalent Organic,Framework, Metal Organic,Framework, Metal-Organic,Frameworks, Metal-Organic,Metal Organic Frameworks,Networks, Porous Coordination,Organic Framework, Covalent,Organic Framework, Metal,Polymer, Porous Coordination,Polymers, Porous Coordination
D000077150 Oxaliplatin An organoplatinum complex in which the platinum atom is complexed with 1,2-diaminocyclohexane, and with an oxalate ligand which is displaced to yield active oxaliplatin derivatives. These derivatives form inter- and intra-strand DNA crosslinks that inhibit DNA replication and transcription. Oxaliplatin is an antineoplastic agent that is often administered with FLUOROURACIL and FOLINIC ACID in the treatment of metastatic COLORECTAL NEOPLASMS. Platinum(2+) ethanedioate (1R,2R)-1,2-cyclohexanediamine (1:1:1),1,2-Diaminocyclohexane Platinum Oxalate,1,2-Diamminocyclohexane(trans-1)oxolatoplatinum(II),ACT 078,ACT-078,Cis-oxalato-(trans-l)-1,2-diaminocyclohexane-platinum(II),Eloxatin,Eloxatine,L-OHP Cpd,Oxalato-(1,2-cyclohexanediamine)platinum II,Oxaliplatin, (SP-4-2-(1R-trans))-isomer,Oxaliplatin, (SP-4-2-(1S-trans))-isomer,Oxaliplatin, (SP-4-3-(cis))-isomer,Oxaliplatine,Platinum(II)-1,2-cyclohexanediamine Oxalate,1,2 Diaminocyclohexane Platinum Oxalate,ACT078
D000082582 Molecularly Imprinted Polymers Synthetic polymeric matrices with artificial molecular recognition sites generated by MOLECULAR IMPRINTING TECHNIQUE. It can specifically bind target molecules (e.g., antibodies, enzymes or receptors). Imprinted Polymer, Molecularly,Molecularly Imprinted Polymer,Polymer, Molecularly Imprinted
D012834 Silver An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA.

Related Publications

Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
November 2022, The Analyst,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
August 2014, Biosensors & bioelectronics,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
February 2015, Biosensors & bioelectronics,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
August 2021, Analytical and bioanalytical chemistry,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
September 2022, Analytica chimica acta,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
May 2024, Analytical methods : advancing methods and applications,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
August 2022, Journal of pharmaceutical and biomedical analysis,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
June 2022, Biosensors & bioelectronics,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
February 2018, Talanta,
Mater H Mahnashi, and Ashraf M Mahmoud, and Khalid Alhazzani, and A Z Alanazi, and Ali Mohammed Alaseem, and Mohammad M Algahtani, and Mohamed M El-Wekil
November 2021, Biosensors & bioelectronics,
Copied contents to your clipboard!