4.7 Article

Direct Z-scheme NiTiO3/polyaniline heterojunction based photoelectrochemical aptasensor for the efficient detection of ochratoxin A in corn and soil

Related references

Note: Only part of the references are listed.
Article Engineering, Environmental

Photoelectrochemical and visual dual-mode sensor for efficient detection of Cry1Ab protein based on the proximity hybridization driven specific desorption of multifunctional probe

Shuyun Meng et al.

Summary: In this study, a photo-electrochemical and visual dual-mode sensor based on a proximity hybridization driven multifunctional probe was designed for Cry1Ab protein detection. The sensor achieved efficient detection by generating two independent signals simultaneously, providing improved reliability and accuracy. The combination of PEC and visual detection offered a promising approach for on-site detection of Cry1Ab protein.

JOURNAL OF HAZARDOUS MATERIALS (2023)

Article Chemistry, Multidisciplinary

Mo-Modified ZnIn2S4@NiTiO3 S-Scheme Heterojunction with Enhanced Interfacial Electric Field for Efficient Visible-Light-Driven Hydrogen Evolution

Jiafeng Zhu et al.

Summary: Design and synthesis of a multifunctional Mo-modified ZIS wrapped NTO microrods photocatalyst with enhanced interfacial electric field (IEF) effect and typical S-scheme heterojunction is reported. The catalyst exhibits wide-spectrum light absorption properties, excellent visible light-to-thermal energy effect, electron mobility, charges transfer, and strong IEF, resulting in efficient visible-light-driven photocatalytic hydrogen evolution. The Mo-1.4-ZIS@NTO catalyst shows superior performance with a high H2 evolution rate and apparent quantum efficiency.

ADVANCED FUNCTIONAL MATERIALS (2023)

Article Chemistry, Analytical

Tetrahedral DNA Nanostructure-Engineered Paper-Based Sensor with an Enhanced Antifouling Ability for Photoelectrochemical Sensing

Li Shan et al.

Summary: A newly designed two-in-one tetrahedral DNA (TDN) nanostructure with an antifouling surface and backbone-rigidified interfacial tracks was developed for highly sensitive and selective detection of miRNA-182-5p. The TDN-modified sensing interfaces demonstrated incomparable antifouling ability against protein samples and interfering miRNAs due to the strong hydrophilic capacity and special molecular conformations. The designed TDN-modified paper-based photoelectro-chemical sensor successfully quantified miRNA-182-5p with a low detection limit of 0.09 fM and high specificity in real samples, showing great promise for bioanalysis and clinical diagnosis.

ANALYTICAL CHEMISTRY (2023)

Article Chemistry, Analytical

Highly Efficient Wavelength-Resolved Electrochemiluminescence of Carbon Nitride Films for Ultrasensitive Multiplex MicroRNA Detection

Yanfeng Fang et al.

Summary: We synthesized highly efficient polymeric carbon nitride (CN) films with fine-tuned electrochemiluminescence (ECL) emission from blue to green. The naked eye observable emission was significantly enhanced, and the cathodic ECL efficiency was greatly improved compared to the reference. The mechanism studies revealed crucial factors for the high ECL efficiency of CN. Based on the high ECL efficiency and different colors of ECL emission, a multiplexed ECL biosensor was constructed to detect miRNA-21 and miRNA-141 simultaneously with low detection limits.

ANALYTICAL CHEMISTRY (2023)

Article Chemistry, Applied

In-depth interpretation of aptamer-based sensing on electrode: Dual-mode electrochemical-photoelectrochemical sensor for the ratiometric detection of patulin

Shuda Liu et al.

Summary: Electrochemical aptasensors using high-affinity aptamers have been widely used for quantifying food contaminants. However, the analytical performance can vary for different aptamers targeting the same contaminant. In this study, four aptamers with different sequences were compared for detecting patulin. The aptasensor with A22 exhibited the best performance, despite A42 having the highest affinity. The A22-based EC-PEC dual-mode ratiometric aptasensor showed a linear range of 50 fg mL-1 - 500 ng mL-1 and a detection limit of 30 fg mL-1 for patulin.

FOOD CHEMISTRY (2023)

Article Agriculture, Multidisciplinary

Novel Broad-Spectrum Aptamer Used to Build Fe-Co Nanoporous Carbon Highly Sensitive Sensing Platform for the Detection of Multiple Organophosphorus Pesticides

Guangxian Wang et al.

Summary: In this study, broad-spectrum aptamers for organophosphorous pesticides (OPs) were obtained through alternate target systematic evolution of ligands by exponential enrichment screening. The aptamer's secondary and tertiary structure analysis revealed a neck-loop structure forming a G-triplex with the target. Optimization of the aptamer resulted in a significantly increased affinity and a novel electrochemical biosensor was prepared for the detection of OPs.

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY (2023)

Article Biophysics

Photoelectrochemical sensors based on paper and their emerging applications in point-of-care testing

Yixiang Wang et al.

Summary: This review systematically discusses the design and fabrication of portable paper-based photoelectrochemical (PEC) sensors for point-of-care testing (POCT). It covers the flexible electronic devices made from paper, photosensitive materials, signal amplification strategies, and applications in medical diagnosis, environmental monitoring, and food safety. The opportunities and challenges of paper-based PEC sensing platforms are also summarized.

BIOSENSORS & BIOELECTRONICS (2023)

Article Chemistry, Analytical

A Target-Driven Self-Feedback Paper-Based Photoelectrochemical Sensing Platform for Ultrasensitive Detection of Ochratoxin A with an In2S3/WO3 Heterojunction Structure

Xiaoran Tan et al.

Summary: In this study, a paper-based photoelectrochemical (PEC) sensor was developed for ultrasensitive detection of OTA. By using polyvinylpyrrolidone-treated In2S3/WO3 functionalized paper as a signal transducer and employing the Exo III-assisted cycling process and PECCC redox cycling strategy, the sensor achieved high sensitivity in OTA detection.

ANALYTICAL CHEMISTRY (2022)

Review Biochemical Research Methods

Nanomaterial-based aptamer biosensors for ochratoxin A detection: a review

Xiujin Chen et al.

Summary: This review summarizes the development of nanomaterial-based aptasensors for Ochratoxin A (OTA) determination and sample treatment over the past 5 years. Various nanomaterials, including metal, carbon, luminescent, magnetic, and other types, have been used in OTA aptasensors. The limitations and future challenges in developing nanomaterial-based OTA aptasensors are also discussed.

ANALYTICAL AND BIOANALYTICAL CHEMISTRY (2022)

Article Environmental Sciences

Z-scheme WO3/PANI heterojunctions with enhanced photocatalytic activity under visible light: A depth experimental and DFT studies

Y. Naciri et al.

Summary: A WO3@PANI heterojunction photocatalyst was synthesized and characterized. The photocatalytic efficiency of the WO3@PANI nanocomposite was significantly improved under visible light irradiation, attributed to increased visible light absorption and efficient charge carrier separation.

CHEMOSPHERE (2022)

Article Chemistry, Applied

Label-free ratiometric homogeneous electrochemical aptasensor based on hybridization chain reaction for facile and rapid detection of aflatoxin B1 in cereal crops

Chengxi Zhu et al.

Summary: In this study, a label-free and immobilization-free ratiometric homogeneous electrochemical aptasensor was developed for the sensitive, rapid, and reliable determination of AFB1, with a detection limit of 38.8 pg mL(-1). The aptasensor was able to detect AFB1 in cereal samples with comparable reliability as HPLC-MS.

FOOD CHEMISTRY (2022)

Article Food Science & Technology

Biodegradation of ochratoxin A and ochratoxin B by Brevundimonas naejangsanensis isolated from soil

Mengxue Peng et al.

Summary: The strain Brevundimonas naejangsanensis ML17 can simultaneously degrade OTA and OTB, with a degradation rate of 100%. Its extracellular enzyme has a degradation rate of OTA above 90% within the temperature range of 25-55 degrees Celsius, making it a potential detoxifier for ochratoxins.

FOOD CONTROL (2022)

Article Chemistry, Physical

Design of noble metal-free NiTiO3/ZnIn2S4 heterojunction photocatalyst for efficient visible-light-assisted production of H2 and selective synthesis of 2,5-Bis(hydroxymethyl)furan

Suman Dhingra et al.

Summary: This work presents the development of noble metal-free NiTiO3/ZnIn2S4 heterojunction photocatalysts for efficient hydrogen production from water and in situ reduction of biomass derivative, 5-hydroxymethylfurfural (HMF), to value-added 2,5-Bis(hydroxymethyl)furan (BHMF). The optimized heterojunction, S3, showed the best photocatalytic activity with a high H2 generation rate and was coupled with the in situ reduction of HMF to achieve high yield and selectivity in BHMF production. The Z-scheme heterojunction between NiTiO3 and ZnIn2S4 played a crucial role in the enhanced photocatalytic activity. This work provides a greener pathway for solar energy harvesting and conversion to chemical energy.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Chemistry, Analytical

Core-shell Au@PtAg modified TiO2-Ti3C2 heterostructure and target-triggered DNAzyme cascade amplification for photoelectrochemical detection of ochratoxin A

Chen Chen et al.

Summary: This study successfully synthesized an Au@PtAg/TiO2-Ti3C2 Schottky junction photoelectrode, which improved the generation efficiency of photocurrent by capturing and storing photogenerated electrons. The sensitivity of the aptasensor was further enhanced through Mg2+-dependent DNAzyme cascade amplification.

ANALYTICA CHIMICA ACTA (2022)

Article Chemistry, Analytical

A Direct Z-Scheme AgBr/CuBi2O4 Photocathode for Ultrasensitive Detection of Ciprofloxacin and Ofloxacin by Controlling the Release of Luminol in Self-Powered Microfluidic Photoelectrochemical Aptasensors

Tingting Wu et al.

Summary: An innovative self-powered microfluidic photoelectrochemical aptasensor was developed for ultrasensitive detection of CIP and OFL. The aptasensor utilized ACO composites as the photocathode matrix and CZIS as the photoanode, resulting in wide linear ranges and low detection limits.

ANALYTICAL CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

Photothermal-Reagent-Triggered Visual Thermoresponsive and Quantized Photoelectrochemical Dual-Signal Assay

Lin Li et al.

Summary: This study develops a versatile collapsible lab-on-paper biosensor with photothermal effects for early-stage diagnosis and real-time surveillance of epidemic diseases. By implanting a zone with photothermal effects in the miniature space, it enables the on-site detection of microRNA-141 in body fluids and interconnects the traditional photocurrent signal with functional temperature response. The use of Fe3O4 nanoparticles and Prussian blue nanoparticles enhances the visualized thermoresponsive results. Control release of Fe3O4 nanoparticles and modulation of photoelectric signal attenuation improve the accuracy of target temperature signal prediction and enable ultrasensitive detection results.

ACS SENSORS (2022)

Article Chemistry, Multidisciplinary

A Ga Doped NiTiO3 Photocatalyst for Overall Water Splitting under Visible Light Illumination

Long Wang et al.

Summary: The study presents a rational design of an NTO-based photocatalytic system, achieving photocatalytic overall water splitting under both ultraviolet and visible light, paving the way for maximizing solar energy harvesting.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Analytical

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

Yamin Fu et al.

Summary: A dual-mode sensing platform assisted by magnetic NiCo2O4@SiO2-NH2 spheres was developed for colorimetric and photoelectrochemical (PEC) detection of Hg2+. The platform utilizes the split G-quadruplex-hemin complex's catalytic activity towards 3,3',5,5'-tetramethylbenzidine (TMB) and its photocurrent polarity-switching ability on SnS2 photoanode. This platform provides mutual authentication of detection results in different modes, improving accuracy and confidence in Hg2+ detection.

ANALYTICAL CHEMISTRY (2022)

Article Chemistry, Physical

Photocatalytic and photo-electrochemical ammonia synthesis over dimensional oriented cobalt titanate/nitrogen-doped reduced graphene oxide junction interface catalyst

K. M. Parida et al.

Summary: This study demonstrated the efficient nitrogen reduction to ammonia using a combination of cobalt titanate and nitrogen-doped reduced graphene oxide under visible light irradiation. By optimizing the concentration of nitrogen-doped reduced graphene oxide, the production of ammonia was significantly improved, paving the way for the development of highly active catalyst materials for sustainable energy conversion in the future.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Chemistry, Physical

Hollow Nanorods and Amorphous Co9S8 Quantum Dots Construct S-Scheme Heterojunction for Efficient Hydrogen Evolution

Hongying Li et al.

Summary: The study successfully prepared NiTiO3 hollow nanorods and Co9S8 quantum dots composite materials using an in situ growth method, which effectively enhanced the visible light absorption capacity and photocatalytic hydrogen production activity of the material. The S-scheme heterojunction constructed between the two semiconductors provided a special transmission path for carrier transfer and retained more useful electrons and holes for hydrogen evolution reaction, leading to a significant increase in hydrogen production efficiency.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

Review Materials Science, Multidisciplinary

A review of material aspects in developing direct Z-scheme photocatalysts

Xuan Li et al.

Summary: This study provides a comprehensive evaluation of direct Z-scheme photocatalysts, focusing on the formation mechanisms, applications, different charge transfer mechanisms, material systems, and emerging material modification strategies for performance improvement.

MATERIALS TODAY (2021)

Article Chemistry, Applied

Two-color, ultra-sensitive fluorescent strategy for Ochratoxin A detection based on hybridization chain reaction and DNA tweezers

Ge Wu et al.

Summary: A two-color fluorescent DNA tweezers developed for ultrasensitive detection of OTA shows a good linear range and detection limit, effectively reducing false positive rate in practical food samples.

FOOD CHEMISTRY (2021)

Article Polymer Science

Hierarchical PANI/CdS nanoarchitecture system for visible light induced photocatalytic dye degradation and photoelectrochemical water splitting

Surbhi Sharma et al.

Summary: A three-dimensional hierarchical PANI/CdS nanocomposite and heterojunction photoanode system were rationally designed, showing significantly enhanced visible light driven photocatalytic and photoelectrochemical activity, with higher photocurrent density and photocatalytic activity compared to CdS nanoflowers.

POLYMER (2021)

Article Chemistry, Physical

All-solid-state direct Z-scheme NiTiO3/Cd0.5Zn0.5S heterostructures for photocatalytic hydrogen evolution with visible light

Bifang Li et al.

Summary: The NiTiO3/Cd0.5Zn0.5S heterostructures exhibit efficient and stable hydrogen production under visible light, capturing the optical spectrum and enhancing the transfer of photogenerated charge carriers. The optimized photocatalyst achieves a high H-2 production rate and apparent quantum yield, with high stability attributed to the Z-schematic charge separation mechanism. A possible H-2 evolution mechanism over the NiTiO3/Cd0.5Zn0.5S heterostructures is proposed based on band structures, DFT calculations, and ESR tests.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Chemistry, Analytical

Recent advances in photoelectrochemical biosensors for analysis of mycotoxins in food

Qian Zhou et al.

TRAC-TRENDS IN ANALYTICAL CHEMISTRY (2020)

Article Chemistry, Applied

A risk assessment of dietary exposure to ochratoxin A for the Polish population

Ilona Hajok et al.

FOOD CHEMISTRY (2019)

Article Chemistry, Physical

A stable Ag3PO4@PANI core@shell hybrid: Enrichment photocatalytic degradation with π-π conjugation

Li Liu et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2017)

Article Chemistry, Physical

Nanocomposites of Anatase-Polyaniline Prepared via Self-Assembly

Dan Ping Wang et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2009)

Article Engineering, Chemical

Performance improvement of polysulfone ultrafiltration membrane by blending with polyaniline nanofibers

Zhifeng Fan et al.

JOURNAL OF MEMBRANE SCIENCE (2008)