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Co9S8 nanoparticle-functionalized CdS nanoflowers for signal-off photoelectrochemical bioanalysis of carcinoembryonic antigens with hybridization chain reaction SCIE
期刊论文 | 2023 , 47 (13) , 6275-6281 | NEW JOURNAL OF CHEMISTRY
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In this study, a signal-off photoelectrochemical aptasensing approach was designed for quantitative screening of carcinoembryonic antigen (CEA) by using cobalt sulfide nanoparticle-functionalized cadmium sulfide nanoflowers (Co9S8@CdS) as photoactive matrix and CuS nanoparticles (NPs) as electronic extinguisher, coupling with target-induced hybridization chain reaction (HCR). The Co9S8@CdS nanohybrids, which were synthesized using a two-step thermal process, shorten the electron-migration path by virtue of their matched and close band positions, thus facilitating carrier separation and increasing photoactivity. In the sensing process of CEA, a sandwiched reaction occurred followed by the smooth implementation of the HCR, accompanied by the introduction of a huge amount of CuS NPs on the photoelectrode surface. These captured CuS NPs increased the consumption of electron donors (ascorbic acid, AA) and excitation light energy and also impeded the movement of AA toward the electrode, which synergistically led to an obvious decrease in photocurrent. Under optimum conditions, the as-designed aptasensor exhibited satisfactory analytical performance for the target CEA with a dynamic linear range from 0.02 to 40.0 ng mL(-1) and a detection limit of 7.4 pg mL(-1). Besides, this sensor possessed high specificity, good stability, and acceptable accuracy. The current results suggest that our proposed strategy might have broad application prospects in the bioanalysis of disease-related markers and early disease diagnosis.

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GB/T 7714 Zhang, Kangyao , Wang, Kejun , Zhang, Jianhui et al. Co9S8 nanoparticle-functionalized CdS nanoflowers for signal-off photoelectrochemical bioanalysis of carcinoembryonic antigens with hybridization chain reaction [J]. | NEW JOURNAL OF CHEMISTRY , 2023 , 47 (13) : 6275-6281 .
MLA Zhang, Kangyao et al. "Co9S8 nanoparticle-functionalized CdS nanoflowers for signal-off photoelectrochemical bioanalysis of carcinoembryonic antigens with hybridization chain reaction" . | NEW JOURNAL OF CHEMISTRY 47 . 13 (2023) : 6275-6281 .
APA Zhang, Kangyao , Wang, Kejun , Zhang, Jianhui , Tan, Meirong , Xu, Mingdi , Lai, Wenqiang et al. Co9S8 nanoparticle-functionalized CdS nanoflowers for signal-off photoelectrochemical bioanalysis of carcinoembryonic antigens with hybridization chain reaction . | NEW JOURNAL OF CHEMISTRY , 2023 , 47 (13) , 6275-6281 .
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Two-in-one: Portable piezoelectric and plasmonic exciton effect-based co-enhanced photoelectrochemical biosensor for point-of-care testing of low-abundance cancer markers SCIE
期刊论文 | 2022 , 211 | BIOSENSORS & BIOELECTRONICS
WoS CC Cited Count: 13
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Abstract :

In-depth exploration of the local surface plasmon resonance and piezoelectric effects associated with metal can help develop efficient biosensors. Here, we presented for the first time the localized surface plasmon resonance (LSPR) and piezoelectric effects co-enhance the construction of an efficient intra-body phase electric field for the construction of efficient photoelectrochemical (PEC) biosensors. Briefly, the LSPR enhancement and piezoelectric enhancement effects between Ag nanoparticles and the piezoelectric material NaNbO3 were investigated in a PEC biosensor system under the excitation of portable UV light. Notably, the simplified treatment of the basic building blocks of the PEC sensor, including a handheld UV flashlight instead of a physical excitation light source and a digital multimeter instead of an electrochemical workstation. The capture and immunoincubation process of target PSA occurs on separated microtiter plates and hydrogen peroxide, generated by enzyme-linked immunization, induces the directional separation of electrons and holes in the composite heterogeneous material under the excitation of light. The coupling with a digital multimeter allows for real-time monitoring of photo currents. Further, the effect of Ag deposition on piezoelectric perovskite NaNbO3 was obtained by density functional theory (DFT) calculations. Impressively, under optimized conditions, the system exhibits an ultra-wide linear range and ultra-low detection limits for the target PSA. The system is also comparable to commercially available ELISA kits at the 95% confidence level. This work provides a novel idea of enhanced PEC biosensor for rapid and accurate detection of cancer-related proteins.

Keyword :

Ag nanoparticles Ag nanoparticles NaNbO3 perovskite NaNbO3 perovskite Photoelectrochemical immunoassay Photoelectrochemical immunoassay Prostate-specific antigen Prostate-specific antigen

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GB/T 7714 Xu, Mingdi , Lin, Lang , Jin, Guixiao et al. Two-in-one: Portable piezoelectric and plasmonic exciton effect-based co-enhanced photoelectrochemical biosensor for point-of-care testing of low-abundance cancer markers [J]. | BIOSENSORS & BIOELECTRONICS , 2022 , 211 .
MLA Xu, Mingdi et al. "Two-in-one: Portable piezoelectric and plasmonic exciton effect-based co-enhanced photoelectrochemical biosensor for point-of-care testing of low-abundance cancer markers" . | BIOSENSORS & BIOELECTRONICS 211 (2022) .
APA Xu, Mingdi , Lin, Lang , Jin, Guixiao , Lin, Youxiu , Zhang, Kangyao . Two-in-one: Portable piezoelectric and plasmonic exciton effect-based co-enhanced photoelectrochemical biosensor for point-of-care testing of low-abundance cancer markers . | BIOSENSORS & BIOELECTRONICS , 2022 , 211 .
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Plasmonic enhanced photoelectrochemical aptasensor with D-A F8BT/g-C3N4 heterojunction and AuNPs on a 3D-printed device SCIE
期刊论文 | 2020 , 310 | SENSORS AND ACTUATORS B-CHEMICAL
WoS CC Cited Count: 81
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Abstract :

D-A F8BT/g-C3N4 type II heterojunction nanocomposite was employed as photoelectrode material for photoelectrochemical (PEC) aptasensor based on rolling circle amplification (RCA) with the assistance of 3D-printed device for carcinoembryonic antigen (CEA) detection. D-A type F8BT improved photocurrent response of g-C3N4 nanosheet after forming D-A F8BT/g-C3N4 type II heterojunction which effectively constructed built-in electric field and reduced electron-hole recombination. With the introduction of DNA-AuNP probes by pi-stacking interaction, the local plasmon resonance (LSPR) of AuNPs enhanced local electric field, promoted the generation of electron-hole and further improved photocurrent response. When target CEA was in presence of sensing platform, sandwich construction was formed between two kinds of CEA aptamers and CEA on magnetic beads, triggering the RCA reaction to produce repeated sequences. Partial sequences of complementary-DNA in combination with RCA results was digested by Exo III enzyme to release signal-DNA, detaching DNA-AuNP probes from the surface of the F8BT/g-C3N4 by complementation, causing the attenuation of LSPR and the decrease of photocurrent response. Combing with 3D-printed device, this PEC aptasensor exhibited a linear response to CEA from 0.02 ng mL(-1) to 50 ng mL(-1) with detection limit of 6.7 pg mL(-1), contributing to develop all organic polymer semiconductors as photoelectric materials in PEC study.

Keyword :

3D-printed device 3D-printed device D-A F8BT/g-C3N4 nanocomposites D-A F8BT/g-C3N4 nanocomposites Local surface plasmon resonance Local surface plasmon resonance Photoelectrochemical aptasensor Photoelectrochemical aptasensor Rolling circle amplification Rolling circle amplification Type II heterojunction Type II heterojunction

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GB/T 7714 Lv, Shuzhen , Zhang, Kangyao , Zhou, Qian et al. Plasmonic enhanced photoelectrochemical aptasensor with D-A F8BT/g-C3N4 heterojunction and AuNPs on a 3D-printed device [J]. | SENSORS AND ACTUATORS B-CHEMICAL , 2020 , 310 .
MLA Lv, Shuzhen et al. "Plasmonic enhanced photoelectrochemical aptasensor with D-A F8BT/g-C3N4 heterojunction and AuNPs on a 3D-printed device" . | SENSORS AND ACTUATORS B-CHEMICAL 310 (2020) .
APA Lv, Shuzhen , Zhang, Kangyao , Zhou, Qian , Tang, Dianping . Plasmonic enhanced photoelectrochemical aptasensor with D-A F8BT/g-C3N4 heterojunction and AuNPs on a 3D-printed device . | SENSORS AND ACTUATORS B-CHEMICAL , 2020 , 310 .
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CoOOH nanosheets-coated g-C3N4/CuInS2 nanohybrids for photoelectrochemical biosensor of carcinoembryonic antigen coupling hybridization chain reaction with etching reaction SCIE
期刊论文 | 2020 , 307 | SENSORS AND ACTUATORS B-CHEMICAL
WoS CC Cited Count: 225
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Abstract :

A signal-on photoelectrochemical (PEC) biosensor was successfully established for the sensitive monitoring of carcinoembryonic antigen (CEA) by using copper indium disulfide-sensitized graphitic-like carbon nitride (g-C3N4/CuInS2) as the photosensitive material and cobalt oxyhydroxide (CoOOH) as the light-blocking material, coupling target-triggered hybridization chain reaction (HCR) with hydrolysate-induced dissolution/etching of CoOOH nanosheets. Initially, a sandwiched reaction occurred between capture aptamer-conjugated magnetic bead and trigger aptamer in the presence of CEA. Then, the carried trigger aptamer initiated HCR between two hairpin sequences to produce long double-helix strand for capturing alkaline phosphatase. The generated ascorbic acid reduced/etched CoOOH nanosheets into divalent cobalt ions, which decreased the amount and thickness of CoOOH and exposed the underlying g-C3N4/CuInS2, thus leading to a distinct increase in the photocurrent. Under optimum conditions, PEC sensor showed high sensitivity toward CEA with a dynamic range of 0.02-40 ng mL(-1) and a detection limit of 5.2 pg mL(-1). Also, it possessed favorable selectivity, high stability as well as good precision. The accuracy of PEC approach was well consistent with commercial CEA ELISA kit. These exceptional analytical performances of PEC biosensor indicated that it might have a broad application prospect in the diagnosis of CEA.

Keyword :

Carbon nitride Carbon nitride Cobalt oxyhydroxide nanosheets Cobalt oxyhydroxide nanosheets Copper indium sulfide Copper indium sulfide Etching reaction Etching reaction Hybridization chain reaction Hybridization chain reaction Photoelectrochemical sensor Photoelectrochemical sensor

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GB/T 7714 Zhang, Kangyao , Lv, Shuzhen , Zhou, Qian et al. CoOOH nanosheets-coated g-C3N4/CuInS2 nanohybrids for photoelectrochemical biosensor of carcinoembryonic antigen coupling hybridization chain reaction with etching reaction [J]. | SENSORS AND ACTUATORS B-CHEMICAL , 2020 , 307 .
MLA Zhang, Kangyao et al. "CoOOH nanosheets-coated g-C3N4/CuInS2 nanohybrids for photoelectrochemical biosensor of carcinoembryonic antigen coupling hybridization chain reaction with etching reaction" . | SENSORS AND ACTUATORS B-CHEMICAL 307 (2020) .
APA Zhang, Kangyao , Lv, Shuzhen , Zhou, Qian , Tang, Dianping . CoOOH nanosheets-coated g-C3N4/CuInS2 nanohybrids for photoelectrochemical biosensor of carcinoembryonic antigen coupling hybridization chain reaction with etching reaction . | SENSORS AND ACTUATORS B-CHEMICAL , 2020 , 307 .
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ZIF-8-Assisted NaYF4:Yb,Tm@ZnO Converter with Exonuclease III-Powered DNA Walker for Near-Infrared Light Responsive Biosensor SCIE
期刊论文 | 2020 , 92 (1) , 1470-1476 | ANALYTICAL CHEMISTRY
WoS CC Cited Count: 398
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This work reports a ZIF-8 (ZIF: Zeolitic Imidazolate Framework)-assisted NaYF4:Yb,Tm@ZnO upconverter for the photoelectrochemical (PEC) biosensing of carcinoembryonic antigen (CEA) under near-infrared (NIR) irradiation on a homemade 3D-printed device with DNA walker-based amplification strategy. The composite photosensitive material NaYF4:Yb,Tm@ZnO, as converter to transfer NIR import to photocurrent output, was driven from annealed NaYF4:Yb,Tm@ZIF-8. Yb3+ and Tm3+-codoped NaYF4 (NaYF4:Yb,Tm) converted NIR excitation into UV emission, matching with the absorption of ZnO for in situ excitation to generate the photocurrent. Upon target CEA introduction, the swing arm of DNA walker including the sequence of CEA aptamer carried out the sandwiched bioassembly with CEA capture aptamer on the G-rich anchorage DNA tracks-functionalized magnetic beads. Thereafter, DNA walker was triggered, and the swing arm DNA was captured by the G-rich anchorage DNA according to partly complementary pairing and Exonuclease III (Exo III) consumed anchorage DNA by a burnt-bridge mechanism to go into the next cycle. The released guanine (G) bases from DNA walker enhanced the photocurrent response on a miniature homemade 3D-printed device consisting of the detection cell, dark box, and light platform. Under optimal conditions, NaYF4:Yb,Tm@ZnO-based NIR light-driven PEC biosensor presented high sensitivity and selectivity for CEA sensing with a detection limit of 0.032 ng mL(-1). Importantly, our strategy provides a new horizon for the development of NIR-based PEC biosensors in the aspect of developing MOF-derived photoelectric materials, flexible design of a 3D-printed device, and effective signal amplification mode.

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GB/T 7714 Lv, Shuzhen , Zhang, Kangyao , Zhu, Ling et al. ZIF-8-Assisted NaYF4:Yb,Tm@ZnO Converter with Exonuclease III-Powered DNA Walker for Near-Infrared Light Responsive Biosensor [J]. | ANALYTICAL CHEMISTRY , 2020 , 92 (1) : 1470-1476 .
MLA Lv, Shuzhen et al. "ZIF-8-Assisted NaYF4:Yb,Tm@ZnO Converter with Exonuclease III-Powered DNA Walker for Near-Infrared Light Responsive Biosensor" . | ANALYTICAL CHEMISTRY 92 . 1 (2020) : 1470-1476 .
APA Lv, Shuzhen , Zhang, Kangyao , Zhu, Ling , Tang, Dianping . ZIF-8-Assisted NaYF4:Yb,Tm@ZnO Converter with Exonuclease III-Powered DNA Walker for Near-Infrared Light Responsive Biosensor . | ANALYTICAL CHEMISTRY , 2020 , 92 (1) , 1470-1476 .
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A new visual immunoassay for prostate-specific antigen using near-infrared excited CuxS nanocrystals and imaging on a smartphone SCIE
期刊论文 | 2019 , 144 (12) , 3716-3720 | ANALYST
WoS CC Cited Count: 27
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A photothermal immune-imaging assay was innovatively designed for the visual quantitative detection of cancer biomarkers by coupling CuxS nanocrystals with a portable infrared thermal imager on a smartphone. The rolling circle amplification (RCA) technique was used for the formation of a CuxS nanocrystal concatemer, thus opening up new territories in immunoassay development.

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GB/T 7714 Lv, Shuzhen , Zhang, Kangyao , Tang, Dianping . A new visual immunoassay for prostate-specific antigen using near-infrared excited CuxS nanocrystals and imaging on a smartphone [J]. | ANALYST , 2019 , 144 (12) : 3716-3720 .
MLA Lv, Shuzhen et al. "A new visual immunoassay for prostate-specific antigen using near-infrared excited CuxS nanocrystals and imaging on a smartphone" . | ANALYST 144 . 12 (2019) : 3716-3720 .
APA Lv, Shuzhen , Zhang, Kangyao , Tang, Dianping . A new visual immunoassay for prostate-specific antigen using near-infrared excited CuxS nanocrystals and imaging on a smartphone . | ANALYST , 2019 , 144 (12) , 3716-3720 .
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A 3D printing-based portable photoelectrochemical sensing device using a digital multimeter SCIE
期刊论文 | 2019 , 144 (18) , 5389-5393 | ANALYST
WoS CC Cited Count: 13
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Abstract :

A new enzyme-free and portable photoelectrochemical sensing method based on a homemade three-dimensional (3D) printing device was developed for accurate monitoring of a low-abundance cancer biomarker (carcinoembryonic antigen, CEA, was chosen as a model analyte in this work), coupling glucose-encapsulated liposomes with a digital multimeter readout.

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GB/T 7714 Zhang, Kangyao , Lv, Shuzhen , Tang, Dianping . A 3D printing-based portable photoelectrochemical sensing device using a digital multimeter [J]. | ANALYST , 2019 , 144 (18) : 5389-5393 .
MLA Zhang, Kangyao et al. "A 3D printing-based portable photoelectrochemical sensing device using a digital multimeter" . | ANALYST 144 . 18 (2019) : 5389-5393 .
APA Zhang, Kangyao , Lv, Shuzhen , Tang, Dianping . A 3D printing-based portable photoelectrochemical sensing device using a digital multimeter . | ANALYST , 2019 , 144 (18) , 5389-5393 .
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Novel 3D Printed Device for Dual-Signaling Ratiometric Photoelectrochemical Readout of Biomarker Using lambda-Exonuclease-Assisted Recycling Amplification SCIE
期刊论文 | 2019 , 91 (15) , 10049-10055 | ANALYTICAL CHEMISTRY
WoS CC Cited Count: 70
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Abstract :

A ratiometric photoelectrochemical (PEC) sensing strategy was proposed for monitoring of carcinoembryonic antigen (CEA) based on a homemade 3D printing device with dual-working photoelectrodes (PE1 and PE2), coupling lambda-exonuclease (lambda-Exo)-assisted recycling amplification with CdS quantum dots. Gold nanoparticles-functionalized ZnO nanorods were utilized as PEC substrate for generating initial photocurrent and immobilizing DNA probe. Upon incubation of target with DNA trigger/CEA aptamer-modified magnetic bead (tri/apt-MB), DNA trigger dissociated from magnetic bead and then hybridized with capture probe (cp) on PE1 or opened hairpin probe (hp) on PE2 to form double-stranded DNA (dsDNA). The exonuclease could recognize and cleave two newly generated dsDNA, leading to the release of trigger. The free trigger strand continued to hybridize with the remaining cp/hp, which were cleaved by lambda-Exo, and then trigger was released again and restarted next recycle with the lambda-Exo. After digestion of lambda-Exo, the number of capture probes on PE1 was reduced, and many short DNA fragments were produced on PE2, thereby resulting in the decreasing CdS QDs on PE1 and the increasing CdS QDs on PE2. As a result, it was observed that the ratio value of photocurrents (PE1/PE2) significantly decreased with the increasing CEA. Under optimum conditions, the sensing method showed a good linear relationship toward CEA within the dynamic range of 0.02-10 ng mL(-1) and a detection limit of 6.0 pg mL(-1). Moreover, the ratiometric PEC sensor exhibited good reproducibility, satisfying stability, and remarkable anti-interference performance, which suggests its promising application prospect to detect target CEA.

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GB/T 7714 Zhang, Kangyao , Lv, Shuzhen , Tang, Dianping . Novel 3D Printed Device for Dual-Signaling Ratiometric Photoelectrochemical Readout of Biomarker Using lambda-Exonuclease-Assisted Recycling Amplification [J]. | ANALYTICAL CHEMISTRY , 2019 , 91 (15) : 10049-10055 .
MLA Zhang, Kangyao et al. "Novel 3D Printed Device for Dual-Signaling Ratiometric Photoelectrochemical Readout of Biomarker Using lambda-Exonuclease-Assisted Recycling Amplification" . | ANALYTICAL CHEMISTRY 91 . 15 (2019) : 10049-10055 .
APA Zhang, Kangyao , Lv, Shuzhen , Tang, Dianping . Novel 3D Printed Device for Dual-Signaling Ratiometric Photoelectrochemical Readout of Biomarker Using lambda-Exonuclease-Assisted Recycling Amplification . | ANALYTICAL CHEMISTRY , 2019 , 91 (15) , 10049-10055 .
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H-2-Based Electrochemical Biosensor with Pd Nanowires@ZIF-67 Molecular Sieve Bilayered Sensing Interface for Immunoassay SCIE
期刊论文 | 2019 , 91 (18) , 12055-12062 | ANALYTICAL CHEMISTRY
WoS CC Cited Count: 180
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With the introduction of gas-based contactless electrochemical biosensors lies the prospects of separating the sensing interface from the bioassembly platform, enhancing stability, and exploring signal transduction mechanism, all intimately linking to development of immunoassay. Herein, we report on a H-2-based electrochemical biosensor whose signals derived from the chemical signal transduction between a H-2 and Pd nanowires@ZIF-67 (ZIF: Zeolitic Imidazolate Frameworks) bilayered sensing interface for immunoassay. Dendritic Pt nanoparticles (DPNs) conjugated on the detection antibody were introduced on the interface of a magnetic microsphere according to an immune sandwich assembly between the antigen and antibody. H-2 as a bridge originates from DPNs catalyzing NH3BH3 and links biological signals to electrical signals by reacting with Pd nanowires. Nevertheless, the response of Pd nanowires being extremely effected by O-2 in air due to the competitive adsorption on the surface of Pd nanostructures as well as the reaction between chemisorbed O (Pd-O) and adsorbed dihydrogen lead to a decrease in H absorption into PdHx and poor sensing responses under low target concentration. Porous ZIF-67 (window aperture 0.331 nm) as a molecular sieve self-assembling on the surface of the Pd nanowires film could easily permeate H-2 (kinetic diameter of 0.289 nm), while interferential O-2 (kinetic diameter of 0.346 nm) has difficultly passing through the ZIF-67 layer to contact Pd nanowires and achieves a response of a lower concentration target as well as faster response rate. Under optimal conditions, H-2-based electrochemical biosensors exhibit great response toward target alpha-fetoprotein (AFP) within a dynamic working range of 0.1-50 ng mL(-1) at a detection limit of 0.04 ng mL(-1). Our strategy provides a reusable sensing interface, high specificity, and acceptable accuracy for the immunoassay. In addition, it also expands a promising platform for application as a molecular sieve in electrochemical biosensors.

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GB/T 7714 Lv, Shuzhen , Zhang, Kangyao , Zhu, Ling et al. H-2-Based Electrochemical Biosensor with Pd Nanowires@ZIF-67 Molecular Sieve Bilayered Sensing Interface for Immunoassay [J]. | ANALYTICAL CHEMISTRY , 2019 , 91 (18) : 12055-12062 .
MLA Lv, Shuzhen et al. "H-2-Based Electrochemical Biosensor with Pd Nanowires@ZIF-67 Molecular Sieve Bilayered Sensing Interface for Immunoassay" . | ANALYTICAL CHEMISTRY 91 . 18 (2019) : 12055-12062 .
APA Lv, Shuzhen , Zhang, Kangyao , Zhu, Ling , Tang, Dianping , Niessner, Reinhard , Knopp, Dietmar . H-2-Based Electrochemical Biosensor with Pd Nanowires@ZIF-67 Molecular Sieve Bilayered Sensing Interface for Immunoassay . | ANALYTICAL CHEMISTRY , 2019 , 91 (18) , 12055-12062 .
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Photoelectrochemical biosensing of disease marker on p-type Cu-doped Zn0.3Cd0.7S based on RCA and exonuclease III amplification SCIE
期刊论文 | 2018 , 117 , 590-596 | BIOSENSORS & BIOELECTRONICS
WoS CC Cited Count: 58
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In this work, a new "signal-on" split-type photoelectrochemical (PEC) sensing platform for prostate-specific antigen (PSA) detection was successfully constructed using p-type Cu-doped Zn0.3Cd0.7S as the photosensitive semiconductor material and target-triggered rolling circle amplification (RCA) for signal amplification. The signal derived from Cu-doped Zn0.3Cd0.7S was amplified by hemin/G-quadruplex. Upon target PSA introduction, the aptamer-primer probe (apt-pri) was captured by capture antibody-conjugated magnetic bead (MB-mAb) to form the sandwiched MB-mAb/PSA/apt-pri. The complex could initiate the RCA reaction to produce a long single-stranded DNA that provided binding sites for G-rich DNA and to form long single-stranded DNA/G-quadruplex/hemin. Upon the addition of exonuclease III (Exo III), the hemin/G-quadruplex immobilized on the RCA long product could be released by the digestion of Exo III. The hemin/G-quadruplex complexes in this study were used as efficient electron acceptors to neutralize the photoelectrons generated from the semiconductor and hindered the recombination of charges, thus enhancing the photocurrent. Under the optimum conditions, the developed sensing system displayed a good analytical performance with a linear range of 0.05-40 ng mL(-1) PSA and a detection limit of 16.3 pg mL(-1). Furthermore, good selectivity, high anti-interference ability, satisfactory reproducibility, and good accuracy were also achieved. These prominent analytical properties revealed that our strategy might be a potential and reliable tool for the detection of PSA.

Keyword :

Cu-doped Zn0.3Cd0.7S Cu-doped Zn0.3Cd0.7S Exonuclease III Exonuclease III Hemin/G-quadruplex Hemin/G-quadruplex Photoelectrochemical biosensor Photoelectrochemical biosensor Rolling circle amplification Rolling circle amplification

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GB/T 7714 Zhang, Kangyao , Lv, Shuzhen , Lu, Minghua et al. Photoelectrochemical biosensing of disease marker on p-type Cu-doped Zn0.3Cd0.7S based on RCA and exonuclease III amplification [J]. | BIOSENSORS & BIOELECTRONICS , 2018 , 117 : 590-596 .
MLA Zhang, Kangyao et al. "Photoelectrochemical biosensing of disease marker on p-type Cu-doped Zn0.3Cd0.7S based on RCA and exonuclease III amplification" . | BIOSENSORS & BIOELECTRONICS 117 (2018) : 590-596 .
APA Zhang, Kangyao , Lv, Shuzhen , Lu, Minghua , Tang, Dianping . Photoelectrochemical biosensing of disease marker on p-type Cu-doped Zn0.3Cd0.7S based on RCA and exonuclease III amplification . | BIOSENSORS & BIOELECTRONICS , 2018 , 117 , 590-596 .
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