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学者姓名：池毓务
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Abstract ：
Acute myocardial infarction (AMI) is one of the leading causes of human mortality worldwide. In the early stages of AMI, the patient's electrocardiogram (ECG) may not change, so the fast, sensitive, and accurate detection of the specific biomarker of cardiac troponin I (cTnI) is of great importance in the early diagnosis of AMI. In this work, for the first time, electrostatic nanoaggregates of negatively charged Au nanoparticles and positively charged trisbipyridine ruthenium(II) ions (i.e., (-)AuNPs|[Ru(bpy)(3)](2+) ENAs) as novel and signal-amplifying surface-enhanced Raman scattering (SERS) tags were synthesized in an easy and rapid (<3 min) way and applied in the highly sensitive, rapid detection of cTnI in human serum by being combined with an immunochromatographic test strip (ICTS). The synthesized (-)AuNPs|[Ru(bpy)(3)](2+) ENAs exhibited strong SERS activity due to the multiple Raman-active units (three bpy ligands) carried by each [Ru(bpy)(3)](2+) complex ion and abundant hotspots in each SERS tag. The developed (-)AuNPs|[Ru(bpy)(3)](2+) ENAs-based SERS-ICTS has been validated to be applicable in detection of cTnI in human serum with excellent sensing performances, such as fast testing (5 min) and a low detection limit (60 pg/mL). It is envisioned that the developed (-)AuNPs|[Ru(bpy)(3)](2+) ENAs-based SERS-ICTS sensor may have promising applications in point of care testing of various biomarkers in clinic. Additionally, this work may inspire the finding and the application of new types of Raman reporter molecules based on high valent metal-multi ligand coordination compounds like [Ru(bpy)(3)](2+).
Keyword ：
Cardiac troponin I Cardiac troponin I Electrostatic interaction Electrostatic interaction Gold nanoparticle Gold nanoparticle Immunoassay Immunoassay Nanoaggregate Nanoaggregate Raman Raman Test strip Test strip Trisbipyridine ruthenium(II) Trisbipyridine ruthenium(II)
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| GB/T 7714 | Shao, Jiwei , Zhang, Weiwei , Huang, Yun et al. Au Nanoparticles-Trisbipyridine Ruthenium(II) Nanoaggregates as Signal-Amplifying SERS Tags for Immunoassay of cTnI [J]. | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (45) : 61703-61713 . |
| MLA | Shao, Jiwei et al. "Au Nanoparticles-Trisbipyridine Ruthenium(II) Nanoaggregates as Signal-Amplifying SERS Tags for Immunoassay of cTnI" . | ACS APPLIED MATERIALS & INTERFACES 16 . 45 (2024) : 61703-61713 . |
| APA | Shao, Jiwei , Zhang, Weiwei , Huang, Yun , Zheng, Jingcheng , Chi, Yuwu . Au Nanoparticles-Trisbipyridine Ruthenium(II) Nanoaggregates as Signal-Amplifying SERS Tags for Immunoassay of cTnI . | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (45) , 61703-61713 . |
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Excessive ultraviolet (UV) radiation has serious damage to human's health, therefore the development of visible, portable, and wearable sensor for monitoring UV radiation, especially the cumulative UV dosage, is highly desired but full of challenges. Herein, a wearable and flexible UV dosimeter based on photochromic perovskite nanocrystals (PNCs) is designed. The obtained CsPbCl3 PNCs dispersed in dibromomethane (PNCs-DBM) undergo continuous, vivid, and multiple (from very weak purple to blue, cyan, and finally strong green) color change in response to UV radiation. It is demonstrated that the UV-induced degradation of DBM and subsequent anion-exchange reaction between CsPbCl3 and Br-, play a crucial role in the color change of PNCs-DBM. The properties of continuous fluorescence color change and enhanced fluorescence intensity enable the construction of sensitive and visible UV dosimeter. Furthermore, by integrated photochromic PNCs with flexible bracelet or PDMS substrate, a wearable UV sensor or a multi-indicator array for the detection of solar UV dosage is developed. This work may advance the fundamental understanding about photochromic perovskite, and show promising application of perovskite nanomaterials in easily fabricated, low-cost, visualized, and wearable solar UV dosimeter. Traditional photochromic materials may be used to detect UV intensity rather than UV dose due to single color transformation upon sustained UV exposure. The photochromic perovskite-dibromomethane system can undergo continuous, real-time, very wide range and sensitive color change with increasing UV dose, which shows a very promising application of PNCs in developing wearable sensor for detection of solar UV dose. image
Keyword ：
anion-exchange anion-exchange flexible multi-indicator array flexible multi-indicator array photochromic perovskite nanocrystals photochromic perovskite nanocrystals UV dosage UV dosage wearable UV sensor wearable UV sensor
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| GB/T 7714 | Chen, Jie , Sun, Ruifen , Zheng, Jingcheng et al. Photochromic Perovskite Nanocrystals for Ultraviolet Dosimetry [J]. | SMALL , 2024 , 20 (29) . |
| MLA | Chen, Jie et al. "Photochromic Perovskite Nanocrystals for Ultraviolet Dosimetry" . | SMALL 20 . 29 (2024) . |
| APA | Chen, Jie , Sun, Ruifen , Zheng, Jingcheng , Zhang, Weiwei , Huang, Yun , Shao, Jiwei et al. Photochromic Perovskite Nanocrystals for Ultraviolet Dosimetry . | SMALL , 2024 , 20 (29) . |
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Fluorescent immunochromatographic test (FICT) strips have received extensive attention due to their virtue of simple operation, low cost, and a point-of-care (POC) assay. In recent years, people are constantly seeking new labels to improve the sensitivity of immunosensors. Perovskite nanocrystals (PNCs) possess strong fluorescence and a narrow emission peak, making them an excellent choice as a new fluorescent signal label. Herein, we have developed a simple, fast, and environmentally friendly method to synthesize CsPbBr 3 /CsPb 2 Br 5 @SiO 2 with the good water stability and high biocompatibility. These CsPbBr 3 /CsPb 2 Br 5 @SiO 2 have been applied to construct FICT strips. To achieve the quantitative determination of human chorionic gonadotropin (HCG), a lab-made FICT strips detection system was established. The FICT strips had a good linear relationship to HCG in the range of 5 -500 ng/mL, and the detection limit was 2.09 ng/mL. In addition, the recovery results of HCG detection in human urine samples also proved the feasibility of this FICT strips. CsPbBr 3 /CsPb 2 Br 5 @SiO 2 can also be modified with different biomarkers for functionalization, which exhibits a promising application in the development of sensing platform of FICT strips.
Keyword ：
Fluorescent immunochromatographic test Fluorescent immunochromatographic test HCG detection HCG detection Perovskite Perovskite Sensor Sensor strips strips
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| GB/T 7714 | Zheng, Jingcheng , Chen, Jie , Sun, Ruifen et al. A fluorescent immunochromatographic strip based on CsPbBr 3 / CsPb 2 Br 5 @SiO 2 facile encapsulation in pure water for the detection of human chorionic gonadotropin (HCG) antigen [J]. | SENSORS AND ACTUATORS B-CHEMICAL , 2024 , 410 . |
| MLA | Zheng, Jingcheng et al. "A fluorescent immunochromatographic strip based on CsPbBr 3 / CsPb 2 Br 5 @SiO 2 facile encapsulation in pure water for the detection of human chorionic gonadotropin (HCG) antigen" . | SENSORS AND ACTUATORS B-CHEMICAL 410 (2024) . |
| APA | Zheng, Jingcheng , Chen, Jie , Sun, Ruifen , Zhang, Weiwei , Huang, Yun , Shao, Jiwei et al. A fluorescent immunochromatographic strip based on CsPbBr 3 / CsPb 2 Br 5 @SiO 2 facile encapsulation in pure water for the detection of human chorionic gonadotropin (HCG) antigen . | SENSORS AND ACTUATORS B-CHEMICAL , 2024 , 410 . |
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Self-enhanced electrochemiluminescence (ECL) probes have attracted more and more attention in analytical chemistry for their significant simplification of the ECL sensing operation while improving the ECL sensing sensitivity. However, the development and applications of self-enhanced ECL probes are still in their infancy and mainly suffer from the requirement of a complicated synthesis strategy and relatively low self-enhanced ECL activity. In this work, we took advantage of the recently emerged perovskite quantum dots (PQDs) with high optical quantum yields and easy surface engineering to develop a new type of PQD-based self-enhanced ECL system. The long alkyl chain (C-18) diethanolamine (i.e., N-octadecyldiethanolamine (ODA)) with high ECL coreactant activity was selected as a capping ligand to synthesize an ODA-capped PQD self-enhanced ECL probe. The preparation of the coreactant-capped PQDs is as simple as for the ordinary oleylamine (OAm)-capped PQDs, and the obtained ODA-capped PQDs exhibit very strong self-enhanced ECL activity, 82.5 times higher than that of traditional OAm-capped PQDs. Furthermore, the prepared ODA-PQDs have a unique nanostructure (ODA-CsPbBr3@CsPb2Br5), with the highly emissive 3D CsPbBr3 PQD as the core and the water-stable 2D CsPb2Br5 as the shell, which allows ODA-PQDs to be very stable in aqueous media. It is envisioned that the prepared ODA-3D@2D PQDs with the easy preparation method, strong self-enhanced ECL, and excellent water stability have promising applications in ECL sensing.
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| GB/T 7714 | Sun, Ruifen , Xiong, Shuyun , Zhang, Weiwei et al. Highly Active Coreactant-Capped and Water-Stable 3D@2D Core-Shell Perovskite Quantum Dots as a Novel and Strong Self-Enhanced Electrochemiluminescence Probe [J]. | ANALYTICAL CHEMISTRY , 2024 , 96 (14) : 5711-5718 . |
| MLA | Sun, Ruifen et al. "Highly Active Coreactant-Capped and Water-Stable 3D@2D Core-Shell Perovskite Quantum Dots as a Novel and Strong Self-Enhanced Electrochemiluminescence Probe" . | ANALYTICAL CHEMISTRY 96 . 14 (2024) : 5711-5718 . |
| APA | Sun, Ruifen , Xiong, Shuyun , Zhang, Weiwei , Huang, Yun , Zheng, Jingcheng , Shao, Jiwei et al. Highly Active Coreactant-Capped and Water-Stable 3D@2D Core-Shell Perovskite Quantum Dots as a Novel and Strong Self-Enhanced Electrochemiluminescence Probe . | ANALYTICAL CHEMISTRY , 2024 , 96 (14) , 5711-5718 . |
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Recently emerging perovskite nanocrystals (PNCs) are very attractive fluorescence nanomaterials due to their very narrow emission peak, tunable wavelength, and extremely high quantum yield, but their chemosensing, biosensing and bioimaging applications suffer from the poor stability of ordinary PNCs in aqueous media, especially in biological matrices. Recently developed water-stable 2D CsPb2Br5-encapsulated 3D CsPbBr3 PNCs (i.e., CsPbBr3/CsPb2Br5 PNCs) show extremely stable light emission in pure water, but their fluorescence is seriously quenched in aqueous media containing biological molecules due to their chemical reactions. In this work, we used a facile method to encapsulate pure water-stable CsPbBr3/CsPb2Br5 PNCs in water with SiO2 and polyethylene glycol hexadecyl ether (Brij58) into a new kind of biological environment-stable PNCs (CsPbBr3/CsPb2Br5@SiO2-Brij58). The synthesis of the target PNCs can be accomplished in a fast, easy, and green way. The obtained CsPbBr3/CsPb2Br5@SiO2-Brij58 PNCs maintain strong fluorescence emission for a long time, all in pH 7.4 PBS, BSA, and minimum essential medium, exhibiting excellent biological environment stability. Moreover, the developed biological environment-stable PNCs show good biocompatibility and have been successfully used in cell imaging. Overall, the work provides an easy, low-cost, and efficient application of PNCs in bioimaging.
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| GB/T 7714 | Zheng, Jingcheng , Zhang, Weiwei , Huang, Yun et al. Encapsulation of Pure Water-Stable Perovskite Nanocrystals (PNCs) into Biological Environment-Stable PNCs for Cell Imaging [J]. | INORGANIC CHEMISTRY , 2024 , 63 (12) : 5623-5633 . |
| MLA | Zheng, Jingcheng et al. "Encapsulation of Pure Water-Stable Perovskite Nanocrystals (PNCs) into Biological Environment-Stable PNCs for Cell Imaging" . | INORGANIC CHEMISTRY 63 . 12 (2024) : 5623-5633 . |
| APA | Zheng, Jingcheng , Zhang, Weiwei , Huang, Yun , Shao, Jiwei , Khan, Malik Saddam , Chi, Yuwu . Encapsulation of Pure Water-Stable Perovskite Nanocrystals (PNCs) into Biological Environment-Stable PNCs for Cell Imaging . | INORGANIC CHEMISTRY , 2024 , 63 (12) , 5623-5633 . |
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Asrecently emerging nanomaterials, boron nanosheets (BNSs) haveattracted more and more attention in various fields such as supercapacitors,photodetectors, bioimaging, and electrocatalysis due to their advantagesof good biological compatibility, environmental friendliness, andgood electro-optical properties. However, the study and applicationof BNSs in chemical and biological sensing are still in the infantstage, mainly due to the requirement of complicated, high-cost, andtime-consuming preparation strategies. In this work, a new class ofBNSs, namely oxidized-BNSs (i.e., ox-BNSs), were easily and rapidlysynthesized by chemically treating boron powder with diluted HNO3 in a very short time (less than 15 min). The composition,morphology, optical property, and peroxidase mimetic activity of obtainedox-BNSs were investigated in detail. The prepared ox-BNSs were several-layerednanosheets with abundant oxygen-containing groups, emitted blue fluorescence,and possessed good intrinsic peroxidase mimetic activity, based onwhich a sensitive and selective colorimetric sensor was developedfor detection of H2O2 and glucose. The new easypreparation strategy and good sensing performances of the preparedox-BNSs would greatly stimulate the study and application of BNSsin chemo- and biosensing.
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| GB/T 7714 | Sun, Ruifen , Chen, Jie , Zhang, Weiwei et al. Facile Synthesis of Oxidized Boron Nanosheets for Chemo- and Biosensing [J]. | ANALYTICAL CHEMISTRY , 2023 , 95 (30) : 11475-11482 . |
| MLA | Sun, Ruifen et al. "Facile Synthesis of Oxidized Boron Nanosheets for Chemo- and Biosensing" . | ANALYTICAL CHEMISTRY 95 . 30 (2023) : 11475-11482 . |
| APA | Sun, Ruifen , Chen, Jie , Zhang, Weiwei , Huang, Yun , Zheng, Jingcheng , Chi, Yuwu . Facile Synthesis of Oxidized Boron Nanosheets for Chemo- and Biosensing . | ANALYTICAL CHEMISTRY , 2023 , 95 (30) , 11475-11482 . |
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The intrinsic instability of halide perovskites toward to external stimulus, has created a competitive advantage for designing stimuli-responsive materials. However, the external environment tuning reversibly fluorescence emission of perovskite system is still limited. In this work, humidity is verified to act as a new option to modulate the emission properties of mixed-halide perovskite. The perovskite nanocrystals (PNCs) photoirradiated in dichloromethane are easily and stably redispersed in water, and emit bright fluorescence which is quite different from the original. Moreover, the perovskites confined on glass slide can reversibly switch their fluorescence between blue and green colors under moisture. It is demonstrated that the factors of different solubilities of CsCl and CsBr in water, the structural transformation of perovskites and the confine of glass matrix play key roles in the reversible transformation. Finally, the combination of hydrochromic CsPb(BrxCly)(3) and water-resistant CsPb(BrxCly)(3)-polymethyl methacrylate have been applied in advanced anti-counterfeiting, which greatly improves the information security. This work not only give an insight into the effects of humidity on fluorescence and structures of PNCs, but also offer a new class of hydrochromic PNCs materials based on reversible emission transformation for potential application in sensors, anti-counterfeiting and information encryption.
Keyword ：
anti-counterfeiting anti-counterfeiting hydrochromic hydrochromic ion migration ion migration mixed-halide perovskite mixed-halide perovskite photoirradiated perovskite-dichloromethane photoirradiated perovskite-dichloromethane
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| GB/T 7714 | Chen, Jie , Zeng, Yiwen , Sun, Ruifen et al. Hydrochromic Perovskite System with Reversible Blue-Green Color for Advanced Anti-Counterfeiting [J]. | SMALL , 2023 , 19 (33) . |
| MLA | Chen, Jie et al. "Hydrochromic Perovskite System with Reversible Blue-Green Color for Advanced Anti-Counterfeiting" . | SMALL 19 . 33 (2023) . |
| APA | Chen, Jie , Zeng, Yiwen , Sun, Ruifen , Zhang, Weiwei , Huang, Yun , Zheng, Jingcheng et al. Hydrochromic Perovskite System with Reversible Blue-Green Color for Advanced Anti-Counterfeiting . | SMALL , 2023 , 19 (33) . |
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Recently,the newly emerging lead halide perovskite nanocrystals(PNCs) have been intensely researched in many fields, such as light-emittingdiodes (LEDs), solar cells, lasers, and display devices. The extremelyhigh fluorescence quantum yield (near 100%) of PNCs over classic fluorescentmaterials would enable good applications of PNCs in sensing. However,the study on PNCs for bio- and chemical sensing, especially for detectingtargets that exist in aqueous medium, faces great challenges due tothe well-known instability of PNCs in polar solvents, especially water.Although the encapsulation of polymers or inorganic materials canefficiently protect PNCs from decomposition in aqueous solution, thesensing based on the interaction between PNCs and targets is severelyhindered by the compact protection coating at the surfaces of PNCs.In this work, novel water-dispersed PNCs (W-PNCs), i.e., CsPbBr3@CsPb2Br5 PNCs, with strong fluorescenceand excellent water stability were synthesized from OAm-capped CsPbBr3 PNCs by a simple "oil-solid-water"phase transition. The W-PNCs without being encapsulated with compactpolymers or inorganic materials can sensitively and stably sense targetsin the pure water phase via direct chemical reactions. For the firsttime, ion exchanges between PNCs and halide ions and their effectson the fluorescence wavelength of PNCs were investigated in the purewater phase, on the basis of which a new, visualized, selective, andsensitive smartphone-based sensing platform for halide ions has beenestablished by the integration of the conveniently prepared W-PNCnanoprobe and the portable mobile phone. It is envisioned that theuncoated but extremely water-stable and highly fluorescent W-PNCshave promising applications in chemical sensing, biosensing, and bioimagingof targets in aqueous medium.
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| GB/T 7714 | Chen, Jie , Shao, Jiwei , Sun, Ruifen et al. Anion Exchanges of Water-Stable Perovskite Nanocrystals in the Pure Water Phase and Applications in Detecting Halide Ions via a Smartphone-Based Sensing Platform [J]. | ANALYTICAL CHEMISTRY , 2023 , 95 (31) : 11839-11848 . |
| MLA | Chen, Jie et al. "Anion Exchanges of Water-Stable Perovskite Nanocrystals in the Pure Water Phase and Applications in Detecting Halide Ions via a Smartphone-Based Sensing Platform" . | ANALYTICAL CHEMISTRY 95 . 31 (2023) : 11839-11848 . |
| APA | Chen, Jie , Shao, Jiwei , Sun, Ruifen , Zhang, Weiwei , Huang, Yun , Zheng, Jingcheng et al. Anion Exchanges of Water-Stable Perovskite Nanocrystals in the Pure Water Phase and Applications in Detecting Halide Ions via a Smartphone-Based Sensing Platform . | ANALYTICAL CHEMISTRY , 2023 , 95 (31) , 11839-11848 . |
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Oxidized multi-walled carbon nanotube/nano-gold (AuNP-ox-MWCNT) composites with strong electrochemiluminescence (ECL) activity were applied to construct a new ECL immunosensor for the detection of carcinoembryonic antigen (CEA). The immunosensor showed a linear response range of 10-100 ng mL(-1) and detection limit of 0.76 ng mL(-1) (at a signal-to-noise ratio of 3). The as-developed immunosensor exhibited several advantages, including being simple to fabricate and being label free. The results indicated that ox-MWCNTs as a luminescent material have great application potential in analysis.
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| GB/T 7714 | Wang, Ruina , Huang, Yun , Chi, Yuwu . Gold nanoparticles-oxidized multi-walled carbon nanotubes as electrochemiluminescence immunosensors [J]. | ANALYST , 2022 , 147 (13) : 3096-3100 . |
| MLA | Wang, Ruina et al. "Gold nanoparticles-oxidized multi-walled carbon nanotubes as electrochemiluminescence immunosensors" . | ANALYST 147 . 13 (2022) : 3096-3100 . |
| APA | Wang, Ruina , Huang, Yun , Chi, Yuwu . Gold nanoparticles-oxidized multi-walled carbon nanotubes as electrochemiluminescence immunosensors . | ANALYST , 2022 , 147 (13) , 3096-3100 . |
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Glassy carbon (GC) is a well-known carbon material consisting of sp2 hybrid carbon and having fullerene-like nanostructures. GC is recognized to have several advantages, such as good electro-conductivity, low density, gas-and liquid-impermeability, high resistance to graphitization, unusual hardness, and good chemical inertness. However, in our recent investigation, we found for the first time that microsized GC microspheres could be completely transformed into nanostructures by concentrated nitric acid (HNO3) treatment, showing that GC did not have good chemical inertness upon exposure to oxidizing acids such as HNO3. The resultant products contain large amounts of GC-based graphene-like quantum dots, graphene-like oxide nanosheets, and some non-degradable graphite-like nanoparticles. This work not only provides an insight into chemical properties and structures of GC but also suggests an easy and efficient way to obtain strongly fluorescent and electrochemiluminescent carbon-based quantum dots implicated for sensitive chemo-and bio-sensors.
Keyword ：
carbon nanostructures carbon nanostructures etching etching fullerene-like fullerene-like glassy carbon microspheres glassy carbon microspheres graphene graphene onion-like onion-like quantum dots quantum dots
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| GB/T 7714 | Huang, Yun , Tan, Mengjun , Sun, Ruifen et al. Complete Degradation of Glassy Carbon Microspheres into Carbon Nanostructures: Implications for Sensing [J]. | ACS APPLIED NANO MATERIALS , 2022 , 6 (1) : 792-803 . |
| MLA | Huang, Yun et al. "Complete Degradation of Glassy Carbon Microspheres into Carbon Nanostructures: Implications for Sensing" . | ACS APPLIED NANO MATERIALS 6 . 1 (2022) : 792-803 . |
| APA | Huang, Yun , Tan, Mengjun , Sun, Ruifen , Chen, Jie , Zhang, Weiwei , Zheng, Jingcheng et al. Complete Degradation of Glassy Carbon Microspheres into Carbon Nanostructures: Implications for Sensing . | ACS APPLIED NANO MATERIALS , 2022 , 6 (1) , 792-803 . |
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