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Article: Shrinkable Hydrogel-Enhanced Biomarker Detection with X-ray Fluorescent Nanoparticles.

Zheng, Yiting / Huo, Ruiqing / Su, Ming

2022 Volume 12, Issue 14

Abstract: This paper reports a new method to enhance the sensitivity of nanoparticle-based protein detection with X-ray fluorescence by exploiting the large volume reduction of hydrogel upon dehydration. A carboxylated agarose hydrogel with uniaxial microchannels ... ...

Abstract	This paper reports a new method to enhance the sensitivity of nanoparticle-based protein detection with X-ray fluorescence by exploiting the large volume reduction of hydrogel upon dehydration. A carboxylated agarose hydrogel with uniaxial microchannels is used to allow rapid diffusion of nanoparticles and biomolecules into the hydrogel and water molecules out of the hydrogel. Carboxylated hydrogels are modified to capture protein biomarkers and X-ray fluorescence nanoparticles (iron oxide nanoparticles) are modified with antibodies that are specific to protein biomarkers. The presence of protein biomarkers in solution binds the nanoparticles on the hydrogel channels. The dehydration of hydrogels leads to a size reduction of over 80 times, which increases the number of nanoparticles in the interaction volume of the primary X-ray beam and the intensity of characteristic X-ray fluorescence signal. A detection limit of 2 μg/mL for protein detection has been established by determining the number of nanoparticles using X-ray fluorescence.
Language	English
Publishing date	2022-07-14
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662255-5
ISSN	2079-4991
ISSN	2079-4991
DOI	10.3390/nano12142412
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Enhanced Turn-On Fluorescence Detection of Aqueous Lead Ions with Size-Shrinkable Hydrogels.

Zheng, Yiting / Li, Qingxuan / Wang, Chenfei / Su, Ming

ACS omega

2021 Volume 6, Issue 18, Page(s) 11897–11901

Abstract: Highly sensitive detection of lead ions in water is of importance. This paper reports a new method to enhance the sensitivity of fluorescence detection of aqueous lead ions by exploiting the large volume reduction of hydrogels upon dehydration. Rhodamine- ...

Abstract	Highly sensitive detection of lead ions in water is of importance. This paper reports a new method to enhance the sensitivity of fluorescence detection of aqueous lead ions by exploiting the large volume reduction of hydrogels upon dehydration. Rhodamine-derived prefluorescent probes with high selectivity to lead ions are grafted on a carboxylated agarose hydrogel. Upon binding low-concentration lead ions, fluorescence emission is turned on. The dehydration of the hydrogel leads to a size reduction of over 40 times and an enhancement of fluorescence of 10 times at a lead-ion concentration of 10
Language	English
Publishing date	2021-04-27
Publishing country	United States
Document type	Journal Article
ISSN	2470-1343
ISSN (online)	2470-1343
DOI	10.1021/acsomega.1c00150
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Targeting Annexin A1 as a Druggable Player to Enhance the Anti-Tumor Role of Honokiol in Colon Cancer through Autophagic Pathway.

Wang, Xi / Shao, Gang / Hong, Xiangyu / Shi, Yue / Zheng, Yiting / Yu, Yucheng / Fu, Caiyun

Pharmaceuticals (Basel, Switzerland)

2023 Volume 16, Issue 1

Abstract: Colon cancer is one of the most common digestive tract malignancies, having the second highest mortality rate among all tumors, with a five-year survival of advanced patients of only 10%. Efficient, targeted drugs are still lacking in treating colon ... ...

Abstract	Colon cancer is one of the most common digestive tract malignancies, having the second highest mortality rate among all tumors, with a five-year survival of advanced patients of only 10%. Efficient, targeted drugs are still lacking in treating colon cancer, so it is urgent to explore novel druggable targets. Here, we demonstrated that annexin A1 (ANXA1) was overexpressed in tumors of 50% of colon cancer patients, and ANXA1 overexpression was significantly negatively correlated with the poor prognosis of colon cancer. ANXA1 promoted the abnormal proliferation of colon cancer cells in vitro and in vivo by regulating the cell cycle, while the knockdown of ANXA1 almost totally inhibited the growth of colon cancer cells in vivo. Furthermore, ANXA1 antagonized the autophagic death of honokiol in colon cancer cells via stabilizing mitochondrial reactive oxygen species. Based on these results, we speculated that ANXA1 might be a druggable target to control colon cancer and overcome drug resistance.
Language	English
Publishing date	2023-01-01
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2193542-7
ISSN	1424-8247
ISSN	1424-8247
DOI	10.3390/ph16010070
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Inhibiting Interfacial Diffusion in Heterojunction Perovskite Solar Cells by Replacing Low-Dimensional Perovskite with Uniformly Anchored Quaternized Polystyrene.

Tian, Congcong / Sun, Anxin / Liang, Jianghu / Zhang, Zhanfei / Zheng, Yiting / Wu, Xueyun / Liu, Yuan / Tang, Chen / Chen, Chun-Chao

Small (Weinheim an der Bergstrasse, Germany)

2023 Volume 19, Issue 32, Page(s) e2301091

Abstract: Surface heterojunction has been regarded as an effective method to improve the device efficiency of perovskite solar cells. Nevertheless, the durability of different heterojunction under thermal stress is rarely investigated and compared. In this work, ... ...

Abstract	Surface heterojunction has been regarded as an effective method to improve the device efficiency of perovskite solar cells. Nevertheless, the durability of different heterojunction under thermal stress is rarely investigated and compared. In this work, benzylammonium chloride and benzyltrimethylammonium chloride are utilized to construct 3D/2D and 3D/1D heterojunctions, respectively. A quaternized polystyrene is synthesized to construct a three-dimensional perovskite/amorphous ionic polymer (3D/AIP) heterojunction. Due to the migration and volatility of organic cations, severe interfacial diffusion is found among 3D/2D and 3D/1D heterojunctions, in which the quaternary ammonium cations in the 1D structure are less volatile and mobile than the primary ammonium cations in the 2D structure. 3D/AIP heterojunction remains intact under thermal stress due to the strong ionic bond anchoring at the interface and the ultra-high molecular weight of AIP. Furthermore, the dipole layer formed by AIP can further reduce the voltage loss caused by nonradiative recombination at the interface by 0.088 V. Therefore, the devices based on the 3D/AIP heterojunction achieve a champion power conversion efficiency of 24.27% and maintain 90% of its initial efficiency after either thermal aging for 400 h or wet aging for 3000 h, showing a great promise for polymer/perovskite heterojunction towards real applications.
Language	English
Publishing date	2023-04-17
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2168935-0
ISSN	1613-6829 ; 1613-6810
ISSN (online)	1613-6829
ISSN	1613-6810
DOI	10.1002/smll.202301091
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Article ; Online: Structural Fusion Yields Guest Acceptors that Enable Ternary Organic Solar Cells with 18.77 % Efficiency.

Meng, Fei / Qin, Ying / Zheng, Yiting / Zhao, Zhihan / Sun, Yanna / Yang, Yingguo / Gao, Ke / Zhao, Dongbing

Angewandte Chemie (International ed. in English)

2023 Volume 62, Issue 11, Page(s) e202217173

Abstract: The design and selection of a suitable guest acceptor are particularly important for improving the photovoltaic performance of ternary organic solar cells (OSCs). Herein, we designed and successfully synthesized two asymmetric silicon-oxygen bridged ... ...

Abstract	The design and selection of a suitable guest acceptor are particularly important for improving the photovoltaic performance of ternary organic solar cells (OSCs). Herein, we designed and successfully synthesized two asymmetric silicon-oxygen bridged guest acceptors, which featured distinct blue-shifted absorption, upshifted lowest unoccupied molecular orbital energy levels, and larger dipole moments than symmetric silicon-oxygen-bridged acceptor. Ternary devices with the incorporation of 14.2 wt % these two asymmetric guest acceptors exhibited excellent performance with power conversion efficiencies (PCEs) of 18.22 % and 18.77 %, respectively. Our success in precise control of material properties via structural fusion of five-membered carbon linkages and six-membered silicon-oxygen connection at the central electron-donating core unit of fused-ring electron acceptors can attract considerable attention and bring new vigor and vitality for developing new materials toward more efficient OSCs.
Language	English
Publishing date	2023-02-07
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2011836-3
ISSN	1521-3773 ; 1433-7851
ISSN (online)	1521-3773
ISSN	1433-7851
DOI	10.1002/anie.202217173
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Article: Accelerating the dissolution kinetics of iodine with a cosolvent for a high-current zinc–iodine flow battery

Zhao, Yunhe / Li, Yang / Mao, Jiatao / Yi, Zhibin / Mubarak, Nauman / Zheng, Yiting / Kim, Jang-Kyo / Chen, Qing

Journal of materials chemistry A. 2022 July 5, v. 10, no. 26

2022

Abstract: The high reduction potential and the abundance of iodine have prompted its use in the positive electrolytes of aqueous flow batteries, where the transition between highly soluble iodide (I⁻) and triiodide (I₃⁻) may give rise to superior rate-performance. ...

Abstract	The high reduction potential and the abundance of iodine have prompted its use in the positive electrolytes of aqueous flow batteries, where the transition between highly soluble iodide (I⁻) and triiodide (I₃⁻) may give rise to superior rate-performance. Yet, the operating currents of Zn–I₂ flow batteries remain low, for which the elusive kinetics of the poorly soluble intermediate, iodine (I₂), is responsible. With cyclic voltammetry and chronoamperometry, we confirm that solid iodine passivates the carbon electrode, leading to an oscillating current even in a highly concentrated I⁻ solution. UV-Vis spectroscopy and an interface-controlled dissolution model are used to measure the rate constant of the transition from I₂ to I₃⁻ to be ∼10⁻⁶ mol (cm⁻² s⁻¹), which agrees with the steady-state current revealed by chronoamperometry and corroborates the current-limiting kinetics. To boost the kinetics, we screen common organic solvents for a cosolvent that can better solvate I₂ and find that the addition of 7.5 vol% acetonitrile increases the rate constant by an order of magnitude and the current by more than six times. Calculations using density functional theory reveal the role of the cosolvent in weakening the interaction between iodine and the electrode surface. When employed in a Zn–I₂ flow battery, the cosolvent enables a high charging current of over 100 mA cm⁻², which is stable for more than 170 cycles, and is promising for high-performance energy storage at an affordable cost.
Keywords	acetonitrile ; batteries ; carbon electrodes ; chemistry ; density functional theory ; energy ; iodides ; iodine ; models ; ultraviolet-visible spectroscopy ; voltammetry
Language	English
Dates of publication	2022-0705
Size	p. 14090-14097.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/d2ta03195g
Database	NAL-Catalogue (AGRICOLA)

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Article: An All-Organic Aqueous Battery Powered by Adsorbed Quinone

Xu, Yuan / Chen, Qing / Wang, Congcheng / Zheng, Yiting

ACS applied materials & interfaces. 2019 June 05, v. 11, no. 26

2019

Abstract: The need for cost-effective, safe energy storage has led to unprecedentedly complex designs of materials and structures to meet stringent requirements. Yet, it remains a question whether we can eventually afford the manufacturing of these new materials ... ...

Abstract	The need for cost-effective, safe energy storage has led to unprecedentedly complex designs of materials and structures to meet stringent requirements. Yet, it remains a question whether we can eventually afford the manufacturing of these new materials and structures at a practical cost. Here, we introduce a new approach toward an all-organic aqueous battery through one-step, solution-phase adsorption. In this battery, two quinone molecules with different redox potentials adsorb onto two porous carbon electrodes to serve as the negative and the positive electrodes. For the negative side, cyclic voltammetry shows a high surface coverage of 66 pmol/cm2 for the adsorbed quinone (anthraquinone-2,7-disulfonate), which enables a stable capacity of 77 mAh/g. The full battery, operating in 1 M sulfuric acid, delivers more than 80% of its capacity at rates of up to 60C, and it retains more than 70% of the capacity after 600 cycles. As the battery adopts the typical build of a supercapacitor, this adsorption-based approach should apply broadly to achieve low-cost, safe storage. The work also provides a quantitative account of the electrochemistry of quinone adsorbed on carbon, which bears significance in the exploitation of quinone molecules in various electrochemical applications.
Keywords	adsorption ; batteries ; carbon ; carbon electrodes ; cost effectiveness ; electrochemistry ; energy ; quinones ; redox potential ; sulfonates ; sulfuric acid
Language	English
Dates of publication	2019-0605
Size	p. 23222-23228.
Publishing place	American Chemical Society
Document type	Article
ISSN	1944-8252
DOI	10.1021/acsami.9b05159
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: An All-Organic Aqueous Battery Powered by Adsorbed Quinone.

Xu, Yuan / Zheng, Yiting / Wang, Congcheng / Chen, Qing

ACS applied materials & interfaces

2019 Volume 11, Issue 26, Page(s) 23222–23228

Abstract	The need for cost-effective, safe energy storage has led to unprecedentedly complex designs of materials and structures to meet stringent requirements. Yet, it remains a question whether we can eventually afford the manufacturing of these new materials and structures at a practical cost. Here, we introduce a new approach toward an all-organic aqueous battery through one-step, solution-phase adsorption. In this battery, two quinone molecules with different redox potentials adsorb onto two porous carbon electrodes to serve as the negative and the positive electrodes. For the negative side, cyclic voltammetry shows a high surface coverage of 66 pmol/cm
Language	English
Publishing date	2019-06-18
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.9b05159
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Infiltrated 2D/3D Heterojunction with Tunable Electric Field Landscape for Robust Inverted Perovskite Solar Cells with over 24% Efficiency.

Tang, Chen / Liu, Yuan / Zheng, Yiting / Sun, Anxin / Liang, Jianghu / Wu, Xueyun / Tian, Congcong / Li, Zihao / Chen, Jinling / Cai, Jingyu / Wu, Xiling / Chen, Chun-Chao

Small (Weinheim an der Bergstrasse, Germany)

2024 , Page(s) e2306978

Abstract: In inverted perovskite solar cells, conventional planar 2D/3D perovskite heterojunctions typically exhibit a type-II band alignment, where the electric field tends to drive the electron motion in the opposite direction to the direction of electron ... ...

Abstract	In inverted perovskite solar cells, conventional planar 2D/3D perovskite heterojunctions typically exhibit a type-II band alignment, where the electric field tends to drive the electron motion in the opposite direction to the direction of electron transfer. Here, a 2D/3D gradient heterojunction is developed by allowing the 2D perovskite to infiltrate the 3D perovskite surface along the grain boundaries using the interaction between the organic cation of the 2D perovskite and the pseudohalogen thiocyanate ion (SCN
Language	English
Publishing date	2024-01-09
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2168935-0
ISSN	1613-6829 ; 1613-6810
ISSN (online)	1613-6829
ISSN	1613-6810
DOI	10.1002/smll.202306978
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Article: Hyperspectral Image Enhancement by Two Dimensional Quaternion Valued Singular Spectrum Analysis for Object Recognition

Lin, Yuxin / Ling, Bingo Wing-Kuen / Hu, Lingyue / Zheng, Yiting / Xu, Nuo / Zhou, Xueling / Wang, Xinpeng

Remote Sensing. 2021 Jan. 25, v. 13, no. 3

2021

Abstract: This paper proposes a two dimensional quaternion valued singular spectrum analysis based method for enhancing the hyperspectral image. Here, the enhancement is for performing the object recognition, but neither for improving the visual quality nor ... ...

Abstract	This paper proposes a two dimensional quaternion valued singular spectrum analysis based method for enhancing the hyperspectral image. Here, the enhancement is for performing the object recognition, but neither for improving the visual quality nor suppressing the artifacts. In particular, the two dimensional quaternion valued singular spectrum analysis components are selected in such a way that the ratio of the interclass separation to the intraclass separation of the pixel vectors is maximized. Next, the support vector machine is employed for performing the object recognition. Compared to the conventional two dimensional real valued singular spectrum analysis based method where only the pixels in a color plane is exploited, the two dimensional quaternion valued singular spectrum analysis based method fuses four color planes together for performing the enhancement. Hence, both the spatial information among the pixels in the same color plane and the spectral information among various color planes are exploited. The computer numerical simulation results show that the overall classification accuracy based on our proposed method is higher than the two dimensional real valued singular spectrum analysis based method, the three dimensional singular spectrum analysis based method, the multivariate two dimensional singular spectrum analysis based method, the median filtering based method, the principal component analysis based method, the Tucker decomposition based method and the hybrid spectral convolutional neural network (hybrid SN) based method.
Keywords	color ; computers ; hyperspectral imagery ; neural networks ; principal component analysis ; spatial data ; support vector machines
Language	English
Dates of publication	2021-0125
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2513863-7
ISSN	2072-4292
ISSN	2072-4292
DOI	10.3390/rs13030405
Database	NAL-Catalogue (AGRICOLA)

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