ENVIRONMENTAL RESEARCH
·
2023
·
IF 8.3
Zhouxiang Zhang,Hassan Karimi-Maleh,Yangpin Wen,Rozhin Darabi,Tao Wu,Pardis Alostani,Masoumeh Ghalkhani
Lead ions (Pb 2+ ), as one of many common heavy metallic environmental pollutants, can cause serious side-effects and result in chronic poisoning to people's health, so it is highly significant to monitor Pb 2+ efficiently and sensitively. Here, we proposed an antimonene@Ti 3 C 2 T x nanohybrid-based electrochemical aptamer sensor (aptasensor) for high sensitive Pb 2+ determination. The sensing platform of nanohybrid was synthesized by ultrasonication, possessing the advantages of both antimonene and Ti 3 C 2 T x , which not only can vastly enlarge the sensing signal of the proposed aptasensor, but also greatly simplified its manufacturing flow, because antimonene can strongly interact with aptamer through noncovalently bound. The surface morphology and microarchitecture of the nanohybrid were perused by several methods such as scanning electron microscope (SEM), energy-dispersive X-ray mapping spectroscopy (EDS), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and atomic force microscope (AFM). Under optimal empirical conditions, the proposed aptasensor exhibited a wide linear correlation of the current signals with the logarithm of C Pb 2+ (Log C Pb 2+ ) over the span from 1 × 10 −12 to 1 × 10 −7 M and provided a trace discernment limit of 3.3 × 10 −13 M. Moreover, the constructed aptasensor displayed superior repeatability, great consistency, eminent selectivity , and beneficial reproducibility, implying its extreme potential application for water quality control and the environmental monitoring of Pb 2+ .
研究领域:
环境科学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Ya Zhang,Ying Xu,Ning Li,Xiaofang Liu,Yi Ma,SiyiYang,Huibo Luo,Changjun Hou,Danqun Huo
Here, we constructed a novel ultra-sensitive electrochemical sensor based on ZIF-67@antimonene (AMNFs) nanocomposites which are based on the first-principles density functional theory the adsorption properties of antimonene on heavy metal ions were studied for simultaneous determination of Cu 2+ , Pb 2+ and Hg 2+ . The ZIF-67@AMNFs was prepared by using ZIF-67 MOF surface loaded with a large amount of antimonene sheet. Its morphology and crystal structure were characterized by Transmission electron microscope (TEM), Energy Dispersive Spectroscopy (EDS), X-ray diffractometry (XRD) and X-ray photoelectron spectroscopy (XPS). Functional ZIF-67@AMNFs due to its unique layered structure, large active surface area, strong adsorption capacity and good electrical conductivity. In addition, the adsorption capacity of the sensor electrode for Cu 2+ , Pb 2+ and Hg 2+ was effectively enhanced. The detection limits of Cu 2+ , Pb 2+ and Hg 2+ were 0.01 pM, 0.042 pM and 0.031 pM, respectively. The determination mechanism of Cu 2+ , Pb 2+ and Hg 2+ was further clarified based on the adsorption properties and electrochemical accumulation of antimonene on metal atoms. It has been successfully applied to the simultaneous determination of Cu 2+ , Pb 2+ and Hg 2+ in rice, sorghum, corn, milk, honey and tea samples, and has good practicability.
研究领域:
食品科学
·
材料科学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
FlatChem
·
2024
·
IF 5.9
Taojian Fan,Shaohui Zhang,Changle Meng,Lingfeng Gao,Li Yan,Hao Wang,Xin Shi,Yanqi Ge,Han Zhang,Junqing Hu
Ultra-sensitive nucleic acid detection is important for rapid prevention of infectious diseases. Recently, clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated (Cas) systems with great target specificity and programmability have demonstrated amazing capabilities in the field of nucleic acid detection. However, most CRISPR/Cas systems-based strategies still rely on pre-amplification of nucleic acid, which limits their clinical application in point of care detection. Here, we designed a novel electrochemical CRISPR/Cas biosensor (called E-Sb CRISPR) that utilizes antimonene nanosheets (Sb NSs) modifications. Due to the strong interaction between Sb NSs and single stranded DNA (ssDNA), E-Sb CRISPR exhibited specific nucleic acid detection capabilities with a detection limit of 100 aM within 35 min. Notably, the sensor showed excellent selectivity to target DNA in serum in the presence of nucleus acid extracted from other viruses. The excellent stability (8 weeks) and reproducibility (50 cycles) of this sensor were observed. By developing microcircuits and software systems, rapid acquisition of detection results on mobile electronic devices is possible. Therefore, the E-Sb CRISPR showed great promise as a scalable nucleic acid detection platform for early diagnosis.
研究领域:
分子生物学
·
医学诊断
·
生物传感技术
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2018
·Vol. 11
·期 4
·1762-1769
·
IF 7.233
Guangju Zhang,Xian Tang,Xing Fu,Weicheng Chen,Babar Shabbir,Han Zhang,Qiang Liu,Mali Gong
A new derivative of antimonene named fluorinated antimonene was synthesized using the method of ionic liquid-assisted electrochemical exfoliation and synchronous fluorination. Passive Q-switched pulses were produced from a Nd:LuAG laser with fluorinated antimonene, having a pulse width of 326.7 ns and a repetition rate of 733.1 kHz demonstrating its potential application as a saturable absorber. Density functional theory calculations revealed that compared with pure antimonene with an indirect bandgap, fluorinated antimonene exhibits a direct bandgap modulated by the fluorination degree showing that fluorinated antimonene would be applied as optical devices beyond its application as a saturable absorber.
研究领域:
材料科学
·
光学
·
理论计算
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Research
·
2018
·Vol. 11
·期 11
·5968-5977
·
IF 7.994
Lin Wanzhen,Lian Yaping,Zeng Guang,Chen Yanyan,Wen Zhenhai,Yang Huanghao
Recent theoretical studies revealed that two-dimensional (2D) antimonene has attractive characteristics, such as superior photothermal conductivity, absorption over a wide range, high mobility, and good spintronic properties. Herein, we report a reliable liquid phase exfoliation (LPE) route for the preparation of high-quality high-stability atomically thin (AT) antimonene via high ultrasonic power. The AT antimonene delivers a high specific capacity of up to 860 mA·h·g –1 , with high rate capability and good cycling stability as an anode of a sodium ion battery (SIB). The good conductivity and 2D structure endow AT antimonene with more active sites for sodium storage, a facilitated pathway for electron transfer and mass transport, and the capability to reduce the volume expansion during the discharge–charge process.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2024
·Vol. 27
·期 1
·1-14
·
IF 2.1
Zhang Ziying,Liu Feng,Li Jiale,Wang Bing
Photothermal therapy (PTT), as a non-invasive and selective treatment strategy, has garnered extensive research interest. Photothermal agents (PTAs) are critical components of PTT, whose light-absorbing and thermosensitive properties enable effective conversion of light energy into heat, creating localized high-temperature regions. However, PTAs often face challenges with degradation in vivo, and standalone PTT is insufficient for complete tumor cell ablation. In this study, we successfully developed a biodegradable nanoplatform for synergistic photothermal-photodynamic therapy. This platform is based on degradable antimonene nanosheets, further functionalized with a chitosan coating, and loaded with the photosensitizer Ce6. In vitro experiments demonstrated that this nanoplatform exhibits excellent biocompatibility and biodegradability. Upon laser excitation, the platform induces localized thermal effects for cell ablation and promotes reactive oxygen species generation, leading to superior anti-tumor efficacy compared to monotherapies. These findings suggest that this multifunctional nanoplatform can significantly enhance the therapeutic efficiency of synergistic phototherapy, presenting a promising candidate for cancer treatment.
研究领域:
生物医学工程
·
癌症治疗研究
·
纳米医学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2019
·Vol. 8
·期 5
·1796-1802
·
IF 6.641
Zhiyuan Wang,Long Gao,Xiaozhen Wei,Min Zhao,Yanqin Miao,Xuefeng Zhang,Haixia Zhang,Hua Wang,Yuying Hao,Bingshe Xu,Junjie Guo
Efficient hole injection layers (HILs) are crucial for organic light emitting diodes (OLEDs) to achieve high performance. In this work, we report that doping PEDOT:PSS with semi-conductive antimonene quantum sheets (AMQSs) can effectively adjust the work function from −5.2 eV to −4.9 eV, and it exhibits a significantly higher hole injection performance and transmittance than those of the pure PEDOT:PSS layer. Consequently, the Ir(ppy)3-based green OLEDs adopting PEDOT:PSS:AMQSs as the HIL show a lower turn-on voltage of 3.0 V and achieve a dramatically higher device efficiency. Particularly, the optimized AMQS-based OLED realizes the maximum current efficiency (CE), power efficiency (PE) and external quantum efficiency (EQE) of 69.88 cd A−1, 48.28 lm W−1 and 19.91%, respectively, which are 14.86%, 68.99% and 13.32% higher than those of the reference device. The remarkable improvements are mainly ascribed to the two-dimensional electronic structure of AMQSs, which enhances the hole injection, transport capability, and boosts the light extraction efficiency. These findings point out a novel strategy to develop high-performance OLEDs by using two-dimensional quantum sheets.
研究领域:
材料科学
·
光电器件
·
纳米技术
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2019
·
IF 0
Xiaohui Ren,Zhongjun Li,Hui Qiao,Weiyuan Liang,Huating Liu,Feng Zhang,Xiang Qi,Yundan Liu,Zongyu Huang,Du Zhang,Jianqing Li,Jianxin Zhong,Han Zhang
Two-dimensional (2D) material with thickness down to the atomic state is regarded as able to expose more active sites and achieve much higher catalytic efficiency than its bulk counterpart. Recent investigated semi-metallic antimony (Sb) demonstrates high charge carrier density and environmental stability toward prospective electrocatalytic performance. In this work, we adopt a favorable liquid exfoliation approach to produce few-layer antimonene and implement it as a metal-free electrocatalyst for water splitting. Few-layer antimonene nanosheets have been realized with preferable bifunctional electrocatalytic activity in association with structural robustness; meanwhile, the catalytic performance and charge transfer behavior of an integrated three-electrode system have also been uncovered. In addition to bifunctional catalytic ability, few-layer antimonene shows a low catalytic threshold because of the inherent characteristics derived from semi-metallic layered materials. It is further anticipated that the present work contributes to extendable investigations about the catalytic performance of antimonene nanosheets and related electrocatalytic devices.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
Journal of Materials Chemistry B
·
2021
·Vol. 9
·期 45
·9333-9346
·
IF 6.331
Xiaokang Jin,Chengfeng Xu,Jinhua Hu,Shuting Yao,Zhiwen Hu,Bing Wang
Recently, nanomaterials have been well-studied in cancer therapy, but some of them often experience difficulties with degradation in vivo, which could cause severe damage to the human body. Among numerous biodegradable nanomaterials, antimonene nanosheets (AMNSs) are versatile, and possess photothermal and photodynamic properties and photoacoustic imaging (PAI) and drug loading ability. Herein, we employed a clearable multifunctional system. The small molecule photosensitizer IR820 and the gold nanoparticles (AuNPs) at small sizes of approximately 5 nm were loaded onto AMNSs coated with biodegradable chitosan (CS). This nanoplatform showed excellent photothermal and photodynamic properties, satisfactory degradability and photoacoustic imaging ability, good biocompatibility and effective NIR light triggered intracellular synergistic treatment. It also displayed good fluorescence imaging ability in the experiment of cell uptake. These suggested that this versatile nanoplatform was able to significantly enhance the therapeutic efficiency based on synergistic phototherapy, and could also be applied in fluorescence and photoacoustic dual imaging for integrating diagnosis and treatment.
研究领域:
纳米技术
·
癌症治疗
·
生物医学工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Research
·
2020
·
IF 0
Yiqiong Zhang,Man Qiao,Yucheng Huang,Yuqin Zou,Zhijuan Liu,Li Tao,Yafei Li,Chung-Li Dong,Shuangyin Wang
Direct formic acid fuel cell (DFAFC) has been considered as a promising energy conversion device for stationary and mobile applications. Advanced platinum (Pt) electrocatalysts for formic acid oxidation reaction (FAOR) are critical for DFAFC. However, the oxidation of formic acid on Pt catalysts often occurs via a dual pathway mechanism, which hinders the catalytic activity owing to the CO poisoning. Herein, we directly exfoliate bulk antimony to 2D antimonene (Sb) and in situ load Pt nanoparticles onto antimonene sheets with the assistance of ethylenediamine. According to the Bader charge analysis, the charge transfer from antimonene to Pt occurs, confirming the electronic interaction between Pt and Sb. Interestingly, antimonene, as a cocatalyst, alters the oxidation pathway for FAOR over Pt catalyst and makes FAOR follow the more efficient dehydrogenation pathway. The density functional theory (DFT) calculation demonstrates that antimonene can activate Pt to be a lower oxidative state and facilitate the oxidation of HCOOH into CO2 via a direct pathway, resulting in a weakened intermediate binding strength and better CO tolerance for FAOR. The specific activity of FAOR on Pt/Sb is 4.5 times, and the mass activity is 2.6 times higher than the conventional Pt/C.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
DOI
Small
·
2020
·Vol. 16
·期 42
·2003429
·
IF 11.459
Yingnan Liu,Yaqing Xiao,Min Yu,Yuanyuan Cao,Yalan Zhang,Taotao Zhe,Hui Zhang,Li Wang
Antimonene quantum dots (AMQDs) are attracting considerable attention due to their fascinating physicochemical properties. However, research on their semiconductor characteristics, especially the photoluminescence performance, is still in a preliminary stage and the experimental verification is scarcely reported, significantly restricting their further applications. Herein, the photoluminescence property of AMQDs is experimentally verified. The AMQDs are prepared by probe sonication-assisted liquid-phase exfoliation and show robust blue fluorescence, and the photoluminescence is hardly affected by pH. In view of the derivatization reaction of tetracyclines (TET) at different pHs, AMQDs are developed as a pH-mediated dual-channel ratiometric fluorescent probe for TET detection. Under acidic conditions, the AMQDs’ probe exhibits unique recognition behavior due to the inherent fluorescence of TET and the solvent-enhancing effect, that is, the fluorescence changes from blue to red. Under alkaline conditions, this fluorescent probe realizes the transition from blue to yellow-green because of the decomposition of TET. The limits of detection are 27 × 10 −9 and 74 × 10 −9 m , respectively. The high sensitivity and remarkable fluorescence changes make AMQDs ideal probes for TET sensing. Additionally, this is the first report on the photoluminescence property of AMQDs. It is believed that this work will open a new avenue for AMQDs in optical sensing fields.
研究领域:
材料科学
·
分析化学
·
纳米技术
·
光学传感
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemCatChem
·
2022
·Vol. 14
·期 6
·e202101765
·
IF 5.497
Jingkun Wang,Chengqiang Wang,Yanhui Song,Wenbo Sha,Zhiyuan Wang,Hailiang Cao,Min Zhao,Peizhi Liu,Junjie Guo
Graphical In this article, the synergy effect of active edge sites engineering of antimonene to expose more active sites and surface modulation strategy by ionic liquid to facilitate the electron transfer are adopted to endows AMNDs the boosted electrocatalytic activity toward HER in alkaline media. Ionic liquid modified active edge-rich AMNDs revealed absorbing activity towards the HER, such as a small overpotential of 116 mV at 10 mA cm −2 , a Tafel slope of 104 mV dec −1 and a long-term stability. Manipulating the size and surface modulation strategy provides a simple way for designing low-cost and high-efficiency electrocatalytic materials. Two-dimensional (2D) monoelemental antimonene has aroused great research interest since it emerged as a promising electrocatalyst for the hydrogen evolution reaction (HER). Nevertheless, the catalytic efficiency of the reported antimonene catalysts has been limited by their poor conductivity and low-density of exposed active sites. Herein, the active edge sites engineering is adopted to expose abundant catalytically active edge sites by decreasing the size of antimonene nanosheets to ultrasmall-sized antimonene nanodots (AMNDs). Meanwhile, the synergy effect of the surface modulation strategy by decorating the base surface of AMNDs using the ionic liquid benefits the mass transfer during the HER process. Impressively, the ionic liquid modified AMNDs (noted as IL-AMNDs) achieve a low overpotential of 116 mV at the current density of 10 mA cm −2 and excellent long-term durability, even superior to many other previously reported 2D catalysts. This work spreads the way out for the development of highly active and efficient hydrogen production catalysts.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）