PROGRESS IN ORGANIC COATINGS
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2022
·
IF 6.206
Shuhui Liu,Hui Xie,Qingmin Cao,Yujie Ning,Yihan Song,Chengdong Zhang,Bin Liu
This research aims to improve the protective performance of coatings in harsh corrosive conditions by using functionalized self-healing microcapsules. CeO 2 /PUF MCs and PUF MCs were prepared via one-step emulsion polymerization . The microcapsules were implanted into epoxy coatings to investigate their self-healing performance. Multiple testing techniques, including SEM, FTIR, XRD , TGA , EIS , and NSS were used to characterize the morphology, crystal structure, chemical composition, thermal properties, and self-healing performance of the microcapsules and coatings. The experimental results indicated that the CeO 2 /PUF MCs had a spherical core-shell structure with a rough surface and an average diameter of 1583 nm. Meanwhile, the minimum corrosion products and the highest low-frequency impedance were found in CeO 2 /PUF MCs coating with artificial scratch, which demonstrated that the self-healing and anti-corrosion performance were significantly improved by the newly developed bi-functional microcapsules.
研究领域:
材料科学
·
涂层技术
·
腐蚀科学
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 39
·18718-18723
·
IF 3.925
Rui Shi,Jin Yang,Shiqi Cheng,Shangying Qin,Li Huang,Yilin Wang,Yuanjin Xu
AuNPs@MoS2 NSs with high peroxidase-like activity were prepared and used for the colorimetric determination of biothiols. The synergistic effect between gold nanoparticles (AuNPs) and MoS2 nanosheets (MoS2 NSs) accelerated the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) in the presence of H2O2 to form the blue oxidized TMB (oxTMB) with an absorption peak at 652 nm. However, the AuNPs@MoS2 NS-catalyzed TMB oxidation could be inhibited by biothiols, resulting in an absorbance decrease. Under the optimized experimental conditions, the signal responses to homocysteine (Hcy), glutathione (GSH), and cysteine (Cys) were linear in the range from 1.0 to 100 μmol L−1, and the limit of detection of these biothiols was 0.93, 0.71, and 0.73 μmol L−1, respectively. The suggested method was successfully applied for the determination of Hcy in human serum samples with a recovery of 97.7–101.2%, indicating the potential application of this method for biothiol sensing in real samples.
研究领域:
分析化学
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生物医学工程
·
纳米材料科学
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Xiaolei Zhang,Bin Liu,Shu Yao,Zongming Liu,Jinkai Li
Photothermal therapy (PTT) has attracted great attention as an anticancer treatment strategy. With the rapid development of nanomedicine, multifunctional inorganic nanophotothermal agents provide a new way to improve the effect of PTT. Herein, bovine serum albumin (BSA)-modified Bi nanosheets (Bi NSs) with good biocompatibility were synthesized by a facile redox and ball milling method and applied as a photothermal agent for the enhancement of PTT. Owing to the strong near-infrared absorption, Bi NSs exhibit high photothermal conversion efficiency (η = 36.17%) under 808 nm laser irradiation and can serve as a nanotherapeutic agent for cancer therapy. In addition, in vitro cell safety analysis also suggests that the toxicity of BSA-modified Bi NSs is negligible. Upon 808 nm irradiation, the uptake ability of tumor cells to Bi NSs@BSA has been improved. Moreover, Bi NSs@BSA also can be used as a good contrast agent for CT imaging and then to observe the distribution of materials in the tumor site. Finally, Bi NSs@BSA-mediated PTT results show a high ablation rate of A549 tumor cells both in vitro and in vivo. All results reveal that Bi NSs@BSA is a promising nanotherapeutic platform for PTT.
研究领域:
纳米医学
·
癌症治疗
·
生物材料
✓ 已验证
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Qianfeng Li,Jian Sun,Xupo Liu,Changling Yan,Gongke Wang
Ascorbic acid (AA), a crucial antioxidant, is integral to various physiological processes in the human body and is extensively utilized as an additive in the food industry due to its potent antioxidant capabilities. Accurate and sensitive detection of AA is therefore vital for both biomedical research and food safety. Nanomaterials, with their unique physicochemical properties, have become prominent in sensing applications. Among these, perovskite quantum dots (QDs) stand out as promising fluorescent sensors due to their high quantum yield, tunable optical properties, and broad application potential. However, the limited water solubility and stability of perovskite QDs in aqueous environments have been a significant challenge. To address these issues, we have developed an innovative fluorescent sensor that integrates water-stable perovskite QDs (CsPbBr 3 QDs) with hollow mesoporous manganese dioxide nanospheres (HMnO 2 NSs). This novel sensor capitalizes on the unique hollow structure and superior redox properties of HMnO 2 NSs. The sensing mechanism is based on the reduction of HMnO 2 NSs to Mn 2+ by AA, which then triggers the fluorescence recovery of the CsPbBr 3 QDs/HMnO 2 NSs system. This mechanism enables efficient and selective detection of AA. The proposed sensor exhibits exceptional sensitivity, and demonstrates excellent selectivity against potential interfering substances. This work presents a more efficient and straightforward method for detecting AA in complex biological and food samples, highlighting its promising potential in the fields of biomedical research and food safety.
研究领域:
生物医学研究
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食品安全
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纳米材料科学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS & DESIGN
·
2025
·
IF 7.9
Ziming Wang,Yi Wang,Mengxue Hou,Qinghai Liu,Mengting Zhang,Lei Ge,Junfeng Gao,Feng Sun,Qingqing Guan,Tao Jiang,Chunhua Geng,Pinping Jiang,Yunxin Ge,Jie Shan,Jianghao Xing,Hongxia Li
Radiation pneumonitis (RP), a major dose-limiting toxicity of thoracic radiotherapy, is primarily driven by excessive reactive oxygen species (ROS) accumulation and proinflammatory macrophage activation, yet effective therapeutic strategies remain unavailable. Herein, we constructed Ti 3 CN nanosheets (Ti 3 CN NSs) via HF etching followed by ultrasonic exfoliation, enabling potent catalytic ROS scavenging and immunomodulatory activities. Leveraging their intrinsic antioxidative properties, Ti 3 CN NSs were systematically evaluated across cell, mice, and lung organoid models, demonstrating robust elimination of radiation-induced ROS and restoration of pulmonary redox homeostasis. Transcriptome sequencing combined with pathway enrichment analysis revealed that Ti 3 CN NSs alleviated radiation-induced macrophage ferroptosis, thereby rebalancing macrophage polarization by suppressing M1 and promoting M2 polarization. In vivo , Ti 3 CN NSs attenuated RP progression and facilitated structural repair of injured lung tissue. Collectively, this work proposes a nanomaterial-based strategy for the prevention and treatment of RP, and highlights the critical roles of macrophage polarization and ferroptosis in radiation-induced pulmonary inflammation.
研究领域:
纳米医学
·
放射肿瘤学
·
炎症生物学
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氧化还原生物学
·
免疫调节
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2024
·
IF 13
Saima Ashraf,Yanyan Liu,Shuling Liu,Sehrish Mehdi,Huanhuan Zhang,Ruofan Shen,Xianji Guo,Xianli Wu,Jianchun Jiang,Yongfeng Wang,Baojun Li
Palladium-based catalysts are remarkable in endorsing hydrogen (H 2 ) generation through formic acid (HCOOH, FA) dehydrogenation under near-ambient conditions. Hydrogen energy efficiency depends on high-performance catalyst design. In this study, Pd-Cu nanoalloy catalysts with mutable atomic ratios are successfully fabricated on TiO 2 nanosheets (TiO 2 -NSs).The synergistic electronic interactions between Palladium (Pd) and copper (Cu) are revealed through a density of states (DOS) analysis of alloy supported over a mixed valence state of Ti linked to oxygen vacancies (Vo) in TiO 2 -NSs, Enhanced adsorption of target molecules reveals novel active sites for Formic acid dehydrogenation (FAD), with O─H bond cleavage via HCOO formate intermediate preceding C─H and C─O bond cleavage. Experimental and theoretical research demonstrates that the Pd-Cu/TiO 2 -NSs (3:7) catalyst d electron redistribution and d-band center shift lower the activation energy for O─H bond cleavage, exhibit superior H 2 production than pure Pd and Cu, increasing Pd electron density due to synergistic effects from reactive crystal facets, defects, and strong metal support interactions (SMSI), lowering the activation energy for HCOOH dissociation step, generating carbon dioxide (CO 2 ) and H 2 with a unprecedented high turnover frequency (TOF) of 6268 mol H2 .h −1 .molPd −1 at 303K with activation energy ( E a ) of 15 KJ mol −1 . This attempt models an efficient HCOOH-to-hydrogen catalyst.
研究领域:
催化
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材料科学
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化学工程
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能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Lin Fan,Pengfei Wang,Mingyue Wang,Wanhong Lü,Fengyou Wang,Huilian Liu,Jinghai Yang,Lili Yang
In the development of high-efficiency n-i-p planar heterojunction perovskite solar cells (PSCs), the development of dense electron-transporting layers (ETLs) with excellent electrical properties and hetero-interface quality is very important for promoting perovskite growth and carrier transport dynamics. Herein, we propose a simple and effective strategy to simultaneously improve the electronic properties and interface quality of a tin oxide (SnO 2 ) ETL by introducing 2-hydroxyethyl modified gold nanostars (HEPES-Au NSs) into a commercial SnO 2 colloidal dispersion in order to synthesize mixed ETLs at low temperatures (≤150 ℃). Based on the unique plasmonic structure of the HEPES-Au NSs, we demonstrate that the modified ETLs exhibit higher conductivity and greater efficiency in the extraction, transfer, and collection of photogenerated electrons than conventional SnO 2 ETLs. Moreover, the chemical bond interaction between HEPES-Au NSs and the perovskite enhances the affinity of the SnO 2 /perovskite hetero-interface, which effectively improves the nucleation and crystallization kinetics of the perovskite, thus producing a high-quality absorber with high crystallinity and superior absorbance. Meanwhile, the 2-hydroxyethyl (HEPES) adsorbed onto the SnO 2 surface effectively passivates perovskite-related trap states, suppressing the non-radiative recombination and leakage current, and ultimately improving the relative electronic properties and photovoltaic performance output of the modified device. The results show that the power conversion efficiency (PCE) of the modified PSCs is significantly better than that of the original SnO 2 -based planar devices, and the optimal PCE reached 21.13%, with negligible hysteresis. Additionally, owing to the multifunctional effects of SnO 2 modified by HEPES-Au NSs, the functionalized devices without encapsulation also demonstrate reliable reproducibility and good stability, which shows great advantages in the development of high-efficiency flexible PSCs and monolithic tandem devices.
研究领域:
材料科学
·
能源科学
·
光电转换
✓ 已验证
产品关联
DOI
高影响因子
CELLULOSE
·
2024
·Vol. 31
·期 6
·3717-3728
·
IF 4.9
Wang Wenxi,Han Sirui,Ren Junjie,Xiao Xiufeng,Chen Jingbo,You Ruiyun,Zhang Guifeng,Lu Yudong
A two-dimensional (2D) substrate composed of nanocellulose-gold nanostars (S-CNF/Au NSs) was prepared, which exhibited remarkable homogeneity and stability. P-aminothiophenol (PATP) was modified on the S-CNF/Au NSs substrate by Au–S bonds. The amino group of PATP was utilized to react with the aldehyde group of malondialdehyde (MDA) in a Schiff base reaction, resulting in a new Raman peak at 1655 cm −1 attributed to C = N vibration. Since the intensity of the Raman peak at 1078 cm −1 was hardly affected under acidic conditions, the ratio of the characteristic peak of C = N (1655 cm −1 ) to the peak intensity at 1078 cm −1 was used as a characterization of the MDA concentration. The precision of signal intensity was further corrected to improve confidence of the results. The developed SERS sensing system displayed satisfactory sensitivity with a linear detection range of 1 × 10 –9 ~ 2.5 × 10 –2 mM and a limit of detection (LOD) of 1.29 × 10 –11 mM. The S-CNF/Au NSs 2D substrate was able to sensitively differentiate serum from gastric cancer patients and healthy individuals by SERS analysis ( p < 0.0001), which was superior to colorimetric analysis ( p < 0.01). This result suggests that the proposed S-CNF/Au NSs 2D substrate has potential for MDA detection and can be used for early diagnosis of gastric cancer.
研究领域:
医学诊断
·
生物化学
·
材料科学
✓ 已验证
DOI
高影响因子
Nanoscale
·
2022
·Vol. 14
·期 23
·8398-8408
·
IF 8.307
Qian Wu,Linlin Wang,Xin Mao,Yujie Yang,Li Yan,Suyuan Zeng,Kangning Zhao,Qiu-an Huang,Minmin Liu,Xiaojing Liu,Jiujun Zhang,Xueliang Sun
Research and development of flexible lithium-ion batteries (LIBs) with high energy density and long cycle life for portable and wearable electronic devices has been a cutting-edge effort in recent years. In this paper, a novel flexible self-standing anode for LIBs is fabricated successfully, in which NiCoP nanowires (NWs) coated with FeCoP nanosheets (NSs) to form core–shell heterostructure arrays are grown on carbon cloth (CC) (designated as NiCoP-NWs@FeCoP-NSs/CC). The obtained NiCoP-NWs@FeCoP-NSs/CC anode integrates the merits of the one-dimensional (1D) NiCoP-NW core and two-dimensional (2D) FeCoP-NS shell and the CC to show a high lithium-ion storage capacity with long-term cycling stability (1172.6 mA h g−1 at 1 A g−1 up to 300 cycles with a capacity retention of 92.6%). The kinetics studies demonstrate that the pseudocapacitive behavior dominates the fast lithium storage of this anode material. For fundamental mechanistic understanding, density functional theory (DFT) analysis is carried out, and manifests that electronic synergy can boost the superior performance of the NiCoP-NWs@FeCoP-NSs/CC anode. The assembled LiFePO4//NiCoP-NWs@FeCoP-NSs/CC full battery gives a discharge capacity of 469.9 mA h g−1 at 0.5 A g−1 after 500 cycles, and even at 2 A g−1, it still can retain 581.5 mA h g−1. Besides, the soft pack full battery can keep the LED lit continuously when it is folded at different angles and maintain brightness for a period of time, highlighting the large application potential of this flexible LIB for wearable electronic devices. This work provides an idea for the design and construction of advanced metal phosphide flexible electrodes for LIBs.
研究领域:
材料科学
·
能源存储
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Fei Tong,Zan Yang,Zheng Wang,Wenya Liu,Wanqi Jiang,Lu Zhu,Lei Wang,Mingming Zheng,Ruyan Hou,Yibin Zhou,Yingnan Liu
In view of the potential hazards of organophosphorus pesticides (OPs), this paper constructed a ratiometric fluorescent probe utilizing a functionalized metal–organic framework to detect OPs. Ru(bpy) 3 Cl 2 was encapsulated inside UiO-66 as a reference signal, and MnO 2 nanosheets (MnO 2 NSs) were grown on the surface to obtain [email protected] @MnO 2 NSs. Acetylcholinesterase catalyzed the decomposition of acetylcholine into reductive thiocholine, which consumed MnO 2 NSs, thus restoring the [email protected] fluorescence. Due to the enzymatic inhibition of OPs and the redox reaction between MnO 2 NSs and thiamine, this probe emitted blue fluorescence in the presence of OPs. The probe achieved linear responses to dichlorvos and chlorpyrifos with LODs of 9.99 × 10 -6 μg mL −1 and 9.99 × 10 -5 μg mL −1 . The probe exhibited a satisfactory recovery rate for OPs in green tea. Furthermore, a hydrogel detection platform was developed by embedding the probe into sodium alginate. Overall, this work provides a visual approach to detect OPs in agricultural products.
研究领域:
分析化学
·
环境科学
·
材料科学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Hanyu Wang,Yanting Qi,Dan Wu,Qin Wei
In this study, lead(II) sulfide (PbS) nanocrystals were modified on nickel(II)oxide nanosheets (NiO NSs) via the chemical bath method. Afterwards, Au nanoparticles (NPs) were also modified successfully. A photoelectrochemical (PEC) self-powered platform for detecting sarcosine with high PEC activity was constructed. The capacity of NiO NSs to be loaded with other sensitizing materials was mainly attributed to its porous structure and large specific surface area. Under optimum conditions, the constructed PEC self-powered cathodic sensor for detecting sarcosine exhibited a linear range in 5.0 × 10 −8 –5.0 × 10 −2 mol/L with a detection limit (LOD) of 1.7 × 10 −8 mol/L. The biosensor demonstrated good reproducibility, acceptable stability and high specificity, thus confirming its potential application in the detection of other similar substances.
研究领域:
分析化学
·
材料科学
·
生物传感器
·
电化学
✓ 已验证
DOI
高影响因子
Analytical Methods
·
2021
·Vol. 13
·期 7
·903-909
·
IF 2.896
Yiming Liu,Yanan Sun,Minli Yang
A new kind of convenient, low-cost double-potential ratiometric ECL sensing platform for the quantification of Cu2+ was developed with carbon nitride nanosheets (g-C3N4 NSs) and graphene quantum dots (GQDs) as ECL luminophores. g-C3N4 NSs mixed with multi-walled carbon nanotubes (MWCNTs) was immobilized on a glass carbon electrode (GCE) and produced strong cathodic ECL at a potential of −1.2 V (vs. Ag/AgCl), while GQDs in the solution gave anodic ECL at +2.5 V. MWCNTs were used here to amplify the ECL signal of g-C3N4 NSs. The addition of Cu2+ causes the cathodic ECL signal from g-C3N4 to decline, while the anodic ECL signal from GQDs remains unchanged. With the anodic ECL signal as an internal reference, a double-potential ratiometric ECL sensing platform for Cu2+ was established. The ratio of the cathodic signal intensity to anodic signal intensity showed a linear response to the Cu2+ concentration over a range from 5.0 × 10−10 to 1.0 × 10−6 mol L−1 and the detection limit was 0.37 nmol L−1 (3σ/S). Such a construction strategy alleviates the interference from the environment and therefore improves the detection accuracy of Cu2+. Compared with other methods for Cu2+ detection, this method is simpler and more sensitive.
研究领域:
分析化学
·
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）