BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
·
2025
·Vol. 115
·期 3
·1-7
·
IF 2.2
Wang Yun,Shan Ning,Habibul Zumrat,Habibul Nuzahat
This study investigated the impact of pH on the combined toxicity of polystyrene microplastics (MPs) and ciprofloxacin (CIP) on ryegrass growth and CIP uptake. Two different sizes of PS-COOH (200 and 500 nm) were utilized. The findings indicated that neutral and alkaline pH conditions (pH 7.0 and 8.8) significantly reduced CIP accumulation in ryegrass roots, regardless of MP presence. Conversely, CIP content in shoots (including leaves) increased with rising pH, showing 24.7-fold and 29.5-fold enhancements under CIP + 200 nm MPs and CIP + 500 nm MPs treatments at pH 8.8 compared to pH 5.3. Additionally, pH significantly influenced growth inhibition, with more pronounced effects at pH 7.0 and 8.8 than at pH 5.3. Under neutral and alkaline conditions, shoot lengths in 500 nm MPs + CIP and 200 nm MPs + CIP treatments were reduced to 50.3%, 69.7% and 86.8%, 81.3% of those at pH 5.3, respectively. These findings highlight the critical role of pH in modulating CIP uptake and toxicity in ryegrass, particularly in MP co-contaminated environments. Moreover, the relatively high CIP removal efficiency suggests the potential of ryegrass for CIP remediation in MP-polluted systems.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Catalysis
·
2020
·Vol. 3
·期 11
·932-940
·
IF 30.471
Xiao Yequan,Feng Chao,Fu Jie,Wang Faze,Li Changli,Kunzelmann Viktoria F.,Jiang Chang-Ming,Nakabayashi Mamiko,Shibata Naoya,Sharp Ian D.,Domen Kazunari,Li Yanbo
Ta 3 N 5 is a promising photoanode material with a theoretical maximum solar conversion efficiency of 15.9% for photoelectrochemical water splitting. However, the highest applied bias photon-to-current efficiency achieved so far is only 2.72%. To bridge the efficiency gap, effective carrier management strategies for Ta 3 N 5 photoanodes should be developed. Here, we propose to use gradient Mg doping for band structure engineering and defect control of Ta 3 N 5 . The gradient Mg doping profile in Ta 3 N 5 induces a gradient of the band edge energetics, which greatly enhances the charge separation efficiency. Furthermore, defect-related recombination is significantly suppressed due to the passivation effect of Mg dopants on deep-level defects and, more importantly, the matching of the gradient Mg doping profile with the distribution of defects within Ta 3 N 5 . As a result, a photoanode based on the gradient Mg-doped Ta 3 N 5 delivers a low onset potential of 0.4 V versus that of a reversible hydrogen electrode and a high applied bias photon-to-current efficiency of 3.25 ± 0.05%.
✓ 已验证
DOI
高影响因子
NATURE MATERIALS
·
2019
·Vol. 19
·期 3
·282-286
·
IF 38.887
Yuan Yao,Wang Jiacheng,Adimi Samira,Shen Hangjia,Thomas Tiju,Ma Ruguang,Attfield J. Paul,Yang Minghui
Platinum (Pt)-based materials are important components of microelectronic sensors, anticancer drugs, automotive catalytic converters and electrochemical energy conversion devices 1 . Pt is currently the most common catalyst used for the oxygen reduction reaction (ORR) in devices such as fuel cells and metal–air batteries 2 , 3 , although a scalable use is restricted by the scarcity, cost and vulnerability to poisoning of Pt (refs 4 , 5 , 6 ). Here we show that nanoparticulate zirconium nitride (ZrN) can replace and even surpass Pt as a catalyst for ORR in alkaline environments. As-synthesized ZrN nanoparticles (NPs) exhibit a high oxygen reduction performance with the same activity as that of a widely used Pt-on-carbon (Pt/C) commercial catalyst. Both materials show the same half-wave potential ( E 1/2 = 0.80 V) and ZrN has a higher stability (Δ E 1/2 = −3 mV) than the Pt/C catalyst (Δ E 1/2 = −39 mV) after 1,000 ORR cycles in 0.1 M KOH. ZrN is also shown to deliver a greater power density and cyclability than Pt/C in a zinc–air battery. Replacement of Pt by ZrN is likely to reduce costs and promote the usage of electrochemical energy devices, and ZrN may also be useful in other catalytic systems.
✓ 已验证
DOI
高影响因子
NATURE MATERIALS
·
2025
·
IF 38.5
Li Ziyue,Lin Yuxiao,Garaga Mounesha N.,Greenbaum Steven G.,Liao Mochou,Ruan Jiafeng,Li Qin,Li Yunsong,Sun Dalin,Xu Kang,Fang Fang,Wang Fei
Proton conduction in hydrogen-bond-rich protic electrolytes enables fast mass and charge transport, crucial for electrochemical energy storage and power conversion. Such transport can give proton-based batteries exceptional rate capability and low-temperature operation beyond other working ions. Here we show that in phosphoric acid (H 3 PO 4 ) electrolytes, vehicular and structural proton transport coexist, and their contributions to conductivity can be quantitatively distinguished. We link structural diffusion directly to hydrogen-bond strength, enabling the precise tuning of proton migration. Guided by this, we reveal a double conductivity peak from regulated structural diffusion. The optimal electrolyte (5.8-M H 3 PO 4 ) achieves high overall (232.9 mS cm −1 ) and structural (164.9 mS cm −1 ) conductivity. A MoO 3 ‖ CuFe-TBA battery with this electrolyte outperforms a deep-eutectic benchmark (8.3-M H 3 PO 4 ), delivering >17,474 W kg −1 at room temperature and retaining 15.1 Wh kg −1 at −75 °C. These findings provide a framework for designing advanced protic electrolytes across electrochemical systems.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NATURE MATERIALS
·
2025
·
IF 38.5
Zhang Chao,Wang Zhongliao,Liu Chang,Bai Yu,Liang Changhao,Low Jingxiang,Xiong Yujie
Subnanoscale (<2 nm) high-entropy alloys (SHEAs) have garnered increasing attention for their unique physicochemical properties that enable high catalytic performance. However, this potential is offset by reduced stability, a characteristic typically associated with high-entropy alloys, due to their high reactivity at this scale. Here we circumvent this obstacle by using the localized surface plasmon resonance effect along with laser fragmentation in liquids for synthesizing SHEAs. Localized-surface-plasmon-resonance-generated hot electrons from gold nanoparticles facilitate metal ion reduction, whereas the 7-ns laser pulse induces ultrafast heating and cooling cycles, fusing multiple metals into SHEAs with enhanced stability. This method enables the incorporation of up to ten elements into SHEAs. The selected AuPtRuRhIr SHEAs demonstrate high stability to work under 2 A cm −2 at 2.12 V for over 1,200 h in a proton exchange membrane electrolyser. This work presents a general strategy for the preparation of SHEAs, applicable across a wide range of fields.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NATURE MATERIALS
·
2025
·
IF 38.5
Han Jinpeng,Wu Zhaoyuan,Zhan Shumin,Sheng Tao,You Jiahuan,Yu Jicheng,Fu Junfen,Zhang Yuqi,Gu Zhen
Timing dosing throughout the day impacts the therapeutic efficacy and side effects of medications. Thus, optimizing release profiles to synchronize drug concentrations with natural rhythms is critical for optimal therapeutic benefits. However, existing delivery systems are still inefficient in delivering drugs in a biorhythm-mimicking fashion. Here we describe a biorhythm-inspired growth hormone transdermal microneedle patch with multistage drug release that mimics the natural rhythm of human growth hormone secretion at night. Programmed drug release is achieved by combining a ‘burst-release’ module with several ‘delayed-release’ modules. Compared with the subcutaneous daily injections currently used in clinics, the patch exhibits enhanced efficacy in terms of longitudinal bone growth and bone quality, leading to bone length increases of ~10 mm and ~5 mm in healthy rats and growth hormone gene knockout mice, respectively. Our findings reveal that the biorhythm-mimicking release pattern significantly enhances growth hormone bioavailability and effectively regulates the growth-related biological process, thus boosting the secretion of insulin-like growth factor-1 and ultimately promoting bone growth.
✓ 已验证
DOI
PubMed
高影响因子
Nature Catalysis
·
2023
·Vol. 6
·期 2
·174-184
·
IF 37.8
Hua Wuxing,Shang Tongxin,Li Huan,Sun Yafei,Guo Yong,Xia Jingyi,Geng Chuannan,Hu Zhonghao,Peng Linkai,Han Zhiyuan,Zhang Chen,Lv Wei,Wan Ying
Understanding sulfur conversion chemistry is key to the development of sulfur-based high-energy-density batteries. However, unclear relationships between the electronic structure of the catalyst and its activity are the major problem. Here, we provide a direct correlation between the p electron gain of S in p -block metal sulfides and the apparent activation energies ( E a ) for the sulfur reduction reaction (SRR), in particular, Li 2 S n to Li 2 S conversion, which is the rate-determining step of the SRR. The maximum p charge occurs in bismuth sulfide and results in the lowest E a and a high SRR rate in the cathode. Li–S batteries with the Bi 2 S 3 catalyst work steadily at a high rate of 5.0C with a high-capacity retention of ~85% after 500 cycles. A high areal capacity of ~21.9 mAh cm −2 was obtained under a high sulfur loading of 17.6 mg cm −2 but a low electrolyte/sulfur ratio of 7.5 μl mg −1 .
✓ 已验证
DOI
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-14
·
IF 36.3
Zhong Yihong,Yuan Guotao,Bao Dequan,Tao Yi,Gao Zhenqiu,Zhao Wei,Li Shuo,Yang Yuting,Zhang Pingping,Zhang Hao,Sun Xuhui
The heteroatom atomically doping strategy was reported to construct highly
efficient sites on metal oxides for the detection of low-concentration gas.
The atomically dispersed Sn atoms were intentionally incorporated into the Fe 2 O 3
lattice during the oxidative annealing of Fe-based metal organic framework,
leading to specific Sn–O–Fe sites, porous structures, and abundant oxygen
vacancies.
The optimized Sn-Fe 2 O 3 exhibited exceptional sensing performance for NO 2
detection: ultra-high sensitivity ( Rg / Ra =2646.6 to 1 ppm NO 2 ), ultra-low limit of
detection (10 ppb), and high selectivity.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-19
·
IF 36.3
Hu Haiman,Li Jiajia,Lin Fei,Huang Jiaqi,Zheng Huaiyang,Zhang Haitao,Ji Xiaoyan
Quasi-solid-state composite electrolytes (QSCEs) show promise for high-performance solid-state batteries, while they still struggle with interfacial stability and cycling performance. Herein, a F-grafted QSCE (F-QSCE) was developed via copolymerizing the F monomers and ionic liquid monomers. The F-QSCE demonstrates better overall performance, such as high ionic conductivity of 1.21 mS cm –1 at 25 °C, wide electrochemical windows of 5.20 V, and stable cycling stability for Li//Li symmetric cells over 4000 h. This is attributed to the significant electronegativity difference between C and F in the fluorinated chain (‒CF 2 ‒CF‒CF 3 ), which causes the electron cloud to shift toward the F atom, surrounding it with a negative charge and producing the inductive effect. Furthermore, the interactions between Li + and F, TFSI ‒ , and C are enhanced, reducing ion pair aggregation (Li + ‒TFSI ‒ ‒Li + ) and promoting Li + transport. Besides, ‒CF 2 ‒CF‒CF 3 decomposes to form LiF preferentially over TFSI – , resulting in better interfacial stability for F-QSCE. This work provides a pathway to enable the development of high-performance Li metal batteries.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano-Micro Letters
·
2025
·Vol. 18
·期 1
·80
·
IF 36.3
Lu Wei,Chen Rimei,Zhan Lianlong,Xiang Qin,Huang Renting,Wang Lei,Wang Shuangfei,He Hui
The micro/nano-reconfigurable robots for life-support systems were fabricated by CO₂-capturing molecular hunters, temperature-sensitive molecular switches, and solar photothermal conversion/magnetically-driven dual function engines.
The ultralow regeneration temperature (55 °C) and non-contact heat management of robots were achieved through nano-reconfiguration of internal temperature-responsive molecules and micro-reconfiguration of magnetic/photothermal synergy of Fe 3 O 4 nanoparticles.
Exceptional dynamic carbon management of robots extended the survival time of mice in confined spaces by 54.61%.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano-Micro Letters
·
2025
·Vol. 18
·期 1
·58
·
IF 36.3
Zheng Jianchen,Zhang Yuzhao,Yu Haibo,Wang Jingang,Guo Hongji,Qiu Ye,Wang Xiaoduo,Feng Yu,Liu Lianqing,Li Wen Jung
Proposed a dynamic grayscale gradient modulation system enabling multi-information analysis and encryption under multi-optical fields, establishing a new paradigm for multi-dimensional encryption of collaborative multispectral information.
Developed coumarin-based photo-responsive in situ reconstruction technology and constructed a multi-optical field coupled control system to achieve dynamic configuration of multi-information carriers.
Designed and fabricated a micro-dynamic multiple encryption device with integrated functions for information writing, erasing and rewriting, realizing stable information storage and dynamic destruction through micro/nano-optical keys.
✓ 已验证
DOI
PubMed
高影响因子
Nature Nanotechnology
·
2025
·
IF 34.9
Liang Kaiyu,Zhao Lan,Zhang Shuheng,Zheng Luyu,Zhang Zheyuan,Wang Shengyu,Chen Junxin,Xu Wenbin,Wang Weikai,Yang Hanshen,Song Chenxin,Qiu Pengcheng,Zhao Chenchen,Fang Weifeng,Zhu Jinjin,Fan Shunwu,Liu Zhaoming,Tang Ruikang,Zhao Yueqi,Fang Xiangqian
In the elderly population, dysregulated cellular behaviour during the healing process impacts tissue regeneration after injury. Early in the regeneration process, pro-inflammatory macrophages contribute to immune imbalance, while in later stages, senescent stem cells reduce regenerative capacity. Here we demonstrate that nicotinamide adenine dinucleotide (NAD + ) can reprogramme both types of dysfunctional cell. We developed a spatiotemporal-adaptive nanotherapeutic system for the delivery of NAD + into selected cells during different phases of tissue repair. By replenishing intracellular NAD + pools, this system reshapes the multicellular regeneration niche, by metabolically rewiring pro-inflammatory macrophages towards a pro-repair phenotype during the early phase, and enhancing the differentiation capacity of senescent stem cells at later stages. This strategy effectively restored impaired bone regeneration in osteoporotic mice and accelerated skin wound healing. Our work presents a spatiotemporal-adaptive nanomedicine platform that bridges cell metabolism, nanomedicine and regeneration therapy.
✓ 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）