Advanced Healthcare Materials
·
2026
·
IF 9.6
Ruixi Feng,Huan Peng,Xin Yang,Linjie Li,Shu Yang,Wenze Lv,Ge Wang,Zhi Wang,Guixue Wang,Mei Yang,Guangchao Zang,Fei Gao
Every year, millions of ureteroscopy patients must return for a second procedure to remove the ureteral stent, doubling both costs and infection risk. Biodegradable stents offer a promising solution by eliminating this second procedure, but achieving an optimal balance between robust mechanical performance, precise degradation kinetics, and excellent biocompatibility remains a major challenge. A novel tailorable biodegradable hydrogel ureteral stent (GAS) designed from Gelatin Methacryloyl (GelMA) and Alginate Methacryloyl (AlgMA), utilizing double network crosslinking and Hofmeister stretching treatment for programmed degradation. This design not only significantly enhances the stent's mechanical performance but also proposes a dynamic hydrogen bonds reconfiguration and crosslinking density tailorable degradation strategy to optimize degradation kinetics. By adjusting dynamic hydrogen bonds and optimizing GelMA concentration, GAS achieves adjustable degradation times ranging from 2 to 4 weeks. Furthermore, in animal models, not only can the degradation time be controlled within a range of 2–4 weeks, but the stents also exhibit lower signs of inflammation or fibrosis compared to clinically commonly used stents. In essence, GAS represents a simple yet powerful strategy for customizing the degradation kinetics of biomedical implants, and this stent is poised to significantly improve postoperative care and outcomes for ureteroscopy patients.
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 19
·56188-56197
·
IF 5.8
Chen Jingwen,Wu Menglin,Ni Jiupai,Ni Chengsheng
Photocatalysis using the visible light of the sun is an environmentally friendly method of eliminating the NOx pollutant from the ambient air. Although Cs 3 Bi 2 Br 9 , a semiconductor with a band gap of 2.54 eV, may be a strong absorber of visible light, its photocatalysis towards the abatement of NOx is unknown. In this study, Cs 3 Bi 2-x Pb x Br 9-x (0 ≤ x ≤ 0.0789) are used for the photocatalytic oxidation of NOx. A significant NO oxidation efficiency (80%) is observed over Cs 3 Bi 2-x Pb x Br 9-x (x = 0.0443) under visible light, which is attributable to the Br vacancy ( V Br ) brought about by Pb 2+ doping. The presence of V Br increased the ionic selectivity of in the oxidized NO. At higher Pb doping level, two HONOs adsorbed on the V Br , linked, and then reduced by hot electrons to produce N 2 O 2 2− . The di-azo coupling could passivate the activation of NO on the V Br . This work advances the defect engineering of halide for the photo-driving solid–gas reaction in air.
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2022
·
IF 3.428
Jianyin Zhang,Xiuxia Lu,Xiaoxiao Shi,Haohao Liu,Limin Zhang,Xingwei Shi
Using (BiO) 2 CO 3 as the raw material and a simple molten salt process followed by ball-milling, mass manufacturing of 2D layered BiOCl nanoplates and carbon composites can be produced. XRD, XPS, SEM, and TEM were used to characterize the as-synthesised materials in great detail. Eletrochemical experiments demonstrate that after 100 cycles at a current density of 100 mA g −1 , the discharge capacity of the BiOCl@C composite electrode remains at 410 mAh/g, and average coulombic efficiencies can remain as high as 99 % after the first cycle. This work would establish a novel method for producing high-volumetric-energy–density BiOCl@C anode materials, which are likely to be viable candidates for application in lithium-ion batteries.
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RSC Advances
·
2023
·Vol. 13
·期 45
·31785-31794
·
IF 3.9
Yi Yu,Kai Shao,Chonghui Niu,Mingjie Dan,Yingying Wang,Xiourong Zhu,Xianke Zhang,Yeqing Wang
In recent years, more and more attention has been paid to optical temperature sensing, and how to improve its accuracy is the most important issue. Herein, a new temperature sensing material, SrGd2Al2O7:Bi3+,Mn4+, based on fluorescence intensity ratio was designed in this work. It has both blue-purple and red luminescence under 300 nm excitation, and the dual-emitting centers with distinct colors, the different thermal sensitivities of Bi3+ and Mn4+, and the energy transfer between Bi3+ and Mn4+ give it excellent signal resolution and accurate temperature detection. The Sa of SrGd2Al2O7:0.04Bi3+,0.003Mn4+ phosphor reaches a maximum value of 8.573% K−1 at 473 K, and the corresponding Sr is 1.927% K−1, both of which are significantly better than those of most other reported optical temperature sensing materials. Taking all the results into account, the SrGd2Al2O7:0.04Bi3+,0.003Mn4+ phosphor can be regarded as a prominent FIR-type temperature sensing material.
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CERAMICS INTERNATIONAL
·
2013
·
IF 1.789
Lianyi Shao,Songying Wang,Kaiqiang Wu,Miao Shui,Rui Ma,Dongjie Wang,Nengbing Long,Yuanlong Ren,Jie Shu
Comparison of (BiO) 2 CO 3 to CdCO 3 as anode materials is investigated in this paper. Electrochemical results show that both (BiO) 2 CO 3 and CdCO 3 are electrochemically active materials with high initial capacities of 1080.1 and 1251.1 mAh g −1 , respectively. Ex-situ X-ray diffraction (XRD) results show that the electrochemical reaction mechanisms of CdCO 3 with Li can be associated with the preliminary formation of Cd and Li 2 CO 3 upon the initial lithiation, and then the final formation of LiCd alloy upon further lithiation. In contrast, the electrochemical reaction of (BiO) 2 CO 3 with Li not only results in the formation of Bi and Li 2 CO 3 , but also induces the formation of Li 2 O. Besides, upon further lithiation, the alloying reaction of Bi with Li is a multi-step process to form LiBi, Li x Bi, and finally Li 3 Bi as confirmed by electrochemical behaviors and in-situ XRD technique. Compared with CdCO 3 , (BiO) 2 CO 3 can exhibit better electrochemical properties with a reversible capacity of 155.1 mAh g −1 and a capacity retention of 28.3% after 15 cycles. By introducing carbon black as conductive additive and volume change buffer, the reversible capacity of ball-milled (BiO) 2 CO 3 /C composite can be improved to the value of 297.6 mAh g −1 with a capacity retention of 47.8% after 15 cycles.
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Sustainable Energy & Fuels
·
2024
·Vol. 8
·期 3
·564-572
·
IF 5
Jinfan Wu,Tao Wang,Fen Xu,Lixian Sun,Lumin Liao,Yuan Gao,Yanxun Guan,Hehui Wang,Guorong Zhang,Zhong Cao,Julan Zeng
A series of novel porous hydrogen-generation materials with the formulae Al–(BiO)2CO3, Al–4BiNO3(OH)2·BiO(OH), and Al–Bi2(SO4)3 were synthesized by ball milling and spark plasma sintering (SPS). Their hydrogen-production properties were investigated. The results revealed that doping Al–(BiO)2CO3 in aluminium powder was the most effective for improving the hydrogen-generation performance. The hydrogen-conversion yield and maximum hydrogen-generation rate (MHGR) of the Al–(BiO)2CO3 block reached 94.9% and 384.6 mL g−1 min−1, respectively. Mechanism study indicated that (BiO)2CO3 decomposed into Bi2O3 and CO2, and the produced Bi2O3 could react with Al to produce Bi and Al2O3in situ during the SPS process. Herein, the produced CO2 could also form a large number of holes in the bulk sample under the action of sintering pressure to obtain the porous Al–(BiO)2CO3 composite. The hydrogen-generation performance of Al–(BiO)2CO3 was thus substantially enhanced under the synergistic effect of these factors.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 11
·1-15
·
IF 5.3
Li Jin-Yu,Mei Li-Ping,Wang Zhi-Gang,Fang Ke-Ming,Wang Ai-Jun,Feng Jiu-Ju
Well-defined high-entropy alloy PtPbBiFeMn nanoplates (HEAPs) were synthesized by a wet-chemical co-reduction approach. The PtPbBiFeMn HEAPs exhibited excellent peroxidase (POD)-like activity. Leveraging this POD-mimicking property, a dual-mode sensor was developed for quantitative determination of a typical organophosphorus (OP) omethoate. Specifically, the nanozyme oxidizes colorless 3,3′,5,5′-tetramethylbenzidine (TMB) and o -phenylenediamine (OPD) with H 2 O 2 to its colored form. This reaction is regulated by alkaline phosphatase (ALP)-mediated hydrolysis of ascorbic acid 2-phosphate (AAP) to ascorbic acid (AA), which reduces oxidized TMB and modulates the detection signals. Additionally, ascorbic acid (AA) is converted to dehydroascorbic acid (DHAA). Consequently, an ALP-dependent fluorescence response is obtained through the condensation reaction between OPD and DHAA, yielding the fluorescent compound 3-(1,2dihydroxy ethyl) furo[3,4- b ] quinoxalin-1(3 H) with a maximum emission wavelength in the range 568 to 430 nm. When ALP existed, the colorimetric method for omethoate displayed a linear range of 10.02–167.10 × 10 −4 mg kg −1 with a limit of detection (LOD) of 8.76 × 10 −4 mg kg −1 ( S / N = 3), while a ratiometric fluorescence ( I 430 / I 568 ) approach had a linear range of 6.68 × 10 −4 –384.3 × 10 −4 mg kg −1 with an LOD of 6.63 × 10 −4 mg kg −1 ( S / N = 3). This work provides constructive insights to simplify biosensing platforms for food safety and environmental monitoring. Graphical
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Fermentation-Basel
·
2025
·Vol. 11
·期 12
·664
·
IF 3.3
Yu Hou,Yubo Wang,Tianpeng Ma,Shuobo Shi,Zheng Wang,Chun Shen,Yunming Fang,Fenghui Ye,Zihe Liu
Fossil fuel overuse drives excessive CO2emissions, exacerbating environmental degradation and climate change. Coupling electrochemistry with microbial fermentation provides a promising route to convert CO2into fuels and chemicals. However, microbial electrolytic solution tolerance remains a critical bottleneck, as observed in model organisms likeSaccharomyces cerevisiae(S. cerevisiae). To address this, we engineeredS. cerevisiaeto utilize electrochemically derived formate, thereby boosting free fatty acids (FFAs) production. By optimizing culture conditions and heterologously expressing formate dehydrogenase (FDH), we improved formate assimilation efficiency. Additionally, we introduced stress-resistant genes for a better electrolytic solution tolerance to sustain growth and FFAs synthesis under harsh electrolytic conditions (e.g., high formate/salt ion concentrations), eliminating the need to separate formate from the electrolyte post-electrolysis. In the presence of 4 g/L formate electrolytic medium, the engineered strain YB061 achieved a 41.9% increase in biomass and a formate conversion rate exceeding 97.0%. Compared to the parental strain, YB061 enhanced FFAs production by 92.8% by utilizing formate-containing electrolytes, demonstrating great potential for bio-electrochemical manufacturing. However, further work is needed to improve yeast tolerance to high formate concentrations and to enable direct coupling of CO2electroreduction with microbial cultivation.
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