APPLIED THERMAL ENGINEERING
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2025
·
IF 6.9
Yanjun Sun,Haiqi Zheng,Bohao Yin,Xiaopo Wang,Maogang He
With global energy consumption surging and environmental concerns escalating, absorption refrigeration systems are receiving increasing attention. This study investigates the absorption behavior and thermodynamic performance of absorption refrigeration systems using trans -1-chloro-3,3,3-trifluoro-1-propene (R-1233zd(E)) paired with phosphonium-based ionic liquids (ILs), trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl) amide ([P 66614 ][Tf 2 N]) and trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl) phosphinate ([P 66614 ][TMPP]). Experimental solubility measurements of R-1233zd(E) in the ILs were conducted using an isochoric saturation method across a temperature range of 293.15–343.15 K and pressures up to 0.61 MPa. The Non-Random Two-Liquid (NRTL) thermodynamic model was employed to correlate solubility data, yielding excellent agreement with deviations of less than 3.84 %. Results revealed that [P 66614 ][TMPP] exhibits higher solubility due to its branched alkyl chains, increased free volume, and favorable van der Waals interactions. Thermodynamic analyses were performed for single-effect (SARS), double-effect (DARS), and compression-assisted cycles (LC-SARS, single-effect cycle with a compressor added in the low-pressure side; HC-SARS, single-effect cycle with a compressor added in the high-pressure side; LC-DARS, double-effect cycle with a compressor added in the low-pressure side). It demonstrated that [P 66614 ][TMPP] exhibits a higher coefficient of performance (COP) compared to [P 66614 ][Tf 2 N]. Compression assistance reduced the minimum generation temperature and improved COP by leveraging electrical energy. Among all configurations, LC-DARS with a compression ratio of 1.9 demonstrated the optimal balance between COP (0.82) and thermal energy utilization efficiency. These findings highlight the potential of R-1233zd(E)/[P 66614 ][TMPP] as a sustainable working pair for absorption systems, particularly in low-grade heat recovery applications.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hui Ma,Qiuhong Wang,Siyan Li,Huidi Huang,Juan Zhang,Yuanfeng Wang,Wen Wu,Xiaohui Yu,Jiajia Shen
Achieving large-scale, ion-selective sensing remains a critical challenge in the development of wearable health-monitoring systems with clinical relevance. Here, we present a bio-inspired sea-island electrostatic heterostructure that enhances ion selectivity by engineering a spatially patterned charge interface, in which graphene (Gr) serves as a negatively charged sea and polylysine modified Fe 3 O 4 (PLL@Fe 3 O 4 ) nanoparticles act as positively charged islands. This heterostructure generates local electrostatic gradients that preferentially facilitate K + over Na + transport based on differences in hydration shell deformability. To enable scalable fabrication, we developed a shear-thinning PLL@Fe 3 O 4 /Gr ink suitable for screen printing, allowing the creation of flexible e-textile sensor arrays. The Na + /K + selectivity coefficient improved significantly from ~0.95 (Gr) to ~1.45 (PLL@Fe 3 O 4 /Gr), representing an enhancement of approximately 53 %. The printed sensors exhibited excellent stability during continuous sweat monitoring and successfully generated early warning signals under simulated hypokalemia conditions. This work provides a scalable and effective strategy for constructing high-performance, ion-selective textile biosensors, bridging fundamental ion transport principles with real-world applications in wearable healthcare platforms.
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Journal of Cleaner Production
·
2024
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IF 9.7
Weichun Gao,Shengnan Chen,Cong Geng,Yinyan Guan,Yingjun Gao,Jiyan Liang
Given the limitations of unequal H 2 O 2 and O 3 distribution in the E-peroxone (EP) process, a novel dual-wavelength UV enhanced E-peroxone process (VUV/UVC/EP) with high performance for removing emerging contaminants was established. In this paper, carbamazepine (CBZ) removal rates by different oxidation processes were investigated, calculating the kinetic effects of the VUV/UVC/EP processes in various operating parameters, and the degradation mechanisms and pathways of CBZ were comprehensively discussed. Compared with conventional EP, ultraviolet (UVC, wavelength 254 nm), UVC/EP, and dual-wavelength ultraviolet (VUV/UVC, wavelength 185 and 254 nm) processes, the VUV/UVC/EP process exhibits an excellent ability for degradation of carbamazepine (CBZ), the synergy coefficient between VUV/UVC and EP process is 1.44 (>1). In particular, the VUV/UVC/EP process exhibits exceptional degradation performance even at 50 mg L −1 CBZ. It also demonstrates high adaptability to varying pH, humic acid concentration, and different inorganic anions (SO 4 2− , Cl − , NO 3 − , PO 4 3− and CO 3 2− ). In addition, ·OH, 1 O 2 , and·O 2 − were identified to exist in the VUV/UVC/EP process. The dominant reactive species ·OH content was increased by decomposing the excess dissolved O 3 to accelerate CBZ degradation. CBZ was broken down into a series of intermediates, NO 2 − , NO 3 − , and other inorganic compounds through ring reduction and oxidation reactions under the attack of reactive oxygen species (ROS) generated in the VUV/UVC/EP process. It also can remove more than 50% of TOC in 30 min and decrease biological toxicity. An electrical energy-per-order (EEO) value of 3.37 kW h m −3 indicated that the VUV/UVC/EP process is economically feasible. This comprehensive examination provides valuable insights into the CBZ removal in reclaimed water, contributing to the advancement of environmental water resources.
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BIOSENSORS & BIOELECTRONICS
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2025
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IF 10.5
An Tang,Jiachen Wang,Jia-Li Xu,Jun-Tao Liu,Tianpeng Xu,Qiang Zhang,Yu Tian
The integration of visualization and electrical feedback in biomimetic electronic skin (E-skin) for real-time motion tracking has attracted significant attention in wearable electronics. To facilitate human-readable interactive feedback and improve the overall performance of E-skin, particularly regarding mechanical compliance, sensitivity, and stability, we propose a novel high-performance photonic-ionic skin (PI-skin) based on mechanochromic photonic ionogel. The PI-skin, prepared by incorporating aligned magnetic colloids into an ionogel matrix, integrates interactive structural coloration and electrical responses to external stimuli, achieving dual-mode precise motion recognition. Due to the enhanced hydrogen bonding and electrostatic interactions within the ionogel matrix, the PI-skin exhibits excellent mechanical properties (tensile strain >1000%), remarkable adhesive strength (peeling force >7 kPa), high sensitivity (gauge factor = 1.42 at straining 0%–300% and 2.71 at straining 300%–500%), rapid response time (120 ms), and exceptional mechanical compliance (>500 continuous cycles). More importantly, such PI-skin demonstrates ultrafast and highly accurate optical/electrical dual-signal motion detection, thereby facilitating posture correction during sitting and encoding of vocal cord vibrations during speech. We anticipate that this versatile PI-skin will possess substantial potential in the field of wearable electronics, and may inspire the design of next-generation E-skin for human-computer interaction and personalized healthcare applications.
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Journal of Materials Chemistry A
·
2024
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IF 10.7
Zhihao Zhou,Siyuan Duan,Guangze Nie,Zhenkun Sun,Lunbo Duan
Reverse water-gas shift (RWGS) reaction offers a promising pathway for utilising green H2 to reduce CO2 into CO, a valuable precursor for e-fuel production. Conventional catalyst synthesis methods, however, often rely on costly and complex procedures using fine chemical precursors. In this study, we repurpose retired ternary lithium-ion battery cathodes (rTLIBCs), prevalent e-waste from the electric vehicle industry, as catalysts for the RWGS reaction. Using a straightforward method of mixing rTLIBC material with Al2O3 powder, we successfully synthesise xNCM/Al2O3 catalysts with high CO2 conversion and CO selectivity. Notably, the 10NCM/Al2O3 catalyst demonstrates the highest CO space-time yield at 450–600 °C, with stable performance across long-term tests, maintaining CO2 conversion, CO selectivity, and CO space-time yield. The performance of our prepared catalyst is comparable to that of the best catalysts synthesised using fine chemicals. The high catalytic performance is attributed to the synergistic effect of a Ni-Co bimetallic alloy formed during pretreatment, strong metal-support interaction, and alkali metal Li. Ni-Co alloy formation optimises the catalytic activity and selectivity, the metal-support interaction enhances CO2 activation, and Li boosts basicity and fine-tunes the reaction pathway. This study validates that rTLIBCs are a viable raw material for practical RWGS catalyst synthesis, providing a sustainable alternative for e-waste utilisation.
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BIOTECHNOLOGY LETTERS
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2018
·Vol. 40
·期 5
·837-845
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IF 1.846
Hui Chang-Ye,Guo Yan,Yang Xue-Qin,Zhang Wen,Huang Xian-Qing
Objectives To improve the Pb 2+ biosorption capacity of the potential E. coli biosorbent, a putative Pb 2+ binding domain (PbBD) derived from PbrR was efficiently displayed on to the E. coli cell surface. Results The PbBD was obtained by truncating the N-terminal DNA-binding domain and C-terminal redundant amino acid residues of the Pb 2+ -sensing transcriptional factor PbrR. Whole-cell sorbents were constructed with the full-length PbrR and PbBD of PbrR genetically engineered onto the surface of E. coli cells using Lpp-OmpA as the anchor. Followed by a 1.71-fold higher display of PbBD than PbrR, the presence of PbBD on the surface of E. coli cells enabled a 1.92-fold higher Pb 2+ biosorption than that found in PbrR-displayed cells. Specific Pb 2+ binding via PbBD was the same as Pb 2+ binding via the full-length PbrR, with no observable decline even in the presence of Zn 2+ and Cd 2+ . Conclusions Since surface-engineered E. coli cells with PbBD increased the Pb 2+ binding capacity and did not affect the adsorption selectivity, this suggests that surface display of the metal binding domain derived from MerR-like proteins may be used for the bioremediation of specific toxic heavy metals.
研究领域:
微生物学
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环境科学
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生物技术
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Journal of Materials Chemistry C
·
2018
·Vol. 7
·期 3
·578-585
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IF 5.976
Yibo Yang,Jize Liu,Jie Cao,Zehang Zhou,Xinxing Zhang
Despite the wide range of applications of flexible strain sensors, most of them use covalently crosslinked elastomers as a stretchable matrix, which may cause potential environmental problems via the disposal of worn-out devices. To mitigate this environmental threat, endowing sensors with self-repairability can be a simple and effective way to prolong their service lives. However, most current self-repairing sensors require complicated syntheses, in which hazardous solvents and reagents are always needed. Therefore, it remains challenging to develop an environment-friendly self-repairing sensor. Here, we report a sustainable self-repairing strain sensor based on naturally-derived supramolecular elastomer and green-synthesized silver nanofibers. This E-skin sensor features a high conductivity (≥104 S m−1), low percolation threshold (0.32%), high sensitivity (gauge factor ∼405.6) and desirable real-time (≤30 s) self-repairability after damage. This work may pave the way for the development of renewable, biocompatible and self-repairing next-generation wearable electronic devices.
研究领域:
材料科学
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环境科学
·
生物医学工程
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BRAZILIAN JOURNAL OF BIOLOGY
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2021
·
IF 1.651
Huang Y.,Zhang N.-J.,Zhao Z.
As an important enzyme, xylanase is widely used in the food, pulp, and textile industry. Different applications of xylanase warrant specific conditions including temperature and pH. This study aimed to carry out sodium alginate beads as carrier to immobilize previous reported mutated xylanase from Neocallimastix patriciarum which expressed in E. coli, the activity of immobilization of mutated xylanase was elevated about 4% at pH 6 and 13% at 62 °C. Moreover, the immobilized mutated xylanase retained a greater proportion of its activity than the wide type in thermostability. These properties suggested that the immobilization of mutated xylanase has potential to apply in biobleaching industry.
研究领域:
酶工程
·
工业微生物学
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生物技术
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Microbial Cell Factories
·
2021
·Vol. 20
·期 1
·1-13
·
IF 5.328
Zhang Yuyang,Chen Hongping,Zhang Yao,Yin Huifang,Zhou Chenyan,Wang Yan
Background Violaceins have attracted much attention as potential targets used in medicines, food additives, insecticides, cosmetics and textiles, but low productivity was the key factor to limit their large-scale applications. This work put forward a direct RBS engineering strategy to engineer the violacein biosynthetic gene cluster cloned from Chromobacterium violaceum ATCC 12,472 to efficiently improve the fermentation titers.Results Through four-rounds of engineering of the native RBSs within the violaceins biosynthetic operon vioABCDE, this work apparently broke through the rate-limiting steps of intermediates conversion, resulting in 2.41-fold improvement of violaceins production compared to the titers of the starting strain Escherichia coli BL21(DE3) (Vio12472). Furthermore, by optimizing the batch-fermentation parameters including temperature, concentration of IPTG inducer and fermentation time, the maximum yield of violaceins from (BCDE)m (tnaA−) reached 3269.7 µM at 2 mM tryptophan in the medium. Interestingly, rather than previous reported low temperature (20 ℃), we for the first time found the RBS engineered Escherichia coli strain (BCDE)m worked better at higher temperature (30 ℃ and 37 ℃), leading to a higher-level production of violaceins.Conclusion sTo our knowledge, this is the first time that a direct RBS engineering strategy is used for the biosynthesis of natural products, having the potential for a greater improvement of the product yields within tryptophan hyperproducers and simultaneously avoiding the costly low temperature cultivation for large-scale industrial production of violaciens. This direct RBS engineering strategy could also be easily and helpfully used in engineering the native RBSs of other larger and value-added natural product biosynthetic gene clusters by widely used site-specific mutagenesis methods represented by inverse PCR or CRISPR-Cas9 techniques to increase their fermentation titers in the future.
研究领域:
合成生物学
·
微生物学
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NANOTECHNOLOGY
·
2020
·Vol. 31
·期 39
·395602
·
IF 3.551
Hongchao Geng,Ning Jiang,Chenyi Li,Xingqi Zhu,Yan Qiao,Qingyun Cai
A novel visible light-driven photocatalyst (represented as Mn-CdS/ZCISe/CIS/TiO2) for the passivation of E. coli was prepared with TiO2 nanowires as support and using CuInS2 (CIS) and ZnCuInSe (ZCISe) quantum dots (QDs), as well as Mn-doped CdS (Mn-CdS) nanoparticles (NPs) as sensitizers. The use of CIS and ZCISe QDs and Mn-CdS NPs extends the light harvest region to visible light. The photoelectric conversion efficiency was consequently improved, with a photocurrent density of 12.5 mA cm−2, about 60 times that of pure TiO2 nanowires. The germicidal efficiency of the photocatalyst was assessed by passivation of E. coli, 96% bacteria in 50 ml 105 colony forming units (CFU) ml−1 solution were killed within 50 min. Besides the high efficiency, the composite has good stability and satisfactory recycling performance. The antibiotic mechanism was also performed by using photoluminescence and a scavenging agent of different active matter, revealing that the photo-generated holes play a major role in the sterilization process.
研究领域:
微生物学
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材料科学
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环境科学
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iScience
·
2023
·
IF 5.8
Sirui Tan,Shaila Afroj,Daiqi Li,Md Rashedul Islam,Jihong Wu,Guangming Cai,Nazmul Karim,Zhong Zhao
Summary Electroconductive textile yarns are of particular interest for their use as flexible and wearable sensors without compromising the properties and comfort of usual textiles. However, the detection of fine actions of the human body is quite challenging since it requires both the relatively higher sensitivity and stability of the sensor. Herein, highly sensitive, ultra-stable, and extremely durable piezoresistive wearable sensors were prepared by loading N-doped rGO and polydopamine-coated carbon nanotubes into silicon rubber tube. The wearable sensors thus produced show an excellent ability to sense subtle movement or stimuli with good sensitivity and repeatability. Furthermore, by bending the straight conductive silicon rubber tube (CSRT) into three different patterns, its sensitivity was then dramatically increased. Finally, the CSRT was found capable of sensing cardiorespiratory signals, indicating that the sensor would be an important step toward realizing bio-signal sensing for next-generation personalized health care applications.
研究领域:
材料科学
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生物医学工程
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可穿戴技术
·
医疗保健
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高影响因子
JOURNAL OF ORGANIC CHEMISTRY
·
2021
·
IF 4.354
Yuxiu Li,Xiangqian Li,Xiaowei Li,Dayong Shi
The straightforward synthesis of α-fluoro-β-arylalkenyl sulfones under transition-metal- and base-free conditions has been described, which displays broad functional group compatibility and high stereoselectivity. In particular, the strategy is also applied to the late-stage modification of complex natural products and drugs.
研究领域:
有机化学
·
药物化学
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高影响因子
危险品化学品经营许可证（带存储）