Biotechnology Journal
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2023
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IF 4.7
Haiquan Yang,Kunjie Zhang,Wei Shen,Yuanyuan Xia,Yiting Li,Xianzhong Chen
Cembratriene-ol is a good biodegradable biopesticide ingredient with future potential applications in the field of sustainable agriculture. Cembratriene-ol is a monocyclic diterpenoid compound that is synthesized only in the trichome gland of Nicotiana plants. In this study, geranylgeranyl diphosphate synthase gene ggpps from Taxus canadensis and cbts*Δp were heterologously expressed in Saccharomyces cerevisiae W303-1A to successfully synthesize cembratriene-ol. The titer of cembratriene-ol was increased by 1.84-fold compared to the control by overexpressing the S. cerevisiae bifunctional (2E,6E)-farnesyl diphosphate synthase genes ERG20 and cbts*Δp under one promoter P GAP . The titer of cembratriene-ol in the engineered S. cerevisiae BY4741 was increased by 1.39-fold compared to the engineered S. cerevisiae W303-1A. The titer of cembratriene-ol in the engineered S. cerevisiae BY4741 was increased by 2.22-fold compared to the control by overexpressing ERG20 and cbts*Δp , respectively, using two promoters P GAP . Cembratriene-ol was found to be successfully synthesized via the integrated expression of cbts*Δp , ggpps and ERG20 on the genome of S. cerevisiae BY4741. The titer of cembratriene-ol in S. cerevisiae S25 was further increased by 1.80-fold compared to the control via dynamic control of the squalene synthase gene ERG9 . Overexpression of the genes cbts*Δp and ggpps using pY26-GPD-TEF in S. cerevisiae S25 with their integration expression increased the titer of cembratriene-ol by 26.1-fold compared to S. cerevisiae S25. The titer of cembratriene-ol was significantly enhanced by mitochondrial compartmentalized expression of cbts*Δp and ggpps , which was 76.3-fold higher than that of the initial strain constructed. It was indicated that the systematic optimization has great potential in facilitating high-level production of cembratriene-ol production in S. cerevisiae . This article is protected by copyright. All rights reserved
研究领域:
生物技术
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微生物学
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植物科学
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分子生物学
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代谢工程
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DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2024
·
IF 7.2
Xiaojie Li,Xia Sun,Dongyi Chen,Baiyao Liu,Ruijie Lu,Sijie Yang,Xiao Luo,Biao Xiong,Bing Yu,Ziqing Liu,Yingxiang Dong,Yin Ning
Band gap engineering of a semiconductor in a straightforward and efficient manner is highly desirable, but it remains technically challenging. Herein, we demonstrate a powerful nanoparticle occlusion strategy that enables the band gap of silver phosphate (Ag3PO4) crystals to be readily tailored. Specifically, a series of diblock copolymer nanoparticles of varying morphologies is prepared by polymerization-induced self-assembly (PISA) and subsequently used as a particulate additive during the crystallization of Ag3PO4. Remarkably, these copolymer nanoparticles can be efficiently occluded within Ag3PO4 single crystals, forming organic/inorganic nanocomposite semiconductors whose optical band gap is tunable, depending on the extent of copolymer occlusion. Furthermore, these copolymer nanoparticles can act as “Trojan horses” to incorporate Pd nanoparticles into Ag3PO4, leading to an enhanced photocatalytic degradation of tetracycline under visible-light irradiation. This study provides a brand-new strategy to regulate the band gap of semiconductors, and in principle, it could enable the rational preparation of a wide range of nanocomposite semiconductor materials with controlled properties.
研究领域:
材料科学
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化学工程
·
纳米技术
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DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2021
·
IF 9.811
Qinggang Zhang,Xiaochuan Sun,Weilin Zheng,Qun Wan,Mingming Liu,Xinrong Liao,Takeshi Hagio,Ryoichi Ichino,Long Kong,Huamiao Wang,Liang Li
For next-generation high-definition displays, the newly recommendation 2020 (Rec. 2020) standard calls for the emission wavelength of green emitters to be kept at 525–535 nm with narrow emission line width below 25 nm. All-inorganic lead halide perovskite CsPbBr3 nanocrystals (NCs) with sharp emission seem as the prefect one to match the call, however, it is a great challenge to tune their emission wavelength to the target window of 525–535 nm because of the intrinsic band gap of CsPbBr3. Herein, we report a facile strategy to prepare CsPbBr3 NCs with finely tunable emissions in the narrow range of 525–535 nm by establishing a CsPbBr3–Cs4PbBr6:Na Type II structure. The doping of the Na ions is the key factor to construct the Type II structure, which induces the formation of the Cs4PbBr6:Na phase and builds CsPbBr3–Cs4PbBr6:Na Type II structure, leading to the tunable emission wavelength of CsPbBr3 NCs. The as-synthesized CsPbBr3 NCs exhibit an ideal emission at 525–535 nm with a narrow emission line width of 23 nm and a high photoluminescence quantum yield (PLQY) of 85%. As a green downconverter, an ultrapure green backlight covers 97% of the Rec. 2020 standard in the CIE 1931 color space, representing the “greenest” backlight up to now.
研究领域:
材料科学
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显示技术
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纳米科技
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DOI
高影响因子
RSC Advances
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2012
·Vol. 2
·期 7
·2666-2670
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IF 0
Meina Wang,Xiangyou Liu,Chuanbao Cao,Cui Shi
Cu–In–S ternary nanocrystals (NCs), with an average size of less than 10 nm, were synthesized in an aqueous solution containing bovine serum albumin (BSA). X-Ray powder diffraction (XRD) and selected-area electron diffraction (SAED) analyses showed that these NCs featured a roquesite structure. The composition of the NCs could be adjusted by controlling the molar ratio of the starting Cu/In precursors in the reaction solution, which led to a tunable band gap ranging from 1.48 eV to 2.30 eV. Cytotoxicity testing showed that the BSA-stabilized Cu–In–S NCs had little effect on the cell viability, which suggested that they are user-friendly and environmentally benign. With low cost, minimal energy input and environmental impact, this simple approach shows great potential for industrial applications.
研究领域:
材料科学
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纳米技术
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生物学
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环境科学
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DOI
ACS Catalysis
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2022
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IF 13.7
Kaiwei Liu,Boyang Zhang,Jifang Zhang,Wenrui Lin,Jiaming Wang,Yao Xu,Yao Xiang,Takashi Hisatomi,Kazunari Domen,Guijun Ma
The solid solution of GaN and ZnO (GaN:ZnO) is a promising photocatalyst applicable to visible-light-driven overall water splitting. However, the band gap of active GaN:ZnO remains as large as ca. 2.7 eV because of the loss of ZnO during the widely applied NH3 nitridation process. Herein, particulate GaN:ZnO exhibiting a band gap of 2.3 eV was synthesized via calcination of a mixture of Ga2O3, Zn, and NH4Cl in a sealed evacuated tube. The synthesis method was also featured with a high nitrogen utilization rate of 87%. The prepared narrow-band-gap GaN:ZnO was active in the overall water-splitting reaction. In the presence of sacrificial reagents, the apparent quantum yields of GaN:ZnO at 420 nm for H2 and O2 generation were 5.1 and 14.3%, respectively. GaN:ZnO was applied as an oxygen evolution photocatalyst to construct a Z-scheme overall water-splitting system with SrTiO3:Rh as a hydrogen evolution photocatalyst, which achieved a solar-to-hydrogen energy conversion efficiency of 3.7 × 10–2% and a remarkable photochemical stability up to 100 h. This work provides an approach to the synthesis of narrow-band-gap GaN:ZnO solid solution and shows the potential of this material in H2 production from water under long-wavelength visible light.
研究领域:
材料科学
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光催化技术
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可再生能源
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DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 3
·205
·
IF 4.8
Qiya Liu,Xinsheng Yang,Min Zhang
Magnetic topological insulators (TIs) are promising candidates for realizing the quantum anomalous Hall effect (QAHE) and advancing the development of next-generation low-energy transistors and electronic devices. Doping Bi2Se3with nano-carbon can introduce magnetic order and open the Dirac gap without introducing extrinsic magnetic impurities. In this work, the C0.06Bi2Se3single crystal was prepared using the Bridgman method, and their electrical and magnetotransport properties were systematically investigated. Temperature-dependent resistivity and magnetoresistance measurements revealed a magnetic-field-induced metal–insulator-like transition near 152 K. Angle-resolved photoemission spectroscopy (ARPES) detected an energy gap of about 43 meV at the Dirac point, confirming that carbon doping modulates the surface state and opens the gap. Pronounced Shubnikov–de Haas oscillations indicate high carrier mobility in C0.06Bi2Se3. Furthermore, the temperature-dependent Kerr spectra shows that the spin relaxation behavior of C0.06Bi2Se3differs significantly from that of pure Bi2Se3; the relaxation process of spin electrons from the surface state (τs) dominates the spin dynamics and exhibits distinct trends around 30 K and 150 K due to the interplay of the Dirac gap and impurity-induced states. These results demonstrate the potential of magnetic topological insulator C0.06Bi2Se3for novel electronic and spintronic applications.
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DOI
PubMed
高影响因子
ACS Applied Energy Materials
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2026
·
IF 5.5
Kun Yu,Tian Zhong,JiaWei Zhang,Lu Zhang,Bin Li,Yong Peng
While vapor transport deposition (VTD) enables the growth of PbI2 films at an extremely high rate (>10 nm/s) under low vacuum conditions, the resulting PbI2 films exhibit a highly porous microstructure, which is detrimental to the quality of perovskite films formed via the subsequent spray deposition of formamidinium iodide (FAI). In this work, we developed a solvent modulation approach for ultrasonic spray deposition to improve the quality of the fabricated perovskite films. The Lewis base additive 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone (DMPU) was introduced into the isopropanol (IPA)-based precursor solution to modulate the perovskite crystallization process under spray conditions. DMPU was found to promote the formation of a stable DMPU-PbI2 intermediate phase while residing within the porous VTD-PbI2 films. This intermediate phase was also shown to preferentially form smaller particles, which can fill the pores in the PbI2 scaffold and lead to enhance device performance. Utilizing this strategy, an effective method to enhance the quality of perovskite films was successfully identified, thereby boosting the efficiency of perovskite solar cells fabricated using VTD technology from 12.7% to 13.83%. Furthermore, the unencapsulated devices that were optimized by DMPU maintained over 80% of their initial efficiency after 500 h of aging at 40–50% relative humidity, outperforming the nonoptimized devices.
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DOI
高影响因子
Industrial Chemistry & Materials
·
2025
·
IF 11.9
Longlong Wang,Ruirui Wang,Shuang Wei,Kexin Li,Hasnain Nawaz,bin He,Mengyue Li,Ruixia Liu
Photothermal synergistic catalysis significantly enhances the efficiency of photocatalytic CO2 reduction, offering a promising strategy for accelerated CO2 resource utilization. Herein, a series of CuxInyS photocatalysts were synthesized, exhibiting tunable band gap energy by varying the Cu/In/S atomic ratios for photothermocatalytic CO2 conversion to C2H4. The typical CuInS2 demonstrates a more negative conduction band, significantly enhancing electron reduction ability and facilitating the multi-electron reduction of CO2 to C2H4. Additionally, the high sulfur vacancy in CuInS2 generates additional active sites, enhances charge separation efficiency, and consequently improves catalytic activity. The generation rate of ethylene reaches 45.7 μmol·g-1·h-1 with the selectivity of 79.7%. This study provides a new avenue for producing ethylene in photothermal catalysis, as well as highlights the superiorities of CuInS2 catalyst.
研究领域:
材料科学
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环境科学
·
能源化学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Qi Li,Huiqing Liao,Donghua Wang,Shang Yang,Yi Zeng,Fazheng Qiu,Lijie Jiang
The breach of dielectric-magnetic properties severely impairs the impedance matching and microwave attenuation. Graphene, which possesses superior dielectric and conductive characteristics, has been recognized as a potential electromagnetic (EM) functional material. However, the lack of magnetic response undermines the dielectric-magnetic balance of graphene, eventuating the impedance mismatch and weak microwave attenuation. Modulating the EM parameters to stimulate microwave propagation and attenuation is an ingenious strategy for premium microwave attenuation materials. Herein, the controlled titration chemical reduction and annealing were engaged to facilitate the in-situ growth of Ni nanoparticles on reduced graphene oxide (rGO). The self-assembly Ni/rGO nanocomposites harbor the rich heterointerfaces and reticulum-like microporous to bridge the dielectric-magnetic gap and manipulate well-matched impedance matching. Correspondingly, the maximum reflection loss of −37.5 dB was performed at 2.0 mm, and the effective absorption bandwidth of 5 GHz was achieved within 1.6 mm. Theoretical simulation of radar cross-sectional (RCS) has been developed, and the prominent RCS reduction value of 25.68 dB·m 2 was obtained with the detection theta of 0°. This work is an exciting step forward in the potential for tailoring superior microwave absorption materials through the manipulation of the dielectric-magnetic balances.
研究领域:
材料科学
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纳米技术
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电磁吸收
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化学合成
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产品关联
DOI
高影响因子
Chem
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2023
·
IF 23.5
Yiheng Dai,Zhiheng Zhang,Mathias Daniels,Yu Bao,Jun Guan,Shenghan Zhang,Ruihao Zhou,Yizheng Tan,Lichen Liu,Hai Xiao,Shuxun Cui,Huaping Xu
In contrast to other main group elements, group VI elements are rarely observed to form long linear polymer main chains. We reported the synthesis and characterizations of polytelluoxane, a polymer with an inorganic main chain that constitutes tellurium and oxygen, which may bridge the gap between inorganic oxides and macromolecules. Polytelluoxane has a flexible Te–O backbone and can be facilely synthesized and further processed into macroscopic materials. Because of its unique molecular structure, polytelluoxane is a transparency ultraviolet protection optical material and reveals a photocatalytic activity comparable with commercial catalysts. Moreover, polytelluoxane exhibited effective closed-loop recyclability, with a recycle efficiency of approximately 90% and a recycle number exceeding 10. This work provided a prospective candidate for the development of flexible polymer devices and sustainable functional materials.
研究领域:
高分子化学
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材料科学
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无机化学
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光化学
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可持续材料
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功能材料
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DOI
高影响因子
Device
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2023
·
IF 0
Qiaoyan Ma,Mengen Ma,Liming Liu,Peng Yang,Wujie He,Xing Zhang,Jianzha Zheng,Cuiling Zhang,Chong Liu,Shaohang Wu,Yousheng Wang,Yaohua Mai
The defects presented at three-dimensional wide-band-gap (WBG) perovskites can be passivated by the in situ formed two-dimensional/three-dimensional bulk heterostructures incorporating long-chain alkylamine oleylammonium ligands. As-fabricated WBG perovskite solar minimodules (PSMs) with six subcells connected in series yield record efficiencies of 19.20% and 43.54% with superb high open-circuit voltage ( V oc ) of 7.40 V and 6.49 V (average V oc of 1.233 V and 1.08 V for each subcell) under one-sun and light-emitting diode (1,000 lux and 3,000 K) illumination, respectively. Such results represent an important step in the area of indoor photovoltaics and also further confirm that indoor WBG PSMs have great potential to achieve higher efficiency toward the theoretical limit.
研究领域:
材料科学
·
能源工程
·
光学
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DOI
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Xiaoxia Ma,Changcheng Bao,Lin Shi,Junzhe Xu,Wei Liu,Jimin Han,Li Yang
Al/CuO nanothermite films are prone to cracks/gaps that alter combustion behavior. This study investigates nanothermite films with engineered gaps, focusing on particle advection. Using high-speed microscopy (70,000 fps, submicron resolution), we find gaps induce a “V-shaped” reaction front, boosting the combustion rate by 6-fold (929 vs. 153.8 mm/s for gap-free films). Maximum enhancement occurs at gaps of 0–200 μm, where molten Al 2 O 3 /Cu particles (~4.8 μm in diameter, ~7 m/s in velocity) traverse the gaps to ignite unreacted regions, acting as the primary driver for accelerated combustion. Beyond 200 μm, enhancement diminishes as particles solidify upon cooling to the phase transition temperature, rebound upon reaching the opposite side, and ultimately cause ignition failure. A condensation model with experimental parameters as input explains this phenomenon: Al 2 O 3 solidifies within the 200 μm range, while Cu solidifies within the 600 μm range. Simulation results confirm that combustion acceleration is significant before both particles are fully solidified, with the enhancement diminishing after Al 2 O 3 solidifies and nearly no combustion acceleration occurring after Cu solidifies. These findings clarify the structure-property relationship of energetic films, laying a solid foundation for the regulation of ignition timing based on the gap-burning rate correlation. The prepared lightweight, thin, and coatable films are suitable for microdevices, further opening up a new path for the development of multi-timing complex logic ignition networks.
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DOI
高影响因子
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