RSC Advances
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2015
·Vol. 6
·期 4
·2703-2711
·
IF 3.84
Zhong-Liang Sun,Sheng-Zhang Xue,Cheng-hu Yan,Wei Cong,De-Zhu Kong
CO2 supplementation is usually a limiting factor in microalgal culture systems, especially when flue gases are used as the carbon source. In this study, tris(hydroxymethyl)aminomethane (THAM) was applied as a gas carrier to increase CO2 storage capacity in the culture medium and enhance microalgal biomass production. Abiotic experiments showed that the amount of CO2 absorbed by the medium within the same absorption time increased with increasing THAM concentration, and the gas absorptivity maintained a higher level (>60%) under the neutral pH conditions. Cell growth in shaker flasks illustrated that the biomass productivities of Scenedesmus dimorphus were significantly improved (31 to 66%) when the medium contained 2–8 mmol L−1 THAM. Meanwhile, THAM was not biodegraded during the cultivation. The biomass productivities achieved with 6 mmol L−1 THAM were much higher (32 to 33%) than that with routine culture when it was applied into an open raceway reactor system (2 m2), and the CO2 utilisation efficiency also increased by 6 to 12%. The results show that the addition of THAM as a gas carrier for enhancing CO2 input could be an easy-to-use and cost-effective approach for mass cultivation of microalgae.
研究领域:
环境科学
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生物技术
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藻类学
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Weidong Qin,Junhua Wang,Zhanqiu Tang,Hongyuan Tian,Zhenglong Wu
Quick and efficient immobilization of DNAs on gold nanoclusters (AuNCs) has a substantial impact on nanoscale applications relative to molecular recognition and patterned assembly. We found that in the presence of tris(2-carboxyethyl)phosphine (TCEP), chemisorption of thiolated DNA on the AuNC surface could be accomplished within 1.5 h, which was dramatically shorter than the incubation time needed in the conventional thiolate exchange reactions. Based on this observation, a core-shell-satellite nanocomposite consisting of magnetic nanoparticle , silica coating, and AuNCs (Fe 3 O 4 NPs@SiO 2 @AuNCs) was fabricated, on which a fluorescent hairpin probe was anchored with the assistance of TCEP. Integrated with duplex-specific nuclease (DSN)-assisted target recycling strategy, the sensing platform could simultaneously detect microRNA-21 and microRNA-141 with detection limits of 0.020 and 0.017 pM, respectively. The feasibility of the developed immobilization approach might significantly advance the use of DNAs and AuNCs in analytical sciences and clinical research.
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INORGANIC CHEMISTRY
·
2026
·
IF 4.7
Chaofeng Zhang,Yinhui Yi,Yong Zhao,Gangbing Zhu
This study prepared UiO-66-NH2 MOFs embedded with Ru-tris(2,2′-bipyridyl)(II) hybrids as a nanozyme (designated as Ru/UiO-66-NH2) to propose a bioenzyme-free homogeneous electrochemical (HEC) sensing strategy for detecting organophosphorus pesticides (OPs). Experimental investigation coupled with density functional theory calculation demonstrated that the Ru incorporation significantly amplifies the peroxidase-like (POD-like) activity of UiO-66-NH2 MOFs and that the Ru/UiO-66-NH2 nanozyme exhibits selective responsiveness to coordinate with the OP molecules. Upon OP exposure, the specifical coordination between OPs and MOF structure effectively inhibits the nanozyme’s activity. Utilizing o-phenylenediamine as the catalytic substrate and glyphosate as a model of OPs, the optimized HEC sensor achieves an extensive linear detection range (0.5–10,000 ng/mL) and a low detection limit of 0.13 ng/mL as well as satisfactory recoveries in the real samples of tomato extract and water. It is expected that this innovative bioenzyme-free HEC sensing strategy represents a promising advancement for practical OP residue analysis with potential applications in various fields.
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PubMed
高影响因子
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2017
·Vol. 129
·期 2
·957-964
·
IF 1.953
Zhai Min,Zhang Shiqi,Sui Jian,Tian Fang,Lan Xiao Zheng
To extend the use of phase change materials (PCMs) of those with good performance, tris(hydroxymethyl)aminomethane (THAM) is embedded in silica gels (SG) (pore diameter, d = 15–100 nm) and in controlled porous glasses (CPG) (nominal d = 12–100 nm). The THAM/SG and THAM/CPG composites are characterized by SEM and XRD. Latent heat storage performance of THAM/SG and THAM/CPG is investigated using differential scanning calorimetry, showing size dependence of phase transition temperature, enthalpy change and supercooling. THAM in the nanopores displays stable transition temperature and heat storage capacity in a short-term thermal cycling. The bulk and the nanosized THAM own the same diffraction patterns. The encapsulation of phase change material in nanoporous media is a promising way of tuning the thermal energy properties of those ideal PCMs for use in a wider range of temperature.
研究领域:
材料科学
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热能存储
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纳米材料
·
相变
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高影响因子
ANALYTICA CHIMICA ACTA
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2026
·
IF 6.1
Congkui Tian,Xiaoning Chu,Changsen Man,Yaqian Zhang,Zhihao Dang,Zhuo Liu,Baoping Qi,Yu Liu
Background Leucine aminopeptidase (LAP) is a promising biomarker for the detection and diagnosis of liver diseases encompassing liver cancer and liver injury. Existing assays for LAP activity have limitations, as most of them rely on substrates that are cumbersome to synthesize and fail to amplify the detection signal. Results Initially, L-pAP was synthesized to serve as a substrate for LAP through the condensation of p -aminophenol (pAP) with leucine. LAP triggered the hydrolyzation of L-pAP into pAP, which then reduced colourless Fe 3+ -ferrozine to purple Fe 2+ -ferrozine. Upon addition of tris(2-carboxyethyl)phosphine, the oxidation product p -quinone imine was quickly converted to pAP, which then continuously reduced Fe 3+ -ferrozine to produce substantial amounts of Fe 2+ -ferrozine that could be readily detected as purple using a commercial microplate reader or visual observation. The findings showed that the redox-cycling process greatly lowered the detection limit of LAP to 0.1 U/L, representing 2 orders of magnitude improvement over conventional detection methods. Moreover, we further expanded the feasibility of the proposed process to the assessment of LAP activity in cancer cell lysate. Significance and novelty This work introduces a novel LAP detection method characterized by simple substrate synthesis and high sensitivity. The detection limit of LAP was reduced through the signal amplification strategy of redox cycling. Our research findings provide a powerful chemical tool for LAP detection, offering enormous potential for future biomedical research and diagnosis of related diseases.
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高影响因子
ANALYTICAL CHEMISTRY
·
2026
·
IF 7.3
Fathimath Abbas,Francesca Romana Lauro,Dejana Bešlić,Zhiyong Dong,Solomon Sime Tessema,Tsegu Lijalem,Wenxin Niu,Neso Sojic,Guobao Xu
Over 2 billion microbead-based bioassays by tris(2,2′-bipyridine) ruthenium(II)/tri-n-propylamine (TPrA) electrochemiluminescence (ECL) at a platinum working electrode have been conducted annually. However, TPrA is limited by toxicity, alkaline nature, unpleasant odor, poor solubility, and strong dependence on the electrode material. To the best of our knowledge, amines with rigid, nonplanar configurations reported to date exhibit weak ECL. Triethanolamine borate (TEAB) is an amine with a rigid, nonplanar configuration. It is neutral, odorless, biocompatible, highly soluble, and cost-effective. Here, we report for the first time the ECL of TEAB. Despite its rigid, nonplanar configuration, it unexpectedly produces a 7-fold increase in ECL intensity on platinum electrodes compared with classical TPrA, owing to its favorable electrochemical oxidation kinetics. The use of TEAB as a coreactant enables the highly sensitive detection of Ru(bpy)32+ in solution with a wide linear dynamic range from 1 pM to 1 μM. Furthermore, we imaged the ECL at the surface of single Ru(bpy)32+-labeled microbeads by employing ECL microscopy. Under chronoamperometric conditions, TEAB unprecedentedly exhibits 74- and 60-fold higher ECL than TPrA at 0.925 V as well as 11- and 25-fold higher ECL than TPrA at 1.3 V on Au and Pt electrodes, respectively. These results highlight TEAB as a user-friendly and highly promising alternative to TPrA, with significant potential to advance analytical and diagnostic applications.
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PubMed
高影响因子
Industrial Chemistry & Materials
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2025
·
IF 11.9
Huiyao Huang,Shiquan Zhong,Yawen Chen,Wangquan Gong,Changshen Ye,Jie Chen,Ting Qiu
The semiconductor manufacturing industry imposes stringent requirements on the metal ion content of photoresist resin monomers. Tris(2-carboxyethyl) isocyanurate (H3tci), a critical raw material for photoresist resin monomers, inevitably incorporates metal ions during production. However, its inherent carboxyethyl groups form stable coordination complexes with Cr(III), hindering the semiconductor-grade resin monomer production. To achieve the ultra-deep removal of Cr(III) at ultra-trace concentrations, inspired by the Hard-Soft-Acid-Base theory, we systematically modulated the electron-rich sulfonic acid group on polymers via controlled sulfonation conditions to achieve a novel series of adsorption materials (St) with ultra-high Cr(III) adsorption affinity. The adsorption-recrystallization process using our St-V-15, which exhibited the benchmarked distribution coefficient (Kd) of 1.01×108 mL g-1, could reduce Cr(III) concentration in H3tci from 840 ppb to 24.3 ppb. Furthermore, St-V-15 exhibited a maximum adsorption capacity calculated using the Langmuir model of 126 mg g-1 and a rapid initial adsorption rate of 13.58 mg g-1 min-1 at 298 K. Additionally, St-V-15 demonstrated exceptional selectivity for Cr(III) over competing ions (e.g., K(I), Mg(II), Na(I) and Zn(II)) and maintained stable performance over at least 5 adsorption-desorption cycles. The superior performance originated from the chelation between Cr(III) and the sites of O atoms (S-O and S=O) combined with the electrostatic interaction between deprotonated sulfonic acid groups and Cr(III). These results position St-V-15 as a promising adsorption material for ultra-trace Cr(III) removal in H3tci, offering a cost-effective solution for semiconductor-grade resin monomer production for the very first time.
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JOURNAL OF MATERIALS SCIENCE
·
2017
·Vol. 52
·期 18
·11109-11119
·
IF 2.599
Zhu Hong,Li Rui,Wang Fanghui,Chen Nanjun,Li Ziming,Wang Zhiqian
To improve the conductivity of anion exchange membranes without reducing the mechanical properties, a series of poly ionic liquids (PILs) with precursors of 1,3,5-tris(1-imidazolyl)benzene (TIB) containing tri-conduct groups were synthesized and incorporated into quaternized poly (2,6-dimethyl phenylene oxide) (QPPO) membranes. The new poly ionic liquids we designed contain ternary conduct groups in one monomer which are advantageous to form ionic channels and thus dramatically increase the conductivity of membranes. Various alkyl chains were introduced into TIB during polymerization to tune the distance between two tri-conduct groups. The resulting PILs/QPPO composite membranes showed good thermal stability, appropriate mechanical properties, enhanced conductivity and fuel cell performance. When the numbers of –CH 2 – between two tri-conduct groups reached 12, the composite membrane showed the highest conductivity and fuel cell performance (55.5 mS/cm at 80 °C and 168.9 mW/cm 2 ). The composite membranes we prepared show potential application in anion exchange membrane fuel cells (AEMFCs).
研究领域:
材料科学
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能源工程
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Gangbing Zhu,Diyan Liao,Nian Hu,Jing Li,Yong He,Yinhui Yi
Herein, we proposed a novel bioenzyme-free dual-mode sensing strategy for the rapid and accurate monitoring of organophosphorus pesticides (OPs) by preparing tris(2,2′-bipyridyl) ruthenium(II) (Ru(bpy) 3 2+ ) encapsulated with UiO-66-NH 2 MOFs as nanozyme (Ru@Zr-MOFs). The as-prepared Ru@Zr-MOFs nanozyme not only exhibits superior peroxidase-like activity which can catalyze O-phenylenediamine (OPD) oxidation to generate yellow 2,3-diaminophenazinc, but also exhibits dual-fluorescence feature (at 442 and 612 nm respectively) and specific interaction capacity with OPs. However, in the existence of OPs, the peroxidase-like activity of Ru@Zr-MOFs nanozyme is restricted and the oxidation process of OPD is stopped; meanwhile, the fluorescence of Ru@Zr-MOFs at 442 nm increases rapidly (< 10 s) while that at 612 nm is apathetic, thus a colorimetric and ratiometric fluorescent sensing strategy was first designed to detect OPs by using glyphosate (Gly) as a typical model of OPs. Then, in consideration of the benefits of smartphone which can make the sensing process more convenient, stable, rapid and sensitive feedback, a smartphone coupled with hydrogel detection platform was proposed also for OPs determination. In addition, the designed sensing strategy offers superior selectivity , stability and real application capabilities. It’s thus expected the as-designed Ru@Zr-MOFs nanozyme based dual-mode sensing strategy possesses important real application for the low-cost, rapid, sensitive and accurate determination of OPs.
研究领域:
分析化学
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环境科学
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食品科学
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高影响因子
POLYMER
·
2024
·
IF 4.1
Zequn Sun,Rongda Zhang,Yibo Sun,Xingmei Wang,Lijie Duan,Guanghui Gao
Although soft contact lenses can be adapted to fit different people's eyes, their lack of durability and susceptibility to breakage still exist. The effect of N -vinyl-pyrrolidone (NVP) and 3-[Tris(trimethylsiloxy)silyl] propyl methacrylate (TRIS) on the performance of conventional PMMA rigid contact lenses was investigated in this study. Unlike PMMA rigid contact lenses, we used in-situ copolymerization by introducing the hydrophilic NVP and the silicone-containing monomer TRIS into the molecular chain. We utilized the silicone element in the molecular chain of the copolymer, which has an affinity for oxygen, and the five-membered ring of NVP to allow water molecules to enter the poly(MMA-NVP-TRIS) contact lenses, creating dual channels of a water channel and a silicone channel to transport oxygen. The modified PMMA-based materials were under analysis for their structural, optical, mechanical and transparency features, such as light transmittance, oxygen permeability, and equilibrium water content and so on. Moreover, it was found that the introduction of NVP increased the surface wettability and water content of this material and that the introduction of TRIS increased the oxygen transmission value of this material. In addition, the oxygen transmissibility of poly(MMA-NVP-TRIS) contact lens was twice as high as that of soft commercial contact lenses (CCLs) and we used CCLs as a comparison to evaluate other comprehensive performances visually.
研究领域:
材料科学
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高分子化学
·
视光学
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高影响因子
ELECTROANALYSIS
·
2018
·Vol. 31
·期 3
·512-517
·
IF 2.851
Qianwei Shi,Yuanjie Teng,Zhenzhen Hu,Yuchao Zhang,Wenhan Liu
In this work, the modified Prussian blue (PB) film showed more stable performance in alkaline solution by one-step electrodepositon of PB with tris(hydroxymethyl) aminomethane (Tris) on screen-printed electrode (SPE). The morphology and structure of the modified Tris-PB/SPE was characterized by scanning electronic microscopy, infra spectroscopy, Raman spectroscopy and X-ray diffraction. It was inferred that the Tris particles embedded in the PB deposit layer resulted in the change of PB structure and improve its stability in alkaline solution. And then, the modified Tris-PB/SPE was applied in the detection of Glycosylated hemoglobin (HbA1c). The optimum experimental conditions are pH 7.5, 100 mV/s, 4 μL FAOD and 5 min reaction time. The linearship of HbA1c is i=22.90 C+101.9 in the range of 0.1–2 mmol/L. Comparing with PB/SPE, Tris-PB/SPE shows better sensitivity and recovery.
研究领域:
生物化学
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医学检测
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材料科学
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高影响因子
HYDROMETALLURGY
·
2019
·
IF 3.465
Kai Li,Ji Chen,Dan Zou,Yuefeng Deng,Deqian Li
The extraction of cerium(IV) (Ce(IV)) from a nitric acid (HNO 3 ) system using a novel extractant, tris(2-ethylhexyl)phosphine oxide (TEHPO), was studied. The separation factors of Ce(IV)/Th(IV) and Ce(IV)/Ln(III) (La 3+ , Gd 3+ and Lu 3+ ) were found to be in the range of 60–127 and 121–827, respectively, in the HNO 3 concentration range of 0.5–5.0 mol/L, showing high selectivity with TEHPO. The experimental results showed that TEHPO can effectively extract Ce(IV) from a HNO 3 system quantitatively in a 2:1 form (molar ratio of TEHPO: Ce(IV)), which is unrelated to the experimental conditions, that is, factors such as HNO 3 concentration, extractant concentration, and temperature. The loaded Th(IV) could be stripped efficiently using H 2 O, but Ce(IV) should be stripped using H 2 O 2 . The extraction mechanisms of HNO 3 and Ce(IV) with TEHPO were determined through the slope analysis method, infrared spectroscopy (FT-IR), and electrospray ionization mass spectrometry (ESI-MS), and the extracted complexes were found to be HNO 3 ·TEHPO and Ce(NO 3 ) 4 ·2TEHPO. Comparison of their extraction performances revealed that TEHPO shows a better interfacial phenomenon and higher extraction ability and saturation loading capacity than those of Cyanex923.
研究领域:
化学工程
·
环境科学
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高影响因子
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