Recycling Acetic Acid from Polarizing Film of Waste Liquid Crystal Display Panels by Sub/Supercritical Water Treatments

Waste liquid crystal display (LCD) panels mainly contain inorganic materials (glass substrate) and organic materials (polarizing film and liquid crystal). The organic materials should be removed first since containing polarizing film and liquid crystal is to the disadvantage of the indium recycling process. In the present study, an efficient and environmentally friendly process to obtain acetic acid from waste LCD panels by sub/supercritical water treatments is investigated. Furthermore, a well-founded reaction mechanism is proposed. Several highlights of this study are summarized as follows: (i) 99.77% of organic matters are removed, which means the present technology is quite efficient to recycle the organic matters; (ii) a yield of 78.23% acetic acid, a quite important fossil energy based chemical product is obtained, which can reduce the consumption of fossil energy for producing acetic acid; (iii) supercritical water acts as an ideal solvent, a requisite reactant as well as an efficient acid–base catalyst, and this is quite significant in accordance with the “Principles of Green Chemistry”. In a word, the organic matters of waste LCD panels are recycled without environmental pollution. Meanwhile, this study provides new opportunities for alternating fossil-based chemical products for sustainable development, converting “waste” into “fossil-based chemicals”

sj-pdf-1-chl-10.1177_17475198241234629 – Supplemental material for Design, synthesis, and insecticidal activities of the novel sulfur-containing meta-amide compounds as potential pesticides

Supplemental material, sj-pdf-1-chl-10.1177_17475198241234629 for Design, synthesis, and insecticidal activities of the novel sulfur-containing meta-amide compounds as potential pesticides by Yan Zhang, Jingwen Wu, Shuaihui Dang, Sha Zhou, Jifen Wang and Ruixue Wang in Journal of Chemical Research</p

Carbon Quantum Dot-Functionalized Aerogels for NO₂ Gas Sensing

Silica aerogels functionalized with strongly fluorescent carbon quantum dots were first prepared and used for simple, sensitive, and selective sensing of NO₂ gas. In the presence of ethanol, homemade silica aerogels with a large specific surface area of 801.17 m²/g were functionalized with branched polyethylenimine-capped quantum dots (BPEI-CQDs) with fluorescence quantum yield higher than 40%. The prepared porous CQD-aerogel hybrid material could maintain its excellent fluorescence (FL) activity in its solid state. The FL of CQD-aerogel hybrid material could be selectively and sensitively quenched by NO₂ gas, suggesting a promising application of the new FL-functionalized aerogels in gas sensing

Comparative analysis of expansin gene codon usage patterns among eight plant species

<p>Expansins are essential components of plant cell wall and play an important role in plant growth, development, and stress resistance via loosening function. To understand the codon usage pattern of expansin genes, we gained the sequence data of expansin genes from eight plant species. Statistics analysis showed obvious codon characteristics between monocot and dicot plants. Comparably, expansin genes in monocot plants had really higher GC content, more high-frequency codons, and more optimal codons than that in dicot plants. Several monocot plants performed somehow as dicot plants in a few characters. Codon information of expansin genes might contribute to the understanding of the relationship and evolution clues between monocot and dicot plants. It further gained insight into the improvement of the gene expression and roles.</p

Datasheet1_Effects of high-intensity interval exercise on arterial stiffness in individuals at risk for cardiovascular disease: a meta-analysis.docx

ObjectiveThe purpose of this meta-analysis was to investigate the effect of high-intensity interval training (HIIT) on arterial stiffness (AS) and vascular function in persons at high risk of cardiovascular disease (CVD).MethodsWe conducted a comprehensive search of randomized controlled trials (RCTs) published in electronic databases (PubMed, Web of Science, Cochrane, Embase, and Ebsco) since their inception through October 2023 to evaluate the effect of HIIT on AS and vascular function in persons at high risk for CVD. The weighted mean difference (WMD) and 95% confidence intervals (95% CI) were calculated, and heterogeneity was assessed using the I2 test.ResultsThis study included 661 participants from 16 studies. HIIT significantly reduced pulse wave velocity (PWV) in persons at high risk for CVD [weighted mean difference (WMD), −0.62; 95% CI, −0.86–−0.38; P ConclusionHIIT can improve PWV in high-risk individuals with CVD and reduce SBP, DBP, and RHR, but has no significant effect on AIX. HIIT can effectively improve AS and vascular function and can be recommended as an effective method to improve AS in high-risk persons with CVD.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO/, identifier: CRD42023471593.</p

Polyamine-Functionalized Carbon Quantum Dots as Fluorescent Probes for Selective and Sensitive Detection of Copper Ions

A novel sensing system has been designed for Cu²⁺ ion detection based on the quenched fluorescence (FL) signal of branched poly­(ethylenimine) (BPEI)-functionalized carbon quantum dots (CQDs). Cu²⁺ ions can be captured by the amino groups of the BPEI-CQDs to form an absorbent complex at the surface of CQDs, resulting in a strong quenching of the CQDs’ FL via an inner filter effect. Herein, we have demonstrated that this facile methodology can offer a rapid, reliable, and selective detection of Cu²⁺ with a detection limit as low as 6 nM and a dynamic range from 10 to 1100 nM. Furthermore, the detection results for Cu²⁺ ions in a river water sample obtained by this sensing system agreed well with that by inductively couple plasma mass spectrometry, suggesting the potential application of this sensing system

Administration of curcumin protects CBA/J mice from the development of ALI/ARDS in response to reovirus 1/L.

<p>CBA/J mice were inoculated i.n. with 10⁷pfu reovirus 1/L and were either untreated (−) or treated (+) with 50 mg/kg curcumin by i.p. injection beginning 5 days prior to infection and daily, thereafter. Whole lungs were removed at the indicated time points, fixed in 2% paraformaldehyde and embedded in paraffin. Staining was performed on 4-micron sections. (A) H&E Staining on days 9 and 14; (B) Mason's Trichrome and Sirius Red Staining on day 14. Objective magnification: 10X (A) and 20X (B). Representative of at least four independent experiments evaluating 3 mice per time point.</p

Administration of curcumin modulates the phosphorylation status of the p65 subunit of NFkB and p38 MAPK.

<p>CBA/J mice were inoculated i.n. with 10⁷pfu reovirus 1/L and were either untreated (−) or treated (+) with 50 mg/kg curcumin by i.p. injection beginning 5 days prior to infection and daily, thereafter. (A) On day 9 post-inoculation, protein was extracted from whole lung tissue from untreated (−) or curcumin-treated (+) reovirus 1/L-ALI/ARDS mice and analyzed for the expression of phosphorylated p38 (P-p38) and phosphorylated p65-NFκB (P-p65-NFκB) by western analysis. Saline inoculated mice were used as controls (S). Analysis of ß actin was performed to demonstrate equal loading. Representative of two experiments with three mice per time point. (B) Relative expression of P-p38 and P-p65-NFκB was determined by comparing their expression to that of ß-actin. Histograms represent densitometric data from the mean +/− SD autoradiogram signals from three mice for the saline, untreated (−, solid) or curcumin-treated (+, open) reovirus 1/L-ALI/ARDS*p<0.05 versus saline (control), **p<.0.05 versus reovirus 1/L-ALI/ARDS.</p

Administration of curcumin modulates TGFß RII expression during reovirus 1/L-ALI/ARDS.

<p>CBA/J mice were inoculated i.n. with 10⁷pfu reovirus 1/L and were either untreated (−, solid bars) or treated (+, open bars) with 50 mg/kg curcumin by i.p. injection beginning 5 days prior to infection and daily, thereafter. At the indicated time points, RNA was prepared from whole lung tissue and the relative expression of (A) TGFß1 was assessed by RT-PCR; (B) TGFß1 and TGFß RII mRNA expression was also assessed by qRT-PCR. Saline inoculated mice were used as controls (S, stippled bars). Histograms are the mean +/−S.D. of two experiments with three mice per time point. *p<0.05 versus saline (control), **p<0.05 versus reovirus 1/L-ALI/ARDS.</p

Primers used for qRT-PCR and RT-PCR.

<p>Primers used for qRT-PCR and RT-PCR.</p