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Objective This study aime to investigate the clinical status of opioid free with spontaneous breathing anesthesia in the treatment of palmar hyperhidrosis through thoracic sympathectomy under thoracoscopy. Methods A total of 93 patients with palmar hyperhidrosis who underwent elective surgery with general anesthesia were randomly divided into control group (group C) and observation group (group O). In group C, patients were treated with propofol, sufentanil, and cisatracurium. In group O, patients were anesthetized with propofol, dexmedetomidine, and thoracic paravertebral block. The changes of vital signs and blood gas indicators between two groups before anesthesia (T1), at the time of skin incision (T2), after surgery (T3), and leaving the operating room (T4) were observed. The visual analog scale (VAS) of patients immediately after awakening (P1), leaving the operating room (P2), 2 hours (P3), 6 hours (P4), and 24 hours after surgery (P5) were recorded. The occurrence of perioperative anesthesia related complications, postoperative recovery time and patients' satisfaction were also observed. Results There was no case of surgical interruption due to anesthesia or anesthesia methods changing during the perioperative period. And no significant difference in the changes of sedation and pain index was observed between two groups (P > 0.05). However, in group O, the VAS scores were higher at P1 and P4 (P > 0.05), PH was lower, PCO2 and BG were higher at T2 (P < 0.05), and the incidence of perioperative hypertension and tachycardia was higher (P < 0.05). There were no statistically significant difference in postoperative recovery time and patient's satisfaction between these two groups (P > 0.05). Conclusion The implementation of opioid free with spontaneous breathing anesthesia strategy in day surgery for palmar hyperhidrosis is safe and feasible but the application of this strategy has no significant advantages in clinical practice of day surgery. [ABSTRACT FROM AUTHOR]

Recently, the development of fluorescent sensors to selectively and sensitively detect F− in drinking water has attracted great attention due to the serious harm caused by excessive F− to human bones, kidneys and even DNA. The advantage of a dual emission fluorescent sensor for its fluorescence color change in visualization is well known. In this work, we rationally designed a dual-emitting metal organic framework (MOF) (Eu/Sc)-EBTC, which showed ligand-based emission and Eu3+-based emission and exhibited high selectivity and sensitivity to F− (limit of detection = 16.4 ppb). The sensing mechanism was ascribed to the high affinity between F− and Eu3+ in (Eu/Sc)-EBTC, and was confirmed by PXRD patterns and X-ray photoelectron spectroscopy. Besides, a test strip was made successfully for the practical detection of F−. This study demonstrates the potential of a dual-emission fluorescent MOF sensor for practical applications. [ABSTRACT FROM AUTHOR]

Objective: Cervical cancer screening participation in China remains insufficient, possibly because of embarrassment or discomfort. We assessed knowledge of HPV and its link to cervical cancer, and whether HPV self-sampling might be an acceptable alternative to clinician-based screening, among Sichuan women. Methods: A sample of healthy women undergoing routine physical examinations in 2017 at the West China Hospital, Sichuan University, completed a questionnaire. Results: From 3000 questionnaires distributed, 1810 were completed and analyzed. Only 29.94% of respondents (n = 542) had heard of HPV, among whom 65.75% knew that it caused cervical cancer. Among the 766 (42.32%) who considered that HPV self-sampling for cervical cancer screening was an acceptable option, over 90% thought it would be convenient, private, not embarrassing, and not painful. However, 1044 women (57.68%) did not consider self-sampling acceptable, mainly because the result might not be accurate (85.63%), specimens may have gone bad (83.05%), and they may not perform the test correctly (79.98%). Respondents who believed HPV self-sampling was acceptable were more likely than other respondents to be young, and to have completed at least secondary education. Of the 1810 respondents, 1312 (72.49%) reported that they would be willing to be vaccinated against HPV. Conclusion: Most women in Chengdu lack basic knowledge about HPV. Over 40% of women believed HPV self-sampling for cervical cancer screening was an acceptable option. To increase screening coverage, public health efforts to educate the public about HPV and HPV self-sampling for cervical cancer screening should be strengthened and expanded. [ABSTRACT FROM AUTHOR]

Fe3O4 nanospheres (Fe3O4-S) synthesized via a facile one-pot solvothermal method were used for H2O2 activation and tetracycline (TC) elimination from aqueous solutions. It can be found that more than 80% of TC was degraded in the Fe3O4-S/H2O2 system. Besides, batch experiments were conducted to investigate the effects of different parameters such as catalyst dosages, H2O2 concentration, pH values and temperature on the degradation of TC, and these experimental results were also described by the pseudo-first-order model. Radical quenching experiments and an electron paramagnetic resonance (EPR) technique revealed that ˙OH and ˙O2−/˙HO2 were involved and ˙OH generated on the surface of Fe3O4-S played a main role in TC degradation. The XPS observations demonstrated that the surface FeII participated in the H2O2 activation through the redox reactions. Moreover, thirteen intermediate products were monitored by the LC–MS and possible degradation pathways of TC were accordingly proposed. The Fe3O4-S catalyst exhibited good reusability and the catalytic performance of it did not show any significant decrease even after five trials. It was worth noting that the optimal pH for TC degradation was expanded to neutral pH conditions by using the Fe3O4-S/H2O2 system. Additionally, Fe3O4-S was easily separated from the reaction solutions by virtue of its magnetism (66.8 emu g−1), which is beneficial for reuse of the catalysts. [ABSTRACT FROM AUTHOR]

A biocompatible and uniquely defined hydroxyapatite (HAP) adsorption membrane with a sandwich structure was developed for the removal of organic micropollutants for the first time. Both the adsorption and membrane technique were used for the removal of organic micropollutants. The hydrophilicity and hydrophobicity of the HAP adsorbent and membrane were tunable by controlling the surface structure of HAP. The adsorption of organic micropollutants on the HAP adsorbent was studied in batch experiments. The adsorption process was fit with the Freundlich model, while the adsorption kinetics followed the pseudo-second-order model. The HAP membrane could remove organic micropollutants effectively by dynamic adsorption in both aqueous and ethanol solutions. The removal efficiencies of organic micropollutants depended on the solution composition, membrane thickness and hydrophilicity, flow rate, and the initial concentration of organic micropollutants. The adsorption capacities of the HAP membrane with a sandwich structure (membrane thickness was 0.3 mm) were 6700, 6510, 6310, 5960, 5490, 5230, 4980 and 4360 L m −2 for 1-naphthyl amine, 2-naphthol, bisphenol S, propranolol hydrochloride, metolachlor, ethinyl oestradiol, 2,4-dichlorophenol and bisphenol A, respectively, when the initial concentration was 3.0 mg L −1 . The biocompatible HAP adsorption membrane can be easily regenerated by methanol and was thus demonstrated to be a novel concept for the removal of organic micropollutants from both aqueous and organic solutions. [ABSTRACT FROM AUTHOR]

A novel graphitic carbon nitride (g-C 3 N 4 ) nanosheet adsorbent with a large surface area, remarkable hydrophilicity and high adsorption capacity, was presented for the removal of cadmium ions (Cd 2+ ) and methylene blue (MB) from aqueous solution. Adsorption measurements were conducted systematically to study the influences of the contact time, initial concentrations of Cd 2+ and MB, temperature, and pH value. The maximum adsorption capacities of g-C 3 N 4 towards Cd 2+ and MB were 94.4 and 42.1 mg g −1 , respectively, at 318.5 K when the initial concentrations of Cd 2+ and MB were 200 and 20 mg L −1 , respectively. The adsorption kinetics fit a pseudo-second-order model. The high adsorption performance of the g-C 3 N 4 adsorbent can be attributed to the multiple adsorption sites on g-C 3 N 4 , including the π-π conjugate interactions and electrostatic attractions with pollutants in water. In addition, it is significant to achieve high adsorption performance of g-C 3 N 4 nanosheets by efficiently exposing the adsorption sites by adjusting the microstructure surface properties and dispersity in solution. [ABSTRACT FROM AUTHOR]

• Recent developments in fluoride removal from water by adsorption are reviewed. • Four technical strategies are proposed for designing of adsorbents. • Transfering the adsorption process to industrial scale is urgently needed. • Fluoride adsorption and desorption in field condition need further investigation. Fluoride contamination in water environment due to natural and artificial activities has been recognized as one of the major problems worldwide. Developing effective and robust technologies for excess fluoride removal from water environment becomes highly important. Among the commonly used treatment technologies applied for fluoride removal, adsorption technique has been explored widely and offers a highly efficient simple and low-cost process for fluoride removal from water. This review reports the recent developments in fluoride removal from water environment by adsorption methods. Studies on fluoride removal from aqueous solutions using various carbon materials are reviewed. It is evident that various adsorbents with high fluoride removal capacity have been developed, however, there is still an urgent need to transfer the removal process to industrial scale. Regeneration studies need to be performed in more extent to recover the adsorbent in field conditions, enhancing the economic feasibility of the process. Based on the review, four technical strategies of adsorption method including nano-surface effect, structural memory effect, anti-competitive adsorption and ionic sieve effect can be proposed. The design of adsorbents through these four strategies can greatly improve the removal efficiency of fluoride in water and provide guidance for the development of new efficient methods for fluoride removal in the future. [ABSTRACT FROM AUTHOR]

Graphical abstract Abstract Consumption of water having excessive arsenic (As) contamination can cause adverse health effects on human beings. In this study, novel ultra-large zirconium oxide (ZrO 2) nanosheets were successfully synthesized using graphene oxide (GO) templates and their adsorption-ability was studied for arsenite (As(III)). Owing to higher values of surface area, numbers of available hydroxyl groups and strong chemisorption binding affinity towards As(III), the synthesized novel ultra-large ZrO 2 nanosheets showed high adsorption-ability for As(III) over a wide pH range. Experimental results demonstrated that the maximum adsorption-ability of the ZrO 2 nanosheets for As(III) reached to 74.9 mg/g at pH 6. BET, zeta potential, effect of initial pH, FTIR and XPS have been used to analyze the As(III) adsorption process on the ZrO 2 nanosheets. The experiments for effects of co-existing ions indicated that ZrO 2 nanosheets possessed good anti-interference ability towards co-existing ions. Furthermore, the ZrO 2 nanosheets demonstrated very fast and excellent treatment of simulated real As(III) polluted water, consequently the effluent concentration met the standard regulated by World Health Organization. This study suggested that the as-prepared ZrO 2 nanosheets could be potentially applied in practical drinking water treatment. [ABSTRACT FROM AUTHOR]

Increasing exposure to arsenic (As) contaminated ground water has become a global health hazard to humanity. Suitable adsorbent for As removal from water, especially for As(III) than As(V), is an urgent but still a challenging task. In this study, waste orange peel (OP) was modified with magnetic nanoparticles followed by calcination as a novel adsorbent and investigated for instantaneous oxidation and adsorption of As(III) from aqueous solutions. The batch adsorption experimental results showed that calcined magnetic orange peel composites (CMOPC) exhibited superior As(III) adsorption capacity (10.3 mg/g) as compared to similar cost effective adsorbents due to its high surface area, large pore size and greater numbers of active sites on its surface. The adsorption equilibrium data obeyed Langmuir model, and kinetic data was well described by the pseudo-second-order model. The adsorption mechanisms for As(III) might be involved ligand exchange of the hydroxyl in CMOPC to form Fe-O-As(III), and partial As(III) oxidation to As(V) followed by instantaneous adsorption on surface of CMOPC. The developed adsorbent has also demonstrated good anti-interference ability to co-existing ions, admirable regeneration ability and pronounced capacity in treating simulated real As(III) contaminated water. This study revealed that waste orange peel, after simple treatment could be used as a potential adsorbent for As(III) from aqueous solutions. [ABSTRACT FROM AUTHOR]

• Highly active surface exposed CoFe 2 O 4 catalyst was successfully prepared. • The degradation rate of DC was extremely fast in the first 2 min. • CoFe 2 O 4 /H 2 O 2 system widened pH application limit to the neutral condition. • The prepared CoFe 2 O 4 with high stability can be easily recycled and reused. • Probable transformation pathways of DC degradation were clarified. Heterogeneous Fenton technology is considered to be an effective method to solve the issues of antibiotic pollutants. In this study, a highly active surface exposed CoFe 2 O 4 catalyst was fabricated to activate hydrogen peroxide (H 2 O 2) to degrade aqueous doxycycline (DC). Batch experiments investigated the influence of different factors such as CoFe 2 O 4 dosage, H 2 O 2 dosage, contaminant concentration and pH on DC elimination. Remarkably, the results showed that 1.2 g/L CoFe 2 O 4 with 10 mM H 2 O 2 could quickly remove 92% DC of 20 ppm under neutral pH conditions in 10 min, and after 5 cycles, the removal of DC still remained above 85%. DMPO-X signals captured by EPR illustrated abundant hydroxyl radicals (OH) were produced in the surface CoFe 2 O 4 /H 2 O 2 system swiftly and that was the dominant active oxygen species in the degradation of DC. The valence changes of Co3+/Co2+ and Fe3+/Fe2+ appeared on the surface of CoFe 2 O 4 provided many electrons to participate in the process of activating H 2 O 2. Density functional theory (DFT) calculation was conducted to reveal preferable sites of different atoms on DC for radicals attacking. Combined with LC-MS analysis, two possible degradation pathways were proposed. [ABSTRACT FROM AUTHOR]

Removing heavy metals from aqueous solutions has drawn more and more attentions these years because of their serious global health challenge to human society. To develop an adsorbent with low-cost and high-efficiency for removal of heavy metals (HMs), β-cyclodextrin (β-CD) polymers crosslinked with rigid aromatic groups were prepared and used for lead (Pb), copper (Cu) and cadmium (Cd) removal for the first time. The negatively charged β-CD polymers with large BET surface area were suitable to be used in HMs adsorption. The adsorption process completed in 5 min was well fit by Freundlich isotherm model and pseudo-second-order model. The intraparticle diffusion model was also appropriate to describe the adsorption of Pb, Cu and Cd on β-CD polymer. The maximum of adsorption capacities at 25 °C for Pb, Cu and Cd were 196.42, 164.43 and 136.43 mg/g when the initial concentration was 200 mg/L. The HMs adsorption process on the surface of β-CD polymer was an endothermic and spontaneous process. Both of the electrostatic interaction and distribution of Pb, Cu and Cd species influenced the adsorption process at different pH values. The order of removal efficiencies in multi-component adsorption for the three metal ions were Pb > Cu > Cd. The adsorption mechanisms were H + ions on hydroxyl groups exchanged with heavy metal ions and electrostatic interactions. This study indicated that β-CD polymers could be developed into effective adsorbents for rapid removal of heavy metals. [ABSTRACT FROM AUTHOR]

• A novel magnetic porous carbon coated iron manganese oxides (MnFeO@C) was fabricated. • The carbon film was beneficial to adsorption of bisphenol A and flow of electrons. • BPA was effectively degraded in a broad pH range (3.0–10.0) by MnFeO@C/PMS system. • Over 95% of BPA was degraded in 30 min and exhibited recycle stability. Developing highly-effective catalysts through a facile method for activating peroxymonosulfate (PMS) to degrade recalcitrant pollutants is highly desirable. In this work, porous carbon-coated iron-manganese oxides (MnFeO@C) was facilely synthesized. The porous carbon film on the surface of MnFeO@C was beneficial to adsorption of bisphenol A (BPA) and flow of electrons. The catalytic degradation performance toward BPA was significantly improved with the increase of surface roughness and porosity of MnFeO@C after calcination. In particular, MnFeO@C derived at 300 °C (MnFeO@C-300) exhibited the highest degradation rate benefiting from the existence of Mn 2 O 3. More than 95% BPA could be removed in 30 min by MnFeO@C-300/PMS system and remained efficient in a wide pH range from 3.0 to 10.0, especially in alkaline conditions. The intermediates of BPA degradation were identified and the degradation pathways involved hydroxyl oxidation and benzene ring-opening were proposed based on GC–MS results. The removal rate of BPA can maintain more than 80% following five cycles. Thus, the as-prepared MnFeO@C-300 composites are available to serve as efficient and eco-friendly catalysts for advanced catalytic oxidation of recalcitrant pollutants. [ABSTRACT FROM AUTHOR]

• Novel catalyst CoFe-ONSs were prepared to activate H 2 O 2 for TC degradation. • 83.5% of TC could be removed at neutral conditions by CoFe-ONSs/H 2 O 2 system. • Hydroxyl (OH) radicals were responsible for TC degradation. • Catalytic mechanism was comprehensively discussed. • Intermediate compounds and possible transformation pathways were proved. Ultrathin iron-cobalt oxide nanosheets (CoFe-ONSs) synthesized via a facile one-step routine by using NaBH 4 as the reductant were used for H 2 O 2 activation and tetracycline (TC) elimination. The CoFe-ONSs realized 83.5% removal of TC under the neutral conditions after 50 min with 0.3 g/L catalyst, 20 mM H 2 O 2 and 50 mg/L TC. The effects of catalyst dosage, H 2 O 2 concentration, initial pH, temperature, initial TC concentration, anions and water sources on TC degradation were studied. Hydroxyl (OH) radicals were the main active species in the entire reaction, which was demonstrated by quenching experiments, fluorescence detection and the electron paramagnetic resonance (EPR) technology. Additionally, the redox cycles of FeII/FeIII and CoII/CoIII were participated in OH generation. What's more, the plausible degradation pathways were put forward followed with detected intermediates. The CoFe-ONSs displayed negligible iron ions leaching and held high TC elimination performance even after five trials. Therefore, the CoFe-ONSs may expand the heterogeneous Fenton-like catalysts family and display great potential in eliminating antibiotic contaminants from wastewater. [ABSTRACT FROM AUTHOR]

• UiO-66-NH 2 can effectively remove norfloxacin in water. • UiO-66-NH 2 can remove norfloxacin well in the neutral pH range. • The NH 2 and Zr O bonds play important role for norfloxacin removal. • Various adsorption mechanisms for norfloxacin removal are explored. Antibiotics abuse has been a significant threat to the environment and human health. In this study, we successfully synthesized highly stable amino-functionalized Zr-based metal–organic frameworks (UiO-66-NH 2) and studied the adsorption behaviors of norfloxacin (NOR) in water. The adsorption capacities of UiO-66-NH 2 reached a maximum of 222.5 mg/g for NOR, which were considerably higher than that of most reported adsorbents. Moreover, the equilibrium time (6 h) was less than that of several previously reported adsorbents. Ionic-strength-influenced experiments showed that NaCl and CaCl 2 aqueous solutions could improve the removal efficiency of NOR. The presence of humic acid could barely affect the adsorption amount. At a concentration of 10 mg/L, the highest partition coefficient of 20.9 mg/g/µM was obtained, and the removal rate of NOR was as high as 91.6%, implying that UiO-66-NH 2 offered considerable adsorption performance at a low concentration of NOR. In addition, UiO-66-NH 2 exhibited good regeneration efficiency, thus offering the possibility to remove norfloxacin from sewage. Finally, several credible adsorption mechanisms were proposed. The results will aid us to comprehend the surface interaction between organic micropollutants and UiO-66-NH 2 and prefigure the potential of UiO-66-NH 2 as a novel adsorbent for the removal of NOR. [ABSTRACT FROM AUTHOR]

We aim to investigate the correlation of the position of the transferred air bubble with the clinical pregnancy rate (PR) in frozen-thawed embryo transfer(FET) cycles. A prospective clinical study was carried out at Reproductive medicine center of West China Second University Hospital between June 2020 and May 2021. 1159 women underwent FET were included in this study. Transabdominal ultrasonographic guidance was used during the transfer procedure. The distance from the air bubble to endometrial cavity fundus（DAF）was measured in the freeze-frame ultrasound immediately after ET. In group DAF ≤3mm, 3-15mm and ≥15mm, the clinical PR in women transferred with cleavage embryos were 33.3% (7/21), 55.0% (153/280), and 31.3% (5/16), respectively, the difference was statistically significant (P＜0.05). Among women transferred with blastocysts, the clinical PR was 63.0% (34/54), 68.5% (485/708) and 55.0% (44/80), respectively, the difference was statistically significant (P＜0.05). In multivariate logistic regression model for clinical PR, the clinical PR was associated with age, embryo quality, number of embryo transferred, and endometrial thickness. DAF was an independent risk factor influencing clinical PR in blastocysts FET cycles rather than in cleavage embryos FET cycles.In conclusion, our results suggested that DAF was associated with the clinical PR and DAF between 3mm and 15mm is the optimal position in blastocysts FET cycles.