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The aim of our study was to compare objective and subjective outcomes in women with stress urinary incontinence (SUI) submitted to either trans-obturator sling (TVT-ABBREVO®) or single incision mini-sling (SIMS-ALTIS®) at 5-year follow up.A monocentric, retrospective study including women with isolated SUI and with concomitant proved urodynamic stress incontinence (USI), treated with an TVT-ABBREVO® or SIMS-ALTIS®. At 60-month follow up each woman was assessed subjectively, with two validated questionnaires (UDI-6 and ICQI-SF), and objectively with a cough stress test. Adverse events were collected.Forty-two patients were evaluated in the ABBREVO® group and 58 in the ALTIS® group. No significant difference was found in subjective (88.1% vs 89.7%, p = 0.806) and objective (81.0% vs 86.2%, p = 0.479) cure rates between the two groups. Subjectively, improvement in urinary distress after surgery resulted statistically significant in both groups compared to baseline (p 0.001). Long-term post-operative complications rate (i.e. de novo OAB and sling exposure) was similar in the two groups. They were, in fact, mainly classified as Dindo II grade and conservatively managed (i.e. antimuscarinics or βThis comparative study did not reveal significant difference between single-incision (ALTIS®) and trans-obturator (TVT-ABBREVO®) slings in terms of efficacy and morbidity at 5-year follow up.

Biodegradable and eco-friendly adsorbents composed of natural carbohydrates have been used to replace carbon-based materials. This study presents a natural carbohydrate-based chitosan/pectin (CS/Pec) hydrogel adsorbent to remove Pb(II) from aqueous solutions. The physical CS/Pec hydrogel was prepared by blending aqueous CS and Pec solutions at 65 °C, preventing the use of toxic chemistries (crosslinking agents). The thermosensitive CS/Pec hydrogel was quickly created by cooling CS/Pec blend at room temperature. The used strategy created stable CS/Pec hydrogel against disintegration and water dissolution. The as-prepared hydrogel was characterized by infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The adsorbent had 1.688 mmol -COO− for each gram. These ionized sites bind Pb(II) ions, promoting their adsorption. The adsorption kinetic and equilibrium studies indicated that the Elovich and pseudo-second-order models adjusted well to the experimental data, respectively. The maximum removal capacities (qm) predicted by the Langmuir and Sips isotherms achieved 108.2 and 97.55 mg/g at 0.83 g/L adsorbent dosage (pH 4.0). The hydrogel/Pb(II) pair was characterized by scanning electron microscopy (SEM), X-ray dispersive energy (EDS), and differential scanning calorimetry (DSC). The chemisorption seems to play an essential role in the Pb(II) adsorption. Therefore, the adsorbent was not recovered, showing low potential for reusability.

Background Breast cancer (BC) is the most common female cancer worldwide. Menopausal symptoms are a well-known side effect in women with BC and have a significant negative impact on quality of life (QoL) and sexuality. Nowadays, hormonal replacement therapy and local estrogens are the most common prescriptions to treat vulvovaginal (VVA) symptoms. However, in women with a history of BC, proper therapy for such conditions remains an often inadequately addressed clinical problem. A treatment with microablative fractional CO2 laser (MLT) can produce a remodeling of the vaginal connective tissue without causing damage to the surrounding tissue. The aim of this pilot study is to assess the efficacy and safety of MLT for treating VVA symptoms in women with a history of BC at 20-week follow-up since the first laser treatment. Patients and Methods Women with BC and VVA symptoms were enrolled in the study and treated with 5 laser applications (one every 4 weeks). The rate of satisfied patients at 20 weeks of follow-up was evaluated with a 5-point Likert scale. Changes of the Vaginal Health Index (VHI) after treatment was compared with baseline. Effects of the laser treatment on VVA symptoms was measured using a 10-cm visual analog scale (VAS). Changes in overall QoL were assessed with a generic QoL questionnaire: the Short Form 12 (SF-12) that we analyzed considering its physical (PCS12) and mental (MCS12) domains. Sexual function was evaluated by the Female Sexual Function Index (FSFI). Results In this prospective cohort study, we enrolled 40 women with a history of BC and who currently were or (Group 2) who had been (Group 1) on treatment with endocrine therapy for their condition. Six (15.0%) women were very satisfied, 25 (62.5%) were satisfied, 6 (15.0%) were uncertain, and 3 (7.5%) were dissatisfied with the MLT. VVA symptoms and VHI improved significantly at 20 weeks from baseline (P .05). In terms of QoL measured by the SF-12, the PCS12 and the MCS12 significantly improved at the 20-week follow-up. A significant improvement in total FSFI and in all domains was reported in both study groups (P .05). Conclusion MLT was safe and effective in treating VVA symptoms in women with a history of BC, irrespective of being previously or currently on endocrine therapies.

This paper presents an unprecedented investigation of the thermal energy storage potential of underground tunnels used as heat exchangers, often called energy tunnels, with a focus on seasonal, medium-temperature thermal energy storage applications. The study is divided into two parts. First, this work defines fundamental physical variables for assessing the thermal energy storage potential of tunnels and other underground structures used as heat exchangers. These are the heat carrier fluid temperature at the inlet and outlet of the pipes, the stored and extracted thermal power, the stored and extracted thermal energy, the storage losses, the storage efficiency, the storage and specific storage capacity, and the thermally induced stresses and displacements. Second, this work numerically investigates the trend of the expanded physical variables for a thoroughly characterized case study under different operating conditions. These are operations characterized by different charging-discharging profiles, charging-discharging temperature differences, ground saturations, and ground uniformities. This study indicates storage efficiencies of energy tunnels of up to about 70%. Therefore, energy tunnels have marked potential to store massive amounts of thermal energy in the shallow subsurface for subsequent reuse. From this perspective, the employment of underground structures and infrastructures as thermal energy storage means appears promising to establish resilient and sustainable energy systems that can serve urban areas from the building to the district scales.

In this work free-standing gels formed from gellan gum (GG) by solvent evaporation are coated with polysaccharide-based polyelectrolyte multilayers, using the layer-by-layer approach. We show that PEMs composed of iota-carrageenan (CAR) and three different natural polycationic polymers have composition-dependent antimicrobial properties, and support mammalian cell growth. Cationic polymers (chitosan (CHT), N,N,N-trimethyl chitosan (TMC), and an amino-functionalized tannin derivative (TN)) are individually assembled with the anionic iota-carrageenan (CAR) at pH 5.0. PEMs (15-layers) are alternately deposited on the GG film. The GG film and coated GG films with PEMs are characterized by infrared spectroscopy with attenuated total reflectance (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and water contact angle (WCA) measurements. The TN/CAR coating provides a hydrophobic (WCA = 127°) and rough surface (Rq = 243 ± 48 nm), and the TMC/CAR coating provides a hydrophilic surface (WCA = 78°) with the lowest roughness (Rq = 97 ± 12 nm). Polymer coatings promote stability and durability of the GG film, and introduce antimicrobial properties against Gram-negative (Salmonella enteritidis) and Gram-positive (Staphylococcus aureus) bacteria. The films are also cytocompatible. Therefore, they have properties that can be further developed as wound dressings and food packaging.

Conventional strategies (Turkevich's, and modified Turkevich's methods) often synthesize gold nanoparticles (AuNPs). These pathways produce AuNPs using toxic chemistries to reduce Au(III) and stabilize Au(0) atoms upon the AuNP surfaces. To overcome the disadvantages of conventional approaches, chitosan and chitosan-based materials associate with Au(III) to produce composites. Chitosan and derivatives reduce Au(III) and stabilize AuNPs, promoting biocompatibility to the composites, following approaches in-situ. In this review, we report methods to develop chitosan/AuNPs-based composites. The main criticism is about the mechanism of composite formation. Also, we highlight applications of chitosan/AuNPs-based devices in the biomedical arena. We report the synthesis of biosensors, drug delivery devices, scaffolds, antimicrobial coatings, and others. The major criticism is concerning the material design and the lack of data regarding the composite biocompatibility. We support a critical viewpoint.

To obtain pectin-based films is challenging due to the aqueous instability of polyelectrolyte mixtures. We overcome this issue by blending chitosan to pectin of high O-methoxylation degree (56%), followed by solvent evaporation. A durable film containing 74 wt% pectin content was produced and used as an adsorbent material toward Cu(II) ions. Kinetic and adsorption equilibrium studies showed that the pseudo-second-order and Sips isotherm models adjusted well to the experimental data, respectively. Langmuir isotherm indicated a maximum adsorption capacity (qm) for Cu(II) removal of 29.20 mg g−1. Differential scanning calorimetry, contact angle measurements, and X-ray photoelectron spectroscopy confirm the adsorption. The chemisorption plays an essential role in the process; thereby, the film reusability is low. After adsorption, the cytocompatible film/Cu(II) pair prevents the proliferation of Escherichia coli.

This work reviews the bio-chemical mechanisms leading to adverse effects produced when mineral fibres are inhaled and transported in the lungs from the perspective of a mineralogist. The behaviour of three known carcinogenic mineral fibres (crocidolite, chrysotile, and fibrous-asbestiform erionite) during their journey through the upper respiratory tract, the deep respiratory tract and the pleural cavity is discussed. These three fibres have been selected as they are the most socially and economically relevant mineral fibres representative of the classes of chain silicates (amphiboles), layer silicates (serpentine), and framework silicates (zeolites), respectively. Comparison of the behaviour of these fibres is made according to their specific crystal-chemical assemblages and properties. Known biological and subsequent pathologic effects which lead and contribute to carcinogenesis are critically reviewed under the mineralogical perspective and in relation to recent progress in this multidisciplinary field of research. Special attention is given to the understanding of the cause-effect relationships for lung cancer and malignant mesothelioma. Comparison with interstitial pulmonary fibrosis, or "asbestosis", will also be made here. This overview highlights open issues, data gaps, and conflicts in the literature for these topics, especially as regards relative potencies of the three mineral fibres under consideration for lung cancer and mesothelioma. Finally, an attempt is made to identify future research lines suitable for a general comprehensive model of the carcinogenicity of mineral fibres.