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Coordination of uranium chemistry by multiligands has attracted attention as a way to obtain unique molecular structures and their possible use in environmental and nuclear waste disposal. In this work, mass spectrum with positive ions ［UO2(N3)n］+(n=0-4) as the dominant peaks generated by laser evaporation of uranium target with N2O as the carrier gas is reported. The associated quantitative calculations are carried out to explore structures and bonding interactions. The calculations show that N3 is bound to UO+2 as a radical and reveal that the bonding interaction in the whole system is found only between the first N3 ligand and uranium atom. Further localized molecular orbital analyses indicate the presence of multi-centered orbital delocalization in the system.

An ultrasensitive photoelectrochemical (PEC) aptasensor was originally designed by using ZnIn2S4/ReS2 as a photoactive material and AgInS2 as a signal amplifier. The signal amplifier AgInS2 was incubated on the terminal of H-DNA (immobilized on the ZnIn2S4/ReS2/FTO surface), leading to an enhanced photocurrent response. Then, due to the introduction of DNA2, the formation of a double-stranded structure caused AgInS2 to keep away from the electrode surface, and the photocurrent was reduced. In the presence of kanamycin, DNA2 was released from the system due to the competition relationship, and a restored photocurrent response was obtained. The combination of ZnIn2S4/ReS2 and AgInS2 accelerated the electron transfer and enhanced the separation efficiency of photogenerated electron–hole pairs, resulting in an improved performance of the PEC aptasensor, which was capable of accurate and sensitive detection of kanamycin in actual samples. [ABSTRACT FROM AUTHOR]

ABSTRACT: Objective: To present a case of Langerhans cell histiocytosis (LCH) involving the pituitary and thyroid that was misdiagnosed as idiopathic diabetes insipidus (DI) and Hashimoto thyroiditis.Methods: The history, clinical findings, laboratory and imaging results, management, and follow-up of the case are presented, and the endocrine involvement is discussed.Results: A 50-year-old female with a 13-year history of DI and a 5-year history of progressive goiter with hypothyroidism had been initially diagnosed with idiopathic DI and Hashimoto thyroiditis. She also had a 10-year history of diabetes mellitus (DM). A partial thyroidectomy was conducted when the goiter caused dyspnea, and the postoperative pathological results suggested LCH. After a thorough examination, the diagnosis of LCH was confirmed, and the patient was treated with chemotherapy and radiotherapy. After the treatment, she went into persistent remission.Conclusion: LCH cases mainly presenting as endocrine disorders are very rare, and the diagnosis tends to be delayed or missed due to atypical clinical manifestations. Lesions or functional disorders of the pituitary and thyroid need to be differentially diagnosed against LCH of these organs. Appropriate therapy and long-term follow-up are necessary for the management of endocrine LCH.Abbreviations: CT computed tomography DI diabetes insipidus DM diabetes mellitus LCH Langerhans cell histiocytosis MRI magnetic resonance imaging TSH thyroid-stimulating hormone

Organic–inorganic hybrid perovskites (OIHPs) have gained tremendous interest for their rich functional properties. However, the coexistence of more than one of ferroelectricity, ferromagnetism and ferroelasticity has been rarely found in OIHPs. Herein, we report a two‐dimensional Cr2+‐based OIHP, [3,3‐difluorocyclobutylammonium]2CrCl4 ([DFCBA]2CrCl4), which shows both ferroelectricity and ferromagnetism. It undergoes a 4/mmmFm type ferroelectric phase transition at a temperature as high as 387 K and shows multiaxial ferroelectricity with a saturate polarization of 2.1 μC cm−2. It acts as a soft ferromagnet with a Curie temperature of 32.6 K. This work throws light on the exploration of OIHPs with the coexistence of ferroelectricity and ferromagnetism for applications in future multifunctional smart devices. [ABSTRACT FROM AUTHOR]

To explore whether there is a specific clinical effect of acupuncture in the treatment of chronic prostatitis. A total of 52 patients with chronic prostatitis were randomly divided into an acupuncture group (24 cases) and a placebo acupuncture group (28 cases). During the treatment, 1 case was dropped out in the placebo acupuncture group and 51 patients accomplished the clinical trial finally in two groups. In the acupuncture group, Shènshū (肾俞BL23), Zhōngliáo (中髎BL33), Huìyáng (会阳BL35) and Sānyīnjiāo (三阴交SP6) were selected. In the placebo acupuncture group, the non-meridian points located lateral to BL23, BL33, BL35 and SP6 were selected, respectively. The duration of treatment was 8 weeks in each group. In the first 4 weeks of treatment, the treatment was given once every two days, three times weekly. In the last 4 weeks of treatment, the treatment was given once every three days, twice a week. Totally, 20 acupuncture treatments were required in the whole trial. Before treatment, in week 4 and 8 of treatment and in follow-up, National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) score and the comprehensive effect were evaluated in the two groups successively. In week 4 and 8 of treatment, NIH-CPSI score in the acupuncture group was lower than that before treatment, respectively (both P < 0.05). In week 8 of treatment, NIH-CPSI score in the placebo acupuncture group was lower than that before treatment (P < 0.05). NIH-CPSI score in the acupuncture group was lower than the placebo acupuncture group in week 8 of treatment (P < 0.05). In follow-up, NIH-CPSI score of the two groups all decreased as compared with the score before treatment (both P < 0.05), and the score in the acupuncture group was lower than the placebo acupuncture group (P < 0.05). In the comparison of comprehensive effect, the total effective rate was 91.7% in the acupuncture group and was 74.1% in the placebo acupuncture group. The therapeutic effect in the acupuncture group was better than that of the placebo acupuncture group (P < 0.05). Acupuncture relieves pelvic pain and urination symptoms and has a certain of long-term effect in patients with chronic prostatitis. [ABSTRACT FROM AUTHOR]

We discovered that [(histamine)(18-crown-6)2][BF4]2 is a high-temperature host–guest inclusion complex that presents decent piezoelectric properties (d33 = 5 pC/N), undergoes a phase transition at 406 K, and also possesses potential ferroelectricity. This work provides a new idea for constructing host–guest inclusion piezoelectrics. [ABSTRACT FROM AUTHOR]