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Background/Purpose: This over 7‐year case study is the first to compare the results of laparoscopic Glissonian pedicle approach hemihepatectomy (LGAH) and laparoscopic hilar dissection approach hemihepatectomy (LHAH) in a randomized controlled trial (RCT). Methods: Patients who had undergone laparoscopic hemihepatectomy, either LGAH or LHAH, between March 2012 and December 2019 at our center were prospectively enrolled and assigned to the LGAH or LHAH group. Both groups were stratified and compared, and the preoperative and follow‐up outcomes were analyzed. The primary endpoint was total operative time. Results: The groups were equally matched for age, sex, HBsAg, Child‐Pugh class, benign disease, malignancy, liver cirrhosis, tumor diameter and type of resection. Ninety‐six patients had undergone LGAH and 94 had undergone LHAH. No preoperative death occurred in the two groups. LGAH did not enhance the postoperative overall complication rates (P =.465) or intraoperative blood loss (P =.535) compared with LHAH. However, the overall operative time (P =.014) and hilar dissection time (P =.000) were significantly shorter in the LGAH group than in the LHAH group. No significant differences were found between the groups regarding the 1‐year (P =.384), 3‐year (P =.332), and 5‐year overall survival rates (P =.662) or 1‐year (P =.856), 3‐year (P =.348), and 5‐year disease‐free survival rates (P =.573). Conclusions: LGAH and LHAH are both effective procedures for treating the hilar structures in selected patients. LGAH has advantages over LHAH in reducing total operation time under the condition where both procedures can be used. LGAH for selected patients is worthy of promotion owing to its simplicity and convenience. Registration number: NCT01567631 (http://www.clinicaltrials.gov). [ABSTRACT FROM AUTHOR]

Three dinuclear dysprosium(III) complexes, [Dy2L2(O2CPh)2]⋅2 MeOH (1), [Dy2L2{(2‐NO2)O2CPh}2] (2), and [Dy2L2{(2‐OH)O2CPh}2]⋅MeOH⋅MeCN (3) (H2L=N1,N3‐bis(4‐chlorosalicyladehyde)diethylenetriamine), have been synthesized and structurally characterized. Complexes 1–3 possess similar Ln2 cores and differ in substituents at the benzyl rings of benzoates. Direct current (dc) magnetic susceptibility studies in the 2–300 K range showed weak antiferromagnetic interactions between two dysprosium(III) ions in 1–3. The alternating current (ac) magnetic susceptibility measurements indicated that they all exhibited SMM behavior. The strategic attachment of the −NO2 group (in 2) and the −OH functionality (in 3) on the skeleton of the benzoic acid led to subtle variations of the bond lengths and bond angles in the coordination environments of the central dysprosium(III) ions, consequently resulting in the enhancement of the energy barriers for 2 and 3. Complete‐active‐space self‐consistent field (CASSCF) calculations were employed to rationalize the experimental outcomes. Theoretical calculations confirm the existence of antiferromagnetic interactions in 1–3, and the calculated dc magnetic susceptibility data agree well with those obtained experimentally. The computational results reveal more axial g tensors, as well as higher first excited Kramers doublets in 2 and 3; thus resulting in higher energy barriers in compounds 2 and 3. [ABSTRACT FROM AUTHOR]

The employment of a new rigid N‐tridentate ligand, bis(1‐chloroimidazo[1,5‐a]pyridin‐3‐yl)pyridine (bcpp), in the construction of cobalt(II) single‐ion magnets is reported. Two cobalt(II) complexes, [Co(bcpp)Cl2] (1) and [Co(bcpp)Br2] (2), have been prepared and characterized. Single‐crystal XRD analyses reveal that complexes 1 and 2 are isostructural. They are pentacoordinated mononuclear cobalt(II) compounds with expected trigonal bipyramidal geometry. Both analysis of the magnetic data and ab initio calculations reveal easy‐plane magnetic anisotropy (D>0) for 1 and 2. Detailed alternating current magnetic susceptibility measurements reveal the occurrence of slow magnetic relaxation behavior for the cobalt(II) centers of 1 and 2; thus indicating that both complexes are field‐induced single‐ion magnets. [ABSTRACT FROM AUTHOR]

To explore the influences of the subtle structural variations in the ligand backbones on the single‐molecule magnetic properties of dinuclear dysprosium(III) complexes, three ligands—H2L1 (H2L1=N1,N3‐bis(salicylaldehyde)diethylenetriamine), H2L2 (H2L2=N1,N3‐bis(3‐methoxysalicylidene)diethylenetriamine), and H2L3 (H2L3=N1,N3‐bis(5‐chlorosalicyladehyde)diethylenetriamine)—were synthesized and employed to prepare the expected dinuclear dysprosium(III) complexes. The three ligands differ in terms of the substituents at the benzene rings of the salicylaldehyde moieties. The reactions of Dy(NO3)3⋅6 H2O, pivalic acid, and the ligands H2L1, H2L2, and H2L3 generated complexes with the formulae [Dy2(L1)2(piv)2] (1), [Dy2(L2)2(piv)2] (2), and [Dy2(L3)2(piv)2]⋅ 2 MeCN (3), respectively. The purposeful attachment of the functional groups with varied sizes at the benzene rings of the salicylaldehyde backbones resulted in slight differences in the Dy‐O‐Dy bond angles and the Dy⋅⋅⋅Dy bond lengths in 1–3; consequently, the three complexes exhibited distinct magnetic properties. They all showed slow magnetization relaxation with energy barriers of 40.32 (1), 31.67 (2), and 33.53 K (3). Complete active space self‐consistent field (CASSCF) calculations were performed on complexes 1–3 to rationalize the slight discrepancy observed in the magnetic behavior. The calculated results satisfactorily explained the experimental outcomes. Magnetic personalities: Three dinuclear complexes, [Dy2(L1)2(piv)2] (1), [Dy2(L2)2(piv)2] (2), and [Dy2(L3)2(piv)2]⋅2 MeCN (3), were synthesized and characterized (see figure). The subtle structural differences result in variations in their magnetic properties. [ABSTRACT FROM AUTHOR]

Poly(dimethylsiloxane) (PDMS) is commonly used as the negative friction layer of triboelectric nanogenerator (TENG) which can harvest ubiquitous mechanical energy. However, it is essential to improve the energy output of PDMS‐based TENGs with high visible transmittance for transparent flexible TENG. In this study, a simple, cost‐effective and efficient approach is demonstrated to modify PDMS without degrading high transparency. The novel flexible TENG based on PDMS‐PTFE composite film exhibits high output voltage and large transfer charge quantity of 95 V and 85 nC respectively, which are enhanced more than threefold in the output compared with pristine PDMS‐based TENG. And the TENG device generates average power output of 3.0 W m−2 across the matched optimal load resistance. The enhancement is attributed to PTFE particles dispersed in PDMS matrix, which can increase surface potential and reduce work function. Moreover, the TENG device also remains good transparency and flexibility, which satisfies the demands of transparent and flexible electronic devices. The proposed PDMS/PTFE based TENG shows good application prospects for various power sensors and even wearable energy suppliers. High‐performance transparent and flexible triboelectric nanogenerators (TENG) based on PDMS‐PTFE composite films are fabricated by a facile approach in this paper. The TENG exhibits admirable properties which have been attributed to PTFE particles dispersed in PDMS matrix. This work shows good application prospects for various power sensors and even wearable energy suppliers. [ABSTRACT FROM AUTHOR]

The title Schiff base compound, C18H15Cl2N3O, was synthesized by the reaction of 4-amino-1,5-dimethyl-2-phenyl-1 H-pyrazol-3(2 H)-one and 2,3-dichloro­benzaldehyde in MeOH solution. There are two molecules in the asymmetric unit. As expected, the compound adopts a trans configuration about the central C=N bond. In the crystal structure, mol­ecules are linked through weak C—H⋯O hydrogen-bonding inter­actions. [ABSTRACT FROM AUTHOR]