Solar-CO2 -to-Syngas Conversion Enabled by Precise Charge Transport Modulation.

The rational design of the directional charge transfer channel represents an important strategy to finely tune the charge migration and separation in photocatalytic CO2 -to-fuel conversion. Despite the progress made in crafting high-performance photocatalysts, developing elegant photosystems with precisely modulated interfacial charge transfer feature remains a grand challenge. Here, a facile one-pot method is developed to achieve in situ self-assembly of Pd nanocrystals (NYs) on the transition metal chalcogenide (TMC) substrate with the aid of a non-conjugated insulating polymer, i.e., branched polyethylenimine (bPEI), for photoreduction of CO2 to syngas (CO/H2 ). The generic reducing capability of the abundant amine groups grafted on the molecular backbone of bPEI fosters the homogeneous growth of Pd NYs on the TMC framework. Intriguingly, the self-assembled TMCs@bPEI@Pd heterostructure with bi-directional spatial charge transport pathways exhibit significantly boosted photoactivity toward CO2 -to-syngas conversion under visible light irradiation, wherein bPEI serves as an efficient hole transfer mediator, and simultaneously Pd NYs act as an electron-withdrawing modulator for accelerating spatially vectorial charge separation. Furthermore, in-depth understanding of the in situ formed intermediates during the CO2 photoreduction process are exquisitely probed. This work provides a quintessential paradigm for in situ construction of multi-component heterojunction photosystem for solar-to-fuel energy conversion.

Application of Micro-Percutaneous Nephrolithotomy (Micro-PCNL) combined with FURL in 1-2 cm symptomatic, refractory lower calyceal stones.

Objective: To investigate the safety and efficacy of Micro-Percutaneous Nephrolithotomy (Micro-PCNL) combined with flexible ureteroscopic lithotomy (FURL) in the treatment of 1-2 cm symptomatic, refractory lower calyceal stones. Methods: A retrospective analysis was performed concerning the clinical data of 28 patients with 1-2 cm symptomatic, refractory lower calyceal stones. When there was a difficulty in performing FURL in Affiliated Hospital of Hebei University from January 2019 to February 2022, ultrasound-guided F4.8 visual puncture was performed on the lower calyceal stone,with a holmium laser was then used to treat the remaining stones, followed by drainage using a flexible ureteroscopic sheath and postoperative indwelling of the ureteral stent without a nephrostomy tube. The surgery time, intraoperative bleeding and stone-free rate(SFR) were recorded, and the VAS score was used to evaluate the patients' pain status. Results: The surgery was completed successfully in an average of 43.46 ± 10.04 minutes, and the puncture time was 3.46 ± 0.69 minutes. The SFR was 85.71%(24/28) and 92.86%(26/28) at one day and 30 days after surgery, respectively. Two patients with residual stones greater than 0.6 cm in size underwent extracorporeal shock wave lithotripsy four weeks after surgery. Patients were followed up for three months after surgery, and the SFR was revised to 96.43%(27/28). In addition, the VAS scores of all patients decreased significantly from before to after surgery, and the difference was statistically significant(p< 0.05). Conclusion: Micro-Percutaneous Nephrolithotomy (Micro-PCNL) combined with FURL is safe and effective in the treatment of 1-2 cm symptomatic, refractory lower calyceal stones.

Analysis of the safety and efficacy of tacrolimus combined with glucocorticoid in the treatment of lupus nephritis.

Objective: To evaluate the safety and efficacy of tacrolimus combined with glucocorticoids in the treatment of lupus nephritis. Methods: A total of 80 patients with lupus nephritis were admitted to the Affiliated Hospital of Hebei University and the First Hospital of Baoding from February 2017 to January 2019 randomly divided into two groups: the experimental group and the control group, with 40 cases in each group. Patients in the experimental group were treated with tacrolimus combined with glucocorticoids, while patients in the control group were treated with cyclophosphamide combined with glucocorticoids for one year. Clinical efficacy and adverse drug reactions were evaluated for all patients after treatment. The changes of CRP, IL-6, 24h urinary protein, serum albumin, serum creatinine, urea nitrogen and other indicators after treatment, as well as the differences in the erythrocyte sedimentation rate (ESR), complement C3, C4, anti-dsDNA antibody positive rate and SLEDAI score and other indicators were also evaluated. Results: The total efficacy of the experimental group was 92.5%, which was significantly better than the 75% of the control group (p=0.03); The incidence of adverse reactions was 20% in the experimental group and 42.5% in the control group, with a statistically significant difference (p=0.03). After treatment, the levels of CRP, IL-6 and other inflammatory factors in the experimental group were lower than those in the control group, with a statistical significance (p<0.05); The indicators of the experimental group such as 24h urine protein quantification, serum albumin, blood creatinine, and urea nitrogen were improved compared with the control group, with statistically highly significant differences (p<0.001). In addition, ESR, anti-DSDNA antibody positive rate and SLEDAI score were decreased compared with the control group, while complement C3 and C4 levels were significantly increased (p<0.05). Conclusion: Tacrolimus combined with glucocorticoids is a safe and effective treatment regimen for patients with lupus nephritis, boasting a variety of benefits, such as significant efficacy and fewer adverse reactions. With such a regimen, the level of inflammatory factors can be significantly reduced, renal function indicators can be ameliorated, the ESR, complement C3, C4, anti-dsDNA antibody positive rate and SLEDAI score of the patients can be significantly improved.

[Diagnosis and treatment of primary epididymal tumor: a report of 35 cases].

OBJECTIVE: To explore the diagnosis and treatment of primary epididymal tumor. METHODS: We retrospectively analyzed the clinical data of 35 cases of pathologically confirmed primary epididymal tumor. Of the total number of patients, 10 underwent tumor excision, 23 received epididymectomy, 1 was treated by simple orchidoepididymectomy, and by radical orchidoepididymectomy with second-stage retroperitoneal lymph node dissection. RESULTS: Postoperative pathology confirmed 33 cases of benign tumor (including 21 adenomatoid tumor, 7 leiomyoma, 4 fibroma, and 1 papillary cystadenoma), and 2 cases of malignancy (1 malignant fibrous histiocytoma and 1 adenocarcinoma). The follow-up lasted 10 months to 6 years, which revealed no recurrence, metastasis and death. CONCLUSION: Primary epididymal tumor is difficult to be definitely diagnosed preoperatively. Surgical exploration is the first choice for those highly suspected of the disease. Tumor excision or epididymectomy can be considered for benign cases, while radical orchidoepididymectomy with retroperitoneal lymph node dissection is recommended in case of malignancy.

[TRUS-guided transperineal biopsy with 9 + X method for the diagnosis of prostate carcinoma: retrospective analysis of 420 cases].

OBJECTIVE: To explore the clinical value and safety of TRUS-guided transperineal biopsy with the 9 + X method in the diagnosis of prostate carcinoma. METHODS: A total of 420 men underwent TRUS-guided transperineal biopsy with the 9 + X method for suspected prostate carcinoma. Their clinical data were retrospectively analyzed. RESULTS: Prostate carcinoma was detected in 160 (38.1%) of the 420 cases, accounting for 7.4%, 17.8% and 65.4% in those with PSA < 4.0 microg/L, 4 -10 microg/L and > 10 microg/L respectively, 25.0% in those with abnormal findings on digital rectal examination (DRE), and 22.2% in those with abnormal echoes on TRUS or abdominal ultrasound examination. Complications after prostatic biopsy included gross hematuria in 79 cases (18.8%), acute urinary retention in 13 (3.1%) and fever in 9 (2.1%), but no other serious complications were observed. CONCLUSION: TRUS-guided transperineal biopsy with the 9 + X method, with high accuracy and fewer complications, is an ideal approach to the diagnosis of prostate carcinoma.

Incorporating 4-tert-Butylpyridine in an Antisolvent: A Facile Approach to Obtain Highly Efficient and Stable Perovskite Solar Cells.

The synthesis and growth of CH3NH3PbI3 films with controlled nucleation is a key issue for the high efficiency and stability of solar cells. Here, 4-tert-butylpyridine (tBP) was introduced into a CH3NH3PbI3 antisolvent to obtain high quality perovskite layers. In situ optical microscopy and X-ray diffraction patterns were used to prove that tBP significantly suppressed perovskite nucleation by forming an intermediate phase. In addition, a gradient perovskite structure was obtained by this method, which greatly improved the efficiency and stability of perovskites. An effective power conversion efficiency (PCE) of 17.41% was achieved via the tBP treatment, and the high-efficiency device could maintain over 89% of the initial PCE after 30 days at room temperature.

[Effects of Radix Astragali and Fructus Corni on urinary protein pattern in nephropathy mice by microfluidic chip].

OBJECTIVE: To study the urinary protein patterns of nephropathy mice induced by dextran and the effects of aquesous extract of Fructus Corni (AEFC) and Radix Astragali (AERA). METHOD: Nephropathy model was established by administrated with dextran to mice. Some of the dextran treated mice were given AERA (20 g x kg(-1) x d(-1)) as AERA group, other mice were given AEFC (10 g x kg(-1) x d(-1)) as AEFC group. Some of the dextran treated mice were given water as model group, some normal mice as normal control group. After a 12 weeks' treatment, 24 hour urine of four groups was collected, respectively. Each urinary sample was divided into two parts, one was non-concentrated urine sample, another was used as concentrated urine sample. Two kinds of urinary sample of four groups were analyzed with microfluidic chips on Agilent 2100 Bioanalyzer instrument. RESULT: Each group's urinary protein patterns were obtained, more than 20 proteins were were detected. Compared with normal group, about five kinds of protein were found in urinary sample of model group, among which M > 43 x 10(3) proteins were increased. Compared with model group, significant treated-related protein's kind and quantitative changes in AERA treated group and AEFC group were found. Urinary protein kinds were reduced, especially certain the proteins (M > 50 x 10(3)) were significantly decreased approach to normal patterns. Non-concentrated urine samples' protein pattern mainly included were proteins (M=29, 32, 43, 52, 68, 76 x 10(3) and concentrated urine samples mainly included the proteins (M=22, 24, 32, 46 x 10(3)). CONCLUSION: AERA and AEFC could reduce the urinary protein and made protein pattern different, which showed that radix astragali and fructus corni could play an important role in protecting renal function of nephropathy mice and finding the target protein markers related to AERA and AEFC effects on nephropathy mice.

Solvothermal Synthesis of Hierarchical TiO2 Microstructures with High Crystallinity and Superior Light Scattering for High-Performance Dye-Sensitized Solar Cells.

In this article, hierarchical TiO2 microstructures (HM-TiO2) were synthesized by a simple solvothermal method adopting tetra-n-butyl titanate as the titanium source in a mixed solvent composed of N,N-dimethylformamide and acetic acid. Due to the high crystallinity and superior light-scattering ability, the resultant HM-TiO2 are advantageous as photoanodes for dye-sensitized solar cells. When assembled to the entire photovoltaic device with C101 dye as a sensitizer, the pure HM-TiO2-based solar cells showed an ultrahigh photovoltage up to 0.853 V. Finally, by employing the as-obtained HM-TiO2 as the scattering layer and optimizing the architecture of dye-sensitized solar cells, both higher photovoltage and incident photon-to-electron conversion efficiency value were harvested with respect to TiO2 nanoparticles-based dye-sensitized solar cells, resulting in a high power conversion efficiency of 9.79%. This work provides a promising strategy to develop photoanode materials with outstanding photoelectric conversion performance.

Clinical application of all seeing needle system in diagnosis and treatment of patients with hematospermia / 中国内镜杂志

Objective To observe the clinical application of all seeing needle system system in diagnosis and treatment of patients with hematospermia. Methods From May 2015 to September 2016, 22 patients with hemospermia were treated with seminal vesiculoscopy and seminal vesicle lithotripsy by using a all seeing needle system instead of traditional seminal vesicle. Results All the patients were successfully found the seminal vesicle gland and successfully entered the seminal vesicle gland, 16 cases had chronic inflammation of the seminal vesicle, dilute iodine rinse, 6 cases of seminal vesicle, holmium laser lithotripsy, stone basket to remove. The average operation time was (15.7 ± 6.2) min. The catheterization was performed the next day after operation. The average hospital stay was 2 d. After follow-up for 3 to 6 months, 20 patients had disappeared (90.9％). No complication was found Disease and long-term complications. Conclusion The all seeing needle system can replace the traditional seminal vesicle for the operation of seminal vesicle. The puncture system is short, directional and maneuverable. It has advantages of short operation time, simple operation, easy to master and no complications.

Combined standard percutaneous nephrolithotomy and 4.8Fr micro- percutaneous nephrolithotomy and for multiple renal calculi (46 cases) / 中国内镜杂志

Objective To explore the application of visible standard channel combined with F4.8 visible puncture percutaneous nephrolithotomy in the treatment of multiple renal calculi. Methods The clinical data of 46 patients with multiple renal calculi from October 2015 to September 2016 were retrospectively analyzed. There were 28 male and 18 female, with a mean age of 42.6 years (aged from 25 to 65 years). Stone diameter 3.0~5.2 cm, average (4.3 ± 0.8) cm. Application of F4.8 visual puncture assisted angioplasty to establish the standard channel, nephrolithotomy combined with ultrasonic lithotripsy treatment in the field of visible stones, then apply the F4.8 visual micro puncture percutaneous nephrolithotomy combined with holmium laser treatment of other parts of the stone, summarizes the channel establishment total time, operation time, blood red protein decreased and stone clearance rate and complication index. Results All cases were successfully established single standard channel under the guidance of F4.8 visual puncture, 24 cases were combined with single ultramicro channel, 16 cases were combined with double ultramicro channels, and the other 6 cases were combined with the three ultra micro channels. Postoperative indwelling single renal fistula, micro channel indwelling fistula, postoperative indwelling F5 double J tube. F4.8 visual puncture established standard channel establishment time (6.8 ± 1.8) min, single F4.8 visible puncture ultra - channel establishment time of (4.5 ± 0.9) min, operation time of (92.0 ± 15.0) min. A stone clearance rate was 91.3% (42/46), a decrease in hemoglobin value of (12.2 ± 2.5) g/L, 8 cases of postoperative fever, given anti-inflammatory treatment improved, 4 cases with residual calyceal stones visible 0.5~0.8 cm, given extracorporeal shock wave lithotripsy combined with postural drainage, stone, 1 months after the treatment of stones were discharged, did not appear Shi Jie, delayed bleeding, adjacent organ injury, ureteral injury cases. Conclusion Visual standard channel combined with F4.8 ultra visible puncture percutaneous nephrolithotomy in treatment of multiple renal calculi has the advantages of reducing the large number of channels, high stone clearance rate, safety, less complications, F4.8 was used to establish the visual puncture channel is more safe and accurate.

Combined standard percutaneous nephrolithotomy and 4.8Fr micro- percutaneous nephrolithotomy and for multiple renal calculi (46 cases) / 中国内镜杂志

Objective To explore the application of visible standard channel combined with F4.8 visible puncture percutaneous nephrolithotomy in the treatment of multiple renal calculi. Methods The clinical data of 46 patients with multiple renal calculi from October 2015 to September 2016 were retrospectively analyzed. There were 28 male and 18 female, with a mean age of 42.6 years (aged from 25 to 65 years). Stone diameter 3.0~5.2 cm, average (4.3 ± 0.8) cm. Application of F4.8 visual puncture assisted angioplasty to establish the standard channel, nephrolithotomy combined with ultrasonic lithotripsy treatment in the field of visible stones, then apply the F4.8 visual micro puncture percutaneous nephrolithotomy combined with holmium laser treatment of other parts of the stone, summarizes the channel establishment total time, operation time, blood red protein decreased and stone clearance rate and complication index. Results All cases were successfully established single standard channel under the guidance of F4.8 visual puncture, 24 cases were combined with single ultramicro channel, 16 cases were combined with double ultramicro channels, and the other 6 cases were combined with the three ultra micro channels. Postoperative indwelling single renal fistula, micro channel indwelling fistula, postoperative indwelling F5 double J tube. F4.8 visual puncture established standard channel establishment time (6.8 ± 1.8) min, single F4.8 visible puncture ultra - channel establishment time of (4.5 ± 0.9) min, operation time of (92.0 ± 15.0) min. A stone clearance rate was 91.3% (42/46), a decrease in hemoglobin value of (12.2 ± 2.5) g/L, 8 cases of postoperative fever, given anti-inflammatory treatment improved, 4 cases with residual calyceal stones visible 0.5~0.8 cm, given extracorporeal shock wave lithotripsy combined with postural drainage, stone, 1 months after the treatment of stones were discharged, did not appear Shi Jie, delayed bleeding, adjacent organ injury, ureteral injury cases. Conclusion Visual standard channel combined with F4.8 ultra visible puncture percutaneous nephrolithotomy in treatment of multiple renal calculi has the advantages of reducing the large number of channels, high stone clearance rate, safety, less complications, F4.8 was used to establish the visual puncture channel is more safe and accurate.