Science in China Series B: Chemistry

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Tofu-inspired microcarriers from droplet microfluidics for drug delivery
Science in China Series B: Chemistry - Tập 62 - Trang 87-94 - 2018
Han Zhang, Yuxiao Liu, Jie Wang, Changmin Shao, Yuanjin Zhao
Microcarriers have attracted increasing interests in drug delivery. In order to develop this technique, it is prone to focus on the generation of functional particles through using simple approaches and novel but accessible materials. Here, inspired by the formation mechanism of tofu that through the mixing of soymilk and brine for cross-linking soybean proteins, we present novel soybean protein m...... hiện toàn bộ
A reaction-and-assembly approach using monoamine zinc porphyrin for highly stable large-area perovskite solar cells
Science in China Series B: Chemistry - Tập 63 - Trang 777-784 - 2020
Xiaochen Li, Chunling Li, Yiying Wu, Jing Cao, Yu Tang
Inhibiting the irreversible escape of organic cations and iodide species in perovskite films is crucial for the fabrication of efficient and stable perovskite solar cells (PSCs). Here, we develop a reaction-and-assembly approach using monoamine zinc porphyrin (ZnP) to modify methylammonium (MA+) lead iodide perovskite film. The amine group in ZnP reacts with MA+ and I− ions to yield monoammonium z...... hiện toàn bộ
Trisubstituted alkenes featuring aryl groups: stereoselective synthetic strategies and applications
Science in China Series B: Chemistry - Tập 66 - Trang 1261-1287 - 2023
Meng-Yao Li, Shuyang Zhai, Xiao-Mei Nong, Ao Gu, Jiatong Li, Guo-Qiang Lin, Yingbin Liu
In recent years, the synthesis and application of alkenes have attracted increased attention. Triphenylethenes (TriPEs) have lower molecular torsion than tetraphenylethenes (TPEs), which helps to balance the degree of conjugation and the aggregation-induced emission (AIE) effect. The geometry of double bonds has a significant impact on luminescence. Therefore, it is essential to provide a comprehe...... hiện toàn bộ
Radical cascade reactions of unsaturated C-C bonds involving migration
Science in China Series B: Chemistry - Tập 62 - Trang 1476-1491 - 2019
Ge Zhang, Yang Liu, Jinbo Zhao, Yan Li, Qian Zhang
During the past few years, with the rapid development of mild methods for the generation of radical species, great progress in radical cascade reactions of unsaturated C-C bonds has been made. Many radical cascade reactions involve functional groups migration, which leads structurally much more diverse, complex and valuable compounds not easily obtained through other methods. In this review, the r...... hiện toàn bộ
A theoretical study of hydrothermal stability of P-modified ZSM-5 zeolites
Science in China Series B: Chemistry - - 2009
Jing Yang, Huai Sun
Density functional theory was employed to study the hydrothermal stability of P-modified ZSM-5 zeolites using cluster models. The calculations of hydrolysis energies indicated that the introduction of phosphorus increases the hydrothermal stability of ZSM-5 zeolites. The initial paths of dealumination were studied with explicit water molecules. It was found that the framework Al-O coordination bon...... hiện toàn bộ
Highly sensitive potentiometric immunosensor for hepatitis B surface antigen diagnosis
Science in China Series B: Chemistry - Tập 48 - Trang 49-57 - 2005
Ruo Yuan, Dianping Tang, Yaqin Chai, Lingyan Zhang, Yan Liu, Xia Zhong, Jianyuan Dai
A highly sensitive potentiometric immunosensor for the diagnoses of epidemic diseases has been developed by means of self-assembly to immobilize hepatitis B surface antibody (HBsAb) for the detection of hepatitis B surface antigen (HBsAg) as a model. At first, the Nafion containing ™SO 3 ™ groups was immobilized on a platinum electrode surface t...... hiện toàn bộ
Cấu hình lại bề mặt perovskite thông qua phản ứng bổ sung R4NBr nhằm tạo ra các tế bào năng lượng mặt trời FAPbI3 hiệu quả và ổn định Dịch bởi AI
Science in China Series B: Chemistry - Tập 65 - Trang 1185-1195 - 2022
Hongshi Li, Zhenghao Liu, Zijing Chen, Shan Tan, Wenyan Zhao, Yiming Li, Jiangjian Shi, Huijue Wu, Yanhong Luo, Dongmei Li, Qingbo Meng
Các trạng thái khuyết tật trong các lớp phim perovskite hạn chế tính ổn định giao diện và điện áp hở mạch của các tế bào năng lượng mặt trời perovskite. Trong nghiên cứu này, nhằm đạt được tính passivation giao diện ưu việt, chúng tôi điều tra việc tái cấu trúc giao diện perovskite bằng sự tương tác giữa một loạt các bromide amoni tứ trị (QAB) và octahedron chì-halide (Pb-X). Phản ứng thay thế bro...... hiện toàn bộ
Hierarchical metal-peptide assemblies with chirality-encoded spiral architecture and catalytic activity
Science in China Series B: Chemistry - Tập 66 - Trang 228-241 - 2022
Jiayu Liu, Jiaxing Zhang, Liwei Zhang, Yuefei Wang, Hao Wei, Yuhe Shen, Jiwei Min, Xi Rong, Wei Qi, Rongxin Su, Zhimin He
We report the coordination assembly of the ferrocene-diphenylalanine (Fc-FF) with divalent copper ions (Cu2+) into metal-peptide assemblies (MPAs) with hierarchical spiral architectures. The MPA particles are composed of helically organized nanofibers which can be correlated to the logarithmic spirals. The MPAs are hierarchically porous with abundant Fc and Cu2+ active sites and show much higher c...... hiện toàn bộ
Theoretical study of highly vibrational states of nonlinear triatomic molecules using Lie algebraic approach
Science in China Series B: Chemistry - Tập 43 Số 1 - Trang 99-104 - 2000
Yujun, Zheng, Shiliang, Ding
The vibrational excitations of bent triatomic molecules are studied by using Lie algebra. The RMS error of fitting 30 spectroscopic data is 1.66 cm−1 for SO2. The results show that the expansion of a molecular algebraic Hamiltonian can well describe the experimental data. And the total vibrational levels can be calculated using this Hamiltonian. At the same time, the potential energy surface can a...... hiện toàn bộ
Chuẩn bị một bộ phim polymer quang phi tuyến tự lắp ghép (NLO) mới Dịch bởi AI
Science in China Series B: Chemistry - Tập 40 - Trang 568-574 - 1997
Dongsheng Liu, Yongxin Tang, Daorong Dai, Rongben Zhang
Một bộ phim quang phi tuyến tự lắp ghép kết nối chéo thế hệ hài bậc hai (SHG/NLO) mới với hệ số SHG cao (2×10-7 e.s.u. theo phương pháp phân cực hồng ngoại) đã được chuẩn bị thông qua thiết kế phân tử và quá trình 'lập trình tại chỗ và công nghệ sol-gel'. Hàm lượng chromophore NLO (S)-(-)-1-(4)-nitropheny1-2-pyrrolidinemethanol (NPP) lên tới 50 mol% vì các phân tử NPP có khả năng phân tán ở mức ph...... hiện toàn bộ
#quang phi tuyến #thế hệ hài bậc hai #polymer tự lắp ghép #sol-gel #phân cực hồng ngoại
Tổng số: 3,565   
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