TY  - BOOK
A1  - Chen, Huan
A1  - Li, Wei-Xi
A1  - Xu, Chao-Jiang
T1  - Gevrey hypoellipticity for linear and non-linear fokker-planck equations
T3  - Preprint / Universität Potsdam, Institut für Mathematik, Arbeitsgruppe Partiell
Y1  - 2007
SN  - 1437-739X
PB  - Univ.
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Yang, Guang
A1  - Zheng, Wei
A1  - Tao, Guoqing
A1  - Wu, Libin
A1  - Zhou, Qi-Feng
A1  - Kochovski, Zdravko
A1  - Ji, Tan
A1  - Chen, Huaijun
A1  - Li, Xiaopeng
A1  - Lu, Yan
A1  - Ding, Hong-ming
A1  - Yang, Hai-Bo
A1  - Chen, Guosong
A1  - Jiang, Ming
T1  - Diversiform and Transformable Glyco-Nanostructures Constructed from Amphiphilic Supramolecular Metallocarbohydrates through Hierarchical Self-Assembly: The Balance between Metallacycles and Saccharides
JF  - ACS nano
N2  - During the past decade, self-assembly of saccharide-containing amphiphilic molecules toward bioinspired functional glycomaterials has attracted continuous attention due to their various applications in fundamental and practical areas. However, it still remains a great challenge to prepare hierarchical glycoassemblies with controllable and diversiform structures because of the complexity of saccharide structures and carbohydrate-carbohydrate interactions. Herein, through hierarchical self-assembly of modulated amphiphilic supramolecular metallocarbohydrates, we successfully prepared various well-defined glyco-nanostructures in aqueous solution, including vesicles, solid spheres, and opened vesicles depending on the molecular structures of metallocarbohydrates. More attractively, these glyco-nanostructures can further transform into other morphological structures in aqueous solutions such as worm-like micelles, tubules, and even tupanvirus-like vesicles (TVVs). It is worth mentioning that distinctive anisotropic structures including the opened vesicles (OVs) and TVVs were rarely reported in glycobased nano-objects. This intriguing diversity was mainly controlled by the subtle structural trade-off of the two major components of the amphiphiles, i.e., the saccharides and metallacycles. To further understand this precise structural control, molecular simulations provided deep physical insights on the morphology evolution and balancing of the contributions from saccharides and metallacycles. Moreover, the multivalency of glyco-nanostructures with different shapes and sizes was demonstrated by agglutination with a diversity of sugarbinding protein receptors such as the plant lectins Concanavalin A (ConA). This modular synthesis strategy provides access to systematic tuning of molecular structure and self-assembled architecture, which undoubtedly will broaden our horizons on the controllable fabrication of biomimetic glycomaterials such as biological membranes and supramolecular lectin inhibitors.
KW  - glycomaterials
KW  - diversiform structures
KW  - hierarchical self-assembly
KW  - metallocarbohydrates
KW  - anisotropic structures
Y1  - 2019
U6  - https://doi.org/10.1021/acsnano.9b07134
SN  - 1936-0851
SN  - 1936-086X
VL  - 13
IS  - 11
SP  - 13474
EP  - 13485
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - INPR
A1  - Chen, Hua
A1  - Li, Wei-Xi
A1  - Xu, Chao-Jiang
T1  - Gevrey hypoellipticity for linear and non-linear Fokker-Planck equations
N2  - This paper studies the Gevrey regularity of weak solutions of a class of linear and semilinear Fokker-Planck equations.
T3  - Preprint - (2007) 07 
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-30283
ER  - 
TY  - JOUR
A1  - Wang, Hao
A1  - Wang, Xue-jiang
A1  - Wang, Wei-shi
A1  - Yan, Xiang-bo
A1  - Xia, Peng
A1  - Chen, Jie
A1  - Zhao, Jian-fu
T1  - Modeling and optimization of struvite recovery from wastewater and reusing for heavy metals immobilization in contaminated soil
JF  - Journal of chemical technology & biotechnology
N2  - BACKROUND: Few studies have been carried out to connect nutrients recovery from wastewater and heavy metals immobilization in contaminated soil. To achieve the goal, ammonia nitrogen (AN) and phosphorus (P) were recovered from rare-earth wastewater by using the formation of struvite, which was used as the amendment with plant ash for copper, lead and chromium immobilization. RESULTS: AN removal efficiency and residual P reached 95.32 +/- 0.73% and 6.14 +/- 1.72mgL(-1) under optimal conditions: pH= 9.0, n(Mg): n(N): n(P)= 1.2: 1: 1.1, which were obtained using response surface methodology (RSM). The minimum available concentrations of Cu, Pb and Cr (CPC) separately reduced to 320.82 mg kg(-1), 190.77 mg kg(-1) and 121.46 mg kg(-1) with increasing immobilization time at the mass ratio of phosphate precipitate (PP)/plant ash (PA) of 1: 3. Humic acid (HA) and fulvic acid (FA) were beneficial to immobilize Cu, both of which showed no effect or even a negative effect on Pb and Cr immobilization.
KW  - precipitation
KW  - experimental design
KW  - immobilization
KW  - heavy metals
KW  - environmental remediation
Y1  - 2016
U6  - https://doi.org/10.1002/jctb.4931
SN  - 0268-2575
SN  - 1097-4660
VL  - 91
SP  - 3045
EP  - 3052
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Jia, Weihan
A1  - Anslan, Sten
A1  - Chen, Fahu
A1  - Cao, Xianyong
A1  - Dong, Hailiang
A1  - Dulias, Katharina
A1  - Gu, Zhengquan
A1  - Heinecke, Liv
A1  - Jiang, Hongchen
A1  - Kruse, Stefan
A1  - Kang, Wengang
A1  - Li, Kai
A1  - Liu, Sisi
A1  - Liu, Xingqi
A1  - Liu, Ying
A1  - Ni, Jian
A1  - Schwalb, Antje
A1  - Stoof-Leichsenring, Kathleen R.
A1  - Shen, Wei
A1  - Tian, Fang
A1  - Wang, Jing
A1  - Wang, Yongbo
A1  - Wang, Yucheng
A1  - Xu, Hai
A1  - Yang, Xiaoyan
A1  - Zhang, Dongju
A1  - Herzschuh, Ulrike
T1  - Sedimentary ancient DNA reveals past ecosystem and biodiversity changes on the Tibetan Plateau: overview and prospects
JF  - Quaternary science reviews : the international multidisciplinary research and review journal
N2  - Alpine ecosystems on the Tibetan Plateau are being threatened by ongoing climate warming and intensified human activities. Ecological time-series obtained from sedimentary ancient DNA (sedaDNA) are essential for understanding past ecosystem and biodiversity dynamics on the Tibetan Plateau and their responses to climate change at a high taxonomic resolution. Hitherto only few but promising studies have been published on this topic. The potential and limitations of using sedaDNA on the Tibetan Plateau are not fully understood. Here, we (i) provide updated knowledge of and a brief introduction to the suitable archives, region-specific taphonomy, state-of-the-art methodologies, and research questions of sedaDNA on the Tibetan Plateau; (ii) review published and ongoing sedaDNA studies from the Tibetan Plateau; and (iii) give some recommendations for future sedaDNA study designs. Based on the current knowledge of taphonomy, we infer that deep glacial lakes with freshwater and high clay sediment input, such as those from the southern and southeastern Tibetan Plateau, may have a high potential for sedaDNA studies. Metabarcoding (for microorganisms and plants), metagenomics (for ecosystems), and hybridization capture (for prehistoric humans) are three primary sedaDNA approaches which have been successfully applied on the Tibetan Plateau, but their power is still limited by several technical issues, such as PCR bias and incompleteness of taxonomic reference databases. Setting up high-quality and open-access regional taxonomic reference databases for the Tibetan Plateau should be given priority in the future. To conclude, the archival, taphonomic, and methodological conditions of the Tibetan Plateau are favorable for performing sedaDNA studies. More research should be encouraged to address questions about long-term ecological dynamics at ecosystem scale and to bring the paleoecology of the Tibetan Plateau into a new era.
KW  - Sedimentary ancient DNA (sedaDNA)
KW  - Tibetan Plateau
KW  - Environmental DNA
KW  - Taphonomy
KW  - Ecosystem
KW  - Biodiversity
KW  - Paleoecology
KW  - Paleogeography
Y1  - 2022
U6  - https://doi.org/10.1016/j.quascirev.2022.107703
SN  - 0277-3791
SN  - 1873-457X
VL  - 293
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Jiang, Wei
A1  - Tao, Chen
A1  - Stolterfoht, Martin
A1  - Jin, Hui
A1  - Stephen, Meera
A1  - Lin, Qianqian
A1  - Nagiri, Ravi C. R.
A1  - Burn, Paul L.
A1  - Gentle, Ian R.
T1  - Hole-transporting materials for low donor content organic solar cells
BT  - charge transport and device performance
JF  - Organic electronics : physics, materials and applications
N2  - Low donor content solar cells are an intriguing class of photovoltaic device about which there is still considerable discussion with respect to their mode of operation. We have synthesized a series of triphenylamine-based materials for use in low donor content devices with the electron accepting [6,6]-phenyl-C71-butyric acid methyl ester (PC(7)0BM). The triphenylamine-based materials absorb light in the near UV enabling the PC(7)0BM to be be the main light absorbing organic semiconducting material in the solar cell. It was found that the devices did not operate as classical Schottky junctions but rather photocurrent was generated by hole transfer from the photo-excited PC(7)0BM to the triphenylamine-based donors. We found that replacing the methoxy surface groups with methyl groups on the donor material led to a decrease in hole mobility for the neat films, which was due to the methyl substituted materials having the propensity to aggregate. The thermodynamic drive to aggregate was advantageous for the performance of the low donor content (6 wt%) films. It was found that the 6 wt% donor devices generally gave higher performance than devices containing 50 wt% of the donor.
KW  - photoexcited hole transfer
KW  - photocurrent generation
KW  - synthesis
KW  - hole
KW  - mobility
KW  - low donor content
KW  - Schottky junction
Y1  - 2020
U6  - https://doi.org/10.1016/j.orgel.2019.105480
SN  - 1566-1199
SN  - 1878-5530
VL  - 76
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Jiang, Wei
A1  - Stolterfoht, Martin
A1  - Jin, Hui
A1  - Burn, Paul L.
T1  - Hole-transporting poly(dendrimer)s as electron donors for low donor organic solar cells with efficient charge transport
JF  - Macromolecules : a publication of the American Chemical Society
N2  - Recent work on bulk-heterojunction organic solar cells has shown that photoexcitation of the electron acceptor followed by photoinduced hole transfer can play a significant role in photocurrent generation. To establish a clear understanding of the role of the donor in the photoinduced hole transfer process, we have synthesized a series of triphenylamine-based hole-transporting poly(dendrimer)s with mechanically flexible nonconjugated backbones via ring-opening metathesis polymerization and used them in low donor content solar cells. The poly(dendrimer)s were found to retain the hole transporting properties of the parent dendrimer, with hole mobilities of similar to 10(-3) cm(2)/(V s) for solution processed neat films. However, when blended with [6,6]-phenyl-C-70-butyric acid methyl ester (PC70BM), the best performing poly(dendrimer) was found to form films that had balanced and relatively high hole/electron mobilities of similar to 5 x 10(-4) cm(2) /(V s). In contrast, at the same concentration the parent dendrimer:PC70BM blend was found to have a hole mobility of 4 orders of magnitude less than the electron mobility. The balanced hole and electron mobilities for the 6 wt % poly(dendrimer):PC70BM blend led to an absence of second-order bimolecular recombination losses at the maximum power point and resulted in a fill factor of 0.65 and a PCE 2.1% for the devices, which was almost three times higher than the cells composed of the parent dendrimer:PC70BM blends.
Y1  - 2020
U6  - https://doi.org/10.1021/acs.macromol.0c00520
SN  - 0024-9297
SN  - 1520-5835
VL  - 53
IS  - 8
SP  - 2902
EP  - 2911
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Shayduk, Roman
A1  - Hallmann, Jörg
A1  - Rodriguez-Fernandez, Angel
A1  - Scholz, Markus
A1  - Lu, Wei
A1  - Bösenberg, Ulrike
A1  - Möller, Johannes
A1  - Zozulya, Alexey
A1  - Jiang, Man
A1  - Wegner, Ulrike
A1  - Secareanu, Radu-Costin
A1  - Palmer, Guido
A1  - Emons, Moritz
A1  - Lederer, Max
A1  - Volkov, Sergey
A1  - Lindfors-Vrejoiu, Ionela
A1  - Schick, Daniel
A1  - Herzog, Marc
A1  - Bargheer, Matias
A1  - Madsen, Anders
T1  - Femtosecond x-ray diffraction study of multi-THz coherent phonons in SrTiO3
JF  - Applied physics letters
N2  - We report generation of ultra-broadband longitudinal acoustic coherent phonon wavepackets in SrTiO3 (STO) with frequency components extending throughout the first Brillouin zone. The wavepackets are efficiently generated in STO using femtosecond infrared laser excitation of an atomically flat 1.6 nm-thick epitaxial SrRuO3 film. We use femtosecond x-ray diffraction at the European X-Ray Free Electron Laser Facility to study the dispersion and damping of phonon wavepackets. The experimentally determined damping constants for multi-THz frequency phonons compare favorably to the extrapolation of a simple ultrasound damping model over several orders of magnitude.
Y1  - 2022
U6  - https://doi.org/10.1063/5.0083256
SN  - 0003-6951
SN  - 1077-3118
VL  - 120
IS  - 20
PB  - AIP Publishing
CY  - Melville
ER  -