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| 1 | Hyperbranched amphiphilic polymer with folate mediated tareting property显示文摘 | Zhang Lei Hu Chaohua Cheng Sixue | 2010 | Colloids and Surfaces B: Biointerfaces2010，79，2： | 1 |
| 2 | Observation of table-like magnetocaloric effect and large refrigerant capacity in Nd_(6)Fe_(13)Pd_(1-x)Cu_(x) compounds显示文摘The table-like magnetocaloric effect is significant for the magnetic refrigeration applications above 20 K based on the Ericsson cycle.Herein,we prepared a series of Nd_(6)Fe_(13)Pd_(1-x)Cu_(x)(x=0.05,0.1,0.15)compounds by the arc-melting method.These compounds show the single crystalline phase in the tetragonal Nd_(6)Fe_(13)Si-type structure with the space group I4/mcm.A magnetic phase transition from ferromagnetism to antiferromagnetism and a metamagnetic transition from the antiferromagnetic state to the ferromagnetic state are observed in each of the compounds.The compounds exhibit table-like magnetocaloric effects with large refrigerant capacities.A constantΔSM in a temperature span of 40 K in the Nd_(6)Fe_(13)Pd_(0.85)Cu_(0.15) compound are observed.For a field change of 0–5 T,the peak values of–ΔS_(M) for the Nd_(6)Fe_(13)Pd_(0.95)Cu_(0.05),Nd_(6)Fe_(13)Pd_(0.90)Cu_(0.10),and Nd_(6)Fe_(13)Pd_(0.85)Cu_(0.15) compounds are estimated to be 4.8,4.6 and 4.4 J/(kg·K)with corresponding refrigerant capacity values of 323,331 and 316 J/kg,respectively.The obtained table-like magnetocaloric effects with large refrigerant capacities as well as fairly small thermal and magnetic hysteresis deem these series of compounds good candidates for single-phase magnetic refrigeration based on the Ericsson cycle. | Yusong Du Chaohua Zhang Youming Lu Junqin Li Gang Cheng Jiang Wang Guanghui Rao | 2022 | Journal of Rare Earths2022，40，4： | 1 |
| 3 | A rapid shoot regeneration protocol from the cotyledons of hemp ( Cannabis sativa L.)显示文摘 | Cheng Chaohua Zang Gonggu Zhao Lining Gao Chunsheng Tang Qing Chen Jianhua Guo Xinbo Peng Dingxiang Su Jianguang | 2016 | Industrial Crops & Products2016，，： | 1 |
| 4 | Hyperbranched amphiphilic polymer with folate mediated targeting property显示文摘 | Zhang Lei Hu Chaohua Cheng Sixue | 2010 | Colloids and Surfaces B:Biointerfaces2010，79，2： | 1 |
| 5 | Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones(Cannabis sativa L.)显示文摘We investigated the effect of iron oxide nanoparticles(Fe_(3)O_(4)NPs,~17 nm in size)on the phenotype and metabolite changes in hemp(Cannabis sativa L.),an annual crop distributed worldwide.Hemp clones were grown in hydroponic cultures with Fe_(3)O_(4)NPs(50,100,200,or 500 mg/L)for four weeks.TEM and ICP-MS were used to determine Fe_(3)O_(4)NPs uptake and translocation.LC-MS-based metabolomics was employed to explore the deep insight into the effect of Fe_(3)O_(4)NPs on hemp plants.The results revealed that plant growth enhanced gradually with increasing concentrations of given NPs up to 200 mg/L,which improved the fresh weight and dry weight by 36.13%and 74.68%,respectively,compared to the control.Even at a high dose(500 mg/L),Fe_(3)O_(4)NPs promoted plant growth,including increased biomass and tissue length.NPs significantly increased the iron and chlorophyll content in plant tissues Increased catalase activity and reduced hydrogen peroxide content in hemp leaves suggested that the Fe_(3)O_(4)NPs activated the defense system.TEM showed that NPs were abundantly attached to the cell wall and dispersed throughout the root cells.Metabolomics revealed that Fe_(3)O_(4)NPs induced metabolic reprogramming in hemp leaves,including the up-regulation of carbohydrates and organic acids,and down-regulation of antioxidants,especially tetrahydrocannabinol(THC).The significantly up-regulated metabolites,including peonidin and 2-hydroxycinnamic acid,could be involved in photosynthesis in hemp plants.These results demonstrate the potential of Fe_(3)O_(4)NPs for promoting hemp growth and decreasing the THC content at low doses. | Canhui Deng Qing Tang Zemao Yang Zhigang Dai Chaohua Cheng Ying Xu Xiaojun Chen Xiaoyu Zhang Jianguang Su | 2022 | Frontiers of Environmental Science & Engineering2022，16，10： | 0 |
| 6 | Inhibiting the bipolar effect via band gap engineering to improve the thermoelectric performance in n-type Bi_(2-x)Sb_(x)Te_(3)for solid-state refrigeration显示文摘To date,the benchmark Bi_(2)Te_(3)-based alloys are still the only commercial material system used for ther-moelectric solid-state refrigeration.Nonetheless,the conspicuous performance imbalance between the p-type Bi_(2-x)Sb_(x)Te_(3)and n-type Bi_(2)Te_(3-x)Se_(x) legs has become a major obstacle for the improvement of cooling devices to achieve higher efficiency.In our previous study,novel n-type Bi_(2-x)Sb_(x)Te_(3)alloy has been pro-posed via manipulating donor-like effect as an alternative to mainstream n-type Bi_(2)Te_(3-x)Se_(x).However,the narrow bandgap of Bi_(2-x)Sb_(x)Te_(3)provoked severe bipolar effect that constrained the further improvement of zT near room temperature.Herein,we have implemented band gap engineering in n-type Bi_(1.5)Sb_(0.5)Te_(3)by employing isovalent Se substitution to inhibit the undesired intrinsic excitation and achieve the dis-tinguished room-temperature zT.First,the preferential occupancy of Se at Te^(2)site appropriately enlarges the band gap,thereby concurrently improving the Seebeck coefficient and depressing the bipolar thermal conductivity.In addition,the Se alloying mildly suppresses the compensation mechanism and essentially preserves the already optimized carrier concentration,which maintains the peak zT near room tempera-ture.Moreover,the large strain field and mass fluctuation generated by Se alloying leads to the remark-able reduction of lattice thermal conductivity.Accordingly,the zT value of Bi_(1.5)Sb_(0.5)Te_(2.8)Se_(0.2)reaches 1.0 at 300 K and peaks 1.1 at 360 K,which surpasses that of most well-known room-temperature n-type thermoelectric materials.These results pave the way for n-type Bi_(2-x)Sb_(x)Te_(3)alloys to become a new and promising top candidate for large-scale solid-state cooling applications. | Dongliang Su Jiahui Cheng Shan Li Shengnan Zhang Tu Lyu Chaohua Zhang Junqin Li Fusheng Liu Lipeng Hu | 2023 | Journal of Materials Science & Technology2023，，7： | 0 |
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