Cunmin Sun
Chinese Academy of Sciences
FermentationGeneMutantMolecular biologyComposite materialEnzymeChemistryMaterials scienceSuperalloyLayer (electronics)NialAbrasiveCoatingRecombinant DNAElectroplatingMetalEscherichia coliBiochemistryStrain (chemistry)Biology
10Publications
5H-index
83Citations
Publications 11
Newest
#1Y.D. Liu (USTC: University of Science and Technology of China)H-Index: 4
#2Jiantao Liu (USTC: University of Science and Technology of China)H-Index: 10
Last. Cunmin Sun (CAS: Chinese Academy of Sciences)H-Index: 5
view all 8 authors...
In order to improve the oxidation and wear resistance of blades tip of titanium alloys as well as the sealing performance of the gas turbine engine, a Ni/cBN abrasive coating was prepared on titanium alloys through composite electroplating. Oxidation, mechanical and tribological properties of the abrasive coating were investigated. Furthermore, the effect of the oxidation on the mechanical and tribological properties was also evaluated. Oxidation results revealed that the abrasive coating underw...
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#1K.J. Tan (CAS: Chinese Academy of Sciences)H-Index: 2
#2J.J. Liang (CAS: Chinese Academy of Sciences)H-Index: 7
Last. X.F. Sun (CAS: Chinese Academy of Sciences)H-Index: 28
view all 8 authors...
The oxidation behaviour of a fourth-generation single-crystal superalloy without coating and with two types of MCrAlY coatings at 1140 °C was studied. The results showed that both coatings greatly improved the oxidation resistance of the superalloy, and the addition of Hf further improved the oxidation resistance by pinning the oxide layer into the coating. Before and after oxidation, obvious Cr and Al interdiffusion was detected. Inward Cr diffusion induces the precipitation of a topologically ...
Source
#1Y.D. Liu (USTC: University of Science and Technology of China)H-Index: 4
#2Jiaxing Sun (Qilu University of Technology)H-Index: 2
Last. Cunmin Sun (CAS: Chinese Academy of Sciences)H-Index: 5
view all 7 authors...
Abstract Cyclic oxidation behavior of NiCrAlYSi + NiAl/cBN abrasive coating at 900 °C and the mechanical properties of the coating-substrate system were investigated. Results indicated that elemental interdiffusion occurred between the coating and substrate, which caused the formation of interdiffusion zone (IDZ) and secondary reaction zone (SRZ) during aluminization, while their compositions and structures changed with oxidation. AlN interfacial layer formed at cBN/metallic matrix interface dur...
Source
#1Y.D. Liu (USTC: University of Science and Technology of China)H-Index: 4
#2J. Sun (Qilu University of Technology)H-Index: 3
Last. Cunmin Sun (CAS: Chinese Academy of Sciences)H-Index: 5
view all 7 authors...
Abstract In order to improve the oxidation and hot corrosion resistance of blades tip as well as the sealing performance of gas turbine engine, a NiCrAlYSi + NiAl/cBN abrasive coating was prepared by combining arc ion plating, electroplating and above-pack aluminisation. Oxidation and hot corrosion behavior of the abrasive coating were investigated. Results indicated that the abrasive coating showed lower oxidation and degradation rate at 900 ℃. NaCl aggravated the corrosion extent via cyclic ch...
Source
#1Xiaowei Wang (CAS: Chinese Academy of Sciences)H-Index: 3
#2Qinggang Li (CAS: Chinese Academy of Sciences)H-Index: 12
Last. Yanhe Ma (CAS: Chinese Academy of Sciences)H-Index: 61
view all 14 authors...
Background Late-stage fermentation broth contains high concentrations of target chemicals. Additionally, it contains various cellular metabolites which have leaked from lysed cells, which would exert multifactorial stress to industrial hyperproducers and perturb both cellular metabolism and product formation. Although adaptive laboratory evolution (ALE) has been wildly used to improve stress tolerance of microbial cell factories, single-factor stress condition (i.e. target product or sodium chlo...
Source
#1Wang Xingchu (CAS: Chinese Academy of Sciences)H-Index: 1
#2Jiao Liu (CAS: Chinese Academy of Sciences)H-Index: 12
Last. Yanhe Ma (CAS: Chinese Academy of Sciences)H-Index: 61
view all 9 authors...
trans-4-Hydroxy- l -proline (trans-4Hyp) is widely used as a valuable building block for the organic synthesis of many pharmaceuticals such as carbapenem antibiotics. The major limitation for industrial bioproduction of trans-4Hyp is the low titer and productivity by using the existing trans-proline 4-hydroxylases (trans-P4Hs). Herein, three new trans-P4Hs from Alteromonas mediterranea (AlP4H), Micromonospora sp. CNB394 (MiP4H) and Sorangium cellulosum (ScP4H) were discovered through genome mini...
Source
#1Fengyu Kou (CAS: Chinese Academy of Sciences)H-Index: 2
#2Jing Zhao (CAS: Chinese Academy of Sciences)H-Index: 5
Last. Jibin Sun (CAS: Chinese Academy of Sciences)H-Index: 34
view all 10 authors...
Objective To enhance the thermal and alkaline pH stability of the lysine decarboxylase from Escherichia coli (CadA) by engineering the decameric interface and explore its potential for industrial applications.
Source
#9Xiaowei Wang (Nanjing Tech University)H-Index: 3
Background l-Threonine is an important amino acid for animal feed. Though the industrial fermentation technology of threonine achieved a very high level, there is still significant room to further improve the industrial strains. The biosensor-based high-throughput screening (HTS) technology has demonstrated its powerful applications. Unfortunately, for most of valuable fine chemicals such as threonine, a HTS system has not been established mainly due to the absence of a suitable biosensor. In th...
Source
#1Wei PuH-Index: 1
#2Jiuzhou Chen (CAS: Chinese Academy of Sciences)H-Index: 7
Last. Yanhe MaH-Index: 61
view all 7 authors...
: 5-aminolevulinic acid (ALA), a precursor for biosynthesis of pyrrole compounds in living organisms, has been widely used in agriculture and medical photodynamics therapy and is regarded as a promising value-added bio-based chemical. In the previous investigations on ALA production with recombinant Escherichia coli expressing heterogenous C4 pathway gene, LB media supplemented with glucose and ALA precursors succinate and glycine is widely used, leading to high production cost. Succinate partic...
#1Cunmin Sun (CAS: Chinese Academy of Sciences)H-Index: 5
#2Chen XzH-Index: 1
Last. Peng XxH-Index: 1
view all 4 authors...
The ubiquitin fusion of apidaecin was expressed in Lactococcus lactis ,using a novel nisin inducible expression system.After induction,a specific band could be detected in the extracts of the host strain by Tricine SDS PAGE and Western blotting. Production of the fusion was up to 7 2% of the total soluble protein of the host strain.While the fusion was cut by ubiquitin specific protease\|UBP1,the product had distinct antibacterial activity.
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