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- 저자 : Yidan Li (검색결과 3 건)
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Jiyu Li,Li Zhu,Shuai Wu,Guixue Wang,Yidan Chen,Wei Wu 한국고분자학회 2023 Macromolecular Research Vol.31 No.3
Chemotherapy is the main strategy for inhibiting the tumor growth. However, during the therapy, the side effect of anti-cancer drug will injure normal cells. For reducing the toxic of the free drug, stimuli responsive nanoparticles (NPs) have been prepared base on the pathological acidic environment around tumor for safe and efficient anti-tumor applications. In this study, we fabricated the phenylboronic acid (PBA) modified monomethoxy polyethylene glycol (MEPG) for encapsulating doxorubicin (DOX NPs). In the drug delivery system (DDS), the pH-responsive boric ester could be stable during drug delivery, and enhance DOX rapidly release in tumor lesion under the acidic stimuli. In vitro studies further demonstrated that DOX NPs could efficiently endocytose by tumor cells, and exhibit the similar anti-tumor activity as the free DOX resulting from the pH-responsive drug release profiles under tumor acidic stimuli. In summary, DOX NPs could be a feasible candidate to improve the safe and efficient DOX delivery for improving the potential anti-tumor applications.
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Ziqiang Wen,Yaqing Feng,Xianggao Li,Xiaoxu Li,Yu Bai,Qingmeng Tang,Yidan Gao 한국물리학회 2012 Current Applied Physics Vol.12 No.1
Diarylide yellow pigments/modified SiO2 coreeshell hybrid composite particles were fabricated via a newly developed two-step procedure. The surface of diarylide yellow pigments was coated with SiO2by the hydrolysis of Na2SiO3. The obtained particles were then modified with in situ generated 3-aminopropylsilanetriol or succinic acid to form composite particles containing amino or carboxyl groups. The FT-IR spectra, TGA and TEM showed that the particles had a coreeshell structure, the SEM suggested that the surface morphology of the composite particles was smooth, and the XPS and zeta potential measurement indicated that the composite particles had a high charge load. The obtained composite particles have been applied as electrophoretic particles in the electronic paper, which demonstrated that the newly developed procedure is an effective way to produce various organic/inorganic composite particles used for electrophoretic displays.
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ShuangWang,Lei Sun,DanWei,Baoku Zhou,Junzheng Zhang,XuejiaGu,Lei Zhang,Ying Liu,Yidan Li,Wei Guo,Shuang Jiang,Yaqing Pan,Yufeng Wang 한국미생물학회 2014 The journal of microbiology Vol.52 No.7
An alkaliphilic, moderately halophilic, bacterium, designated strain X10-1T, was isolated from saline-alkaline soil in Daqing, Heilongjiang Province, China. Strain X10-1T was determined to be a Gram-positive aerobe with rod-shaped cells. The isolate was catalase-positive, oxidase-negative, non-motile, and capable of growth at salinities of 0–16% (w/v) NaCl (optimum, 3%). The pH range for growth was 7.5–11.0 (optimum, pH 10.0). The genomic DNA G+C content was 47.7 mol%. Its major isoprenoid quinone was MK-7 and its cellular fatty acid profile mainly consisted of anteiso-C15:0, anteiso-C17:0, iso-C15:0, C16:0, and iso-C16:0. The peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. The predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, and phosphatidylglycerol. Phylogenetic analysis based on 16S rRNA gene sequences showed that X10-1T is a member of the genus Bacillus, being most closely related to B. saliphilus DSM15402T (97.8% similarity) and B. agaradhaerens DSM 8721T (96.2%). DNA-DNA relatedness to the type strains of these species was less than 40%. On the basis of the phylogenetic, physiological, and biochemical data, strain X10-1T represents a novel species of the genus Bacillus, for which the name Bacillus daqingensis sp. nov. is proposed. The type strain is X10-1T (=NBRC 109404T =CGMCC 1.12295T).
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