Objective:Critical effective constituents were identified from Bufei Yishen formula(BYF),a traditional herbal compound and combined as effective-constituent compatibility(ECC)of BYF I,which may have potential bioactiv...Objective:Critical effective constituents were identified from Bufei Yishen formula(BYF),a traditional herbal compound and combined as effective-constituent compatibility(ECC)of BYF I,which may have potential bioactive equivalence to BYF.Methods:The active constituents of BYF were identified using four cellular models and categorised into Groups 1(Bufeiqi),2(Bushen),3(Huatan)and 4(Huoxue)according to Chinese medicinal theory.An orthogonal design and a combination method were used to determine the optimal ratios of effective constituents in each group and the ratios of‘‘Groups 1 to 4"according to their pharmacological activity.We also comprehensively assessed bioactive equivalence between the BYF and the ECC of BYF I in a rat model of chronic obstructive pulmonary disease(COPD).Results:We identified 12 active constituents in BYF.The numbers of constituents in Groups 1 to 4 were 3,2,5 and 2,respectively.We identified the optimal ratios of effective constituents within each group.In Group1,total ginsenosides:Astragalus polysaccharide:astragaloside IV ratio was 9:5:2.In Group 2,icariin:schisandrin B ratio was 100:12.5.In Group 3,nobiletin:hesperidin:peimine:peiminine:kaempferol ratio was4:30:6.25:0:0.In Group 4,paeoniflorin:paeonol ratio was 4:1.An orthogonal design was then used to establish the optimal ratios of Group 1,Group 2,Group 3 and Group 4 in ECC of BYF I.The ratio for total ginsenosides:Astragalus polysaccharide:astragaloside IV:icariin:schisandrin B:nobiletin:hesperidin:peimine:paeoniflorin:paeonol was determined to be 22.5:12.5:5:100:12.5:4:30:6.25:25:6.25.A comprehensive evaluation confirmed that ECC of BYF I presented with bioactive equivalence to the original BYF.Conclusion:Based on the ECC of traditional Chinese medicine formula method,the effective constituents of BYF were identified and combined in a fixed ratio as ECC of BYF I that was as effective as BYF itself in treating rats with COPD.展开更多
Efficient separation of palladium(Pd(Ⅱ))from high-level liquid waste(HLLW)not only helps the safe disposal of nuclear waste,but also is a vital importan supplement to Pd(Ⅱ)resources.Herein,16 kinds of nove Amberlite...Efficient separation of palladium(Pd(Ⅱ))from high-level liquid waste(HLLW)not only helps the safe disposal of nuclear waste,but also is a vital importan supplement to Pd(Ⅱ)resources.Herein,16 kinds of nove Amberlite XAD resins-based adsorbents were prepared by vacuum impregnation method for the separation of Pd(Ⅱ)from simulated HLLW,and the MMBT/XAD7HP prepared using 4-methyl-2-mercaptobenzothiazole(MMBT)as ligand and Amberlite XAD7HP resin(XAD7HP)as the carrier was selected as the optimal research object.Characterization analysis experiments proved the successful preparation of MMBT/XAD7HP,which exhibited ultrahigh adsorption selectivity for Pd(Ⅱ)(distribution coefficient(K_d)≥12584.5 ml·g^(-1),separation factor(SF_(Pd/M))≥2818.4)and superior adsorption capacity(Q≥130.1 mg·g^(-1)).The adsorption kinetics and adsorption isotherms for Pd(Ⅱ)matched with pseudo-secondorder(PSO)kinetics model and Langmuir model,indicating that the adsorption mode for Pd(Ⅱ)by MMBT/XAD7 HP was monolayer chemical adsorption.The dynamic column experiments showed that MMBT/XAD7 HP achieved efficiently separation of Pd(Ⅱ)from simulated HLLW,and the recovery rate was nearly 100% The adsorption mechanism was analyzed by Fourier transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS)and density functional theory(DFT),and the ultrahigh selectivity of MMBT/XAD7 HP is attributed to the preferred affinity of the soft-N,S donor atoms in MMBT for Pd(Ⅱ).MMBT has the shortest frontline molecular orbital energy band gap(HOMO-LUMO)among the four ligands,which makes it easier to become an electron donor to attract Pd^(2+)to participate in coordination.NO_(3)^(-)participates in the adsorption to keep charge balance.In summary,MMBT/XAD7 HP has broad application prospects for the treatment of Pd(Ⅱ)in HLLW.展开更多
基金supported by the National Natural Science Fundation of China(No.81973822,81130062,81603473)National Public Welfare Industry Research Project-Traditional Chinese Medicine Industry(No.201507001-01)National Key Research and Development Program of China(No.2018YFC1704806)。
文摘Objective:Critical effective constituents were identified from Bufei Yishen formula(BYF),a traditional herbal compound and combined as effective-constituent compatibility(ECC)of BYF I,which may have potential bioactive equivalence to BYF.Methods:The active constituents of BYF were identified using four cellular models and categorised into Groups 1(Bufeiqi),2(Bushen),3(Huatan)and 4(Huoxue)according to Chinese medicinal theory.An orthogonal design and a combination method were used to determine the optimal ratios of effective constituents in each group and the ratios of‘‘Groups 1 to 4"according to their pharmacological activity.We also comprehensively assessed bioactive equivalence between the BYF and the ECC of BYF I in a rat model of chronic obstructive pulmonary disease(COPD).Results:We identified 12 active constituents in BYF.The numbers of constituents in Groups 1 to 4 were 3,2,5 and 2,respectively.We identified the optimal ratios of effective constituents within each group.In Group1,total ginsenosides:Astragalus polysaccharide:astragaloside IV ratio was 9:5:2.In Group 2,icariin:schisandrin B ratio was 100:12.5.In Group 3,nobiletin:hesperidin:peimine:peiminine:kaempferol ratio was4:30:6.25:0:0.In Group 4,paeoniflorin:paeonol ratio was 4:1.An orthogonal design was then used to establish the optimal ratios of Group 1,Group 2,Group 3 and Group 4 in ECC of BYF I.The ratio for total ginsenosides:Astragalus polysaccharide:astragaloside IV:icariin:schisandrin B:nobiletin:hesperidin:peimine:paeoniflorin:paeonol was determined to be 22.5:12.5:5:100:12.5:4:30:6.25:25:6.25.A comprehensive evaluation confirmed that ECC of BYF I presented with bioactive equivalence to the original BYF.Conclusion:Based on the ECC of traditional Chinese medicine formula method,the effective constituents of BYF were identified and combined in a fixed ratio as ECC of BYF I that was as effective as BYF itself in treating rats with COPD.
基金financially supported by the National Natural Science Foundation of China(Nos.22066005,U1967218 and 11975082)the Science and Technology Innovation Program of Hunan Province(No.2023RC1067)the Natural Science Foundation of Guangxi Province(No.2021GXNAFAA220096)。
文摘Efficient separation of palladium(Pd(Ⅱ))from high-level liquid waste(HLLW)not only helps the safe disposal of nuclear waste,but also is a vital importan supplement to Pd(Ⅱ)resources.Herein,16 kinds of nove Amberlite XAD resins-based adsorbents were prepared by vacuum impregnation method for the separation of Pd(Ⅱ)from simulated HLLW,and the MMBT/XAD7HP prepared using 4-methyl-2-mercaptobenzothiazole(MMBT)as ligand and Amberlite XAD7HP resin(XAD7HP)as the carrier was selected as the optimal research object.Characterization analysis experiments proved the successful preparation of MMBT/XAD7HP,which exhibited ultrahigh adsorption selectivity for Pd(Ⅱ)(distribution coefficient(K_d)≥12584.5 ml·g^(-1),separation factor(SF_(Pd/M))≥2818.4)and superior adsorption capacity(Q≥130.1 mg·g^(-1)).The adsorption kinetics and adsorption isotherms for Pd(Ⅱ)matched with pseudo-secondorder(PSO)kinetics model and Langmuir model,indicating that the adsorption mode for Pd(Ⅱ)by MMBT/XAD7 HP was monolayer chemical adsorption.The dynamic column experiments showed that MMBT/XAD7 HP achieved efficiently separation of Pd(Ⅱ)from simulated HLLW,and the recovery rate was nearly 100% The adsorption mechanism was analyzed by Fourier transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS)and density functional theory(DFT),and the ultrahigh selectivity of MMBT/XAD7 HP is attributed to the preferred affinity of the soft-N,S donor atoms in MMBT for Pd(Ⅱ).MMBT has the shortest frontline molecular orbital energy band gap(HOMO-LUMO)among the four ligands,which makes it easier to become an electron donor to attract Pd^(2+)to participate in coordination.NO_(3)^(-)participates in the adsorption to keep charge balance.In summary,MMBT/XAD7 HP has broad application prospects for the treatment of Pd(Ⅱ)in HLLW.
