Results 1 to 10 of about 14,125 (116)
Comparative Study of Different Materials Immobilized Naringinase(不同材料固定化柚苷酶的比较) [PDF]
Shipin kexue jishu xuebao, 2015 Chitosan, sodium alginate, activated carbon,and graphene oxide were selected to immobilizenaringinase. By comparing the activities of immobilized naringinase and the enzyme-carrying rates of the enzyme carriers, it was found that graphene oxide was the ...
DUAN Zhitao(段志涛) +2 more
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Zhongguo youzhi, 2023 摘要：金属有机骨架（MOF）具有多样性、高比表面积、化学稳定性和易于后修饰等优势，是固定化酶的优良载体。为了促进生物柴油的发展，针对MOF固定化脂肪酶的方法及其在生物柴油生产中的应用进展进行了综述。MOF固定化脂肪酶的方法有物理吸附法、共价结合法、原位包埋法等，采用MOF固定脂肪酶生产生物柴油，在一定程度上降低了生产成本和提高了产率。开发新型的脂肪酶固定化方法及寻求合适的固定化载体是生物柴油发展的关键。 Metal organic framework (MOF) is an excellent ...
林佳乐，夏率博，冯笑笑，CHEONG Lingzhi LIN Jiale, XIA Shuaibo, FENG Xiaoxiao, CHEONG Lingzhi
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Zhongguo youzhi, 2022 以海藻酸钠-羧甲基纤维素钠（CMC）为复合载体，戊二醛为交联剂，探究了包埋-交联法制备固定化米黑根毛霉脂肪酶的最佳工艺条件，并对固定化米黑根毛霉脂肪酶的酶学性质进行分析。结果表明，制备固定化米黑根毛霉脂肪酶的最佳工艺条件为海藻酸钠质量分数2.5%、CMC质量分数1.5%、脂肪酶液浓度800 U/mL、CaCl2质量分数5%、戊二醛质量分数0.03%、交联固定化时间30 min，在此条件下固定化米黑根毛霉脂肪酶的酶活力为245.58 U/g，与游离脂肪酶相比，固定化脂肪酶热稳定性和pH稳定性均有所提高 ...
彭思敏，肖菁，吴卫国，廖卢艳 PENG Simin, XIAO Jing, WU Weiguo, LIAO Luyan
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Gongye shui chuli, 2023 漆酶（LAC）能够有效催化氧化废水中多种难降解的有机污染物，但其游离态不够稳定，且难以回收再利用。采用动态晶化法合成了一种由MWW结构纳米片交错共生而成的分级孔空心分子筛微球（HZM），并将其用于LAC的固定化。结果表明，通过戊二醛（GA）交联法可将LAC固定于氨基功能化的HZM上，固载量可达198.6 mg/g，酶活性回收率约为52.4%；与游离态LAC相比，固定化LAC对酸度和温度敏感性降低，储藏和操作稳定性有明显提升；固定化酶循环使用8次后，仍可保留初始活性的50%以上 ...
郝志豪, 杨红梅, 张华新
doaj
Neutral interactions among non‐native plants are common
New Phytologist, EarlyView.Global distribution of studies and overall effect of co‐invasion for all metrics of non‐native plant performance combined. Summary Globalization has accelerated the establishment of non‐native plant species, increasing the prevalence of multispecies co‐invasions; yet interactions among co‐invaders remain poorly understood.
Feng He +7 more
wiley +1 more source
Study on Immobilization of Bromelain by Modified Pineapple Peel Residue Cellulose(改性菠萝皮渣纤维素固定化菠萝蛋白酶研究) [PDF]
Shipin kexue jishu xuebao, 2020 In order to explore the feasibility of modified cellulose as immobilization enzyme carrier, the extracted pineapple peel residue cellulose was uniformly modified with L-serine in ionic liquid and used to immobilize bromelain.
CHEN Hui(陈辉) +1 more
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There Is Always a Bigger Fish. Determinants of Power Perceptions in Swiss Biodiversity Policy
Policy Studies Journal, EarlyView.ABSTRACT The Advocacy Coalition Framework (ACF) views power as crucial in policy processes, but the nature of coalition power, its determinants, and how to empirically measure it remain understudied. In this article, we use a mixed method approach and social network analysis to explore power relationships in the biodiversity policy subsystem in ...
Alix d'Agostino +2 more
wiley +1 more source
Digital Futures Between Participatory Digital Democracy and Participatory Digital Fascism
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT This paper explores one of the defining political questions of the twenty‐first century: will digital technologies strengthen democracy or accelerate new forms of authoritarianism and fascism? Against the backdrop of platform capitalism, AI‐driven communication, surveillance infrastructures, disinformation and democratic crisis, the study asks
Christian Fuchs +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The commercialization of lithium–sulfur batteries (Li–S batteries) has been hindered by the shuttle effect of lithium polysulfides (LiPSs) and sluggish redox kinetics. In this study, we constructed a three‐dimensional hollow conductive network host material for sulfur with synergistic enhancement effects.
Jie Yang +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Conventional lithium‐ion battery cathodes predominantly rely on reversible lithium intercalation in bulk, which inevitably induces phase transitions, transition metal migration, and voltage decay. Electrolytic anion adsorption pseudocapacitance provides a chance for bypassing these issues via a surface‐dominated reaction, especially in ...
Hongjin Ren +10 more
wiley +1 more source