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智科眼:双语看文献,比老外还快!
纳米材料 2241
Nanozymes(
纳米酶
)
()catalytic (催化) nanomaterials (纳米材料) with(with) enzyme()-()like() characteristics(特性)()offer(具有) the() advantage (优点) of(of) low cost(低成本),(,) high () stability(稳定性),(,) tunable (可调) catalytic activity (催化活性) and() ease(容易) of(of) mass production(大规模生产).(.)For(由于) these (这些) reasons(原因),(,) they(他们) have() been() widely (广泛) applied (应用) in(in) biosensing(生物传感),(,) therapeutics(治疗) and() environmental protection(环境保护).(.)[PHP_EOL]However(然而),(,) the() low density (低密度) of(of) active (活性) sites (位点) in(in) nanozymes(纳米酶) is(is) related (有关) to(to) much(非常) lower() catalytic activity (催化活性) than(than) with(with) natural(天然) enzymes().(.)In() addition(此外),(,) their(他们的) inhomogeneous(不均匀) elemental (元素) composition (组成) and() facet (小面) structure(结构)-(-)derived(衍生) intricate (复杂) catalytic (催化) mechanisms (机制) seriously (严重) restrict (限制) the() extensive (广泛) application (应用) of(of) conventional (常规) nanozymes(纳米酶).(.)[PHP_EOL]A(一个) research (研究) team(小组) led(领导) by(by) Prof (教授) .(.) Dong(Dong) Shaojun(Shaojun) from(from) the() Changchun (长春) Institute() of() Applied Chemistry (应用化学所) (CIAC)((CIAC)) of(of) the() Chinese(中科院) Academy () of() Sciences() discovered (发现) a() new () class (类型) of(of) single()-(-)atom (原子) nanozymes(纳米酶),(,) which() integrates(结合) state(最先进)-of-()the()-()art() single()-(-)atom (原子) technology (技术) with(with) intrinsic (内在) enzyme()-()like() active (活性) sites(位点).(.)[PHP_EOL]The() researchers (研究人员) synthesized (合成) single()-(-)atom (原子) nanozymes(纳米酶) with(with) carbon () nanoframe(纳米框架)-(-)confined (限制) axial (轴向) N-(N-)coordinated(配位) FeN5(FeN5) centers (中心) (FeN5((FeN5) SA/CNF).(SA/CNF).)Theoretical calculations (理论计算) and() experimental (实验) studies (研究) indicated (表明) that(that) the() highest (最高) oxidase(氧化酶)-(-)like() activity(活性) of(of) FeN5(FeN5) SA/CNF(SA/CNF) was(was) derived(来源) from() the() enzyme()-()like() active (活性) sites (位点) and() catalytic (催化) mechanisms(机制).(.)[PHP_EOL]The() atomically (原子) dispersed (分散) metal (金属) centers (中心) maximized (最大化) the() atomic (原子) utilization efficiency (利用效率) and() density (密度) of(of) the() active (活性) sites(位点).(.)The() well()-()defined(明确) coordination (配位) structure (结构) provided (提供) a(一个) clear (明确的) experimental (实验) model (模型) for(for) mechanism (机制) investigation(研究).(.)[PHP_EOL]The() current(目前的) results (结果) suggest(表明) that(that) the() single()-(-)atom (原子) nanozymes(纳米酶) overcame (克服了) the() critical (关键) drawbacks (缺点) of(of) conventional (传统) nanozymes(纳米酶).(.)In() addition(另外),(,) mimicking(模拟) the() active (活性) sites (位点) of(of) natural(天然) enzymes () appears (似乎) to(to) be() an(一个) efficient(有效) method (方法) for(for) the() synthesis (合成) of(of) single()-(-)atom (原子) nanozymes(纳米酶) with(with) high activity (高活性) and() clear (清晰) mechanism(机制).(.)[PHP_EOL]Furthermore(此外),(,) the() catalytic (催化) property (性质) and() the() mechanism(机理) of(of) single()-(-)atom (原子) nanozymes(纳米酶) depend(主要取决于) mainly () upon() the() steric (空间) configuration(构型) of(of) active centers(活性中心),(,) rather(而不是) than() the() size(尺寸),(,) structure (结构) or() facet (小面) of(of) the(the) supports(载体).(.)Thus(因此),(,) through(通过) altering (改变) the() supported (支持的) nanomaterials(纳米材料),(,) certain (某些) types (类型) of(of) active (活性) sites (位点) can(可以) be() extended (扩展) to(to) general (一般) applications (应用) with(with) definite (确定的) enzyme()-()like() mechanisms(机制).(.)[PHP_EOL]The() study(研究),(,) published (发表) in(in) Science(Science) Advances(Advances),(,) shows (表明) that(that) defined (定义) single()-(-)atom (原子) nanozymes(纳米酶) provide (提供) a(一个) new () perspective(视角) on(on) the() catalytic mechanism (催化机理) and() rational (合理) design (设计) of(of) nanozymes(纳米酶).(.)They(它们) also () show (显示) great () potential(潜力) for(for) becoming(成为) the() next(下一) generation () of(of) nanozymes(纳米酶).(.)

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