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嵌入碳酸酐酶的ZIF-8电纺PVA纤维作为一种优异的生物催化剂候选物

Carbonic Anhydrase-Embedded ZIF-8 Electrospun PVA Fibers as an Excellent Biocatalyst Candidate.

作者信息

Asadi Vahideh, Marandi Afsaneh, Kardanpour Reihaneh, Tangestaninejad Shahram, Moghadam Majid, Mirkhani Valiollah, Mohammadpoor-Baltork Iraj, Mirzaei Razieh

机构信息

Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran.

出版信息

ACS Omega. 2023 May 9;8(20):17809-17818. doi: 10.1021/acsomega.3c00691. eCollection 2023 May 23.

DOI:10.1021/acsomega.3c00691
PMID:37251154
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10210226/
Abstract

There is a growing concern that the increasing concentration of CO in the atmosphere contributes to a potential negative impact on global climate change. To deal with this problem, developing a set of innovative, practical technologies is essential. In the present study, maximizing the CO utilization and precipitation as CaCO was evaluated. In this manner, bovine carbonic anhydrase (BCA) was embedded into the microporous zeolite imidazolate framework, ZIF-8, physical absorption and encapsulation. Running as crystal seeds, these nanocomposites (enzyme-embedded MOFs) were grown on the cross-linked electrospun polyvinyl alcohol (CPVA). The prepared composites displayed much higher stability against denaturants, high temperatures, and acidic media than free BCA, and BCA immobilized into or on ZIF-8. During 37 days of storage period study, BCA@ZIF-8/CPVA and BCA/ZIF-8/CPVA maintained more than 99 and 75% of their initial activity, respectively. The composition of BCA@ZIF-8 and BCA/ZIF-8 with CPVA improved stability for consecutive usage in recovery reactions, recycling easiness, and greater control over the catalytic process. The amounts of calcium carbonate obtained by one mg each of fresh BCA@ZIF-8/CPVA and BCA/ZIF-8/CPVA were 55.45 and 49.15 mg, respectively. The precipitated calcium carbonate by BCA@ZIF-8/CPVA reached 64.8% of the initial run, while this amount was 43.6% for BCA/ZIF-8/CPVA after eight cycles. These results indicated that the BCA@ZIF-8/CPVA and BCA/ZIF-8/CPVA fibers could be efficiently applied to CO sequestration.

摘要

人们越来越担心大气中一氧化碳浓度的增加会对全球气候变化产生潜在的负面影响。为了解决这个问题，开发一套创新、实用的技术至关重要。在本研究中，评估了将一氧化碳利用率最大化并使其沉淀为碳酸钙的情况。通过这种方式，将牛碳酸酐酶（BCA）通过物理吸附和包封的方式嵌入到微孔沸石咪唑酯骨架ZIF-8中。作为晶种，这些纳米复合材料（酶嵌入的金属有机框架）在交联的静电纺丝聚乙烯醇（CPVA）上生长。制备的复合材料对变性剂、高温和酸性介质的稳定性比游离BCA以及固定在ZIF-8内部或表面的BCA高得多。在37天的储存期研究中，BCA@ZIF-8/CPVA和BCA/ZIF-8/CPVA分别保持了其初始活性的99%以上和75%以上。BCA@ZIF-8和BCA/ZIF-8与CPVA的组合提高了在回收反应中连续使用的稳定性、回收的便利性以及对催化过程的更好控制。每毫克新鲜的BCA@ZIF-8/CPVA和BCA/ZIF-8/CPVA分别获得的碳酸钙量为55.45毫克和49.15毫克。BCA@ZIF-8/CPVA沉淀的碳酸钙在八个循环后达到初始运行量的64.8%，而BCA/ZIF-8/CPVA的这一量为43.6%。这些结果表明，BCA@ZIF-8/CPVA和BCA/ZIF-8/CPVA纤维可以有效地应用于一氧化碳封存。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/552946655d0d/ao3c00691_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/51ad4445bc33/ao3c00691_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/f7c8111e0033/ao3c00691_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/f53d5c5cbc77/ao3c00691_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/5b3a5ea19c0f/ao3c00691_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/bbb19c22c484/ao3c00691_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/a9cb6dadf868/ao3c00691_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/6532333ad28a/ao3c00691_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/79dafef30876/ao3c00691_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/552946655d0d/ao3c00691_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/51ad4445bc33/ao3c00691_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/f7c8111e0033/ao3c00691_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/f53d5c5cbc77/ao3c00691_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/5b3a5ea19c0f/ao3c00691_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/bbb19c22c484/ao3c00691_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/a9cb6dadf868/ao3c00691_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/6532333ad28a/ao3c00691_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/79dafef30876/ao3c00691_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1849/10210226/552946655d0d/ao3c00691_0009.jpg

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本文引用的文献

[1]
Enhanced mechanical, thermal, and UV-shielding properties of poly(vinyl alcohol)/metal-organic framework nanocomposites.

RSC Adv. 2018-11-16

[2]
Novel bovine carbonic anhydrase encapsulated in a metal-organic framework: a new platform for biomimetic sequestration of CO.

RSC Adv. 2019-9-10

[3]
Smart chemistry of enzyme immobilization using various support matrices - A review.

Int J Biol Macromol. 2021-11-1

[4]
Preparation and characterization of nanofibrous metal-organic frameworks as efficient catalysts for the synthesis of cyclic carbonates in solvent-free conditions.

Dalton Trans. 2021-8-4

[5]
Enzymatic characteristics of immobilized carbonic anhydrase and its applications in CO conversion.

Colloids Surf B Biointerfaces. 2021-8

[6]
Confined interfacial micelle aggregating assembly of ordered macro-mesoporous tungsten oxides for HS sensing.

Nanoscale. 2020-10-22

[7]
Hierarchical Branched Mesoporous TiO-SnO Nanocomposites with Well-Defined n-n Heterojunctions for Highly Efficient Ethanol Sensing.

Adv Sci (Weinh). 2019-10-24

[8]
Modulating the Biofunctionality of Metal-Organic-Framework-Encapsulated Enzymes through Controllable Embedding Patterns.

Angew Chem Int Ed Engl. 2020-2-10

[9]
Acid-resistant enzyme@MOF nanocomposites with mesoporous silica shells for enzymatic applications in acidic environments.

J Biotechnol. 2019-9-21

[10]
Enzymes@ZIF-8 Nanocomposites with Protection Nanocoating: Stability and Acid-Resistant Evaluation.

Polymers (Basel). 2018-12-25

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