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Baliś A, Lorens D, Gut A, Zapotoczny S. Water-dispersable photoreactors based on core-shell mesoporous silica particles. Sci Rep 2024; 14:11257. [PMID: 38755207 PMCID: PMC11099024 DOI: 10.1038/s41598-024-61750-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 05/09/2024] [Indexed: 05/18/2024] Open
Abstract
Robust solid-core silica particles with submicrometer size and anthracene-containing mesoporous shell were obtained and studied as model water-dispersable photoreactors. An anthracene derivative containing a triethoxysilyl group was synthesized and co-condensed with tetraethoxysilane in various ratios to form a photoactive mesoporous shell with a thickness up to approximately 80 nm on previously prepared solid silica particles. Mesopores of as-synthesized particles, without a commonly applied removal of the micellar templates, offered a confined space for solubilization of hydrophobic molecules. Efficient excitation energy transfer from anthracene chromophores to both hydrophobic (perylene) and hydrophilic (fluoresceine) encapsulated acceptors was observed in an aqueous dispersion of the particles. Photosensitized oxidation of encapsulated perylene was shown to proceed efficiently in such systems serving as water-dispersable photoreactors. Importantly, the designed core-shell systems were found to be stable for a long time (at least 24 months) and robust enough, thanks to the presence of solid cores, to be handled by centrifugation in aqueous dispersions. All these features make them promising candidates for reusable systems for the photosensitized degradation of water pollutants, especially hydrophobic pollutants.
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Affiliation(s)
- Andrzej Baliś
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239, Krakow, Poland
| | - Dominika Lorens
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
| | - Arkadiusz Gut
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
| | - Szczepan Zapotoczny
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland.
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Dai J, Peng Z, Shen S, Huang B, Ren L, Liu J, Chen CH, Chen G. Evaluation of exogenous therapeutic protein activity under confinement and crowding effects. NANOSCALE 2023; 15:13450-13458. [PMID: 37548227 DOI: 10.1039/d3nr02968a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Dysfunction of intracellular proteins is frequently associated with various diseases, such as cancer. The exogenous proteins in cells are usually assembled with specific configurations due to physiological confinement/crowding to exhibit novel features in the protein structure, folding or conformational stability, distinguished with their behaviors in buffer solutions. Here, we synthesized exogenous proteins under confined/crowded conditions, to explore protein activity within cells. The findings suggested that the confinement and crowding effects on protein activity are heterogeneous; they showed an inhibitory effect on HRP by decreasing Km from ∼9.5- and ∼21.7-fold and Vmax from ∼6.8- and ∼20.2-fold lower than that of dilute solutions. Interestingly, the effects on Cyt C seem to be more complicated, and crowding exerts a positive effect by increasing Km ∼ 3.6-fold and Vmax ∼ 1.5-fold higher than that of dilute solutions; however, confinement exhibits a negative effect by decreasing Km ∼2.0 and Vmax ∼8.3 times. Additionally, in contrast to traditional nanoparticle-based confinement models, we synthesized a biodegradable nanoparticle to mimic the confined space, and the biggest advantage of this novel model is that the particles can be degraded and thus it can provide more intuitive observations of the properties of the target proteins under confinement and after release. Furthermore, we also evaluated protein activity in different cellular environments, indicating that the exogenous protein activity was closely related to the crowdedness of cellular environments, and the inhibition of protein activity in MDA-MB-231 cancer cells was more obvious than in HEK293 normal cells. Finally, SAXS analysis revealed the correlation between the protein conformation and the different environments. Our work will provide a unique method for precisely assessing whether the target cellular environments are native matrix in which specific exogenous protein drugs are delivered to function or whether they display a therapeutic role, which is of great significance for screening and development of new drugs.
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Affiliation(s)
- Jie Dai
- School of Pharmaceutical Sciences, Nanjing Tech University, 30th Puzhu South Road, Nanjing 211816, China.
| | - Zhiyi Peng
- School of Pharmaceutical Sciences, Nanjing Tech University, 30th Puzhu South Road, Nanjing 211816, China.
| | - Shuwei Shen
- School of Pharmaceutical Sciences, Nanjing Tech University, 30th Puzhu South Road, Nanjing 211816, China.
| | - Binbin Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, 30th Puzhu South Road, Nanjing 211816, China.
| | - Lili Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, 30th Puzhu South Road, Nanjing 211816, China.
| | - Jia Liu
- School of Pharmaceutical Sciences, Nanjing Tech University, 30th Puzhu South Road, Nanjing 211816, China.
| | - Chia-Hung Chen
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China.
| | - Guoguang Chen
- School of Pharmaceutical Sciences, Nanjing Tech University, 30th Puzhu South Road, Nanjing 211816, China.
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Liu P, Schleusener A, Zieger G, Bochmann A, van Spronsen MA, Sivakov V. Nanostructured Silicon Matrix for Materials Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206318. [PMID: 36642786 DOI: 10.1002/smll.202206318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Tin-containing layers with different degrees of oxidation are uniformly distributed along the length of silicon nanowires formed by a top-down method by applying metalorganic chemical vapor deposition. The electronic and atomic structure of the obtained layers is investigated by applying nondestructive surface-sensitive X-ray absorption near edge spectroscopy using synchrotron radiation. The results demonstrated, for the first time, a distribution effect of the tin-containing phases in the nanostructured silicon matrix compared to the results obtained for planar structures at the same deposition temperatures. The amount and distribution of tin-containing phases can be effectively varied and controlled by adjusting the geometric parameters (pore diameter and length) of the initial matrix of nanostructured silicon. Due to the occurrence of intense interactions between precursor molecules and decomposition by-products in the nanocapillary, as a consequence of random thermal motion of molecules in the nanocapillary, which leads to additional kinetic energy and formation of reducing agents, resulting in effective reduction of tin-based compounds to a metallic tin state for molecules with the highest penetration depth in the nanostructured silicon matrix. This effect will enable clear control of the phase distributions of functional materials in 3D matrices for a wide range of applications.
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Affiliation(s)
- Poting Liu
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
- Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Alexander Schleusener
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
- Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
| | - Gabriel Zieger
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
| | - Arne Bochmann
- Ernst Abbe University of Applied Science, Carl-Zeiss-Promenade 2, 07745, Jena, Germany
| | | | - Vladimir Sivakov
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
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Chen Z, He Q, Deng X, Peng J, Du K, Sun Y. Engineering solid nanochannels with macrocyclic host-guest chemistry for stimuli responses and molecular separations. Chem Commun (Camb) 2023; 59:1907-1916. [PMID: 36688813 DOI: 10.1039/d2cc06562b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Biological channels in the cell membrane play a critical role in the regulation of signal transduction and transmembrane transport. Researchers have been committed to building biomimetic nanochannels to imitate the above significant biological processes. Unlike the fragile feature of biological channels, numerous solid nanochannels have aroused extensive interests for their controllable chemical properties on the surface and superior mechanical properties. Surface functionalization has been confirmed to be vital to determine the properties of solid nanochannels. Macrocyclic hosts (e.g., the crown ethers, cyclodextrins, calix[n]arenes, cucurbit[n]urils, pillar[n]arenes, and trianglamine) can be tailored to the interior surface of the nanochannels with the performance of stimuli response and separation. Macrocycles have good reversibility and high selectivity toward specific ions or molecules, promoting functionalies of solid nanochannels. Hence, the combination of macrocyclic hosts and solid nanochannels is conducive to taking both advantages and achieving applications in functional nanochannels (e.g., membranes separations, biosensors, and smart devices). In this review, the most recent advances in nanochannel membranes decorated by macrocyclic host-guest chemistry are briefed. A variety of macrocyclic hosts-based responsive nanochannels are organized (e.g., the physical stimuli and specific molecules or ions stimuli) and nanochannels are separated (e.g., water purifications, enantimerseparations, and organic solvent nanofiltration), respectively. Hopefully, this review can enlighten on how to effectively build functional nanochannels and facilitate their practical applications in membrane separations.
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Affiliation(s)
- Zhao Chen
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P. R. China
| | - Qiang He
- Hubei Key Laboratory of Catalysis and Materials Science, College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Xiaowen Deng
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P. R. China
| | - Jiehai Peng
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China.
| | - Kui Du
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China.
| | - Yue Sun
- State Key Laboratory of Separation Membrane and Membrane Process & Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, School of Chemistry, Tiangong University, Tianjin 300387, China.
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Xu C, Si Y, Hu B, Xu X, Hu B, jiang Y, chen H, Guo C, Li H, Chen C. Promoting Oxygen Reduction via Crafting Bridge-bonded Oxygen Ligands on Iron Single-Atom Catalyst. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00668e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single-atom Fe-N-C catalysts with Fe-N4 coordination structures hailed as the most promising candidates are prohibited by the severe aggregation and migration of metal atoms. Bonding confine strategies can effectively regulate...
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Sun Y, Liang X, Cheng SQ, He Q, Zhou ZQ, Zhao Y. Porphyrin Derivative Based Tandem Response Nanochannels Triggered by Zn2+ and NO. Chem Commun (Camb) 2022; 58:8286-8289. [DOI: 10.1039/d2cc02163c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe tandem response solid nanochannels tailored with a porphyrin derivative that show Zn2+ and NO gating behaviors with good selectivity, stability, and reversibility. EXAFS and fluorescence experiments showed that...
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