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Santra S, Molla MR. Small molecule-based core and shell cross-linked nanoassemblies: from self-assembly and programmed disassembly to biological applications. Chem Commun (Camb) 2024. [PMID: 39301871 DOI: 10.1039/d4cc03515a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
Supramolecular assemblies of stimuli-responsive amphiphilic molecules have been of utmost interest in targeted drug delivery applications, owing to their capability of sequestering drug molecules in one set of conditions and releasing them in another. To minimize undesired disassembly and stabilize noncovalently encapsulated drug molecules, the strategy of core or shell cross-linking has become a fascinating approach to constructing cross-linked polymeric or small molecule-based nanoassemblies. In this article, we discuss the design and synthetic strategies for cross-linked nanoassemblies from small molecule-based amphiphiles, with robust stability and enhanced drug encapsulation capability. We highlight their potential biomedical applications, particularly in drug or gene delivery, and cell imaging. This feature article offers a comprehensive overview of the recent developments in the application of small molecule-based covalently cross-linked nanocarriers for materials and biomedical applications, which may inspire the use of these materials as a potential drug delivery system for future chemotherapeutic applications.
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Affiliation(s)
- Subrata Santra
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
| | - Mijanur Rahaman Molla
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
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2
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Fuente IFDL, Sawant SS, Kho KW, Sarangi NK, Canete RC, Pal S, Liang LH, Keyes TE, Rouge JL. Determining the Role of Surfactant on the Cytosolic Delivery of DNA Cross-Linked Micelles. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43400-43415. [PMID: 39132807 DOI: 10.1021/acsami.4c09894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Nucleic Acid Nanocapsules (NANs) are nucleic acid nanostructures that radially display oligonucleotides on the surface of cross-linked surfactant micelles. Their chemical makeup affords the stimuli-responsive release of therapeutically active DNA-surfactant conjugates into the cells. While NANs have so far demonstrated the effective cytosolic delivery of their nucleic acid cargo, as seen indirectly by their gene regulation capabilities, there remain gaps in the molecular understanding of how this process happens. Herein, we examine the enzymatic degradation of NANs and confirm the identity of the DNA-surfactant conjugates formed by using mass spectrometry (MS). With surface enhanced (resonance) Raman spectroscopy (SE(R)RS), we also provide evidence that the energy-independent translocation of such DNA-surfactant conjugates is contingent upon their release from the NAN structure, which, when intact, otherwise buries the hydrophobic surfactant tail in its interior. Such information suggests a critical role of the surfactant in the lipid disruption capability of the DNA surfactant conjugates generated from degradation of the NANs. Using NANs made with different tail lengths (C12 and C10), we show that this mechanism likely holds true despite significant differences in the physical properties (i.e., critical micelle concentration (CMC), surfactants per micelle, Nagg) of the resultant particles (C12 and C10 NANs). While the total cellular uptake efficiencies of C12 and C10 NANs are similar, there were differences observed in their cellular distribution and localized trafficking, even after ensuring that the total concentration of DNA was the same for both particles. Ultimately, C10 NANs appeared less diffuse within cells and colocalized less with lysosomes over time, achieving more significant knockdown of the target gene investigated, suggesting more effective endosomal escape. These differences indicate that the surfactant assembly and disassembly properties, including the number of surfactants per particle and the CMC can have important implications for the cellular delivery efficacy of DNA micelles and surfactant conjugates.
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Affiliation(s)
- Ina F de la Fuente
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Shraddha S Sawant
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Kiang W Kho
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Glasvenin, Dublin D09 W6Y4, Ireland
| | - Nirod K Sarangi
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Glasvenin, Dublin D09 W6Y4, Ireland
| | - Rachelle C Canete
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Suman Pal
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Lisa H Liang
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Tia E Keyes
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Glasvenin, Dublin D09 W6Y4, Ireland
| | - Jessica L Rouge
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
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Wan X, Xiao J, Yin M, Yao Y, Luo J. Counterion-induced antibiotic-based small-molecular micelles for methicillin-resistant Staphylococcus aureus infections. Acta Biomater 2023; 166:627-639. [PMID: 37220819 DOI: 10.1016/j.actbio.2023.05.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/25/2023]
Abstract
A new counterion-induced small-molecule micelle (SM) with surface charge-switchable activities for methicillin-resistant Staphylococcus aureus (MRSA) infections is proposed. The amphiphilic molecule formed by zwitterionic compound and the antibiotic ciprofloxacin (CIP), via a "mild salifying reaction" of the amino and benzoic acid groups, can spontaneously assemble into counterion-induced SMs in water. Through vinyl groups designed on zwitterionic compound, the counterion-induced SMs could be readily cross-linked using mercapto-3, 6-dioxoheptane by click reaction, to create pH-sensitive cross-linked micelles (CSMs). Mercaptosuccinic acid was also decorated on the CSMs (DCSMs) by the same click reaction to afford charge-switchable activities, resulting in CSMs that were biocompatible with red blood cells and mammalian cells in normal tissues (pH 7.4), while having strong retention to negatively charged bacterial surfaces at infection sites, based on electrostatic interaction (pH 5.5). As a result, the DCSMs could penetrate deep into bacterial biofilms and then release drugs in response to the bacterial microenvironment, effectively killing the bacteria in the deeper biofilm. The new DCSMs have several advantages such as robust stability, a high drug loading content (∼ 30%), easy fabrication, and good structural control. Overall, the concept holds promise for the development of new products for clinical application. STATEMENT OF SIGNIFICANCE: We fabricated a new counterion-induced small-molecule micelle with surface charge-switchable activities (DCSMs) for methicillin-resistant Staphylococcus aureus (MRSA) infections. Compared with reported covalent systems, the DCSMs not only have improved stability, high drug loading content (∼ 30%), and good biosafety, but also have the environmental stimuli response, and antibacterial activity of the original drugs. As a result, the DCSMs exhibited enhanced antibacterial activities against MRSA both in vitro and in vivo. Overall, the concept holds promise for the development of new products for clinical application.
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Affiliation(s)
- Xiaohui Wan
- College of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Jipeng Xiao
- College of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Meihui Yin
- College of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Yongchao Yao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Jianbin Luo
- College of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China.
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Agrahari AK, Bose P, Jaiswal MK, Rajkhowa S, Singh AS, Hotha S, Mishra N, Tiwari VK. Cu(I)-Catalyzed Click Chemistry in Glycoscience and Their Diverse Applications. Chem Rev 2021; 121:7638-7956. [PMID: 34165284 DOI: 10.1021/acs.chemrev.0c00920] [Citation(s) in RCA: 162] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Copper(I)-catalyzed 1,3-dipolar cycloaddition between organic azides and terminal alkynes, commonly known as CuAAC or click chemistry, has been identified as one of the most successful, versatile, reliable, and modular strategies for the rapid and regioselective construction of 1,4-disubstituted 1,2,3-triazoles as diversely functionalized molecules. Carbohydrates, an integral part of living cells, have several fascinating features, including their structural diversity, biocompatibility, bioavailability, hydrophilicity, and superior ADME properties with minimal toxicity, which support increased demand to explore them as versatile scaffolds for easy access to diverse glycohybrids and well-defined glycoconjugates for complete chemical, biochemical, and pharmacological investigations. This review highlights the successful development of CuAAC or click chemistry in emerging areas of glycoscience, including the synthesis of triazole appended carbohydrate-containing molecular architectures (mainly glycohybrids, glycoconjugates, glycopolymers, glycopeptides, glycoproteins, glycolipids, glycoclusters, and glycodendrimers through regioselective triazole forming modular and bio-orthogonal coupling protocols). It discusses the widespread applications of these glycoproducts as enzyme inhibitors in drug discovery and development, sensing, gelation, chelation, glycosylation, and catalysis. This review also covers the impact of click chemistry and provides future perspectives on its role in various emerging disciplines of science and technology.
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Affiliation(s)
- Anand K Agrahari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Priyanka Bose
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Manoj K Jaiswal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Sanchayita Rajkhowa
- Department of Chemistry, Jorhat Institute of Science and Technology (JIST), Jorhat, Assam 785010, India
| | - Anoop S Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Srinivas Hotha
- Department of Chemistry, Indian Institute of Science and Engineering Research (IISER), Pune, Maharashtra 411021, India
| | - Nidhi Mishra
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Vinod K Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
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Hoyos P, Perona A, Juanes O, Rumbero Á, Hernáiz MJ. Synthesis of Glycodendrimers with Antiviral and Antibacterial Activity. Chemistry 2021; 27:7593-7624. [PMID: 33533096 DOI: 10.1002/chem.202005065] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Indexed: 12/27/2022]
Abstract
Glycodendrimers are an important class of synthetic macromolecules that can be used to mimic many structural and functional features of cell-surface glycoconjugates. Their carbohydrate moieties perform key important functions in bacterial and viral infections, often regulated by carbohydrate-protein interactions. Several studies have shown that the molecular structure, valency and spatial organisation of carbohydrate epitopes in glycoconjugates are key factors in the specificity and avidity of carbohydrate-protein interactions. Choosing the right glycodendrimers almost always helps to interfere with such interactions and blocks bacterial or viral adhesion and entry into host cells as an effective strategy to inhibit bacterial or viral infections. Herein, the state of the art in the design and synthesis of glycodendrimers employed for the development of anti-adhesion therapy against bacterial and viral infections is described.
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Affiliation(s)
- Pilar Hoyos
- Chemistry in Pharmaceutical Sciences Department, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
| | - Almudena Perona
- Chemistry in Pharmaceutical Sciences Department, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
| | - Olga Juanes
- Organic Chemistry Department, Autónoma University of Madrid, Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | - Ángel Rumbero
- Organic Chemistry Department, Autónoma University of Madrid, Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | - María J Hernáiz
- Chemistry in Pharmaceutical Sciences Department, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
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Bose I, Zhao Y. Tandem Aldol Reaction from Acetal Mixtures by an Artificial Enzyme with Site-Isolated Acid and Base Functionalities. ACS APPLIED POLYMER MATERIALS 2021; 3:2776-2784. [PMID: 34447941 PMCID: PMC8384266 DOI: 10.1021/acsapm.1c00299] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Site-isolation of catalysts can enable incompatible catalysts such as acid and base to be used in one pot for enhanced efficiency and other benefits. Although many synthetic platforms have been reported for this purpose, they generally do not possess the exquisite selectivity of site-isolated enzymes in nature. Here we report water-soluble protein-sized nanoparticles with site-isolated acids in the core and amines on the surface. The catalysts were made through molecular imprinting of cross-linked micelles, followed by facile one-step photoaffinity labeling of the imprinted binding site. With a tunable, substrate-specific active site, the bifunctional artificial enzyme catalyzed highly selective tandem cross aldol reaction between acetone and mixtures of isomeric aryl acetals. It could also transform a less reactive substrate over a more reactive one.
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Liu H, Xu G, Zhu T, Wang R, Tan J, Zhao C, Gu X. Rational design of water-dispersible and biocompatible nanoprobes with H 2S-triggered NIR emission for cancer cell imaging. J Mater Chem B 2020; 8:6013-6016. [PMID: 32633308 DOI: 10.1039/d0tb00173b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present an approach for constructing a H2S-specific nanoprobe by the entrapment of a small molecule probe within the hydrophobic interior of surface cross-linked micelles (SCMs), endowing the designed nanoprobes with good water solubility and biocompatibility. Importantly, the obtained nanoprobes displayed good responsiveness to H2S in both ratiometric fluorescence and light-up NIR emission modes, thus enabling accurate identification of H2S-rich colorectal cancer cells.
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Affiliation(s)
- Hengyan Liu
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China.
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Zhang Q, Chen Y, Lu R, Yao Y, Li C, Yu Y, Zhang S. Cross-linked small-molecule capsules with excitation wavelength-dependent photoluminescence and high loading capacity: design, synthesis and application in imaging-guided drug delivery. J Mater Chem B 2020; 8:2719-2725. [PMID: 32149293 DOI: 10.1039/c9tb02465d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cross-linked small-molecule micelles (cSMs) have found applications in many fields but their low loading capacity and non-fluorescence property hindered their further development. Herein, water-soluble organic nanoparticles were applied as templates to "stretch" the hydrophobic core of cSMs and photo-cross-linking was employed to supply photoluminescence. The resulting cross-linked small-molecule capsules (cSCs) not only reserve the superior properties of cSMs of accurate monomer, easy functionalization and robust stability, but also achieve high drug loading capacity and excitation wavelength-dependent fluorescence, where the drug loading contents (DLCs) for various hydrophobic drugs were more than 30-fold higher than that of cSMs, and the maximum quantum yield could be as high as 12.0%. Featuring these superiorities, the cSCs hold promising potential in many fields and an example of doxorubicin-loaded cSCs (DOX@cSCs) for multichannel imaging-guided drug delivery is shown in this work.
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Affiliation(s)
- Qian Zhang
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Yun Chen
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Ruilin Lu
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Yongchao Yao
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Chuanqi Li
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Yunlong Yu
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Shiyong Zhang
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China. and College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
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Yao Y, Xu D, Zhu Y, Dai X, Yu Y, Luo J, Zhang S. Dandelion flower-like micelles. Chem Sci 2019; 11:757-762. [PMID: 34123049 PMCID: PMC8146335 DOI: 10.1039/c9sc05741b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 11/23/2019] [Indexed: 11/21/2022] Open
Abstract
Dandelion flower-like micelles (DFMs) were prepared by self-assembly of polycaprolactone (PCL) functionalized surface cross-linked micelles (SCMs). Upon reductive stimuli, the SCMs can be released from the DFMs by non-Brownian motion at an average speed of 19.09 μm s-1. Similar to the property of dandelion flowers dispersing their seeds over a long distance, the DFMs demonstrated enhanced multicellular tumor spheroid (MTS) penetration, a useful property in the treatment of many diseases including cancer, infection-of-biofilm diseases and ocular problems.
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Affiliation(s)
- Yongchao Yao
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Deqiu Xu
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University Chengdu 610041 China
- Sichuan Guojian Inspection Co., Ltd. 646000 Luzhou Sichuan China
| | - Yuhong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Xin Dai
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Yunlong Yu
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Jianbin Luo
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University Chengdu 610041 China
| | - Shiyong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University 29 Wangjiang Road Chengdu 610064 China
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Duan L, Zhao Y. Zwitterionic Molecularly Imprinted Cross-Linked Micelles for Alkaloid Recognition in Water. J Org Chem 2019; 84:13457-13464. [PMID: 31545044 DOI: 10.1021/acs.joc.9b01629] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecular imprinting within surface/core doubly cross-linked micelles afforded water-soluble nanoparticle receptors for their template molecules. Extremely strong imprinting effects were consistently observed, with the imprinting factor >100:1 in comparison to nonimprinted nanoparticles prepared without the templates. The ionic nature of the cross-linkable surfactant strongly impacted the imprinting and binding process. Imprinted receptors prepared with a zwitterionic cross-linkable surfactant (4) outperformed a similar cationic one (1) when the template was zwitterionic or cationic and preferred their templates over structural analogues regardless of their ionic characteristics. Electrostatic interactions, however, dominated the receptors made with the cationic surfactant. The same micellar imprinting applied to simple as well as complex alkaloids. Imprinted receptors from 4 were also shown to categorize their alkaloid guests according to their structural similarity.
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Affiliation(s)
- Likun Duan
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
| | - Yan Zhao
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
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Fa S, Zhao Y. General Method for Peptide Recognition in Water through Bioinspired Complementarity. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2019; 31:4889-4896. [PMID: 32921904 PMCID: PMC7486028 DOI: 10.1021/acs.chemmater.9b01613] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A general method for peptide recognition has been elusive despite decades of research. Strong binding and selectivity among closely related peptides are necessary for biological applications but have been difficult to achieve with synthetic receptors. With inspiration from highly specific protein-protein and protein-ligand interactions, protein-sized, water-soluble imprinted nanoparticles were prepared via templated polymerization of peptides within cross-linked micelles. Combination of hydrophobic and polar interactions afforded micromolar to submicromolar binding affinities for selected tripeptides. A "golden pair" of functional monomers was identified to enhance both the affinity and selectivity of binding, and enabled differentiation of subtly different sequences including single-point variation of lysine by arginine and insertion of a single glycine at the N- or C-terminus. Biological peptides (β-amyloid peptides) afforded even stronger binding (tens of nanomolar) due to a larger number of complementary interactions between the host and the guest, opening doors to a wide range of biological applications.
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Affiliation(s)
- Shixin Fa
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111
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Hu L, Zhao Y. A Bait‐and‐Switch Method for the Construction of Artificial Esterases for Substrate‐Selective Hydrolysis. Chemistry 2019; 25:7702-7710. [DOI: 10.1002/chem.201900560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Lan Hu
- Department of ChemistryIowa State University Ames IA 50011-3111 USA
| | - Yan Zhao
- Department of ChemistryIowa State University Ames IA 50011-3111 USA
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14
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Naked eye detection of an amplified gene using metal particle-based DNA transport within functionalized porous interfaces. Talanta 2019; 195:97-102. [DOI: 10.1016/j.talanta.2018.11.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/12/2018] [Accepted: 11/12/2018] [Indexed: 11/17/2022]
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Liu F, He D, Yu Y, Cheng L, Zhang S. Quaternary Ammonium Salt-Based Cross-Linked Micelles to Combat Biofilm. Bioconjug Chem 2019; 30:541-546. [PMID: 30726061 DOI: 10.1021/acs.bioconjchem.9b00010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Due to self-produced extracellular polymeric substances (EPS), biofilms are hard to eradicate by common antimicrobials. Herein, a new quaternary ammonium salt based cross-linked micelle (QAS@CM) was created to combat biofilms. The QAS@CM adsorbed first onto the biofilm surface through multicharged interaction, then penetrated the EPS in the form of nanoparticles and diffused throughout the films. By responding to the biofilm acid/lipase microenvironment, these nanoparticles would further break into quaternary ammonium oligomers and act as the polyvalent inhibitors to effectively destroy the established biofilm and kill the corresponding bacteria within it.
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Affiliation(s)
- Fangqin Liu
- National Engineering Research Center for Biomaterials, and College of Chemistry , Sichuan University , 29 Wangjiang Road , Chengdu 610064 , China
| | - Dengfeng He
- National Engineering Research Center for Biomaterials, and College of Chemistry , Sichuan University , 29 Wangjiang Road , Chengdu 610064 , China
| | - Yunlong Yu
- National Engineering Research Center for Biomaterials, and College of Chemistry , Sichuan University , 29 Wangjiang Road , Chengdu 610064 , China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases , Sichuan University , Chengdu 610041 , China
| | - Shiyong Zhang
- National Engineering Research Center for Biomaterials, and College of Chemistry , Sichuan University , 29 Wangjiang Road , Chengdu 610064 , China
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16
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Yao Y, Li C, Liu F, Zhao P, Gu Z, Zhang S. Covalent capture of supramolecular species in an aqueous solution of water-miscible small organic molecules. Phys Chem Chem Phys 2019; 21:10477-10487. [DOI: 10.1039/c9cp01427f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Covalent capture was used to study the structure of the supramolecular species formed in an aqueous solution of water-miscible organic molecules.
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Affiliation(s)
- Yongchao Yao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Chuanqi Li
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Fangqin Liu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Pengxiang Zhao
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- College of Materials Science and Engineering
| | - Shiyong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
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17
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Neal TA, Wang W, Zhiquan L, Peng R, Soni P, Xie H, Badjić JD. A Hexavalent Basket for Bottom‐Up Construction of Functional Soft Materials and Polyvalent Drugs through a “Click” Reaction. Chemistry 2018; 25:1242-1248. [PMID: 30466183 DOI: 10.1002/chem.201805246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 11/19/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Taylor A. Neal
- Department of Chemistry & Biochemistry The Ohio State University 100 West 18th Avenue 43210 Columbus Ohio USA
| | - Weikun Wang
- Department of Chemistry & Biochemistry The Ohio State University 100 West 18th Avenue 43210 Columbus Ohio USA
| | - Lei Zhiquan
- Department of Chemistry & Biochemistry The Ohio State University 100 West 18th Avenue 43210 Columbus Ohio USA
| | - Ruojing Peng
- Department of Chemistry & Biochemistry The Ohio State University 100 West 18th Avenue 43210 Columbus Ohio USA
| | - Priti Soni
- Department of Chemistry & Biochemistry The Ohio State University 100 West 18th Avenue 43210 Columbus Ohio USA
| | - Han Xie
- Department of Chemistry & Biochemistry The Ohio State University 100 West 18th Avenue 43210 Columbus Ohio USA
| | - Jovica D. Badjić
- Department of Chemistry & Biochemistry The Ohio State University 100 West 18th Avenue 43210 Columbus Ohio USA
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Zhang S, Zhao Y. Tuning surface-cross-linking of molecularly imprinted cross-linked micelles for molecular recognition in water. J Mol Recognit 2018; 32:e2769. [PMID: 30419606 DOI: 10.1002/jmr.2769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/09/2018] [Accepted: 10/15/2018] [Indexed: 12/12/2022]
Abstract
Molecular recognition in water is an important challenge in supramolecular chemistry. Surface-core double cross-linking of template-containing surfactant micelles by the click reaction and free radical polymerization yields molecularly imprinted nanoparticles (MINPs) with guest-complementary binding sites. An important property of MINP-based receptors is the surface-cross-linking between the propargyl groups of the surfactants and a diazide cross-linker. Decreasing the number of carbons in between the two azides enhanced the binding affinity of the MINPs, possibly by keeping the imprinted binding site more open prior to the guest binding. The depth of the binding pocket can be controlled by the distribution of the hydrophilic/hydrophobic groups of the template and was found to influence the binding in addition to electrostatic interactions between oppositely charged MINPs and guests. Cross-linkers with an alkoxyamine group enabled two-stage double surface-cross-linking that strengthened the binding constants by an order of magnitude, possibly by expanding the binding pocket of the MINP into the polar region. The binding selectivity among very similar isomeric structures also improved.
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Affiliation(s)
- Shize Zhang
- Department of Chemistry, Iowa State University, Ames, IA, USA
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, IA, USA
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19
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Zhao Y. Sequence-Selective Recognition of Peptides in Aqueous Solution: A Supramolecular Approach through Micellar Imprinting. Chemistry 2018; 24:14001-14009. [PMID: 29694679 PMCID: PMC6150789 DOI: 10.1002/chem.201801401] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/20/2018] [Indexed: 11/09/2022]
Abstract
Sequence-selective recognition of peptides in water has been one of the most important and yet unsolved problems in bioorganic and supramolecular chemistry. The motivation comes from not only the importance of these molecules in biology but also the fundamental challenges involved in the research. Molecular imprinting in doubly cross-linked surfactant micelles offers a unique solution to this problem by creating a "supramolecular code" on the micelle surface that matches the structural features of the peptide chain. Hydrophobic "dimples" are constructed on imprinted micelles that match the hydrophobic side chains of the peptide precisely in size and shape. Polar binding functionalities are installed at correct positions to interact with specific acidic and basic groups on the peptide. Secondary hydrogen-bonding and electrostatic interactions are introduced through imprinting to enhance the binding affinity and specificity further. Binding affinities of tens of nanomolar are readily achieved in water for biological peptides with over a dozen residues. Excellent binding selectivity is observed even for subtly different peptides. The synthesis of these protein-sized nanoparticles involves a one-pot reaction complete within 2 days; purification requires nothing but precipitation and solvent washing. These features make the molecularly imprinted nanoparticles (MINPs) highly promising peptide-binding "artificial antibodies" for chemical and biological applications.
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Affiliation(s)
- Yan Zhao
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111, U.S.A., Fax: (+1) 515-294-0105,
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20
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Feng J, Luo Q, Chen Y, Li B, Luo K, Lan J, Yu Y, Zhang S. DOTA Functionalized Cross-Linked Small-Molecule Micelles for Theranostics Combining Magnetic Resonance Imaging and Chemotherapy. Bioconjug Chem 2018; 29:3402-3410. [PMID: 30200761 DOI: 10.1021/acs.bioconjchem.8b00565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Qiang Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | | | | | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
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21
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Arifuzzaman MD, Zhao Y. Artificial Zinc Enzymes with Fine-Tuned Active Sites for Highly Selective Hydrolysis of Activated Esters. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02292] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- MD Arifuzzaman
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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22
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Arifuzzaman MD, Zhao W, Zhao Y. Surface Ligands in the Imprinting and Binding of Molecularly Imprinted Cross-Linked Micelles. Supramol Chem 2018; 30:929-939. [PMID: 31223222 PMCID: PMC6585997 DOI: 10.1080/10610278.2018.1489540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/08/2018] [Indexed: 10/28/2022]
Abstract
Molecular recognition in water is challenging but water-soluble molecularly imprinted nanoparticle (MINP) receptors were produced readily by double cross-linking of surfactant micelles in the presence of suitable template molecules. When the micellar surface was decorated with different polyhydroxylated ligands, significant interactions could be introduced between the surface ligands and the template. Flexible surface ligands worked better than rigid ones to interact with the polar moiety of the template, especially for those template molecules whose water-exposed surface is not properly solvated by water. The importance of these hydrophilic interactions was examined in the context of different substrates, density of the surface ligands, and surface-cross-linking density of the MINP. Together with the hydrophobic interactions in the core, the surface hydrophilic interactions can be used to enhance the binding of guest molecules in water.
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Affiliation(s)
- M D Arifuzzaman
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, USA, Tel: +1-515-294-5845
| | - Wei Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, USA, Tel: +1-515-294-5845
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, USA, Tel: +1-515-294-5845
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23
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Duan L, Zhao Y. Selective Binding of Folic Acid and Derivatives by Imprinted Nanoparticle Receptors in Water. Bioconjug Chem 2018. [PMID: 29513991 DOI: 10.1021/acs.bioconjchem.8b00121] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Folate receptors are overexpressed on cancer cells and frequently used for targeted delivery. Creation of synthetic receptors to bind folic acid and its analogues in water, however, is challenging because of its complex hydrogen-bonding patterns and competition for hydrogen bonds from the solvent. Micellar imprinting within cross-linkable surfactants circumvented these problems because the nonpolar micellar environment strengthened the hydrogen bonds between the amide group in the surfactant and the template molecule. Incorporation of polymerizable thiouronium functional monomers further enhanced the binding through hydrogen-bond-reinforced ion pairs with the glutamate moiety of the template. The resulting imprinted micelles were able to bind folate and their analogues with submicromolar affinity and distinguish small changes in the hydrogen-bonding patterns as well as the number/position of carboxylic acids. The binding constant obtained was 2-3 orders of magnitude higher than those reported for small-molecule synthetic receptors. Our binding study also revealed interesting details in the binding. For example, the relative contributions of different segments of the molecule to the binding followed the order of carboxylates > pyrimidine ring > pyrazine ring.
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Affiliation(s)
- Likun Duan
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
| | - Yan Zhao
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
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24
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Chen Y, Liu Y, Yao Y, Zhang S, Gu Z. Reverse micelle-based water-soluble nanoparticles for simultaneous bioimaging and drug delivery. Org Biomol Chem 2018; 15:3232-3238. [PMID: 28327735 DOI: 10.1039/c7ob00169j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
With special confined water pools, reverse micelles (RMs) have shown potential for a wide range of applications. However, the inherent water-insolubility of RMs hinders their further application prospects, especially for applications related to biology. We recently reported the first successful transfer of RMs from organic media to an aqueous phase without changing the smart water pools by the hydrolysis of an arm-cleavable interfacial cross-linked reverse micelles. Herein, we employed another elaborate amphiphile 1 to construct new acrylamide-based cross-linked water-soluble nanoparticles (ACW-NPs) under much gentler conditions. The special property of the water pools of the ACW-NPs was confirmed by both the Förster resonance energy transfer (FRET) between 5-((2-aminoethyl)amino)naphthalene-1-sulfonic acid (1,5-EDANS) and benzoic acid, 4-[2-[4-(dimethylamino)phenyl]diazenyl] (DABCYL) and satisfactory colloidal stability in 10% fetal bovine serum. Importantly, featured by the gentle synthetic strategy, confined water pool, and carboxylic acid-functionalized surface, the new ACW-NPs are well suitable for biological applications. As an example, the fluorescent reagent 8-hydroxy-1,3,6-pyrenetrisulfonic acid trisodium salt (HPTS) was encapsulated in the core and simultaneously, the anticancer drug gemcitabine (Gem) was covalently conjugated onto the surface exterior. As expected, the resulting multifunctional ACW-NPs@HPTS@Gem exhibits a high imaging effect and anticancer activity for non-small lung cancer cells.
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Affiliation(s)
- Ying Chen
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
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25
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Fa S, Zhao Y. Water-Soluble Nanoparticle Receptors Supramolecularly Coded for Acidic Peptides. Chemistry 2018; 24:150-158. [PMID: 29096045 PMCID: PMC5891325 DOI: 10.1002/chem.201703760] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 01/20/2023]
Abstract
Sequence-specific recognition of peptides is of enormous importance to many chemical and biological applications, but has been difficult to achieve due to the minute differences in the side chains of amino acids. Acidic peptides are known to play important roles in cell growth and gene expression. In this work, we report molecularly imprinted micelles coded with molecular recognition information for the acidic and hydrophobic side chains of acidic peptides. The imprinted receptors could distinguish acidic amino acids from other polar and nonpolar amino acids, with dissociation constants of tens of nanomolar for biologically active peptides containing up to 18 amino acids.
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Affiliation(s)
- Shixin Fa
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111, U.S.A
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111, U.S.A
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26
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Liang J, Li M, Ren B, Wu T, Xu HHK, Liu Y, Peng X, Yang G, Weir MD, Zhang S, Cheng L, Zhou X. The anti-caries effects of dental adhesive resin influenced by the position of functional groups in quaternary ammonium monomers. Dent Mater 2017; 34:400-411. [PMID: 29269159 DOI: 10.1016/j.dental.2017.11.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/06/2017] [Accepted: 11/20/2017] [Indexed: 02/05/2023]
Abstract
OBJECTIVES A new quaternary ammonium monomer (QAM), triethylaminododecyl acrylate (TEADDA) was synthesized, in which the position of the functional groups was different from that of dimethylaminododecyl methacrylate (DMADDM). The objectives were to: (1) investigate the effect of the changed position of the functional groups on the mechanical properties, anti-biofilm activity and biocompatibility of adhesive resin, and (2) study the anti-bacterial mechanism of QAM to improve the performance of the adhesive system modified by QAM. METHODS TEADDA and DMADDM were added into adhesives. Microtensile bond strength and surface charge density were measured. Multi-species biofilms were incubated on specimens for 16h, 48h and 72h and analyzed via MTT assay, lactic acid measurement and confocal laser scanning microscopy. The ratio of different species of bacteria was measured by real-time polymerase chain reaction. Cytotoxicity and biocompatibility were analyzed by eluents cytotoxicity test and histological images of H&E staining via an animal study in rats. RESULTS The mass fraction of TEDDA allowed to be added into adhesive was higher than that of DMADDM. However, even 10% TEADDA did not yield a strong anti-biofilm effect on biofilm growth, lactic acid production and bacteria compositions. TEADDA added into adhesives showed better mechanical properties but weaker anti-bacterial effect. There was no significant difference on cytotoxicity and biocompatibility between DMADDM and TEADDA. SIGNIFICANCE The study could be helpful for the investigation of the anti-caries mechanism of QAMs, the design of new QAMs and the improvement of the anti-caries activity of the modified dental materials.
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Affiliation(s)
- Jingou Liang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China; Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Mingyun Li
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China
| | - Biao Ren
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China
| | - Tianmu Wu
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China; Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Hockin H K Xu
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Yong Liu
- National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xian Peng
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China
| | - Ge Yang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China; Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Michael D Weir
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Shiyong Zhang
- National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China; Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China; Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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27
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Fa S, Zhao Y. Peptide-Binding Nanoparticle Materials with Tailored Recognition sites for Basic Peptides. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2017; 29:9284-9291. [PMID: 29725162 PMCID: PMC5926195 DOI: 10.1021/acs.chemmater.7b03253] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Peptides rich in basic residues such as lysine and arginine play important roles in biology such as bacterial defense and cell penetration. Although peptide-binding materials with high sequence-specificity have broad potential applications, the diverse functionalities of peptide side chains make their molecular recognition extremely difficult. By covalently capturing micelles of a doubly cross-linkable surfactant with solubilized peptide templates, we prepared water-soluble molecularly imprinted nanoparticles with high sequence-specificity for basic peptides. The nanoparticles interact with the side chains of lysine and arginine through hydrogen bonds strengthened by the nonpolar environment of the micelle. They have hydrophobic pockets in their core complementary to the hydrophobic side chains in size and shape. These recognition sites allowed the micelles to bind basic biological peptides strongly in water, with tens to hundreds of nanomolar in binding affinity.
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Huang J, Yu Y, Wang L, Wang X, Gu Z, Zhang S. Tetraphenylethylene-Induced Cross-Linked Vesicles with Tunable Luminescence and Controllable Stability. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29030-29037. [PMID: 28776370 DOI: 10.1021/acsami.7b06954] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Luminescence-tunable vesicles (LTVs) are becoming increasingly attractive for their potential application in optics, electronics, and biomedical technology. However, for real applications, luminous efficiency and durability are two urgent constraints to be overcome. Combining the advantages of aggregation-induced emission in luminous enhancement and cross-linking in stability, we herein fabricated tetraphenylethylene-induced cross-linked vesicles with an entrapped acceptor of RhB (TPE-CVs@RhB), which achieved a high-efficiency multicolor emission of the visible spectrum, including white, by altering the amount of entrapped acceptor. Stability tests show that the luminescence of TPE-CVs@RhB has excellent environmental tolerance toward heating, dilution, doping of organic solvent, and storage in serum. Further outstanding performance in the application of fluorescent inks suggests that the new LTVs hold high potential in industrialization. More attractively, although the TPE-CVs@RhB can tolerate various harsh conditions, their stability can actually be controlled through the cross-linker adopted. For example, the employment of dithiothreitol in the present work produces an acid-labile β-thiopropionate linker. The cellular uptake by HepG2 cells shows that the acid-labile TPE-CVs@RhB can effectively respond to the acidic environment of cancer cells and release the entrapped RhB molecules, indicative of promising applications of this new type of LTVs in bioimaging and drug delivery.
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Affiliation(s)
- Jingsheng Huang
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Yunlong Yu
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Liang Wang
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Xingjian Wang
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Shiyong Zhang
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
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29
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Hu L, Zhao Y. Cross‐Linked Micelles with Enzyme‐Like Active Sites for Biomimetic Hydrolysis of Activated Esters. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700147] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lan Hu
- Department of Chemistry Iowa State University Ames Iowa 50011‐3111 USA
| | - Yan Zhao
- Department of Chemistry Iowa State University Ames Iowa 50011‐3111 USA
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30
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Gunasekara RW, Zhao Y. Intrinsic Hydrophobicity versus Intraguest Interactions in Hydrophobically Driven Molecular Recognition in Water. Org Lett 2017; 19:4159-4162. [DOI: 10.1021/acs.orglett.7b01535] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roshan W. Gunasekara
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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31
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Awino JK, Zhao Y. Imprinted micelles for chiral recognition in water: shape, depth, and number of recognition sites. Org Biomol Chem 2017; 15:4851-4858. [PMID: 28537295 PMCID: PMC5902669 DOI: 10.1039/c7ob00764g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Chiral molecular recognition is important to biology, separation, and asymmetric catalysis. Because there is no direct correlation between the chiralities of the host and the guest, it is difficult to design a molecular receptor for a chiral guest in a rational manner. By cross-linking surfactant micelles containing chiral template molecules, we obtained chiral nanoparticle receptors for a number of 4-hydroxyproline derivatives. Molecular imprinting allowed us to transfer the chiral information directly from the guest to host, making the molecular recognition between the two highly predictable. Hydrophobic interactions between the host and the guest contributed strongly to the enantio- and diastereoselective differentiation of these compounds in water, whereas ion-pair interactions, which happened near the surface of the micelle, were less discriminating. The chiral recognition could be modulated by tuning the size and shape of the binding pockets.
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Affiliation(s)
- Joseph K Awino
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, USA.
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32
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Awino JK, Gunasekara RW, Zhao Y. Sequence-Selective Binding of Oligopeptides in Water through Hydrophobic Coding. J Am Chem Soc 2017; 139:2188-2191. [PMID: 28128940 PMCID: PMC5310974 DOI: 10.1021/jacs.6b12949] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A general method for sequence-specific binding of peptides remains elusive despite decades of research. By creating an array of "hydrophobically coded dimples" on the surface of surface-core doubly cross-linked micelles, we synthesized water-soluble nanoparticle receptors to recognize peptides by the location, number, and nature of their hydrophobic side chains. Minute differences in the side chains could be distinguished, and affinities up to 20 nM were obtained for biologically active oligopeptides in water.
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Affiliation(s)
- Joseph K. Awino
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
| | | | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
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33
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Gunasekara RW, Zhao Y. A General Method for Selective Recognition of Monosaccharides and Oligosaccharides in Water. J Am Chem Soc 2017; 139:829-835. [PMID: 27983819 PMCID: PMC5243169 DOI: 10.1021/jacs.6b10773] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Molecular recognition of carbohydrates plays vital roles in biology but has been difficult to achieve with synthetic receptors. Through covalent imprinting of carbohydrates in boroxole-functionalized cross-linked micelles, we prepared nanoparticle receptors for a wide variety of mono- and oligosaccharides. The boroxole functional monomer bound the sugar templates through cis-1,2-diol, cis-3,4-diol, and trans-4,6-diol. The protein-sized nanoparticles showed excellent selectivity for d-aldohexoses in water with submillimolar binding affinities and completely distinguished the three biologically important hexoses (glucose, mannose, and galactose). Glycosides with nonpolar aglycon showed stronger binding due to enhanced hydrophobic interactions. Oligosaccharides were distinguished on the basis of their monosaccharide building blocks, glycosidic linkages, chain length, as well as additional functional groups that could interact with the nanoparticles.
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Affiliation(s)
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
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34
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Huang J, Wu F, Yu Y, Huang H, Zhang S, You J. Lipoic acid based core cross-linked micelles for multivalent platforms: design, synthesis and application in bio-imaging and drug delivery. Org Biomol Chem 2017; 15:4798-4802. [DOI: 10.1039/c7ob00927e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Natural lipoic acid derived small-molecule amphiphiles self-assemble into micelles in water.
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Affiliation(s)
| | - Fang Wu
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Yunlong Yu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Haolong Huang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Shiyong Zhang
- College of Chemistry
- Sichuan University
- Chengdu
- China
- National Engineering Research Center for Biomaterials
| | - Jingsong You
- College of Chemistry
- Sichuan University
- Chengdu
- China
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35
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Pranantyo D, Xu LQ, Hou Z, Kang ET, Chan-Park MB. Increasing bacterial affinity and cytocompatibility with four-arm star glycopolymers and antimicrobial α-polylysine. Polym Chem 2017. [DOI: 10.1039/c7py00441a] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cationic polypeptide arms disintegrate bacterial membranes, while glycopolymer arms promote biocompatibility with simultaneous targeting of the bacterial surface.
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Affiliation(s)
- Dicky Pranantyo
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Kent Ridge
- Singapore 119260
| | - Li Qun Xu
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Kent Ridge
- Singapore 119260
| | - Zheng Hou
- Centre of Antimicrobial Bioengineering
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
| | - En-Tang Kang
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Kent Ridge
- Singapore 119260
| | - Mary B. Chan-Park
- Centre of Antimicrobial Bioengineering
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
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36
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Li B, Yu Y, Zhao P, Zhang S. Triazole-Containing Dendrimer-like Core Cross-Linked Micelles that Stabilize Pd Nanoparticles as Heterogenized Homogeneous Catalysts for Room-Temperature Suzuki-Miyaura Reactions in Water. Chem Asian J 2016; 11:3550-3556. [DOI: 10.1002/asia.201601248] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Bing Li
- National Engineering Research Centre for Biomaterials; Sichuan University; 29 Wangjiang Road Chengdu 610064 China
| | - Yangyang Yu
- National Engineering Research Centre for Biomaterials; Sichuan University; 29 Wangjiang Road Chengdu 610064 China
| | - Pengxiang Zhao
- Science and Technology on Surface Physics and Chemistry Laboratory; Mianyang 621907, Sichuan China
| | - Shiyong Zhang
- National Engineering Research Centre for Biomaterials; Sichuan University; 29 Wangjiang Road Chengdu 610064 China
- College of Chemistry; Sichuan University; 29 Wangjiang Road Chengdu 610064 China
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37
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Arifuzzaman MD, Zhao Y. Water-Soluble Molecularly Imprinted Nanoparticle Receptors with Hydrogen-Bond-Assisted Hydrophobic Binding. J Org Chem 2016; 81:7518-26. [PMID: 27462993 PMCID: PMC5010460 DOI: 10.1021/acs.joc.6b01191] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Molecularly imprinted nanoparticles (MINPs) were prepared when surfactants with a tripropargylammonium headgroup and a methacrylate-functionalized hydrophobic tail were cross-linked in the micelle form on the surface and in the core in the presence of hydrophobic template molecules. With the surfactants containing an amide bond near the headgroup, the MINPs had a layer of hydrogen-bonding groups in the interior that strongly influenced their molecular recognition. Templates/guests with strong hydrogen-bonding groups in the midsection of the molecule benefited most, especially if the hydrophobe of the template could penetrate the amide layer to reach the hydrophobic core of the cross-linked micelles. The location and the orientation of the hydrophilic groups were also important, as they determined how the template interacted with the surfactant micelles and, ultimately, with the MINP receptors.
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Affiliation(s)
- MD Arifuzzaman
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
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38
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Awino JK, Gunasekara RW, Zhao Y. Selective Recognition of d-Aldohexoses in Water by Boronic Acid-Functionalized, Molecularly Imprinted Cross-Linked Micelles. J Am Chem Soc 2016; 138:9759-62. [PMID: 27442012 PMCID: PMC4982515 DOI: 10.1021/jacs.6b04613] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Molecular imprinting within cross-linked micelles using 4-vinylphenylboronate derivatives of carbohydrates provided water-soluble nanoparticle receptors selective for the carbohydrate templates. Complete differentiation of d-aldohexoses could be achieved by these receptors if a single inversion of hydroxyl occurred at C2 or C4 of the sugar or if two or more inversions took place. Glycosides with a hydrophobic aglycan displayed stronger binding due to increased hydrophobic interactions.
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Affiliation(s)
- Joseph K. Awino
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
| | | | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
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39
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Zhao Y. Surface-Cross-Linked Micelles as Multifunctionalized Organic Nanoparticles for Controlled Release, Light Harvesting, and Catalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5703-13. [PMID: 27181610 PMCID: PMC4907858 DOI: 10.1021/acs.langmuir.6b01162] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/05/2016] [Indexed: 05/30/2023]
Abstract
Surfactant micelles are dynamic entities with a rapid exchange of monomers. By "clicking" tripropargylammonium-containing surfactants with diazide cross-linkers, we obtained surface-cross-linked micelles (SCMs) that could be multifunctionalized for different applications. They triggered membrane fusion through tunable electrostatic interactions with lipid bilayers. Antenna chromophores could be installed on them to create artificial light-harvesting complexes with efficient energy migration among tens to hundreds of chromophores. When cleavable cross-linkers were used, the SCMs could break apart in response to redox or pH signals, ejecting entrapped contents quickly as a result of built-in electrostatic stress. They served as caged surfactants whose surface activity was turned on by environmental stimuli. They crossed cell membranes readily. Encapsulated fluorophores showed enhanced photophysical properties including improved quantum yields and greatly expanded Stokes shifts. Catalytic groups could be installed on the surface or in the interior, covalently attached or physically entrapped. As enzyme mimics, the SCMs enabled rational engineering of the microenvironment around the catalysts to afford activity and selectivity not possible with conventional catalysts.
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Affiliation(s)
- Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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40
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Chadha G, Yang QZ, Zhao Y. Self-assembled light-harvesting supercomplexes from fluorescent surface-cross-linked micelles. Chem Commun (Camb) 2016; 51:12939-42. [PMID: 26185803 DOI: 10.1039/c5cc04377h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Fluorescent nanoparticles made of cross-linked dansylated surfactants allowed efficient donor-donor energy migration within and beyond the nanoparticles when the nanoparticles aggregated in the presence of oppositely charged energy acceptors. The light-harvesting system enabled a single acceptor to quench the emission of over 500 donor chromophores.
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Affiliation(s)
- Geetika Chadha
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, USA.
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41
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Awino JK, Hu L, Zhao Y. Molecularly Responsive Binding through Co-occupation of Binding Space: A Lock-Key Story. Org Lett 2016; 18:1650-3. [PMID: 27001464 PMCID: PMC4849124 DOI: 10.1021/acs.orglett.6b00527] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
When two guest molecules co-occupy a binding pocket of a water-soluble host, the first guest could be used as a signal molecule to turn on the binding of the second. This type of molecularly responsive binding strongly depends on the size of the two guests and the location of the signal molecule.
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Affiliation(s)
- Joseph K. Awino
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
| | - Lan Hu
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111
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42
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Tiwari VK, Mishra BB, Mishra KB, Mishra N, Singh AS, Chen X. Cu-Catalyzed Click Reaction in Carbohydrate Chemistry. Chem Rev 2016; 116:3086-240. [PMID: 26796328 DOI: 10.1021/acs.chemrev.5b00408] [Citation(s) in RCA: 540] [Impact Index Per Article: 67.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cu(I)-catalyzed azide-alkyne 1,3-dipolar cycloaddition (CuAAC), popularly known as the "click reaction", serves as the most potent and highly dependable tool for facile construction of simple to complex architectures at the molecular level. Click-knitted threads of two exclusively different molecular entities have created some really interesting structures for more than 15 years with a broad spectrum of applicability, including in the fascinating fields of synthetic chemistry, medicinal science, biochemistry, pharmacology, material science, and catalysis. The unique properties of the carbohydrate moiety and the advantages of highly chemo- and regioselective click chemistry, such as mild reaction conditions, efficient performance with a wide range of solvents, and compatibility with different functionalities, together produce miraculous neoglycoconjugates and neoglycopolymers with various synthetic, biological, and pharmaceutical applications. In this review we highlight the successful advancement of Cu(I)-catalyzed click chemistry in glycoscience and its applications as well as future scope in different streams of applied sciences.
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Affiliation(s)
- Vinod K Tiwari
- Department of Chemistry, Centre of Advanced Study, Institute of Science, Banaras Hindu University , Varanasi, Uttar Pradesh-221005, India
| | - Bhuwan B Mishra
- Department of Chemistry, Centre of Advanced Study, Institute of Science, Banaras Hindu University , Varanasi, Uttar Pradesh-221005, India
| | - Kunj B Mishra
- Department of Chemistry, Centre of Advanced Study, Institute of Science, Banaras Hindu University , Varanasi, Uttar Pradesh-221005, India
| | - Nidhi Mishra
- Department of Chemistry, Centre of Advanced Study, Institute of Science, Banaras Hindu University , Varanasi, Uttar Pradesh-221005, India
| | - Anoop S Singh
- Department of Chemistry, Centre of Advanced Study, Institute of Science, Banaras Hindu University , Varanasi, Uttar Pradesh-221005, India
| | - Xi Chen
- Department of Chemistry, One Shields Avenue, University of California-Davis , Davis, California 95616, United States
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43
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Jenkins R, Burdette MK, Foulger SH. Mini-review: fluorescence imaging in cancer cells using dye-doped nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra10473h] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Fluorescence imaging has gained increased attention over the past two decades as a viable means to detect a variety of cancers.
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Affiliation(s)
- Ragini Jenkins
- Center for Optical Materials Science and Engineering Technologies
- Department of Materials Science & Engineering
- Clemson University
- Clemson
- USA
| | - Mary K. Burdette
- Center for Optical Materials Science and Engineering Technologies
- Department of Materials Science & Engineering
- Clemson University
- Clemson
- USA
| | - Stephen H. Foulger
- Center for Optical Materials Science and Engineering Technologies
- Department of Materials Science & Engineering
- Clemson University
- Clemson
- USA
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44
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Yao L, Li X, Wang T, Zhao Y. Design and Synthesis of Cross-Linked Micellar Particles to Assist Microalgae Lipid Recovery from Aqueous Extract. J AM OIL CHEM SOC 2015. [DOI: 10.1007/s11746-015-2744-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Elshan NGRD, Jayasundera T, Anglin BL, Weber CS, Lynch RM, Mash EA. Trigonal scaffolds for multivalent targeting of melanocortin receptors. Org Biomol Chem 2015; 13:1778-91. [PMID: 25502141 DOI: 10.1039/c4ob02094d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Melanocortin receptors can be used as biomarkers to detect and possibly treat melanoma. To these ends, molecules bearing one, two, or three copies of the weakly binding ligand MSH(4) were attached to scaffolds based on phloroglucinol, tripropargylamine, and 1,4,7-triazacyclononane by means of the copper-assisted azide-alkyne cyclization. This synthetic design allows rapid assembly of multivalent molecules. The bioactivities of these compounds were evaluated using a competitive binding assay that employed human embryonic kidney cells engineered to overexpress the melanocortin 4 receptor. The divalent molecules exhibited 10- to 30-fold higher levels of inhibition when compared to the corresponding monovalent molecules, consistent with divalent binding. The trivalent molecules were only statistically (∼2-fold) better than the divalent molecules, still consistent with divalent binding but inconsistent with trivalent binding. Possible reasons for these behaviors and planned refinements of the multivalent constructs targeting melanocortin receptors based on these scaffolds are discussed.
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Affiliation(s)
- N G R Dayan Elshan
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721-0041, USA.
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46
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Peng HQ, Niu LY, Chen YZ, Wu LZ, Tung CH, Yang QZ. Biological Applications of Supramolecular Assemblies Designed for Excitation Energy Transfer. Chem Rev 2015; 115:7502-42. [DOI: 10.1021/cr5007057] [Citation(s) in RCA: 327] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hui-Qing Peng
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Li-Ya Niu
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, College
of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Yu-Zhe Chen
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Li-Zhu Wu
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Chen-Ho Tung
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- Collaborative
Innovation Center of Functionalized Probes for Chemical Imaging in
Universities of Shandong, Shandong Normal University, Jinan 250014, People’s Republic of China
| | - Qing-Zheng Yang
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, College
of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
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47
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Awino JK, Zhao Y. Polymeric Nanoparticle Receptors as Synthetic Antibodies for Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). ACS Biomater Sci Eng 2015; 1:425-430. [DOI: 10.1021/acsbiomaterials.5b00042] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joseph K. Awino
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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48
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Bian T, Wang C, Lu Z, Xie R, Yang QZ, Wu LZ, Tung CH, Liu Z, Yin Y, Zhang T. A versatile 'click chemistry' route to size-restricted, robust, and functionalizable hydrophilic nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:1644-1648. [PMID: 25504669 DOI: 10.1002/smll.201400673] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 09/29/2014] [Indexed: 06/04/2023]
Abstract
A versatile addition-crosslinking route is developed to transfer various hydrophobic nanocrystals into water. By assembling amphiphilic ligands and then crosslinking through 'click chemistry', a monolayer of polymer forms on the nanocrystal surface, leading to excellent stability and limited increase in hydrodynamic diameter. These nanocrystals can also be further functionalized easily for various applications such as catalysis, bioimaging, and medical therapy.
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Affiliation(s)
- Tong Bian
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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49
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Peng S, Gao J, Liu Y, Guo DS. Facile fabrication of cross-linked vesicle via “surface clicking” of calixarene-based supra-amphiphiles. Chem Commun (Camb) 2015; 51:16557-60. [DOI: 10.1039/c5cc05170c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cross-linked binary vesicle was constructed by calixarene-induced aggregation followed by a “click” reaction, showing improved performance over a dynamic vesicle.
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Affiliation(s)
- Shu Peng
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Jie Gao
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Yu Liu
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Dong-Sheng Guo
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
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50
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Lee LC, Xiao C, Huang W, Zhao Y. Palladium–gold bimetallic nanoparticle catalysts prepared by “controlled release” from metal-loaded interfacially cross-linked reverse micelles. NEW J CHEM 2015. [DOI: 10.1039/c4nj01905a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bimetallic Pd–Au nanoparticles prepared by a novel method were active catalysts for green oxidation of alcohol in water.
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Affiliation(s)
- Li-Chen Lee
- Department of Chemistry
- Iowa State University
- Ames
- USA
| | | | - Wenyu Huang
- Department of Chemistry
- Iowa State University
- Ames
- USA
| | - Yan Zhao
- Department of Chemistry
- Iowa State University
- Ames
- USA
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