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Huang YC, Zeng YJ, Lin YW, Tai HC, Don TM. In Situ Encapsulation of Camptothecin by Self-Assembly of Poly(acrylic acid)- b-Poly( N-Isopropylacrylamide) and Chitosan for Controlled Drug Delivery. Polymers (Basel) 2023; 15:polym15112463. [PMID: 37299263 DOI: 10.3390/polym15112463] [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: 04/11/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Camptothecin (CPT) has been shown to exhibit anticancer activity against several cancers. Nevertheless, CPT is very hydrophobic with poor stability, and thus its medical application is limited. Therefore, various drug carriers have been exploited for effectively delivering CPT to the targeted cancer site. In this study, a dual pH/thermo-responsive block copolymer of poly(acrylic acid-b-N-isopropylacrylamide) (PAA-b-PNP) was synthesized and applied to encapsulate CPT. At temperatures above its cloud point, the block copolymer self-assembled to form nanoparticles (NPs) and in situ encapsulate CPT, owing to their hydrophobic interaction as evidenced by fluorescence spectrometry. Chitosan (CS) was further applied on the surface through the formation of a polyelectrolyte complex with PAA for improving biocompatibility. The average particle size and zeta potential of the developed PAA-b-PNP/CPT/CS NPs in a buffer solution were 168 nm and -30.6 mV, respectively. These NPs were still stable at least for 1 month. The PAA-b-PNP/CS NPs exhibited good biocompatibility toward NIH 3T3 cells. Moreover, they could protect the CPT at pH 2.0 with a very slow-release rate. At pH 6.0, these NPs could be internalized by Caco-2 cells, followed by intracellular release of the CPT. They became highly swollen at pH 7.4, and the released CPT was able to diffuse into the cells at higher intensity. Among several cancer cell lines, the highest cytotoxicity was observed for H460 cells. As a result, these environmentally-responsive NPs have the potential to be applied in oral administration.
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Affiliation(s)
- Yi-Cheng Huang
- Department of Food Science, National Taiwan Ocean University, No. 2, Beining Rd., Zhongzheng Dist., Keelung City 202301, Taiwan
| | - Yang-Jie Zeng
- Department of Food Science, National Taiwan Ocean University, No. 2, Beining Rd., Zhongzheng Dist., Keelung City 202301, Taiwan
| | - Yu-Wei Lin
- Department of Chemical and Materials Engineering, Tamkang University, No. 151 Yingzhuan Rd., Tamsui Dist., New Taipei City 251301, Taiwan
| | - Hung-Chih Tai
- Department of Food Science, National Taiwan Ocean University, No. 2, Beining Rd., Zhongzheng Dist., Keelung City 202301, Taiwan
| | - Trong-Ming Don
- Department of Chemical and Materials Engineering, Tamkang University, No. 151 Yingzhuan Rd., Tamsui Dist., New Taipei City 251301, Taiwan
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2
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Liang H, Wei Y, Ji Y. Magnetic-responsive Covalent Adaptable Networks. Chem Asian J 2023; 18:e202201177. [PMID: 36645376 DOI: 10.1002/asia.202201177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/07/2023] [Accepted: 01/16/2023] [Indexed: 01/17/2023]
Abstract
Covalent adaptable networks (CANs) are reprocessable polymers whose structural arrangement is based on the recombination of dynamic covalent bonds. Composite materials prepared by incorporating magnetic particles into CANs attract much attention due to their remote and precise control, fast response speed, high biological safety and strong penetration of magnetic stimuli. These properties often involve magnetothermal effect and direct magnetic-field guidance. Besides, some of them can also respond to light, electricity or pH values. Thus, they are favorable for soft actuators since various functions are achieved such as magnetic-assisted self-healing (heating or at ambient temperature), welding (on land or under water), shape-morphing, and so on. Although magnetic CANs just start to be studied in recent two years, their advances are promised to expand the practical applications in both cutting-edge academic and engineering fields. This review aims to summarize recent progress in magnetic-responsive CANs, including their design, synthesis and application.
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Affiliation(s)
- Huan Liang
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yen Wei
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China.,Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, Chung-Yuan Christian University Chung-Li, 32023, Taiwan, P. R. China
| | - Yan Ji
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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3
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Functionalization of graphene oxide quantum dots for anticancer drug delivery. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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4
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Nano- and Crystal Engineering Approaches in the Development of Therapeutic Agents for Neoplastic Diseases. CRYSTALS 2022. [DOI: 10.3390/cryst12070926] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cancer is a leading cause of death worldwide. It is a global quandary that requires the administration of many different active pharmaceutical ingredients (APIs) with different characteristics. As is the case with many APIs, cancer treatments exhibit poor aqueous solubility which can lead to low drug absorption, increased doses, and subsequently poor bioavailability and the occurrence of more adverse events. Several strategies have been envisaged to overcome this drawback, specifically for the treatment of neoplastic diseases. These include crystal engineering, in which new crystal structures are formed to improve drug physicochemical properties, and/or nanoengineering in which the reduction in particle size of the pristine crystal results in much improved physicochemical properties. Co-crystals, which are supramolecular complexes that comprise of an API and a co-crystal former (CCF) held together by non-covalent interactions in crystal lattice, have been developed to improve the performance of some anti-cancer drugs. Similarly, nanosizing through the formation of nanocrystals and, in some cases, the use of both crystal and nanoengineering to obtain nano co-crystals (NCC) have been used to increase the solubility as well as overall performance of many anticancer drugs. The formulation process of both micron and sub-micron crystalline formulations for the treatment of cancers makes use of relatively simple techniques and minimal amounts of excipients aside from stabilizers and co-formers. The flexibility of these crystalline formulations with regards to routes of administration and ability to target neoplastic tissue makes them ideal strategies for effectiveness of cancer treatments. In this review, we describe the use of crystalline formulations for the treatment of various neoplastic diseases. In addition, this review attempts to highlight the gaps in the current translation of these potential treatments into authorized medicines for use in clinical practice.
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5
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Middha E, Chen C, Manghnani PN, Wang S, Zhen S, Zhao Z, Liu B. Synthesis of Uniform Polymer Encapsulated Organic Nanocrystals through Ouzo Nanocrystallization. SMALL METHODS 2022; 6:e2100808. [PMID: 35041272 DOI: 10.1002/smtd.202100808] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/16/2021] [Indexed: 06/14/2023]
Abstract
Nanocrystals (NCs) are widely used in optoelectronics, photocatalysis, and bioimaging. As the surface area to volume ratio increases with a decrease in the size of NCs, strategies to control the size of NCs are highly valuable for many applications. Given the importance of photoluminescent dyes, especially those with aggregation-induced emission, the transformation from an amorphous to a crystalline state can yield a drastic enhancement in their optical properties, which is of significance for biomedical applications. Till now, there is no general method available for the synthesis of small NCs with accurate control over the size and uniformity. Herein, a simple and general approach of ouzo nanocrystallization is presented for the synthesis of small (<100 nm) and highly uniform (polydispersity index~0.1) NCs with good control over the size. The process of nanoprecipitation is used to synthesize uniform nanoparticles (NPs) with different size, which is followed by solvent addition to form swollen NPs. Further, the amorphous core of swollen NPs is converted into NCs within polymer shell under Ouzo zone, which restricts NCs to grow above certain size. To demonstrate the general applicability of ouzo nanocrystallization, two different classes of luminescent materials are used as examples to fabricate small and highly uniform NCs.
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Affiliation(s)
- Eshu Middha
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Chengjian Chen
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Purnima Naresh Manghnani
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Shaowei Wang
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Shijie Zhen
- Center for Aggregation-Induced Emission, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Zujin Zhao
- Center for Aggregation-Induced Emission, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117585, Singapore
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6
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Li W, Wang D, Yang Z, Zhang H, Hu L, Chen G. DeepNCI: DFT Noncovalent Interaction Correction with Transferable Multimodal Three-Dimensional Convolutional Neural Networks. J Chem Inf Model 2021; 62:5090-5099. [PMID: 34958566 DOI: 10.1021/acs.jcim.1c01305] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A multimodal deep learning model, DeepNCI, is proposed for improving noncovalent interactions (NCIs) calculated via density functional theory (DFT). DeepNCI is composed of a three-dimensional convolutional neural network (3D CNN) for abstracting critical and comprehensive features from 3D electron density, and a neural network for modeling one-dimensional quantum chemical properties. By merging features from two networks, DeepNCI is able to reduce the root-mean-square error of DFT-calculated NCI from 1.19 kcal/mol to ∼0.2 kcal/mol for a NCI molecular database (>1000 molecules). The representativeness of the joint features can be visualized by t-distributed stochastic neighbor embedding (t-SNE), where they can distinguish categorized NCI systems quite well. Therefore, the fused model performs better than its component networks. In addition, the 3D CNN takes electron density as inputs that are in the same range, despite the size of molecular systems, so it can promote model applicability and transferability. To clarify the applicability of DeepNCI, an application domain (AD) has been defined with merged features using the K-nearest-neighbor method. The calculations for external test sets are shown that AD can properly monitor the reliability for a prediction. The model transferability is tested with a small database of homolysis bond dissociation energy including only dozens of samples. With NCI database pretrained parameters, the same or better performance than the reported results is achieved by transfer learning. This suggests that the DeepNCI model is transferable and it may transfer to other relative tasks, which possibly can resolve some small sampling problems. The source code of DeepNCI can be freely accessed at https://github.com/wenzelee/DeepNCI.
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Affiliation(s)
- Wenze Li
- School of Information Science and Technology, Northeast Normal University, Changchun, 130117, China
| | - Donghan Wang
- School of Information Science and Technology, Northeast Normal University, Changchun, 130117, China
| | - Zirui Yang
- School of Information Science and Technology, Northeast Normal University, Changchun, 130117, China
| | - Huijie Zhang
- School of Information Science and Technology, Northeast Normal University, Changchun, 130117, China
| | - LiHong Hu
- School of Information Science and Technology, Northeast Normal University, Changchun, 130117, China
| | - GuanHua Chen
- Department of Chemistry, The University of Hong Kong, Hong Kong S.A.R., China
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7
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Muhammad N, Zhao H, Song W, Gu M, Li Q, Liu Y, Li C, Wang J, Zhan H. Silver nanoparticles functionalized Paclitaxel nanocrystals enhance overall anti-cancer effect on human cancer cells. NANOTECHNOLOGY 2021; 32:085105. [PMID: 33197899 DOI: 10.1088/1361-6528/abcacb] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
For chemotherapeutic drugs, precise tumor-targeting and high anti-cancer efficiency is equally important in order to enhance chemotherapy and reverse drug resistance. The combination of multifunctional agents to achieve synergy should be a promising strategy. In our study, we have successfully developed novel multifunctionalized drug nanocrystals to realize co-delivery of the organic drug Paclitaxel (PTX), inorganic silver nanoparticles (AgNPs) and a tumor targeting agent. To be specific, PTX nanocrystals were first prepared as a template, then coated with polydopamine (PDA). The PDA layer was utilized as the connection bridge to produce and deposit AgNPs in situ, and provide sites for tumor-targeting peptide NR1 (RGDARF) grafting. As a result, these NR1/AgNP-decorated drug nanocrystals exhibited dramatically improved cellular uptake efficiency, in vitro anti-cancer activity and an anti-migratory effect against a variety of cancer cells, which was attributable to the synergistic, or at least additive, effect of the AgNPs and PTX, enhanced cellular uptake efficiency through NR1-receptor interaction, pH-responsive drug release and the nanoscaled nature. In particular, high anti-cancer activity and low side effects from these NR1/AgNP-decorated PTX nanocrystals were well balanced in terms of good selectivity and biocompatibility. Moreover, these novel drug nanocrystals displayed strong apoptotic-inducing potency, resulting in cell membrane lysis, nuclear damage, mitochondria dysfunction, excessive ROS release and double-stranded DNA breakage. The potential acting mechanism and molecular basis of these novel drug nanocrystals is relevant to the regulation of mitochondria-mediated apoptosis with a greater Bax-to-Bcl-2 ratio and the activation of pro-apoptotic P53 and caspase 3.
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Affiliation(s)
- Nazim Muhammad
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
| | - He Zhao
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
| | - Wenjing Song
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
| | - Mingyang Gu
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
| | - Qian Li
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
| | - Yujia Liu
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
| | - Cheng Li
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
| | - Jihui Wang
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, 523808, Guangzhou Province, People's Republic of China
| | - Honglei Zhan
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
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8
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Wang J, Muhammad N, Li T, Wang H, Liu Y, Liu B, Zhan H. Hyaluronic Acid-Coated Camptothecin Nanocrystals for Targeted Drug Delivery to Enhance Anticancer Efficacy. Mol Pharm 2020; 17:2411-2425. [PMID: 32437163 DOI: 10.1021/acs.molpharmaceut.0c00161] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Tumor-targeted drug delivery via chemotherapy is very effective on cancer treatment. For potential anticancer agent such as Camptothecin (CPT), high chemotherapeutic efficacy and accurate tumor targeting are equally crucial. Inspired by special CD44 binding capability from hyaluronic acid (HA), in this study, novel HA-coated CPT nanocrystals were successfully prepared by an antisolvent precipitation method for tumor-targeted delivery of hydrophobic drug CPT. These HA-coated CPT nanocrystals demonstrated high drug loading efficiency, improved aqueous dispersion, prolonged circulation, and enhanced stability resulting from their nanoscaled sizes and hydrophilic HA layer. Moreover, as compared to crude CPT and naked CPT nanocrystals, HA-coated CPT nanocrystals displayed dramatically enhanced in vitro anticancer activity, apoptosis-inducing potency against CD44 overexpressed cancer cells, and lower toxic effect toward normal cells due to pH-responsive drug release behavior and specific HA-CD44 mediated endocytosis. Additionally, HA-coated CPT nanocrystals performed fairly better antimigration activity and biocompatibility. The possible molecular mechanism regarding this novel drug formulation might be linked to intrinsic mitochondria-mediated apoptosis by an increase of Bax to Bcl-2 ratio and upregulation of P53. Consequently, HA-coated CPT nanocrystals are expected to be an effective nanoplatform in drug delivery for cancer therapy.
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Affiliation(s)
- Jihui Wang
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian 116034, Liaoning Province, P. R. China.,School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, Guangzhou Province, P. R. China
| | - Nazim Muhammad
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian 116034, Liaoning Province, P. R. China
| | - Tongtong Li
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian 116034, Liaoning Province, P. R. China
| | - Han Wang
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian 116034, Liaoning Province, P. R. China
| | - Yujia Liu
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian 116034, Liaoning Province, P. R. China
| | - Bingnan Liu
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian 116034, Liaoning Province, P. R. China
| | - Honglei Zhan
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian 116034, Liaoning Province, P. R. China
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9
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Zhan H, Zhao H, Muhammad N, Li T, Liu Y, Wang J. Lytic peptide-grafted beta-cyclodextrin polymer based nano-scaled drug delivery system with enhanced camptothecin anti-cancer efficacy. NANOTECHNOLOGY 2020; 31:075101. [PMID: 31665708 DOI: 10.1088/1361-6528/ab529b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The aqueous solubility of drug molecules is closely related to its bioactivity like bioavailability and subsequent therapeutic index, especially in the case of hydrophobic drugs like camptothecin (CPT), a potential broad-spectrum anti-cancer agent. Enhanced anti-cancer activity and selectivity of CPT are equally important. Inspired by host-guest effect and drug combination regimen, we developed a novel tumor lytic peptide incorporated drug delivery system by forming beta-cyclodextrin polymer (BCDp) based inclusion complex in nano-scaled size. In this study, BCDp formed inclusion complex with CPT and then a lytic-type peptide (ZH) was grafted. The resulting combinational formulation of BCDp, CPT and ZH, named as ZH-BCDp-CPT inclusion complex, demonstrated greater solubility resulting from its nano-scaled size, amorphous solid state and inclusion structure. Moreover, ZH facilitated quick internalization of conjugated drug via cell membrane lysis, leading to efficient intracellular drug delivery. This novel drug formulation was featured with prolonged circulation, enhanced anti-cancer efficacy, selectivity, anti-cell migration activity and better biocompatibility in comparison with crude CPT and binary BCDp-CPT inclusion complex, all of which were attributed to a cooperative action between ZH and BCDp-CPT inclusion complex. Our results suggested ZH-BCDp-CPT inclusion complex induced cell apoptosis by up-regulation of Bax and P53 and down-regulation of Bcl-2, primarily involved in the mitochondrial pathways.
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Affiliation(s)
- Honglei Zhan
- Department of Biotechnology, School of Bioengineering, Dalian Polytechnic University, Dalian, 116034, Liaoning Province, People's Republic of China
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10
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Dang QD, Park JH, Bhang SH, Kim JH. Synthesis and characterization of novel multi-hydroxy polyaspartamide derivative and its crosslinked hydrogels. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2019.104455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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11
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Carrier-free core–shell nanodrugs for synergistic two-photon photodynamic therapy of cervical cancer. J Colloid Interface Sci 2019; 535:84-91. [DOI: 10.1016/j.jcis.2018.09.095] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/23/2018] [Accepted: 09/26/2018] [Indexed: 01/09/2023]
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12
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Nanocrystals of Poorly Soluble Drugs: Drug Bioavailability and Physicochemical Stability. Pharmaceutics 2018; 10:pharmaceutics10030134. [PMID: 30134537 PMCID: PMC6161002 DOI: 10.3390/pharmaceutics10030134] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/13/2018] [Accepted: 08/18/2018] [Indexed: 11/16/2022] Open
Abstract
Many approaches have been developed over time to overcome the bioavailability limitations of poorly soluble drugs. With the advances in nanotechnology in recent decades, science and industry have been approaching this issue through the formulation of drugs as nanocrystals, which consist of “pure drugs and a minimum of surface active agents required for stabilization”. They are defined as “carrier-free submicron colloidal drug delivery systems with a mean particle size in the nanometer range, typically between 10–800 nm”. The primary importance of these nanoparticles was the reduction of particle size to nanoscale dimensions, with an increase in the particle surface area in contact with the dissolution medium, and thus in bioavailability. This approach has been proven successful, as demonstrated by the number of such drug products on the market. Nonetheless, despite the definition that indicates nanocrystals as a “carrier-free” system, surface active agents are necessary to prevent colloidal particles aggregation and thus improve stability. In addition, in more recent years, nanocrystal properties and technologies have attracted the interest of researchers as a means to obtain colloidal particles with modified biological properties, and thus their interest is now also addressed to modify the drug delivery and targeting. The present work provides an overview of the achievements in improving the bioavailability of poorly soluble drugs according to their administration route, describes the methods developed to overcome physicochemical and stability-related problems, and in particular reviews different stabilizers and surface agents that are able to modify the drug delivery and targeting.
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13
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Preparation and anticancer activity evaluation of an amorphous drug nanocomposite by simple heat treatment. Anticancer Drugs 2017; 28:623-633. [DOI: 10.1097/cad.0000000000000503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Chen TP, Liu T, Su TL, Liang J. Self-Polymerization of Dopamine in Acidic Environments without Oxygen. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5863-5871. [PMID: 28505456 DOI: 10.1021/acs.langmuir.7b01127] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
An alkaline environment and the presence of oxygen are essential requirements for dopamine polymerization. In this study, we are the first to demonstrate the self-polymerization of dopamine through plasma-activated water (PAW) under acidic environments (pH < 5.5). Resulting poly(dopamine) (PDA) was characterized using Nanosizer, SEM, FTIR, UV-vis, 1H NMR, and fluorescence spectrophotometers and proved to have similar physical and chemical properties to those polymerized under a basic condition, except that the PDA particles formed in PAW were more stable and hardly aggregated at varied pHs. The PAW polymerization method avoids alkaline solutions and the presence of oxygen and thus extends the applications of dopamine polymerization, particularly in biomedical and pharmaceutical sciences.
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Affiliation(s)
- Tung-Po Chen
- Department of Civil, Environmental and Ocean Engineering, Charles V. Schaefer School of Egnieering and Science, and ‡Department of Chemistry, Chemical Biology, and Biomedical Engineering, Charles V. Schaefer School of Egnieering and Science, Stevens Institute of Technology , Hoboken, New Jersey 07307, United States
| | - Tianchi Liu
- Department of Civil, Environmental and Ocean Engineering, Charles V. Schaefer School of Egnieering and Science, and ‡Department of Chemistry, Chemical Biology, and Biomedical Engineering, Charles V. Schaefer School of Egnieering and Science, Stevens Institute of Technology , Hoboken, New Jersey 07307, United States
| | - Tsan-Liang Su
- Department of Civil, Environmental and Ocean Engineering, Charles V. Schaefer School of Egnieering and Science, and ‡Department of Chemistry, Chemical Biology, and Biomedical Engineering, Charles V. Schaefer School of Egnieering and Science, Stevens Institute of Technology , Hoboken, New Jersey 07307, United States
| | - Junfeng Liang
- Department of Civil, Environmental and Ocean Engineering, Charles V. Schaefer School of Egnieering and Science, and ‡Department of Chemistry, Chemical Biology, and Biomedical Engineering, Charles V. Schaefer School of Egnieering and Science, Stevens Institute of Technology , Hoboken, New Jersey 07307, United States
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15
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Zhan H, Zhou X, Cao Y, Jagtiani T, Chang TL, Liang JF. Anti-cancer activity of camptothecin nanocrystals decorated by silver nanoparticles. J Mater Chem B 2017; 5:2692-2701. [DOI: 10.1039/c7tb00134g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
CPT/Ag nanocrystals display extreme and broad-spectrum anti-cancer activity and high selectivity through a cooperation effect between CPT and AgNPs.
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Affiliation(s)
- Honglei Zhan
- Department of Biomedical Engineering, Chemistry, and Biological Sciences
- Charles V. Schaefer School of Engineering and Sciences
- Stevens Institute of Technology
- Hoboken
- USA
| | - Xiaqing Zhou
- Department of Biomedical Engineering, Chemistry, and Biological Sciences
- Charles V. Schaefer School of Engineering and Sciences
- Stevens Institute of Technology
- Hoboken
- USA
| | - Yang Cao
- Department of Biomedical Engineering, Chemistry, and Biological Sciences
- Charles V. Schaefer School of Engineering and Sciences
- Stevens Institute of Technology
- Hoboken
- USA
| | - Tina Jagtiani
- Department of Biomedical Engineering, Chemistry, and Biological Sciences
- Charles V. Schaefer School of Engineering and Sciences
- Stevens Institute of Technology
- Hoboken
- USA
| | - Tzu-Lan Chang
- Department of Biomedical Engineering, Chemistry, and Biological Sciences
- Charles V. Schaefer School of Engineering and Sciences
- Stevens Institute of Technology
- Hoboken
- USA
| | - Jun F. Liang
- Department of Biomedical Engineering, Chemistry, and Biological Sciences
- Charles V. Schaefer School of Engineering and Sciences
- Stevens Institute of Technology
- Hoboken
- USA
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