1
|
Liu L, Liu YX, Zhong H, Li XR, Jun YL, Wang QL, Ding LS, Cheng ZP, Qian HY. Folic acid conjugated palygorskite/Au hybrid microgels: Temperature, pH and light triple-responsive and its application in drug delivery. Colloids Surf B Biointerfaces 2023; 229:113432. [PMID: 37422992 DOI: 10.1016/j.colsurfb.2023.113432] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/21/2023] [Accepted: 06/27/2023] [Indexed: 07/11/2023]
Abstract
Herein, folic acid conjugated poly (NIPAM-co-functional palygorskite-Au-co-acrylic acid) (FA-PNFA) hybrid microgels were fabricated by emulsion polymerization. The introduction of acrylic acid can increase the low critical solution temperature (LCST) of FA-PNFA from 36 °C at pH 5.5-42 °C at pH 7.4. Doxorubicin hydrochloride (DOX) was chosen as the load drug, the results show that the DOX release behavior is driven by temperature, pH and light. Cumulative drug release rate can reach 74 % at 37 °C and pH 5.5 while only 20 % at 37 °C and pH 7.4, which effectively avoided the early leakage of the drug. In addition, by exposing FA-PNFA hybrid microgels to laser irradiation, the cumulative release rate was increased by 5 % compared to the release rate under dark conditions. Functional palygorskite-Au as physical crosslinkers not only improves the drug loading content of microgels but also promotes the release of DOX through light drive. Methyl thiazolyl tetrazolium bromide (MTT) assay demonstrated that the FA-PNFA are nontoxic up to 200 μg mL-1 towards 4T1 breast cancer cell. Meanwhile, DOX-loaded FA-PNFA show more significant cytotoxicity than the free DOX. Confocal laser scanning microscope (CLSM) revealed that the DOX-loaded FA-PNFA could be efficiently taken by 4T1 breast cancer cells. FA-PNFA hybrid microgels not only improve the LCST of PNIPAM, but also endow the microgels with photostimulation responsiveness, which can release drugs in response to the triple stimulation response of temperature, pH and light, thus effectively reducing the activity of cancer cells, making them more promising for wider medical applications.
Collapse
Affiliation(s)
- Lei Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China; Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, PR China
| | - Yi-Xin Liu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, PR China
| | - Hui Zhong
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China; Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, PR China.
| | - Xiao-Rong Li
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China.
| | - Ya-Li Jun
- Department of Central Laboratory, The Affiliated Huaian No.1 Peopele's Hospital, Nanjing Medical University, Huai'an 223300, PR China
| | - Qi-Long Wang
- Department of Central Laboratory, The Affiliated Huaian No.1 Peopele's Hospital, Nanjing Medical University, Huai'an 223300, PR China
| | - Lian-Shu Ding
- Department of Central Laboratory, The Affiliated Huaian No.1 Peopele's Hospital, Nanjing Medical University, Huai'an 223300, PR China
| | - Zhi-Peng Cheng
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China
| | - Hai-Yan Qian
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China.
| |
Collapse
|
2
|
Kumar B, Smita K, Angulo Y, Debut A, Cumbal L. Honeybee pollen assisted biosynthesis of nanogold and its application as catalyst in reduction of 4-nitrophenol. Heliyon 2022; 8:e10191. [PMID: 36033283 PMCID: PMC9404344 DOI: 10.1016/j.heliyon.2022.e10191] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/04/2022] [Accepted: 08/01/2022] [Indexed: 10/26/2022] Open
Abstract
Nowadays, the exploration of natural materials for the production of nanoparticles is of special interest due to its ecofriendly nature. In this paper, we presented the biosynthesis of gold nanoparticles (AuNPs) in a green route by using water extract of pollen from Andean honeybees. Furthermore, AuNPs have been characterized by various techniques and tested for the catalytic reduction of 4-nitrophenol (4-NP). The biosynthesized AuNPs were analyzed using UV-vis spectroscopy, Transmission electron microscopy (TEM), Dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) spectroscopy to confirm their optical properties, stability, surface morphology, and purity. The synthesized AuNPs proved to be well dispersed, spherical, and triangular in shape, with particle sizes ranging from 7 to 42 nm having λmax at 530 nm. Moreover, FTIR suggests the capping of AuNPs with pollen constituents and XRD confirms the crystalline structure of AuNPs. Additionally, prepared AuNPs were demonstrated to be effective in reducing organic pollutant 4-NP to 4-aminophenol (k = 59.17898 × 10-3 min-1, R2 = 0.994). All of these studies have emphasized that AuNPs production can be scale up by using naturally available pollen grains and open up a new perspective for beekeepers.
Collapse
Affiliation(s)
- Brajesh Kumar
- Department of Chemistry, TATA College, Kolhan University, Chaibasa, 833202, Jharkhand, India.,Centro de Nanociencia y Nanotecnologia (CENCINAT), Universidad de Las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui S/n, Sangolqui, P.O. BOX 171-5-231B, Ecuador
| | - Kumari Smita
- Centro de Nanociencia y Nanotecnologia (CENCINAT), Universidad de Las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui S/n, Sangolqui, P.O. BOX 171-5-231B, Ecuador
| | - Yolanda Angulo
- Centro de Nanociencia y Nanotecnologia (CENCINAT), Universidad de Las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui S/n, Sangolqui, P.O. BOX 171-5-231B, Ecuador
| | - Alexis Debut
- Centro de Nanociencia y Nanotecnologia (CENCINAT), Universidad de Las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui S/n, Sangolqui, P.O. BOX 171-5-231B, Ecuador
| | - Luis Cumbal
- Centro de Nanociencia y Nanotecnologia (CENCINAT), Universidad de Las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui S/n, Sangolqui, P.O. BOX 171-5-231B, Ecuador
| |
Collapse
|
3
|
Ultrasound-assisted green synthesis of Urchin like palladium oxide nanoparticles using alginate and its photocatalytic application. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|