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Mishra S, Shelar SB, Barick KC, Hassan PA, Agarwal N. Near infra-red absorbing Quinolizidine fused curcuminoid-BF 2 chelate and its applications in photodynamic therapy using MCF-7 and A549 cells. Photodiagnosis Photodyn Ther 2024; 45:103951. [PMID: 38161036 DOI: 10.1016/j.pdpdt.2023.103951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/19/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
Metal-free near-infrared absorbing photosensitizers (PS) have been considered promising candidates for photodynamic therapy. Curcumin, curcuminoid, and its derivatives have therapeutic values due to their anti-inflammatory, antifungal, and antiproliferative properties. Curcuminoid-BF2 chelates have also been studied as cell imaging probes, however, their applications in photodynamic therapy are rare. In this article, we describe the synthesis and therapeutic evaluation of quinolizidine fused curcuminoid-BF2 chelate (Quinolizidine CUR-BF2) containing an acid-sensitive group. This donor-acceptor-donor curcuminoid-BF2 derivative exhibits absorption and emission in the deep red region with an absorption band maximum of ∼647 nm and a weak emission band at approximately 713 nm. It is interesting to note that this derivative has a high molar extinction coefficient (164,655 M-1cm-1). Quinolizidine CUR-BF2 possesses intramolecular charge transfer properties, facilitating the production of singlet oxygen (1O2), which plays a crucial role in cell death. Additionally, Quinolizidine CUR-BF2 can enable the selective release of active ingredients in an acidic medium (pH 5). Furthermore, the nanoaggregates of PS were prepared by encapsulating Quinolizidine CUR-BF2 within Pluronic F127 block co-polymer for better water-dispersibility and enhanced cellular uptake. Dark cytotoxicity of nanoaggregates was found to be negligible, whereas they exhibited significant photoinduced cytotoxicity towards cancer cells (MCF-7 and A549) under irradiation of 635 nm light. Further, the cell death pathway using Quinolizidine CUR-BF2 nanoaggregates as PS is found to occur through apoptosis. Specifically, the present study deals with the successful preparation of Quinolizidine CUR-BF2 nanoaggregates for enhanced water-dispersibility and cellular uptake as well as the efficacy evaluation of developed nanoaggregates for photodynamic therapy.
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Affiliation(s)
- Sneha Mishra
- School of Chemical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina campus, Santacruz (E), Mumbai 400098, India
| | - Sandeep B Shelar
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - K C Barick
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
| | - P A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Neeraj Agarwal
- School of Chemical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina campus, Santacruz (E), Mumbai 400098, India.
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Rawool SA, Pai MR, Banerjee AM, Nath S, Bapat RD, Sharma RK, Jagannath, Dutta B, Hassan PA, Tripathi AK. Superior Interfacial Contact Yields Efficient Electron Transfer Rate and Enhanced Solar Photocatalytic Hydrogen Generation in M/C 3N 4 Schottky Junctions. ACS Appl Mater Interfaces 2023; 15:39926-39945. [PMID: 37556210 DOI: 10.1021/acsami.3c05833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Various literature studies (Table 6) have reported that dispersion of metal nanoparticles (NPs) on graphitic carbon nitride g-C3N4 (M/CN) has considerably improved the photocatalytic hydrogen yield. It is understood that metal NPs create active sites on the surface of CN and act as a cocatalyst. However, the precise changes induced by different metal NPs on the surface of CN still elude us. Here, we report a thorough understanding and comparison of the morphology, metal-support interactions, interfacial charge transfer kinetics, and band characteristics in different M/CN (M = Pt, Pd, Au, Ag, Cu) correlated with photocatalytic activity. Among all metals, Pt/CN was found to be the best performer both under sunlight and UV-visible irradiation. Under sunlight, maximum H2@ 2.7 mmol/h/g was observed over Pt/CN followed by Pd/CN > Au/CN > Ag/CN > Cu/CN ≈ CN. The present study revealed that among all metals, Pt formed superior interfacial contact with g-C3N4 as compared to other metals. The maximum Schottky barrier height (Φb,Pt) of 0.66 V was observed at Pt/CN followed by Φb,Au/CN (0.46 V) and Φb,Pd/CN (0.05 V). The presence of electron-deficient Pt in Pt-XPS, decrease in the intensity of d-DOS of Pt near the Fermi level in VB-XPS, increase in CB tail states, and cathodic shift in Vfb in MS plots sufficiently confirmed strong metal-support interactions in Pt/CN. Due to the SPR effect, Au and Ag NPs suffered from agglomeration and poor dispersion during photodeposition. Finely dispersed Pt NPs (2-4 nm, 53% dispersion) successfully competed with shallow/deep trap states and drove the photogenerated electrons to active metallic sites in a drastically reduced time period as investigated by femtosecond transient absorption spectroscopy. Typically, an interfacial electron transfer rate, KIET,avg, of 2.5 × 1010 s-1 was observed for Pt/CN, while 0.087 × 1010 s-1 was observed in Au/CN. Band alignment/potentials at M/CN Schottky junctions were derived and most favorable in Pt/CN with CB tail states much above the water reduction potential; however, in the case of Pd, these extend much below the H+/H2 potential and hence behave like deep trap states. Thus, in Pd/CN (τ0 = 4200 ps, 49%) and Ag/CN (3870 ps, 53%), electron deep trapping dominates over charge transfer to active sites. The present study will help in designing futuristic new cocatalyst-photocatalyst systems.
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Affiliation(s)
- Sushma A Rawool
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, Maharashtra India
| | - Mrinal R Pai
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, Maharashtra India
| | - A M Banerjee
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, Maharashtra India
| | - S Nath
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, Maharashtra India
| | - R D Bapat
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, Maharashtra India
| | - R K Sharma
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra, India
| | - Jagannath
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra, India
| | - B Dutta
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra India
| | - P A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, Maharashtra India
| | - A K Tripathi
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, Maharashtra India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, Maharashtra India
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Kaur S, Balakrishnan B, Mallia MB, Keshari R, Hassan PA, Banerjee R. Technetium-99m labeled core shell hyaluronate nanoparticles as tumor responsive, metastatic skeletal lesion targeted combinatorial theranostics. Carbohydr Polym 2023; 312:120840. [PMID: 37059565 DOI: 10.1016/j.carbpol.2023.120840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 04/07/2023]
Abstract
Achieving target specific delivery of chemotherapeutics in metastatic skeletal lesions remains a major challenge. Towards this, a dual drug loaded, radiolabeled multi-trigger responsive nanoparticles having partially oxidized hyaluronate (HADA) conjugated to alendronate shell and palmitic acid core were developed. While the hydrophobic drug, celecoxib was encapsulated in the palmitic acid core, the hydrophilic drug, doxorubicin hydrochloride was linked to the shell via a pH responsive imine linkage. Hydroxyapatite binding studies showed affinity of alendronate conjugated HADA nanoparticles to bones. Enhanced cellular uptake of the nanoparticles was achieved via HADA-CD44 receptor binding. HADA nanoparticles demonstrated trigger responsive release of encapsulated drugs in the presence of hyaluronidase, pH and glucose, present in excess in the tumor microenvironment. Efficacy of the nanoparticles for combination chemotherapy was established by >10-fold reduction in IC50 of drug loaded particles with a combination index of 0.453, as compared to free drugs in MDA-MB-231 cells. The nanoparticles could be radiolabeled with the gamma emitting radioisotope technetium-99m (99mTc) through a simple, 'chelator free', procedure with excellent radiochemical purity (RCP) (>90 %) and in vitro stability. 99mTc-labeled drug loaded nanoparticles reported herein constitutes a promising theranostic agent to target metastatic bone lesions. STATEMENT OF HYPOTHESES: Technetium-99m labeled, alendronate conjugated, dual targeting, tumor responsive, hyaluronate nanoparticle for tumor specific drug release and enhanced therapeutic effect, with real-time in vivo monitoring.
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Affiliation(s)
- Shahdeep Kaur
- Nanomedicine Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology, Bombay, Mumbai 400076, India
| | - Biji Balakrishnan
- Nanomedicine Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology, Bombay, Mumbai 400076, India; Nanotherapeutics & Biosensor Section, Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Madhava B Mallia
- Radiopharmaceutical Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Mumbai 400094, India
| | - Roshan Keshari
- Nanomedicine Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology, Bombay, Mumbai 400076, India
| | - P A Hassan
- Nanotherapeutics & Biosensor Section, Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Mumbai 400094, India
| | - Rinti Banerjee
- Nanomedicine Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology, Bombay, Mumbai 400076, India
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Gupta J, Hassan PA, Barick KC. Multifunctional ZnO nanostructures: a next generation nanomedicine for cancer therapy, targeted drug delivery, bioimaging, and tissue regeneration. Nanotechnology 2023; 34. [PMID: 37044078 DOI: 10.1088/1361-6528/accc35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 04/12/2023] [Indexed: 05/03/2023]
Abstract
Zinc oxide nanostructures (ZnO NSs) are one of the most versatile and promising metal oxides having significant importance in biomedical fields, especially for therapeutic and diagnostic purposes. ZnO possesses unique physio-chemical and biological properties such as photo-chemical stability, corrosion resistance, mechanical properties, biocompatibility, higher targeting capability, and ROS-triggered cytotoxicity. These ZnO NSs have enhanced potential for various biomedical applications such as cancer therapy, drug delivery, bioimaging, tissue engineering, etc. Furthermore, ZnO possesses excellent luminescent properties that make it useful for bioimaging and image-guided targeted drug delivery, thereby reducing the unwanted side effects of chemotherapeutic agents. Besides, these characteristics, enhanced permeability and retention effect, electrostatic interaction, ROS production, and pH-dependent dissolution of ZnO also make it potential aspirant as therapeutic that are suggested as key parameters for cytotoxic and cell death mechanismsviaapoptosis, autophagy, and mitophagy mechanisms. Here, the recent progress and advances of ZnO NSs in bioimaging, drug delivery, and tissue engineering are discussed along with the advantages, limitations, and future advancement for biological applications.
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Affiliation(s)
- Jagriti Gupta
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India
| | - P A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400 094, India
| | - K C Barick
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400 094, India
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Kaur G, Garg P, Kaur N, Mittal M, Chaudhary GR, Gawali SL, Hassan PA. Assessment of structural integrity of lysozyme in the presence of newly formed uni/multivesicular metallosomes. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Barick KC, Tripathi A, Dutta B, Shelar SB, Hassan PA. Curcumin Encapsulated Casein Nanoparticles: Enhanced Bioavailability and Anticancer Efficacy. J Pharm Sci 2020; 110:2114-2120. [PMID: 33338492 DOI: 10.1016/j.xphs.2020.12.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/07/2020] [Accepted: 12/07/2020] [Indexed: 12/18/2022]
Abstract
The poor water solubility and bioactivity of drugs can be potentially improved by using suitable nanocarriers. Herein, an economically viable methodology is developed for encapsulation of hydrophobic anticancer agent, curcumin in casein nanoparticles (CasNPs). The successful encapsulation of curcumin was evident from the structural, thermal and spectroscopic analysis of curcumin encapsulated CasNPs (Cur-CasNPs). The CasNPs and Cur-CasNPs samples were lyophilized for their long-term stability and lyophilized powders are found to be stable for more than 6 months at 4-8 °C. From DLS studies, it has been observed that the variation in average size of drug formulations before and after reconstitution were less than 5%. Further, it shows good water-dispersibility, enhanced bioavailability and pH dependent charge conversal feature. Cur-CasNPs showed pH dependent release characteristics with higher at mild acidic environment and enhanced toxicity towards cancer cells (MCF-7) as compared to normal cells (CHO). Moreover, the CasNPs are non-toxic in nature and the developed nanoformulation of drug exhibits substantial cellular internalization and enhanced toxicity towards MCF-7 cells over pure drug, indicating their potential applications.
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Affiliation(s)
- K C Barick
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094.
| | - Avanika Tripathi
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085; Department of Pharmacy, Banasthali Vidyapith, Rajasthan, 304 022
| | - Bijaideep Dutta
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094
| | - Sandeep B Shelar
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085
| | - P A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094.
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Gawali SL, Shelar SB, Gupta J, Barick KC, Hassan PA. Immobilization of protein on Fe 3O 4 nanoparticles for magnetic hyperthermia application. Int J Biol Macromol 2020; 166:851-860. [PMID: 33161076 DOI: 10.1016/j.ijbiomac.2020.10.241] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/02/2020] [Accepted: 10/30/2020] [Indexed: 12/11/2022]
Abstract
We report a facile approach for the preparation of protein conjugated glutaric acid functionalized Fe3O4 magnetic nanoparticles (Pro-Glu-MNPs), having improved colloidal stability and heating efficacy. The Pro-Glu-MNPs were prepared by covalent conjugation of BSA protein onto the surface of glutaric acid functionalized Fe3O4 magnetic nanoparticles (Glu-MNPs) obtained through thermal decomposition. XRD and TEM analyses confirmed the formation of crystalline Fe3O4 nanoparticles of average size ~5 nm, whereas the conjugation of BSA protein to them was evident from XPS, FTIR, TGA, DLS and zeta-potential measurements. These Pro-Glu-MNPs showed good colloidal stability in different media (water, phosphate buffer saline, cell culture medium) and exhibited room temperature superparamagnetism with good magnetic field responsivity towards the external magnet. The induction heating studies revealed that the heating efficacy of these Pro-Glu-MNPs was strongly reliant on the particle concentration and their stabilizing media. In addition, they showed enhanced heating efficacy over Glu-MNPs as surface passivation by protein offers colloidal stability to them as well as prevents their aggregation under AC magnetic field. Further, Pro-Glu-MNPs are biocompatible towards normal cells and showed substantial cellular internalization in cancerous cells, suggesting their potential application in hyperthermia therapy.
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Affiliation(s)
- Santosh L Gawali
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Sandeep B Shelar
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Jagriti Gupta
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - K C Barick
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
| | - P A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
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Sharma B, Kaur G, Chaudhary GR, Gawali SL, Hassan PA. High antimicrobial photodynamic activity of photosensitizer encapsulated dual-functional metallocatanionic vesicles against drug-resistant bacteria S. aureus. Biomater Sci 2020; 8:2905-2920. [PMID: 32307486 DOI: 10.1039/d0bm00323a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Developments in the field of photodynamic therapy (PDT) are being made by investigating appropriate photosensitizers (PSs) and enhancing the penetration effect of light by developing new nano-carriers. So, to boost the PDT effect, in the present work, new metallocatanionic vesicles were fabricated by a convenient, efficient, green and inexpensive method to encapsulate PSs and evaluate their antimicrobial PDT against the drug-resistant bacterium Staphylococcus aureus. They were prepared from a combination of a double-chained copper-based cationic metallosurfactant (CuCPCII) and an anionic surfactant sodium bis(2-ethylhexyl)sulfosuccinate (Aerosol OT or AOT). The surface charge, structure and ability to encapsulate oppositely charged photosensitizers are some crucial factors that need to be controlled for their effective utilization in PDT. In this approach, two of the fractions, one each from a cationic rich and anionic rich side, were selected to encapsulate cationic (methylene blue; MB) and anionic (rose bengal (RB)) PSs after characterization by SAXS, AFM, FESEM, DLS, and zeta-potential, and conductivity measurements. Afterwards, PDT was performed on S. aureus (a multidrug-resistant bacterium) by the colony forming unit (CFU) method using PS encapsulated metallocatanionic vesicles that demonstrated high bactericidal activity by using visible light (532 nm) and facilitated the generation of singlet oxygen. The singlet oxygen generation capability of both the PSs was enhanced under irradiation when encapsulated in metallocatanionic vesicles because the presence of metal accelerated the intersystem crossing of triplet oxygen to singlet oxygen. Furthermore, these studies reveal that the metallocatanionic vesicles have dual functionality i.e. encapsulate PSs and even show dark toxicity against S. aureus. To study the killing of S. aureus, bacterial DNA was extracted and its interactions and conformational changes in the presence of metallocatanionic vesicles were analyzed via., UV-Visible, and circular dichroism (CD) spectroscopy. Comet assay (single-cell gel-electrophoresis) demonstrated the DNA damage after PDT treatment in an individual cell. The bacterial DNA damage was more with the metallosurfactant rich 70 : 30 fraction than with the 30 : 70 fraction, in combination with RB under irradiation. This work provides a new metal hybrid smart material that possesses dual functionality and is prepared by an easy, economical and feasible procedure which resulted in enhanced PDT against a drug-resistant bacterium, thus, providing an alternative for antibacterial therapy.
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Affiliation(s)
- Bunty Sharma
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, India.
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Dutta B, Nema A, Shetake NG, Gupta J, Barick KC, Lawande MA, Pandey BN, Priyadarsini IK, Hassan PA. Glutamic acid-coated Fe 3O 4 nanoparticles for tumor-targeted imaging and therapeutics. Mater Sci Eng C Mater Biol Appl 2020; 112:110915. [PMID: 32409067 DOI: 10.1016/j.msec.2020.110915] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/14/2020] [Accepted: 03/31/2020] [Indexed: 12/21/2022]
Abstract
We have developed surface functionalised Fe3O4 magnetic nanoparticles (MNPs) based system that can be used for tumor-targeted multimodal therapies and MR imaging. Biocompatible, non-essential amino acid (glutamic acid) was introduced onto the surface of Fe3O4 MNPs to provide functional sites for binding of chemotherapeutic drugs. These glutamic acid-coated Fe3O4 MNPs (GAMNPs) exhibit good water-dispersibility, magnetic responsivity and pH dependent charge conversal feature. The magnetic core as well as organic shell of GAMNPs was characterized by XRD, TEM, DLS, FTIR, PPMS and UV-visible spectroscopy and zeta-potential analyzer etc. The broad spectrum anticancer drugs, doxorubicin hydrochloride (DOX) and methotrexate (MTX) were electrostatically and covalently conjugated to the surface of GAMNPs, respectively for combination chemotherapy. These dual drugs loaded system (DOX-MTX-GAMNPs) shows pH dependent release behaviour of both the drugs and enhanced toxicity towards breast cancer cell line (MCF-7) as compared to their individual treatment. Fluorescence microscopy and flow cytometric analyses confirmed the successful uptake of drug loaded system into MCF-7 cell lines. Further MTX being analogue of folic acid, its co-delivery with DOX would help in internalization of both the drugs into MCF-7 cells. These GAMNPs also show good heating efficiency under AC magnetic field (Intrinsic loss power, ILP = 0.95 and 0.73 and 0.48 nHm2/Kg at Fe concentration of 0.5, 1 and 2 mg/ml, respectively) and transverse relaxivity (r2 = 152 mM-1 s-1) indicating their potential capability for hyperthermia therapy and MRI tracking. Furthermore, it has been observed that the combination of chemotherapeutic drugs and hyperthermia leads to an enhancement of cytotoxicity in MCF-7 cells.
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Affiliation(s)
- Bijaideep Dutta
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Anshika Nema
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Dr. D. Y. Patil Biotechnology & Bioinformatics Institute, Tathawade, Pune 411033, India
| | - Neena G Shetake
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India; Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Jagriti Gupta
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - K C Barick
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
| | - Malini A Lawande
- Dept. of MRI, Dr. Balabhai Nanavati Hospital and Research Centre, Mumbai 400056, India
| | - B N Pandey
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India; Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | | | - P A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
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Murali MS, Gawali SL, Hassan PA, Gujar RB. Symmetrical dialkylsulphoxides in ionic liquid as extractants for uranyl ion: extraction efficacy and aggregation behavior. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06537-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kaur G, Garg P, Kaur B, Chaudhary GR, Kumar S, Dilbaghi N, Hassan PA, Aswal VK. Synthesis, thermal and surface activity of cationic single chain metal hybrid surfactants and their interaction with microbes and proteins. Soft Matter 2019; 15:2348-2358. [PMID: 30810157 DOI: 10.1039/c9sm00046a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A series of water-soluble metal functionalized surfactants have been prepared using commercially available surfactant cetyl pyridinium chloride and transition metal salts. These complexes were characterized in the solid state by elemental analysis, FTIR, 1H NMR and thermogravimetric analysis. The interfacial surface activity and aggregation behaviour of the metallosurfactants were analysed through conductivity, surface tension and small angle neutron scattering measurements. Our results show that the presence of metal ions as co-ions along with counter ions favours micellization at a low critical micellization concentration (CMC). Small angle neutron scattering revealed that the metallomicelles are of a prolate ellipsoidal shape and exhibit strong counterion binding. This article further describes the interaction of the metallosurfactants with transport protein Bovine Serum Albumin (BSA) using different spectroscopic techniques. A spectroscopic study was used to study the binding, interaction and quenching mechanism of BSA with the metallosurfactants. Gel electrophoresis (SDS-PAGE) and circular dichroism (CD) investigated the structural and conformational changes produced in BSA due to the metallosurfactants. The results indicate that there is an alteration in the secondary structure of BSA due to the electrostatic interaction between positive head groups and metal co-ions of the metallosurfactants and negatively charged amino acids of BSA. As the concentration increases, the α-helicity of BSA decreases and all the three studied metallosurfactants gave comparable results. Finally, the in vitro cytotoxicity and antimicrobial activity of the metallosurfactants were evaluated against erythrocytes and microorganisms, which showed prominent effects related to the presence of a metal ion in metallomicelles of the hybrid surfactants.
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Affiliation(s)
- Gurpreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India.
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Kaur G, Garg P, Kaur B, Chaudhary GR, Kumar S, Dilbaghi N, Hassan PA, Gawali SL. Cationic double chained metallosurfactants: synthesis, aggregation, cytotoxicity, antimicrobial activity and their impact on the structure of bovine serum albumin. Soft Matter 2018; 14:5306-5318. [PMID: 29904765 DOI: 10.1039/c8sm00535d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bovine serum albumin (BSA) is one of the most copious and significant blood proteins with dynamic structure. The understanding of the structural functionality of BSA and its interaction with metal ions is desired for various biological functions. Herein, three different metallosurfactants containing different transition metals and the same hydrophobic tail were engaged to investigate the structural transition of BSA. The metallosurfactants have been prepared by a combination of metal ions (M = Fe, Co and Ni) with cetylpyridinium chloride surfactant via the ligand insertion method and were characterized by elemental, FTIR, 1H-NMR, and thermogravimetric analysis (TGA). The obtained results reveal that insertion of a metal ion perturbs the aggregation behavior of the surfactant. Incorporation of a metal-ion has been found to decrease the CMC value of the surfactant, which has been supported by conductivity, surface tension and small angle X-ray scattering (SAXS). These metallosurfactants were employed to study the interaction and binding mechanism of BSA under physiological conditions. SDS-PAGE analysis points out a weak effect of metallosurfactants on the primary structure of BSA, whereas CD spectra implied a significant change in secondary structure with the decreased α-helical content of BSA. Fluorescence spectroscopy indicates the effect of metallosurfactants on the tertiary structure of BSA, whereas absorption spectra demonstrated static quenching with a blue shift in the presence of metallosurfactants. Moreover, unfolding of BSA in the presence of metallosurfactants has also been confirmed by SAXS studies. The overall results indicate that insertion of the metal ion into the framework of the surfactant structure enhances its protein binding/folding/unfolding abilities, which would be helpful in clinical as well as in life sciences.
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Affiliation(s)
- Gurpreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India.
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13
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Chakraborty G, Chowdhury MP, Hassan PA, Tsuchiya K, Torigoe K, Saha SK. Interaction of Tyrosine Analogues with Quaternary Ammonium Head Groups at the Micelle/Water Interface and Contrasting Effect of Molecular Folding on the Hydrophobic Outcome and End-Cap Geometry. J Phys Chem B 2018; 122:2355-2367. [DOI: 10.1021/acs.jpcb.7b11167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Gulmi Chakraborty
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, India
| | | | - P. A. Hassan
- Chemistry
Division, Bhabha Atmoic Research Centre, Trombay, Mumbai 400085, India
| | - Koji Tsuchiya
- Research
Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Kanjiro Torigoe
- Department
of Pure and Applied Chemistry, Tokyo University of Science, 2641 Yamazaki, Noda, Tokyo 278-8510, Japan
| | - Swapan K. Saha
- Department
of Chemistry, University of North Bengal, Darjeeling 734 013, India
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14
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Dutta B, Barick KC, Verma G, Aswal VK, Freilich I, Danino D, Singh BG, Priyadarsini KI, Hassan PA. PEG coated vesicles from mixtures of Pluronic P123 and l-α-phosphatidylcholine: structure, rheology and curcumin encapsulation. Phys Chem Chem Phys 2018; 19:26821-26832. [PMID: 28949348 DOI: 10.1039/c7cp05303g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PEG coated vesicles are important vehicles for the passive targeting of anticancer drugs. With a view to prepare PEG decorated vesicles using co-assembly of block copolymers and lipids, here we investigated the microstructure of aggregates formed in mixtures comprising lipids (l-α-phosphatidylcholine) and block copolymers (Pluronic P123), in the polymer rich regime. DLS and SANS studies show that the structure of the aggregates can be tuned from micelles to rod-like micelles or vesicles by changing the lipid to polymer composition. Rheological studies on gels formed by mixtures of polymer and lipid suggest incorporation of the lipid into the polymer matrix. The encapsulation efficiencies of polymer incorporated liposomes for curcumin and doxorubicin hydrochloride (DOX) are evaluated at different drug to carrier ratios. The pH dependent sustained release of both the drugs from the PEGylated liposomes suggests their application in the development of cost effective formulations for anticancer drug delivery.
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Affiliation(s)
- Bijaideep Dutta
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India.
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15
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Chat OA, Nazir N, Bhat PA, Hassan PA, Aswal VK, Dar AA. Aggregation and Rheological Behavior of the Lavender Oil-Pluronic P123 Microemulsions in Water-Ethanol Mixed Solvents. Langmuir 2018; 34:1010-1019. [PMID: 29155597 DOI: 10.1021/acs.langmuir.7b02845] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effect of lavender oil on aggregation characteristics of P123 in aqueous-ethanolic solutions is investigated systematically by DLS, SANS, and rheology. The solubilization capacity of the P123 based formulations toward Lavender oil increased by increasing P123 concentration. The study unveiled the importance of the short chain alcohol-ethanol, as solubilization enhancer. The apparent hydrodynamic radius (Rh) increased significantly with an increase in lavender oil concentration up to maximum oil solubilization capacity of the copolymer at a particular ethanol concentration. DLS measurements on 5, 10, and 15 wt% P123 in the presence of 25% ethanol revealed the presence of large-sized micellar clusters in addition to the oil swollen micelles. The core size (RC), radius of hard sphere (RHS), and aggregation number (N) obtained from SANS profiles showed considerable enhancement with the addition of lavender oil confirming penetration of oil inside the copolymer. Rheological studies showed that viscosity also increased significantly with the addition of lavender oil near the maximum loading limit of the P123 concentration. Quite interestingly, the sol-gel transition temperature displayed a strong dependence on both P123 as well as oil concentration and decreased almost linearly by increasing oil concentration. This study demonstrates the use of a biocompatible and temperature sensitive self-assembled P123 based formulation for lavender oil solubilization that can be beneficial in the cosmetic industry wherein controlled release of fragrances and so forth is demanded.
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Affiliation(s)
- Oyais Ahmad Chat
- Physical Chemistry Division. Department of Chemistry, University of Kashmir , Srinagar-190006, Jammu and Kashmir, India
- Department of Chemistry, Government Degree College Pulwama-192301, Jammu and Kashmir, India
| | - Nighat Nazir
- Department of Chemistry, Islamia College of Science and Commerce , Hawal, Srinagar-190002, Jammu and Kashmir, India
| | - Parvaiz Ahmad Bhat
- Physical Chemistry Division. Department of Chemistry, University of Kashmir , Srinagar-190006, Jammu and Kashmir, India
- Department of Chemistry, Government Degree College Pulwama-192301, Jammu and Kashmir, India
| | | | | | - Aijaz Ahmad Dar
- Physical Chemistry Division. Department of Chemistry, University of Kashmir , Srinagar-190006, Jammu and Kashmir, India
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16
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Verma G, Shetake NG, Barick KC, Pandey BN, Hassan PA, Priyadarsini KI. Covalent immobilization of doxorubicin in glycine functionalized hydroxyapatite nanoparticles for pH-responsive release. NEW J CHEM 2018. [DOI: 10.1039/c7nj04706a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Development and therapeutic evaluation of glycine functionalized hydroxyapatite nanoparticles having a covalently conjugated anticancer drug, doxorubicin hydrochloride.
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Affiliation(s)
- Gunjan Verma
- Chemistry Division, Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Neena G. Shetake
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - K. C. Barick
- Chemistry Division, Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - B. N. Pandey
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - P. A. Hassan
- Chemistry Division, Bhabha Atomic Research Centre
- Mumbai-400085
- India
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17
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Das RP, Singh BG, Kunwar A, Ramani MV, Subbaraju GV, Hassan PA, Priyadarsini KI. Tuning the binding, release and cytotoxicity of hydrophobic drug by Bovine Serum Albumin nanoparticles: Influence of particle size. Colloids Surf B Biointerfaces 2017; 158:682-688. [PMID: 28783613 DOI: 10.1016/j.colsurfb.2017.07.048] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/12/2017] [Accepted: 07/21/2017] [Indexed: 11/26/2022]
Abstract
To elucidate the effect of particle size of albumin nanoparticles on cellular uptake of a hydrophobic drug, herein we report the release kinetics and cytotoxicity of nanoparticle bound dimethylcurcumin (DMC) in A549 tumor cells. The bovine serum albumin (BSA) nanoparticles were prepared by thermal denaturation and characterized by dynamic light scattering (DLS), zeta (ζ) -potential, circular dichroism (CD) and transmission electron microscope (TEM). The preparation conditions were optimized to obtain nanoparticles with mean hydrodynamic diameters 28.0nm (BSAnp1) and 52.0nm (BSAnp2) and corresponding ζ- potential value of∼-7.0 and -6.0mV, respectively. Interaction of DMC with BSA nanoparticles was investigated by UV-vis, fluorescence and CD spectroscopy. CD studies indicated significant changes in the secondary structure of BSA upon particle formation, as revealed by decrease in the helicity. The cellular uptake of DMC increased with increase in particle size and the toxicity of DMC loaded nanoparticles to A549 cells were found to be consistent with their cellular uptake. Between the two formulations studied, BSAnp2 provided enhanced cellular uptake and can be used as an effective delivery system for hydrophobic drugs like DMC.
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Affiliation(s)
- R P Das
- Radiation & Photochemistry Division, Trombay, Mumbai, 400085, India
| | - B G Singh
- Radiation & Photochemistry Division, Trombay, Mumbai, 400085, India.
| | - A Kunwar
- Radiation & Photochemistry Division, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
| | - M V Ramani
- Natsol Laboratories Pvt. Ltd, Ramky commercial Hub, J. N. Pharmacity, Visakhapatnam, 531019, India
| | - G V Subbaraju
- Natsol Laboratories Pvt. Ltd, Ramky commercial Hub, J. N. Pharmacity, Visakhapatnam, 531019, India
| | - P A Hassan
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
| | - K I Priyadarsini
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
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18
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Barick KC, Hassan PA, Gawali S, Dutta B. Surface engineering of iron oxide nanoparticles for cancer therapy. Biomed Res J 2017. [DOI: 10.4103/2349-3666.240591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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19
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Garg P, Kaur G, Chaudhary GR, Gawali SL, Hassan PA. Fabrication of metalosomes (metal containing cationic liposomes) using single chain surfactants as a precursor via formation of inorganic organic hybrids. Phys Chem Chem Phys 2017; 19:25764-25773. [DOI: 10.1039/c7cp02908j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This work reveals a methodology to modify a single chain surfactant to fabricate a liposome-like assembly by controlling the stoichiometry by virtue of a metallic counter ion. It is a noteworthy advancement in the area of self-assembled molecular structures.
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Affiliation(s)
- Preeti Garg
- Department of Chemistry and Centre of Advanced studies in Chemistry
- Panjab University
- Chandigarh
- India
| | - Gurpreet Kaur
- Department of Chemistry and Centre of Advanced studies in Chemistry
- Panjab University
- Chandigarh
- India
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre of Advanced studies in Chemistry
- Panjab University
- Chandigarh
- India
| | - Santosh L. Gawali
- Homi Bhabha National Institute
- Training School Complex
- Mumbai – 400 094
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
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20
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Karayil J, Kumar S, Talmon Y, Hassan PA, Tata BVR, Sreejith L. Micellar Growth in Cetylpyridinium Chloride/Alcohol System: Role of Long Chain Alcohol, Electrolyte and Surfactant Head Group. J SURFACTANTS DETERG 2016. [DOI: 10.1007/s11743-016-1826-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Barick KC, Sharma A, Shetake NG, Ningthoujam RS, Vatsa RK, Babu PD, Pandey BN, Hassan PA. Covalent bridging of surface functionalized Fe3O4 and YPO4:Eu nanostructures for simultaneous imaging and therapy. Dalton Trans 2016. [PMID: 26215789 DOI: 10.1039/c5dt01522g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnetic luminescent hybrid nanostructures (MLHN) have received a great deal of attention due to their potential biomedical applications such as thermal therapy, magnetic resonance imaging, drug delivery and intracellular imaging. We report the development of bifunctional Fe3O4 decorated YPO4:Eu hybrid nanostructures by covalent bridging of carboxyl PEGylated Fe3O4 and amine functionalized YPO4:Eu particles. The surface functionalization of individual nanoparticulates as well as their successful conjugation was evident from Fourier transform infrared (FTIR) spectroscopy, dynamic light scattering (DLS), zeta-potential and transmission electron microscopy (TEM) studies. X-ray diffraction (XRD) analysis reveals the formation of highly crystalline hybrid nanostructures. TEM micrographs clearly show the binding/anchoring of 10 nm Fe3O4 nanoparticles onto the surface of 100-150 nm rice grain shaped YPO4:Eu nanostructures. These MLHN show good colloidal stability, magnetic field responsivity and self-heating capacity under an external AC magnetic field. The induction heating studies confirmed localized heating of MLHN under an AC magnetic field with a high specific absorption rate. Photoluminescence spectroscopy and fluorescence microscopy results show optical imaging capability of MLHN. Furthermore, successful internalization of these MLHN in the cells and their cellular imaging ability are confirmed from confocal microscopy imaging. Specifically, the hybrid nanostructure provides an excellent platform to integrate luminescent and magnetic materials into one single entity that can be used as a potential tool for hyperthermia treatment of cancer and cellular imaging.
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Affiliation(s)
- K C Barick
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
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22
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Abstract
Development of biocompatible citrate-functionalized hydroxyapatite nanoparticles for pH responsive delivery of doxorubicin.
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Affiliation(s)
- Gunjan Verma
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - K. C. Barick
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Neena G. Shetake
- Radiation Biology and Health Sciences Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - B. N. Pandey
- Radiation Biology and Health Sciences Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
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23
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Kaur G, Kumar S, Dilbaghi N, Bhanjana G, Guru SK, Bhushan S, Jaglan S, Hassan PA, Aswal VK. Hybrid surfactants decorated with copper ions: aggregation behavior, antimicrobial activity and anti-proliferative effect. Phys Chem Chem Phys 2016; 18:23961-70. [DOI: 10.1039/c6cp03070j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present study, the emphasis is laid on the self aggregation behavior and biological activity of copper based inorganic–organic hybrids in aqueous media.
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Affiliation(s)
- Gurpreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry
- Panjab University
- Chandigarh 160 014
- India
| | - Sandeep Kumar
- Department of Bio and Nano Technology
- Guru Jambheshwar University of Science & Technology
- Hisar 125 001
- India
| | - Neeraj Dilbaghi
- Department of Bio and Nano Technology
- Guru Jambheshwar University of Science & Technology
- Hisar 125 001
- India
| | - Gaurav Bhanjana
- Department of Bio and Nano Technology
- Guru Jambheshwar University of Science & Technology
- Hisar 125 001
- India
| | - Santosh Kumar Guru
- Division of Cancer Pharmocolgy
- Indian Institute of Integrative Medicine
- Jammu
- India
| | - Shashi Bhushan
- Division of Cancer Pharmocolgy
- Indian Institute of Integrative Medicine
- Jammu
- India
| | - Sundeep Jaglan
- Quality Control & Quality Assurance Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - V. K. Aswal
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
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24
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Barick KC, Ekta E, Gawali SL, Sarkar A, Kunwar A, Priyadarsini KI, Hassan PA. Pluronic stabilized Fe3O4 magnetic nanoparticles for intracellular delivery of curcumin. RSC Adv 2016. [DOI: 10.1039/c6ra21207g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Water-dispersible Pluronic stabilized Fe3O4 magnetic nanoparticles were developed for intracellular delivery of hydrophobic anticancer drug.
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Affiliation(s)
- K. C. Barick
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
| | - Ekta Ekta
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
- Department of Pharmaceutical Chemistry
| | - Santosh L. Gawali
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
- Homi Bhabha National Institute
| | - Avipsha Sarkar
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
| | - A. Kunwar
- Radiation and Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
| | - K. I. Priyadarsini
- Homi Bhabha National Institute
- Mumbai – 400 094
- India
- Radiation and Photochemistry Division
- Bhabha Atomic Research Centre
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
- Homi Bhabha National Institute
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25
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Rana S, Shetake NG, Barick KC, Pandey BN, Salunke HG, Hassan PA. Folic acid conjugated Fe3O4 magnetic nanoparticles for targeted delivery of doxorubicin. Dalton Trans 2016; 45:17401-17408. [DOI: 10.1039/c6dt03323g] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The development of water-dispersible Fe3O4 magnetic nanoparticles having a carboxylic moiety for drug binding and an amine moiety for folate mediated drug targeting.
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Affiliation(s)
- Suman Rana
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
- Homi Bhabha National Institute
| | - Neena G. Shetake
- Homi Bhabha National Institute
- Mumbai – 400094
- India
- Radiation Biology and Health Sciences Division
- Bhabha Atomic Research Centre
| | - K. C. Barick
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
| | - B. N. Pandey
- Homi Bhabha National Institute
- Mumbai – 400094
- India
- Radiation Biology and Health Sciences Division
- Bhabha Atomic Research Centre
| | - H. G. Salunke
- Homi Bhabha National Institute
- Mumbai – 400094
- India
- Technical Physics Division
- Bhabha Atomic Research Centre
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
- Homi Bhabha National Institute
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26
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Rana S, Barick KC, Hassan PA. Stimuli Responsive Carboxyl PEGylated Fe 3O 4 Nanoparticles for Therapeutic Applications. J Nanofluids 2015. [DOI: 10.1166/jon.2015.1183] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Rana S, Jadhav NV, Barick KC, Pandey BN, Hassan PA. Polyaniline shell cross-linked Fe3O4 magnetic nanoparticles for heat activated killing of cancer cells. Dalton Trans 2015; 43:12263-71. [PMID: 24948377 DOI: 10.1039/c4dt00898g] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superparamagnetic Fe3O4 nanoparticles are appealing materials for heat activated killing of cancer cells. Here, we report a novel method to enhance the heat activated killing of cancer cells under an AC magnetic field (AMF) by introducing a polyaniline impregnated shell onto the surface of Fe3O4 nanoparticles. These polyaniline shell cross-linked magnetic nanoparticles (PSMN) were prepared by in situ polymerization of aniline hydrochloride on the surface of carboxyl PEGylated Fe3O4 nanoparticles. XRD and TEM analyses revealed the formation of single phase inverse spinel Fe3O4 nanoparticles of a size of about 10 nm. The successful growth of the polyaniline shell on the surface of carboxyl PEGylated magnetic nanoparticles (CPMN) is evident from FTIR spectra, DLS, TGA, zeta-potential and magnetic measurements. Both CPMN and PSMN show good colloidal stability, superparamagnetic behavior at room temperature and excellent heating efficacy under AMF. It has been observed that the heating efficacy of PSMN under AMF was slightly reduced as compared to that of CPMN. The enhanced toxicity of PSMN to cancer cells under AMF suggests their strong potential for magnetic hyperthermia. Furthermore, PSMN shows high loading affinity for an anticancer drug (doxorubicin), its sustained release and substantial internalization in tumor cells.
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Affiliation(s)
- Suman Rana
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai-400085, India.
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28
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Goswami A, Verma G, Hassan PA, Bhagwat SS. Equilibrium and Dynamic Surface Tension Behavior of Triblock Copolymer PEO-PPO-PEO in Aqueous Medium. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2014.936021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Linet Rose J, Tata BVR, Talmon Y, Aswal VK, Hassan PA, Sreejith L. Distinctive effect of maleic acid and fumaric acid on structural transitions in cationic micellar solution. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3521-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Majeed J, Barick KC, Shetake NG, Pandey BN, Hassan PA, Tyagi AK. Water-dispersible polyphosphate-grafted Fe3O4 nanomagnets for cancer therapy. RSC Adv 2015. [DOI: 10.1039/c5ra16343a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Development of water-dispersible polyphosphate-grafted Fe3O4 nanomagnets for hyperthermia and drug delivery applications.
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Affiliation(s)
- Jerina Majeed
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - K. C. Barick
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Neena G. Shetake
- Radiation Biology and Health Sciences Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - B. N. Pandey
- Radiation Biology and Health Sciences Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - A. K. Tyagi
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
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31
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Ningthoujam RS, Sharma A, Sharma KS, Barick KC, Hassan PA, Vatsa RK. Roles of solvent, annealing and Bi3+ co-doping on the crystal structure and luminescence properties of YPO4:Eu3+ nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra11587f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
There are roles of solvent, annealing and Bi3+ co-doping on crystal structure and luminescence properties of YPO4:Eu3+ nanoparticles.
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Affiliation(s)
| | - Anusha Sharma
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - K. S. Sharma
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - K. C. Barick
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - R. K. Vatsa
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
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Dey J, Kumar S, Aswal VK, Panicker LV, Ismail K, Hassan PA. Effect of sodium salicylate and sodium deoxycholate on fibrillation of bovine serum albumin: comparison of fluorescence, SANS and DLS techniques. Phys Chem Chem Phys 2015; 17:15442-51. [DOI: 10.1039/c5cp01666e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adsorbed sodium salicylate (NaSal) and sodium deoxycholate (NaDC) retard the thermal denaturation of bovine serum albumin.
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Affiliation(s)
- J. Dey
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
| | - S. Kumar
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
| | - V. K. Aswal
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
| | - L. V. Panicker
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
| | - K. Ismail
- Department of Chemistry
- North-Eastern Hill University
- Shillong – 793022
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400085
- India
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33
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Karayil J, Kumar S, Hassan PA, Talmon Y, Sreejith L. Microstructural transition of aqueous CTAB micelles in the presence of long chain alcohols. RSC Adv 2015. [DOI: 10.1039/c4ra10052b] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The effect of long chain alcohols (C9OH–C12OH) on the micellar properties of CTAB in the presence of an inorganic salt, KBr, has been systematically studied by viscometry, rheology, DLS and the direct imaging technique,i.e.cryo-TEM.
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Affiliation(s)
| | - Sanjeev Kumar
- Department of Applied Chemistry
- Faculty of Technology and Engineering
- The Maharaja Sayajirao University of Baroda
- Vadodara
- India
| | | | - Yeshayahu Talmon
- Department of Chemical Engineering
- Technion-Israel Institute of Technology
- Haifa
- Israel
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John F, George J, Srivastava M, Hassan PA, Aswal VK, Karki SS, Raghavan SC. Pluronic copolymer encapsulated SCR7 as a potential anticancer agent. Faraday Discuss 2015; 177:155-61. [DOI: 10.1039/c4fd00176a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nonhomologous end joining (NHEJ) of DNA double strand breaks (DSBs) inside cells can be selectively inhibited by 5,6-bis-(benzylideneamino)-2-mercaptopyrimidin-4-ol (SCR7) which possesses anticancer properties. The hydrophobicity of SCR7 decreases its bioavailability which is a major setback in the utilization of this compound as a therapeutic agent. In order to circumvent the drawback of SCR7, we prepared a polymer encapsulated form of SCR7. The physical interaction of SCR7 and Pluronic® copolymer is evident from different analytical techniques. The in vitro cytotoxicity of the drug formulations is established using the MTT assay.
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Affiliation(s)
- Franklin John
- Biotechnology Laboratory
- PG and Research Department of Chemistry
- Sacred Heart College
- Kochi 682 013
- India
| | - Jinu George
- Biotechnology Laboratory
- PG and Research Department of Chemistry
- Sacred Heart College
- Kochi 682 013
- India
| | - Mrinal Srivastava
- Department of Biochemistry
- Indian Institute of Science
- Bangalore 560 012
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - V. K. Aswal
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Subhas. S. Karki
- Department of Pharmaceutical Chemistry
- KLE University
- Bangalore 560 010
- India
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35
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Rose J L, Tata BVR, Aswal VK, Hassan PA, Talmon Y, Sreejith L. pH-switchable structural evolution in aqueous surfactant-aromatic dibasic acid system. Eur Phys J E Soft Matter 2015; 38:4. [PMID: 25627915 DOI: 10.1140/epje/i2015-15004-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 12/31/2014] [Accepted: 01/05/2015] [Indexed: 05/24/2023]
Abstract
Structural transitions triggered by pH in an aqueous micellar system comprising of a cationic surfactant (cetylpyridinium chloride) and an aromatic dibasic acid (phthalic acid) was investigated. Reversible switching between liquid-like and gel-like states was exhibited by the system on adjusting the solution pH. Self-assembled structures, responsible for the changes in flow properties were identified using rheology, light scattering techniques and cryogenic Transmission Electron Microscopy (cryo-TEM). High-viscosity, shear-thinning behavior and Maxwell-type dynamic rheology shown by the system at certain pH values suggested the growth of spheroidal/short cylindrical micelles into long and entangled structures. Light scattering profiles also supported the notion of pH-induced microstructural transitions in the solution. Cryo-TEM images confirmed the presence of spheroidal/short cylindrical micelles in the low-viscosity sample whereas very long and entangled thread-like micelles in the peak viscosity sample. pH-dependent changes in the micellar binding ability of phthalic acid is proposed as the key factor regulating the morphological transformations and related flow properties of the system.
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Affiliation(s)
- Linet Rose J
- Department of Chemistry, NIT Calicut, 673601, Kerala, India
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Chakravarty R, Chakraborty S, Vimalnath KV, Shetty P, Sarma HD, Hassan PA, Dash A. 64CuCl2 produced by direct neutron activation route as a cost-effective probe for cancer imaging: the journey has begun. RSC Adv 2015. [DOI: 10.1039/c5ra17266g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Neutron activated 64CuCl2 is a cost-effective PET probe for non-invasive visualization of various types of cancers.
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Affiliation(s)
- Rubel Chakravarty
- Isotope Production and Applications Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Sudipta Chakraborty
- Isotope Production and Applications Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - K. V. Vimalnath
- Isotope Production and Applications Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Priyalata Shetty
- Isotope Production and Applications Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Haladhar Dev Sarma
- Radiation Biology and Health Sciences Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - P. A. Hassan
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Ashutosh Dash
- Isotope Production and Applications Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
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Linet Rose J, Tata BVR, Talmon Y, Aswal VK, Hassan PA, Sreejith L. Micellar solution with pH responsive viscoelasticity and colour switching property. RSC Adv 2015. [DOI: 10.1039/c4ra14195d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Macroscopic properties of amphiphilic systems can be reversibly controlled by tailoring micellar morphology via appropriate choice of additive and external stimulus.
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Affiliation(s)
| | - B. V. R. Tata
- Condensed Matter Physics Division
- IGCAR
- Kalpakkam
- India
| | - Yeshayahu Talmon
- Department of Chemical Engineering
- Technion-Israel Institute of Technology
- Haifa
- Israel
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John F, George J, Vartak SV, Srivastava M, Hassan PA, Aswal VK, Karki SS, Raghavan SC. Enhanced efficacy of pluronic copolymer micelle encapsulated SCR7 against cancer cell proliferation. Macromol Biosci 2014; 15:521-34. [PMID: 25515310 DOI: 10.1002/mabi.201400480] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 11/14/2014] [Indexed: 12/22/2022]
Abstract
5,6-Bis(benzylideneamino)-2-mercaptopyrimidin-4-ol (SCR7) is a new anti cancer molecule having capability to selectively inhibit non-homologous end joining (NHEJ), one of the DNA double strand break (DSB) repair pathways inside the cells. In spite of the promising potential as an anticancer agent, hydrophobicity of SCR7 decreases its bioavailability. Herein the entrapment of SCR7 in Pluronic copolymer is reported. The size of the aggregates was determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS) which yields an average diameter of 23 nm. SCR7 encapsulated micelles (ES) were also characterized by small-angle neutron scattering (SANS). Evaluation of its biological properties by using a variety of techniques, including Trypan blue, MTT and Live-dead cell assays, reveal that encapsulated SCR7 can induce cytotoxicity in cancer cell lines, being more effective in breast cancer cell line. Encapsulated SCR7 treatment resulted in accumulation of DNA breaks within the cells, resulting in cell cycle arrest at G1 phase and activation of apoptosis. More importantly, we found ≈ 5 fold increase in cell death, when encapsulated SCR7 was used in comparison with SCR7 alone.
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Affiliation(s)
- Franklin John
- Biotechnology Laboratory, Department of Chemistry, Sacred Heart College, Kochi, 682 013, India
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39
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Goswami A, Verma G, Hassan PA, Aswal VK, Bhagwat SS. Dynamic Interfacial Behavior of Poly(oxyethylene) Lauryl Ether Based Surfactant Mixtures. J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2013.871554] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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40
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Jain V, Hassan PA, Das B. Radiation-induced conformational changes in chromatin structure in resting human peripheral blood mononuclear cells. Int J Radiat Biol 2014; 90:1143-51. [PMID: 24844371 DOI: 10.3109/09553002.2014.925605] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
UNLABELLED Abstract Background: Ionizing radiation induces a plethora of DNA damage including double-strand breaks (DSB) that may trigger a series of events such as transcription, DNA repair and alteration in the conformation of chromatin structure in human cells. We have made an attempt to study the conformational changes in chromatin fibers in irradiated human peripheral blood mononuclear cells (PBMC) using Dynamic Light Scattering (DLS) as a new tool. MATERIALS AND METHODS Venous blood samples were collected from 10 random, healthy individuals with written informed consent, approved by institutional ethics committee. PBMC were separated from blood, irradiated with different doses of gamma radiation from 0.25-1.0 Gy. Native chromatin was isolated from irradiated PBMC and changes in the hydrodynamic diameter of the chromatin fiber were measured using DLS. Both dose response and time kinetics was studied in order to see the chromatin changes. Radiation-induced DNA double-strand breaks were measured using gamma-H2AX (histone 2A member X) as a biomarker using flow cytometry and foci were visualized in confocal microscopy. RESULTS A significant alteration in hydrodynamic diameter of the chromatin fiber was observed at lower doses (0.25 and 0.50 Gy), whereas at higher dose (1.0 Gy), the size of the chromatin fiber was comparable to unirradiated control. Among the 10 individuals studied, five individuals showed significant increase (p ≤ 0.002) in hydrodynamic size at 0.25 Gy whereas four individuals showed significant decrease (p ≤ 0.009) at 0.25 Gy. One individual did not show any significant difference as compared to control. However, dose-dependent increase in gamma-H2AX fluorescence signals as well as foci number was observed. Increased fragmentation of chromatin fiber was also observed using Atomic Force Microscopy at higher doses. CONCLUSION Radiation-induced DNA damage response can lead to individual specific conformational changes in chromatin structure at lower doses (0.25 Gy and 0.50 Gy) which can be detected using dynamic light scattering method in resting human PBMC.
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Affiliation(s)
- Vinay Jain
- Low Level Radiation Research Section, Radiation Biology and Health Sciences Division, Bio Science Group, Bhabha Atomic Research Centre , Trombay, Mumbai-400 085 , India
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41
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Chaudhari VR, Hassan PA, Haram SK. Size-dependent quantized double layer charging of monolayer-protected silver nanoparticles. NEW J CHEM 2014. [DOI: 10.1039/c3nj01077e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bhattacharjee J, Verma G, Aswal VK, Patravale V, Hassan PA. Microstructure, drug binding and cytotoxicity of Pluronic P123–aerosol OT mixed micelles. RSC Adv 2013. [DOI: 10.1039/c3ra44983a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Barick KC, Hassan PA. Glycine passivated Fe3O4 nanoparticles for thermal therapy. J Colloid Interface Sci 2011; 369:96-102. [PMID: 22209576 DOI: 10.1016/j.jcis.2011.12.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 12/02/2011] [Accepted: 12/03/2011] [Indexed: 10/14/2022]
Abstract
We demonstrate a single-step facile approach for the synthesis of glycine (amino acid) passivated Fe(3)O(4) magnetic nanoparticles (GMNPs) using soft chemical route. The surface passivation of Fe(3)O(4) nanoparticles with glycine molecules was evident from infrared spectroscopy, thermal and elemental analyses, and light scattering measurements. These nanoparticles show better colloidal stability, good magnetization, excellent self-heating capacity under external AC magnetic field and cytocompatibility with cell lines. Further, the active functional groups (-NH(2)) present on the surface of Fe(3)O(4) nanoparticles can be accessible for routine conjugation of biomolecules/biolabelling through well-developed bioconjugation chemistry. Specifically, a new colloidal glycine passivated biocompatible Fe(3)O(4) nanoparticles with excellent specific absorption rate (SAR) have been fabricated, which can be used as an effective heating source for hyperthermia treatment of cancer (thermal therapy).
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Affiliation(s)
- K C Barick
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
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45
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Koshy P, Aswal VK, Venkatesh M, Hassan PA. Unusual Scaling in the Rheology of Branched Wormlike Micelles Formed by Cetyltrimethylammonium Bromide and Sodium Oleate. J Phys Chem B 2011; 115:10817-25. [DOI: 10.1021/jp2053986] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Prasuna Koshy
- Chemistry Division, ‡Radiopharmaceuticals Division, and §Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - V. K. Aswal
- Chemistry Division, ‡Radiopharmaceuticals Division, and §Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Meera Venkatesh
- Chemistry Division, ‡Radiopharmaceuticals Division, and §Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - P. A. Hassan
- Chemistry Division, ‡Radiopharmaceuticals Division, and §Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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Bhattacharyya A, Mohapatra PK, Hassan PA, Manchanda VK. Studies on the selective Am3+ transport, irradiation stability and surface morphology of polymer inclusion membranes containing Cyanex-301 as carrier extractant. J Hazard Mater 2011; 192:116-123. [PMID: 21621918 DOI: 10.1016/j.jhazmat.2011.04.105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 04/07/2011] [Accepted: 04/28/2011] [Indexed: 05/30/2023]
Abstract
Transport behaviour of Am(3+) across cellulose triacetate (CTA) based polymer inclusion membranes (PIM) containing Cyanex-301 (bis(2,4,4-trimethylpentyl)dithiophosphinic acid) as the carrier extractant and tri-n-butyl phosphate (TBP) or 2-nitrophenyloctylether (NPOE) as the plasticizer was investigated from different feed and strip conditions. The TBP plasticized membrane resulted back transport of Am when alpha-hydroxy iso-butyric acid was used as the complexing agent in the strip phase while no such effect was seen when ethylene diamine tetraacetic acid (EDTA) was used as the complexant. Effect of varying Cyanex-301 concentration and bipyridyl (bipy) concentration on Am transport was also investigated. Long term reusability of the membrane was studied by measuring the permeability coefficient (P) after exposing the PIMs to a maximum gamma ray dose of ∼ 200 kGy. The surface morphology of the membranes was analyzed by atomic force microscopy and the roughness parameter was correlated to transport efficiency.
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Affiliation(s)
- A Bhattacharyya
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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Date AA, Nagarsenker MS, Patere S, Dhawan V, Gude RP, Hassan PA, Aswal V, Steiniger F, Thamm J, Fahr A. Lecithin-Based Novel Cationic Nanocarriers (Leciplex) II: Improving Therapeutic Efficacy of Quercetin on Oral Administration. Mol Pharm 2011; 8:716-26. [DOI: 10.1021/mp100305h] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Abhijit A. Date
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - Mangal S. Nagarsenker
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - Shilpa Patere
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - Vivek Dhawan
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - R. P. Gude
- Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai-410210, India
| | - P. A. Hassan
- Bhabha Atomic Research Center, Mumbai 400 085, India
| | - V. Aswal
- Bhabha Atomic Research Center, Mumbai 400 085, India
| | - Frank Steiniger
- Center for Electron Microscopy of the Medical Faculty, Friedrich-Schiller-University Jena, Ziegelmühlenweg 1, D-07740 Jena, Germany
| | - Jana Thamm
- Department of Pharmaceutical Technology, Friedrich-Schiller-University Jena, Lessingstr. 8, D-07743 Jena, Germany
| | - Alfred Fahr
- Department of Pharmaceutical Technology, Friedrich-Schiller-University Jena, Lessingstr. 8, D-07743 Jena, Germany
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Sharma VK, Mitra S, Verma G, Hassan PA, Garcia Sakai V, Mukhopadhyay R. Internal dynamics in SDS micelles: neutron scattering study. J Phys Chem B 2010; 114:17049-56. [PMID: 21138301 DOI: 10.1021/jp108274y] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The molecular dynamics of sodium dodecyl sulfate (SDS) micelle has been investigated using high-resolution incoherent quasielastic neutron scattering technique. Data analysis clearly shows presence of two distinct motions: whole micellar motion or global diffusion and faster internal motion of the SDS monomer. The global diffusion associated with the whole micelle is found to be Fickian in nature, and the corresponding diffusion coefficients are found to be consistent with those obtained from dynamic light scattering measurements. The internal motion is described with a model consistent with the structure of the micelle and which accounts for the flexibility of the chains. The SDS monomer consists of a head group, which lies on the surface of the globular micelle, and a tail that hangs from the head toward the center of the globule. Considering various factors like conformational changes of the SDS chains, bending, stretching of the chemical bonds, etc., the dynamics of the SDS molecules is successfully described by a model in which the hydrogen atoms undergo localized translational motion confined within spherical volumes. This volume increases linearly along the SDS chain such that the hydrogen atoms closer to the head group move within smaller spheres with lower diffusion constant than the hydrogen atoms away from the head group. This model is found to be consistent with the data over the whole temperature and concentration range. Diffusivity and the volume of the spheres are also found to increase with temperature. The effect of lowering the SDS concentration is found to be similar to that of increasing the temperature.
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Affiliation(s)
- V K Sharma
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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Bhattacharjee J, Verma G, Aswal VK, Date AA, Nagarsenker MS, Hassan PA. Tween 80-sodium deoxycholate mixed micelles: structural characterization and application in doxorubicin delivery. J Phys Chem B 2010; 114:16414-21. [PMID: 21080698 DOI: 10.1021/jp108225r] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The objective of the present investigation is to develop and characterize anionic mixed micelles of two biocompatible surfactants, Tween 80 (T-80) and sodium deoxycholate (NaDC), and evaluate their potential in the delivery of doxorubicin hydrochloride (DOX), a cationic anticancer drug. The mixed micelles were characterized for their microstructure, intermicellar interactions, and doxorubicin binding ability by dynamic light scattering, small angle neutron scattering (SANS), viscosity, and optical absorption measurements. Salt-induced growth of the mixed micelles at different compositions suggests that both electrostatic interaction of the anionic bile salts and steric repulsion of the ethylene oxide groups in nonionic components are affected by the presence of electrolytes. Addition of bile salt molecules to T-80 micelles suppresses the salt-induced growth of nonionic T-80 micelles. SANS studies indicate that bile salt micelles are prolate ellipsoidal in shape, and the addition of T-80 transforms them toward a spherical shape. The anionic bile salt can successfully bind to the cationic drug doxorubicin. The in vitro cytotoxicity studies in various cancer cell lines revealed that DOX-loaded micelles have greater in vitro anticancer activity as compared to DOX solution, indicating their potential in pharmaceutical applications.
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Affiliation(s)
- Jayita Bhattacharjee
- Chemistry Division, Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai-400 085, India
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Dey J, Bhattacharjee J, Hassan PA, Aswal VK, Das S, Ismail K. Micellar shape driven counterion binding. Small-angle neutron scattering study of AOT micelle. Langmuir 2010; 26:15802-15806. [PMID: 20857950 DOI: 10.1021/la1027652] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Sodium dioctylsulfosuccinate (AOT) micelle has a special counterion binding behavior in aqueous electrolyte medium, viz., the counterion binding constant (β) abruptly increases by 2-fold at about 0.015 mol dm(-3) NaCl concentration (c*), but not in sodium salicylate (NaSa) solution. Since counterions affect the structure and performance of ionic surfactants, ascertaining the cause for the sudden shift in the β value of AOT micelle is of fundamental importance. In this study the special counterion binding behavior of AOT micelle has been ascertained at 40 °C by carrying out surface tension, zeta potential, and fluorescence emission (pyrene probe) measurements. The results of the small-angle neutron scattering experiment carried out at 40 °C showed that at c* the shape of AOT micelle changes from prolate spheroid to rodlike in NaCl solution, but not in NaSa solution, thus establishing micellar shape change as responsible for the abrupt change in β value. The absence of sudden shift in β of AOT micelle in NaSa solution is attributed to the binding of salicylate coanion to AOT micelle through hydrophobic interaction.
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Affiliation(s)
- J Dey
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
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