1
|
Giram P, Nimma R, Bulbule A, Yadav AS, Gorain M, Venkata Radharani NN, Kundu GC, Garnaik B. Poly(d,l-lactide- co-glycolide) Surface-Anchored Biotin-Loaded Irinotecan Nanoparticles for Active Targeting of Colon Cancer. ACS Omega 2024; 9:3807-3826. [PMID: 38284072 PMCID: PMC10809773 DOI: 10.1021/acsomega.3c07833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024]
Abstract
A poly(d,l-lactide-co-glycolide) (PLGA) copolymer was synthesized using the ring-opening polymerization of d,l-lactide and glycolide monomers in the presence of zinc proline complex in bulk through the green route and was well characterized using attenuated total reflectance-Fourier transform infrared, 1H and 13C nuclear magnetic resonance, gel permeation chromatography, differential scanning calorimetry, X-ray diffraction, matrix-assisted laser desorption/ionization time-of-flight, etc. Furthermore, PLGA-conjugated biotin (PLGA-B) was synthesized using the synthesized PLGA and was employed to fabricate nanoparticles for irinotecan (Ir) delivery. These nanoparticles (PLGA-NP-Ir and PLGA-B-NP-Ir) were tested for physicochemical and biological characteristics. PLGA-B-NP-Ir exhibited a stronger cellular uptake and anticancer activity as compared to PLGA-NP-Ir in CT-26 cancer cells (log p < 0.05). The accumulation and retention of fluorescence-labeled nanoparticles were observed to be better in CT-26-inoculated solid tumors in Balb/c mice. The PLGA-B-NP-Ir-treated group inhibited tumor growth significantly more (log p < 0.001) than the untreated control, PLGA-NP-Ir, and Ir-treated groups. Furthermore, no body weight loss, hematological, and blood biochemical tests demonstrated the nanocarriers' nontoxic nature. This work presents the use of safe PLGA and the demonstration of a proof-of-concept of biotin surface attached PLGA nanoparticle-mediated active targeted Ir administration to combat colon cancer. To treat colon cancer, PLGA-B-NP-Ir performed better due to specific active tumor targeting and greater cellular uptake due to biotin.
Collapse
Affiliation(s)
- Prabhanjan
S. Giram
- Polymer
Science and Engineering Division, CSIR-National
Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research AcSIR Headquarters, CSIR-HRDC Campus Sector 19, Kamla
Nehru Nagar, Ghaziabad, Uttar
Pradesh 201 002, India
| | - Ramakrishna Nimma
- Laboratory
of Tumor, Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune 411007, India
| | - Anuradha Bulbule
- Laboratory
of Tumor, Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune 411007, India
| | - Amit Singh Yadav
- Laboratory
of Tumor, Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune 411007, India
| | - Mahadeo Gorain
- Laboratory
of Tumor, Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune 411007, India
| | | | - Gopal C. Kundu
- School
of Biotechnology and Kalinga Institute of Medical Sciences (KIMS), KIIT Deemed to be University, Institute of Eminence, Bhubaneswar 751 024, India
| | - Baijayantimala Garnaik
- Polymer
Science and Engineering Division, CSIR-National
Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research AcSIR Headquarters, CSIR-HRDC Campus Sector 19, Kamla
Nehru Nagar, Ghaziabad, Uttar
Pradesh 201 002, India
| |
Collapse
|
2
|
Deokar M, Garnaik B, Sivaram S. Toughening Poly(l-lactide) Blends: Effectiveness of Sequence-Controlled Six-Arm Star-Branched Block Copolymers of Poly(l-lactide) and Poly(ε-caprolactone). ACS Omega 2022; 7:9118-9129. [PMID: 35350312 PMCID: PMC8945082 DOI: 10.1021/acsomega.1c04486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 02/23/2022] [Indexed: 05/14/2023]
Abstract
Well-defined six-arm star-branched bio-degradable block copolymers of l-lactide and ε-caprolactone were prepared using controlled ring-opening polymerization and a sequential monomer addition method using dipentaerythritol as the initiator core and organocatalysts at low temperatures in solution. Sequence of enchainment was changed by reversing the order of monomer addition giving, either, a crystalline PLA block or an amorphous PCL block as the outer segment. Well-defined six-arm poly(ε-caprolactone-b-l-lactide, 6s-PCL-b-PLA) block copolymers were obtained with a range of segment molecular weights. However, in the case of six-arm poly(l-lactide-b-ε-caprolactone, 6s-PLA-b-PCL), disruption of the block structure was observed on account of competing transesterification reactions accompanying a chain-growth reaction. Such sequence-controlled block copolymers showed interesting phase morphologies, as evidenced by differential scanning calorimetry (DSC) studies. 6s-PCL-b-PLA showed two glass-transition temperatures and two melting temperatures characteristic of the amorphous and crystalline blocks. 6s-PCL-b-PLA and 6s-PLA-b-PCL with different segment chain lengths were solution blended (10 wt %) with a commercially sourced PLA. All the blends were highly transparent. The structure and properties of the blend were examined by DSC, measurement of mechanical properties, and scanning electron microscopy. The results show that a phase-separated 6s-PCL-b-PLA copolymer results in two- to three-fold improvement in tensile toughness without the loss of modulus. A possible hypothesis for the mechanism of tensile toughness in the blend has been proposed.
Collapse
Affiliation(s)
- Megha
D. Deokar
- Polymer
Science and Engineering Division, Council
of Scientific and Industrial Research-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research AcSIR Headquarters, Council of Scientific and Industrial Research-Human
Resource Development Centre Campus Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201002, India
| | - Baijayantimala Garnaik
- Polymer
Science and Engineering Division, Council
of Scientific and Industrial Research-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research AcSIR Headquarters, Council of Scientific and Industrial Research-Human
Resource Development Centre Campus Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201002, India
| | - Swaminathan Sivaram
- Indian
Institute of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India
| |
Collapse
|
3
|
Giram PS, Garnaik B. Evaluation of biocompatibility of synthesized low molecular weight
PLGA
copolymers using zinc L‐proline through green route for biomedical application. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Prabhanjan S. Giram
- Polymer Science and Engineering Division CSIR‐National Chemical Laboratory Pune India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division CSIR‐National Chemical Laboratory Pune India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| |
Collapse
|
4
|
Giram PS, Wang JTW, Walters AA, Rade PP, Akhtar M, Han S, Faruqu FN, Abdel-Bar HM, Garnaik B, Al-Jamal KT. Green synthesis of methoxy-poly(ethylene glycol)-block-poly(l-lactide-co-glycolide) copolymer using zinc proline as a biocompatible initiator for irinotecan delivery to colon cancer in vivo. Biomater Sci 2021; 9:795-806. [PMID: 33206082 DOI: 10.1039/d0bm01421d] [Citation(s) in RCA: 6] [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: 11/21/2022]
Abstract
Poly(lactic-co-glycolic acid) (PLGA) is the most commonly described biocompatible copolymer used in biomedical applications. In this work, a green synthetic approach based on the biocompatible zinc proline complex, as an initiator for PLGA synthesis, is reported for the first time for the synthesis of methoxy-poly(ethylene glycol)-block-poly(l-lactic-co-glycolic acid) (mPEG-PLGA). mPEG-PLGA with controlled molecular weight and narrow polydispersity was synthesised. Its potential for delivery of irinotecan (Ir), a poorly water-soluble chemotherapeutic drug used for the treatment of colon and pancreatic cancer, was studied. Nanoparticles of controlled size (140-160 nm), surface charge (∼-10 mV), release properties and cytotoxicity against CT-26 (colon) and BxPC-3 (pancreatic) cancer cells, were prepared. Tumor accumulation was confirmed by optical imaging of fluorescently labelled nanoparticles. Unlike Tween® 80 coated NP-Ir, the Pluronic® F-127 coated NP-Ir exhibits significant tumor growth delay compared to untreated and blank formulation treated groups in the CT-26 subcutaneous tumor model, after 4 treatments of 30 mg irinotecan per kg dose. Overall, this proof-of-concept study demonstrates that the newly synthesized copolymer, via a green route, is proven to be nontoxic, requires fewer purification steps and has potential applications in drug delivery.
Collapse
Affiliation(s)
- Prabhanjan S Giram
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune-411008, India.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Affiliation(s)
- Priyanka P. Rade
- Polymer Science and Engineering Division, CSIR- National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division, CSIR- National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
6
|
Rade PP, Garnaik B. Synthesis and characterization of biocompatible poly (L-lactide) using zinc (II) salen complex. International Journal of Polymer Analysis and Characterization 2020. [DOI: 10.1080/1023666x.2020.1783496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Priyanka P. Rade
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| |
Collapse
|
7
|
Shitole AA, Raut P, Giram P, Rade P, Khandwekar A, Garnaik B, Sharma N. Poly (vinylpyrrolidone)‑iodine engineered poly (ε-caprolactone) nanofibers as potential wound dressing materials. Materials Science and Engineering: C 2020; 110:110731. [PMID: 32204042 DOI: 10.1016/j.msec.2020.110731] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 06/27/2019] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 02/08/2023]
Abstract
Facilitating the process of wound healing and effective treatment of wounds remains a serious challenge in healthcare. Wound dressing materials play a major role in the protection of wounds and in accelerating the natural healing process. In the present study, novel core/shell (c/s) nanofibrous mats of poly(vinyl pyrrolidone)‑iodine (PVPI) and polycaprolactone (PCL) were fabricated using a co-axial electrospinning process followed by their surface modification with poly-l-lysine. The developed nanofibrous mats were extensively characterized for their physicochemical properties using various analytical techniques. The core/shell structure of the PVP-I/PCL nanofibers was confirmed using TEM analysis. The PVP-I release studies showed an initial burst phase followed by a sustained release pattern of PVP-I over a period of 30 days. The developed nanofibers exhibited higher BSA and fibrinogen adsorption as compared to pristine PCL. Cytotoxicity studies using MTT assay demonstrated that the PVP-I/PCL (c/s) nanofibers were cytocompatible at optimized PVP-I concentration (3 wt%). The PCL-poly-l-lysine and PVP-I/PCL-poly-l-lysine nanofibers exhibited higher cell viability (24.2% and 21.4% higher at day 7) when compared to uncoated PCL and PVP-I/PCL nanofibers. The PVP-I/PCL nanofibers showed excellent antimicrobial activity against both Gram-positive (S. aureus) and Gram-negative (E. coli) bacteria. The inflammatory response of Mouse RAW 264.7 macrophage cells towards the nanofibers was studied using RT-PCR. It revealed that the pro-inflammatory cytokines (TNF-α and IL-1β) were significantly upregulated on PCL nanofibers, while their expression was comparatively lower on poly-l-lysine coated PCL or PVP-I/PCL(c/s) nanofibers. Overall, the study highlights the ability of poly-l-lysine coated PVP-I/PCL (c/s) nanofibers as potential wound dressing materials effectively facilitating the early stage wound healing and repair process by virtue of their selective modulation of inflammation, cell adhesion and antimicrobial properties.
Collapse
Affiliation(s)
- Ajinkya A Shitole
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, Maharashtra, India
| | - Piyush Raut
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, Maharashtra, India
| | - Prabhanjan Giram
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka Rade
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Anand Khandwekar
- School of Engineering, Ajeenkya DY Patil University (ADYPU), Charholi Budruk, Pune 412105, Maharashtra, India.
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India
| | - Neeti Sharma
- School of Engineering, Ajeenkya DY Patil University (ADYPU), Charholi Budruk, Pune 412105, Maharashtra, India.
| |
Collapse
|
8
|
Mohite KK, Garnaik B. Kinetic and biocompatibility investigation on the catalytic ring opening polymerization of l-lactide in bulk using cyclic Bu2Sn initiators derived from ethylene glycol, pentaerythritol and cloisite 30B. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114202] [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: 01/09/2023]
|
9
|
Shitole AA, Raut PW, Sharma N, Giram P, Khandwekar AP, Garnaik B. Electrospun polycaprolactone/hydroxyapatite/ZnO nanofibers as potential biomaterials for bone tissue regeneration. J Mater Sci Mater Med 2019; 30:51. [PMID: 31011810 DOI: 10.1007/s10856-019-6255-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 04/11/2019] [Indexed: 05/20/2023]
Abstract
Fabricating a bioartificial bone graft possessing structural, mechanical and biological properties mimicking the real bone matrix is a major challenge in bone tissue engineering. Moreover, the developed materials are prone to microbial invasion leading to biomaterial centered infections which might limit their clinical translation. In the present study, biomimetic nanofibrous scaffolds of Poly ɛ-caprolactone (PCL)/nano-hydroxyapatite (nHA) were electrospun with 1wt%, 5wt%, 10wt%, 15wt% and 30wt% of zinc oxide (ZnO) nanoparticles in order to understand the optimal concentration range of (ZnO) nanoparticles balancing both biocompatibility and osteoregeneration. The developed nanofibrous scaffolds were successfully characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDAX), contact angle, fourier transform infrared spectroscopy (FTIR), wide-angle X-Ray diffraction (WAXD), brunaueremmett Teller (BET) surface area and tensile testing. Biocompatibility of the developed scaffolds at in vitro level was evaluated by culturing MG-63 cells and investigating the impact on cell viability, proliferation, protein adsorption, alkaline phosphatase (ALP) activity and biomineralization. The PCL/nHA scaffolds exhibited a 1.2-fold increase in cell viability and proliferation, while incorporation of ZnO nanoparticles to PCL/nHA imparted antimicrobial activity to the scaffolds with a progressive increase in the antimicrobial efficacy with increasing ZnO concentration. The results of cell viability were supported by ALP activity and mineralization assay, wherein, PCL/nHA/ZnO scaffolds showed higher ALP activity and better mineralization capacity as compared to pristine PCL. Although, the PCL/nHA/ZnO scaffolds with 10, 15 and 30wt% of ZnO particles exhibited superior antimicrobial efficacy against both gram-negative (E. coli) and gram-positive (S. aureus) bacteria, a significant decrease in the cell viability and mechanical properties was observed at higher concentrations of ZnO namely 15 and 30%. Amongst the various ZnO concentrations studied optimal cell viability, antimicrobial effect and mechanical strength were observed at 10wt.% ZnO concentration. Thus, the present study revealed that the biomimetic tri-component PCL/nHA/ZnO scaffolds with ZnO concentration range of ≤ 10% could be ideal for achieving optimal biocompatibility (cell proliferation, biomineralization, and antimicrobial capacity) and mechanical stability thus making it a promising biomaterial substrate for bone tissue regeneration.
Collapse
Affiliation(s)
- Ajinkya A Shitole
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Gram- Lavale; Taluka- Mulshi, Pune, 412115, India
| | - Piyush W Raut
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Gram- Lavale; Taluka- Mulshi, Pune, 412115, India
| | - Neeti Sharma
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Gram- Lavale; Taluka- Mulshi, Pune, 412115, India.
| | - Prabhanjan Giram
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune, 411008, India
| | - Anand P Khandwekar
- School of Engineering, Ajeenkya DY Patil University (ADYPU), Pune, 412105, India
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune, 411008, India
| |
Collapse
|
10
|
Shitole AA, Giram PS, Raut PW, Rade PP, Khandwekar AP, Sharma N, Garnaik B. Clopidogrel eluting electrospun polyurethane/polyethylene glycol thromboresistant, hemocompatible nanofibrous scaffolds. J Biomater Appl 2019; 33:1327-1347. [DOI: 10.1177/0885328219832984] [Citation(s) in RCA: 19] [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: 11/17/2022]
Abstract
Biomaterials used as blood-contacting material must be hemocompatible and exhibit lower thrombotic potential while maintaining hemostasis and angiogenesis. With the aim of developing thromboresistant, hemocompatible nanofibrous scaffolds, polyurethane/polyethylene glycol scaffolds incorporated with 1, 5, and 10 wt% Clopidogrel were fabricated and evaluated for their physiochemical properties, biocompatibility, hemocompatibility, and antithrombotic potential. The results of physicochemical characterization revealed the fabrication of nanometer-sized scaffolds with smooth surfaces. The incorporation of both polyethylene glycol and Clopidogrel to polyurethane enhanced the hydrophilicity and water uptake potential of polyurethane/polyethylene glycol/Clopidogrel scaffolds. The dynamic mechanical analysis revealed the enhancement in mechanical strength of the polyurethane/polyethylene glycol scaffolds on incorporation of Clopidogrel. The polyurethane/polyethylene glycol/Clopidogrel scaffolds showed a tri-phasic drug release pattern. The results of hemocompatibility assessment demonstrated the excellent blood compatibility of the polyurethane/polyethylene glycol/Clopidogrel scaffolds, with the developed scaffolds exhibiting lower hemolysis, increased albumin and plasma protein adsorption while reduction in fibrinogen adsorption. Further, the platelet adhesion was highly suppressed and significant increase in coagulation period was observed for Clopidogrel incorporated scaffolds. The results of cell adhesion and cell viability substantiate the biocompatibility of the developed nanofibrous scaffolds with the HUVEC cell viability on polyurethane/polyethylene glycol, polyurethane/polyethylene glycol/Clopidogrel-1, 5, and 10% at day 7 found to be 12.35, 13.36, 14.85, and 4.18% higher as compared to polyurethane scaffolds, and the NIH/3T3 cell viability found to be 35.27, 70.82, 36.60, and 7.95% higher as compared to polyurethane scaffolds, respectively. Altogether the results of the study advocate the incorporation of Clopidogrel to the polyurethane/polyethylene glycol blend in order to fabricate scaffolds with appropriate antithrombotic property, hemocompatibility, and cell proliferation capacity and thus, might be successfully used as antithrombotic material for biomedical application.
Collapse
Affiliation(s)
- Ajinkya A Shitole
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, India
| | - Prabhanjan S Giram
- Polymer Science and Engineering Division, CSIR- National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Piyush W Raut
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, India
| | - Priyanka P Rade
- Polymer Science and Engineering Division, CSIR- National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Anand P Khandwekar
- School of Engineering, Ajeenkya DY Patil University (ADYPU), Pune, India
| | - Neeti Sharma
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, India
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division, CSIR- National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| |
Collapse
|
11
|
Giram PS, Shitole A, Nande SS, Sharma N, Garnaik B. Fast dissolving moxifloxacin hydrochloride antibiotic drug from electrospun Eudragit L-100 nonwoven nanofibrous Mats. Materials Science and Engineering: C 2018; 92:526-539. [DOI: 10.1016/j.msec.2018.06.031] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 06/01/2018] [Accepted: 06/13/2018] [Indexed: 02/07/2023]
|
12
|
Parwe SP, Warkad SD, Mane MV, Shedage PS, Garnaik B. Investigation of the biocompatibility and cytotoxicity associated with ROP initiator and its role in bulk polymerization of l-lactide. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.01.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
13
|
Nande SS, Garnaik B. Organo-clay hybrid hydrophobic spherical styrene divinylbenzene crosslink beads for high-performance carbon dioxide capture. NEW J CHEM 2017. [DOI: 10.1039/c7nj02141k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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]
Abstract
Synthesis of industrially most valuable and low-cost materials for repeated CO2 adsorption at low temperatures and desorption without energy.
Collapse
Affiliation(s)
- Smita S. Nande
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
| |
Collapse
|
14
|
Shyamroy S, Garnaik B, Sivaram S. High molecular weight poly(l-lactic acid)s by polyesterification using diisopropylcarbodiimide (DIPC) and 4-(dimethylamino) pyridinium-p-toluene sulfonate (DPTS). Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1285-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
15
|
Parwe SP, Chaudhari PN, Mohite KK, Selukar BS, Nande SS, Garnaik B. Synthesis of ciprofloxacin-conjugated poly (L-lactic acid) polymer for nanofiber fabrication and antibacterial evaluation. Int J Nanomedicine 2014; 9:1463-77. [PMID: 24741303 PMCID: PMC3970946 DOI: 10.2147/ijn.s54971] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Ciprofloxacin was conjugated with polylactide (PLA) via the secondary amine group of the piperazine ring using PLA and 7-(4-(2-Chloroacetyl) piperazin-1-yl)-1-cyclopropyl-6-fluoro-1, 4-dihydro-4-oxoquinoline-3-carboxylic acid. Zinc prolinate, a biocompatible catalyst was synthesized, characterized, and used in ring opening polymerization of L-lactide. Five different kinds of OH-terminated poly(L-lactide) (two-, three-, four-, six-arm, star-shaped) homopolymers were synthesized by ring opening polymerization of L-lactide in the presence of dodecanol, glycerol, pentaerythritol, dipentaerythritol as initiator and zinc prolinate as a catalyst. The structures of the polymers and conjugates were thoroughly characterized by means of gel permeation chromatography, matrix-assisted laser desorption/ionization – time of flight mass spectrometry, and nuclear magnetic resonance spectroscopy. PLA (molecular weight =100,000) and ciprofloxacin conjugated PLA were used for fabrication of nonwoven nanofiber mat (diameter ranges; 150–400 nm) having pore size (62–102 nm) using electrospinning. The microbiological assessment shows that the release of ciprofloxacin possesses antimicrobial activity. The drug-release behavior of the mat was studied to reveal potential application as a drug delivery system. The result shows that the ciprofloxacin release rates of the PLA conjugate nonwoven nanofiber mat could be controlled by the drug loading content and the release medium. The development of a biodegradable ciprofloxacin system, based on nonwoven nanofiber mat, should be of great interest in drug delivery systems.
Collapse
Affiliation(s)
- Sharad P Parwe
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune, India
| | - Priti N Chaudhari
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune, India
| | - Kavita K Mohite
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune, India
| | - Balaji S Selukar
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune, India
| | - Smita S Nande
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune, India
| | | |
Collapse
|
16
|
Pandey AK, Nande SS, Selukar BS, Garnaik B. Synthesis and characterization of novel value added biodegradable poly(aleuritic acid) from renewable resources (shellac) and invertible amphiphilic behaviors in various solvents. e-Polymers 2010. [DOI: 10.1515/epoly.2010.10.1.1476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractA novel biodegradable polymer poly(aleuritic acid) (PAA) ( M̄w 120,000) was prepared from aleuritic acid, which was obtained from renewable resources (Lac) by using tin catalyst. Aleuritic acid (AL) was protected at 9, 10 position by dimethoxy propane. The protected AL (Pro.AL) was further polymerized to obtain linear protected polyaleuritic acid (PAL) by dehydropolycondensation. Effects of various kinetic and thermodynamic parameters were studied. After polymerization, the deprotection of PAL was carried out. The synthesized PAL and PAA were characterized by using various techniques such as FT-IR, LC-MS, SEC, NMR (1H and 13C), 13C CP/MAS (Cross Polarization / Magic Angle Spinning) of solid PAA, DSC, SEM and TEM etc. The micelle and inverted micelle -structure in polar and nonpolar solvents are highlighted.
Collapse
Affiliation(s)
- Asutosh K. Pandey
- 1Polymer Science and Engineering Division, National Chemical Laboratory Pune-411008. India
| | - Smita S. Nande
- 1Polymer Science and Engineering Division, National Chemical Laboratory Pune-411008. India
| | - Balaji S. Selukar
- 1Polymer Science and Engineering Division, National Chemical Laboratory Pune-411008. India
| | - Baijayantimala Garnaik
- 2Polymer Science and Engineering Division, National Chemical Laboratory Pune-411008. India; fax: 91-020-25902615
| |
Collapse
|
17
|
Shyamroy S, Garnaik B, Sivaram S. Structure of poly(L-lactic acid)s prepared by the dehydropolycondensation ofL-lactic acid with organotin catalysts. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.20679] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
18
|
|
19
|
|
20
|
|
21
|
Garnaik B, Sivaram S. Study of Polymer−Plasticizer Interaction by 13C CP/MAS NMR Spectroscopy: Poly(vinyl chloride)−Bis(2-ethylhexyl) Phthalate System. Macromolecules 1996. [DOI: 10.1021/ma951086x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [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)
| | - Swaminathan Sivaram
- Division of Polymer Chemistry, National Chemical Laboratory, Pune 411008, India
| |
Collapse
|
22
|
Garnaik B. AN IMPROVED SYNTHESIS OF 1-(2-HYDROXYETHYL)URACIL. ORG PREP PROCED INT 1995. [DOI: 10.1080/00304949509458525] [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: 10/20/2022]
|