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Gayathri V, Lobo NP, Vikash VL, Kamini NR, Samanta D. Functionalization of Bacterial Cellulose and Related Surfaces Using a Facile Coupling Reaction by Thermoresponsive Catalyst. ACS Biomater Sci Eng 2023; 9:625-641. [PMID: 36632811 DOI: 10.1021/acsbiomaterials.2c01338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Recently, bacterial cellulose and related materials attracted significant attention for applications such as leather-like materials, wound healing materials, etc., due to their abundance in pure form and excellent biocompatibility. Chemical modification of bacterial cellulose further helps to improve specific properties for practical utility and economic viability. However, in most cases, chemical modification of cellulose materials involves harsh experimental conditions such as higher temperatures or organic solvents, which may destroy the 3-dimensional network of bacterial cellulose, thereby altering its characteristic properties. Hence, in this work, we have adopted the Suzuki coupling methodology, which is relatively unexplored for chemically modifying cellulose materials. As the Suzuki coupling reaction is tolerable against air and water, modification can be done under mild conditions so that the covalently modified cellulose materials remain intact without destroying their 3-dimensional form. We performed Suzuki coupling reactions on cellulose surfaces using a recently developed thermoresponsive catalyst consisting of poly(N-isopropylacrylamide) (PNIPAM)-tagged N-heterocyclic carbene (NHC)-based palladium(II) complex. The thermoresponsive nature of the catalyst particularly helped to perform reactions in a water medium under mild conditions considering the biological nature of the substrates, where separation of the catalyst can be easily achieved by tuning temperature. The boronic acid derivatives have been chosen to alter the wettability behavior of bacterial cellulose. Bacterial cellulose (BC) obtained from fermentation on a lab scale using a cellulose-producing bacterium called Gluconacetobacter kombuchae (MTCC 6913) under Hestrin-Schramm (HS) medium, or kombucha-derived bacterial cellulose (KBC) obtained from kombucha available in the market or cotton-cellulose (CC) was chosen for the surface functionalization to find the methodology's diversity. Movie files in the Supporting Information and figures in the manuscript demonstrated the utility of the methodology for fluorescent labeling of bacterial cellulose and related materials. Finally, contact angle analysis of the surfaces showed the hydrophobic natures of some functionalized BC-based materials, which are important for the practical use of biomaterials in wet climatic conditions.
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Affiliation(s)
- Varnakumar Gayathri
- Polymer Science & Technology division, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai600020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
| | - Nitin P Lobo
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India.,Centre For Analysis, Testing, Evaluation & Reporting Services (CATERS), Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai600 020, India
| | - Vijan Lal Vikash
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India.,Biochemistry & Biotechnology Department, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai600020, India
| | - Numbi Ramudu Kamini
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India.,Biochemistry & Biotechnology Department, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai600020, India
| | - Debasis Samanta
- Polymer Science & Technology division, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai600020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
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Gayathri V, Sheyara RTB, Devassy N, Samanta D. Investigating the degradation of
PET
utilizing
NHC
‐based catalysts and effective reuse of the degradation product as an additive with polyurethane adhesive material. J Appl Polym Sci 2022. [DOI: 10.1002/app.52474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Varnakumar Gayathri
- Polymer Science & Technology Department CSIR‐Central Leather Research Institute, Adyar Chennai India
- Academy of Scientific and Innovative Research Ghaziabad Uttar Pradesh India
| | - R. Tata Birla Sheyara
- Polymer Science & Technology Department CSIR‐Central Leather Research Institute, Adyar Chennai India
| | - Neenu Devassy
- Polymer Science & Technology Department CSIR‐Central Leather Research Institute, Adyar Chennai India
| | - Debasis Samanta
- Polymer Science & Technology Department CSIR‐Central Leather Research Institute, Adyar Chennai India
- Academy of Scientific and Innovative Research Ghaziabad Uttar Pradesh India
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Gayathri V, Jaisankar SN, Samanta D. Temperature and pH responsive polymers: sensing applications. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1988636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Varnakumar Gayathri
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Sellamuthu Nagappan Jaisankar
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Debasis Samanta
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
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