Platinum/carbon dots nanocomposites from palm bunch hydrothermal synthesis as highly efficient peroxidase mimics for ultra-low H2O2 sensing platform through dual mode of colorimetric and fluorescent detection

Saengsrichan, Aphinan; Khemthong, Pongtanawat; Wanmolee, Wanwitoo; Youngjan, Saran; Phanthasri, Jakkapop; Arjfuk, Pariyapat; Pongchaikul, Pisut; Ratchahat, Sakhon; Posoknistakul, Pattaraporn; Laosiripojana, Navadol; Wu, Kevin Chien-Chang; Sakdaronnarong, Chularat

doi:10.1016/j.aca.2022.340368

Cited by 11 publications

(4 citation statements)

References 113 publications

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“…This clearly revealed that lignin has been extracted out from the hydrothermal fractionation and subsequent bleaching process due to the chemical oxidation reaction of hydrogen peroxide. It was reported that alkaline hydrogen peroxide dissociates oxygen with free electrons and radicals [ 31 ] which interact with residual hemicellulose, lignin and chromophores [ 32 ]. This process reduces the chromophore molecular size, and additionally decomposes chromophore, thus led the cellulose color alteration to paler and brighter during bleaching.…”

Section: Resultsmentioning

confidence: 99%

Cryo-Induced Cellulose-Based Nanogel from Elaeis guineensis for Antibiotic Delivery Platform

Hajidariyor

Nuntawad

Somsaen

et al. 2023

IJMS

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Cryo-induced hydrogel from cellulose is a new class of biomaterials for drug delivery, cell delivery, bone and skin tissue engineering for cell proliferation and regeneration applications. This research aimed to synthesize cryo-induced hydrogel from cellulose and carboxymethyl cellulose (CMC) produced from empty bunch’s cell wall of Elaeis guineensis. First, the experiment was to produce cellulose-rich material using hot-compressed water extraction followed by alkaline delignification and bleaching with H2O2. The obtained bleached EFB cellulose was used as the substrate for CMC, and the optimal condition with the highest degree of carboxyl substitution (DS) of 0.75 was achieved when varying NaOH and monochloroacetic acid concentration as well as etherification temperature using fractional factorial design. For cryogelation study, hydrogels were synthesized from cellulose, CMC and beta-cyclodextrin (β-CD) by dissolving cellulose-based matrix in a NaOH/urea system, and the cellulose (CEL) solution was frozen spontaneously at −40 °C followed by high speed mixing to loosen cellulose fibrils. Epichlorohydrin (ECH) and Polyethylene glycol diglycidyl ether (PEGDE) were used as a cross-linker. First, the ratio of cellulose and CMC with different amounts of ECH was investigated, and subsequently the proper ratio was further studied by adding different crosslinkers and matrices, i.e., CMC and β-CD. From the result, the ECH crosslinked CMC-CEL (E-CMC-CEL) gel had the highest swelling properties of 5105% with the average pore size of lyophilized hydrogel of 300 µm. In addition, E-CMC-CEL gel had the highest loading and release capability of tetracycline in buffer solution at pH 7.4 and 3.2. At pH 7.4, tetracycline loading and release properties of E-CMC-CEL gel were 65.85 mg g−1 dry hydrogel and 46.48 mg g−1 dry hydrogel (70.6% cumulative release), respectively. However, at pH 3.2, the loading and release capabilities of Tetracycline were moderately lower at 16.25 mg g−1 dry hydrogel and 5.06 mg g−1 dry hydrogel, respectively. The findings presented that E-CMC-CEL hydrogel was a suitable material for antibiotic tetracycline drug carrying platform providing successful inhibitory effect on Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, respectively.

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Section: Resultsmentioning

confidence: 99%

Cryo-Induced Cellulose-Based Nanogel from Elaeis guineensis for Antibiotic Delivery Platform

Hajidariyor

Nuntawad

Somsaen

et al. 2023

IJMS

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“…This was presumably due to the binding efficiency of NS/CDs toward silica particles. From the zeta potential analysis, the surface electrostatic force of MSN was positively charged while CDs and NS/CDs from hydrothermal synthesis were found in our previous study to be highly negative charged ( Saengsrichan et al, 2022a ; Saengsrichan et al, 2022b ). Therefore, external electrostatic force led to enhance the binding efficiency of MSN toward the surface of all CDs, and NS/CDs.…”

Section: Resultsmentioning

confidence: 87%

“…The N- and S-doping agents at different concentration from 0.20 mol L −1 to 0.40 mol L −1 were mixed with EFB at the same solid: liquid ratio. The CDs and NS/CDs synthesis procedure of our group and the characterization were reported elsewhere ( Saengsrichan et al, 2022a ; Saengsrichan et al, 2022b ; Sangjan et al, 2022 ). The CDs and NS/CDs samples were stored at 4 °C for further use and characterization.…”

Section: Methodsmentioning

confidence: 99%

Nanostructured N/S doped carbon dots/mesoporous silica nanoparticles and PVA composite hydrogel fabrication for anti-microbial and anti-biofilm application

Pongchaikul,

Hajidariyor,

Khetlai

et al. 2023

International Journal of Pharmaceutics: X

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“…83 It can be seen that CD-based hybrid nanozymes not only have higher activity than HRP, but also show superior POD-like activity compared with other nanomaterials. Saengsrichan et al 84 prepared CDs/PtNPs-based hybrid nanozymes with high POD-like activity, and realized a colorimetric/fluorescence dual modality platform for H 2 O 2 sensing. The detection of H 2 O 2 can be as low as 0.01 mM (Fig.…”

Section: Cd-based Hybrid Nanozymesmentioning

confidence: 99%

Design of carbon dots as nanozymes to mediate redox biological processes

Qian

Zhang

2023

J. Mater. Chem. B

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Platinum/carbon dots nanocomposites from palm bunch hydrothermal synthesis as highly efficient peroxidase mimics for ultra-low H2O2 sensing platform through dual mode of colorimetric and fluorescent detection

Cited by 11 publications

References 113 publications

Cryo-Induced Cellulose-Based Nanogel from Elaeis guineensis for Antibiotic Delivery Platform

Cryo-Induced Cellulose-Based Nanogel from Elaeis guineensis for Antibiotic Delivery Platform

Nanostructured N/S doped carbon dots/mesoporous silica nanoparticles and PVA composite hydrogel fabrication for anti-microbial and anti-biofilm application

Design of carbon dots as nanozymes to mediate redox biological processes

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