Antimicrobial properties of silver nanoparticles synthesized by bioaffinity adsorption coupled with TiO<sub>2</sub> photocatalysis

Chen, Enzan; Su, Haijia; Tan, Tianwei

doi:10.1002/jctb.2533

Cited by 15 publications

(10 citation statements)

References 60 publications

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“…, in which their integral positions changed little except for several absorption peaks. The absorption peak located at 3447.3 cm −1 was due to the stretching vibrations of ‐OH, ‐NH and intermolecular hydrogen bonding . That at 2920.6 cm −1 was the stretching vibration absorption peaks of C‐H .…”

Section: Resultsmentioning

confidence: 96%

“…Pan et al prepared surface ion‐imprinted polymer (S‐IIP) based on sodium trititanate whiskers as support particles for the selective adsorption of Co(II) ions from aqueous solution . Chen et al synthesized silver nanoparticles‐loaded chitosan–TiO 2 adsorbent through photocatalysis successfully for the recycling of silver . However, these ion‐imprinted materials have some disadvantages, such as complicated technology, irregular shape and inhomogeneous properties.…”

Section: Introductionmentioning

confidence: 99%

“…26 Chen et al synthesized silver nanoparticles-loaded chitosan-TiO 2 adsorbent through photocatalysis successfully for the recycling of silver. 27 However, these ion-imprinted materials have some disadvantages, such as complicated technology, irregular shape and inhomogeneous properties. Therefore, innovative technologies and fewer processing steps for preparing ion-imprinted materials with uniform size, highly regular shape, homogeneous features and convenient separation are needed.…”

Section: Introductionmentioning

confidence: 99%

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A facile ion imprinted synthesis of selective biosorbent for Cu²⁺ via microfluidic technology

Zhu

Bai

Luo

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND Heavy metal pollution has become one of the most serious environmental problems. Novel approaches are needed for removal of heavy metal from water. Copper, a familiar heavy metal, has attracted much attention for its remarkable toxic domino offect at elevated concentrations. RESULTS A novel ion imprinted approach combined with microfluidic technology was explored. Cu2+ was taken as ionic template and chitosan was used as carrier material. Chemical crosslinking was applied in the formation of imprinted sign. A selective biosorbent of ion‐imprinted microspheres (IIMS) with uniform size, regular shape and high performance for Cu2+ had been prepared. The SEM, FTIR, EDS, XPS were employed to detect their distinct features. IIMS showed much higher adsorption capacity (qm=81.97 mg g−1) than those non‐imprinted chitosan microspheres (CSMS). The adsorption isotherm fitted the Langmuir equation while thermodynamic adsorption results were considered strong proof of an adsorption exothermal process. IIMS exhibited excellent selectivity for Cu2+ when competitive metal ions and Cu2+ co‐existed together, which profited from the specific spaces of Cu2+ template left after crosslinking and desorption. Results confirmed that chemical adsorption was dominant and amino played an important role in adsorption process. CONCLUSION IIMS showed high adsorption capacity and excellent selectivity for Cu2+. Combining microfluidic technology with an ion‐imprinted method proved to be a promising process for preparing selective materials. © 2017 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A facile ion imprinted synthesis of selective biosorbent for Cu²⁺ via microfluidic technology

Zhu

Bai

Luo

et al. 2017

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

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“…To improve the Ag + adsorption and the Ag loading on fibers, a relatively stable Ag + complex, [Ag(NH 2 ) 4 (CH 2 ) 4 ] 2+ , can be formed through the reaction between AgNO 3 and NH 2 CH 2 CH 2 NH 2 , as shown in Eqn (4). As a green reductant, KNaC 4 H 4 O 6 ·4H 2 O was chosen to reduce the Ag + into Ag to reduce or avoid the use of toxic NaBH 4 , as shown in Eqn (5).…”

Section: Resultsmentioning

confidence: 99%

“…Silver nanoparticles have been widely employed to fabricate nanohybrids with robust bactericidal efficiency. [3][4][5] Their antibacterial mechanism is due to the release of Ag + ions that inactivate microorganisms by destroying cell membranes and their protein function and interfering with their DNA replication. 6 However, the DNA damage and cell cycle arrest have raised safety concerns.…”

Section: Introductionmentioning

confidence: 99%

Silver‐doped carbon fibers at low loading capacity that display high antibacterial properties

Zhang

Chen

Sun

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Renewable resources have been considered for producing many advanced materials. In this respect, silver‐doped carbon‐based materials with a low loading capacity and high antibacterial activity can also be generated via environmentally friendly routes and from renewable resources. RESULTS Silver‐doped carbon fibers were prepared from wood and cotton fibers via complexation and reduction reactions for depositing silver on the fibers and subsequently via carbonization of the loaded fibers. Silver loading before carbonization enhanced the stability of silver on the carbonized fibers, decreased silver loss (from 30 to 12%) and lowered the silver loading (5.66%) needed to achieve excellent antibacterial activity. However, wood‐based silver‐doped carbon fibers performed better than cotton‐based carbon fibers with respect to loss of antibacterial activity (12% at a silver loading of 5.66% versus 24% at a silver loading of 7.97% in 800 h respectively). These results are attributed to more uniformity in the distribution of silver nanoparticles in the porous structure of wood fibers than in cotton fibers. CONCLUSION The wood‐based carbon fibers exhibited better antibacterial activity and stronger affinity for maintaining silver and lower required silver loadings, and the sequence of silver loading and carbonization was crucial in developing silver‐loaded carbon fibers with good antibacterial performance. © 2019 Society of Chemical Industry

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Molecular imprinting science and technology: a survey of the literature for the years 2004-2011

2014

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SummaryHerein we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004 to 2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004 which were omitted in the first instalment of this series covering the years 1930 to 2003. 1 In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.2

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Antimicrobial properties of silver nanoparticles synthesized by bioaffinity adsorption coupled with TiO₂ photocatalysis

Abstract: BACKGROUND: On the basis of effective bioaffinity adsorption of Ag + , silver nanoparticles (Ag NPs) were synthesized on the surface of chitosan-TiO 2 adsorbent (CTA) by TiO 2 photocatalysis for crystal growth.

Cited by 15 publications

References 60 publications

A facile ion imprinted synthesis of selective biosorbent for Cu²⁺ via microfluidic technology

A facile ion imprinted synthesis of selective biosorbent for Cu²⁺ via microfluidic technology

Silver‐doped carbon fibers at low loading capacity that display high antibacterial properties

Molecular imprinting science and technology: a survey of the literature for the years 2004-2011

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Antimicrobial properties of silver nanoparticles synthesized by bioaffinity adsorption coupled with TiO2 photocatalysis

Abstract: BACKGROUND: On the basis of effective bioaffinity adsorption of Ag + , silver nanoparticles (Ag NPs) were synthesized on the surface of chitosan-TiO 2 adsorbent (CTA) by TiO 2 photocatalysis for crystal growth.

Cited by 15 publications

References 60 publications

A facile ion imprinted synthesis of selective biosorbent for Cu2+ via microfluidic technology

A facile ion imprinted synthesis of selective biosorbent for Cu2+ via microfluidic technology

Silver‐doped carbon fibers at low loading capacity that display high antibacterial properties

Molecular imprinting science and technology: a survey of the literature for the years 2004-2011

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Product

Resources

About

Antimicrobial properties of silver nanoparticles synthesized by bioaffinity adsorption coupled with TiO₂ photocatalysis

A facile ion imprinted synthesis of selective biosorbent for Cu²⁺ via microfluidic technology

A facile ion imprinted synthesis of selective biosorbent for Cu²⁺ via microfluidic technology