Water Purification Filter Prepared by Layer-by-layer Assembly of Paper Filter and Polypropylene-polyethylene Woven Fabrics Decorated with Silver Nanoparticles

Gajanan Ghodake,Surendra Shinde,Ganesh Dattatraya Saratale,Avinash Kadam,Rijuta Ganesh Saratale,Dae-Young Kim 한국섬유공학회 2020 Fibers and polymers Vol.21 No.4

Cellulose-based water filters are an affordable alternative to remove particulate matter; however, bacteria are toosmall to be removed simply through size exclusion. Cellulose-based water filters prepared by layer-by-layer (LBL) assemblywith polypropylene-polyethylene (PP/PE) fabric decorated with silver nanoparticles (AgNPs) were tested to remove bacteriafrom water samples. The gallic acid reduction method was used to produce potent antibacterial AgNPs; their decoration ontoPP/PE woven fabrics and the preparation of five-layered paper filters were further investigated. The use of acidic conditionsfor loading AgNPs and improving their spatial distribution onto the PP/PE fabrics, as revealed by scanning electronmicroscopy, was found to be correlated with the fabrics’ antibacterial activity. The PP/PE fabrics decorated with a higherdensity of AgNPs (at pH 2) showed 96.7 % and 97.9 % reductions in the growth of E. coli and S. aureus, respectively. Similarly, paper filters fabricated by LBL assembly of AgNP@PP/PE fabrics with cellulose filters deactivated growing E. coli and S. aureus bacteria with good efficiency: approximately 99.4 % and 98.7 %, respectively. The results indicate thatfabricating water purification filters from the cellulose-based paper is feasible with LBL type assembly. The assembled paperfilters could be commercialized for point-of-use water purification in the future to prevent the spread of water-borne diseases.

Gallic acid-functionalized silver nanoparticles as colorimetric and spectrophotometric probe for detection of Al3+ in aqueous medium

Gajanan Ghodake,Surendra Shinde,Avinash Kadam,Rijuta Ganesh Saratale,Ganesh Dattatraya Saratale,Asad Syed,Omar Shair,Marzouq Alsaedi,Dae-Young Kim 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-

Metal chelation-enhanced changes in surface plasmon resonance (SPR) band of gallic acid-functionalizedAgNP solution to monitor aluminum ions (Al3+) is reported herein. In aqueous solution, Al3+ selectivelyinduced a strong absorbance with large shifts up to125 nm from the SPR band with color changing fromorange to red. This study illustrates that hydroxyl groups of phenol affect the response of a probe thattunes the absorbance maxima to a longer wavelength at 525 nm. Moreover, the rapid formation of aAgNP-Al3+ coordination complex was demonstrated by real-time monitoring, adsorptive removal, andenergy dispersive spectroscopy mapping.

Adsorptive remediation of cobalt oxide nanoparticles by magnetized α-cellulose fibers from waste paper biomass

Kadam, Avinash,Saratale, Rijuta Ganesh,Shinde, Surendra,Yang, Jiwook,Hwang, Kyojung,Mistry, Bhupendra,Saratale, Ganesh Dattatraya,Lone, Saifullah,Kim, Dae-Youg,Sung, Jung-Suk,Ghodake, Gajanan Elsevier 2019 Bioresource technology Vol.273 No.-

<P><B>Abstract</B></P> <P>Remediation of engineered-nanomaterials is an up-coming major environmental concern. This study demonstrates adsorptive-remediation of cobalt oxide nanoparticles (CoO NPs) from the water. The α-cellulose-fibers were extracted from waste-paper biomass (WP-αCFs) and magnetized with Fe<SUB>3</SUB>O<SUB>4</SUB> NPs (M-WP-αCFs). The XRD, FT-IR, and TGA were performed for detailed characterization of the newly developed bioadsorbent. The M-WP-αCFs was then applied for adsorptive remediation of CoO NPs. The adsorptive kinetics of CoO NPs adsorption onto the M-WP-αCFs reveals the pseudo-second-order model. The various adsorption isotherm studies revealed Langmuir is a best-fit isotherm. A prominently high adsorption capacity <I>q<SUB>m</SUB> </I> (1567 mg/g) corroborated extraordinary adsorptive potential of M-WP-αCFs. Furthermore, CoO NPs were adsorbed onto M-WP-αCFs were analyzed by the XPS, VSM, and TEM. Therefore, this study gave rise WP biomass extracted and rapidly-separable nano-biocomposite of ‘M-WP-αCFs’ with a high-capacity for CoO NPs remediation and can be further applied in remediation of several other engineered-nanomaterials.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Office paper waste (WP) extracted α-cellulose fibers (αCFs) was magnetized. </LI> <LI> M-WP-αCFs presented an effective adsorptive-remediation of CoO NPs from the water. </LI> <LI> The adsorption kinetics followed a pseudo-second-order rate model. </LI> <LI> Langmuir adsorption isotherm model was best fit to the experimental data. </LI> <LI> M-WP-αCFs can be effective for remediation of engineered NPs from the water. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Therapeutic potential of quercetin as a cardiovascular agent

Patel, Rahul V.,Mistry, Bhupendra M.,Shinde, Surendra K.,Syed, Riyaz,Singh, Vijay,Shin, Han-Seung Elsevier 2018 European journal of medicinal chemistry Vol.155 No.-

<P><B>Abstract</B></P> <P>Flavonoids are integral components of various vegetation and in foods; consequently, they represent an inevitable part of the diet. Historical and epidemiological proof recommend that diet plans consisting of flavonoids such as quercetin have positive health benefits, especially on the heart. Flavonoids have been proven to be active against hypertension, inflammation, diabetes and vascular diseases. Quercetin exhibits significant heart related benefits as inhibition of LDL oxidation, endothelium-independent vasodilator effects, reduction of adhesion molecules and other inflammatory markers, the protective effect on nitric oxide and endothelial function under conditions of oxidative stress, prevention of neuronal oxidative and inflammatory damage and platelet antiaggregant effects. Searching for experimental evidence to validate the cardioprotective effects of quercetin, we review here the recent detailed <I>in vivo</I> studies. Quercetin and its derivatives lead to an enhancement in heart features, indicating the prospective for quercetin to be used therapeutically in the treatment of cardiac diseases. Several evidence-based studies suggest mechanisms to observe cardiovascular diseases such as aging effects, hypertension, angiotensin-converting enzyme activity and endothelial-dependent and independent functions. Different animal models including human are also used to elucidate the <I>in vivo</I> role of quercetin in cardiovascular diseases. The role of quercetin and its derivatives may go beyond their existence in food and has potential as a lead molecule in drug development programs.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Quercetin is a popular dietary anti-oxidant present in numerous vegetables and fruits, tea, and wine. </LI> <LI> Chemically, quercetin is a kind of flavonoid that particularly belongs to the flavonols group. </LI> <LI> The numerous cardioprotective activities of quercetin has been discussed. </LI> <LI> Quercetin protects against atherosclerosis, oxidative stress, cardiotoxicity, endothelial cell dysfunction, heart failure etc. </LI> <LI> Quercetin has potential as a lead molecule in drug development programs for cardiovascular diseases. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P> <I>In vivo</I> evidences for the cardio-protective functions of a natural compound quercetin have been reviewed.</P> <P>[DISPLAY OMISSION]</P>

Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities

Kim, Dae‐,Young,Kadam, Avinash,Shinde, Surendra,Saratale, Rijuta Ganesh,Patra, Jayanta,Ghodake, Gajanan John Wiley Sons, Ltd 2018 Journal of the science of food and agriculture Vol.98 No.3

<P>The applications and benefits of nanotechnology in the agricultural sector have attracted considerable attention, particularly in the invention of unique nanopesticides and nanofertilisers. The contemporary developments in nanotechnology are acknowledged and the most significant opportunities awaiting the agriculture sector from the recent scientific and technical literature are addressed. This review discusses the significance of recent trends in nanomaterial-based sensors available for the sustainable management of agricultural soil, as well as the role of nanotechnology in detection and protection against plant pathogens, and for food quality and safety. Novel nanosensors have been reported for primary applications in improving crop practices, food quality, and packaging methods, thus will change the agricultural sector for potentially better and healthier food products. Nanotechnology is well-known to play a significant role in the effective management of phytopathogens, nutrient utilisation, controlled release of pesticides, and fertilisers. Research and scientific gaps to be overcome and fundamental questions have been addressed to fuel active development and application of nanotechnology. Together, nanoscience, nanoengineering, and nanotechnology offer a plethora of opportunities, proving a viable alternative in the agriculture and food processing sector, by providing a novel and advanced solutions. (c) 2017 Society of Chemical Industry</P>