Article
Polymer Science
Muhammad Arif
Summary: The combination of palladium nanoparticles and smart polymer microgels has attracted significant interest due to their unique properties and potential applications in various fields. The responsive nature of microgels in these hybrids holds great promise for a wide range of uses. The architecture of these hybrid microgels plays a vital role in determining their specific applications.
Review
Chemistry, Physical
Muhammad Arif, Zahoor H. Farooqi, Ahmad Irfan, Robina Begum
Summary: The unique combination of gold nanoparticles and smart polymer microgels has shown great potential in biomedical, environmental, and catalytic applications, with various morphologies and architectures available in literature. The structure of hybrid microgels plays a crucial role in their applications, leading to the design of specific assemblies for particular purposes. Recent advancements in the classification, synthesis, properties, characterization, and applications of gold nanostructures loaded into microgels have been reviewed, focusing on their biomedical, catalytic, environmental, and sensing applications in the past five years.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Jaweria Ambreen, Fatemah F. Al-Harbi, Hina Sakhawat, Muhammad Ajmal, Hina Naeem, Zahoor H. Farooqi, Nayab Batool, Muhammad Siddiq
Summary: In this study, poly(N-vinylcaprolactam-co-acrylic acid) microgel was synthesized via free radical polymerization and fabricated with silver nanoparticles. The microgels exhibited excellent sensing and catalytic performance, making them potential candidates for pH sensing and organic compound reduction reactions.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Azhar Ahmad, Prashun Ghosh Roy, Shuiqin Zhou, Ahmad Irfan, Farah Kanwal, Robina Begum, Zahoor H. Farooqi
Summary: Chitosan based monodisperse poly[chitosan-N-isopropylmethacrylamide-acrylic acid] [P(CNA)] microgels were synthesized and used as micro-reactors to prepare Ag-P(CNA) hybrid microgels via chemical reduction of Ag+ ions. The resulting hybrid microgels were characterized by TEM, FTIR spectroscopy, and UV-vis spectroscopy. The catalytic potential of the Ag-P(CNA) hybrid system for the reduction of nitroarenes was evaluated using sodium borohydride as a reductant in aqueous medium. The Ag-P(CNA) hybrid microgel system exhibited stable, economical, and efficient catalytic activity for the rapid reduction of nitroarenes both individually and simultaneously.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Muhammad Imran Din, Rida Khalid, Zaib Hussain
Summary: This study successfully synthesized poly-(N-isopropylmethacrylamide-co-methacrylic acid) microgels for stabilizing copper oxide nanoparticles and used them as catalysts for dye degradation. The microgels not only functioned as microreactors, but also efficiently synthesized CuO NPs. The CuO NPs loaded microgel catalyst showed excellent performance in dye degradation.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Iftikhar Hussain, Zahoor H. Farooqi, Faisal Ali, Robina Begum, Ahmad Irfan, Weitai Wu, Xiaofei Wang, Muhammad Shahid, Jan Nisar
Summary: In this study, colloidal particles of Poly(styrene-N-isopropylmethacrylamide-methacrylic acid) [P(SNM)CS] and Ag-P(SNM)CS hybrid particles were synthesized via two-step precipitation polymerization, characterized using various techniques, and their catalytic activity in the reduction of 4-nitrophenol was examined. The results show that Ag-P(SNM)CS hybrid particles exhibit excellent stability and catalytic properties, making them a promising candidate for various applications.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Chemistry, Physical
Muhammad Arif
Summary: This article reviews the combination of bimetallic nanoparticles and smart microgels/hydrogels, which has garnered significant attention in the past decade. These composite materials are promising for various applications due to the sensitive behavior of microgels. The article focuses on the morphology of hybrid microgels based on bimetallic nanoparticles and their applications in different fields.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Yuhua Mao, Hao Zhang, Saad Ahmed, Shanshan Li, Shouhao Zhang, Jianli Wang
Summary: In this study, a novel and efficient catalytic membrane comprising well-dispersed silver nanoparticles was reported. The membrane could catalyze the reduction of 4-nitrophenol efficiently and showed good stability. The improved catalytic activity was attributed to the fully accessible surface of silver nanoparticles and the unique structure of the membrane.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Polymer Science
Viktor Sabadasch, Pascal Fandrich, Marco Annegarn, Thomas Hellweg
Summary: Poly-N-n-propylacrylamide based microgels with embedded Pd-nanoparticles are synthesized with varying amounts of methacrylic acid (MAc) comonomer. The influence of the comonomer content on catalytic activity and thermoresponsive properties of the hybrid particles is investigated. The results show that the amount of MAc and pH change significantly affect the thermoresponsivity of the microgels. Additionally, the charge density and hydrophilicity within the microgel template greatly affect the reactivity of the embedded nanoparticles.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Viktor Sabadasch, Maxim Dirksen, Pascal Fandrich, Thomas Hellweg
Summary: This work presents core-shell microgels with tailor-made architecture and properties for the incorporation of palladium nanoparticles, resulting in enhanced catalytic activity and recyclability.
FRONTIERS IN CHEMISTRY
(2022)
Review
Engineering, Chemical
Khalida Naseem
Summary: This article presents the research progress of Fe3O4 NPs loaded composite microgel particles, including their preparation methodologies, properties, and applications. It has been found that these composite microgel particles have exceptional magnetic properties and find applications in various fields.
REVIEWS IN CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Analytical
Zahoor H. Farooqi, Hamadia Sultana, Robina Begum, Muhammad Usman, Muhammad Ajmal, Jan Nisar, Ahmad Irfan, Muhammad Azam
Summary: The aim of this study was to investigate the catalytic efficiency of the Ag-P(NAA) microgel system towards degradation of an organic dye in aqueous medium. The results showed that the hybrid microgels can completely degrade the dye in a few minutes, indicating the potential for industrial wastewater treatment.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Ghulam Mustafa, Prashun Ghosh Roy, Shuiqin Zhou, Ahmad Irfan, Aijaz Rasool Chaudhry, Robina Begum, Zahoor H. Farooqi
Summary: Silver nanoparticles were successfully loaded into P(NIPAHEMA) microgels using in situ reduction method. The presence of silver nanoparticles in the microgels was confirmed through various characterization techniques. The composite microparticles showed core-shell morphology, and the silver nanoparticles were mainly found in the shell region, resulting in high catalytic activity towards the reduction of p-nitrophenol.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Materials Science, Multidisciplinary
Muhammad Arif
Summary: This comprehensive review focuses on the combination of metal nanoparticles in smart crosslinked polymers and their stimuli responsive behavior, as well as various applications. It provides detailed descriptions of the design and morphologies of copper nanoparticles in microgel systems, as well as synthetic methods and characterization techniques to assist new researchers in selecting suitable methods. The review also critically discusses the applications of copper nano particles loaded in microgels, such as catalysis, dye removal, biodiesel synthesis, conducting materials, antibacterial properties, drug delivery, and sensing, while highlighting future innovative prospects for new researchers.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Environmental Sciences
Iftikhar Hussain, Muhammad Shahid, Faisal Ali, Ahmad Irfan, Robina Begum, Zahoor H. Farooqi
Summary: Poly(styrene-N-isopropylmethacrylamide-methacrylic acid) core-shell microgel particles were synthesized using seed-mediated emulsion polymerization, and silver nanoparticles were loaded into the shell of the microgels by in situ reduction of Ag+ ions. The synthesized microgels and hybrid microgels were characterized using various techniques, and the stability of Ag nanoparticles within the microgel system was also investigated. The catalytic properties of the silver nanoparticles loaded microgel system were studied, and it was found that the hybrid system was capable of efficiently degrading dyes and other toxic chemicals.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Thermodynamics
Ghulam Ali, Jan Nisar, Afzal Shah, Zahoor Hussain Farooqi, Munawar Iqbal, Muhammad Raza Shah, Hafiz Badaruddin Ahmad
Summary: Pyrolysis of waste polystyrene in the presence of natural clay at 410 degrees C and 60 min produced a maximum liquid fuel yield of 86.68%. The pyrolyzates contained hydrocarbons ranging from C1-C5 in the gaseous fraction and aromatics, alkanes, and alkenes in the liquid fraction. The fuel properties of the liquid fraction resembled gasoline and diesel oil, making it suitable for industrial and domestic use.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Iftikhar Hussain, Muhammad Shahid, Faisal Ali, Ahmad Irfan, Robina Begum, Zahoor H. Farooqi
Summary: Poly(styrene-N-isopropylmethacrylamide-methacrylic acid) core-shell microgel particles were synthesized using seed-mediated emulsion polymerization, and silver nanoparticles were loaded into the shell of the microgels by in situ reduction of Ag+ ions. The synthesized microgels and hybrid microgels were characterized using various techniques, and the stability of Ag nanoparticles within the microgel system was also investigated. The catalytic properties of the silver nanoparticles loaded microgel system were studied, and it was found that the hybrid system was capable of efficiently degrading dyes and other toxic chemicals.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Chemistry, Physical
Saira Irshad, Hamadia Sultana, Muhammad Usman, Nadia Akram, Zahoor H. Farooqi, Amnah Yusaf, Muhammad Faizan Nazar
Summary: The synergistic mechanism of a cationic surfactant CTAB and its composite solutions with nonionic surfactants TX-100 and Tw-20 in improving the aqueous solubility of Direct Black 2 dye was studied. It was found that solubilization was greatly enhanced in the cationic-nonionic mixed micelle systems, attributed to higher aggregation number, lower critical micelle concentration (CMC) and more hydrophobic interior of micelle.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2023)
Review
Engineering, Chemical
Iftikhar Hussain, Muhammad Shahid, Faisal Ali, Ahmad Irfan, Zahoor H. Farooqi, Robina Begum
Summary: This article critically reviewed the synthesis, properties, and uses of methacrylic acid based microgels and their hybrids. These microgels exhibit fast and reversible swelling/deswelling behavior in response to small changes in external stimuli such as pH and ionic strength, making them widely applicable in nanotechnology, drug delivery, sensing, and catalysis. The article also provides a critical review of current research development in this field along with proposed future studies for further growth.
REVIEWS IN CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Sania Amjad, Saadia Shaukat, Hafiz Muhammad Abd Ur Rahman, Muhammad Usman, Zahoor H. Farooqi, Muhammad Faizan Nazar
Summary: This study focuses on the interaction between cationic dye methylene blue (MB) and anionic surfactant sodium dodecyl sulfate (SDS), as well as its mixed micelles with nonionic surfactant Triton X-114 (TX-114). The results show that the mixed micellar system is more effective in removing and solubilizing MB from aqueous systems. However, an increase in the concentration of the nonionic surfactant weakens the dye-surfactant interaction in the ionic-nonionic mixed micellar system.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Muhammad Arif, Urooj Fatima, Abdul Rauf, Zahoor Hussain Farooqi, Mohsin Javed, Muhammad Faizan, Shahid Zaman
Summary: This study reports the synthesis of a new copper-based 2D metal-organic framework using a newly synthesized ABA-MA ligand. The resulting material exhibits excellent photocatalytic activity for degrading organic dyes, making it a promising candidate for wastewater treatment.
Review
Chemistry, Analytical
Zahoor H. H. Farooqi, Goran T. T. Vladisavljevic, Nicole Pamme, Arooj Fatima, Robina Begum, Ahmad Irfan, Minjun Chen
Summary: Smart microgels have gained much attention due to their applications in various scientific fields. The morphology, size, and size distribution of microgels strongly affect their applications. Droplet microfluidic techniques are widely used to fabricate monodisperse microgel particles for various applications. This report presents recent research progress in the fabrication, characterization, properties, and applications of microgel particles synthesized by microfluidic methods.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2023)
Article
Energy & Fuels
Nafees Ur Rehman, Jan Nisar, Ghulam Ali, Ali Ahmad, Afzal Shah, Zahoor H. Farooqi, Faisal Muhammad
Summary: The study used biomass-derived sulfonated tea waste as a catalyst to extract oil from pomegranate peels through pyrolysis. The catalyst was characterized using FTIR, SAA, SEM, and XRD. Thermo-catalytic decomposition was conducted, and GC-MS was used to determine the composition of the bio-oil. The catalyst successfully lowered the pyrolysis temperature and activation energy, while also improving the quality of the bio-oil by increasing the presence of value-added compounds.
Review
Engineering, Chemical
Ahmad Hassan, Iqra Sajid, Muhammad Akmal, Muniba Aslam, Prashun Ghosh Roy, Shuiqin Zhou, Ahmad Irfan, Muhammad Shahid, Robina Begum, Zahoor H. Farooqi
Summary: This article provides an overview of the classification, preparation methods, properties, and applications of hollow microgels and their hybrids in modern research. These smart polymer hollow microgels and smart hybrid microgels can respond to specific environmental stimuli and are therefore suitable for drug delivery, sensing, catalysis, and other fields. This review presents the current advancements in this area and offers future perspectives and suggestions for further research.
REVIEWS IN CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Khalilullah Abed, Ejaz Ahmed, Hamza Shehzad, Ahsan Sharif, Zahoor H. Farooqi, Zhirong Liu, Limin Zhou, Jinbo Ouyang, Robina Begum, Ahmad Irfan, Aijaz Rasool Chaudhry, Muhammad Imran Din
Summary: In this study, a new method is used to synthesize graft copolymerized chitosan with acetylacetone (AA-g-CS) through free-radical induced grafting. Biocomposite hydrogel beads with improved mechanical strength are prepared by uniformly intercalating AA-g-CS and rutile into amino carbamate alginate matrix. The FTIR, SEM, and EDX analysis confirm the thorough characterization of the biocomposites. The sorption process is shown to be spontaneous and endothermic, and the maximum monolayer sorption capacity is determined.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Khalida Naseem, Khalil Ahmad, Aneela Anwar, Zahoor H. Farooqi, Jawayria Najeeb, Muhammad Ahmer Iftikhar, Warda Hassan, Ain Ul Batool, Sajjad Haider, Muhammad Saeed Akhtar
Summary: In this study, Raphanus caudatus (radish pod) leaves biomass was used as an adsorbent to remove crystal violet (CV) and Rhodamine B (RhB) dye from water. The results showed that R. caudatus leaves biomass had strong adsorption capacity for both CV and RhB dyes. The adsorption process followed pseudo second order kinetics and Langmuir adsorption isotherm model. Additionally, the increase in surface entropy of the adsorbent indicated an endothermic nature of the process.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
