Agustina Sus Andreani

National Research and Innovation Agency

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Indri Yati

National Research and Innovation Agency

Muhammad Eka Prastya

National Research and Innovation Agency

S. N. Aisyiyah Jenie

National Research and Innovation Agency

Sri Juari Santosa

Universitas Gadjah Mada

Zetryana Puteri Tachrim

Hokkaido University

Eko Sri Kunarti

Universitas Gadjah Mada

Farrah Nurkhaliza

National Research and Innovation Agency

Muhammad Ridwan

University of Indonesia

Cahya Fadilah

National Research and Innovation Agency

Rizna Triana Dewi

Indonesian Institute of Sciences

Cooperative Institutions

National Research and Innovation Agency

Indonesian Institute of Sciences

National Nuclear Energy Agency of Indonesia

University of Indonesia

Bandung Institute of Technology

IPB University

Sumatera Institute of Technology

State University of Semarang

Universitas Gadjah Mada

Syarif Hidayatullah State Islamic University Jakarta

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

An aqueous, paper, and gel-based method by using eco-friendly synthesised silver nanoparticles towards rapid colorimetric sensing of palladium ion

International Journal of Environmental & Analytical Chemistry (2025)

Amanda Putri Safitri Nadia Zahra Revania Salsabila Azzahra Indri Yati Holisha Widiyanto

Environmentally Friendly

Silver nanoparticle

10.1080/03067319.2025.2453598

Cite

Citations (0)

A Rapid Colorimetric Method to Investigate SARS-CoV-2 by Using Gold Nanoparticles Capped with O-Hydroxybenzoic Acid

Meyliana Wulandari Nurachdiani Hasanah Brian Yuliarto Marissa Angelina Robeth Victoria Manurung

A rapid, sensitive, and stable colorimetric sensor applied on gold nanoparticles (AuNPs) has been established. AuNPs were synthesized by o-hydroxybenzoic acid; then, the surface was modified by N-ethyl-N’-(3-dimethyl aminopropyl) carbodiimide hydrochloride (EDC)/N-Hydroxysuccinimide (EDC/NHS) and bioconjugated with SARS-CoV-2 (SC-2) antibody (AuNPs-mAb). O-hydroxybenzoic acid consists of a carboxyl group and thus can reduce one step of the reaction in bioconjugation with SC-2 antibody. AuNPs-mAb were proven to detect the SC-2 antigen as indicated by the decrease of the UV-Vis absorbance and a visible color difference from purplish-red to colorless AuNPs. Detection limit (LoD) and quantification limit (LoQ) were 16.03 and 53.42 ng/mL, respectively, with a linear concentration range of 75-250 ng/mL. SC-2 can be detected with the naked eye using AuNPs-mAb in less than 5-minute incubation time (rapid), and AuNPs-SC-2 are stable for four weeks at 4 °C. The comparative study for AuNPs-mAb performance to detect the SC-2 antigen has been done with an enzyme-linked immunosorbent assay (ELISA). The data show that AuNPs have higher sensitivity than the conventional ELISA method in the same concentration range. Because the detection system based on AuNPs capped with o-hydroxybenzoic acid is rapid, stable, and practical, this method can be an alternative to early screening for COVID-19.

Hydroxybenzoic acid

10.2139/ssrn.4354181

Cite

Citations (0)

The effect of preparation method on the morphology of TiO2 nanowires

AIP conference proceedings (2023)

Indri Yati Cahya Fadilah Muhammad Ridwan Agustina Sus Andreani Muhammad Al Muttaqii

Morphology

10.1063/5.0173254

Cite

Citations (1)

Insight study of trans-ethyl 4-methoxycinnamate isolation and hydrolysis

AIP conference proceedings (2022)

Zetryana Puteri Tachrim Kiki Kurniawan Agustina Sus Andreani Andini Sundowo Teni Ernawati

trans-Ethyl 4-methoxycinnamate is one of the major compounds isolated from the Kaempferia galanga rhizome and an important starting material for various chemical modifications. This study is reported the revisiting method for room temperature isolation of trans-ethyl 4-methoxycinnamate in the hexane extract of K. galanga. Pure trans-ethyl 4-methoxycinnamate can be isolated after recrystallization or the aim of column chromatography which is determined by 1H NMR, 13C NMR, and mass spectrometry. The hydrolysis of trans-ethyl 4-methoxycinnamate was conducted in alkaline conditions to complete the structure elucidation which resulted in the trans-4-methoxy cinnamic acid within excellent yields.

Cinnamic acid

Recrystallization (geology)

Hexane

Alkaline hydrolysis

Proton NMR

10.1063/5.0109932

Cite

Citations (1)

Optimized antibody immobilization on natural silica-based nanostructures for the selective detection of E. coli

RSC Advances (2022)

Diaz Ayu Widyasari Anis Kristiani Ahmad Randy Robeth Viktoria Manurung Rizna Triana Dewi

This study reports for the first time the surface modification of fluorescent nanoparticles derived from geothermal silica precipitate with

Triethoxysilane

Silanization

Biomolecule

Surface Modification

10.1039/d2ra03143d

Cite

Citations (6)

An alternative covalent method for spike SARS-CoV-2 antibody immobilization on gold nanoparticles

AIP conference proceedings (2023)

Agustina Sus Andreani Meyliana Wulandari Isti’anah Isti’anah Indri Yati

spike protein

10.1063/5.0173136

Cite

Citations (0)

Comparative study of well diffusion and disc diffusion method to investigate the antibacterial properties of silver nanoparticles synthesized from Curcuma longa extracts

E3S Web of Conferences (2024)

Farrah Nurkhaliza Mariha Zulfa Risana Aprilina Pubasari Sigit Priatmoko Muhammad Eka Prastya

Green synthesis method for the preparation of silver nanoparticles (AgNPs) using Curcuma longa extracts as reducing and stabilizing agents was studied. The optimization of the synthesis was determined by varying the weight of the extracts, the AgNO 3 concentration, and the reaction time. The results revealed that 3 g of extracts, 0.005 M AgNO 3 , and 30 min of incubation time were the ideal conditions to synthesize AgNPs-Cur. The characterization was assessed by UV-Visible spectroscopy, FTIR, and TEM. UV-Vis spectra showed a surface plasmon resonance (SPR) peak at 428 nm with the stability after 5 months of storage time. FTIR analysis revealed the formation of AgNPs using turmeric extracts and the synthesized AgNPs-Cur had the average size of 22.12 ± 0.60 nm (analyzed by TEM). The well diffusion and disc diffusion method were performed to investigate the antibacterial activity of AgNPs-Cur against Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa . The results concluded that AgNPs-Cur exhibited better bacterial growth inhibitory activities with well diffusion method than disc diffusion method.

Silver nanoparticle

10.1051/e3sconf/202450309003

Cite

Citations (1)

The effect of size control of Gold Nanoparticles Stabilized with α-cyclodextrin and β-cyclodextrin and their antibacterial activities

Materials Chemistry and Physics (2023)

Nurachdiani Hasanah Robeth Viktoria Manurung S. N. Aisyiyah Jenie Indri Yati Muhammad Eka Prastya

Zeta potential

10.1016/j.matchemphys.2023.127762

Cite

Citations (6)

UV–vis Study on β‐Cyclodextrin as Dual Function for Synthesis AgNPs and Antibacterial Application

Macromolecular Symposia (2023)

Farrah Nurkhaliza Ahmad Fathoni Indri Yati Muhammad Eka Prastya S. N. Aisyiyah Jenie

Abstract The current study reveals the synthesis of silver nanoparticles (AgNPs) with β‐cyclodextrin (β‐CDs) as a dual function, reducing, and stabilizing agent. UV–vis study is carried out to monitor the optimum condition of AgNPs formation. It is observed that setting pH at 12, 1:33 concentration ratio of AgNO 3 to β‐CDs, and 5 min of incubation time are the optimum condition to synthesize AgNPs. The stability of AgNPs 4 weeks after synthesized is confirmed by the UV–vis spectra. Fourier transform infrared (FTIR) characterization reveals there is a peak appearing assigned to C=O which proves a redox reaction occurs between AgNO 3 and β‐CDs. Gram‐positive ( Bacillus subtilis and Staphylococcus aureus ) and Gram‐negative bacteria ( Escherichia coli and Pseudomonas aeruginosa ) are tested to investigate the antibacterial activity of AgNPs. This study shows that AgNPs exhibit inhibition of bacterial growth.

Silver nanoparticle

10.1002/masy.202200182

Cite

Citations (0)

Synthesis of Gold Nanoparticles Capped-Benzoic Acid Derivative Compounds (o-, m-, and p-Hydroxybenzoic Acid)

Indonesian Journal of Chemistry (2019)

Agustina Sus Andreani Eko Sri Kunarti Sri Juari Santosa

The effect of a hydroxyl functional group of the benzoic acid derivative compound, i.e. o-hydroxybenzoic acid, m-hydroxybenzoic acid, and p-hydroxybenzoic acid on the synthesis of AuNPs has been studied. It was revealed that the pH, heating time, the concentration of capping agent and the concentration of Au3+ affected the formation of AuNPs. We discovered that o-hydroxybenzoic acid possessed the highest stability, yet it needed the highest concentration of Au3+ and faster reaction time than p-hydroxybenzoic acid and slower than m-hydroxybenzoic acid. The stability was verified by means of UV-Vis spectrophotometer, XRD, TEM, Particle Size Analyzer (PSA), and Zeta Potential with an aging time of more than 5 months. We concluded that o-hydroxybenzoic acid acquired the most effective redox reaction instead of m-hydroxybenzoic acid and p-hydroxybenzoic acid, resulted in the smaller sized and unaggregated AuNPs. We also confirmed that the hydroxyl group of o-hydroxybenzoic acid, m-hydroxybenzoic acid and p-hydroxybenzoic acid is the functional group responsible for the reduction of Au3+ to Au0.

Hydroxybenzoic acid

Benzoic acid

Derivative (finance)

10.22146/ijc.34440

Cite

Citations (5)